4 results on '"Scherezade Jiménez"'
Search Results
2. CD229 (Ly9) a Novel Biomarker for B-Cell Malignancies and Multiple Myeloma
- Author
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Giovanna Roncador, Joan Puñet-Ortiz, Lorena Maestre, Luis Gerardo Rodríguez-Lobato, Scherezade Jiménez, Ana Isabel Reyes-García, Álvaro García-González, Juan F. García, Miguel Ángel Piris, Santiago Montes-Moreno, Manuel Rodríguez-Justo, Mari-Pau Mena, Carlos Fernández de Larrea, and Pablo Engel
- Subjects
leukemia ,lymphoma ,myeloma ,B cells ,CD229 ,Ly9 ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
CD229 (Ly9) homophilic receptor, which belongs to the SLAM family of cell-surface molecules, is predominantly expressed on B and T cells. It acts as a signaling molecule, regulating lymphocyte homoeostasis and activation. Studies of CD229 function indicate that this receptor functions as a regulator of the development of marginal-zone B cells and other innate-like T and B lymphocytes. The expression on leukemias and lymphomas remains poorly understood due to the lack of CD229 monoclonal antibodies (mAb) for immunohistochemistry application (IHC). In this study, we used a new mAb against the cytoplasmic region of CD229 to study the expression of CD229 on normal tissues and B-cell malignancies, including multiple myeloma (MM), using tissue microarrays. We showed CD229 to be restricted to hematopoietic cells. It was strongly expressed in all cases of MM and in most marginal-zone lymphomas (MZL). Moderate CD229 expression was also found in chronic lymphocyte leukemia (CLL), follicular (FL), classic mantle-cell (MCL) and diffuse large B-cell lymphoma. Given the high expression on myeloma cells, we also analyzed for the presence of soluble CD229 in the sera of these patients. Serum levels of soluble CD229 (sCD229) at the time of diagnosis in MM patients could be useful as a prognostic biomarker. In conclusion, our results indicate that CD229 represents not only a useful biomarker but also an attractive therapeutic target.
- Published
- 2022
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3. Analysis of Telomere Maintenance Related Genes Reveals NOP10 as a New Metastatic-Risk Marker in Pheochromocytoma/Paraganglioma
- Author
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María Monteagudo, Paula Martínez, Luis J. Leandro-García, Ángel M. Martínez-Montes, Bruna Calsina, Marta Pulgarín-Alfaro, Alberto Díaz-Talavera, Sara Mellid, Rocío Letón, Eduardo Gil, Manuel Pérez-Martínez, Diego Megías, Raúl Torres-Ruiz, Sandra Rodriguez-Perales, Patricia González, Eduardo Caleiras, Scherezade Jiménez-Villa, Giovanna Roncador, Cristina Álvarez-Escolá, Rita M. Regojo, María Calatayud, Sonsoles Guadalix, Maria Currás-Freixes, Elena Rapizzi, Letizia Canu, Svenja Nölting, Hanna Remde, Martin Fassnacht, Nicole Bechmann, Graeme Eisenhofer, Massimo Mannelli, Felix Beuschlein, Marcus Quinkler, Cristina Rodríguez-Antona, Alberto Cascón, María A. Blasco, Cristina Montero-Conde, and Mercedes Robledo
- Subjects
pheochromocytoma ,paraganglioma ,PPGL ,telomeres ,TERT ,ATRX ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
One of the main problems we face with PPGL is the lack of molecular markers capable of predicting the development of metastases in patients. Telomere-related genes, such as TERT and ATRX, have been recently described in PPGL, supporting the association between the activation of immortalization mechanisms and disease progression. However, the contribution of other genes involving telomere preservation machinery has not been previously investigated. In this work, we aimed to analyze the prognostic value of a comprehensive set of genes involved in telomere maintenance. For this study, we collected 165 PPGL samples (97 non-metastatic/63 metastatic), genetically characterized, in which the expression of 29 genes of interest was studied by NGS. Three of the 29 genes studied, TERT, ATRX and NOP10, showed differential expression between metastatic and non-metastatic cases, and alterations in these genes were associated with a shorter time to progression, independent of SDHB-status. We studied telomere length by Q-FISH in patient samples and in an in vitro model. NOP10 overexpressing tumors displayed an intermediate-length telomere phenotype without ALT, and in vitro results suggest that NOP10 has a role in telomerase-dependent telomere maintenance. We also propose the implementation of NOP10 IHC to better stratify PPGL patients.
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- 2021
- Full Text
- View/download PDF
4. Analysis of Telomere Maintenance Related Genes Reveals NOP10 as a New Metastatic-Risk Marker in Pheochromocytoma/Paraganglioma
- Author
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Massimo Mannelli, Alberto Cascón, Sara Mellid, Marta Pulgarín-Alfaro, Mercedes Robledo, Alberto Díaz-Talavera, Luis J Leandro-García, Letizia Canu, Svenja Nölting, Sandra Rodriguez-Perales, Sonsoles Guadalix, Eduardo Caleiras, Raúl Torres-Ruiz, Patricia Gonzalez, María Calatayud, Cristina Montero-Conde, Scherezade Jiménez-Villa, Maria A. Blasco, Maria Currás-Freixes, Felix Beuschlein, Eduardo Gil, Nicole Bechmann, Giovanna Roncador, Hanna Remde, Graeme Eisenhofer, Paula Martinez, Martin Fassnacht, Diego Megías, Bruna Calsina, Marcus Quinkler, Cristina Rodríguez-Antona, Rita Maria Regojo, Rocío Letón, María Monteagudo, Ángel M Martínez-Montes, Elena Rapizzi, Cristina Álvarez-Escolá, Manuel Pérez-Martínez, and UAM. Departamento de Medicina
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Cancer Research ,Prognostic biomarker ,Medicina ,ALT ,TERT ,Pheochromocytoma ,Biology ,Paraganglioma ,03 medical and health sciences ,paraganglioma ,0302 clinical medicine ,medicine ,PPGL ,ddc:610 ,prognostic biomarker ,Gene ,NOP10 ,RC254-282 ,ATRX ,030304 developmental biology ,0303 health sciences ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,telomeres ,Phenotype ,pheochromocytoma ,In vitro ,Telomere ,Telomeres ,Oncology ,030220 oncology & carcinogenesis ,Cancer research ,Immunohistochemistry - Abstract
Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM, One of the main problems we face with PPGL is the lack of molecular markers capable of predicting the development of metastases in patients. Telomere-related genes, such as TERT and ATRX, have been recently described in PPGL, supporting the association between the activation of immortalization mechanisms and disease progression. However, the contribution of other genes involving telomere preservation machinery has not been previously investigated. In this work, we aimed to analyze the prognostic value of a comprehensive set of genes involved in telomere maintenance. For this study, we collected 165 PPGL samples (97 non-metastatic/63 metastatic), genetically characterized, in which the expression of 29 genes of interest was studied by NGS. Three of the 29 genes studied, TERT, ATRX and NOP10, showed differential expression between metastatic and non-metastatic cases, and alterations in these genes were associated with a shorter time to progression, independent of SDHB-status. We studied telomere length by Q-FISH in patient samples and in an in vitro model. NOP10 overexpressing tumors displayed an intermediate-length telomere phenotype without ALT, and in vitro results suggest that NOP10 has a role in telomerase-dependent telomere maintenance. We also propose the implementation of NOP10 IHC to better stratify PPGL patients., This work was supported by Project PI17/01796 and PI20/01169 to M.R. [Instituto de Salud Carlos III (ISCIII), Acción Estratégica en Salud, cofinanciado a través del Fondo Europeo de Desarrollo Regional (FEDER)], Paradifference Foundation [no grant number applicable to M.R.] and Pheipas Association [no grant number applicable to M.R.]. Research in the M.A.B. lab was funded by the Spanish State Research Agency (AEI), Ministry of Science and Innovation, cofounded by the European Regional Development Fund (ERDF) (SAF2017-82623-R and SAF2015-72455-EXP), the Comunidad de Madrid Project (S2017/BMD-3770), the World Cancer Research (WCR) Project (16-1177), the European Research Council (ERC-AvG Shelterines GA882385) and the Fundación Botín (Spain). International collaborators research has been supported by the Deutsche Forschungsgemeinschaft (DFG) within the CRC/Transregio 205/1 “The Adrenal: Central Relay in Health and Disease” to F.B., S.N., M.F.-C., N.B. and G.E. and by the Immuno-TargET project under the umbrella of the University Medicine Zurich to F.B. and S.N. M.M. was supported by the Spanish Ministry of Science, Innovation and Universities “Formación del Profesorado Universitario—FPU” fellowship with ID number FPU18/00064. L.J.L.-G. was supported both by the Banco Santander Foundation and La Caixa Postdoctoral Junior Leader Fellowship (LCF/BQ/PI20/11760011). C.M.-C. was supported by a grant from the AECC Foundation (AIO15152858 MONT). A.M.M.-M. was supported by CAM (S2017/BMD-3724; TIRONET2-CM). B.C. was supported by the Rafael del Pino Foundation (Becas de Excelencia Rafael del Pino 2017) and currently by the ISCIII project PI17/01796. A.D.-T. is supported by the Centro de Investigacion Biomédica en Red de Enfermedades Raras (CIBERER). We thank the Spanish National Tumor Bank Network (RD09/0076/00047) for the support in obtaining tumor samples and all patients, physicians and tumor biobanks involved in the study
- Published
- 2021
- Full Text
- View/download PDF
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