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Pan J, Qu J, Fang W, Zhao L, Zheng W, Zhai L, Tan M, Xu Q, Du Q, Lv W, Sun Y. SHP2-Triggered Endothelial Cell Activation Fuels Estradiol-Independent Endometrial Sterile Inflammation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024:e2403038. [PMID: 39234819 DOI: 10.1002/advs.202403038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 07/30/2024] [Indexed: 09/06/2024]
Abstract
Sterile inflammation occurs in various chronic diseases due to many nonmicrobe factors. Examples include endometrial hyperplasia (EH), endometriosis, endometrial cancer, and breast cancer, which are all sterile inflammation diseases induced by estrogen imbalances. However, how estrogen-induced sterile inflammation regulates EH remains unclear. Here, a single-cell RNA-Seq is used to show that SHP2 upregulation in endometrial endothelial cells promotes their inflammatory activation and subsequent transendothelial macrophage migration. Independent of the initial estrogen stimulation, IL1β and TNFα from macrophages then create a feedforward loop that enhances endothelial cell activation and IGF1 secretion. This endothelial cell-macrophage interaction sustains sterile endometrial inflammation and facilitates epithelial cell proliferation, even after estradiol withdrawal. The bulk RNA-Seq results and phosphoproteomic analysis show that endothelial SHP2 mechanistically enhances RIPK1 activity by dephosphorylating RIPK1Tyr380. This event activates downstream activator protein 1 (AP-1) and instigates the inflammation response. Furthermore, targeting SHP2 using SHP099 (an allosteric inhibitor) or endothelial-specific SHP2 deletion alleviates endothelial cell activation, macrophage infiltration, and EH progression in mice. Collectively, the findings demonstrate that SHP2 mediates the transition of endothelial activation from estradiol-driven acute inflammation to macrophage-amplified chronic inflammation. Targeting sterile inflammation mediated by endothelial cell activation is a promising strategy for nonhormonal intervention in estrogen-related diseases.
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Affiliation(s)
- Jie Pan
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Jiao Qu
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
| | - Wen Fang
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Lixin Zhao
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Wei Zheng
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Linhui Zhai
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Minjia Tan
- Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Qianming Du
- General Clinical Research Center, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, China
- School of Basic Medicine & Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, China
| | - Wen Lv
- Department of Gynecology, Tongde Hospital of Zhejiang Province, 234 Gucui Road, Hangzhou, Zhejiang, 310012, China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology and Nanjing Drum Tower Hospital the Affiliated Hospital of Nanjing University Medical School, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, Jiangsu, 221004, China
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Vardaman D, Ali MA, Bolding C, Tidwell H, Stephens H, Tyrrell DJ. Development of a Spectral Flow Cytometry Analysis Pipeline for High-Dimensional Immune Cell Characterization. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.19.599633. [PMID: 38948780 PMCID: PMC11213029 DOI: 10.1101/2024.06.19.599633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Flow cytometry is a widely used technique for immune cell analysis, offering insights into cell composition and function. Spectral flow cytometry allows for high-dimensional analysis of immune cells, overcoming limitations of conventional flow cytometry. However, analyzing data from large antibody panels can be challenging using traditional bi-axial gating strategies. Here, we present a novel analysis pipeline designed to improve analysis of spectral flow cytometry. We employ this method to identify rare T cell populations in aging. We isolated splenocytes from young (2-3 months) and aged (18-19 months) female mice then stained these with a panel of 20 fluorescently labeled antibodies. Spectral flow cytometry was performed, followed by data processing and analysis using Python within a Jupyter Notebook environment to perform batch correction, unsupervised clustering, dimensionality reduction, and differential expression analysis. Our analysis of 3,776,804 T cells from 11 spleens revealed 34 distinct T cell clusters identified by surface marker expression. We observed significant differences between young and aged mice, with certain clusters enriched in one age group over the other. Naïve, effector memory, and central memory CD8+ and CD4+ T cell subsets exhibited age-associated changes in abundance and marker expression. Additionally, γδ T cell clusters showed differential abundance between age groups. By leveraging high-dimensional analysis methods borrowed from single-cell RNA sequencing analysis, we identified age-related differences in T cell subsets, providing insights into the immune aging process. This approach offers a robust, free, and easily implemented analysis pipeline for spectral flow cytometry data that may facilitate the discovery of novel therapeutic targets for age-related immune dysfunction.
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Affiliation(s)
- Donald Vardaman
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
| | - Md Akkas Ali
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
- Biochemistry and Structural Biology Theme, Graduate Biomedical Sciences, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
| | - Chase Bolding
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
| | - Harrison Tidwell
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
| | - Holly Stephens
- Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
- Immunology Theme, Graduate Biomedical Sciences, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
| | - Daniel J. Tyrrell
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, 35205 USA
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Seyedsadr M, Bang MF, McCarthy EC, Zhang S, Chen HC, Mohebbi M, Hugo W, Whitmire JK, Lechner MG, Su MA. A pathologically expanded, clonal lineage of IL-21-producing CD4+ T cells drives inflammatory neuropathy. J Clin Invest 2024; 134:e178602. [PMID: 39087473 PMCID: PMC11290969 DOI: 10.1172/jci178602] [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: 01/10/2024] [Accepted: 06/04/2024] [Indexed: 08/02/2024] Open
Abstract
Inflammatory neuropathies, which include chronic inflammatory demyelinating polyneuropathy (CIDP) and Guillain Barré syndrome (GBS), result from autoimmune destruction of the PNS and are characterized by progressive weakness and sensory loss. CD4+ T cells play a key role in the autoimmune destruction of the PNS. Yet, key properties of pathogenic CD4+ T cells remain incompletely understood. Here, we used paired single-cell RNA-Seq (scRNA-Seq) and single-cell T cell receptor-sequencing (scTCR-Seq) of peripheral nerves from an inflammatory neuropathy mouse model to identify IL-21-expressing CD4+ T cells that were clonally expanded and multifunctional. These IL-21-expressing CD4+ T cells consisted of 2 transcriptionally distinct expanded cell populations, which expressed genes associated with T follicular helper (Tfh) and T peripheral helper (Tph) cell subsets. Remarkably, TCR clonotypes were shared between these 2 IL-21-expressing cell populations, suggesting a common lineage differentiation pathway. Finally, we demonstrated that IL-21 receptor-KO (IL-21R-KO) mice were protected from neuropathy development and had decreased immune infiltration into peripheral nerves. IL-21 signaling upregulated CXCR6, a chemokine receptor that promotes CD4+ T cell localization in peripheral nerves. Together, these findings point to IL-21 signaling, Tfh/Tph differentiation, and CXCR6-mediated cellular localization as potential therapeutic targets in inflammatory neuropathies.
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Affiliation(s)
| | - Madison F. Bang
- Department of Microbiology, Immunology, and Molecular Genetics and
| | | | - Shirley Zhang
- Department of Microbiology, Immunology, and Molecular Genetics and
| | - Ho-Chung Chen
- Department of Microbiology, Immunology, and Molecular Genetics and
| | - Mahnia Mohebbi
- Department of Microbiology, Immunology, and Molecular Genetics and
| | - Willy Hugo
- Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, California, USA
| | - Jason K. Whitmire
- Department of Genetics, UNC Chapel Hill, Chapel Hill, North Carolina, USA
| | - Melissa G. Lechner
- Department of Medicine, UCLA David Geffen School of Medicine, Los Angeles, California, USA
| | - Maureen A. Su
- Department of Microbiology, Immunology, and Molecular Genetics and
- Department of Pediatrics, UCLA David Geffen School of Medicine, Los Angeles, California, USA
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Wang FT, Wu TQ, Lin Y, Jiao YR, Li JY, Ruan Y, Yin L, Chen CQ. The role of the CXCR6/CXCL16 axis in the pathogenesis of fibrotic disease. Int Immunopharmacol 2024; 132:112015. [PMID: 38608478 DOI: 10.1016/j.intimp.2024.112015] [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: 02/19/2024] [Revised: 03/24/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024]
Abstract
CXC chemokine receptor 6 (CXCR6), a seven-transmembrane domain G-protein-coupled receptor, plays a pivotal regulatory role in inflammation and tissue damage through its interaction with CXC chemokine ligand 16 (CXCL16). This axis is implicated in the pathogenesis of various fibrotic diseases and correlates with clinical parameters that indicate disease severity, activity, and prognosis in organ fibrosis, including afflictions of the liver, kidney, lung, cardiovascular system, skin, and intestines. Soluble CXCL16 (sCXCL16) serves as a chemokine, facilitating the migration and recruitment of CXCR6-expressing cells, while membrane-bound CXCL16 (mCXCL16) functions as a transmembrane protein with adhesion properties, facilitating intercellular interactions by binding to CXCR6. The CXCR6/CXCL16 axis is established to regulate the cycle of damage and repair during chronic inflammation, either through modulating immune cell-mediated intercellular communication or by independently influencing fibroblast homing, proliferation, and activation, with each pathway potentially culminating in the onset and progression of fibrotic diseases. However, clinically exploiting the targeting of the CXCR6/CXCL16 axis requires further elucidation of the intricate chemokine interactions within fibrosis pathogenesis. This review explores the biology of CXCR6/CXCL16, its multifaceted effects contributing to fibrosis in various organs, and the prospective clinical implications of these insights.
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Affiliation(s)
- Fang-Tao Wang
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Tian-Qi Wu
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yin Lin
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yi-Ran Jiao
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Ji-Yuan Li
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Yu Ruan
- Surgery and Anesthesia Center, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Lu Yin
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China
| | - Chun-Qiu Chen
- Diagnostic and Treatment Center for Refractory Diseases of Abdomen Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai 200072, China.
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Qu J, Wu B, Chen L, Wen Z, Fang L, Zheng J, Shen Q, Heng J, Zhou J, Zhou J. CXCR6-positive circulating mucosal-associated invariant T cells can identify patients with non-small cell lung cancer responding to anti-PD-1 immunotherapy. J Exp Clin Cancer Res 2024; 43:134. [PMID: 38698468 PMCID: PMC11067263 DOI: 10.1186/s13046-024-03046-3] [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: 02/19/2024] [Accepted: 04/13/2024] [Indexed: 05/05/2024] Open
Abstract
BACKGROUND Mucosal-associated invariant T (MAIT) cells have been reported to regulate tumor immunity. However, the immune characteristics of MAIT cells in non-small cell lung cancer (NSCLC) and their correlation with the treatment efficacy of immune checkpoint inhibitors (ICIs) remain unclear. PATIENTS AND METHODS In this study, we performed single-cell RNA sequencing (scRNA-seq), flow cytometry, and multiplex immunofluorescence assays to determine the proportion and characteristics of CD8+MAIT cells in patients with metastatic NSCLC who did and did not respond to anti-PD-1 therapy. Survival analyses were employed to determine the effects of MAIT proportion and C-X-C chemokine receptor 6 (CXCR6) expression on the prognosis of patients with advanced NSCLC. RESULTS The proportion of activated and proliferating CD8+MAIT cells were significantly higher in responders-derived peripheral blood mononuclear cells (PBMCs) and lung tissues before anti-PD-1 therapy, with enhanced expression of cytotoxicity-related genes including CCL4, KLRG1, PRF1, NCR3, NKG7, GZMB, and KLRK1. The responders' peripheral and tumor-infiltrating CD8+MAIT cells showed an upregulated CXCR6 expression. Similarly, CXCR6+CD8+MAIT cells from responders showed higher expression of cytotoxicity-related genes, such as CST7, GNLY, KLRG1, NKG7, and PRF1. Patients with ≥15.1% CD8+MAIT cells to CD8+T cells ratio and ≥35.9% CXCR6+CD8+MAIT cells to CD8+MAIT cells ratio in peripheral blood showed better progression-free survival (PFS) after immunotherapy. The role of CD8+MAIT cells in lung cancer immunotherapy was potentially mediated by classical/non-classical monocytes through the CXCL16-CXCR6 axis. CONCLUSION CD8+MAIT cells are a potential predictive biomarker for patients with NSCLC responding to anti-PD-1 therapy. The correlation between CD8+MAIT cells and immunotherapy sensitivity may be ascribed to high CXCR6 expression.
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Affiliation(s)
- Jingjing Qu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
| | - Binggen Wu
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
| | - Lijun Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P.R. China
| | - Zuoshi Wen
- Department of Cardiology, The First Affiliated Hospital, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
| | - Liangjie Fang
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
| | - Jing Zheng
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
| | - Qian Shen
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
| | - Jianfu Heng
- Department of Clinical Pharmaceutical Research Institution, Hunan Cancer Hospital/the Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, 410013, P. R. China.
| | - Jianya Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China.
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China.
| | - Jianying Zhou
- Department of Respiratory Disease, Thoracic Disease Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310003, P. R. China
- The Clinical Research Center for Respiratory Diseases of Zhejiang Province, Hangzhou, Zhejiang, 310003, P. R. China
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Zhang C, Cao X, Zhao L, Ni Z, Du H, Qu J, Zhu J, Sun H, Sun Y, Ouyang Z. Traditional Chinese Medicine Shi-Bi-Man ameliorates psoriasis via inhibiting IL-23/Th17 axis and CXCL16-mediated endothelial activation. Chin Med 2024; 19:38. [PMID: 38429819 PMCID: PMC10905932 DOI: 10.1186/s13020-024-00907-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 02/22/2024] [Indexed: 03/03/2024] Open
Abstract
BACKGROUND Psoriasis is a chronic inflammatory genetic disease, mainly manifesting in the skin. Conventional therapies, such as glucocorticosteroids and corticosteroids, have adverse effects that limit drug use. Hence, it is imperative to identify a new therapeutic strategy that exhibits a favorable safety profile. Shi-Bi-Man (SBM) is a safe herbal supplement sourced from various natural plants, including ginseng, angelica sinensis, polygonum multiflorum, and aloe vera. PURPOSE We aimed to find a potential treatment for psoriasis and investigate the underlying mechanism through which SBM alleviates psoriatic-like skin inflammation in mice. METHODS We investigated the effects of supplementing with SBM through intragastric administration or smear administration in a murine model of imiquimod-induced psoriasis. The changes in body weight and Psoriasis Area and Severity Index (PASI) score were recorded throughout the entire process. Additionally, we used hematoxylin-eosin staining to observe the skin structure and performed single-cell RNA sequencing to explore the underlying mechanism of SBM in influencing the psoriasis-like phenotype. Immunofluorescence was conducted to verify our findings. Furthermore, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) was employed to investigate the impact of Tetrahydroxy stilbene glycoside (TSG) on the expression levels of IL23 in HaCaT cells. RESULTS SBM remarkably alleviated the psoriasis-like phenotype by inhibiting IL-23/Th17 cell axis. Single-cell RNA sequencing analysis revealed a decrease in the expression of Il17 and Il23 in keratinocytes and T cells, concomitant with a reduction in the proportion of Th17 cells. Meanwhile, the activation of endothelial cells was inhibited, accompanied by a decrease in the expression of Cxcl16. In vitro, the addition of TSG to HaCaT cells resulted in significant suppression of IL23 expression stimulated by tumor necrosis factor-alpha (TNF-α).
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Affiliation(s)
- Chenyang Zhang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Xinran Cao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Lixin Zhao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Zitong Ni
- Jinling High School, 169 Zhongshan Road, Nanjing, 210008, China
| | - Haojie Du
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Jiao Qu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Jianxia Zhu
- Shenzhen Sipimo Technology Co., Ltd, Shenzhen, China
| | - Haiyan Sun
- School of Food and Drug, Institute of Marine Biomedicine, Shenzhen Polytechnic University, 7098 Liuxian Avenue, Shenzhen, 518055, Guangdong, China.
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China.
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, 209 Tongshan Road, Xuzhou, 221004, China.
| | - Zijun Ouyang
- School of Food and Drug, Institute of Marine Biomedicine, Shenzhen Polytechnic University, 7098 Liuxian Avenue, Shenzhen, 518055, Guangdong, China.
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Seyedsadr M, Bang M, McCarthy E, Zhang S, Chen HC, Mohebbi M, Hugo W, Whitmire JK, Lechner MG, Su MA. A pathologically expanded, clonal lineage of IL-21 producing CD4+ T cells drives Inflammatory neuropathy. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.07.574553. [PMID: 38260637 PMCID: PMC10802410 DOI: 10.1101/2024.01.07.574553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Inflammatory neuropathies, which include CIDP (chronic inflammatory demyelinating polyneuropathy) and GBS (Guillain Barre Syndrome), result from autoimmune destruction of the peripheral nervous system (PNS) and are characterized by progressive weakness and sensory loss. CD4+ T cells play a key role in the autoimmune destruction of the PNS. Yet, key properties of pathogenic CD4+ T cells remain incompletely understood. Here, we use paired scRNAseq and scTCRseq of peripheral nerves from an inflammatory neuropathy mouse model to identify IL-21 expressing CD4+ T cells that are clonally expanded and multifunctional. These IL-21-expressing CD4+ T cells are comprised of two transcriptionally distinct expanded populations, which express genes associated with Tfh and Tph subsets. Remarkably, TCR clonotypes are shared between these two IL-21-expressing populations, suggesting a common lineage differentiation pathway. Finally, we demonstrate that IL-21 signaling is required for neuropathy development and pathogenic T cell infiltration into peripheral nerves. IL-21 signaling upregulates CXCR6, a chemokine receptor that promotes CD4+ T cell localization in peripheral nerves. Together, these findings point to IL-21 signaling, Tfh/Tph differentiation, and CXCR6-mediated cellular localization as potential therapeutic targets in inflammatory neuropathies.
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Affiliation(s)
- Maryamsadat Seyedsadr
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Madison Bang
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Ethan McCarthy
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Shirley Zhang
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Ho-Chung Chen
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Mahnia Mohebbi
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Willy Hugo
- Department of Medicine, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | | | - Melissa G. Lechner
- Department of Medicine, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
| | - Maureen A. Su
- Department of Microbiology, Immunology, and Molecular Genetics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
- Department of Pediatrics, UCLA David Geffen School of Medicine; Los Angeles, CA 90095
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8
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Bao N, Fu B, Zhong X, Jia S, Ren Z, Wang H, Wang W, Shi H, Li J, Ge F, Chang Q, Gong Y, Liu W, Qiu F, Xu S, Li T. Role of the CXCR6/CXCL16 axis in autoimmune diseases. Int Immunopharmacol 2023; 121:110530. [PMID: 37348231 DOI: 10.1016/j.intimp.2023.110530] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 06/01/2023] [Accepted: 06/15/2023] [Indexed: 06/24/2023]
Abstract
The C-X-C motif ligand 16, or CXCL16, is a chemokine that belongs to the ELR - CXC subfamily. Its function is to bind to the chemokine receptor CXCR6, which is a G protein-coupled receptor with 7 transmembrane domains. The CXCR6/CXCL16 axis has been linked to the development of numerous autoimmune diseases and is connected to clinical parameters that reflect disease severity, activity, and prognosis in conditions such as multiple sclerosis, autoimmune hepatitis, rheumatoid arthritis, Crohn's disease, and psoriasis. CXCL16 is expressed in various immune cells, such as dendritic cells, monocytes, macrophages, and B cells. During autoimmune diseases, CXCL16 can facilitate the adhesion of immune cells like monocytes, T cells, NKT cells, and others to endothelial cells and dendritic cells. Additionally, sCXCL16 can regulate the migration of CXCR6-expressing leukocytes, which includes CD8+ T cells, CD4+ T cells, NK cells, constant natural killer T cells, plasma cells, and monocytes. Further investigation is required to comprehend the intricate interactions between chemokines and the pathogenesis of autoimmune diseases. It remains to be seen whether the CXCR6/CXCL16 axis represents a new target for the treatment of these conditions.
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Affiliation(s)
- Nandi Bao
- Senior Department of Cardiology, The Sixth Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Bo Fu
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Beijing, China; State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Beijing, China
| | - Xiaoling Zhong
- Department of neurology, School of Medicine, South China University of Technology, Guangzhou, China; Department of neurology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing, China
| | - Shuangshuang Jia
- Department of neurology, The Sixth Medical Center of PLA General Hospital of Beijing, Beijing, China; Navy Clinical College, the Fifth School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Zhuangzhuang Ren
- Navy Clinical College, the Fifth School of Clinical Medicine, Anhui Medical University, Hefei, China
| | - Haoran Wang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Beijing, China; State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Beijing, China
| | - Weihua Wang
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Hui Shi
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Jun Li
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Fulin Ge
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Qing Chang
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Yuan Gong
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Wenhui Liu
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Feng Qiu
- Senior Department of Neurology, The First Medical Center of PLA General Hospital, Beijing, China.
| | - Shiping Xu
- Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
| | - Tingting Li
- State Key Laboratory of Kidney Diseases, Chinese PLA General Hospital, Beijing, China; Department of Gastroenterology, The Second Medical Center, Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Geriatric Diseases, Chinese PLA General Hospital, Beijing, China.
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9
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Ying S, Yang H, Gu Q, Wu Z, Zou N, Wang CZ, Wan C, Yuan CS. The Small-Molecule compound baicalein alleviates experimental autoimmune encephalomyelitis by suppressing pathogenetic CXCR6 + CD4 cells. Int Immunopharmacol 2023; 114:109562. [PMID: 36508914 DOI: 10.1016/j.intimp.2022.109562] [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: 10/22/2022] [Revised: 11/26/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
CXC chemokine receptor6 (CXCR6)-based immunotherapy plays a significant role in autoimmune diseases, however, little is known about possible small compounds that inhibit pathogenic CXCR6+ T cells for treating multiple sclerosis (MS). Baicalein, a flavonoid isolated from Scutellarin baicalensis (Huang Qin), was shown to exert therapeutic effects on MS, but the underlying mechanisms are largely unknown. In the current study, we found that baicalein inhibited Th1 and Th17 differentiation in vitro. Oral administration of baicalein (25 mg/kg) significantly reduced the disease severity and the infiltration process, decreased the extent of demyelination in EAE, and selectively blocked IL-17A production and specific antibodies (IgG and IgG3) in MOG35-55-induced specific immune responses. In addition, the expression of CD4 cell effectors (CD44hiCD62Llow) and pathogenic Th17 cells was decreased by baicalein treatment. Furthermore, baicalein treatment largely decreased CXCR6+ CD4 and CD8 cells and prominently inhibited CXCR6+ Th17 cells in EAE. Taken together, the findings of this study suggest for the first time that baicalein may ameliorate EAE by suppressing pathogenetic CXCR6+ CD4 cells.
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Affiliation(s)
- Sai Ying
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Haihao Yang
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Qianlan Gu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Zhao Wu
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Nanting Zou
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China
| | - Chong-Zhi Wang
- Department of Anesthesia & Critical Care, and Tang Center for Herbal Medicine Research, University of Chicago, Chicago, IL 60637, USA
| | - Chunping Wan
- School of Clinical Medicine, School of Pharmacy and School of Basic Medicine, Yunnan University of Traditional Chinese Medicine, Kunming 650021, PR China.
| | - Chun-Su Yuan
- Department of Anesthesia & Critical Care, and Tang Center for Herbal Medicine Research, University of Chicago, Chicago, IL 60637, USA
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10
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Mabrouk N, Tran T, Sam I, Pourmir I, Gruel N, Granier C, Pineau J, Gey A, Kobold S, Fabre E, Tartour E. CXCR6 expressing T cells: Functions and role in the control of tumors. Front Immunol 2022; 13:1022136. [PMID: 36311728 PMCID: PMC9597613 DOI: 10.3389/fimmu.2022.1022136] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Accepted: 09/27/2022] [Indexed: 11/13/2022] Open
Abstract
CXCR6 is a receptor for the chemokine CXCL16, which exists as a membrane or soluble form. CXCR6 is a marker for resident memory T (TRM) cells that plays a role in immunosurveillance through their interaction with epithelial cells. The interaction of CXCR6 with CXCL16 expressed at the membrane of certain subpopulations of intratumor dendritic cells (DC) called DC3, ideally positions these CXCR6+ T cells to receive a proliferation signal from IL-15 also presented by DC3. Mice deficient in cxcr6 or blocking the interaction of CXCR6 with its ligand, experience a poorer control of tumor proliferation by CD8+ T cells, but also by NKT cells especially in the liver. Intranasal vaccination induces CXCL16 production in the lungs and is associated with infiltration by TRM expressing CXCR6, which are then required for the efficacy of anti-tumor vaccination. Therapeutically, the addition of CXCR6 to specific CAR-T cells enhances their intratumoral accumulation and prolongs survival in animal models of pancreatic, ovarian and lung cancer. Finally, CXCR6 is part of immunological signatures that predict response to immunotherapy based on anti-PD-(L)1 in various cancers. In contrast, a protumoral role of CXCR6+T cells has also been reported mainly in Non-alcoholic steatohepatitis (NASH) due to a non-antigen specific mechanism. The targeting and amplification of antigen-specific TRM expressing CXCR6 and its potential use as a biomarker of response to immunotherapy opens new perspectives in cancer treatment.
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Affiliation(s)
| | - Thi Tran
- Université ParisCité, INSERM, PARCC, Paris, France
| | - Ikuan Sam
- Université ParisCité, INSERM, PARCC, Paris, France
| | - Ivan Pourmir
- Université ParisCité, INSERM, PARCC, Paris, France
| | - Nadège Gruel
- Institut Curie, PSL Research University, Department of Translational Research, Paris, France
- INSERM U830, Equipe labellisée LNCC, Siredo Oncology Centre, Institut Curie, Paris, France
| | - Clémence Granier
- Université ParisCité, INSERM, PARCC, Paris, France
- Immunology, APHP, Hôpital Europeen Georges Pompidou and Hôpital Necker, Paris, France
| | - Joséphine Pineau
- Université ParisCité, INSERM, PARCC, Paris, France
- Immunology, APHP, Hôpital Europeen Georges Pompidou and Hôpital Necker, Paris, France
| | - Alain Gey
- Université ParisCité, INSERM, PARCC, Paris, France
- Immunology, APHP, Hôpital Europeen Georges Pompidou and Hôpital Necker, Paris, France
| | - Sebastian Kobold
- Division of Clinical Pharmacology, Department of Medicine IV, Klinikum der Universität München, Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, Munich, Germany
| | - Elizabeth Fabre
- Université ParisCité, INSERM, PARCC, Paris, France
- Lung Oncology Unit, APHP, Hôpital Européen Georges Pompidou, Paris, France
| | - Eric Tartour
- Université ParisCité, INSERM, PARCC, Paris, France
- Immunology, APHP, Hôpital Europeen Georges Pompidou and Hôpital Necker, Paris, France
- Equipe Labellisée Ligue contre le Cancer, Paris, France
- *Correspondence: Eric Tartour,
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