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Gu Q, Yin S, Tong X, Rui F, Zhu Y, Ma X, Huang R, Wu C, Li J. Current research insights into the role of CTLA-4 in hepatitis B virus (HBV) infection. J Viral Hepat 2024. [PMID: 38771314 DOI: 10.1111/jvh.13958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 04/29/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
Chronic hepatitis B virus (HBV) infection is a significant global public health concern, and the clearance of HBV is closely linked to the activity of HBV-specific T cells, which is regulated by various co-suppressor molecules. Cytotoxic T lymphocyte-associated antigen 4 (CTLA-4) is among these co-suppressor molecules which induces T cell exhaustion by competitively inhibiting CD28 and dampening the function of HBV-specific T cells. CTLA-4 also plays a role in the regulation of T helper (Th) cell differentiation and influences cytokine release. In addition, CTLA-4 can impact glucose metabolism in hepatocellular carcinoma through its interaction with T regulatory (Treg) cells. This review aims to provide a comprehensive overview of the existing literature related to the role of CTLA-4 in HBV patients across different subsets of T cells. Additionally, we propose a discussion on the possible mechanisms through which CTLA-4 may contribute to HBV infection, as well as the development of HBV-induced cirrhosis and hepatocellular carcinoma.
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Affiliation(s)
- Qi Gu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Shengxia Yin
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
| | - Xin Tong
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
| | - Fajuan Rui
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Yixuan Zhu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoyan Ma
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
| | - Rui Huang
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
| | - Chao Wu
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jie Li
- Department of Infectious Diseases, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, Jiangsu, China
- Institute of Viruses and Infectious Diseases, Nanjing University, Nanjing, Jiangsu, China
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2
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Zong Y, Deng K, Chong WP. Regulation of Treg cells by cytokine signaling and co-stimulatory molecules. Front Immunol 2024; 15:1387975. [PMID: 38807592 PMCID: PMC11131382 DOI: 10.3389/fimmu.2024.1387975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
CD4+CD25+Foxp3+ regulatory T cells (Tregs), a vital component of the immune system, are responsible for maintaining immune homeostasis and preventing excessive immune responses. This review explores the signaling pathways of the cytokines that regulate Treg cells, including transforming growth factor beta (TGF-β), interleukin (IL)-2, IL-10, and IL-35, which foster the differentiation and enhance the immunosuppressive capabilities of Tregs. It also examines how, conversely, signals mediated by IL-6 and tumor necrosis factor -alpha (TNF-α) can undermine Treg suppressive functions or even drive their reprogramming into effector T cells. The B7 family comprises indispensable co-stimulators for T cell activation. Among its members, this review focuses on the capacity of CTLA-4 and PD-1 to regulate the differentiation, function, and survival of Tregs. As Tregs play an essential role in maintaining immune homeostasis, their dysfunction contributes to the pathogenesis of autoimmune diseases. This review delves into the potential of employing Treg-based immunotherapy for the treatment of autoimmune diseases, transplant rejection, and cancer. By shedding light on these topics, this article aims to enhance our understanding of the regulation of Tregs by cytokines and their therapeutic potential for various pathological conditions.
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Affiliation(s)
- Yuan Zong
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, China
| | - Kaihang Deng
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Wai Po Chong
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
- Institute for Research and Continuing Education, Hong Kong Baptist University, Shenzhen, China
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3
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Wang B, Yu Z, Liu J, Tian Y, Ruan Y, Kong T, Hou M, Yu B, Ling S, Wang D, Chen Y, Xu Y, Deng W, Liang Y. IL-4-induced decrease in both the number and CTLA-4 expression of T reg impairs suppression of Th2 type inflammation in severe atopic dermatitis. J Dermatol Sci 2024; 114:54-63. [PMID: 38556434 DOI: 10.1016/j.jdermsci.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 02/14/2024] [Accepted: 03/21/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Treg plays a pivotal role in the suppression of Th2 cell and the maintenance of immune homeostasis. The precise molecular mechanism underlying the disruption of Treg suppression of Th2 cell and the promotion of Th2 type inflammation in allergic diseases remains elusive. OBJECTIVE This study aims to investigate the molecular mechanism underlying quantitative and functional changes of Treg in AD. METHODS The molecular mechanism was investigated using flow cytometry, mRNA sequencing, co-culture experiments, co-immunoprecipitation, chromatin immunoprecipitation, and bisulfite sequencing in vitro or in AD mice model and patients with AD. RESULTS Increased proportion of Treg was detected in mild and moderate AD. Conversely, characteristic decrease in both the number and CTLA-4 expression of Treg was relevant to serum IL-4 level in severe AD patients, which was verified under a high concentration of IL-4 treatment in vitro. The underlying mechanism is that IL-4/pSTAT6 pathway recruits DNMT1 and HDAC2 to inhibit transcriptional regulation of Foxp3 and CTLA-4 loci. High level of IL-4 impaired the suppression of Treg against Th2 cell differentiation mediated by CTLA-4, and blockade of IL-4Rα signaling in Treg restored Treg number and suppression of Th2 cell in AD model mice and patients with AD. CONCLUSION The number of Treg is relevant to stratification of severity and serum IL-4 level in patients with AD. Abnormal high level of IL-4 epigenetically triggers a decrease in both the number and CTLA-4 expression of Treg. The reduced expression of CTLA-4 on Treg induced by IL-4 impairs suppression of Th2 cell differentiation.
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Affiliation(s)
- Bocheng Wang
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Zhiying Yu
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Jiao Liu
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yuyang Tian
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yijia Ruan
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Tinghui Kong
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Mingjun Hou
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Bihui Yu
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Shiqi Ling
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Di Wang
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yishan Chen
- The First School of Clinical Medicine, Southern Medical University, Guangzhou, China; Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Yingping Xu
- Experimental Research Center, Dermatology Hospital, Southern Medical University, Guangzhou, China
| | - Weiwei Deng
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
| | - Yunsheng Liang
- Department of Dermatology, Dermatology Hospital, Southern Medical University, Guangzhou, China.
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4
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Huang S, Liu D, Han L, Deng J, Wang Z, Jiang J, Zeng L. Decoding the potential role of regulatory T cells in sepsis-induced immunosuppression. Eur J Immunol 2024; 54:e2350730. [PMID: 38430202 DOI: 10.1002/eji.202350730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/03/2024]
Abstract
Sepsis, a multiorgan dysfunction with high incidence and mortality, is caused by an imbalanced host-to-infection immune response. Organ-support therapy improves the early survival rate of sepsis patients. In the long term, those who survive the "cytokine storm" and its secondary damage usually show higher susceptibility to secondary infections and sepsis-induced immunosuppression, in which regulatory T cells (Tregs) are evidenced to play an essential role. However, the potential role and mechanism of Tregs in sepsis-induced immunosuppression remains elusive. In this review, we elucidate the role of different functional subpopulations of Tregs during sepsis and then review the mechanism of sepsis-induced immunosuppression from the aspects of regulatory characteristics, epigenetic modification, and immunometabolism of Tregs. Thoroughly understanding how Tregs impact the immune system during sepsis may shed light on preclinical research and help improve the translational value of sepsis immunotherapy.
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Affiliation(s)
- Siyuan Huang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Di Liu
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Lei Han
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Jin Deng
- Department of Emergency, the Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, China
| | - Zhen Wang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Jianxin Jiang
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
| | - Ling Zeng
- Department of Trauma Medical Center, Daping Hospital, State Key Laboratory of Trauma and Chemical Poisoning, Army Medical University, Chongqing, China
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5
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Lin CI, Wang YW, Liu CY, Chen HW, Liang PH, Chuang YH. Regulatory T cells in inflamed liver are dysfunctional in murine primary biliary cholangitis. Clin Exp Immunol 2024; 215:225-239. [PMID: 37916967 PMCID: PMC10876115 DOI: 10.1093/cei/uxad117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 11/03/2023] Open
Abstract
Primary biliary cholangitis (PBC) is a chronic autoimmune disease characterized by immune-mediated destruction of intrahepatic small bile ducts. CD8 T cells play a critical role in biliary destruction. However, regulatory T cells (Tregs) have also been identified in the portal tracts of PBC patients. This study tested the hypothesis that hepatic Tregs in PBC were dysfunctional in suppressing immune responses in disease by using our human PBC-like autoimmune cholangitis (AIC) mouse model induced by 2-octynoic acid-conjugated ovalbumin (2-OA-OVA). Our results showed that female and male mice immunized with 2-OA-OVA developed AIC; however, female AIC mice had more severe liver inflammation and fibrosis than male AIC mice. Levels of functional effector CD8 T cells and their chemoattractants, CXCL9 and CXCL10, in the liver were markedly elevated in female AIC mice than in male AIC mice. These results reinforce that CD8 T cells are the primary effector cells in PBC. The number of hepatic Tregs in AIC mice was also higher than in saline-treated mice, but there was no difference between male and female AIC mice. The suppressive function of AIC Tregs was evident despite a discrepancy in the changes in their co-inhibitory receptors and inhibitory cytokines. However, the expansion of hepatic Tregs by low-dose IL-2 treatment did not reduce immune responses to AIC, which may be due to the dysfunction of Tregs in inhibiting T cells. In conclusion, the function of Tregs in the inflamed liver of PBC was insufficient, and low-dose IL-2 treatment could not restore their function to suppress pathological immune responses. Transferring normal Tregs or directly targeting effector CD8 T cells may be beneficial for treating PBC.
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Affiliation(s)
- Chia-I Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yu-Wen Wang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chih-Yu Liu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Hung-Wen Chen
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Pi-Hui Liang
- School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ya-Hui Chuang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan
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6
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Burke KP, Chaudhri A, Freeman GJ, Sharpe AH. The B7:CD28 family and friends: Unraveling coinhibitory interactions. Immunity 2024; 57:223-244. [PMID: 38354702 PMCID: PMC10889489 DOI: 10.1016/j.immuni.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/17/2024] [Accepted: 01/17/2024] [Indexed: 02/16/2024]
Abstract
Immune responses must be tightly regulated to ensure both optimal protective immunity and tolerance. Costimulatory pathways within the B7:CD28 family provide essential signals for optimal T cell activation and clonal expansion. They provide crucial inhibitory signals that maintain immune homeostasis, control resolution of inflammation, regulate host defense, and promote tolerance to prevent autoimmunity. Tumors and chronic pathogens can exploit these pathways to evade eradication by the immune system. Advances in understanding B7:CD28 pathways have ushered in a new era of immunotherapy with effective drugs to treat cancer, autoimmune diseases, infectious diseases, and transplant rejection. Here, we discuss current understanding of the mechanisms underlying the coinhibitory functions of CTLA-4, PD-1, PD-L1:B7-1 and PD-L2:RGMb interactions and less studied B7 family members, including HHLA2, VISTA, BTNL2, and BTN3A1, as well as their overlapping and unique roles in regulating immune responses, and the therapeutic potential of these insights.
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Affiliation(s)
- Kelly P Burke
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02115, USA; Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Apoorvi Chaudhri
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02115, USA
| | - Gordon J Freeman
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, MA 02115, USA
| | - Arlene H Sharpe
- Department of Immunology, Harvard Medical School, Boston, MA 02115, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA; Brigham and Women's Hospital, Boston, MA 02115, USA.
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7
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Babamohamadi M, Mohammadi N, Faryadi E, Haddadi M, Merati A, Ghobadinezhad F, Amirian R, Izadi Z, Hadjati J. Anti-CTLA-4 nanobody as a promising approach in cancer immunotherapy. Cell Death Dis 2024; 15:17. [PMID: 38191571 PMCID: PMC10774412 DOI: 10.1038/s41419-023-06391-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/25/2023] [Accepted: 12/13/2023] [Indexed: 01/10/2024]
Abstract
Cancer is one of the most common diseases and causes of death worldwide. Since common treatment approaches do not yield acceptable results in many patients, developing innovative strategies for effective treatment is necessary. Immunotherapy is one of the promising approaches that has been highly regarded for preventing tumor recurrence and new metastases. Meanwhile, inhibiting immune checkpoints is one of the most attractive methods of cancer immunotherapy. Cytotoxic T lymphocyte-associated protein-4 (CTLA-4) is an essential immune molecule that plays a vital role in cell cycle modulation, regulation of T cell proliferation, and cytokine production. This molecule is classically expressed by stimulated T cells. Inhibition of overexpression of immune checkpoints such as CTLA-4 receptors has been confirmed as an effective strategy. In cancer immunotherapy, immune checkpoint-blocking drugs can be enhanced with nanobodies that target immune checkpoint molecules. Nanobodies are derived from the variable domain of heavy antibody chains. These small protein fragments have evolved entirely without a light chain and can be used as a powerful tool in imaging and treating diseases with their unique structure. They have a low molecular weight, which makes them smaller than conventional antibodies while still being able to bind to specific antigens. In addition to low molecular weight, specific binding to targets, resistance to temperature, pH, and enzymes, high ability to penetrate tumor tissues, and low toxicity make nanobodies an ideal approach to overcome the disadvantages of monoclonal antibody-based immunotherapy. In this article, while reviewing the cellular and molecular functions of CTLA-4, the structure and mechanisms of nanobodies' activity, and their delivery methods, we will explain the advantages and challenges of using nanobodies, emphasizing immunotherapy treatments based on anti-CTLA-4 nanobodies.
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Affiliation(s)
- Mehregan Babamohamadi
- Department of Biology, School of Natural Sciences, University of Tabriz, Tabriz, Iran
- Stem Cell and Regenerative Medicine Innovation Center, Tehran University of Medical Sciences, Tehran, Iran
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Nastaran Mohammadi
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Elham Faryadi
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Maryam Haddadi
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Amirhossein Merati
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Department of Medical Laboratory Sciences, School of Paramedical, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Farbod Ghobadinezhad
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Roshanak Amirian
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Student Research Committee, Kermanshah University of Medical Sciences, Kermanshah, Iran
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Zhila Izadi
- USERN Office, Kermanshah University of Medical Sciences, Kermanshah, Iran.
- Pharmaceutical Sciences Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Jamshid Hadjati
- Department of Immunology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
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8
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Rastin F, Javid H, Oryani MA, Rezagholinejad N, Afshari AR, Karimi-Shahri M. Immunotherapy for colorectal cancer: Rational strategies and novel therapeutic progress. Int Immunopharmacol 2024; 126:111055. [PMID: 37992445 DOI: 10.1016/j.intimp.2023.111055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 09/30/2023] [Accepted: 10/09/2023] [Indexed: 11/24/2023]
Abstract
There are increasing incidences and mortality rates for colorectal cancer in the world. It is common for chemotherapy and radiation given to patients with colorectal cancer to cause toxicities that limit their effectiveness and cause cancer cells to become resistant to these treatments. Additional targeted treatments are needed to improve patient's quality of life and outcomes. Immunotherapy has rapidly emerged as an incredibly exciting and promising avenue for cancer treatment in recent years. This innovative approach provides novel options for tackling solid tumors, effectively establishing itself as a new cornerstone in cancer treatment. Specifically, in the realm of colorectal cancer (CRC), there is great promise in developing new drugs that target immune checkpoints, offering a hopeful and potentially transformative solution. While immunotherapy of CRC has made significant advances, there are still obstacles and limitations. CRC patients have a poor response to treatment because of the immune-suppressing function of their tumor microenvironment (TME). In addition to blocking inhibitory immune checkpoints, checkpoint-blocking antibodies may also boost immune responses against tumors. The review summarizes recent advances in immune checkpoint inhibitors (ICIs) for CRC, including CTLA-4, PD-1, PD-L1, LAG-3, and TIM-3.
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Affiliation(s)
- Farangis Rastin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Javid
- Department of Medical Laboratory Sciences, Varastegan Institute for Medical Sciences, Mashhad, Iran; Department of Clinical Biochemistry, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Mahsa Akbari Oryani
- Department of Pathology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Amir-R Afshari
- Department of Physiology and Pharmacology, School of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Mehdi Karimi-Shahri
- Department of Pathology, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pathology, School of Medicine, Gonabad University of Medical Sciences, Gonabad, Iran.
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9
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LaFleur MW, Lemmen AM, Streeter ISL, Nguyen TH, Milling LE, Derosia NM, Hoffman ZM, Gillis JE, Tjokrosurjo Q, Markson SC, Huang AY, Anekal PV, Montero Llopis P, Haining WN, Doench JG, Sharpe AH. X-CHIME enables combinatorial, inducible, lineage-specific and sequential knockout of genes in the immune system. Nat Immunol 2024; 25:178-188. [PMID: 38012416 PMCID: PMC10881062 DOI: 10.1038/s41590-023-01689-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 10/20/2023] [Indexed: 11/29/2023]
Abstract
Annotation of immunologic gene function in vivo typically requires the generation of knockout mice, which is time consuming and low throughput. We previously developed CHimeric IMmune Editing (CHIME), a CRISPR-Cas9 bone marrow delivery system for constitutive, ubiquitous deletion of single genes. Here we describe X-CHIME, four new CHIME-based systems for modular and rapid interrogation of gene function combinatorially (C-CHIME), inducibly (I-CHIME), lineage-specifically (L-CHIME) or sequentially (S-CHIME). We use C-CHIME and S-CHIME to assess the consequences of combined deletion of Ptpn1 and Ptpn2, an embryonic lethal gene pair, in adult mice. We find that constitutive deletion of both PTPN1 and PTPN2 leads to bone marrow hypoplasia and lethality, while inducible deletion after immune development leads to enteritis and lethality. These findings demonstrate that X-CHIME can be used for rapid mechanistic evaluation of genes in distinct in vivo contexts and that PTPN1 and PTPN2 have some functional redundancy important for viability in adult mice.
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Affiliation(s)
- Martin W LaFleur
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ashlyn M Lemmen
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Ivy S L Streeter
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Thao H Nguyen
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Lauren E Milling
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Nicole M Derosia
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Zachary M Hoffman
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Jacob E Gillis
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Qin Tjokrosurjo
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Samuel C Markson
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Amy Y Huang
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA
- Dana-Farber Cancer Institute, Boston, MA, USA
| | | | | | | | - John G Doench
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Arlene H Sharpe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA.
- Gene Lay Institute of Immunology and Inflammation, Brigham and Women's Hospital, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
- Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA, USA.
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10
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Paterson CW, Fay KT, Chen CW, Klingensmith NJ, Gutierrez MB, Liang Z, Coopersmith CM, Ford ML. CTLA-4 Checkpoint Inhibition Improves Sepsis Survival in Alcohol-Exposed Mice. Immunohorizons 2024; 8:74-88. [PMID: 38226924 PMCID: PMC10835704 DOI: 10.4049/immunohorizons.2300060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 12/21/2023] [Indexed: 01/17/2024] Open
Abstract
Chronic alcohol use increases morbidity and mortality in the setting of sepsis. Both chronic alcohol use and sepsis are characterized by immune dysregulation, including overexpression of T cell coinhibitory molecules. We sought to characterize the role of CTLA-4 during sepsis in the setting of chronic alcohol exposure using a murine model of chronic alcohol ingestion followed by cecal ligation and puncture. Results indicated that CTLA-4 expression is increased on CD4+ T cells isolated from alcohol-drinking septic mice as compared with either alcohol-drinking sham controls or water-drinking septic mice. Moreover, checkpoint inhibition of CTLA-4 improved sepsis survival in alcohol-drinking septic mice, but not water-drinking septic mice. Interrogation of the T cell compartments in these animals following pharmacologic CTLA-4 blockade, as well as following conditional Ctla4 deletion in CD4+ T cells, revealed that CTLA-4 deficiency promoted the activation and proliferation of effector regulatory T cells and the generation of conventional effector memory CD4+ T cells. These data highlight an important role for CTLA-4 in mediating mortality during sepsis in the setting of chronic alcohol exposure and may inform future approaches to develop targeted therapies for this patient population.
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Affiliation(s)
- Cameron W. Paterson
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
- Lieutenant, Medical Corps, Naval Reserve Officer Training Corp, United States Navy, Atlanta, GA
| | - Katherine T. Fay
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Ching-Wen Chen
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Nathan J. Klingensmith
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Melissa B. Gutierrez
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Zhe Liang
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Craig M. Coopersmith
- Department of Surgery, Emory Critical Care Center, Emory University School of Medicine, Atlanta GA
| | - Mandy L. Ford
- Department of Surgery, Emory Transplant Center, Emory University School of Medicine, Atlanta GA
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11
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Daei Sorkhabi A, Komijani E, Sarkesh A, Ghaderi Shadbad P, Aghebati-Maleki A, Aghebati-Maleki L. Advances in immune checkpoint-based immunotherapies for multiple sclerosis: rationale and practice. Cell Commun Signal 2023; 21:321. [PMID: 37946301 PMCID: PMC10634124 DOI: 10.1186/s12964-023-01289-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/19/2023] [Indexed: 11/12/2023] Open
Abstract
Beyond the encouraging results and broad clinical applicability of immune checkpoint (ICP) inhibitors in cancer therapy, ICP-based immunotherapies in the context of autoimmune disease, particularly multiple sclerosis (MS), have garnered considerable attention and hold great potential for developing effective therapeutic strategies. Given the well-established immunoregulatory role of ICPs in maintaining a balance between stimulatory and inhibitory signaling pathways to promote immune tolerance to self-antigens, a dysregulated expression pattern of ICPs has been observed in a significant proportion of patients with MS and its animal model called experimental autoimmune encephalomyelitis (EAE), which is associated with autoreactivity towards myelin and neurodegeneration. Consequently, there is a rationale for developing immunotherapeutic strategies to induce inhibitory ICPs while suppressing stimulatory ICPs, including engineering immune cells to overexpress ligands for inhibitory ICP receptors, such as program death-1 (PD-1), or designing fusion proteins, namely abatacept, to bind and inhibit the co-stimulatory pathways involved in overactivated T-cell mediated autoimmunity, and other strategies that will be discussed in-depth in the current review. Video Abstract.
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Affiliation(s)
- Amin Daei Sorkhabi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Erfan Komijani
- Department of Veterinary, Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Aila Sarkesh
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Pedram Ghaderi Shadbad
- Department of Veterinary, Medicine, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Ali Aghebati-Maleki
- Stem Cell Research Center, Tabriz University of Medical Science, Tabriz, Iran
| | - Leili Aghebati-Maleki
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Immunology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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12
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Del Bello A, Treiner E. Immune Checkpoints in Solid Organ Transplantation. BIOLOGY 2023; 12:1358. [PMID: 37887068 PMCID: PMC10604300 DOI: 10.3390/biology12101358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/28/2023]
Abstract
Allogenic graft acceptance is only achieved by life-long immunosuppression, which comes at the cost of significant toxicity. Clinicians face the challenge of adapting the patients' treatments over long periods to lower the risks associated with these toxicities, permanently leveraging the risk of excessive versus insufficient immunosuppression. A major goal and challenge in the field of solid organ transplantation (SOT) is to attain a state of stable immune tolerance specifically towards the grafted organ. The immune system is equipped with a set of inhibitory co-receptors known as immune checkpoints (ICs), which physiologically regulate numerous effector functions. Insufficient regulation through these ICs can lead to autoimmunity and/or immune-mediated toxicity, while excessive expression of ICs induces stable hypo-responsiveness, especially in T cells, a state sometimes referred to as exhaustion. IC blockade has emerged in the last decade as a powerful therapeutic tool against cancer. The opposite action, i.e., subverting IC for the benefit of establishing a state of specific hypo-responsiveness against auto- or allo-antigens, is still in its infancy. In this review, we will summarize the available literature on the role of ICs in SOT and the relevance of ICs with graft acceptance. We will also discuss the possible influence of current immunosuppressive medications on IC functions.
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Affiliation(s)
- Arnaud Del Bello
- Department of Nephrology, University Hospital of Toulouse, 31400 Toulouse, France
- Metabolic and Cardiovascular Research Institute (I2MC), Inserm UMR1297, CEDEX 4, 31432 Toulouse, France
- Faculty of Medicine, University Toulouse III Paul Sabatier, 31062 Toulouse, France
| | - Emmanuel Treiner
- Faculty of Medicine, University Toulouse III Paul Sabatier, 31062 Toulouse, France
- Laboratory of Immunology, University Hospital of Toulouse, 31300 Toulouse, France
- Toulouse Institute for Infectious and Inflammatory Diseases (Infinity), Inserm UMR1291, 31024 Toulouse, France
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13
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Agarwal S, Aznar MA, Rech AJ, Good CR, Kuramitsu S, Da T, Gohil M, Chen L, Hong SJA, Ravikumar P, Rennels AK, Salas-Mckee J, Kong W, Ruella M, Davis MM, Plesa G, Fraietta JA, Porter DL, Young RM, June CH. Deletion of the inhibitory co-receptor CTLA-4 enhances and invigorates chimeric antigen receptor T cells. Immunity 2023; 56:2388-2407.e9. [PMID: 37776850 PMCID: PMC10591801 DOI: 10.1016/j.immuni.2023.09.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 06/08/2023] [Accepted: 09/05/2023] [Indexed: 10/02/2023]
Abstract
Chimeric antigen receptor (CAR) T cell therapy targeting CD19 has achieved tremendous success treating B cell malignancies; however, some patients fail to respond due to poor autologous T cell fitness. To improve response rates, we investigated whether disruption of the co-inhibitory receptors CTLA4 or PD-1 could restore CART function. CRISPR-Cas9-mediated deletion of CTLA4 in preclinical models of leukemia and myeloma improved CAR T cell proliferation and anti-tumor efficacy. Importantly, this effect was specific to CTLA4 and not seen upon deletion of CTLA4 and/or PDCD1 in CAR T cells. Mechanistically, CTLA4 deficiency permitted unopposed CD28 signaling and maintenance of CAR expression on the T cell surface under conditions of high antigen load. In clinical studies, deletion of CTLA4 rescued the function of T cells from patients with leukemia that previously failed CAR T cell treatment. Thus, selective deletion of CTLA4 reinvigorates dysfunctional chronic lymphocytic leukemia (CLL) patient T cells, providing a strategy for increasing patient responses to CAR T cell therapy.
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Affiliation(s)
- Sangya Agarwal
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - M Angela Aznar
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Andrew J Rech
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Charly R Good
- Department Cell and Developmental Biology, Penn Institute of Epigenetics, Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Shunichiro Kuramitsu
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Tong Da
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Mercy Gohil
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Linhui Chen
- Institute for Biomedical Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Seok-Jae Albert Hong
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Pranali Ravikumar
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Austin K Rennels
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - January Salas-Mckee
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Weimin Kong
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Marco Ruella
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Parker Institute of Cancer immunotherapy at University of Pennsylvania, Philadelphia, PA 19104, USA; Division of Hematology/Oncology, Department of Medicine and Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Lymphoma Program, Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Megan M Davis
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Gabriela Plesa
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Joseph A Fraietta
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Parker Institute of Cancer immunotherapy at University of Pennsylvania, Philadelphia, PA 19104, USA
| | - David L Porter
- Division of Hematology/Oncology, Department of Medicine and Abramson Cancer Center, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA
| | - Regina M Young
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Parker Institute of Cancer immunotherapy at University of Pennsylvania, Philadelphia, PA 19104, USA.
| | - Carl H June
- Center for Cellular Immunotherapies, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104, USA; Department of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Parker Institute of Cancer immunotherapy at University of Pennsylvania, Philadelphia, PA 19104, USA; Abramson Cancer Center, University of Pennsylvania, Philadelphia, PA 19104, USA.
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14
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Hossen MM, Ma Y, Yin Z, Xia Y, Du J, Huang JY, Huang JJ, Zou L, Ye Z, Huang Z. Current understanding of CTLA-4: from mechanism to autoimmune diseases. Front Immunol 2023; 14:1198365. [PMID: 37497212 PMCID: PMC10367421 DOI: 10.3389/fimmu.2023.1198365] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Accepted: 06/19/2023] [Indexed: 07/28/2023] Open
Abstract
Autoimmune diseases (ADs) are characterized by the production of autoreactive lymphocytes, immune responses to self-antigens, and inflammation in related tissues and organs. Cytotoxic T-lymphocyte antigen 4 (CTLA-4) is majorly expressed in activated T cells and works as a critical regulator in the inflammatory response. In this review, we first describe the structure, expression, and how the signaling pathways of CTLA-4 participate in reducing effector T-cell activity and enhancing the immunomodulatory ability of regulatory T (Treg) cells to reduce immune response, maintain immune homeostasis, and maintain autoimmune silence. We then focused on the correlation between CTLA-4 and different ADs and how this molecule regulates the immune activity of the diseases and inhibits the onset, progression, and pathology of various ADs. Finally, we summarized the current progress of CTLA-4 as a therapeutic target for various ADs.
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Affiliation(s)
- Md Munnaf Hossen
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
- Department of Immunology, Biological Therapy Institute, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
- Joint Research Laboratory for Rheumatology of Shenzhen University Health Science Center and Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Yanmei Ma
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
- Department of Immunology, Biological Therapy Institute, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
- Joint Research Laboratory for Rheumatology of Shenzhen University Health Science Center and Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Zhihua Yin
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
- Joint Research Laboratory for Rheumatology of Shenzhen University Health Science Center and Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Yuhao Xia
- Department of Immunology, Biological Therapy Institute, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
- Department of Laboratory Medicine, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jing Du
- Department of Laboratory Medicine, Peking University Shenzhen Hospital, Shenzhen, China
| | - Jim Yi Huang
- Department of Psychology, University of Oklahoma, Norman, OK, United States
| | - Jennifer Jin Huang
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, OK, United States
| | - Linghua Zou
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
- Department of Rehabilitation Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Zhizhong Ye
- Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
- Joint Research Laboratory for Rheumatology of Shenzhen University Health Science Center and Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
| | - Zhong Huang
- Department of Immunology, Biological Therapy Institute, Guangdong Provincial Key Laboratory of Regional Immunity and Diseases, Health Science Center, Shenzhen University, Shenzhen, China
- Joint Research Laboratory for Rheumatology of Shenzhen University Health Science Center and Shenzhen Futian Hospital for Rheumatic Diseases, Shenzhen, China
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15
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Ibis B, Aliazis K, Cao C, Yenyuwadee S, Boussiotis VA. Immune-related adverse effects of checkpoint immunotherapy and implications for the treatment of patients with cancer and autoimmune diseases. Front Immunol 2023; 14:1197364. [PMID: 37342323 PMCID: PMC10277501 DOI: 10.3389/fimmu.2023.1197364] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/15/2023] [Indexed: 06/22/2023] Open
Abstract
During the past decade, there has been a revolution in cancer therapeutics by the emergence of antibody-based immunotherapies that modulate immune responses against tumors. These therapies have offered treatment options to patients who are no longer responding to classic anti-cancer therapies. By blocking inhibitory signals mediated by surface receptors that are naturally upregulated during activation of antigen-presenting cells (APC) and T cells, predominantly PD-1 and its ligand PD-L1, as well as CTLA-4, such blocking agents have revolutionized cancer treatment. However, breaking these inhibitory signals cannot be selectively targeted to the tumor microenvironment (TME). Since the physiologic role of these inhibitory receptors, known as immune checkpoints (IC) is to maintain peripheral tolerance by preventing the activation of autoreactive immune cells, IC inhibitors (ICI) induce multiple types of immune-related adverse effects (irAEs). These irAEs, together with the natural properties of ICs as gatekeepers of self-tolerance, have precluded the use of ICI in patients with pre-existing autoimmune diseases (ADs). However, currently accumulating data indicates that ICI might be safely administered to such patients. In this review, we discuss mechanisms of well established and newly recognized irAEs and evolving knowledge from the application of ICI therapies in patients with cancer and pre-existing ADs.
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Affiliation(s)
- Betul Ibis
- Division of Hematology-Oncology Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Konstantinos Aliazis
- Division of Hematology-Oncology Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Carol Cao
- Division of Hematology-Oncology Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
- Harvard College, Cambridge, MA, United States
| | - Sasitorn Yenyuwadee
- Division of Hematology-Oncology Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Vassiliki A. Boussiotis
- Division of Hematology-Oncology Beth Israel Deaconess Medical Center, Boston, MA, United States
- Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA, United States
- Cancer Center, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
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16
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Sun M, Wang X, Zhang N, Wang L, Wang X, Fan W, Li Q, Liu Y, Song M, Guo X. Imbalance of follicular regulatory T (Tfr) cells/follicular helper T (Tfh) cells in adult patients with primary immune thrombocytopenia. Exp Biol Med (Maywood) 2023; 248:959-965. [PMID: 37208911 PMCID: PMC10525409 DOI: 10.1177/15353702231168142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 02/13/2023] [Indexed: 05/21/2023] Open
Abstract
This study is to investigate the role of follicular regulatory T (Tfr) cells/follicular helper T (Tfh) cells imbalance in adult patients with primary immune thrombocytopenia (ITP). Totally, 40 cases of primary ITP patients and 30 healthy controls were enrolled. Blood samples were collected from ITP patients (pre- and post-therapy) and controls. Flow cytometry was used to detect the proportion of Tfr and Tfh cells in peripheral blood. Real-time quantitative polymerase chain reaction (PCR) was performed to detect the mRNA expression levels of FOXP3, BCL-6, and BLIMP-1. Enzyme-linked immunosorbent assay (ELISA) was conducted to detect interleukin (IL)-10 and IL-21 levels. Spearman's correlation was used for correlation analysis. Compared with control, Tfr cell proportion, FOXP3 mRNA, and IL-10 were significantly decreased in the pre-therapy ITP group, but were significantly increased post-therapy. Tfh cell proportion, BCL-6 mRNA, and IL-21 were increased, while BLIMP-1 mRNA was decreased, in the pre-therapy ITP group than the control group. These effects were reversed in the post-therapy ITP group. Moreover, the Tfr/Tfh ratio was decreased in the pre-therapy ITP group than control group, whereas was increased in the post-therapy ITP group than the pre-therapy ITP group. Furthermore, Tfr cell proportion, FOXP3 mRNA, IL-10, and Tfr/Tfh ratio were positively correlated with the platelet count (PLT) in the ITP pre-therapy group. In addition, Tfh cell proportion, BCL-6 mRNA, and IL-21 were negatively correlated with the PLT, while BLIMP-1 mRNA was positively correlated with the PLT. Conclusively, Tfr cell proportion in peripheral blood is decreased and Tfh cell proportion is increased, leading to unbalanced Tfr/Tfh ratio in ITP patients pre-therapy. The imbalance of Tfr/Tfh is recovered post-therapy, suggesting that the Tfr and Tfh cells may be involved in ITP pathogenesis. The abnormal expression of FOXP3, BCL-6, and BLIMP-1 mRNA and the changes in IL-10 and IL-21 levels may be related to the imbalance of Tfr/Tfh.
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Affiliation(s)
- Mingling Sun
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Xiujuan Wang
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Ning Zhang
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Lei Wang
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Xinyou Wang
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Wenxia Fan
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Qinzhi Li
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Ying Liu
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Mengting Song
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
| | - Xinhong Guo
- Hematologic Disease Center, The First Affiliated Hospital of Xinjiang Medical University, Xinjiang Uygur Autonomous Region Research Institute of Hematology, Xinjiang Medical University, Urumqi 830011, China
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17
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Cruz-Morales E, Hart AP, Fossett GM, Laufer TM. Helios + and RORγt + Treg populations are differentially regulated by MHCII, CD28, and ICOS to shape the intestinal Treg pool. Mucosal Immunol 2023; 16:264-274. [PMID: 36935092 DOI: 10.1016/j.mucimm.2023.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 02/21/2023] [Indexed: 03/19/2023]
Abstract
Foxp3+ regulatory T cells (Tregs) are essential for intestinal homeostasis. Tregs in the small intestine include Helios+ thymus-derived Tregs (tTregs) and RORγt+ Tregs that differentiate in the periphery after antigenic stimulation (pTregs). TCR and costimulatory signals sustain Tregs with effector phenotypes, including those in the intestine, but it is unknown if tTregs and pTregs have similar requirements for these pathways. We previously used mice lacking peripheral expression of MHCII to demonstrate that the small intestine sustains tTregs independently of peripheral antigen. Here, we show that the effector phenotype and tissue-resident signature of tTregs are also MHCII-independent. Using this model, we define the distinct costimulatory requirements of intestinal tTregs and pTregs. Helios+ effector tTregs proliferate through CD28 and require neither ICOS nor MHCII for maintenance. In contrast, RORγt+ pTregs use CD28 and ICOS. Notably, the differential costimulatory utilization allows tTregs and pTregs to dynamically respond to perturbations to support a fixed number of intestinal Tregs. This suggests that the environmental regulation of costimulatory ligands might shape the subpopulations of intestinal Tregs and promote effective homeostasis and defense. Our data reveal new complexity in effector Treg biology and costimulatory signaling of tTregs and pTregs and highlight the importance of analyzing both subpopulations.
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Affiliation(s)
- Elisa Cruz-Morales
- Division of Rheumatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Andrew P Hart
- Division of Rheumatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Georgia M Fossett
- Division of Rheumatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Terri M Laufer
- Division of Rheumatology, Department of Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA; Division of Rheumatology, Department of Medicine, Corporal Michael C. Crescenz VA Medical Center, Philadelphia, USA; Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.
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18
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Van Mol P, Donders E, Lambrechts D, Wauters E. Immune checkpoint biology in health & disease: Immune checkpoint biology and autoimmunity in cancer patients. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2023; 382:181-206. [PMID: 38225103 DOI: 10.1016/bs.ircmb.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
Immune checkpoints (ICs) play a central role in maintaining immune homoeostasis. The discovery that tumours use this physiological mechanism to avoid elimination by the immune system, opened up avenues for therapeutic targeting of ICs as a novel way of treating cancer. However, this therapy a new array of autoimmune side effects, termed immune-related adverse events (irAEs). In this narrative review, we first recapitulate the physiological function of ICs that are approved targets for cancer immunotherapy (CTLA-4, PD-(L)1 and LAG-3), as the groundwork to critically discuss current knowledge on irAEs. Specifically, we summarize clinical aspects and examine a molecular classification and predisposing factors of irAEs. Finally, we discuss irAE treatment, particularly emphasizing how molecular knowledge is changing the current treatment paradigm.
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Affiliation(s)
- Pierre Van Mol
- VIB - CCB Laboratory of Translational Genetics, KU Leuven, Leuven, Belgium; Pneumology - Respiratory Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Elena Donders
- VIB - CCB Laboratory of Translational Genetics, KU Leuven, Leuven, Belgium; Pneumology - Respiratory Oncology, University Hospitals Leuven, Leuven, Belgium
| | - Diether Lambrechts
- VIB - CCB Laboratory of Translational Genetics, KU Leuven, Leuven, Belgium
| | - Els Wauters
- Pneumology - Respiratory Oncology, University Hospitals Leuven, Leuven, Belgium.
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19
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Vaddi PK, Osborne DG, Nicklawsky A, Williams NK, Menon DR, Smith D, Mayer J, Reid A, Domenico J, Nguyen GH, Robinson WA, Ziman M, Gao D, Zhai Z, Fujita M. CTLA4 mRNA is downregulated by miR-155 in regulatory T cells, and reduced blood CTLA4 levels are associated with poor prognosis in metastatic melanoma patients. Front Immunol 2023; 14:1173035. [PMID: 37197667 PMCID: PMC10183574 DOI: 10.3389/fimmu.2023.1173035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 04/17/2023] [Indexed: 05/19/2023] Open
Abstract
Cytotoxic T lymphocyte-associated antigen-4 (CTLA-4) is an immune checkpoint expressed in regulatory T (Treg) cells and activated T lymphocytes. Despite its potential as a treatment strategy for melanoma, CTLA-4 inhibition has limited efficacy. Using data from The Cancer Genome Atlas (TCGA) melanoma database and another dataset, we found that decreased CTLA4 mRNA was associated with a poorer prognosis in metastatic melanoma. To investigate further, we measured blood CTLA4 mRNA in 273 whole-blood samples from an Australian cohort and found that it was lower in metastatic melanoma than in healthy controls and associated with worse patient survival. We confirmed these findings using Cox proportional hazards model analysis and another cohort from the US. Fractionated blood analysis revealed that Treg cells were responsible for the downregulated CTLA4 in metastatic melanoma patients, which was confirmed by further analysis of published data showing downregulated CTLA-4 surface protein expression in Treg cells of metastatic melanoma compared to healthy donors. Mechanistically, we found that secretomes from human metastatic melanoma cells downregulate CTLA4 mRNA at the post-transcriptional level through miR-155 while upregulating FOXP3 expression in human Treg cells. Functionally, we demonstrated that CTLA4 expression inhibits the proliferation and suppressive function of human Treg cells. Finally, miR-155 was found to be upregulated in Treg cells from metastatic melanoma patients compared to healthy donors. Our study provides new insights into the underlying mechanisms of reduced CTLA4 expression observed in melanoma patients, demonstrating that post-transcriptional silencing of CTLA4 by miRNA-155 in Treg cells may play a critical role. Since CTLA-4 expression is downregulated in non-responder melanoma patients to anti-PD-1 immunotherapy, targeting miRNA-155 or other factors involved in regulating CTLA4 expression in Treg cells without affecting T cells could be a potential strategy to improve the efficacy of immunotherapy in melanoma. Further research is needed to understand the molecular mechanisms regulating CTLA4 expression in Treg cells and identify potential therapeutic targets for enhancing immune-based therapies.
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Affiliation(s)
- Prasanna Kumar Vaddi
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Douglas Grant Osborne
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Andrew Nicklawsky
- University of Colorado Cancer Center Biostatistics Core, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Nazanin K. Williams
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Dinoop Ravindran Menon
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Derek Smith
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Jonathan Mayer
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Anna Reid
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Joanne Domenico
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Giang Huong Nguyen
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - William A. Robinson
- Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Melanie Ziman
- School of Medical and Health Sciences, Edith Cowan University, Perth, WA, Australia
- School of Biomedical Science, University of Western Australia, Perth, WA, Australia
| | - Dexiang Gao
- University of Colorado Cancer Center Biostatistics Core, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Zili Zhai
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
| | - Mayumi Fujita
- Department of Dermatology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Department of Immunology, University of Colorado Anschutz Medical Campus, Aurora, CO, United States
- Department of Veterans Affairs Medical Center, VA Eastern Colorado Health Care System, Aurora, CO, United States
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20
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Mancuso G, Bechi Genzano C, Fierabracci A, Fousteri G. Type 1 diabetes and inborn errors of immunity: Complete strangers or 2 sides of the same coin? J Allergy Clin Immunol 2023:S0091-6749(23)00427-X. [PMID: 37097271 DOI: 10.1016/j.jaci.2023.03.026] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 03/31/2023] [Accepted: 03/31/2023] [Indexed: 04/26/2023]
Abstract
Type 1 diabetes (T1D) is a polygenic disease and does not follow a mendelian pattern. Inborn errors of immunity (IEIs), on the other hand, are caused by damaging germline variants, suggesting that T1D and IEIs have nothing in common. Some IEIs, resulting from mutations in genes regulating regulatory T-cell homeostasis, are associated with elevated incidence of T1D. The genetic spectrum of IEIs is gradually being unraveled; consequently, molecular pathways underlying human monogenic autoimmunity are being identified. There is an appreciable overlap between some of these pathways and the genetic variants that determine T1D susceptibility, suggesting that after all, IEI and T1D are 2 sides of the same coin. The study of monogenic IEIs with a variable incidence of T1D has the potential to provide crucial insights into the mechanisms leading to T1D. These insights contribute to the definition of T1D endotypes and explain disease heterogeneity. In this review, we discuss the interconnected pathogenic pathways of autoimmunity, β-cell function, and primary immunodeficiency. We also examine the role of environmental factors in disease penetrance as well as the circumstantial evidence of IEI drugs in preventing and curing T1D in individuals with IEIs, suggesting the repositioning of these drugs also for T1D therapy.
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Affiliation(s)
- Gaia Mancuso
- Unit of Immunology, Rheumatology, Allergy and Rare Diseases, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Camillo Bechi Genzano
- Columbia Center for Translational Immunology, Department of Medicine, Columbia University Irving Medical Center, New York, NY
| | | | - Georgia Fousteri
- Diabetes Research Institute, IRCCS Ospedale San Raffaele, Milan, Italy.
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21
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Ware MB, Phillips M, McQuinn C, Zaidi MY, Knochelmann HM, Greene E, Robinson B, Herting CJ, Mace TA, Chen Z, Zhang C, Farren MR, Ruggieri AN, Bowers JS, Shakya R, Farris AB, Young G, Carson WE, El-Rayes B, Paulos CM, Lesinski GB. Dual IL-6 and CTLA-4 blockade regresses pancreatic tumors in a T cell- and CXCR3-dependent manner. JCI Insight 2023; 8:e155006. [PMID: 36881480 PMCID: PMC10243806 DOI: 10.1172/jci.insight.155006] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
This study aimed to enhance antitumor immune responses to pancreatic cancer via Ab-based blockade of IL-6 and cytotoxic T-lymphocyte-associated protein 4 (CTLA-4). Mice bearing s.c. or orthotopic pancreatic tumors were treated with blocking Abs to IL‑6 and/or CTLA-4. In both tumor models, dual IL-6 and CTLA-4 blockade significantly inhibited tumor growth. Additional investigations revealed that dual therapy induced an overwhelming infiltration of T cells into the tumor as well as changes in CD4+ T cell subsets. Dual blockade therapy elicited CD4+ T cells to secrete increased IFN-γ in vitro. Likewise, in vitro stimulation of pancreatic tumor cells with IFN-γ profoundly increased tumor cell production of CXCR3-specific chemokines, even in the presence of IL-6. In vivo blockade of CXCR3 prevented orthotopic tumor regression in the presence of the combination treatment, demonstrating a dependence on the CXCR3 axis for antitumor efficacy. Both CD4+ and CD8+ T cells were required for the antitumor activity of this combination therapy, as their in vivo depletion via Abs impaired outcomes. These data represent the first report to our knowledge of IL-6 and CTLA‑4 blockade as a means to regress pancreatic tumors with defined operative mechanisms of efficacy.
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Affiliation(s)
- Michael Brandon Ware
- Department of Hematology and Medical Oncology
- Department of Surgery, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
| | | | - Christopher McQuinn
- Division of Surgical Oncology, Department of Surgery, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Mohammad Y. Zaidi
- Department of Surgery, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
| | - Hannah M. Knochelmann
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Columbia, South Carolina, USA
| | | | - Brian Robinson
- Department of Pathology, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
| | | | - Thomas A. Mace
- Division of Gastroenterology Hepatology and Nutrition, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Zhengjia Chen
- Department of Biostatistics, Emory University, Atlanta, Georgia, USA
| | - Chao Zhang
- Department of Biostatistics, Emory University, Atlanta, Georgia, USA
| | | | | | - Jacob S. Bowers
- Department of Microbiology and Immunology, Hollings Cancer Center, Medical University of South Carolina, Columbia, South Carolina, USA
| | | | - Alton B. Farris
- Department of Pathology, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
| | - Gregory Young
- Center for Biostatistics, The Ohio State University, Columbus, Ohio, USA
| | - William E. Carson
- Division of Surgical Oncology, Department of Surgery, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | | | - Chrystal M. Paulos
- Department of Surgery, Winship Cancer Institute of Emory University, Atlanta, Georgia, USA
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22
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Abstract
PURPOSE OF REVIEW This review addresses recent progress in our understanding of the role of regulatory T (Treg) cells in enforcing immune tolerance and tissue homeostasis in the lung at steady state and in directing the immune response in asthmatic lung inflammation. RECENT FINDINGS Regulatory T cells regulate the innate and adaptive immune responses at steady state to enforce immune tolerance in lung tissues at steady state and their control of the allergic inflammatory responses induced by allergens. This regulatory function can break down in the context of chronic asthmatic airway inflammation such that the lung tissue Treg cells become skewed towards a pathogenic phenotype that aggravates and perpetuates disease. Subversion of lung tissue Treg cell function involves their upregulation of Notch4 expression, which in turn acts to amplify T helper type 2 and type 17 and innate lymphoid cell type 2 responses in the airways. SUMMARY A dual role for Treg cells has emerged both as immune regulators but also a potential disease effectors in asthma, with implications for disease therapy.
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Affiliation(s)
- Hani Harb
- Institute for Medical Microbiology and Virology, University Hospital Dresden, Technical University Dresden, Germany
| | - Talal A Chatila
- Division of Immunology, Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, USA
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23
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Islam M, Sevak JK, Sharma MK, Jindal A, Vyas AK, Bajpai M, Ramakrishna G, Sarin SK, Trehanpati N. Immune predictors of hepatitis B surface antigen seroconversion in patients with hepatitis B reactivation. Aliment Pharmacol Ther 2023; 57:689-708. [PMID: 36411952 DOI: 10.1111/apt.17306] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/16/2022] [Accepted: 11/03/2022] [Indexed: 11/23/2022]
Abstract
BACKGROUND Hepatitis B surface antigen (HBsAg) seroconversion is sometimes observed in hepatitis B reactivation (rHBV), probably due to immune resetting and differentiation. AIMS To investigate sequential immune differentiation and abrogation of tolerance in patients with rHBV who achieved HBsAg seroconversion. METHODS We included 19 patients with chronic hepatitis B (CHBV; HBV DNA log103-8 ), 67 with rHBV (raised ALT [>5XULN], HBV DNAlog104-8 ) and 10 healthy controls. Immune differentiation, tolerance and functional status of CD4, CD8, T regulatory cells (Tregs), B cells and follicular T helper (Tfh) cells were assessed at baseline and 24 weeks. RESULTS At 24 weeks, 81% rHBV (n = 67) lost HBV DNA and HBeAg (41%), and 12 (19%) lost HBsAg and made anti-HBs titers >10 IU/ml. rHBV patients had higher Th1/17, TEM , Tfh, Tfh1/17, plasma and ATM B cells, and lower Tregs, Th2, Th17 and TEMRA expression. rHBV showed lower PD1, TIM3, LAG3, SLAM and TOX compared to CHBV. There was a significant increase in CD8, CD8EM, Tfh, Tfh1/17 and plasma B cells in seroconverters than non-seroconverters. At 24 weeks, we also observed increased plasma B cell frequency in seroconverters. While non-seroconverters showed higher expression of PD1, TIM3, LAG3, SLAM and TOX on CD4/CD8 T cells, blockade of PD1, TIM3, LAG3 and CTLA4 significantly enhanced IFN-γ, TNF-α, IL-4 and IL-21 expression on CD4/CD8 and Tfh cells in non-seroconverters. CONCLUSIONS Non-seroconverters have increased inhibitory markers on CD4/CD8 T cells. There is a critical play of CD8, Tfh and B cells and subsets in seroclearance, along with checkpoint molecules as a potential therapy for non-seroconverters in HBV infection.
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Affiliation(s)
- Mojahidul Islam
- Departments of Molecular and Cellular Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Jayesh Kumar Sevak
- Departments of Molecular and Cellular Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Manoj Kumar Sharma
- Department of Hepatology, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Ankur Jindal
- Department of Hepatology, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Ashish Kumar Vyas
- Departments of Molecular and Cellular Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Meenu Bajpai
- Department of Transfusion Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Gayatri Ramakrishna
- Departments of Molecular and Cellular Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Shiv Kumar Sarin
- Department of Hepatology, Institute of Liver & Biliary Sciences, New Delhi, India
| | - Nirupma Trehanpati
- Departments of Molecular and Cellular Medicine, Institute of Liver & Biliary Sciences, New Delhi, India
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24
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Ma R, Su H, Jiao K, Liu J. Role of Th17 cells, Treg cells, and Th17/Treg imbalance in immune homeostasis disorders in patients with chronic obstructive pulmonary disease. Immun Inflamm Dis 2023; 11:e784. [PMID: 36840492 PMCID: PMC9950879 DOI: 10.1002/iid3.784] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 01/21/2023] [Accepted: 01/30/2023] [Indexed: 02/26/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is the third leading cause of death worldwide, following strokes and cardiovascular diseases. Chronic lung inflammation is believed to play a role in the development of COPD. In addition, accumulating evidence shows that the immune system plays a crucial role in the pathogenesis of COPD. Significant advancements have been made in research on the pathogenesis of immune diseases and chronic inflammation in recent years, and T helper 17 (Th17) cells and regulatory T (Treg) cells have been found to play a crucial role in the autoimmune response. Th17 cells are a proinflammatory subpopulation that causes autoimmune disease and tissue damage. Treg cells, on the other hand, have a negative effect but can contribute to the occurrence of the same disease when their antagonism fails. This review mainly summarizes the biological characteristics of Th17 cells and Treg cells, their roles in chronic inflammatory diseases of COPD, and the role of the Th17/Treg ratio in the onset, development, and outcome of inflammatory disorders, as well as recent advancements in immunomodulatory treatment targeting Th17/Treg cells in COPD.
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Affiliation(s)
- Ru Ma
- Department of The First Clinical School of MedicineLanzhou UniversityLanzhouChina,Department of Gansu Provincial People's HospitalLanzhouChina
| | - Hongling Su
- Department of The First Clinical School of MedicineLanzhou UniversityLanzhouChina,Department of Gansu Provincial People's HospitalLanzhouChina
| | - Keping Jiao
- Department of The First Clinical School of MedicineLanzhou UniversityLanzhouChina,Department of Gansu Provincial People's HospitalLanzhouChina
| | - Jian Liu
- Department of The First Clinical School of MedicineLanzhou UniversityLanzhouChina
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25
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APPL1 Is a Prognostic Biomarker and Correlated with Treg Cell Infiltration via Oxygen-Consuming Metabolism in Renal Clear Cell Carcinoma. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2023; 2023:5885203. [PMID: 36846720 PMCID: PMC9957629 DOI: 10.1155/2023/5885203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 11/07/2022] [Accepted: 11/24/2022] [Indexed: 02/19/2023]
Abstract
Kidney renal clear cell carcinoma (KIRC) is one of the most hazardous tumors in the urinary system. The regulation of oxygen consumption in renal clear cell carcinoma is a consequence of adaptive reprogramming of oxidative metabolism in tumor cells. APPL1 is a signaling adaptor involved in cell survival, oxidative stress, inflammation, and energy metabolism. However, the correlation of APPL1 with regulatory T cell (Treg) infiltration and prognostic value in KIRC remain unclear. In this study, we comprehensively predicted the potential function and prognostic value of APPL1 in KIRC. For KIRC patients, relatively low expression of APPL1 was associated with high degree of metastasis, pathological stage, and shorter overall time or poor prognosis. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses suggested that low expression of APPL1 may be adapted to the malignant progression of tumors via affecting oxygen-consuming metabolism. In addition, the expression level of APPL1 was negatively correlated with Treg cell infiltration and chemotherapy sensitivity, which indicated that APPL1 may regulate the tumor immune infiltration and chemotherapy resistance by decrease oxygen-consuming metabolic process in KIRC. Therefore, APPL1 may become one of the important prognostic factors, and it may serve as a candidate prognostic biomarker in KIRC.
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26
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Dikiy S, Rudensky AY. Principles of regulatory T cell function. Immunity 2023; 56:240-255. [PMID: 36792571 DOI: 10.1016/j.immuni.2023.01.004] [Citation(s) in RCA: 52] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 02/16/2023]
Abstract
Regulatory T (Treg) cells represent a distinct lineage of cells of the adaptive immune system indispensable for forestalling fatal autoimmune and inflammatory pathologies. The role of Treg cells as principal guardians of the immune system can be attributed to their ability to restrain all currently recognized major types of inflammatory responses through modulating the activity of a wide range of cells of the innate and adaptive immune system. This broad purview over immunity and inflammation is afforded by the multiple modes of action Treg cells exert upon their diverse molecular and cellular targets. Beyond the suppression of autoimmunity for which they were originally recognized, Treg cells have been implicated in tissue maintenance, repair, and regeneration under physiologic and pathologic conditions. Herein, we discuss the current and emerging understanding of Treg cell effector mechanisms in the context of the basic properties of Treg cells that endow them with such functional versatility.
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Affiliation(s)
- Stanislav Dikiy
- Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute, Ludwig Center at Memorial Sloan Kettering Cancer Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY 10021, USA.
| | - Alexander Y Rudensky
- Howard Hughes Medical Institute and Immunology Program, Sloan Kettering Institute, Ludwig Center at Memorial Sloan Kettering Cancer Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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27
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Watanabe T, Ishino T, Ueda Y, Nagasaki J, Sadahira T, Dansako H, Araki M, Togashi Y. Activated CTLA-4-independent immunosuppression of Treg cells disturbs CTLA-4 blockade-mediated antitumor immunity. Cancer Sci 2023; 114:1859-1870. [PMID: 36762794 PMCID: PMC10154808 DOI: 10.1111/cas.15756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/31/2023] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Combination therapy with anti-cytotoxic T lymphocyte-associated protein 4 (CTLA-4) and anti-programmed death-1 (PD-1) monoclonal antibodies (mAbs) has dramatically improved the prognosis of patients with multiple types of cancer, including renal cell carcinoma (RCC). However, more than half of RCC patients fail to respond to this therapy. Regulatory T cells (Treg cells) are a subset of highly immunosuppressive CD4+ T cells that promote the immune escape of tumors by suppressing effector T cells in the tumor microenvironment (TME) through various mechanisms. CTLA-4 is constitutively expressed in Treg cells and is regarded as a key molecule for Treg-cell-mediated immunosuppressive functions, suppressing antigen-presenting cells by binding to CD80/CD86. Reducing Treg cells in the TME with an anti-CTLA-4 mAb with antibody-dependent cellular cytotoxicity (ADCC) activity is considered an essential mechanism to achieve tumor regression. In contrast, we demonstrated that CTLA-4 blockade without ADCC activity enhanced CD28 costimulatory signaling pathways in Treg cells and promoted Treg-cell proliferation in mouse models. CTLA-4 blockade also augmented CTLA-4-independent immunosuppressive functions, including cytokine production, leading to insufficient antitumor effects. Similar results were also observed in human peripheral blood lymphocytes and tumor-infiltrating lymphocytes from patients with RCC. Our findings highlight the importance of Treg-cell depletion to achieve tumor regression in response to CTLA-4 blockade therapies.
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Affiliation(s)
- Tomofumi Watanabe
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.,Department of Urology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Takamasa Ishino
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.,Department of Gastroenterology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Youki Ueda
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Joji Nagasaki
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan.,Department of Hematology, Graduate School of Medicine, Osaka Metropolitan University, Osaka, Japan
| | - Takuya Sadahira
- Department of Urology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Hiromichi Dansako
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Motoo Araki
- Department of Urology, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
| | - Yosuke Togashi
- Department of Tumor Microenvironment, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama, Japan
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28
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Burke KP, Patterson DG, Liang D, Sharpe AH. Immune checkpoint receptors in autoimmunity. Curr Opin Immunol 2023; 80:102283. [PMID: 36709596 PMCID: PMC10019320 DOI: 10.1016/j.coi.2023.102283] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 01/04/2023] [Indexed: 01/30/2023]
Abstract
Immune checkpoint receptors such as programmed cell death protein 1 (PD-1), cytotoxic T-lymphocyte associated protein 4 (CTLA-4), lymphocyte-activation gene 3 (LAG-3), and T cell immunoglobulin and ITIM domain (TIGIT) have distinct and overlapping inhibitory functions that regulate Tcell activation, differentiation, and function. These inhibitory receptors also mediate tolerance, and dysregulation of these receptors can result in a breach of tolerance and the development of autoimmune syndromes. Similarly, antibody blockade of immune checkpoint receptors or their ligands for cancer immunotherapy may trigger a spectrum of organ inflammation that resembles autoimmunity, termed immune-related adverse events (irAE). In this review, we discuss recent advances in the regulation of autoimmunity by immune checkpoint receptors. We highlight coordinated gene expression programs linking checkpoint receptors, heterogeneity within autoreactive T-cell populations, parallels between irAE and autoimmunity, and bidirectional functional interactions between immune checkpoint receptors and their ligands.
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Affiliation(s)
- Kelly P Burke
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Dillon G Patterson
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Dan Liang
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Arlene H Sharpe
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA; Evergrande Center for Immunological Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, MA, USA; Broad Institute of MIT and Harvard, Cambridge, MA, USA.
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29
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Dutta S, Ganguly A, Chatterjee K, Spada S, Mukherjee S. Targets of Immune Escape Mechanisms in Cancer: Basis for Development and Evolution of Cancer Immune Checkpoint Inhibitors. BIOLOGY 2023; 12:biology12020218. [PMID: 36829496 PMCID: PMC9952779 DOI: 10.3390/biology12020218] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 01/22/2023] [Accepted: 01/27/2023] [Indexed: 02/03/2023]
Abstract
Immune checkpoint blockade (ICB) has emerged as a novel therapeutic tool for cancer therapy in the last decade. Unfortunately, a small number of patients benefit from approved immune checkpoint inhibitors (ICIs). Therefore, multiple studies are being conducted to find new ICIs and combination strategies to improve the current ICIs. In this review, we discuss some approved immune checkpoints, such as PD-L1, PD-1, and CTLA-4, and also highlight newer emerging ICIs. For instance, HLA-E, overexpressed by tumor cells, represents an immune-suppressive feature by binding CD94/NKG2A, on NK and T cells. NKG2A blockade recruits CD8+ T cells and activates NK cells to decrease the tumor burden. NKG2D acts as an NK cell activating receptor that can also be a potential ICI. The adenosine A2A and A2B receptors, CD47-SIRPα, TIM-3, LAG-3, TIGIT, and VISTA are targets that also contribute to cancer immunoresistance and have been considered for clinical trials. Their antitumor immunosuppressive functions can be used to develop blocking antibodies. PARPs, mARTs, and B7-H3 are also other potential targets for immunosuppression. Additionally, miRNA, mRNA, and CRISPR-Cas9-mediated immunotherapeutic approaches are being investigated with great interest. Pre-clinical and clinical studies project these targets as potential immunotherapeutic candidates in different cancer types for their robust antitumor modulation.
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Affiliation(s)
- Shovan Dutta
- The Center for Immunotherapy & Precision Immuno-Oncology (CITI), Lerner Research Institute, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Anirban Ganguly
- Department of Biochemistry, All India Institute of Medical Sciences, Deoghar 814152, India
| | | | - Sheila Spada
- Department of Radiation Oncology, Weill Cornell Medicine, New York, NY 10065, USA
- Correspondence: (S.S.); (S.M.)
| | - Sumit Mukherjee
- Department of Cardiothoracic and Vascular Surgery, Albert Einstein College of Medicine, Bronx, NY 10461, USA
- Correspondence: (S.S.); (S.M.)
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30
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The Immunosuppressive Effect of TNFR2 Expression in the Colorectal Cancer Microenvironment. Biomedicines 2023; 11:biomedicines11010173. [PMID: 36672682 PMCID: PMC9856189 DOI: 10.3390/biomedicines11010173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 01/01/2023] [Accepted: 01/03/2023] [Indexed: 01/12/2023] Open
Abstract
Colorectal cancer (CRC) represents one of the most common causes of death among cancers worldwide. Its incidence has been increasing among the young population. Many risk factors contribute to the development and progression of CRC and about 70% of them are sporadic. The CRC microenvironment is highly heterogeneous and represents a very complex immunosuppressive platform. Many cytokines and their receptors are vital participants in this immunosuppressive microenvironment. Tumor necrosis factors (TNFs) and TNF receptor 2 (TNFR2) are critical players in the development of CRC. TNFR2 was observed to have increased the immunosuppressive activity of CRC cells via regulatory T cells (T regs) and myeloid-derived suppressor cells (MDSC) in the CRC microenvironment. However, the exact mechanism of TNFR2 in regulating the CRC prognosis remains elusive. Here, we discuss the role of TNFR2 in immune escape mechanism of CRC in the immunosuppressive cells, including Tregs and MDSCs, and the complex signaling pathways that facilitate the development of CRC. It is suggested that extensive studies on TNFR2 downstream signaling must be done, since TNFR2 has a high potential to be developed into a therapeutic agent and cancer biomarker in the future.
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Jiang J, Huang H, Chen R, Lin Y, Ling Q. Immunotherapy for hepatocellular carcinoma recurrence after liver transplantation, can we harness the power of immune checkpoint inhibitors? Front Immunol 2023; 14:1092401. [PMID: 36875077 PMCID: PMC9978931 DOI: 10.3389/fimmu.2023.1092401] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 02/03/2023] [Indexed: 02/18/2023] Open
Abstract
Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related death globally and liver transplantation (LT) can serve as the best curative treatment option. However, HCC recurrence after LT remains the major obstacle to the long-term survival of recipients. Recently, immune checkpoint inhibitors (ICIs) have revolutionized the treatment of many cancers and provided a new treatment strategy for post-LT HCC recurrence. Evidence has been accumulated with the real-world application of ICIs in patients with post-LT HCC recurrence. Notably, the use of these agents as immunity boosters in recipients treated with immunosuppressors is still controversial. In this review, we summarized the immunotherapy for post-LT HCC recurrence and conducted an efficacy and safety evaluation based on the current experience of ICIs for post-LT HCC recurrence. In addition, we further discussed the potential mechanism of ICIs and immunosuppressive agents in regulating the balance between immune immunosuppression and lasting anti-tumor immunity.
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Affiliation(s)
- Jingyu Jiang
- Department of Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health Commission (NHC) Key Laboratory of Combined Multi-Organ Transplantation, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Haitao Huang
- Department of Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health Commission (NHC) Key Laboratory of Combined Multi-Organ Transplantation, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Ruihan Chen
- Department of Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health Commission (NHC) Key Laboratory of Combined Multi-Organ Transplantation, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Yimou Lin
- Department of Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health Commission (NHC) Key Laboratory of Combined Multi-Organ Transplantation, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Qi Ling
- Department of Surgery, the First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,National Health Commission (NHC) Key Laboratory of Combined Multi-Organ Transplantation, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, China
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Pereira JA, Lanzar Z, Clark JT, Hart AP, Douglas BB, Shallberg L, O’Dea K, Christian DA, Hunter CA. PD-1 and CTLA-4 exert additive control of effector regulatory T cells at homeostasis. Front Immunol 2023; 14:997376. [PMID: 36960049 PMCID: PMC10028286 DOI: 10.3389/fimmu.2023.997376] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 02/10/2023] [Indexed: 03/09/2023] Open
Abstract
At homeostasis, a substantial proportion of Foxp3+ T regulatory cells (Tregs) have an activated phenotype associated with enhanced TCR signals and these effector Treg cells (eTregs) co-express elevated levels of PD-1 and CTLA-4. Short term in vivo blockade of the PD-1 or CTLA-4 pathways results in increased eTreg populations, while combination blockade of both pathways had an additive effect. Mechanistically, combination blockade resulted in a reduction of suppressive phospho-SHP2 Y580 in eTreg cells which was associated with increased proliferation, enhanced production of IL-10, and reduced dendritic cell and macrophage expression of CD80 and MHC-II. Thus, at homeostasis, PD-1 and CTLA-4 function additively to regulate eTreg function and the ability to target these pathways in Treg cells may be useful to modulate inflammation.
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Affiliation(s)
- Joseph A. Pereira
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
- Department of Immunology, Blavatnik Institute, Harvard Medical School, Boston, MA, United States
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, United States
| | - Zachary Lanzar
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - Joseph T. Clark
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - Andrew P. Hart
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Bonnie B. Douglas
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - Lindsey Shallberg
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - Keenan O’Dea
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - David A. Christian
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
| | - Christopher A. Hunter
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, United States
- *Correspondence: Christopher A. Hunter,
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Abdeladhim M, Karnell JL, Rieder SA. In or out of control: Modulating regulatory T cell homeostasis and function with immune checkpoint pathways. Front Immunol 2022; 13:1033705. [PMID: 36591244 PMCID: PMC9799097 DOI: 10.3389/fimmu.2022.1033705] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 11/16/2022] [Indexed: 12/16/2022] Open
Abstract
Regulatory T cells (Tregs) are the master regulators of immunity and they have been implicated in different disease states such as infection, autoimmunity and cancer. Since their discovery, many studies have focused on understanding Treg development, differentiation, and function. While there are many players in the generation and function of truly suppressive Tregs, the role of checkpoint pathways in these processes have been studied extensively. In this paper, we systematically review the role of different checkpoint pathways in Treg homeostasis and function. We describe how co-stimulatory and co-inhibitory pathways modulate Treg homeostasis and function and highlight data from mouse and human studies. Multiple checkpoint pathways are being targeted in cancer and autoimmunity; therefore, we share insights from the clinic and discuss the effect of experimental and approved therapeutics on Treg biology.
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CTLA-4 on thymic epithelial cells complements Aire for T cell central tolerance. Proc Natl Acad Sci U S A 2022; 119:e2215474119. [PMID: 36409920 PMCID: PMC9860321 DOI: 10.1073/pnas.2215474119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Medullary thymic epithelial cells (mTECs) are essential for the establishment of T cell central tolerance. The transcription factor Aire plays a key role in this process, but other factors remain understudied. We found that a small population of mTECs expressed the coinhibitory receptor cytotoxic T lymphocyte-associated protein 4 (CTLA-4). These CTLA-4+ cells were detectable in perinates, peaked around young adulthood and expanded sixfold in the absence of Aire. Single-cell transcriptomics revealed CTLA-4+ mTECs to express a distinct gene signature encoding molecules associated with antigen presentation and interferon-gamma signaling. Mice conditionally lacking CTLA-4 in thymic epithelial cells had no major immunological deficiencies but displayed a mildly increased inflammatory tone and a partial defect in the generation of Foxp3+CD4+ regulatory T cells. Consequently, these mice developed modest levels of autoantibodies and lymphocytic infiltration of peripheral tissues. Thus, CTLA-4 expression in mTECs complements Aire to establish T cell central tolerance.
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Abstract
Inflammation is a biological process that dynamically alters the surrounding microenvironment, including participating immune cells. As a well-protected organ surrounded by specialized barriers and with immune privilege properties, the central nervous system (CNS) tightly regulates immune responses. Yet in neuroinflammatory conditions, pathogenic immunity can disrupt CNS structure and function. T cells in particular play a key role in promoting and restricting neuroinflammatory responses, while the inflamed CNS microenvironment can influence and reshape T cell function and identity. Still, the contraction of aberrant T cell responses within the CNS is not well understood. Using autoimmunity as a model, here we address the contribution of CD4 T helper (Th) cell subsets in promoting neuropathology and disease. To address the mechanisms antagonizing neuroinflammation, we focus on the control of the immune response by regulatory T cells (Tregs) and describe the counteracting processes that preserve their identity under inflammatory challenges. Finally, given the influence of the local microenvironment on immune regulation, we address how CNS-intrinsic signals reshape T cell function to mitigate abnormal immune T cell responses.
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Affiliation(s)
- Nail Benallegue
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
- Nantes Université, CHU Nantes, INSERM, Center for Research in Transplantation and Translational Immunology, UMR 1064, F-44000, Nantes, France
| | - Hania Kebir
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
| | - Jorge I. Alvarez
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA 19104
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McRitchie BR, Akkaya B. Exhaust the exhausters: Targeting regulatory T cells in the tumor microenvironment. Front Immunol 2022; 13:940052. [PMID: 36248808 PMCID: PMC9562032 DOI: 10.3389/fimmu.2022.940052] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 09/14/2022] [Indexed: 12/14/2022] Open
Abstract
The concept of cancer immunotherapy has gained immense momentum over the recent years. The advancements in checkpoint blockade have led to a notable progress in treating a plethora of cancer types. However, these approaches also appear to have stalled due to factors such as individuals' genetic make-up, resistant tumor sub-types and immune related adverse events (irAE). While the major focus of immunotherapies has largely been alleviating the cell-intrinsic defects of CD8+ T cells in the tumor microenvironment (TME), amending the relationship between tumor specific CD4+ T cells and CD8+ T cells has started driving attention as well. A major roadblock to improve the cross-talk between CD4+ T cells and CD8+ T cells is the immune suppressive action of tumor infiltrating T regulatory (Treg) cells. Despite their indispensable in protecting tissues against autoimmune threats, Tregs have also been under scrutiny for helping tumors thrive. This review addresses how Tregs establish themselves at the TME and suppress anti-tumor immunity. Particularly, we delve into factors that promote Treg migration into tumor tissue and discuss the unique cellular and humoral composition of TME that aids survival, differentiation and function of intratumoral Tregs. Furthermore, we summarize the potential suppression mechanisms used by intratumoral Tregs and discuss ways to target those to ultimately guide new immunotherapies.
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Affiliation(s)
- Bayley R. McRitchie
- Department of Neurology, The College of Medicine, The Ohio State University, Columbus, OH, United States,Pelotonia Institute for Immuno-Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States
| | - Billur Akkaya
- Department of Neurology, The College of Medicine, The Ohio State University, Columbus, OH, United States,Pelotonia Institute for Immuno-Oncology, The James Comprehensive Cancer Center, The Ohio State University, Columbus, OH, United States,Department of Microbial Infection and Immunity, The College of Medicine, The Ohio State University, Columbus, OH, United States,*Correspondence: Billur Akkaya,
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37
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Li R, Li H, Yang X, Hu H, Liu P, Liu H. Crosstalk between dendritic cells and regulatory T cells: Protective effect and therapeutic potential in multiple sclerosis. Front Immunol 2022; 13:970508. [PMID: 36177043 PMCID: PMC9513370 DOI: 10.3389/fimmu.2022.970508] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system related to autoimmunity and is characterized by demyelination, neuroinflammation, and neurodegeneration. Cell therapies mediated by dendritic cells (DCs) and regulatory T cells (Tregs) have gradually become accumulating focusing in MS, and the protective crosstalk mechanisms between DCs and Tregs provide the basis for the efficacy of treatment regimens. In MS and its animal model experimental autoimmune encephalomyelitis, DCs communicate with Tregs to form immune synapses and complete a variety of complex interactions to counteract the unbalanced immune tolerance. Through different co-stimulatory/inhibitory molecules, cytokines, and metabolic enzymes, DCs regulate the proliferation, differentiation and function of Tregs. On the other hand, Tregs inhibit the mature state and antigen presentation ability of DCs, ultimately improving immune tolerance. In this review, we summarized the pivotal immune targets in the interaction between DCs and Tregs, and elucidated the protective mechanisms of DC-Treg cell crosstalk in MS, finally interpreted the complex cell interplay in the manner of inhibitory feedback loops to explore novel therapeutic directions for MS.
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Affiliation(s)
- Ruoyu Li
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hui Li
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoyan Yang
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Huiru Hu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Peidong Liu
- Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Translational Medicine Center, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Hongbo Liu
- Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Translational Medicine Center, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- *Correspondence: Hongbo Liu,
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38
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Metabolic regulation and function of T helper cells in neuroinflammation. Semin Immunopathol 2022; 44:581-598. [PMID: 36068310 DOI: 10.1007/s00281-022-00959-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 07/19/2022] [Indexed: 12/12/2022]
Abstract
Neuroinflammatory conditions such as multiple sclerosis (MS) are initiated by pathogenic immune cells invading the central nervous system (CNS). Autoreactive CD4+ T helper cells are critical players that orchestrate the immune response both in MS and in other neuroinflammatory autoimmune diseases including animal models that have been developed for MS. T helper cells are classically categorized into different subsets, but heterogeneity exists within these subsets. Untangling the more complex regulation of these subsets will clarify their functional roles in neuroinflammation. Here, we will discuss how differentiation, immune checkpoint pathways, transcriptional regulation and metabolic factors determine the function of CD4+ T cell subsets in CNS autoimmunity. T cells rely on metabolic reprogramming for their activation and proliferation to meet bioenergetic demands. This includes changes in glycolysis, glutamine metabolism and polyamine metabolism. Importantly, these pathways were recently also implicated in the fine tuning of T cell fate decisions during neuroinflammation. A particular focus of this review will be on the Th17/Treg balance and intra-subset functional states that can either promote or dampen autoimmune responses in the CNS and thus affect disease outcome. An increased understanding of factors that could tip CD4+ T cell subsets and populations towards an anti-inflammatory phenotype will be critical to better understand neuroinflammatory diseases and pave the way for novel treatment paradigms.
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39
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Kennedy A, Waters E, Rowshanravan B, Hinze C, Williams C, Janman D, Fox TA, Booth C, Pesenacker AM, Halliday N, Soskic B, Kaur S, Qureshi OS, Morris EC, Ikemizu S, Paluch C, Huo J, Davis SJ, Boucrot E, Walker LSK, Sansom DM. Differences in CD80 and CD86 transendocytosis reveal CD86 as a key target for CTLA-4 immune regulation. Nat Immunol 2022; 23:1365-1378. [PMID: 35999394 PMCID: PMC9477731 DOI: 10.1038/s41590-022-01289-w] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 07/15/2022] [Indexed: 01/07/2023]
Abstract
CD28 and CTLA-4 (CD152) play essential roles in regulating T cell immunity, balancing the activation and inhibition of T cell responses, respectively. Although both receptors share the same ligands, CD80 and CD86, the specific requirement for two distinct ligands remains obscure. In the present study, we demonstrate that, although CTLA-4 targets both CD80 and CD86 for destruction via transendocytosis, this process results in separate fates for CTLA-4 itself. In the presence of CD80, CTLA-4 remained ligand bound, and was ubiquitylated and trafficked via late endosomes and lysosomes. In contrast, in the presence of CD86, CTLA-4 detached in a pH-dependent manner and recycled back to the cell surface to permit further transendocytosis. Furthermore, we identified clinically relevant mutations that cause autoimmune disease, which selectively disrupted CD86 transendocytosis, by affecting either CTLA-4 recycling or CD86 binding. These observations provide a rationale for two distinct ligands and show that defects in CTLA-4-mediated transendocytosis of CD86 are associated with autoimmunity.
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Affiliation(s)
- Alan Kennedy
- UCL Institute of Immunity and Transplantation, London, UK
| | - Erin Waters
- UCL Institute of Immunity and Transplantation, London, UK
| | | | - Claudia Hinze
- UCL Institute of Immunity and Transplantation, London, UK
| | | | - Daniel Janman
- UCL Institute of Immunity and Transplantation, London, UK
| | - Thomas A Fox
- UCL Institute of Immunity and Transplantation, London, UK
| | - Claire Booth
- Molecular and Cellular Immunology Section, UCL Great Ormond Street Institute of Child Health, London, UK
| | | | - Neil Halliday
- UCL Institute of Immunity and Transplantation, London, UK
| | - Blagoje Soskic
- UCL Institute of Immunity and Transplantation, London, UK
| | - Satdip Kaur
- School of Immunity and Infection, Institute of Biomedical Research, University of Birmingham Medical School, Birmingham, UK
| | | | - Emma C Morris
- UCL Institute of Immunity and Transplantation, London, UK
| | - Shinji Ikemizu
- Division of Structural Biology, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan
| | - Christopher Paluch
- Medical Research Council Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Jiandong Huo
- Structural Biology, The Rosalind Franklin Institute, Didcot, UK
- Division of Structural Biology, University of Oxford, Oxford, UK
- Wellcome Trust Centre for Human Genetics, Oxford, UK
- Protein Production UK, The Rosalind Franklin Institute-Diamond Light Source, The Research Complex at Harwell, Didcot, UK
| | - Simon J Davis
- Medical Research Council Human Immunology Unit, John Radcliffe Hospital, University of Oxford, Oxford, UK
- Radcliffe Department of Medicine, John Radcliffe Hospital, University of Oxford, Oxford, UK
| | - Emmanuel Boucrot
- Institute of Structural and Molecular Biology, University College London, London, UK
| | | | - David M Sansom
- UCL Institute of Immunity and Transplantation, London, UK.
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Williams C, Kennedy A, Robinson MA, Lloyd C, Dovedi SJ, Sansom DM. Impact of CTLA-4 checkpoint antibodies on ligand binding and Transendocytosis. Front Immunol 2022; 13:871802. [PMID: 36119113 PMCID: PMC9471429 DOI: 10.3389/fimmu.2022.871802] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Anti-CTLA-4 antibodies have pioneered the field of tumour immunotherapy. However, despite impressive clinical response data, the mechanism by which anti-CTLA-4 antibodies work is still controversial. Two major checkpoint antibodies (ipilimumab and tremelimumab) have been trialled clinically. Both have high affinity binding to CTLA-4 and occupy the ligand binding site, however recently it has been suggested that in some settings such antibodies may not block ligand-CTLA-4 interactions. Here we evaluated blocking capabilities of these antibodies in a variety of settings using both soluble and cell bound target proteins. We found that when ligands (CD80 or CD86) were expressed on cells, soluble CTLA-4-Ig bound in line with affinity expectations and that this interaction was effectively disrupted by both ipilimumab and tremelimumab antibodies. Similarly, cellular CTLA-4 binding to soluble ligands was comparably prevented. We further tested the ability of these antibodies to block transendocytosis, whereby CTLA-4 captures ligands from target cells during a cognate cell-cell interaction. Once again ipilimumab and tremelimumab were similar in preventing removal of ligand by transendocytosis. Furthermore, even once transendocytosis was ongoing and cell contact was fully established, the addition of these antibodies could prevent further ligand transfer. Together these data indicate that the above checkpoint inhibitors performed in-line with predictions based on affinity and binding site data and are capable of blocking CTLA-4-ligand interactions in a wide range of settings tested.
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Affiliation(s)
- Cayman Williams
- University College London (UCL) Institute of Immunity and Transplantation, London, United Kingdom
| | - Alan Kennedy
- University College London (UCL) Institute of Immunity and Transplantation, London, United Kingdom
| | - Maximillian A. Robinson
- University College London (UCL) Institute of Immunity and Transplantation, London, United Kingdom
| | | | | | - David M. Sansom
- University College London (UCL) Institute of Immunity and Transplantation, London, United Kingdom
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Kim GR, Choi JM. Current Understanding of Cytotoxic T Lymphocyte Antigen-4 (CTLA-4) Signaling in T-Cell Biology and Disease Therapy. Mol Cells 2022; 45:513-521. [PMID: 35950451 PMCID: PMC9385567 DOI: 10.14348/molcells.2022.2056] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 04/26/2022] [Accepted: 05/02/2022] [Indexed: 12/21/2022] Open
Abstract
Cytotoxic T lymphocyte antigen-4 (CTLA-4) is an immune checkpoint molecule that is mainly expressed on activated T cells and regulatory T (Treg) cells that inhibits T-cell activation and regulates immune homeostasis. Due to the crucial functions of CTLA-4 in T-cell biology, CTLA-4-targeted immunotherapies have been developed for autoimmune disease as well as cancers. CTLA-4 is known to compete with CD28 to interact with B7, but some studies have revealed that its downstream signaling is independent of its ligand interaction. As a signaling domain of CTLA-4, the tyrosine motif plays a role in inhibiting T-cell activation. Recently, the lysine motif has been shown to be required for the function of Treg cells, emphasizing the importance of CTLA-4 signaling. In this review, we summarize the current understanding of CTLA-4 biology and molecular signaling events and discuss strategies to target CTLA-4 signaling for immune modulation and disease therapy.
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Affiliation(s)
- Gil-Ran Kim
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
| | - Je-Min Choi
- Department of Life Science, College of Natural Sciences, Hanyang University, Seoul 04763, Korea
- Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea
- Research Institute for Convergence of Basic Sciences, Hanyang University, Seoul 04763, Korea
- Institute for Rheumatology Research, Hanyang University, Seoul 04763, Korea
- Hanyang Institute of Bioscience and Biotechnology, Hanyang University, Seoul 04763, Korea
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42
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Fonseca Peixoto R, Ewerton Maia Rodrigues C, Henrique de Sousa Palmeira P, Cézar Comberlang Queiroz Davis Dos Santos F, Keesen de Souza Lima T, de Sousa Braz A. Immune hallmarks of rheumatoid arthritis management: A brief review. Cytokine 2022; 158:156007. [PMID: 35985174 DOI: 10.1016/j.cyto.2022.156007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/31/2022] [Accepted: 08/08/2022] [Indexed: 11/17/2022]
Abstract
The purpose of this review was to examine current evidence on immunomodulation mediated by conventional drugs and the use of novel biological agents for the treatment of rheumatoid arthritis (RA). Currently, treatment is focused on maximizing quality of life through sustained clinical remission and/or attenuating disease activity. To do so, disease-modifying antirheumatic drugs, especially methotrexate, are used alone or in combination with other drugs, including leflunomide, biological disease-modifying antirheumatic drugs (bDMARDs) and targeted synthetic disease-modifying antirheumatic drugs (tsDMARDs). The most recent strategies modulate the immune response of the individual RA patient using tsDMARDs such as JAK inhibitors and bDMARDs such as ig-CTLA-4, anti- IL6R, anti-TNF-α and anti-CD20. To better understand current immunopharmacological interventions, we also looked at documented mechanisms of RA-mediated immunomodulation, highlighting perspectives potentially boosting RA treatment.
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Affiliation(s)
- Rephany Fonseca Peixoto
- Laboratory of Immunology of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba 58051-900, Brazil
| | - Carlos Ewerton Maia Rodrigues
- Post‑Graduate Program in Medical Sciences, Medical School, University of Fortaleza (Unifor), Fortaleza, Brazil; Department of Internal Medicine, Federal University of Ceará, Brazil.
| | - Pedro Henrique de Sousa Palmeira
- Laboratory of Immunology of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba 58051-900, Brazil
| | | | - Tatjana Keesen de Souza Lima
- Laboratory of Immunology of Infectious Diseases, Department of Cellular and Molecular Biology, Federal University of Paraiba, João Pessoa, Paraíba 58051-900, Brazil
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43
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Schlöder J, Shahneh F, Schneider FJ, Wieschendorf B. Boosting regulatory T cell function for the treatment of autoimmune diseases – That’s only half the battle! Front Immunol 2022; 13:973813. [PMID: 36032121 PMCID: PMC9400058 DOI: 10.3389/fimmu.2022.973813] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 07/18/2022] [Indexed: 01/04/2023] Open
Abstract
Regulatory T cells (Treg) represent a subset of specialized T cells that are essential for the regulation of immune responses and maintenance of peripheral tolerance. Once activated, Treg exert powerful immunosuppressive properties, for example by inhibiting T cell-mediated immune responses against self-antigens, thereby protecting our body from autoimmunity. Autoimmune diseases such as multiple sclerosis, rheumatoid arthritis or systemic lupus erythematosus, exhibit an immunological imbalance mainly characterized by a reduced frequency and impaired function of Treg. In addition, there has been increasing evidence that – besides Treg dysfunction – immunoregulatory mechanisms fail to control autoreactive T cells due to a reduced responsiveness of T effector cells (Teff) for the suppressive properties of Treg, a process termed Treg resistance. In order to efficiently treat autoimmune diseases and thus fully induce immunological tolerance, a combined therapy aimed at both enhancing Treg function and restoring Teff responsiveness could most likely be beneficial. This review provides an overview of immunomodulating drugs that are currently used to treat various autoimmune diseases in the clinic and have been shown to increase Treg frequency as well as Teff sensitivity to Treg-mediated suppression. Furthermore, we discuss strategies on how to boost Treg activity and function, and their potential use in the treatment of autoimmunity. Finally, we present a humanized mouse model for the preclinical testing of Treg-activating substances in vivo.
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Affiliation(s)
- Janine Schlöder
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
- ActiTrexx GmbH, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
- *Correspondence: Janine Schlöder,
| | - Fatemeh Shahneh
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Franz-Joseph Schneider
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
- ActiTrexx GmbH, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
| | - Björn Wieschendorf
- Department of Dermatology, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
- ActiTrexx GmbH, University Medical Center of the Johannes Gutenberg-University, Mainz, Germany
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Basile MS, Bramanti P, Mazzon E. The Role of Cytotoxic T-Lymphocyte Antigen 4 in the Pathogenesis of Multiple Sclerosis. Genes (Basel) 2022; 13:genes13081319. [PMID: 35893056 PMCID: PMC9394409 DOI: 10.3390/genes13081319] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 02/05/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune neurodegenerative disorder of the central nervous system that presents heterogeneous clinical manifestations and course. It has been shown that different immune checkpoints, including Cytotoxic T-Lymphocyte Antigen 4 (CTLA-4), can be involved in the pathogenesis of MS. CTLA-4 is a critical regulator of T-cell homeostasis and self-tolerance and represents a key inhibitor of autoimmunity. In this scopingreview, we resume the current preclinical and clinical studies investigating the role of CTLA-4 in MS with different approaches. While some of these studies assessed the expression levels of CTLA-4 on T cells by comparing MS patients with healthy controls, others focused on the evaluation of the effects of common MS therapies on CTLA-4 modulation or on the study of the CTLA-4 blockade or deficiency in experimental autoimmune encephalomyelitis models. Moreover, other studies in this field aimed to discover if the CTLA-4 gene might be involved in the predisposition to MS, whereas others evaluated the effects of treatment with CTLA4-Ig in MS. Although these results are of great interest, they are often conflicting. Therefore, further studies are needed to reveal the exact mechanisms underlying the action of a crucial immune checkpoint such as CTLA-4 in MS to identify novel immunotherapeutic strategies for MS patients.
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Chye A, Allen I, Barnet M, Burnett DL. Insights Into the Host Contribution of Endocrine Associated Immune-Related Adverse Events to Immune Checkpoint Inhibition Therapy. Front Oncol 2022; 12:894015. [PMID: 35912205 PMCID: PMC9329613 DOI: 10.3389/fonc.2022.894015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 06/10/2022] [Indexed: 12/12/2022] Open
Abstract
Blockade of immune checkpoints transformed the paradigm of systemic cancer therapy, enabling substitution of a cytotoxic chemotherapy backbone to one of immunostimulation in many settings. Invigorating host immune cells against tumor neo-antigens, however, can induce severe autoimmune toxicity which in many cases requires ongoing management. Many immune-related adverse events (irAEs) are clinically and pathologically indistinguishable from inborn errors of immunity arising from genetic polymorphisms of immune checkpoint genes, suggesting a possible shared driver for both conditions. Many endocrine irAEs, for example, have analogous primary genetic conditions with varied penetrance and severity despite consistent genetic change. This is akin to onset of irAEs in response to immune checkpoint inhibitors (ICIs), which vary in timing, severity and nature despite a consistent drug target. Host contribution to ICI response and irAEs, particularly those of endocrine origin, such as thyroiditis, hypophysitis, adrenalitis and diabetes mellitus, remains poorly defined. Improved understanding of host factors contributing to ICI outcomes is essential for tailoring care to an individual’s unique genetic predisposition to response and toxicity, and are discussed in detail in this review.
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Affiliation(s)
- Adrian Chye
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
- Department of Medical Oncology, The Kinghorn Cancer Centre, Darlinghurst, NSW, Australia
| | - India Allen
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
| | - Megan Barnet
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
- Department of Medical Oncology, The Kinghorn Cancer Centre, Darlinghurst, NSW, Australia
- *Correspondence: Megan Barnet, ; Deborah L. Burnett,
| | - Deborah L. Burnett
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, NSW, Australia
- St Vincent’s Clinical School, Faculty of Medicine, University of New South Wales, Darlinghurst, NSW, Australia
- *Correspondence: Megan Barnet, ; Deborah L. Burnett,
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Tian X, Ning Q, Yu J, Tang S. T-cell immunoglobulin and ITIM domain in cancer immunotherapy: A focus on tumor-infiltrating regulatory T cells. Mol Immunol 2022; 147:62-70. [DOI: 10.1016/j.molimm.2022.04.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 04/06/2022] [Accepted: 04/24/2022] [Indexed: 12/17/2022]
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Pohar J, O'Connor R, Manfroi B, Behi ME, Jouneau L, Boudinot P, Bunse M, Uckert W, Luka M, Ménager M, Liblau R, Anderton SM, Fillatreau S. Antigen receptor-engineered Tregs inhibit CNS autoimmunity in cell therapy using non-redundant immune mechanisms in mice. Eur J Immunol 2022; 52:1335-1349. [PMID: 35579560 PMCID: PMC9542066 DOI: 10.1002/eji.202249845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/28/2022] [Accepted: 05/16/2022] [Indexed: 11/21/2022]
Abstract
CD4+FOXP3+ Tregs are currently explored to develop cell therapies against immune‐mediated disorders, with an increasing focus on antigen receptor‐engineered Tregs. Deciphering their mode of action is necessary to identify the strengths and limits of this approach. Here, we addressed this issue in an autoimmune disease of the CNS, EAE. Following disease induction, autoreactive Tregs upregulated LAG‐3 and CTLA‐4 in LNs, while IL‐10 and amphiregulin (AREG) were increased in CNS Tregs. Using genetic approaches, we demonstrated that IL‐10, CTLA‐4, and LAG‐3 were nonredundantly required for the protective function of antigen receptor‐engineered Tregs against EAE in cell therapy whereas AREG was dispensable. Treg‐derived IL‐10 and CTLA‐4 were both required to suppress acute autoreactive CD4+ T‐cell activation, which correlated with disease control. These molecules also affected the accumulation in the recipients of engineered Tregs themselves, underlying complex roles for these molecules. Noteworthy, despite the persistence of the transferred Tregs and their protective effect, autoreactive T cells eventually accumulated in the spleen of treated mice. In conclusion, this study highlights the remarkable power of antigen receptor‐engineered Tregs to appropriately provide multiple suppressive factors nonredundantly necessary to prevent autoimmune attacks.
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Affiliation(s)
- Jelka Pohar
- Institut Necker Enfants Malades, Institut National de la Santé et de la Recherche Médicale INSERM U1151 - Centre National de la Recherche Scientifique CNRS UMR 8253, 156-160, rue de Vaugirard, Paris, 75015, France
| | | | - Benoît Manfroi
- Institut Necker Enfants Malades, Institut National de la Santé et de la Recherche Médicale INSERM U1151 - Centre National de la Recherche Scientifique CNRS UMR 8253, 156-160, rue de Vaugirard, Paris, 75015, France
| | - Mohamed El Behi
- Institut Necker Enfants Malades, Institut National de la Santé et de la Recherche Médicale INSERM U1151 - Centre National de la Recherche Scientifique CNRS UMR 8253, 156-160, rue de Vaugirard, Paris, 75015, France
| | - Luc Jouneau
- Université Paris-Saclay, INRAE, UVSQ, VIM, Jouy-en-Josas, 78350, France
| | - Pierre Boudinot
- Université Paris-Saclay, INRAE, UVSQ, VIM, Jouy-en-Josas, 78350, France
| | - Mario Bunse
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Wolfgang Uckert
- Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Marine Luka
- Université de Paris, Imagine Institute, Laboratory of Inflammatory Responses and Transcriptomic Networks in Diseases, Atip-Avenir Team, INSERM UMR 1163, Paris, F-75015, France.,Labtech Single-Cell@Imagine, Imagine Institute, INSERM UMR 1163, Paris, F-75015, France
| | - Mickael Ménager
- Université de Paris, Imagine Institute, Laboratory of Inflammatory Responses and Transcriptomic Networks in Diseases, Atip-Avenir Team, INSERM UMR 1163, Paris, F-75015, France.,Labtech Single-Cell@Imagine, Imagine Institute, INSERM UMR 1163, Paris, F-75015, France
| | - Roland Liblau
- Infinity - Institut Toulousain des Maladies Infectieuses et Inflammatoires, NSERM UMR1291 - CNRS UMR5051 - Université Toulouse III, Toulouse, France
| | | | - Simon Fillatreau
- Institut Necker Enfants Malades, Institut National de la Santé et de la Recherche Médicale INSERM U1151 - Centre National de la Recherche Scientifique CNRS UMR 8253, 156-160, rue de Vaugirard, Paris, 75015, France.,Université de Paris, Faculté de Médecine, Paris, France.,AP-HP, Hôpital Necker-Enfants Malades, Paris, France
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Dai X, Li X, Liu Y, Yan F. Recent advances in nanoparticles-based photothermal therapy synergizing with immune checkpoint blockade therapy. MATERIALS & DESIGN 2022; 217:110656. [DOI: 10.1016/j.matdes.2022.110656] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/05/2024]
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49
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Perry JA, Shallberg L, Clark JT, Gullicksrud JA, DeLong JH, Douglas BB, Hart AP, Lanzar Z, O'Dea K, Konradt C, Park J, Kuchroo JR, Grubaugh D, Zaretsky AG, Brodsky IE, Malefyt RDW, Christian DA, Sharpe AH, Hunter CA. PD-L1-PD-1 interactions limit effector regulatory T cell populations at homeostasis and during infection. Nat Immunol 2022; 23:743-756. [PMID: 35437326 PMCID: PMC9106844 DOI: 10.1038/s41590-022-01170-w] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 02/22/2022] [Indexed: 12/12/2022]
Abstract
Phenotypic and transcriptional profiling of regulatory T (Treg) cells at homeostasis reveals that T cell receptor activation promotes Treg cells with an effector phenotype (eTreg) characterized by the production of interleukin-10 and expression of the inhibitory receptor PD-1. At homeostasis, blockade of the PD-1 pathway results in enhanced eTreg cell activity, whereas during infection with Toxoplasma gondii, early interferon-γ upregulates myeloid cell expression of PD-L1 associated with reduced Treg cell populations. In infected mice, blockade of PD-L1, complete deletion of PD-1 or lineage-specific deletion of PD-1 in Treg cells prevents loss of eTreg cells. These interventions resulted in a reduced ratio of pathogen-specific effector T cells: eTreg cells and increased levels of interleukin-10 that mitigated the development of immunopathology, but which could compromise parasite control. Thus, eTreg cell expression of PD-1 acts as a sensor to rapidly tune the pool of eTreg cells at homeostasis and during inflammatory processes.
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Affiliation(s)
- Joseph A Perry
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Lindsey Shallberg
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Joseph T Clark
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Jodi A Gullicksrud
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Jonathan H DeLong
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Bonnie B Douglas
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Andrew P Hart
- Department of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Zachary Lanzar
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Keenan O'Dea
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Christoph Konradt
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
- Purdue University College of Veterinary Medicine, West Lafayette, IN, USA
| | - Jeongho Park
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Juhi R Kuchroo
- Department of Immunology, Harvard Medical School, Boston, MA, USA
| | - Daniel Grubaugh
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Igor E Brodsky
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | | | - David A Christian
- Department of Pathobiology, University of Pennsylvania, Philadelphia, PA, USA
| | - Arlene H Sharpe
- Department of Immunology, Harvard Medical School, Boston, MA, USA
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Gertel S, Polachek A, Elkayam O, Furer V. Lymphocyte activation gene-3 (LAG-3) regulatory T cells: An evolving biomarker for treatment response in autoimmune diseases. Autoimmun Rev 2022; 21:103085. [PMID: 35341974 DOI: 10.1016/j.autrev.2022.103085] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 02/23/2022] [Accepted: 03/23/2022] [Indexed: 11/25/2022]
Abstract
Regulatory T cells (Tregs) comprise a CD4+CD25+Foxp3+ T cell subset for maintaining immune tolerance, and their deficits and/or dysfunction are observed in autoimmune diseases. The lymphocyte activation gene 3 (LAG-3, also known as CD223), which is an immunoglobulin superfamily member expressed on peripheral immune cells, is recognized as an inhibitory regulator of Tregs. LAG-3+ T cells represent a novel protective Tregs subset that produces interleukin-10. Alterations in LAG-3+ Tregs have been reported in several autoimmune diseases, suggesting their potential pathogenic role. Recent studies have indicated that LAG-3+ Tregs may be associated not only with immunopathology but also with response to therapy in several autoimmune and autoinflammatory diseases, such as rheumatoid arthritis, psoriasis, psoriatic arthritis and others. We present a review of Tregs phenotypes and functions, with a focus on LAG-3+ Tregs, and discuss their potential role as biomarkers for treatment response in autoimmune diseases.
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Affiliation(s)
- Smadar Gertel
- Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Ari Polachek
- Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Ori Elkayam
- Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Victoria Furer
- Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel, affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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