PMID- 28733878 OWN - NLM STAT- MEDLINE DCOM- 20180820 LR - 20180820 IS - 1661-4917 (Electronic) IS - 0004-069X (Linking) VI - 66 IP - 1 DP - 2018 Feb TI - Role of TGF-beta in Self-Peptide Regulation of Autoimmunity. PG - 11-19 LID - 10.1007/s00005-017-0482-6 [doi] AB - Transforming growth factor (TGF)-beta has been implicated in regulation of the immune system, including autoimmunity. We have found that TGF-beta is readily produced by T cells following immunization with self-peptide epitopes that downregulate autoimmune responses in type 1 diabetes (T1D) prone nonobese diabetic (NOD) mice. These include multiple peptide epitopes derived from the islet beta-cell antigens GAD65 (GAD65 p202-221, GAD65 p217-236), GAD67 (GAD67 p210-229, GAD67 p225-244), IGRP (IGRP p123-145, IGRP p195-214) and insulin B-chain (Ins. B:9-23) that protected NOD mice from T1D. Immunization of NOD mice with the self-MHC class II I-A(g7) beta-chain-derived peptide, I-Abeta(g7) p54-76 also induced large amounts of TGF-beta and also protected these mice from diabetes development. These results indicate that peptides derived from disease related self-antigens and MHC class II molecules primarily induce TGF-beta producing regulatory Th3 and Tr1-like cells. TGF-beta produced by these cells could enhance the differentiation of induced regulatory iTreg and iTreg17 cells to prevent induction and progression of autoimmune diseases. We therefore suggest that peripheral immune tolerance could be induced and maintained by immunization with self-peptides that induce TGF-beta producing T cells. FAU - Singh, Bhagirath AU - Singh B AUID- ORCID: 0000-0002-9792-8694 AD - Department of Microbiology & Immunology, Centre for Human Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. bsingh@uwo.ca. AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. bsingh@uwo.ca. AD - Robarts Research Institute, University of Western Ontario, London, ON, N6A 5B7, Canada. bsingh@uwo.ca. FAU - Krawetz, Michael D AU - Krawetz MD AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. FAU - De Lima, Rachel M AU - De Lima RM AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. FAU - Mukherjee, Rinee AU - Mukherjee R AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. FAU - Chaturvedi, Pratibha AU - Chaturvedi P AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. FAU - Lee-Chan, Edwin AU - Lee-Chan E AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. FAU - Leiter, Edward H AU - Leiter EH AD - The Jackson Laboratory, Bar Harbor, ME, 04609, USA. FAU - Summers, Kelly L AU - Summers KL AD - Department of Microbiology & Immunology, Centre for Human Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. AD - Department of Microbiology and Immunology, University of Western Ontario, London, ON, N6A 5C1, Canada. AD - Lawson Health Research Institute, London, ON, Canada. LA - eng PT - Journal Article PT - Review DEP - 20170721 PL - Poland TA - Arch Immunol Ther Exp (Warsz) JT - Archivum immunologiae et therapiae experimentalis JID - 0114365 RN - 0 (Autoantigens) RN - 0 (Peptides) RN - 0 (Transforming Growth Factor beta) SB - IM MH - Animals MH - Autoantigens/immunology MH - Autoimmunity MH - Diabetes Mellitus, Type 1/*immunology MH - Humans MH - Immune Tolerance MH - Immunization MH - Mice MH - Mice, Inbred NOD MH - Peptides/immunology MH - T-Lymphocytes, Regulatory/*immunology MH - Transforming Growth Factor beta/*metabolism OTO - NOTNLM OT - Auto-antigens OT - NOD mice OT - Peptide epitopes OT - Regulatory T cells OT - TGF-beta OT - Type 1 diabetes EDAT- 2017/07/25 06:00 MHDA- 2018/08/21 06:00 CRDT- 2017/07/23 06:00 PHST- 2017/03/29 00:00 [received] PHST- 2017/06/19 00:00 [accepted] PHST- 2017/07/25 06:00 [pubmed] PHST- 2018/08/21 06:00 [medline] PHST- 2017/07/23 06:00 [entrez] AID - 10.1007/s00005-017-0482-6 [pii] AID - 10.1007/s00005-017-0482-6 [doi] PST - ppublish SO - Arch Immunol Ther Exp (Warsz). 2018 Feb;66(1):11-19. doi: 10.1007/s00005-017-0482-6. Epub 2017 Jul 21.