1
|
Kuczma MP, Szurek EA, Cebula A, Ngo VL, Pietrzak M, Kraj P, Denning TL, Ignatowicz L. Self and microbiota-derived epitopes induce CD4 + T cell anergy and conversion into CD4 +Foxp3 + regulatory cells. Mucosal Immunol 2021; 14:443-454. [PMID: 33139845 PMCID: PMC7946630 DOI: 10.1038/s41385-020-00349-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/31/2020] [Accepted: 09/23/2020] [Indexed: 02/04/2023]
Abstract
The physiological role of T cell anergy induction as a key mechanism supporting self-tolerance remains undefined, and natural antigens that induce anergy are largely unknown. In this report, we used TCR sequencing to show that the recruitment of CD4+CD44+Foxp3-CD73+FR4+ anergic (Tan) cells expands the CD4+Foxp3+ (Tregs) repertoire. Next, we report that blockade in peripherally-induced Tregs (pTregs) formation due to mutation in CNS1 region of Foxp3 or chronic exposure to a selecting self-peptide result in an accumulation of Tan cells. Finally, we show that microbial antigens from Akkermansia muciniphila commensal bacteria can induce anergy and drive conversion of naive CD4+CD44-Foxp3- T (Tn) cells to the Treg lineage. Overall, data presented here suggest that Tan induction helps the Treg repertoire to become optimally balanced to provide tolerance toward ubiquitous and microbiome-derived epitopes, improving host ability to avert systemic autoimmunity and intestinal inflammation.
Collapse
Affiliation(s)
- Michal P Kuczma
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Edyta A Szurek
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Anna Cebula
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Vu L Ngo
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Maciej Pietrzak
- Mathematical Biosciences Institute, Ohio State University, Columbus, OH, USA
| | - Piotr Kraj
- Department of Biological Sciences, Old Dominion University, Norfolk, VA, USA
| | - Timothy L Denning
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Leszek Ignatowicz
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA.
| |
Collapse
|
2
|
Kuczma MP, Szurek EA, Cebula A, Chassaing B, Jung YJ, Kang SM, Fox JG, Stecher B, Ignatowicz L. Commensal epitopes drive differentiation of colonic T regs. Sci Adv 2020; 6:eaaz3186. [PMID: 32494613 PMCID: PMC7164940 DOI: 10.1126/sciadv.aaz3186] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 01/23/2020] [Indexed: 05/29/2023]
Abstract
The gut microbiome is the largest source of intrinsic non-self-antigens that are continuously sensed by the immune system but typically do not elicit lymphocyte responses. CD4+ T cells are critical to sustain uninterrupted tolerance to microbial antigens and to prevent intestinal inflammation. However, clinical interventions targeting commensal bacteria-specific CD4+ T cells are rare, because only a very limited number of commensal-derived epitopes have been identified. Here, we used a new approach to study epitopes and identify T cell receptors expressed by CD4+Foxp3+ (Treg) cells specific for commensal-derived antigens. Using this approach, we found that antigens from Akkermansia muciniphila reprogram naïve CD4+ T cells to the Treg lineage, expand preexisting microbe specific Tregs, and limit wasting disease in the CD4+ T cell transfer model of colitis. These data suggest that the administration of specific commensal epitopes may help to widen the repertoire of specific Tregs that control intestinal inflammation.
Collapse
Affiliation(s)
- Michal P. Kuczma
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Edyta A. Szurek
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Anna Cebula
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Benoit Chassaing
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
- Center for Inflammation, Immunity and Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
- Neuroscience Institute, Georgia State University, Atlanta, GA, USA
- INSERM U1016, Team “Mucosal microbiota in chronic inflammatory diseases”, Paris, France
- Université de Paris, Paris, France
| | - Yu-Jin Jung
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - Sang-Moo Kang
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| | - James G. Fox
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Bärbel Stecher
- Max-von-Pettenkofer Institute, LMU Munich, Pettenkoferstr. 9a, Munich, Germany
- German Center for Infection Research (DZIF), partner site LMU Munich, Munich, Germany
| | - Leszek Ignatowicz
- Institute for Biomedical Sciences, Georgia State University, Atlanta, GA, USA
| |
Collapse
|
3
|
Kuczma MP, Ding ZC, Li T, Habtetsion T, Chen T, Hao Z, Bryan L, Singh N, Kochenderfer JN, Zhou G. The impact of antibiotic usage on the efficacy of chemoimmunotherapy is contingent on the source of tumor-reactive T cells. Oncotarget 2017; 8:111931-111942. [PMID: 29340102 PMCID: PMC5762370 DOI: 10.18632/oncotarget.22953] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 11/26/2017] [Indexed: 12/11/2022] Open
Abstract
In recent years the combined use of chemotherapy and immunotherapy, collectively termed chemoimmunotherapy, has emerged as a promising treatment option for patients with cancer. Antibiotics are commonly used to reduce infection-related complications in patients undergoing chemotherapy. Intriguingly, accumulating evidence has implicated gut microbiota as a critical determinant of host antitumor immune responses, raising the question as to whether the use of broad-spectrum antibiotics would invariably diminish tumor response to chemoimmunotherapies. We investigated the impact of antibiotics on the therapeutic outcomes of cyclophosphamide (CTX) chemotherapy and adoptive T-cell therapy (ACT) where CTX was used as the host-conditioning regimen in mice. We show that antibiotic prophylaxis dampened the endogenous T cell responses elicited by CTX, and reduced the efficacy of CTX against B-cell lymphoma. In the ACT setting, antibiotics administration impaired the therapeutic effects of adoptively transferred tumor-specific CD4+ T cells in mice with implanted colorectal tumors. In contrast, long-term antibiotic exposure did not affect the efficacy of ACT using CD19-targeting chimeric antigen receptor (CAR) T cells in mice with systemic B-cell lymphoma, although it correlated with prolonged CAR expression and sustained B-cell aplasia. Our study demonstrates that chemoimmunotherapies may have variable reliance on intestinal microbiota for T cell activation and function, and thus have different sensitivities to antibiotic prophylaxis. These findings may have implications for the judicial use of antibiotics in cancer patients receiving chemoimmunotherapies.
Collapse
Affiliation(s)
- Michal P Kuczma
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA.,Current/Present address: Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia, USA
| | - Zhi-Chun Ding
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Tao Li
- Department of Oncology and Surgery, General Hospital of Ningxia Medical University, Yinchuan, Ningxia Province, PR China
| | | | - Tingting Chen
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Zhonglin Hao
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Locke Bryan
- Hematology/Oncology, Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| | - Nagendra Singh
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, Georgia, USA
| | - James N Kochenderfer
- Experimental Transplantation and Immunology Branch, National Cancer Institute, Bethesda, Maryland, USA
| | - Gang Zhou
- Georgia Cancer Center, Augusta University, Augusta, Georgia, USA
| |
Collapse
|