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210 results on '"Silber, Ariel M."'

1. Genome-scale metabolic models highlight stage-specific differences in essential metabolic pathways in Trypanosoma cruzi.

Author

Shiratsubaki, Isabel S, Fang, Xin, Souza, Rodolpho OO, Palsson, Bernhard O, Silber, Ariel M, and Siqueira-Neto, Jair L

Subjects
Drug Discovery, Life Cycle Stages, Metabolic Networks and Pathways, Proteomics, Protozoan Proteins, Trypanocidal Agents, Trypanosoma cruzi, Tropical Medicine, Biological Sciences, Medical and Health Sciences
Abstract

Chagas disease is a neglected tropical disease and a leading cause of heart failure in Latin America caused by a protozoan called Trypanosoma cruzi. This parasite presents a complex multi-stage life cycle. Anti-Chagas drugs currently available are limited to benznidazole and nifurtimox, both with severe side effects. Thus, there is a need for alternative and more efficient drugs. Genome-scale metabolic models (GEMs) can accurately predict metabolic capabilities and aid in drug discovery in metabolic genes. This work developed an extended GEM, hereafter referred to as iIS312, of the published and validated T. cruzi core metabolism model. From iIS312, we then built three stage-specific models through transcriptomics data integration, and showed that epimastigotes present the most active metabolism among the stages (see S1-S4 GEMs). Stage-specific models predicted significant metabolic differences among stages, including variations in flux distribution in core metabolism. Moreover, the gene essentiality predictions suggest potential drug targets, among which some have been previously proven lethal, including glutamate dehydrogenase, glucokinase and hexokinase. To validate the models, we measured the activity of enzymes in the core metabolism of the parasite at different stages, and showed the results were consistent with model predictions. Our results represent a potential step forward towards the improvement of Chagas disease treatment. To our knowledge, these stage-specific models are the first GEMs built for the stages Amastigote and Trypomastigote. This work is also the first to present an in silico GEM comparison among different stages in the T. cruzi life cycle.

Published
2020

2. Correction to: Open chromatin analysis in Trypanosoma cruzi life forms highlights critical differences in genomic compartments and developmental regulation at tDNA loci

Author

Lima, Alex Ranieri Jerônimo, de Sousa Silva, Herbert Guimarães, Poubel, Saloe Bispo, Rosón, Juliana Nunes, de Lima, Loyze Paola Oliveira, Costa-Silva, Héllida Marina, Gonçalves, Camila Silva, Galante, Pedro A. F., Holetz, Fabiola, Motta, Maria Cristina Machado, Silber, Ariel M., Elias, M. Carolina, and da Cunha, Julia Pinheiro Chagas

Published
2022
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3. Open chromatin analysis in Trypanosoma cruzi life forms highlights critical differences in genomic compartments and developmental regulation at tDNA loci

Author

Lima, Alex Ranieri Jerônimo, Silva, Herbert Guimarães de Sousa, Poubel, Saloe, Rosón, Juliana Nunes, de Lima, Loyze Paola Oliveira, Costa-Silva, Héllida Marina, Gonçalves, Camila Silva, Galante, Pedro A. F., Holetz, Fabiola, Motta, Maria Cristina Machado M., Silber, Ariel M., Elias, M. Carolina, and da Cunha, Julia Pinheiro Chagas

Published
2022
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6. Correction: How much (ATP) does it cost to build a trypanosome? A theoretical study on the quantity of ATP needed to maintain and duplicate a bloodstream-form Trypanosoma brucei cell

Author

Nascimento, Janaina F., primary, O. Souza, Rodolpho O., additional, Alencar, Mayke B., additional, Marsiccobetre, Sabrina, additional, Murillo, Ana M., additional, Damasceno, Flávia S., additional, M. Girard, Richard B. M., additional, Marchese, Letícia, additional, Luévano-Martinez, Luis A., additional, Achjian, Renan W., additional, Haanstra, Jurgen R., additional, M. Michels, Paul A., additional, and Silber, Ariel M., additional

Published
2023
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7. How much (ATP) does it cost to build a trypanosome? A theoretical study on the quantity of ATP needed to maintain and duplicate a bloodstream-form Trypanosoma brucei cell

Author

Nascimento, Janaina F., primary, Souza, Rodolpho O. O., additional, Alencar, Mayke B., additional, Marsiccobetre, Sabrina, additional, Murillo, Ana M., additional, Damasceno, Flávia S., additional, Girard, Richard B. M. M., additional, Marchese, Letícia, additional, Luévano-Martinez, Luis A., additional, Achjian, Renan W., additional, Haanstra, Jurgen R., additional, Michels, Paul A. M., additional, and Silber, Ariel M., additional

Published
2023
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9. How much (ATP) does it cost to build a trypanosome? A theoretical study on the quantity of ATP needed to maintain and duplicate a bloodstream-formTrypanosoma bruceicell

Author

Nascimento, Janaina F., primary, Souza, Rodolpho O. O., additional, Alencar, Mayke B., additional, Marsiccobetre, Sabrina, additional, Murillo, Ana M., additional, Damasceno, Flávia S., additional, Girard, Richard B. M. M., additional, Marchese, Letícia, additional, Luévano-Martinez, Luis A., additional, Achjian, Renan W., additional, Haanstra, Jurgen R., additional, Michels, Paul A. M., additional, and Silber, Ariel M., additional

Published
2023
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10. Protein kinases on carbon metabolism: potential targets for alternative chemotherapies against toxoplasmosis.

Author

Amilton dos Santos, Denis, Santos Souza, Higo Fernando, Silber, Ariel M., de Arruda Campos Brasil de Souza, Tatiana, and Rodrigues Ávila, Andréa

Subjects
PROTEIN kinases, CARBON metabolism, TOXOPLASMOSIS, POISONS, ENERGY metabolism
Abstract

The apicomplexan parasite Toxoplasma gondii is the causative agent of toxoplasmosis, a global disease that significantly impacts human health. The clinical manifestations are mainly observed in immunocompromised patients, including ocular damage and neuronal alterations leading to psychiatric disorders. The congenital infection leads to miscarriage or severe alterations in the development of newborns. The conventional treatment is limited to the acute phase of illness, without effects in latent parasites; consequently, a cure is not available yet. Furthermore, considerable toxic effects and long-term therapy contribute to high treatment abandonment rates. The investigation of exclusive parasite pathways would provide new drug targets for more effective therapies, eliminating or reducing the side effects of conventional pharmacological approaches. Protein kinases (PKs) have emerged as promising targets for developing specific inhibitors with high selectivity and efficiency against diseases. Studies in T. gondii have indicated the presence of exclusive PKs without homologs in human cells, which could become important targets for developing new drugs. Knockout of specific kinases linked to energy metabolism have shown to impair the parasite development, reinforcing the essentiality of these enzymes in parasite metabolism. In addition, the specificities found in the PKs that regulate the energy metabolism in this parasite could bring new perspectives for safer and more efficient therapies for treating toxoplasmosis. Therefore, this review provides an overview of the limitations for reaching an efficient treatment and explores the role of PKs in regulating carbon metabolism in Toxoplasma, discussing their potential as targets for more applied and efficient pharmacological approaches. [ABSTRACT FROM AUTHOR]

Published
2023
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12. The Trypanosoma cruzi TcrNT2 Nucleoside Transporter Is a Conduit for the Uptake of 5-F-2′-Deoxyuridine and Tubercidin Analogues

Author

Aldfer, Mustafa M., primary, Alfayez, Ibrahim A., additional, Elati, Hamza A. A., additional, Gayen, Nilanjana, additional, Elmahallawy, Ehab Kotb, additional, Milena Murillo, Ana, additional, Marsiccobetre, Sabrina, additional, Van Calenbergh, Serge, additional, Silber, Ariel M., additional, and de Koning, Harry P., additional

Published
2022
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13. Additional file 1 of Open chromatin analysis in Trypanosoma cruzi life forms highlights critical differences in genomic compartments and developmental regulation at tDNA loci

Author

Lima, Alex Ranieri Jerônimo, Silva, Herbert Guimarães de Sousa, Poubel, Saloe, Rosón, Juliana Nunes, de Lima, Loyze Paola Oliveira, Costa-Silva, Héllida Marina, Gonçalves, Camila Silva, Galante, Pedro A. F., Holetz, Fabiola, Motta, Maria Cristina Machado M., Silber, Ariel M., Elias, M. Carolina, and da Cunha, Julia Pinheiro Chagas

Abstract

Additional file 1: Figure S1. A. Data summary for sequenced samples (EPI – epimastigote; META – metacyclic trypomastigote) and control for each replicate and read pairs. B. FastQC mean quality scores of sequenced samples. C. Scheme of the pipeline used to explore the FAIRE-seq data. D. Number of mapped reads against the Trypanosoma cruzi Dm28c genome for each dataset (biological replicates). Blue bars represent total dataset reads; orange bars indicate the mapped reads; gray bars show the remaining mapped reads with MAPQ scores above 10. The percentage is relative to the total reads of each dataset (blue bars). Spearman correlation (E) and PCA (F) of read counts for each dataset (biological replicates) from epimastigote (EPI), metacyclic trypomastigote (metacyclic) life forms and control samples generated with deepTools. Figure S2. A. Representative IGV snapshot of FAIRE-seq data mapped against the T. cruzi Dm28c genome (contig PRFA01000010). The data were normalized using RPGC (see Materials and Methods in main text). Epimastigote biological replicates (EPI-1 and EPI-2) are shown in red, and metacyclic trypomastigote biological replicates (META-1 and META-2) are shown in blue. Datasets not filtered with MAPQ score 10 are labeled as “WithoutQ10”. At the genomic features, repeat regions are represented in yellow. The dashed rectangle highlights a long repeat region and its low coverage upon MAPQ10 removal. B. IGV snapshots of two contigs comparing the raw mapped FAIRE read profile to the removal of multimapped reads (Q10 - arrows) in epimastigotes and metacyclic trypomastigotes. Core and disruptive genomic compartments are shown as red and green tracks, respectively. Figure S3. A. Superposition of FAIRE-seq (red) and MNase-seq (blue) in epimastigotes. The y-axis represents RPGC normalized tag counts for FAIRE-seq on the right side and MNase-seq on the left side. The profile CDSs transcribed by RNA Pol II is showed. B. Comparison of core and disruptive compartments of MNase-seq data using RPGC counts in epimastigotes (red) and trypomastigotes (blue). The median values for epimastigores were 2.04 and 1.09 for the core and disruptive compartments, respectively; for trypomastigote, the median values were 2.13 and 1.14. *** Wilcoxon-Mann-Whitney test with p-value = 0.001. C. RPGC tag counts at multigenic family genes and other CDSs transcribed by RNA Pol II for epimastigotes (red) and metacyclic trypomastigotes (blue). D. Summary plots for virulence factors in epimastigotes and metacyclics. *** Wilcoxon-Mann-Whitney test with p-value = 0.001. Figure S4. A. Landscape profile of cSSR (blue) and dSSR (green) showing median values in RPGC log2 ratio of epimastigotes/metacyclics (left). Start and End represent the first and last bases of each feature, respectively. Boxplots showing RPCG counts for dSSR (upper) and cSSR (lower) for epimastigotes (red) and metacyclics (blue). *** Wilcoxon-Mann–Whitney test with p value = 0.001. B. The percentage of bases of multifamily genes for each polycistron according to clustering is shown in Figure 4D. In B, clusterization was performed considering 1 kb upstream and downstream from the polycistron, while in C, clusterization considered only the PTU. Statistical analysis was performed using the Wilcoxon-Mann-Whitney test (*** p-value = 0.001; * p-value = 0.05). D. Landscape profiles of all CDSs (upper) and clustering based on the RPGC log2 ratio of epimastigotes/metacyclics (lower). Figure S5. Genes classified as high, medium and low expressed based on TPM values for epimastigote (red) and metacyclic trypomastigote (blue) life forms. *** Wilcoxon-Mann-Whitney test with p-value = 0.001. Figure S6. A. IGV snapshots of FAIRE-seq enrichment in epimastigotes (duplicates – red) compared to metacyclics (duplicates – blue) in three different loci. tDNAs are highlighted in yellow rectangles. B. Number of tRNA genes in each cluster. The tRNA genes grouped in each cluster after hierarchical clustering, as shown in Figure 6C, were counted and plotted in column graphics according to R group classification of the amino acids. C. Representative scheme of tRNA gene localization at divergent, convergent and codirectional PTUs. The arrows indicate the sense of transcription in each PTU. D. Quantification of tRNA-FISH UUC (Glu),GUC (Asp) in epimastigote (blue) and metacyclic (green) forms. Mean gray values represent intensity per area. Unpaired T-test: ** (p-value > 0.05), and *** (p-value < 0.0001). E. Quantification of tRNA-Northern blot UUC and GUC in Epi (blue) and MT (green) forms. The expression levels are represented by intensity per area (Mean gray values). Unpaired T-test: * (p-value < 0.05), and *** (p-value < 0.0001). ns, non-significant.

Published
2022
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14. Open Chromatin Analysis in Trypanosoma Cruzi Life Forms Highlights Critical Differences in Genomic Compartments and Developmental Regulation at tDNA Loci

Author

Lima, Alex RJ, primary, Poubel, Saloe B, additional, Rosón, Juliana N, additional, de Lima, Loyze PO, additional, Costa-Silva, Hellida M, additional, Silva, Herbert GS, additional, Gonçalves, Camila S, additional, AF Galante, Pedro, additional, Holetz, Fabiola, additional, Motta, Maria Cristina MM, additional, Silber, Ariel M, additional, Elias, MCarolina, additional, and Cunha, Julia PC, additional

Published
2021
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15. Higher expression of proline dehydrogenase altered mitochondrial function and increased Trypanosoma cruzi differentiation in vitro and in the insect vector

Author

Mantilla, Brian S., primary, Paes-Vieira, Lisvane, additional, de Almeida Dias, Felipe, additional, Calderano, Simone G., additional, Elias, Maria Carolina, additional, Cosentino-Gomes, Daniela, additional, Oliveira, Pedro L., additional, Meyer-Fernandes, José Roberto, additional, and Silber, Ariel M., additional

Published
2021
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16. Open chromatin analysis inTrypanosoma cruzilife forms highlights critical differences in genomic compartments and developmental regulation at tDNA loci

Author

Lima, Alex Ranieri Jerônimo, primary, Poubel, Saloe Bispo, additional, Rosón, Juliana Nunes, additional, de Lima, Loyze Paola Oliveira, additional, Costa-Silva, Héllida Marina, additional, de Sousa Silva, Herbert Guimarães, additional, Gonçalves, Camila Silva, additional, Galante, Pedro A. F., additional, Holetz, Fabiola, additional, Motta, Maria Cristina Machado M., additional, Silber, Ariel M., additional, Elias, M. Carolina, additional, and da Cunha, Julia Pinheiro Chagas, additional

Published
2021
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17. Mitochondrial physiology: Gnaiger Erich et al ― MitoEAGLE Task Group

Author

Gnaiger, Erich, Aasander Frostner, Eleonor, Abdul Karim, Norwahidah, Abdel-Rahman, Engy Ali, Abumrad, Nada A, Acuna-Castroviejo, Dario, Adiele, Reginald C, Ahn, Bumsoo, Alencar, MB, Ali, Sameh S, Almeida, Angeles, Alton, Lesley, Alves, Marco G, Amati, Francesca, Amoedo, Nivea Dias, Amorim, Ricardo, Anderson, Ethan J, Andreadou, Ioanna, Antunes, Diana, Arago, Marc, Aral, Cenk, Arandarcikaite, Odeta, Arias-Reyes, Christian, Armand, Anne-Sophie, Arnould, Thierry, Avram, Vlad Florian, Axelrod, Christopher L, Bairam, Aida, Bailey, Damian M, Bajpeyi, Sudip, Bajzikova, Martina, Bakker, Barbara M, Barlow, Jonathan, Bardal, Tora, Banni, A, Bastos Sant'Anna Silva, Ana Carolina, Batterson, Philip, Battino, Maurizio, Bazil, Jason, Beard, Daniel A, Beleza, Jorge, Bednarczyk, Piotr, Bello, Fiona, Ben-Shachar, Dorit, Bento Guida, Jose Freitas, Bergdahl, Andreas, Berge, Rolf K, Bergmeister, Lisa, Bernardi, Paolo, Berridge, Michael V, Bettinazzi, Stefano, Bishop, David, Blier, Pierre U, Blindheim, Dan Filip, Boardman, Neoma T, Boetker, Hans Erik, Borchard, Sabine, Boros, Mihaly, Borsheim, Elisabet, Borras, Consuelo, Borutaite, Vilma, Botella, Javier, Bouillaud, Frederic, Bouitbir, Jamal, Boushel, Robert C, Bovard, Josh, Bravo-Sagua, Roberto, Breton, Sophie, Brown, David A, Brown, Guy C, Brown, Robert A, Brozinick, Joseph T, Buettner, Garry R, Burtscher, Johannes, Bustos, Matilde, Calabria, Elisa, Calbet, Jose A, Calzia, Enrico, Cannon, Daniel T, Cano Sanchez, Maria, Canto Alvarez, Carles, Cardinale, D, Cardoso, Luiza Helena Daltro, Carvalho, Eugenia, Casado Pinna, Marta, Cassar, Samantha, Castelo, Maria P, Castilho, Roger F, Cavalcanti-de-Albuquerque, Joao Paulo, Cecatto, Cristiane, Celen, Murat C, Cervinkova, Zuzana, Chabi, Beatrice, Chakrabarti, Lisa, Chakrabarti, Sasanka, Chaurasia, Bhagirath, Chen, Quan, Chicco, Adam J, Chinopoulos, Christos, Chowdhury, Subir K, Cizmarova, Beata, Clementi, Emilio, Coen, Paul M, Cohen, Bruce H, Coker, Robert H, Collin-Chenot, Anne, Coughlan, Melinda T, Coxito, Petro, Crisostomo, Luis, Crispim, Marcell, Crossland, Hannah, Dahdah, Norma, Dalgaard, Louise T, Dambrova, Maija, Danhelovska, Tereza, Darveau, Charles A, Darwin, Paula M, Das, Anibh M, Dash, Ranjan K, Davidova, Eliska, Davis, Michael S, Dayanidhi, Sudarshan, De Bem, Andreza Fabro, De Goede, Paul, De Palma, Clara, De Pinto, Vito, Dela, F, Dembinska-Kiec, Aldona, Detraux, Damien, Devaux, Yvan, Di Marcello, Marco, Di Paola, Floriana Jessica, Dias, Candida, Dias, Tania R, Diederich, Marc, Distefano, Giovanna, Djafarzadeh, Siamak, Doermann, Niklas, Doerrier, Carolina, Dong, Lan-Feng, Donnelly, Chris, Drahota, Zdenek, Duarte, Filipe Valente, Dubouchaud, Herve, Duchen, Michael R, Dumas, Jean-Francois, Durham, William J, Dymkowska, Dorota, Dyrstad, Sissel E, Dyson, Alex, Dzialowski, Edward M, Eaton, Simon, Ehinger, Johannes, Elmer, Eskil, Endlicher, Rene, Engin, Ayse B, Escames, Germaine, Evinova, Andrea, Ezrova, Zuzana, Falk, Marni Joy, Fell, David A, Ferdinandy, Peter, Ferko, Miroslav, Fernandez-Ortiz, Marisol, Erika, Fernandez-Vizarra, Ferreira, Julio Cesar Batista, Ferreira, Rita, Ferri, Alessandra, Festuccia, WT, Fessel, Joshua P, Filipovska, Aleksandra, Fisar, Zdenek, Fischer, Christine, Fischer, Michael, Fisher, Gordon, Fisher, Joshua J, Fontanesi, Flavia, Forbes-Hernandez, Tamara Y, Ford, Ellen, Fornaro, Mara, Fuertes Agudo, Marina, Fulton, Montana, Galina, Antonio, Galkin, Alexander, Gallee, Leon, Galli, Gina L, Gama Perez, Pau, Gan, Zhenji, Ganetzky, Rebecca, Gao, Yun, Garcia, Geovana S, Garcia-Rivas, Gerardo, Garcia-Roves, Pablo Miguel, Garcia-Souza, Luiz Felipe, Garlid, Keith D, Garrabou, Gloria, Garten, Antje, Gastaldelli, Amalia, Gayen, Jiaur, Genders, Amanda J, Genova, Maria Luisa, Giampieri, Francesca, Glatz, Jan FC, Giovarelli, Matteo, Goikoetxea Usandizaga, Naroa, Goncalo Teixeira da Silva, Rui, Goncalves, Debora Farina, Gonzalez-Armenta, Jenny L, Gonzalez-Francesqua, A, Gonzalez-Freire, Marta, Gonzalo, Hugo, Goodpaster, Bret H, Gorr, Thomas A, Gourlay, Campbell W, Grams, Bente, Granata, Cesare, Grefte, Sander, Grilo, Luis, Guarch, Meritxell Espino, Gueguen, Naig, Gumeni, Sentiljana, Haas, Clarissa B, Haavik, Jan, Hachmo, Yafit, Haendeler, Judith, Haider, Markus, Hajrulahovic, Anesa, Hamann, Andrea, Han, Jin, Han, Woo Hyun, Hancock, Chad R, Hand, Steven C, Handl, Jiri, Hansikova, Hana, Hardee, Justin P, Hargreaves, Ian P, Harper, Mary Ellen, Harrison, David K, Hassan, Hazirah, Hatakova, Zuzana, Hausenloy, Derek J, Heales, Simon JR, Heiestad, Christina, Hellgren, Kim T, Henrique, Alexandrino, Hepple, Russell T, Hernansanz-Agustin, Pablo, Hewakapuge, Sudinna, Hickey, Anthony J, Ho, Dieu Hien, Hoehn, Kyle L, Hoel, Frederik, Holland, Olivia J, Holloway, Graham P, Holzner, Lorenz, Hoppel, Charles L, Hoppeler, H, Hoppel, Florian, Houstek, Josef, Huete-Ortega, Maria, Hyrossova, Petra, Iglesias-Gonzalez, Javier, Indiveri, Cesare, Irving, Brian A, Isola, Raffaella, Iyer, Shilpa, Jackson, Christophe B, Jadiya, Pooja, Jana, Prado Fabian, Jandeleit-Dahm, K, Jang, David H, Jang, Young C, Janowska, Joanna, Jansen, Kirsten, Jansen-Duerr, Pidder, Jansone, Baiba, Jarmuszkiewicz, Wieslawa, Jaskiewicz, Anna, Jaspers, Richard T, Jedlicka, Jan, Jerome, Estaquier, Jespersen, Nichlas R, Jha, Rajan K, Joseph, Vincent, Juhasz, Laszlo, Jurczak, Michael J, Jurk, Diana, Kaambre, Tuuli, Kaczor, Jan J, Kainulainen, Heikki, Kampa, Rafal Pawel, Kandel, Sunil M, Kane, Daniel A, Kapferer, Werner, Kapnick, Senta, Kappler, Lisa, Karabatsiakis, Alexander, Karavaeva, Iuliia, Karkucinska-Wieckowska, Agnieszka, Kaur, Sarbjot, Keijer, Jaap, Keller, Markus A, Keppner, Gloria, Khamoui, Andy V, Kidere, Dita, Kilbaugh, Todd, Kim, Hyoung Kyu, Kim, Julian KS, Kimoloi, Sammy, Klepinin, Aleksandr, Klepinina, Lyudmila, Klingenspor, Martin, Klocker, Helmut, Komlódi, Timea, Kolasa, Iris, Koopman, Werner JH, Kopitar-Jerala, Natasa, Kowaltowski, Alicia J, Kozlov, Andrey V, Krajcova, Adela, Krako Jakovljevic, Nina, Kristal, Bruce S, Krycer, Jamer R, Kuang, Jujiao, Kucera, Otto, Kuka, Janis, Kwak, Hyo Bum, Kwast, Kurt, Kwon, Oh Sung, Laasmaa, Martin, Labieniec-Watala, Magdalena, Lai, Nicola, Lalic, Nebojsa M, Land, John M, Lane, Nick, Laner, Verena, Lanza, Ian R, Laouafa, Sofien, Larsen, Steen, Larsen, Terje S, Lavery, Gareth G, Lazou, Antigone, Ledo, Ana Margarida, Lee, Hong Kyu, Leeuwenburgh, Christiaan, Lehti, Maarit, Lemieux, Helene, Lenaz, Giorgio, Lerfall, Jorgen, Li, Pingan A, Li Puma, Lance, Liang, Liping, Liepins, Edgars, Lin, Chien-Te, Liu, Jiankang, Lopez, Luis C, Lucchinetti, Eliana, Ma, Tao, Macedo, Maria P, Machado, Ivo F, Maciej, Sarah, MacMillan-Crow, Lee Ann, Magalhaes, Jose, Magri, Andrea, Majtnerova, Pavlina, Makarova, Elina, Makrecka-Kuka, Marina, Malik, Afshan N, Marcouiller, Francois, Marechal, Amandine, Markova, Michaela, Markovic, Ivanka, Martin, Daniel S, Martins, Ana Dias, Martins, Joao D, Maseko, Tumisang Edward, Maull, Felicia, Mazat, Jean Pierre, McKenna, Helen T, McKenzie, Matthew, McMillan, Duncan GG, McStay, Gavin P, Menze, Michael A, Mendham, Amy, Mercer, John R, Merz, Tamara, Messina, Angela, Meszaros, Andras T, Methner, Axel, Michalak, Slawomir, Mila Guasch, Maria, Minuzzi, Luciele M, Misirkic Marjanovic, Maja, Moellering, Douglas R, Moisoi, Nicoleta, Molina, Anthony JA, Montaigne, David, Moore, Anthony L, Moore, Christy, Moreau, Kerrie, Moreira, Bruno P, Moreno-Sanchez, Rafael, Mracek, Tomas, Muccini, Anna Maria, Muntane, Jordi, Muntean, Danina M, Murray, Andrew J, Musiol, Eva, Nabben, Miranda, Nair, K Sreekumaran, Nehlin, Jan O, Nemec, Michal, Nesci, Salvatore, Neufer, P Darrell, Neuzil, Jiri, Neviere, Remi, Newsom, Sean A., Norman, Jennifer, Nozickova, Katerina, Nunes, Sara, Nuoffer, Jean-Marc, O'Brien, Kristin, O'Brien, Katie A, O'Gorman, Donal, Olgar, Yusuf, Oliveira, Ben, Oliveira, Jorge, Oliveira, Marcus F, Oliveira, Marcos Tulio, Oliveira, Pedro F, Oliveira, Paulo J, Olsen, Rolf Erik, Orynbayeva, Zulfiya, Osiewacz, Heinz D, Paez, Hector, Pak, Youngmi K, Pallotta, Maria L, Palmeira, Carlos M, Parajuli, Nirmala, Passos, Joao F, Passrugger, Manuela, Patel, Hemal H, Pavlova, Nadia, Pavlovic, Kasja, Pecina, Petr, Pedersen, Tina M, Perales, Jose Carlos, Pereira da Silva Grilo da Silva, Filomena, Pereira, Rita, Perez Valencia, Juan A, Perks, Kara L, Pesta, Dominik, Petit, Patrice X, Pettersen Nitschke, Ina Katrine, Pichaud, Nicolas, Pichler, Irene, Piel, Sarah, Pietka, Terri A, Pinho, Sonia A, Pino, Maria F, Pirkmajer, Sergej, Place, Nicolas, Plangger, Mario, Porter, Craig, Porter, Richard K, Preguica, Ines, Procaccio, Vincent, Prochownik, Edward V, Prola, Alexandre, Pulinilkunnil, Thomas, Puskarich, Michael A, Puurand, Marju, Radenkovic, Filip, Ramzan, Rabia, Rattan, Suresh IS, Reano, Simone, Reboredo, Patricia, Rees, Bernard B, Renner-Sattler, Kathrin, Rial, Eduardo, Robinson, Matthew M, Roden, Michael, Rodrigues, Ana Sofia, Rodriguez, Enrique, Rodriguez-Enriquez, Sara, Roesland, Gro Vatne, Rolo, Anabela Pinto, Ropelle, Eduardo R, Roshanravan, Baback, Rossignol, Rodrigue, Rossiter, Harry B, Rousar, Tomas, Rubelj, Ivica, Rybacka-Mossakowska, Joanna, Saada, Ann, Safaei, Zahra, Sarlak, Saharnaz, Salin, Karine, Salvadego, Desy, Sandi, Carmen, Saner, Nicholas, Santos, Diana, Sanz, Alberto, Sardao, Vilma, Sazanov, Leonid A, Scaife, Paula, Scatena, Roberto, Schartner, Melanie, Scheibye-Knudsen, Morten, Schilling, Jan M, Schlattner, Uwe, Schmitt, Sabine, Schneider Gasser, Edith Mariane, Schoenfeld, Peter, Schots, Pauke C, Schulz, Rainer, Schwarzer, Christoph, Scott, Graham R, Selman, Colin, Sendon, Pamella Marie, Shabalina, Irina G, Sharma, Pushpa, Sharma, Vipin, Shevchuk, Igor, Shirazi, Reza, Shiroma, Jonathan G, Siewiera, Karolina, Silber, Ariel M, Silva, Ana Maria, Sims, Carrie A, Singer, Dominique, Singh, Brijesh Kumar, Skolik, Robert A, Smenes, Benedikte Therese, Smith, James, Soares, Félix Alexandre Antunes, Sobotka, Ondrej, Sokolova, Inna, Solesio Torregrosa, M De la Encarnacion, Soliz, Jorge, Sonkar, Vijay K, Sova, Marina, Sowton, Alice P, Sparagna, Genevieve C, Sparks, Lauren M, Spinazzi, Marco, Stankova, Pavla, Starr, Jonathan, Stary, Creed, Stefan, Eduard, Stelfa, Gundega, Stepto, Nigel K, Stevanovic, Jelena, Stiban, Johnny, Stier, Antoine, Stocker, Roland, Storder, Julie, Sumbalova, Zuzana, Suomalainen, Wartiovaara Anu, Suravajhala, Prashanth, Svalbe, Baiba, Swerdlow, Russel H, Swiniuch, Daria, Szabo, Ildiko, Szewczyk, Adam, Szibor, Marten, Tanaka, Masashi, Tandler, Bernard, Tarnopolsky, Mark A, Tausan, Daniel, Tavernarakis, Nektarios, Tepp, Kersti, Teodoro, J, Thakkar, Himani, Thapa, Maheshwo, Thyfault, John P, Tomar, Dhanendra, Ton, Riccardo, Torp, May-Kristin, Torres-Quesada, Omar, Towheed, Atif, Treberg, Jason R, Tretter, Laszlo, Trewin, Adam J, Trifunovic, Aleksandra, Trivigno, Catherine, Tronstad, Karl Johan, Trougakos, Ioannis P, Truu, Laura, Tuncay, Erkan, Turan, Belma, Tyrrell, Daniel J, Urban, Tomas, Urner, Sofia, Valentine, Joseph Marco, Van Bergen, Nicole J, Van der Ende, Miranda, Varricchio, Frederick, Vaupel, Peter, Vella, Joanna, Vendelin, Marko, Verdaguer, IB, Vercesi, Anibal E, Vernerova, Andrea, Victor, Victor Manuel, Vieira Ligo Teixeira, Camila, Vidimce, Josif, Viel, Christian, Vieyra, Adalberto, Vilks, Karlis, Villena, Joseph A, Vincent, Vinnyfred, Vinogradov, Andrey D, Viscomi, Carlo, Vitorino, Rui Miguel Pinheiro, Vlachaki Walker, Julia, Vogt, Sebastian, Volani, Chiara, Volska, Kristine, Votion, Dominique-Marie, Vujacic-Mirski, Ksenija, Wagner, Brett A, Ward, Marie Louise, Warnsmann, Verena, Wasserman, David H, Watala, Cezary, Wei, Yau-Huei, Weinberger, Klaus M, White, Sarah, Whitfield, Jamie, Wickert, Anika, Wieckowski, Mariusz R, Wiesner, Rudolf J, Williams, Caroline M, Winwood-Smith, Hugh, Wohlgemuth, Stephanie E, Wohlwend, Martin, Wolff, Jonci Nikolai, Wrutniak-Cabello, Chantal, Wuest, Rob C I, Yokota, Takashi, Zablocki, Krzysztof, Zanon, Alessandra, Zanou, Nadege, Zaugg, Kathrin, Zaugg, Michael, Zdrazilova, Lucie, Zhang, Yong, Zhang, Yi Zhu, Zikova, Alena, Zischka, Hans, Zorzano, Antonio, Zujovic, Tijana, Zurmanova, Jitka, Zvejniece, Liga, Lagarrigue, Sylviane, Munro, Daniel, Pereira, Susana, Laranjinha, Joäo, Hecker, Matthias, Jusic, Amela, Prigione, Alessandro, Sommer, Natascha, Weissig, Volkmar, Guida, Bento, G, John G, Jones, JG, AMS - Tissue Function & Regeneration, AMS - Rehabilitation & Development, Physiology, Mito-Eagle - Evolution-Age-Gender-Lifestyle-Environment (Mito-Eagle), Oroboros Instruments, Dynamique Musculaire et Métabolisme (DMEM), Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Gnaiger Erich, Aasander Frostner Eleonor, Abdul Karim Norwahidah, Abdel-Rahman Engy Ali, Abumrad Nada A, Acuna-Castroviejo Dario, Adiele Reginald C, Ahn Bumsoo, Alencar Mayke Bezerra, Ali Sameh S, Almeida Angeles, Alton Lesley, Alves Marco G, Amati Francesca, Amoedo Nivea Dias, Amorim Ricardo, Anderson Ethan J, Andreadou Ioanna, Antunes Diana, Arago Marc, Aral Cenk, Arandarcikaite Odeta, Arias-Reyes Christian, Armand Anne-Sophie, Arnould Thierry, Avram Vlad F, Axelrod Christopher L, Bailey Damian M, Bairam Aida, Bajpeyi Sudip, Bajzikova Martina, Bakker Barbara M, Banni Aml, Bardal Tora, Barlow J, Bastos Sant'Anna Silva Ana Carolina, Batterson Philip M, Battino Maurizio, Bazil Jason N, Beard Daniel A, Bednarczyk Piotr, Beleza Jorge, Bello Fiona, Ben-Shachar Dorit, Bento Guida Jose Freitas, Bergdahl Andreas, Berge Rolf K, Bergmeister Lisa, Bernardi Paolo, Berridge Michael V, Bettinazzi Stefano, Bishop David J, Blier Pierre U, Blindheim Dan Filip, Boardman Neoma T, Boetker Hans Erik, Borchard Sabine, Boros Mihaly, Boersheim Elisabet, Borras Consuelo, Borutaite Vilma, Botella Javier, Bouillaud Frederic, Bouitbir Jamal, Boushel Robert C, Bovard Josh, Bravo-Sagua Roberto, Breton Sophie, Brown David A, Brown Guy C, Brown Robert Andrew, Brozinick Joseph T, Buettner Garry R, Burtscher Johannes, Bustos Matilde, Calabria Elisa, Calbet Jose AL, Calzia Enrico, Cannon Daniel T, Cano Sanchez Maria Consolacion, Canto Alvarez Carles, Cardinale Daniele A, Cardoso Luiza HD, Carvalho Eugenia, Casado Pinna Marta, Cassar Samantha, Castelo Rueda Maria Paulina, Castilho Roger F, Cavalcanti-de-Albuquerque Joao Paulo, Cecatto Cristiane, Celen Murat C, Cervinkova Zuzana, Chabi Beatrice, Chakrabarti Lisa, Chakrabarti Sasanka, Chaurasia Bhagirath, Chen Quan, Chicco Adam J, Chinopoulos Christos, Chowdhury Subir Kumar, Cizmarova Beata, Clementi Emilio, Coen Paul M, Cohen Bruce H, Coker Robert H, Collin-Chenot Anne, Coughlan Melinda T, Coxito Pedro, Crisostomo Luis, Crispim Marcell, Crossland Hannah, Dahdah Norma Ramon, Dalgaard Louise T, Dambrova Maija, Danhelovska Tereza, Darveau Charles-A, Darwin Paula M, Das Anibh Martin, Dash Ranjan K, Davidova Eliska, Davis Michael S, Dayanidhi Sudarshan, De Bem Andreza Fabro, De Goede Paul, De Palma Clara, De Pinto Vito, Dela Flemming, Dembinska-Kiec Aldona, Detraux Damian, Devaux Yvan, Di Marcello Marco, Di Paola Floriana Jessica, Dias Candida, Dias Tania R, Diederich Marc, Distefano Giovanna, Djafarzadeh Siamak, Doermann Niklas, Doerrier Carolina, Dong Lan-Feng, Donnelly Chris, Drahota Zdenek, Duarte Filipe Valente, Dubouchaud Herve, Duchen Michael R, Dumas Jean-Francois, Durham William J, Dymkowska Dorota, Dyrstad Sissel E, Dyson Alex, Dzialowski Edward M, Eaton Simon, Ehinger Johannes K, Elmer Eskil, Endlicher Rene, Engin Ayse Basak, Escames Germaine, Evinova Andrea, Ezrova Zuzana, Falk Marni J, Fell David A, Ferdinandy Peter, Ferko Miroslav, Fernandez-Ortiz Marisol, Fernandez-Vizarra Erika, Ferreira Julio Cesar B, Ferreira Rita Maria P, Ferri Alessandra, Fessel Joshua Patrick, Festuccia William T, Filipovska Aleksandra, Fisar Zdenek, Fischer Christine, Fischer Michael J, Fisher Gordon, Fisher Joshua J, Fontanesi Flavia, Forbes-Hernandez Tamara Y, Ford Ellen, Fornaro Mara, Fuertes Agudo Marina, Fulton Montana, Galina Antonio, Galkin Alexander, Gallee Leon, Galli Gina L J, Gama Perez Pau, Gan Zhenji, Ganetzky Rebecca, Gao Yun, Garcia Geovana S, Garcia-Rivas Gerardo, Garcia-Roves Pablo Miguel, Garcia-Souza Luiz F, Garlid Keith D, Garrabou Gloria, Garten Antje, Gastaldelli Amalia, Gayen Jiaur, Genders Amanda J, Genova Maria Luisa, Giampieri Francesca, Giovarelli Matteo, Glatz Jan FC, Goikoetxea Usandizaga Naroa, Goncalo Teixeira da Silva Rui, Goncalves Debora Farina, Gonzalez- Armenta Jenny L, Gonzalez-Franquesa Alba, Gonzalez-Freire Marta, Gonzalo Hugo, Goodpaster Bret H, Gorr Thomas A, Gourlay Campbell W, Grams Bente, Granata Cesare, Grefte Sander, Grilo Luis, Guarch Meritxell Espino, Gueguen Naig, Gumeni Sentiljana, Haas Clarissa, Haavik Jan, Hachmo Yafit, Haendeler Judith, Haider Markus, Hajrulahovic Anesa, Hamann Andrea, Han Jin, Han Woo Hyun, Hancock Chad R, Hand Steven C, Handl Jiri, Hansikova Hana, Hardee Justin P, Hargreaves Iain P, Harper Mary- Ellen, Harrison David K, Hassan Hazirah, Hatokova Zuzana, Hausenloy Derek J, Heales Simon JR, Hecker Matthias, Heiestad Christina, Hellgren Kim T, Henrique Alexandrino, Hepple Russell T, Hernansanz- Agustin Pablo, Hewakapuge Sudinna, Hickey Anthony J, Ho Dieu Hien, Hoehn Kyle L, Hoel Fredrik, Holland Olivia J, Holloway Graham P, Holzner Lorenz, Hoppel Charles L, Hoppel Florian, Hoppeler Hans, Houstek Josef, Huete-Ortega Maria, Hyrossova Petra, Iglesias-Gonzalez Javier, Indiveri Cesare, Irving Brian A, Isola Raffaella, Iyer Shilpa, Jackson Christopher Benjamin, Jadiya Pooja, Jana Prado Fabian, Jandeleit-Dahm Karin, Jang David H, Jang Young Charles, Janowska Joanna, Jansen Kirsten M, Jansen-Duerr Pidder, Jansone Baiba, Jarmuszkiewicz Wieslawa, Jaskiewicz Anna, Jaspers Richard T, Jedlicka Jan, Jerome Estaquier, Jespersen Nichlas Riise, Jha Rajan Kumar, Jones John G, Joseph Vincent, Juhasz Laszlo, Jurczak Michael J, Jurk Diana, Jusic Amela, Kaambre Tuuli, Kaczor Jan Jacek, Kainulainen Heikki, Kampa Rafal Pawel, Kandel Sunil Mani, Kane Daniel A, Kapferer Werner, Kapnick Senta, Kappler Lisa, Karabatsiakis Alexander, Karavaeva Iuliia, Karkucinska-Wieckowska Agnieszka, Kaur Sarbjot, Keijer Jaap, Keller Markus A, Keppner Gloria, Khamoui Andy V, Kidere Dita, Kilbaugh Todd, Kim Hyoung Kyu, Kim Julian KS, Kimoloi Sammy, Klepinin Aleksandr, Klepinina Lyudmila, Klingenspor Martin, Klocker Helmut, Kolassa Iris, Komlodi Timea, Koopman Werner JH, Kopitar-Jerala Natasa, Kowaltowski Alicia J, Kozlov Andrey V, Krajcova Adela, Krako Jakovljevic Nina, Kristal Bruce S, Krycer James R, Kuang Jujiao, Kucera Otto, Kuka Janis, Kwak Hyo Bum, Kwast Kurt E, Kwon Oh Sung, Laasmaa Martin, Labieniec-Watala Magdalena, Lagarrigue Sylviane, Lai Nicola, Lalic Nebojsa M, Land John M, Lane Nick, Laner Verena, Lanza Ian R, Laouafa Sofien, Laranjinha Joao, Larsen Steen, Larsen Terje S, Lavery Gareth G, Lazou Antigone, Ledo Ana Margarida, Lee Hong Kyu, Leeuwenburgh Christiaan, Lehti Maarit, Lemieux Helene, Lenaz Giorgio, Lerfall Joergen, Li Pingan Andy, Li Puma Lance, Liang Liping, Liepins Edgars, Lin Chien-Te, Liu Jiankang, Lopez Garcia Luis Carlos, Lucchinetti Eliana, Ma Tao, Macedo Maria Paula, Machado Ivo F, Maciej Sarah, MacMillan-Crow Lee Ann, Magalhaes Jose, Magri Andrea, Majtnerova Pavlina, Makarova Elina, Makrecka-Kuka Marina, Malik Afshan N, Marcouiller Francois, Marechal Amandine, Markova Michaela, Markovic Ivanka, Martin Daniel S, Martins Ana Dias, Martins Joao D, Maseko Tumisang Edward, Maull Felicia, Mazat Jean-Pierre, McKenna Helen T, McKenzie Matthew, McMillan Duncan GG, McStay Gavin P, Mendham Amy, Menze Michael A, Mercer John R, Merz Tamara, Messina Angela, Meszaros Andras, Methner Axel, Michalak Slawomir, Mila Guasch Maria, Minuzzi Luciele M, Misirkic Marjanovic Maja, Moellering Douglas R, Moisoi Nicoleta, Molina Anthony JA, Montaigne David, Moore Anthony L, Moore Christy, Moreau Kerrie, Moreira Bruno P, Moreno-Sanchez Rafael, Mracek Tomas, Muccini Anna Maria, Munro Daniel, Muntane Jordi, Muntean Danina M, Murray Andrew James, Musiol Eva, Nabben Miranda, Nair K Sreekumaran, Nehlin Jan O, Nemec Michal, Nesci Salvatore, Neufer P Darrell, Neuzil Jiri, Neviere Remi, Newsom Sean A, Norman Jennifer, Nozickova Katerina, Nunes Sara, Nuoffer Jean-Marc, O'Brien Kristin, O'Brien Katie A, O'Gorman Donal, Olgar Yusuf, Oliveira Ben, Oliveira Jorge, Oliveira Marcus F, Oliveira Marcos Tulio, Oliveira Pedro Fontes, Oliveira Paulo J, Olsen Rolf Erik, Orynbayeva Zulfiya, Osiewacz Heinz D, Paez Hector, Pak Youngmi Kim, Pallotta Maria Luigia, Palmeira Carlos, Parajuli Nirmala, Passos Joao F, Passrugger Manuela, Patel Hemal H, Pavlova Nadia, Pavlovic Kasja, Pecina Petr, Pedersen Tina M, Perales Jose Carles, Pereira da Silva Grilo da Silva Filomena, Pereira Rita, Pereira Susana P, Perez Valencia Juan Alberto, Perks Kara L, Pesta Dominik, Petit Patrice X, Pettersen Nitschke Ina Katrine, Pichaud Nicolas, Pichler Irene, Piel Sarah, Pietka Terri A, Pinho Sonia A, Pino Maria F, Pirkmajer Sergej, Place Nicolas, Plangger Mario, Porter Craig, Porter Richard K, Preguica Ines, Prigione Alessandro, Procaccio Vincent, Prochownik Edward V, Prola Alexandre, Pulinilkunnil Thomas, Puskarich Michael A, Puurand Marju, Radenkovic Filip, Ramzan Rabia, Rattan Suresh IS, Reano Simone, Reboredo-Rodriguez Patricia, Rees Bernard B, Renner-Sattler Kathrin, Rial Eduardo, Robinson Matthew M, Roden Michael, Rodrigues Ana Sofia, Rodriguez Enrique, Rodriguez-Enriquez Sara, Roesland Gro Vatne, Rohlena Jakub, Rolo Anabela Pinto, Ropelle Eduardo R, Roshanravan Baback, Rossignol Rodrigue, Rossiter Harry B, Rousar Tomas, Rubelj Ivica, Rybacka-Mossakowska Joanna, Saada Reisch Ann, Safaei Zahra, Salin Karine, Salvadego Desy, Sandi Carmen, Saner Nicholas, Santos Diana, Sanz Alberto, Sardao Vilma, Sarlak Saharnaz, Sazanov Leonid A, Scaife Paula, Scatena Roberto, Schartner Melanie, Scheibye-Knudsen Morten, Schilling Jan M, Schlattner Uwe, Schmitt Sabine, Schneider Gasser Edith Mariane, Schoenfeld Peter, Schots Pauke C, Schulz Rainer, Schwarzer Christoph, Scott Graham R, Selman Colin, Sendon Pamella Marie, Shabalina Irina G, Sharma Pushpa, Sharma Vipin, Shevchuk Igor, Shirazi Reza, Shiroma Jonathan G, Siewiera Karolina, Silber Ariel M, Silva Ana Maria, Sims Carrie A, Singer Dominique, Singh Brijesh Kumar, Skolik Robert A, Smenes Benedikte Therese, Smith James, Soares Felix Alexandre Antunes, Sobotka Ondrej, Sokolova Inna, Solesio Maria E, Soliz Jorge, Sommer Natascha, Sonkar Vijay K, Sova Marina, Sowton Alice P, Sparagna Genevieve C, Sparks Lauren M, Spinazzi Marco, Stankova Pavla, Starr Jonathan, Stary Creed, Stefan Eduard, Stelfa Gundega, Stepto Nigel K, Stevanovic Jelena, Stiban Johnny, Stier Antoine, Stocker Roland, Storder Julie, Sumbalova Zuzana, Suomalainen Anu, Suravajhala Prashanth, Svalbe Baiba, Swerdlow Russell H, Swiniuch Daria, Szabo Ildiko, Szewczyk Adam, Szibor Marten, Tanaka Masashi, Tandler Bernard, Tarnopolsky Mark A, Tausan Daniel, Tavernarakis Nektarios, Teodoro Joao Soeiro, Tepp Kersti, Thakkar Himani, Thapa Maheshwor, Thyfault John P, Tomar Dhanendra, Ton Riccardo, Torp May-Kristin, Torres-Quesada Omar, Towheed Atif, Treberg Jason R, Tretter Laszlo, Trewin Adam J, Trifunovic Aleksandra, Trivigno Catherine, Tronstad Karl Johan, Trougakos Ioannis P, Truu Laura, Tuncay Erkan, Turan Belma, Tyrrell Daniel J, Urban Tomas, Urner Sofia, Valentine Joseph Marco, Van Bergen Nicole J, Van der Ende Miranda, Varricchio Frederick, Vaupel Peter, Vella Joanna, Vendelin Marko, Vercesi Anibal E, Verdaguer Ignasi Bofill, Vernerova Andrea, Victor Victor Manuel, Vieira Ligo Teixeira Camila, Vidimce Josif, Viel Christian, Vieyra Adalberto, Vilks Karlis, Villena Josep A, Vincent Vinnyfred, Vinogradov Andrey D, Viscomi Carlo, Vitorino Rui Miguel Pinheiro, Vlachaki Walker Julia, Vogt Sebastian, Volani Chiara, Volska Kristine, Votion Dominique-Marie, Vujacic-Mirski Ksenija, Wagner Brett A, Ward Marie Louise, Warnsmann Verena, Wasserman David H, Watala Cezary, Wei Yau-Huei, Weinberger Klaus M, Weissig Volkmar, White Sarah Haverty, Whitfield Jamie, Wickert Anika, Wieckowski Mariusz R, Wiesner Rudolf J, Williams Caroline M, Winwood-Smith Hugh, Wohlgemuth Stephanie E, Wohlwend Martin, Wolff Jonci Nikolai, Wrutniak-Cabello Chantal, Wuest Rob CI, Yokota Takashi, Zablocki Krzysztof, Zanon Alessandra, Zanou Nadege, Zaugg Kathrin, Zaugg Michael, Zdrazilova Lucie, Zhang Yong, Zhang Yizhu, Zikova Alena, Zischka Hans, Zorzano Antonio, Zujovic Tijana, Zurmanova Jitka, Zvejniece Liga

Subjects
uncoupling, MitoPedia: Respiratory states, SI - The International System of Units, IUPAC, Coupling control, Mitochondrial preparations, Protonmotive force, Uncoupling, Oxidative phosphorylation, Phosphorylation efficiency, Electron transfer-pathway, LEAK-respiration, Residual oxygen consumption, Normalization of rate, Flow, Flux, Flux control ratio, Mitochondrial marker, Cell count, Oxygen, [SDV]Life Sciences [q-bio], coupling control, protonmotive force, oxidative phosphorylation, mitochondrial respiratory control, State 4, electron transfer, State 2, State 3, Mitochondrial physiology, residual oxygen consumption, flux, normalization, ion leak and slip compensatory state, efficiency, electron transfer system, flow, mitochondrial physiology, oxygen, mitochondrial preparations, proton leak
Abstract

As the knowledge base and importance of mitochondrial physiology to evolution, health and diseaseexpands, the necessity for harmonizing the terminologyconcerning mitochondrial respiratory states and rates has become increasingly apparent. Thechemiosmotic theoryestablishes the mechanism of energy transformationandcoupling in oxidative phosphorylation. Theunifying concept of the protonmotive force providestheframeworkfordeveloping a consistent theoretical foundation ofmitochondrial physiology and bioenergetics.We followthe latest SI guidelines and those of the International Union of Pure and Applied Chemistry(IUPAC)onterminology inphysical chemistry, extended by considerationsofopen systems and thermodynamicsof irreversible processes.Theconcept-driven constructive terminology incorporates the meaning of each quantity and alignsconcepts and symbols withthe nomenclature of classicalbioenergetics. We endeavour to provide a balanced view ofmitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes.Uniform standards for evaluation of respiratory states and rates will ultimatelycontribute BEC 2020.1 doi:10.26124/bec:2020-0001.v1www.bioenergetics-communications.org3of 44to reproducibility between laboratories and thussupport the development of datarepositoriesof mitochondrial respiratory function in species, tissues, and cells.Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery.

Published
2020

18. Procyclic trypanosomes recycle glucose catabolites and TCA cycle intermediates to stimulate growth in the presence of physiological amounts of proline

Author

Villafraz, Oriana, Biran, Marc, Pineda, Erika, Plazolles, Nicolas, Cahoreau, Edern, Ornitz Oliveira Souza, Rodolpho, Thonnus, Magali, Allmann, Stefan, Tetaud, Emmanuel, Rivière, Loïc, Silber, Ariel M., Barrett, Michael P., Zíková, Alena, Boshart, Michael, Portais, Jean-Charles, Bringaud, Frédéric, Microbiologie Fondamentale et Pathogénicité (MFP), Université Bordeaux Segalen - Bordeaux 2-Centre National de la Recherche Scientifique (CNRS), Centre de résonance magnétique des systèmes biologiques (CRMSB), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS), Toulouse Biotechnology Institute (TBI), Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), MetaToul FluxoMet (TBI-MetaToul), MetaboHUB-MetaToul, MetaboHUB-Génopole Toulouse Midi-Pyrénées [Auzeville] (GENOTOUL), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Ecole Nationale Vétérinaire de Toulouse (ENVT), Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-MetaboHUB-Génopole Toulouse Midi-Pyrénées [Auzeville] (GENOTOUL), Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Toulouse Biotechnology Institute (TBI), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universidade de São Paulo = University of São Paulo (USP), Ludwig-Maximilians-Universität München (LMU), University of Glasgow, Institute of Parasitology [České Budějovice] (BIOLOGY CENTRE CAS), Biology Centre of the Czech Academy of Sciences (BIOLOGY CENTRE CAS), Czech Academy of Sciences [Prague] (CAS)-Czech Academy of Sciences [Prague] (CAS), Geroscience and rejuvenation research center (RESTORE), Université de Toulouse (UT)-Université de Toulouse (UT)-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Université de Bordeaux, CNRS, ANR-11-INBS-0010,METABOHUB,Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation(2011), ANR-15-CE15-0025,GLYCONOV,Voies métaboliques glycosomales non glycolytiques: nouvelles fonctions pour le développement et la virulence des trypanosomes(2015), ANR-19-CE15-0004,AdipoTryp,Interactions métaboliques entre les adipocytes et les trypanosomes, un nouveau paradigme pour les trypanosomoses(2019), ANR-11-LABX-0024,ParaFrap,Alliance française contre les maladies parasitaires(2011), Université de Bordeaux (UB), Microbiologie cellulaire et moléculaire et pathogénicité (MCMP), Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Universidade de São Paulo (USP), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-EFS-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), ANR-15-CE15-002501, ANR19-CE15-0004-01, Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Génopole Toulouse Midi-Pyrénées [Auzeville] (GENOTOUL), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Ecole Nationale Vétérinaire de Toulouse (ENVT), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP), Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Génopole Toulouse Midi-Pyrénées [Auzeville] (GENOTOUL), Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Toulouse Biotechnology Institute (TBI), Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université Fédérale Toulouse Midi-Pyrénées-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), VIAUD, Karine, Développement d'une infrastructure française distribuée pour la métabolomique dédiée à l'innovation - - METABOHUB2011 - ANR-11-INBS-0010 - INBS - VALID, Voies métaboliques glycosomales non glycolytiques: nouvelles fonctions pour le développement et la virulence des trypanosomes - - GLYCONOV2015 - ANR-15-CE15-0025 - AAPG2015 - VALID, Interactions métaboliques entre les adipocytes et les trypanosomes, un nouveau paradigme pour les trypanosomoses - - AdipoTryp2019 - ANR-19-CE15-0004 - AAPG2019 - VALID, and Laboratoires d'excellence - Alliance française contre les maladies parasitaires - - ParaFrap2011 - ANR-11-LABX-0024 - LABX - VALID

Subjects
Metabolic Processes, Pyruvate, Trypanosoma, Proline, Tsetse Flies, QH301-705.5, Physiology, Citric Acid Cycle, Trypanosoma brucei brucei, Excretion, Carbohydrates, [SDV.MP.PRO] Life Sciences [q-bio]/Microbiology and Parasitology/Protistology, Biochemistry, [SDV.MP.PRO]Life Sciences [q-bio]/Microbiology and Parasitology/Protistology, Glucose Metabolism, Animals, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, Biology (General), Amino Acids, Protozoans, Alanine, Organic Compounds, Organic Chemistry, Monosaccharides, fungi, Organisms, Chemical Compounds, Biology and Life Sciences, Eukaryota, Proteins, Cyclic Amino Acids, RC581-607, Ketones, Parasitic Protozoans, Insect Vectors, Chemistry, Glucose, Trypanosomiasis, African, Metabolism, Aliphatic Amino Acids, Physical Sciences, Carbohydrate Metabolism, RNA Interference, Immunologic diseases. Allergy, Physiological Processes, Oxidation-Reduction, Acids, [SDV.MP.PAR] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, Research Article
Abstract

Trypanosoma brucei, a protist responsible for human African trypanosomiasis (sleeping sickness), is transmitted by the tsetse fly where the procyclic forms of the parasite develop in the proline-rich (1–2 mM) and glucose-depleted digestive tract. Proline is essential for the midgut colonization of the parasite in the insect vector, however other carbon sources could be available and used to feed its central metabolism. Here we show that procyclic trypanosomes can consume and metabolize metabolic intermediates, including those excreted from glucose catabolism (succinate, alanine and pyruvate), with the exception of acetate, which is the ultimate end-product excreted by the parasite. Among the tested metabolites, tricarboxylic acid (TCA) cycle intermediates (succinate, malate and α-ketoglutarate) stimulated growth of the parasite in the presence of 2 mM proline. The pathways used for their metabolism were mapped by proton-NMR metabolic profiling and phenotypic analyses of thirteen RNAi and/or null mutants affecting central carbon metabolism. We showed that (i) malate is converted to succinate by both the reducing and oxidative branches of the TCA cycle, which demonstrates that procyclic trypanosomes can use the full TCA cycle, (ii) the enormous rate of α-ketoglutarate consumption (15-times higher than glucose) is possible thanks to the balanced production and consumption of NADH at the substrate level and (iii) α-ketoglutarate is toxic for trypanosomes if not appropriately metabolized as observed for an α-ketoglutarate dehydrogenase null mutant. In addition, epimastigotes produced from procyclics upon overexpression of RBP6 showed a growth defect in the presence of 2 mM proline, which is rescued by α-ketoglutarate, suggesting that physiological amounts of proline are not sufficient per se for the development of trypanosomes in the fly. In conclusion, these data show that trypanosomes can metabolize multiple metabolites, in addition to proline, which allows them to confront challenging environments in the fly., Author summary In the midgut of its insect vector, trypanosomes rely on proline to feed their energy metabolism. However, the availability of other potential carbon sources that can be used by the parasite is currently unknown. Here we show that tricarboxylic acid (TCA) cycle intermediates, i.e. succinate, malate and α-ketoglutarate, stimulate growth of procyclic trypanosomes incubated in a medium containing 2 mM proline, which is in the range of the amounts measured in the midgut of the fly. Some of these additional carbon sources are needed for the development of epimastigotes, which differentiate from procyclics in the midgut of the fly, since their growth defect observed in the presence of 2 mM proline is rescued by addition of α-ketoglutarate. In addition, we have implemented new approaches to study a poorly explored branch of the TCA cycle converting malate to α-ketoglutarate, which was previously described as non-functional in the parasite, regardless of the glucose levels available. The discovery of this branch reveals that a full TCA cycle can operate in procyclic trypanosomes. Our data broaden the metabolic potential of trypanosomes and pave the way for a better understanding of the parasite’s metabolism in various organ systems of the tsetse fly, where it develops.

Published
2021

23. Fly stage trypanosomes recycle glucose catabolites and TCA cycle intermediates to stimulate growth in near physiological conditions

Author

Villafraz, Oriana, primary, Biran, Marc, additional, Pineda, Erika, additional, Plazolles, Nicolas, additional, Cahoreau, Edern, additional, Souza, Rodolpho Ornitz Oliveira, additional, Thonnus, Magali, additional, Allmann, Stefan, additional, Tetaud, Emmanuel, additional, Rivière, Loïc, additional, Silber, Ariel M., additional, Barrett, Michael P., additional, Zíková, Alena, additional, Boshart, Michael, additional, Portais, Jean-Charles, additional, and Bringaud, Frédéric, additional

Published
2020
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24. Targeting L-Proline uptake as new strategy for anti-chagas drug development

Author

Fargnoli, Lucía, Panozzo Zénere, Esteban Andrés, Pagura, Lucas, Barisón, María Julia, Cricco, Julia Alejandra, Silber, Ariel M., and Labadie, Guillermo Roberto

Subjects
Cytotoxicity, Proline Uptake, Trypanosoma cruzi Epimastigotes, Chagas Disease, Target Validation
Abstract

L-Proline is an important amino acid for the pathogenic protists belonging to Trypanosoma and Leishmania genera. In Trypanosoma cruzi, the etiological agent of Chagas disease, this amino acid is involved in fundamental biological processes such as ATP production, differentiation of the insect and intracellular stages, the host cell infection and the resistance to a variety of stresses. In this study, we explore the L-Proline uptake as a chemotherapeutic target for T. cruzi. Novel inhibitors have been proposed containing the amino acid with a linker and a variable region able to block the transporter. A series of sixteen 1,2,3-triazolyl-proline derivatives have been prepared for in vitro screening against T. cruzi epimastigotes and proline uptake assays. We successfully obtained inhibitors that interfere with the amino acid internalization, which validated our design targeting the metabolite’s transport. The presented structures are one of few examples of amino acid transporter inhibitors. The unprecedent application of this strategy on the development of new chemotherapy against Chagas disease, opens a new horizon on antiparasitic drug development against parasitic diseases and other pathologies. Para citar este articulo: Fargnoli L, Panozzo-Zénere EA, Pagura L, Barisón MJ, Cricco JA, Silber AM and Labadie GR (2020) Targeting L-Proline Uptake as New Strategy for Anti-chagas Drug Development. Front. Chem. 8:696. doi: 10.3389/fchem.2020.00696 Fil: Fargnoli, Lucía. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR -CONICET); Argentina. Fil: Panozzo Zénere, Esteban Andrés. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR -CONICET); Argentina. Fil: Pagura, Lucas. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario (IBR -CONICET); Argentina. Fil: Barisón, María Julia. Universidade de São Paulo. Instituto de Ciências Biomédicas. Departamento de Parasitologia. Laboratory of Biochemistry of Tryps (LaBTryps); Brazil. Fil: Cricco, Julia Alejandra. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Biología Molecular y Celular de Rosario (IBR -CONICET); Argentina. Fil: Silber, Ariel M. Universidade de São Paulo. Instituto de Ciências Biomédicas. Departamento de Parasitologia. Laboratory of Biochemistry of Tryps (LaBTryps); Brazil. Fil: Labadie, Guillermo Roberto. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Instituto de Química Rosario (IQUIR -CONICET); Argentina. Fil: Labadie, Guillermo Roberto. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Química Orgánica; Argentina.

Published
2020

30. Mitochondrial respiratory states and rates

Author

Gnaiger, Erich, Aasander Frostner, Eleonor, Abdul Karim, Norwahidah, Abumrad, Nada A, Acuna-Castroviejo, Dario, Adiele, Reginald C, Ahn, Bumsoo, Ali, Sameh S, Alton, Lesley, Alves, Marco G, Amati, Francesca, Amoedo, Nivea Dias, Andreadou, Ioanna, Arago, Marc, Aral, Cenk, Arandarcikaite, Odeta, Armand, Anne-Sophie, Arnould, Thierry, Avram, Vlad Florian, Bailey, Damian M, Bajpeyi, Sudip, Bajzikova, Martina, Bakker, Barbara M, Barlow, Jonathan, Bastos Sant'Anna Silva, Ana Carolina, Batterson, Philip, Battino, Maurizio, Bazil, Jason, Beard, Daniel A, Bednarczyk, Piotr, Bello, Fiona, Ben-Shachar, Dorit, Bergdahl, Andreas, Berge, Rolf K, Bergmeister, Lisa, Bernardi, Paolo, Berridge, Michael V, Bettinazzi, Stefano, Bishop, David, Blier, Pierre U, Blindheim, Dan Filip, Boardman, Neoma T, Boetker, Hans Erik, Borchard, Sabine, Boros, Mihaly, Borsheim, Elisabet, Borutaite, Vilma, Botella, Javier, Bouillaud, Frederic, Bouitbir, Jamal, Boushel, Robert C, Bovard, Josh, Breton, Sophie, Brown, David A, Brown, Guy C, Brown, Robert A, Brozinick, Joseph T, Buettner, Garry R, Burtscher, Johannes, Calabria, Elisa, Calbet, Jose A, Calzia, Enrico, Cannon, Daniel T, Cano Sanchez, Maria, Canto Alvarez, Carlos, Cardoso, Luiza Helena Daltro, Carvalho, Eugenia, Casado Pinna, Marta, Cassar, Samantha, Cassina, Adriana M, Castelo, Maria P, Gonzalez-Franquesa, A, Cavalcanti-de-Albuquerque, Joao Paulo, Cervinkova, Zuzana, Chabi, Beatrice, Chakrabarti, Lisa, Chakrabarti, Sasanka, Chaurasia, Bhagirath, Chen, Qi, Chicco, Adam J, Chinopoulos, Christos, Chowdhury, Subir K, Cizmarova, Beata, Clementi, Emilio, Coen, Paul M, Cohen, Bruce H, Coker, Robert H, Collin, Anne, Crisostomo, Luis, Dahdah, Norma, Dalgaard, Louise T, Dambrova, Maija, Danhelovska, Tereza, Darveau, Charles A, Das, Anibh M, Dash, Ranjan K, Davidova, Eliska, Davis, Michael S, De Goede, Paul, De Palma, Clara, Dembinska-Kiec, Aldona, Detraux, Damien, Devaux, Yvan, Di Marcello, Marco, Dias, Tania R, Distefano, Giovanna, Doermann, Niklas, Doerrier, Carolina, Dong, Lan-Feng, Donnelly, Chris, Drahota, Zdenek, Duarte, Filipe Valente, Dubouchaud, Herve, Duchen, Michael R, Dumas, Jean-Francois, Durham, William J, Dymkowska, Dorota, Dyrstad, Sissel E, Dyson, Alex, Dzialowski, Edward M, Eaton, Simon, Ehinger, Johannes, Elmer, Eskil, Endlicher, Rene, Engin, Ayse B, Escames, Germaine, Ezrova, Zuzana, Falk, Marni Joy, Fell, David A, Ferdinandy, Peter, Ferko, Miroslav, Ferreira, Julio Cesar Batista, Ferreira, Rita, Ferri, Alessandra, Fessel, Joshua P, Filipovska, Aleksandra, Fisar, Zdenek, Fischer, Christine, Fischer, Michael, Fisher, Gordon, Fisher, Joshua J, Ford, Ellen, Fornaro, Mara, Galina, Antonio, Galkin, Alexander, Gallee, Leon, Galli, Gina L, Gama Perez, Pau, Gan, Zhenji, Ganetzky, Rebecca, Garcia-Rivas, Gerardo, Garcia-Roves, Pablo Miguel, Garcia-Souza, Luiz Felipe, Garipi, Enis, Garlid, Keith D, Garrabou, Gloria, Garten, Antje, Gastaldelli, Amalia, Gayen, Jiaur, Genders, Amanda J, Genova, Maria Luisa, Giovarelli, Matteo, Goncalo Teixeira da Silva, Rui, Goncalves, Debora Farina, Gonzalez-Armenta, Jenny L, Gonzalez-Freire, Marta, Gonzalo, Hugo, Goodpaster, Bret H, Gorr, Thomas A, Gourlay, Campbell W, Granata, Cesare, Grefte, Sander, Guarch, Meritxell Espino, Gueguen, Naig, Gumeni, Sentiljana, Haas, Clarissa B, Haavik, Jan, Haendeler, Judith, Haider, Markus, Hamann, Andrea, Han, Jin, Han, Woo Hyun, Hancock, Chad R, Hand, Steven C, Handl, Jiri, Hargreaves, Ian P, Harper, Mary Ellen, Harrison, David K, Hassan, Hazirah, Hausenloy, Derek J, Heales, Simon JR, Heiestad, Christina, Hellgren, Kim T, Hepple, Russell T, Hernansanz-Agustin, Pablo, Hewakapuge, Sudinna, Hickey, Anthony J, Ho, Dieu Hien, Hoehn, Kyle L, Hoel, Frederik, Holland, Olivia J, Holloway, Graham P, Hoppel, Charles L, Hoppel, Florian, Houstek, Josef, Huete-Ortega, Maria, Hyrossova, Petra, Iglesias-Gonzalez, Javier, Irving, Brian A, Isola, Raffaella, Iyer, Shilpa, Jackson, Christophe B, Jadiya, Pooja, Jana, Prado Fabian, Jang, David H, Jang, Young C, Janowska, Joanna, Jansen, Kirsten, Jansen-Duerr, Pidder, Jansone, Baiba, Jarmuszkiewicz, Wieslawa, Jaskiewicz, Anna, Jedlicka, Jan, Jespersen, Nichlas R, Jha, Rajan K, Jurczak, Michael J, Jurk, Diana, Kaambre, Tuuli, Kaczor, Jan J, Kainulainen, Heikki, Kampa, Rafal Pawel, Kandel, Sunil M, Kane, Daniel A, Kapferer, Werner, Kappler, Lisa, Karabatsiakis, Alexander, Karkucinska-Wieckowska, Agnieszka, Kaur, Sarbjot, Keijer, Jaap, Keller, Markus A, Keppner, Gloria, Khamoui, Andy V, Kidere, Dita, Kilbaugh, Todd, Kim, Hyoung Kyu, Kim, Julian KS, Klepinin, Aleksandr, Klepinina, Lyudmila, Klingenspor, Martin, Klocker, Helmut, Komlódi, Timea, Koopman, Werner JH, Kopitar-Jerala, Natasa, Kowaltowski, Alicia J, Kozlov, Andrey V, Krajcova, Adela, Krako Jakovljevic, Nina, Kristal, Bruce S, Krycer, Jamer R, Kuang, Jujiao, Kucera, Otto, Kuka, Janis, Kwak, Hyo Bum, Kwast, Kurt, Laasmaa, Martin, Labieniec-Watala, Magdalena, Lai, Nicola, Land, John M, Lane, Nick, Laner, Verena, Lanza, Ian R, Larsen, Terje S, Lavery, Gareth G, Lazou, Antigone, Lee, Hong Kyu, Leeuwenburgh, Christiaan, Lehti, Maarit, Lemieux, Helene, Lenaz, Giorgio, Lerfall, Jorgen, Li, Pingan A, Li Puma, Lance, Liepins, Edgars, Lionett, Sofie, Liu, Jiankang, Lopez, Luis C, Lucchinetti, Eliana, Ma, Tao, Macedo, Maria P, Maciej, Sarah, MacMillan-Crow, Lee Ann, Majtnerova, Pavlina, Makarova, Elina, Makrecka-Kuka, Marina, Malik, Afshan N, Markova, Michaela, Martin, Daniel S, Martins, Ana Dias, Martins, Joao D, Maseko, Tumisang Edward, Maull, Felicia, Mazat, Jean Pierre, McKenna, Helen T, McKenzie, Matthew, Menze, Michael A, Merz, Tamara, Meszaros, Andras T, Methner, Axel, Michalak, Slawomir, Moellering, Douglas R, Moisoi, Nicoleta, Molina, Anthony JA, Montaigne, David, Moore, Anthony L, Moreau, Kerrie, Moreira, Bruno P, Moreno-Sanchez, Rafael, Mracek, Tomas, Muccini, Anna Maria, Muntane, Jordi, Muntean, Danina M, Murray, Andrew J, Musiol, Eva, Nabben, Miranda, Nair, K Sreekumaran, Nehlin, Jan O, Nemec, Michal, Neufer, P Darrell, Neuzil, Jiri, Neviere, Remi, Newsom, Sean A., Nozickova, Katerina, O'Brien, Katie A, O'Gorman, Donal, Olgar, Yusuf, Oliveira, Ben, Oliveira, Marcus F, Oliveira, Marcos Tulio, Oliveira, Pedro F, Oliveira, Paulo J, Orynbayeva, Zulfiya, Osiewacz, Heinz D, Pak, Youngmi K, Pallotta, Maria L, Palmeira, Carlos M, Parajuli, Nirmala, Passos, Joao F, Passrugger, Manuela, Patel, Hemal H, Pavlova, Nadia, Pecina, Petr, Pedersen, Tina M, Pereira da Silva Grilo da Silva, Filomena, Perez Valencia, Juan A, Perks, Kara L, Pesta, Dominik, Petit, Patrice X, Pettersen, Ina Katrine Nitschke, Pichaud, Nicolas, Pichler, Irene, Piel, Sarah, Pietka, Terri A, Pino, Maria F, Pirkmajer, Sergej, Plangger, Mario, Porter, Craig, Porter, Richard K, Procaccio, Vincent, Prochownik, Edward V, Prola, Alexandre, Pulinilkunnil, Thomas, Puskarich, Michael A, Puurand, Marju, Radenkovic, Filip, Ramzan, Rabia, Rattan, Suresh IS, Reboredo, Patricia, Renner-Sattler, Kathrin, Rial, Eduardo, Robinson, Matthew M, Roden, Michael, Rodriguez, Enrique, Rodriguez-Enriquez, Sara, Roesland, Gro Vatne, Rohlena, Jakub, Rolo, Anabela Pinto, Ropelle, Eduardo R, Rossignol, Rodrigue, Rossiter, Harry B, Rubelj, Ivica, Rybacka-Mossakowska, Joanna, Saada, Ann, Safaei, Zahra, Sarlak, S, Salin, Karine, Salvadego, Desy, Sandi, Carmen, Saner, Nicholas, Sanz, Alberto, Sazanov, Leonid A, Scatena, Roberto, Schartner, Melanie, Scheibye-Knudsen, Morten, Schilling, Jan M, Schlattner, Uwe, Schoenfeld, Peter, Schots, Pauke C, Schulz, Rainer, Schwarzer, Christoph, Scott, Graham R, Selman, Colin, Shabalina, Irina G, Sharma, Pushpa, Sharma, Vipin, Shevchuk, Igor, Shirazi, Reza, Shiroma, Jonathan G, Siewiera, Karolina, Silber, Ariel M, Silva, Ana Maria, Sims, Carrie A, Singer, Dominique, Singh, Brijesh Kumar, Skolik, Robert A, Smenes, Benedikte Therese, Smith, James, Soares, Félix Alexandre Antunes, Sobotka, Ondrej, Sokolova, Inna, Sonkar, Vijay K, Sowton, Alice P, Sparagna, Genevieve C, Sparks, Lauren M, Spinazzi, Marco, Stankova, Pavla, Starr, Jonathan, Stary, Creed, Stelfa, Gundega, Stepto, Nigel K, Stiban, Johnny, Stier, Antoine, Stocker, Roland, Storder, Julie, Sumbalova, Zuzana, Suomalainen, Wartiovaara Anu, Suravajhala, Prashanth, Svalbe, Baiba, Swerdlow, Russel H, Swiniuch, Daria, Szabo, Ildiko, Szewczyk, Adam, Szibor, Marten, Tanaka, Masashi, Tandler, Bernard, Tarnopolsky, Mark A, Tausan, Daniel, Tavernarakis, Nektarios, Tepp, Kersti, Thakkar, Himani, Thapa, Maheshwo, Thyfault, John P, Tomar, Dhanendra, Ton, Riccardo, Torp, May-Kristin, Towheed, Atif, Tretter, Laszlo, Trewin, Adam J, Trifunovic, Aleksandra, Trivigno, Catherine, Tronstad, Karl Johan, Trougakos, Ioannis P, Truu, Laura, Tuncay, Erkan, Turan, Belma, Tyrrell, Daniel J, Urban, Tomas, Valentine, Joseph Marco, Van Bergen, Nicole J, Van Hove, Johan, Varricchio, Frederick, Vella, Joanna, Vendelin, Marko, Vercesi, Anibal E, Victor, Victor Manuel, Vieira Ligo Teixeira, Camila, Vidimce, Josif, Viel, Christian, Vieyra, Adalberto, Vilks, Karlis, Villena, Joseph A, Vincent, Vinnyfred, Vinogradov, Andrey D, Viscomi, Carlo, Vitorino, Rui Miguel Pinheiro, Vogt, Sebastian, Volani, Chiara, Volska, Kristine, Votion, Dominique-Marie, Vujacic-Mirski, Ksenija, Wagner, Brett A, Ward, Marie Louise, Warnsmann, Verena, Wasserman, David H, Watala, Cezary, Wei, Yau-Huei, Whitfield, Jamie, Wickert, Anika, Wieckowski, Mariusz R, Wiesner, Rudolf J, Williams, Caroline M, Winwood-Smith, Hugh, Wohlgemuth, Stephanie E, Wohlwend, Martin, Wolff, Jonci Nikolai, Wrutniak-Cabello, Chantal, Wuest, Rob C I, Yokota, Takashi, Zablocki, Krzysztof, Zanon, Alessandra, Zanou, Nadege, Zaugg, Kathrin, Zaugg, Michael, Zdrazilova, Lucie, Zhang, Yong, Zhang, Yi Zhu, Zikova, Alena, Zischka, Hans, Zorzano, Antonio, Zvejniece, Liga, Lagarrigue, Sylviane, Munro, Daniel, Pereira, Susana, Laranjinha, Joäo, Almeida, Angeles, Diederich, M, Hecker, M, Jusic, A, Prigione, A, Sommer, N, Weissig, V, Abdel-Rahman, EA, Sova, M, Amorim, R, Beleza, J, Bravo-Sagua, R, Celen, MC, Coxito, P, Crispim, M, Dias, C, Evinova, A, Fuertes Agudo, M, Gao, Y, Garcia, G, Goikoetxea Usandizaga, N, Grilo, L, Minuzzi, LM, Hachmo, Y, Hajrulahovic, A, Hatokova, Z, Henrique, A, Holzner, L, Kimoloi, S, Ledo, AM, Machado, IF, Magalhaes, J, Magri, A, Nunes, S, Oliveira, J, Pinho, SA, Preguica, I, Reano, S, Rodrigues, AS, Santos, D, Sardao, V, Stevanovic, J, Teodoro, J, Van der Ende, M, Zujovic, T, Djafarzadeh, S, Schneider Gasser, EM, Jaspers, RT, Arias-Reyes, C, Bairam, A, Laouafa, S, Marcouiller, F, Soliz, J, Glatz, J, Antunes, D, Bach de Courtade, SM, Bardal, T, Di Paola, FJ, Fulton, M, Grams, B, Joseph, V, Kwon, OS, Liang, L, Mila Guasch, M, Moore, C, Norman, J, O'Brien, K, Olsen, RE, Paez, H, Rees, BB, Roshanravan, B, Scaife, P, Sendon, PM, Vlachaki Walker, J, Crossland, H, Jones, JG, Bento, G, Perales, JC, and Aragones Lopez, J

Subjects
uncoupling, Mitochondrial respiratory control, coupling control, protonmotive force, oxidative phosphorylation, mitochondrial respiratory control, NARILIS, ET [electron transfer], electron transfer, residual oxygen consumption, flux, normalization, efficiency, flow, oxygen, mitochondrial preparations, proton leak
Abstract

As the knowledge base and importance of mitochondrial physiology to human health expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow guidelines of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of databases of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery.

Published
2019
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35. Proline metabolism is essential for trypanosoma brucei brucei survival in the tsetse vector

Author

Mantilla, Brian S., Marchese, Letícia, Casas-Sánchez, Aitor, Dyer, Naomi A., Ejeh, Nicholas, Biran, Marc, Bringaud, Frédéric, Lehane, Michael J., Acosta-Serrano, Alvaro, Silber, Ariel M., Centre de résonance magnétique des systèmes biologiques (CRMSB), Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB), and Liverpool School of Tropical Medicine (LSTM)

Subjects
Magnetic Resonance Spectroscopy, Cell Separation, Biochemistry, Glucose Metabolism, Medicine and Health Sciences, Amino Acids, Biology (General), Energy-Producing Organelles, ComputingMilieux_MISCELLANEOUS, Alanine, Organic Compounds, Monosaccharides, Neurochemistry, Neurotransmitters, Flow Cytometry, Adaptation, Physiological, Mitochondria, Chemistry, Gene Knockdown Techniques, Physical Sciences, Carbohydrate Metabolism, Cellular Structures and Organelles, Glutamate, Research Article, Proline, Tsetse Flies, QH301-705.5, Blotting, Western, Trypanosoma brucei brucei, Carbohydrates, Bioenergetics, Host-Parasite Interactions, Trypanosomiasis, Parasitic Diseases, Animals, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, Organic Chemistry, fungi, Chemical Compounds, Biology and Life Sciences, Proteins, Cyclic Amino Acids, Cell Biology, RC581-607, Insect Vectors, Amino Acid Metabolism, Metabolism, Glucose, Aliphatic Amino Acids, Microscopy, Fluorescence, Immunologic diseases. Allergy, Neuroscience
Abstract

Adaptation to different nutritional environments is essential for life cycle completion by all Trypanosoma brucei sub-species. In the tsetse fly vector, L-proline is among the most abundant amino acids and is mainly used by the fly for lactation and to fuel flight muscle. The procyclic (insect) stage of T. b. brucei uses L-proline as its main carbon source, relying on an efficient catabolic pathway to convert it to glutamate, and then to succinate, acetate and alanine as the main secreted end products. Here we investigated the essentiality of an undisrupted proline catabolic pathway in T. b. brucei by studying mitochondrial Δ1-pyrroline-5-carboxylate dehydrogenase (TbP5CDH), which catalyzes the irreversible conversion of gamma-glutamate semialdehyde (γGS) into L-glutamate and NADH. In addition, we provided evidence for the absence of a functional proline biosynthetic pathway. TbP5CDH expression is developmentally regulated in the insect stages of the parasite, but absent in bloodstream forms grown in vitro. RNAi down-regulation of TbP5CDH severely affected the growth of procyclic trypanosomes in vitro in the absence of glucose, and altered the metabolic flux when proline was the sole carbon source. Furthermore, TbP5CDH knocked-down cells exhibited alterations in the mitochondrial inner membrane potential (ΔΨm), respiratory control ratio and ATP production. Also, changes in the proline-glutamate oxidative capacity slightly affected the surface expression of the major surface glycoprotein EP-procyclin. In the tsetse, TbP5CDH knocked-down cells were impaired and thus unable to colonize the fly’s midgut, probably due to the lack of glucose between bloodmeals. Altogether, our data show that the regulated expression of the proline metabolism pathway in T. b. brucei allows this parasite to adapt to the nutritional environment of the tsetse midgut., Author Summary Bloodsucking insects play a major role in the transmission of pathogens that cause major tropical diseases. Their capacity to transmit these diseases is directly associated with the availability and turnover of energy sources. Proline is the main readily-mobilizable fuel of the tsetse fly, which is the vector of sub-species of Trypanosoma brucei parasites that cause human sleeping sickness and are partly responsible for animal trypanosomiasis (Nagana disease) in sub-Saharan Africa. Once trypanosomes are ingested from an infected host by the tsetse, the parasites encounter an environment that is poor in glucose (as it is rapidly metabolized by the fly) but rich in proline, which then becomes the main carbon source once the parasite differentiates into the first insect (procyclic) stage. In this work, we provide evidence on the essentiality of T. b. brucei proline catabolism for procyclic survival within the tsetse’s digestive tract, as this organism is unable to synthesize this amino acid and strictly depends on the proline provided by the fly. We also show that parasites deficient in TbP5CDH, a mitochondrial enzyme involved in the proline degradative pathway, failed to proliferate in vitro, showed a diminished respiratory capacity, and showed compromised maintenance of energy levels and metabolic flux when proline was offered as the main carbon source. Thus, the integrity of the trypanosome proline degradation pathway is needed to maintain essential functions related to parasite bioenergetics, replication and infectivity within the insect host. Our observations answer a long-standing question on the role of parasite proline metabolism in tsetse-trypanosome interplay.

Published
2017

42. The Trypanosoma cruzi proteins TcCox10 and TcCox15 catalyze the formation of heme A in the yeast Saccharomyces cerevisiae

Author

Buchensky, Celeste, Almirón, Paula, Suarez Mantilla, Brian, Silber, Ariel M., and Cricco, Julia Alejandra

Subjects
Chagas' disease, Trypanosoma cruzi, cytochrome c oxidase, mitochondrial proteins, parasitic diseases, heme A
Abstract

Trypanosoma cruzi, the etiologic agent for Chagas' disease, has requirements for several cofactors, one of which is heme. Because this organism is unable to synthesize heme, which serves as a prosthetic group for several heme proteins (including the respiratory chain complexes), it therefore must be acquired from the environment. Considering this deficiency, it is an open question as to how heme A, the essential cofactor for eukaryotic CcO enzymes, is acquired by this parasite. In the present work, we provide evidence for the presence and functionality of genes coding for heme O and heme A synthases, which catalyze the synthesis of heme O and its conversion into heme A, respectively. The functions of these T. cruzi proteins were evaluated using yeast complementation assays, and the mRNA levels of their respective genes were analyzed at the different T. cruzi life stages. It was observed that the amount of mRNA coding for these proteins changes during the parasite life cycle, suggesting that this variation could reflect different respiratory requirements in the different parasite life stages. Fil: Buchensky, Celeste. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Química Biológica. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina. Fil: Almirón, Paula. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Química Biológica. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina. Fil: Suarez Mantilla, Brian. Universidade de São Paulo. Instituto de Ciências Biomédicas. Departamento de Parasitologia; Brazil. Fil: Silber, Ariel M. Universidade de São Paulo. Instituto de Ciências Biomédicas. Departamento de Parasitologia; Brazil. Fil: Cricco, Julia Alejandra. Universidad Nacional de Rosario. Facultad de Ciencias Bioquímicas y Farmacéuticas. Departamento de Química Biológica. Instituto de Biología Molecular y Celular de Rosario (IBR-CONICET); Argentina.

Published
2010

43. Evaluation of three DNA binders as Leishmanicidal and trypanocidal drugs

Author

Ferraz, J.D., Rocha, S.C., Stik Lange, I.E., Stolić, Ivana, Glavaš-Obrovac, Ljubica, Bajić, Miroslav, and Silber, Ariel M.

Subjects
Trypanosoma, Leishmania, bisbenzimidazoles, amidines, parasitic diseases
Abstract

In the present work we evaluate the trypanocidaland leichmanicidal activity of three novel bisbenzimidazoles which are able to interact within DNA grooves. These DNA binders were previously evaluated against Trypanosoma cruzi showing a promising parasiticidal activity.

Published
2009

44. Evaluation of the Anti-Trypanosoma cruzi Activity of three Synthetic DNA Binders

Author

Magdaleno, Anahi, Stolić, Ivana, Bajić, Miroslav, Glavaš-Obrovac, Ljubica, and Silber, Ariel, M

Subjects
Trypanosoma cruzi, Chagas' disease, benzimidazoles, amidines
Abstract

Trypanosoma cruzi shows a complex life cycle, characterized by several forms both in the insect vector and in mammalian host. The therapy against this infection relies mainly on two therapeutic drugs, with low efficiency and undesirable side effects. Due to these facts the search of new leader compounds with trypanocidal activity is considered as a relevant goal. In the present work we studied three synthetic DNA binders

Published
2008

47. Identification of two molecules of Trypanosoma cruzi onvolved in host cell invasion

Author

Silber, Ariel M. and Marcipar, Alberto J.

Abstract

El Trypanosoma cruzi, agente etiológico de la enfermedad de Chagas, es unparásito con un complejo ciclo de vida que transcurre entre un insecto vector ymamíferos entre ellos el hombre. Durante este ciclo, el parásito alterna entre formasinfectivas y no infectivas, y entre formas replicativas y no replicativas. Las únicas formasreplicativas en el huésped mamífero son formas intracelulares, por lo tanto, para poderestablecer la infección el parásito debe obligatoriamente internalizarse en las células delhuésped y diferenciarse a formas replicativas. En el presente trabajo se caracterizaronparcialmente dos moléculas parasitarias y se demostró su participación en el proceso deintemalización. Estas moléculas son una glicoproteina símil lectina de 67 kDa galactosaespecífica y una proteína flagelar ligante de calcio de la familia de las calflaginas. Sepropone además un sistema que permite estudiar las interacciones entre receptores yantirreceptores que ocurren entre el parásito y las células humanas. Trypanosoma cruzi, the aethiological agent for Chagas’ disease, is a parasitewith a complex life cycle between an insect vector and mammals (man among them). During this cycle, parasites alternate among infective and non-infective, and replicativeand non-replicative forms. The only replicative forms in the mammalian host are theintracellular stages, so the parasite must internalize into the host cells in order toestablish the infection. In the present work, two parasite molecules were partiallycharacterized and a role for them in parasite internalization was demonstrated. Thesemolecules consisted of a 67 kDa galactose specific lectin like glycoprotein and a flagellarcalcium binding protein belonging to the calflagin family. Besides, a system to studyreceptors-couterreceptors interaction among parasites and human cells is proposed. Fil: Silber, Ariel M.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.

Published
2000

48. Biochemical Characterization of Branched Chain Amino Acids Uptake in Trypanosoma cruzi.

Author

Manchola, Nubia C., Rapado, Ludmila N., Barisón, María J., and Silber, Ariel M.

Subjects
TRYPANOSOMA cruzi, CHAGAS' disease, AMINO acid transport, ISOLEUCINE, VALINE
Abstract

Trypanosoma cruzi is the etiological agent of Chagas disease. During its life cycle, it alternates among vertebrate and invertebrate hosts. Metabolic flexibility is a main biochemical characteristic of this parasite, which is able to obtain energy by oxidizing a variety of nutrients that can be transported from the extracellular medium. Moreover, several of these metabolites, more specifically amino acids, have a variety of functions beyond being sources of energy. Branched chain amino acids (BCAA), beyond their role in ATP production, are involved in sterol biosynthesis; for example, leucine is involved as a negative regulator of the parasite differentiation process occurring in the insect midgut. BCAA are essential metabolites in most nonphotosynthetic eukaryotes, including trypanosomes. In view of this, the metabolism of BCAA in T. cruzi depends mainly on their transport into the cell. In this work, we kinetically characterized the BCAA transport in T. cruzi epimastigotes. Our data point to BCAA as being transported by a single saturable transport system able to recognize leucine, isoleucine and valine. In view of this, we used leucine to further characterize this system. The transport increased linearly with temperature from 10 to 45 °C, allowing the calculation of an activation energy of 51.30 kJ/mol. Leucine uptake was an active process depending on ATP production and a H+ gradient, but not on a Na+ or K+ gradient at the cytoplasmic membrane level. [ABSTRACT FROM AUTHOR]

Published
2016
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50. CD4 + CD25 + Foxp3 + Regulatory T Cells, Dendritic Cells, and Circulating Cytokines in Uncomplicated Malaria: Do Different Parasite Species Elicit Similar Host Responses?

Author

Gonçalves, Raquel M., primary, Salmazi, Karina C., additional, Santos, Bianca A. N., additional, Bastos, Melissa S., additional, Rocha, Sandra C., additional, Boscardin, Sílvia B., additional, Silber, Ariel M., additional, Kallás, Esper G., additional, Ferreira, Marcelo U., additional, and Scopel, Kézia K. G., additional

Published
2010
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