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3 results on '"Protein Tyrosine Phosphatase, Non-Receptor Type 2/genetics"'

1. PTPN2 Regulates the Interferon Signaling and Endoplasmic Reticulum Stress Response in Pancreatic β-Cells in Autoimmune Diabetes

Author

Elvira, Bernat, Vandenbempt, Valerie, Bauzá-Martinez, Julia, Crutzen, Raphaël, Negueruela, Javier, Ibrahim, Hazem, Winder, Matthew L., Brahma, Manoja K., Vekeriotaite, Beata, Martens, Pieter Jan, Singh, Sumeet Pal, Rossello, Fernando, Lybaert, Pascale, Otonkoski, Timo, Gysemans, Conny, Wu, Wei, Gurzov, Esteban N., Afd Biomol.Mass Spect. and Proteomics, Biomolecular Mass Spectrometry and Proteomics, Afd Biomol.Mass Spect. and Proteomics, and Biomolecular Mass Spectrometry and Proteomics

Subjects
Protein Tyrosine Phosphatase, Non-Receptor Type 2, Protein Tyrosine Phosphatase, Non-Receptor Type 2/genetics, Endocrinology, Diabetes and Metabolism, Apoptosis, Type 1/metabolism, Interferon-gamma/pharmacology, Endoplasmic Reticulum Stress/physiology, Endoplasmic Reticulum Stress, Non-Receptor Type 2/genetics, Diabetes and Metabolism, Interferon-gamma, Mice, Diabetes Mellitus, Type 1, Endocrinology, Insulin-Secreting Cells/metabolism, Mice, Inbred NOD, Insulin-Secreting Cells, Apoptosis/genetics, Diabetes Mellitus, Internal Medicine, Inbred NOD, Animals, Diabetes Mellitus, Type 1/metabolism, Humans, Protein Tyrosine Phosphatase
Abstract

Type 1 diabetes (T1D) results from autoimmune destruction of β-cells in the pancreas. Protein tyrosine phosphatases (PTPs) are candidate genes for T1D and play a key role in autoimmune disease development and β-cell dysfunction. Here, we assessed the global protein and individual PTP profiles in the pancreas from early onset non-obese diabetic (NOD) mice treated with an anti-CD3 monoclonal antibody and interleukin-1 receptor antagonist. The treatment reversed hyperglycemia and we observed enhanced expression of PTPN2, a PTP family member and T1D candidate gene, and endoplasmic reticulum (ER) chaperones in the pancreatic islets. To address the functional role of PTPN2 in β-cells, we generated PTPN2-deficient human stem cell-derived β-like and EndoC-βH1 cells. Mechanistically, we demonstrated that PTPN2 inactivation in β-cells exacerbates type I and type II interferon signaling networks and the potential progression towards autoimmunity. Moreover, we established the capacity of PTPN2 to positively modulate the Ca2+-dependent unfolded protein response and ER stress outcome in β-cells. Adenovirus-induced overexpression of PTPN2 partially protected from ER-stress induced β-cell death. Our results postulate PTPN2 as a key protective factor in β-cells during inflammation and ER stress in autoimmune diabetes.

Published
2022

2. Whole-genome sequencing of a sporadic primary immunodeficiency cohort

Author

Thaventhiran, James E.D., Lango Allen, Hana, Burren, Oliver S., Rae, William, Greene, Daniel, Staples, Emily, Zhang, Zinan, Farmery, James H.R., Simeoni, Ilenia, Rivers, Elizabeth, Maimaris, Jesmeen, Penkett, Christopher J., Stephens, Jonathan, Deevi, Sri V.V., Sanchis-Juan, Alba, Gleadall, Nicholas S., Thomas, Moira J., Sargur, Ravishankar B., Gordins, Pavels, Baxendale, Helen E., Brown, Matthew, Tuijnenburg, Paul, Worth, Austen, Hanson, Steven, Linger, Rachel J., Buckland, Matthew S., Rayner-Matthews, Paula J., Gilmour, Kimberly C., Samarghitean, Crina, Seneviratne, Suranjith L., Sansom, David M., Lynch, Andy G., Megy, Karyn, Ellinghaus, Eva, Ellinghaus, David, Jorgensen, Silje F., Karlsen, Tom H., Stirrups, Kathleen E., Cutler, Antony J., Kumararatne, Dinakantha S., Chandra, Anita, Edgar, J. David M., Herwadkar, Archana, Cooper, Nichola, Grigoriadou, Sofia, Huissoon, Aarnoud P., Goddard, Sarah, Jolles, Stephen, Schuetz, Catharina, Boschann, Felix, Abbs, Stephen, Adhya, Zoe, Adlard, Julian, Afzal, Maryam, Ahmed, Irshad, Ahmed, Munaza, Ahmed, Saeed, Aitman, Timothy J., Alachkar, Hana, Alamelu, Jayanthi, Alikhan, Raza, Allen, Carl E., Allen, Louise, Allsup, David J., Alvi, Arif, Ambegaonkar, Gautam, Anantharachagan, Ariharan, Ancliff, Philip, Anderson, Julie, Antrobus, Richard, Armstrong, Ruth, Arno, Gavin, Arumugakani, Gururaj, Arya, Rita, Ashford, Sofie, Astle, William J., Attwood, Anthony, Austin, Steve, Aydinok, Yesim, Ayub, Waqar, Babbs, Christian, Bacchelli, Chiara, Baglin, Trevor, Bakchoul, Tamam, Bariana, Tadbir K., Barratt, Jonathan, Barwell, Julian, Baski, John, Bates, Rachel W., Batista, Joana, Baynam, Gareth, Bennett, David L., Bethune, Claire, Bhatnagar, Neha, Bibi, Shahnaz, Bierzynska, Agnieszka, Biss, Tina, Bitner-Glindzicz, Maria A.K., Bleda, Marta, Blesneac, Iulia, Boardman, Barbara, Boddana, Preetham, Bogaard, Harm J., Booth, Claire, Boyce, Sara, Bradley, John R., Brady, Angela, Breen, Gerome, Brennan, Paul, Brewer, Carole, Briley, Annette, Brown, Richard, Browning, Michael J., Brownlie, Mary, Bryson, Christine J., Buchan, Rachel J., Buck, Jackie, Bueser, Teofila, Diz, Carmen Bugarin, Burns, Siobhan O., Calleja, Paul, Carmichael, Jenny, Carr-White, Gerald, Carss, Keren J., Casey, Ruth, Chalmers, Elizabeth, Chambers, Jenny, Chambers, John, Chan, Melanie M.Y., Chan, Melissa V., Cheng, Floria, Chinn, Ivan K., Chinnery, Patrick F., Chitre, Manali, Chong, Sam, Christian, Martin T., Church, Colin, Clement, Emma M., Brod, Naomi Clements, Clifford, Hayley, Clowes, Virginia E., Coghlan, Gerry, Colby, Elizabeth, Cole, Trevor R.P., Collins, Janine H., Collins, Peter W., Condliffe, Robin, Cook, H. Terence, Cook, Stuart, Cookson, Victoria, Corris, Paul A., Creaser-Myers, Amanda, Crisp-Hihn, Abigail, Curry, Nicola S., Da Costa, Rosa, Danesino, Cesare, Daniels, Matthew J., Darby, Damaris, Daugherty, Louise C., Davies, E. G., Davies, Sophie, Davis, John, de Bree, Godelieve J., Deacock, Sarah, Deegan, Patrick B., Dempster, John, Dent, Timothy, Deshpande, Charu, Devlin, Lisa A., Dewhurst, Eleanor F., Dixit, Anand K., Dixon, Peter H., Doffinger, Rainer, Dolling, Helen, Dormand, Natalie, Downes, Kate, Drazyk, Anna M., Drewe, Elizabeth, Duarte, Daniel, Dutt, Tina, Edwards, Karen E., Egner, William, Ekani, Melanie N., El-Shanawany, Tariq, Elkhalifa, Shuayb, Elston, Tony, Emmerson, Ingrid, Erber, Wendy N., Erwood, Marie, Estiu, Maria C., Evans, Dafydd Gareth, Evans, Gillian, Everington, Tamara, Eyries, Mélanie, Favier, Remi, Firth, Helen V., Fitzpatrick, Maggie M., Fletcher, Debra, Flinter, Frances A., Fox, James C., Frary, Amy J., French, Courtney E., Freson, Kathleen, Frontini, Mattia, Furie, Bruce, Gale, Daniel P., Gall, Henning J., Gardham, Alice, Gaspar, H. Bobby, Gattens, Michael, Ghali, Neeti, Ghataorhe, Pavandeep K., Ghio, Stefano, Ghofrani, Hossein Ardeschir, Ghurye, Rohit, Gibbs, J. Simon R., Gilbert, Rodney D., Girerd, Barbara, Girling, Joanna C., Gissen, Paul, Gorman, Kathleen M., Gosal, David, Graf, Stefan, Grassi, Luigi, Greenhalgh, Alan J., Greenhalgh, Lynn, Greinacher, Andreas, Gresele, Paolo, Griffiths, Philip G., Griffiths, Sian, Grozeva, Detelina, Hackett, Scott J., Hadden, Robert D.M., Hadinnapola, Charaka, Hague, Rosie, Hague, William M., Haimel, Matthias, Hall, Matthew, Halmagyi, Csaba, Hammerton, Tracey, Hanson, Helen L., Harkness, Kirsty, Harper, Andrew R., Harper, Lorraine, Harris, Claire, Harrison, Claire, Hart, Daniel, Hassan, Ahamad, Hayman, Grant, Heemskerk, Johan W.M., Hegde, Shivaram, Henderson, Alex, Henderson, Robert H., Hensiek, Anke, Henskens, Yvonne M.C., Hodgson, Joshua, Hoffman, Jonathan, Holden, Simon, Holder, Muriel, Horvath, Rita, Houlden, Henry, Houweling, Arjan C., Howard, Luke S., Hu, Fengyuan, Hudson, Gavin, Hughes, Sean, Hughes, Stephen, Huis in ‘t Veld, Anna E., Humbert, Marc, Hurles, Matthew E., Hurst, Jane A., Irvine, Val, Izatt, Louise, James, Roger, Jeevaratnam, Praveen, Johnson, Mark, Johnson, Sally A., Jolley, Jennifer D., Jones, Bryony, Jones, Julie, Josifova, Dragana, Jurkute, Neringa, Karim, Yousuf M., Karoshi, Mahantesh A., Kasanicki, Mary A., Kazkaz, Hanadi, Kazmi, Rashid, Keeling, David, Kelleher, Peter, Kelly, Anne M., Kempster, Carly, Kennedy, Fiona, Kiani, Sorena, Kiely, David G., Kingston, Nathalie, Kinsey, Sally, Klein, Nigel, Klima, Robert, Knox, Ellen, Kostadima, Myrto A., Kovacs, Gabor, Koziell, Ania B., Kreuzhuber, Roman, Krishnakumar, Deepa, Kuijpers, Taco W., Kumar, Ajith, Kurian, Manju A., Laffan, James, Laffan, Michael A., Lalloo, Fiona, Lambert, Michele P., Lawman, Sarah H.A., Lawrie, Allan, Layton, D. Mark, Lear, Sara E., Lees, Melissa M., Lentaigne, Claire, Levine, Adam P., Lewington, Andrew J.P., Li, Wei, Liesner, Ri, Liu, Bin, Longhurst, Hilary, Lorenzo, Lorena E., Louka, Eleni, Hadeler, Silvia Lucato, Lyons, Paul A., Macdougall, Malcolm, Machado, Rajiv D., MacKenzie Ross, Robert V., Mackillop, Lucy H., MacLaren, Robert, Madan, Bella, Magee, Laura, Mahdi-Rogers, Mohamed, Maher, Eamonn R., Makris, Mike, Mangles, Sarah, Manson, Ania, Manzur, Adnan, Mapeta, Rutendo, Marchbank, Kevin J., Mark, Patrick B., Marks, Stephen, Markus, Hugh S., Marschall, Hanns Ulrich, Marshall, Andrew, Martin, Jennifer M., Masati, Larahmie, Mathias, Mary, Matser, Vera, Matthews, Emma L., Maw, Anna, Maxwell, Heather, McAlinden, Paul, McCarthy, Mark I., McDermott, Elizabeth M., McGowan, Simon J., McJannet, Coleen, McKinney, Harriet, Meacham, Stuart, Mead, Adam J., Castello, Ignacio Medina, Meehan, Sharon, Mehta, Sarju, Mercer, Catherine L., Michaelides, Michel, Michell, Anna C., Milford, David, Millar, Carolyn M., Millar, Hazel, Mistry, Anoop, Moenen, Floor, Moledina, Shahin, Montani, David, Moore, Anthony T., Moore, Jason, Morrell, Nicholas W., Morrisson, Valerie, Mozere, Monika, Muir, Keith W., Mumford, Andrew D., Murng, Sai H.K., Nasir, Iman, Nejentsev, Sergey, Newnham, Michael, Ng, Joanne, Ngoh, Adeline, Noorani, Sadia, Noori, Muna, Nurden, Paquita, O’Sullivan, Jennifer M., Obaji, Samya, Okoli, Steven, Oksenhendler, Eric, Olschewski, Andrea, Olschewski, Horst, Ong, Albert C.M., Ong, Kai Ren, Oram, Helen, Ormondroyd, Elizabeth, Othman, Shokri, Ouwehand, Willem H., Pantazis, Antonis, Papadia, Sofia, Papandreou, Apostolos, Park, Soo Mi, Parker, Alasdair P.J., Parry, David, Parsons, Georgina, Pasi, K. John, Paterson, Joan, Payne, Jeanette H., Peacock, Andrew J., Peerlinck, Kathelijne, Pepke-Zaba, Joanna, Perry, David, Petersen, Romina, Piechowski-Jozwiak, Bartlomiej, Pinto, Fernando, Polwarth, Gary J., Ponsford, Mark J., Prasad, Sanjay, Prokopenko, Inga, Psaila, Beth, Pyle, Angela, Qasim, Waseem, Quinn, Ellen, Quinti, Isabella, Raina, Sanjay, Ranganathan, Lavanya, Rankin, Julia, Rankin, Stuart, Rao, Anupama, Raymond, F. Lucy, Rehnstrom, Karola, Reid, Evan, Reilly, Mary M., Renton, Tara, Revel-Vilk, Shoshana, Rhodes, Christopher J., Rice, Andrew S.C., Richards, Emma E., Richards, Mike, Richardson, Sylvia, Richter, Alex, Robert, Leema, Roberts, Irene, Rondina, Matthew T., Rosser, Elisabeth, Rothwell, Peter, Roughley, Catherine, Roy, Noemi B., Rue-Albrecht, Kevin, Sadeghi-Alavijeh, Omid, Saleem, Moin A., Salmon, Richard M., Samani, Nilesh J., Sambrook, Jennifer G., Sandford, Richard, Santra, Saikat, Satchell, Simon C., Savic, Sinisa, Scelsi, Laura, Schotte, Gwen, Schulman, Sol, Schulze, Harald, Scott, Richard, Scully, Marie, Searle, Claire, Seeger, Werner, Sewell, W. A.Carrock, Seyres, Denis, Shackley, Fiona, Shamardina, Olga, Shapiro, Susan E., Sharma, Pankaj, Shehata, Hassan A., Shipley, Deborah, Shtoyerman, Rakefet, Sibson, Keith, Side, Lucy, Simpson, Michael, Sims, Matthew C., Sinha, Manish D., Sivapalaratnam, Suthesh, Skytte, Anne Bine, Smith, Kenneth G.C., Snape, Katie, Sneddon, Linda, Sohal, Aman, Soubrier, Florent, Southgate, Laura, Southwood, Mark, Splitt, Miranda, Staines, Simon, Stark, Hannah, Stauss, Hans, Steele, Cathal L., Stein, Daniel, Stein, Penelope E., Stock, Sophie, Stubbs, Matthew J., Suntharalingam, Jay, Swietlik, Emilia M., Symington, Emily, Tait, R. Campbell, Talks, Kate, Tan, Rhea Y.Y., Taylor, Gordon B., Thachil, Jecko, Themistocleous, Andreas C., Thomas, David C., Thomas, Ellen, Thomas, Patrick, Thompson, Dorothy A., Thomson, Kate, Thrasher, Adrian J., Thys, Chantal, Tilly, Tobias, Tischkowitz, Marc, Titterton, Catherine, Todd, John A., Toh, Cheng Hock, Tool, Anton T.J., Toshner, Mark R., Traylor, Matthew, Treacy, Carmen M., Treadaway, Paul, Trembath, Richard C., Trippier, Sarah, Tuna, Salih, Turek, Wojciech, Turro, Ernest, Upton, Paul D., Urniaz, Rafal, Vale, Tom, Van Geet, Chris, van Zuydam, Natalie, Vandersteen, Anthony M., Vazquez-Lopez, Marta, Veltman, Marijcke W.M., Vogt, Julie, von Ziegenweidt, Julie, Noordegraaf, Anton Vonk, Vora, Ajay, Vries, Minka J.A., Wakeling, Emma L., Walker, Neil, Walker, Suellen M., Walsh, Roddy, Wanjiku, Ivy, Ware, James S., Warner, Timothy Q., Wassmer, Evangeline, Watkins, Hugh, Watson, Henry G., Watt, Christopher, Waugh, Dean, Webb, Nick, Webster, Andrew R., Wei, Wei, Welch, Angela, Welch, Steven B., Werring, David, Wessels, Julie, Westbury, Sarah K., Westwood, John Paul W., Wharton, John, Whitehorn, Deborah, Whitworth, James, Wilkins, Martin R., Willcocks, Lisa, Williams, David J., Williamson, Catherine, Wong, Edwin K.S., Wood, Nicholas, Wood, Yvette, Woods, Christopher Geoffrey, Woodward, Emma R., Workman, Sarita, Wort, Stephen J., Yates, Katherine, Yeatman, Nigel, Yong, Patrick F.K., Young, Timothy, Yu, Ping, Yu-Wai-Man, Patrick, Zlamalova, Eliska, Wellcome Trust, Thaventhiran, James [0000-0001-8616-074X], Lango Allen, Hana [0000-0002-7803-8688], Burren, Oliver [0000-0002-3388-5760], Rae, William [0000-0003-0095-2514], Zhang, Zinan [0000-0003-3831-2272], Megy, Karyn [0000-0002-2826-3879], Johnson, Kathleen [0000-0002-6823-3252], Smith, Kenneth [0000-0003-3829-4326], Apollo - University of Cambridge Repository, University of St Andrews. School of Medicine, University of St Andrews. Statistics, University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis, University of St Andrews. Cellular Medicine Division, Ege Üniversitesi, Experimental Immunology, Graduate School, AII - Inflammatory diseases, Infectious diseases, APH - Aging & Later Life, APH - Global Health, Paediatric Infectious Diseases / Rheumatology / Immunology, ARD - Amsterdam Reproduction and Development, Pulmonary medicine, ACS - Pulmonary hypertension & thrombosis, Human genetics, APH - Quality of Care, ACS - Atherosclerosis & ischemic syndromes, Biochemie, RS: Carim - B03 Cell biochemistry of thrombosis and haemostasis, Faculteit FHML Centraal, MUMC+: DA CDL Algemeen (9), RS: GROW - R3 - Innovative Cancer Diagnostics & Therapy, MUMC+: MA Hematologie (9), Interne Geneeskunde, and Promovendi CD

Subjects
0301 basic medicine, Male, Protein Tyrosine Phosphatase, Non-Receptor Type 2/genetics, Genome-wide association study, VARIANTS, Regulatory Sequences, Nucleic Acid, medicine.disease_cause, Genome, Cohort Studies, 0302 clinical medicine, RARE, QR180 Immunology, Primary Immunodeficiency Consortium for the NIHR Bioresource, Genetics, Protein Tyrosine Phosphatase, Non-Receptor Type 2, Multidisciplinary, Suppressor of Cytokine Signaling 1 Protein/genetics, GENETIC-VARIATION, RNA-Binding Proteins, Primary Immunodeficiency Diseases/diagnosis, ASSOCIATION, Penetrance, Multidisciplinary Sciences, DEFICIENCY, QR180, Science & Technology - Other Topics, Female, General Science & Technology, Primary Immunodeficiency Diseases, Transcription Factors/genetics, Genomics, COMMON VARIABLE IMMUNODEFICIENCY, QH426 Genetics, Biology, Article, Actin-Related Protein 2-3 Complex, 03 medical and health sciences, Suppressor of Cytokine Signaling 1 Protein, SDG 3 - Good Health and Well-being, SUPPRESSOR, Actin-Related Protein 2-3 Complex/genetics, medicine, Humans, QH426, Whole genome sequencing, Science & Technology, Whole Genome Sequencing, Common variable immunodeficiency, DAS, Bayes Theorem, Immune dysregulation, Regulatory Sequences, Nucleic Acid/genetics, medicine.disease, RNA-Binding Proteins/genetics, STAT1 MUTATIONS, 030104 developmental biology, Primary immunodeficiency, IUIS PHENOTYPIC CLASSIFICATION, GAIN, 030215 immunology, Genome-Wide Association Study, Transcription Factors
Abstract

Primary immunodeficiency (PID) is characterized by recurrent and often life-threatening infections, autoimmunity and cancer, and it poses major diagnostic and therapeutic challenges. Although the most severe forms of PID are identified in early childhood, most patients present in adulthood, typically with no apparent family history and a variable clinical phenotype of widespread immune dysregulation: about 25% of patients have autoimmune disease, allergy is prevalent and up to 10% develop lymphoid malignancies1–3. Consequently, in sporadic (or non-familial) PID genetic diagnosis is difficult and the role of genetics is not well defined. Here we address these challenges by performing whole-genome sequencing in a large PID cohort of 1,318 participants. An analysis of the coding regions of the genome in 886 index cases of PID found that disease-causing mutations in known genes that are implicated in monogenic PID occurred in 10.3% of these patients, and a Bayesian approach (BeviMed4) identified multiple new candidate PID-associated genes, including IVNS1ABP. We also examined the noncoding genome, and found deletions in regulatory regions that contribute to disease causation. In addition, we used a genome-wide association study to identify loci that are associated with PID, and found evidence for the colocalization of—and interplay between—novel high-penetrance monogenic variants and common variants (at the PTPN2 and SOCS1 loci). This begins to explain the contribution of common variants to the variable penetrance and phenotypic complexity that are observed in PID. Thus, using a cohort-based whole-genome-sequencing approach in the diagnosis of PID can increase diagnostic yield and further our understanding of the key pathways that influence immune responsiveness in humans. © 2020, The Author(s), under exclusive licence to Springer Nature Limited., Wellcome Trust, WT: 104807/Z/14/Z University College London, UCL: 100140/Z/12/Z, 107212/Z/15/Z, MR/L019027, 203141/Z/16/Z, 091157/Z/10/Z Bundesministerium für Bildung und Forschung, BMBF: 01ZX1306A University of Cambridge 201250/Z/16/Z 01ZX1709 Seventh Framework Programme, FP7 NIHR Bristol Biomedical Research Centre Deutsche Forschungsgemeinschaft, DFG Deutsche Forschungsgemeinschaft, DFG: EXC 2167-390884018 Juvenile Diabetes Research Foundation United Kingdom, JDRF: 9-2011-253, 5-SRA-2015-130-A-N National Institute for Health Research, NIHR: RG65966 Medical Research Council, MRC: RG95376, MR/L006197/1 Great Ormond Street Hospital for Children, GOSH, Acknowledgements The NBR-RD PID Consortium is part of the NIHR BioResource, for which funding was provided by the NIHR (NIHR, grant number RG65966). We acknowledge the participation of all NIHR BioResource volunteers, and thank the NIHR BioResource centre and staff for their contribution. J.E.D.T. is supported by the Medical Research Council (MRC) (RG95376 and MR/L006197/1); A.J.T. is supported by the Wellcome Trust (104807/Z/14/Z) and the NIHR Biomedical Research Centre at Great Ormond Street Hospital for Children NHS Foundation Trust and University College London; K.G.C.S. is supported by the MRC (programme grant MR/L019027) and is a Wellcome Investigator; A.J.C. was supported by the Wellcome Trust (091157/Z/10/Z, 107212/Z/15/Z, 100140/Z/12/Z, 203141/Z/16/Z), JDRF (9-2011-253, 5-SRA-2015-130-A-N), NIHR Oxford Biomedical Research Centre and NIHR Cambridge Biomedical Research Centre; E.E. has received funding from the European Union Seventh Framework Programme (FP7-PEOPLE-2013-COFUND) under grant agreement number 609020-Scientia Fellows; E.R. is supported by the Wellcome Trust (201250/Z/16/Z); D.E. is supported by the German Federal Ministry of Education and Research (BMBF) within the framework of the e:Med research and funding concept (SysInflame grant 01ZX1306A; GB-XMAP grant 01ZX1709) and funded by the Deutsche Forschungsgemeinschaft (DFG; German Research Foundation) under Germany’s Excellence Strategy (EXC 2167-390884018). The NIHR Cambridge Biomedical Research Centre (BRC) is a partnership between Cambridge University Hospitals NHS Foundation Trust and the University of Cambridge, funded by the NIHR. This research was co-funded by the support listed above and the NIHR Cambridge BRC.

Published
2020

3. Antigen receptor-mediated depletion of FOXP3 in induced regulatory T-lymphocytes via PTPN2 and FOXO1

Author

Uta-Maria Bauer, Cholho Kang, Anne Brüstle, Evita Bothur, Andreas Radbruch, Maria Bieringer, Michael Lohoff, Anna-Barbara Stittrich, Katharina Reinhard, Magdalena Huber, Alexander Visekruna, Nadine Bollig, Ulrich Steinhoff, Dirk Brenner, Claudia Haftmann, Hartmann Raifer, Bärbel Camara, Veronika Sexl, Tim Sparwasser, Mir-Farzin Mashreghi, Antje Repenning, Tak Wah Mak, and TWINCORE, Centre for Experimental and Clinical Infection Research GmbH, Feodor-Lynen-Str. 3-7, 30625 Hannover, Germany.

Subjects
CD4-Positive T-Lymphocytes, Male, Receptors, Antigen, T-Cell/genetics, Protein Tyrosine Phosphatase, Non-Receptor Type 2/genetics, Blotting, Western, Receptors, Antigen, T-Cell, General Physics and Astronomy, FOXO1, chemical and pharmacologic phenomena, Protein tyrosine phosphatase, T-Lymphocytes, Regulatory, General Biochemistry, Genetics and Molecular Biology, Article, 03 medical and health sciences, Mice, 0302 clinical medicine, Animals, Forkhead Transcription Factors/genetics, Transcription factor, STAT5, Cells, Cultured, 030304 developmental biology, 0303 health sciences, Gene knockdown, Protein Tyrosine Phosphatase, Non-Receptor Type 2, CD4-Positive T-Lymphocytes/metabolism, Multidisciplinary, biology, Forkhead Box Protein O1, T-cell receptor, FOXP3, Forkhead Transcription Factors, General Chemistry, Flow Cytometry, Cell biology, T-Lymphocytes, Regulatory/metabolism, Immunology, biology.protein, Phosphorylation, Female, 030215 immunology
Abstract

Regulatory T-cells induced via IL-2 and TGFβ in vitro (iTreg) suppress immune cells and are potential therapeutics during autoimmunity. However, several reports described their re-differentiation into pathogenic cells in vivo and loss of their key functional transcription factor (TF) FOXP3 after T-cell antigen receptor (TCR)-signalling in vitro. Here, we show that TCR-activation antagonizes two necessary TFs for foxp3 gene transcription, which are themselves regulated by phosphorylation. Although the tyrosine phosphatase PTPN2 is induced to restrain IL-2-mediated phosphorylation of the TF STAT5, expression of the TF FOXO1 is downregulated and miR-182, a suppressor of FOXO1 expression, is upregulated. TGFβ counteracts the FOXP3-depleting TCR-signal by reassuring FOXO1 expression and by re-licensing STAT5 phosphorylation. Overexpressed phosphorylation-independent active versions of FOXO1 and STAT5 or knockdown of PTPN2 restores FOXP3 expression despite TCR-signal and absence of TGFβ. This study suggests novel targets for stabilisation and less dangerous application of iTreg during devastating inflammation., Antigen stimulation in vivo can reprogram T regulatory cells to lose the expression of Foxp3 and become effector cells. Here the authors show that the mechanism involves dephosphorylation of STAT5 by PTPN2 and downregulation of Foxo1 by miR-182.

Published
2015

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