PMID- 34276700 OWN - NLM STAT- MEDLINE DCOM- 20211217 LR - 20231013 IS - 1664-3224 (Electronic) IS - 1664-3224 (Linking) VI - 12 DP - 2021 TI - Targeting Mitochondrial-Derived Reactive Oxygen Species in T Cell-Mediated Autoimmune Diseases. PG - 703972 LID - 10.3389/fimmu.2021.703972 [doi] LID - 703972 AB - Mitochondrial dysfunction resulting in oxidative stress could be associated with tissue and cell damage common in many T cell-mediated autoimmune diseases. Autoreactive CD4 T cell effector subsets (Th1,Th17) driving these diseases require increased glycolytic metabolism to upregulate key transcription factors (TF) like T-bet and RORgammat that drive differentiation and proinflammatory responses. However, research in immunometabolism has demonstrated that mitochondrial-derived reactive oxygen species (ROS) act as signaling molecules contributing to T cell fate and function. Eliminating autoreactive T cells by targeting glycolysis or ROS production is a potential strategy to inhibit autoreactive T cell activation without compromising systemic immune function. Additionally, increasing self-tolerance by promoting functional immunosuppressive CD4 T regulatory (Treg) cells is another alternative therapeutic for autoimmune disease. Tregs require increased ROS and oxidative phosphorylation (OxPhos) for Foxp3 TF expression, differentiation, and anti-inflammatory IL-10 cytokine synthesis. Decreasing glycolytic activity or increasing glutathione and superoxide dismutase antioxidant activity can also be beneficial in inhibiting cytotoxic CD8 T cell effector responses. Current treatment options for T cell-mediated autoimmune diseases such as Type 1 diabetes (T1D), multiple sclerosis (MS), rheumatoid arthritis (RA), and systemic lupus erythematosus (SLE) include global immunosuppression, antibodies to deplete immune cells, and anti-cytokine therapy. While effective in diminishing autoreactive T cells, they can also compromise other immune responses resulting in increased susceptibility to other diseases and complications. The impact of mitochondrial-derived ROS and immunometabolism reprogramming in autoreactive T cell differentiation could be a potential target for T cell-mediated autoimmune diseases. Exploiting these pathways may delay autoimmune responses in T1D. CI - Copyright (c) 2021 Chavez and Tse. FAU - Chavez, Miranda D AU - Chavez MD AD - Department of Microbiology, Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, AL, United States. FAU - Tse, Hubert M AU - Tse HM AD - Department of Microbiology, Comprehensive Diabetes Center, University of Alabama at Birmingham, Birmingham, AL, United States. LA - eng GR - P30 DK079626/DK/NIDDK NIH HHS/United States GR - R01 DK099550/DK/NIDDK NIH HHS/United States GR - R01 DK127497/DK/NIDDK NIH HHS/United States GR - T32 GM008111/GM/NIGMS NIH HHS/United States GR - R56 DK126456/DK/NIDDK NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't PT - Review DEP - 20210701 PL - Switzerland TA - Front Immunol JT - Frontiers in immunology JID - 101560960 RN - 0 (Reactive Oxygen Species) SB - IM MH - *Autoimmune Diseases/immunology/therapy MH - Humans MH - *Lymphocyte Activation MH - Mitochondria/*immunology MH - Reactive Oxygen Species/*immunology MH - T-Lymphocytes, Regulatory/*immunology PMC - PMC8281042 OTO - NOTNLM OT - T cell OT - autoimmunity OT - immunometabolism OT - mitochondria OT - reactive oxygen species COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/07/20 06:00 MHDA- 2021/12/18 06:00 PMCR- 2021/01/01 CRDT- 2021/07/19 05:52 PHST- 2021/05/01 00:00 [received] PHST- 2021/06/18 00:00 [accepted] PHST- 2021/07/19 05:52 [entrez] PHST- 2021/07/20 06:00 [pubmed] PHST- 2021/12/18 06:00 [medline] PHST- 2021/01/01 00:00 [pmc-release] AID - 10.3389/fimmu.2021.703972 [doi] PST - epublish SO - Front Immunol. 2021 Jul 1;12:703972. doi: 10.3389/fimmu.2021.703972. eCollection 2021.