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Li X, He J, Gao X, Zheng G, Chen C, Chen Y, Xing Z, Wang T, Tang J, Guo Y, He Y. GPX4 restricts ferroptosis of NKp46 +ILC3s to control intestinal inflammation. Cell Death Dis 2024; 15:687. [PMID: 39300068 PMCID: PMC11413021 DOI: 10.1038/s41419-024-07060-3] [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: 06/19/2024] [Revised: 08/31/2024] [Accepted: 09/05/2024] [Indexed: 09/22/2024]
Abstract
Group 3 innate lymphoid cells (ILC3s) are essential for both pathogen defense and tissue homeostasis in the intestine. Dysfunction of ILC3s could lead to increased susceptibility to intestinal inflammation. However, the precise mechanisms governing the maintenance of intestinal ILC3s are yet to be fully elucidated. Here, we demonstrated that ferroptosis is vital for regulating the survival of intestinal ILC3. Ferroptosis-related genes, including GPX4, a key regulator of ferroptosis, were found to be upregulated in intestinal mucosal ILC3s from ulcerative colitis patients. Deletion of GPX4 resulted in a decrease in NKp46+ILC3 cell numbers, impaired production of IL-22 and IL-17A, and exacerbated intestinal inflammation in a T cell-independent manner. Our mechanistic studies revealed that GPX4-mediated ferroptosis in NKp46+ILC3 cells was regulated by the LCN2-p38-ATF4-xCT signaling pathway. Mice lacking LCN2 in ILC3s or administration of a p38 pathway inhibitor exhibited similar phenotypes of ILC3 and colitis to those observed in GPX4 conditional knock-out mice. These observations provide novel insights into therapeutic strategies for intestinal inflammation by modulating ILC3 ferroptosis.
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Affiliation(s)
- Xinyao Li
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences); Department of Immunology, School of Basic Medical Sciences; Department of Clinical Laboratory, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Junyu He
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Xiang Gao
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Guilang Zheng
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University; Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Chunling Chen
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University; Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yimin Chen
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Zhe Xing
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Tianci Wang
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jian Tang
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yuxiong Guo
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University; Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Yumei He
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences); Department of Immunology, School of Basic Medical Sciences; Department of Clinical Laboratory, The Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China.
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Zhao R, Yang J, Zhai Y, Zhang H, Zhou Y, Hong L, Yuan D, Xia R, Liu Y, Pan J, Shafi S, Shi G, Zhang R, Luo D, Yuan J, Pan D, Peng C, Li S, Sun M. Nucleophosmin 1 promotes mucosal immunity by supporting mitochondrial oxidative phosphorylation and ILC3 activity. Nat Immunol 2024; 25:1565-1579. [PMID: 39103576 PMCID: PMC11362010 DOI: 10.1038/s41590-024-01921-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: 06/12/2023] [Accepted: 07/10/2024] [Indexed: 08/07/2024]
Abstract
Nucleophosmin 1 (NPM1) is commonly mutated in myelodysplastic syndrome (MDS) and acute myeloid leukemia. Concurrent inflammatory bowel diseases (IBD) and MDS are common, indicating a close relationship between IBD and MDS. Here we examined the function of NPM1 in IBD and colitis-associated colorectal cancer (CAC). NPM1 expression was reduced in patients with IBD. Npm1+/- mice were more susceptible to acute colitis and experimentally induced CAC than littermate controls. Npm1 deficiency impaired the function of interleukin-22 (IL-22)-producing group three innate lymphoid cells (ILC3s). Mice lacking Npm1 in ILC3s exhibited decreased IL-22 production and accelerated development of colitis. NPM1 was important for mitochondrial biogenesis and metabolism by oxidative phosphorylation in ILC3s. Further experiments revealed that NPM1 cooperates with p65 to promote mitochondrial transcription factor A (TFAM) transcription in ILC3s. Overexpression of Npm1 in mice enhanced ILC3 function and reduced the severity of dextran sulfate sodium-induced colitis. Thus, our findings indicate that NPM1 in ILC3s protects against IBD by regulating mitochondrial metabolism through a p65-TFAM axis.
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Affiliation(s)
- Rongchuan Zhao
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Jiao Yang
- Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Yunjiao Zhai
- Advanced Medical Research Institute, Shandong University, Jinan, China
| | - Hong Zhang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
| | - Yuanshuai Zhou
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Lei Hong
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Detian Yuan
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, China
| | - Ruilong Xia
- The First Rehabilitation Hospital of Shanghai, Brain and Spinal Cord Innovation Research Center, School of Medicine, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Yanxiang Liu
- Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou, China
| | - Jinlin Pan
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Shaheryar Shafi
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Guohua Shi
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Ruobing Zhang
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China
| | - Dingsan Luo
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
| | - Jinyun Yuan
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China
| | - Dejing Pan
- CAM-SU Genomic Resource Center, Soochow University, Suzhou, China
| | - Changgeng Peng
- The First Rehabilitation Hospital of Shanghai, Brain and Spinal Cord Innovation Research Center, School of Medicine, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China.
- Shanghai Key Laboratory of Anesthesiology and Brain Functional Modulation, Translational Research Institute of Brain and Brain-Like Intelligence, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China.
| | - Shiyang Li
- Advanced Medical Research Institute, Shandong University, Jinan, China.
| | - Minxuan Sun
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou, China.
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, China.
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Su X, Zhao L, Zhang H, Wang D, Sun J, Shen L. Sirtuin 6 inhibits group 3 innate lymphoid cell function and gut immunity by suppressing IL-22 production. Front Immunol 2024; 15:1402834. [PMID: 39253083 PMCID: PMC11381250 DOI: 10.3389/fimmu.2024.1402834] [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: 03/18/2024] [Accepted: 08/08/2024] [Indexed: 09/11/2024] Open
Abstract
Introduction Group 3 innate lymphoid cells (ILC3s) are enriched in the intestinal mucosa and play important roles in host defense against infection and inflammatory diseases. Sirtuin 6 (SIRT6) is a nicotinamide adenine dinucleotide (NAD+)- dependent deacetylase and has been shown to control intestinal epithelial cell differentiation and survival. However, the role of SIRT6 in ILC3s remains unknown. Methods To investigate the role of SIRT6 in gut ILC3s, we generated SIRT6 conditional knockout mice by crossing Rorccre and Sirt6flox/flox mice. Cell number and cytokine production was examined using flow cytometry. Citrobacter rodentium infection and dextran sodium sulfate-induced colitis models were used to determine the role of SIRT6 in gut defense. RT-qPCR, flow cytometry and immunohistochemistry were used to assess the intestinal inflammatory responses. Results Here we show that SIRT6 inhibits IL-22 expression in intestinal ILC3s in a cell-intrinsic manner. Deletion of SIRT6 in ILC3s does not affect the cell numbers of total ILC3s and subsets, but results in increased IL-22 production. Furthermore, ablation of SIRT6 in ILC3s protects mice against Citrobacter rodentium infection and dextran sodium sulfate-induced colitis. Our results suggest that SIRT6 may play a role in ILC3 function by regulating gut immune responses against bacterial infection and inflammation. Discussion Our finding provided insight into the relation of epigenetic regulators with IL-22 production and supplied a new perspective for a potential strategy against inflammatory bowel disease.
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Affiliation(s)
- Xiaohui Su
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Linfeng Zhao
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Huasheng Zhang
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Dongdi Wang
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiping Sun
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lei Shen
- Center for Immune-Related Diseases at Shanghai Institute of Immunology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Immunology and Microbiology, Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Xing Z, Li X, He J, Chen Y, Zhu L, Zhang X, Huang Z, Tang J, Guo Y, He Y. OLFM4 modulates intestinal inflammation by promoting IL-22 +ILC3 in the gut. Commun Biol 2024; 7:914. [PMID: 39075283 PMCID: PMC11286877 DOI: 10.1038/s42003-024-06601-y] [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: 01/21/2024] [Accepted: 07/18/2024] [Indexed: 07/31/2024] Open
Abstract
Group 3 innate lymphoid cells (ILC3s) play key roles in intestinal inflammation. Olfactomedin 4 (OLFM4) is highly expressed in the colon and has a potential role in dextran sodium sulfate-induced colitis. However, the detailed mechanisms underlying the effects of OLFM4 on ILC3-mediated colitis remain unclear. In this study, we identify OLFM4 as a positive regulator of IL-22+ILC3. OLFM4 expression in colonic ILC3s increases substantially during intestinal inflammation in humans and mice. Compared to littermate controls, OLFM4-deficient (OLFM4-/-) mice are more susceptible to bacterial infection and display greater resistance to anti-CD40 induced innate colitis, together with impaired IL-22 production by ILC3, and ILC3s from OLFM4-/-mice are defective in pathogen resistance. Besides, mice with OLFM4 deficiency in the RORγt compartment exhibit the same trend as in OLFM4-/-mice, including colonic inflammation and IL-22 production. Mechanistically, the decrease in IL-22+ILC3 caused by OLFM4 deficiency involves the apoptosis signal-regulating kinase 1 (ASK1)- p38 MAPK signaling-dependent downregulation of RAR-related orphan receptor gamma (RORγt) protein. The OLFM4-metadherin (MTDH) complex upregulates p38/RORγt signaling, which is necessary for IL-22+ILC3 activation. The findings indicate that OLFM4 is a novel regulator of IL-22+ILC3 and essential for modulating intestinal inflammation and tissue homeostasis.
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Affiliation(s)
- Zhe Xing
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences); Department of Immunology, School of Basic Medical Sciences; Department of Clinical Laboratory, the Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China
| | - Xinyao Li
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China
| | - Junyu He
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China
| | - Yimin Chen
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China
| | - Lei Zhu
- Institute of Thoracic Oncology and Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaogang Zhang
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China
| | - Zhengcong Huang
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China
| | - Jian Tang
- Department of Gastroenterology, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Colorectal and Pelvic Floor Diseases, the Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
- Biomedical Innovation Center, The Sixth Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Yuxiong Guo
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University; Guangdong Provincial Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
| | - Yumei He
- Pediatric Intensive Care Unit, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences); Department of Immunology, School of Basic Medical Sciences; Department of Clinical Laboratory, the Third Affiliated Hospital of Southern Medical University, Southern Medical University, Guangzhou, China.
- Department of Immunology; Guangdong Provincial Key Laboratory of Single Cell Technology and Application, School of Basic Medical Sciences; Southern Medical University, Guangzhou, China.
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Tan CY, Jiang D, Theriot BS, Rao MV, Surana NK. A commensal-derived sugar protects against metabolic disease. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.12.598703. [PMID: 38915674 PMCID: PMC11195190 DOI: 10.1101/2024.06.12.598703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Obesity is a worsening global epidemic that is regulated by the microbiota through unknown bacterial factors. We discovered a human-derived commensal bacterium, Clostridium immunis , that protects against metabolic disease by secreting a phosphocholine-modified exopolysaccharide. Genetic interruption of the phosphocholine biosynthesis locus ( licABC ) results in a functionally inactive exopolysaccharide, which demonstrates the critical requirement for this phosphocholine moiety. This C. immunis exopolysaccharide acts via group 3 innate lymphoid cells and modulating IL-22 levels, which results in a reduction in serum triglycerides, body weight, and visceral adiposity. Importantly, phosphocholine biosynthesis genes are less abundant in humans with obesity or hypertriglyceridemia, findings that suggest the role of bacterial phosphocholine is conserved across mice and humans. These results define a bacterial molecule-and its key structural motif-that regulates host metabolism. More broadly, they highlight how small molecules, such as phosphocholine, may help fine-tune microbiome- immune-metabolism interactions.
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Ye Q, Huang S, Wang Y, Chen S, Yang H, Tan W, Wu Z, Wang A, Chen Y. Wogonin improves colitis by activating the AhR pathway to regulate the plasticity of ILC3/ILC1. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 128:155425. [PMID: 38518634 DOI: 10.1016/j.phymed.2024.155425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 01/23/2024] [Accepted: 02/05/2024] [Indexed: 03/24/2024]
Abstract
BACKGROUND Intestinal barrier dysfunction caused by the disrupted balance of group 3 innate lymphoid cells (ILC3)/group 1 innate lymphoid cells (ILC1) is a significant feature in the pathogenesis of inflammatory bowel disease (IBD). Activation of aryl hydrocarbon receptor (AhR) signaling contributes to the maintenance of ILC3/ILC1 balance. Wogonin, a natural flavonoid from Scutellaria baicalensis Georgi, can repair intestinal mucosal damage of IBD. However, it remains unclear if wogonin can exert a therapeutic effect by activating the AhR pathway to regulate the plasticity of ILC3/ILC1. PURPOSE In this study, we investigated the immunomodulatory effects of wogonin on IBD and its potential mechanisms in vitro and in vivo. STUDY DESIGN AND METHODS Chronic colitis was induced by four cycles of 2 % DSS treatment in mice. 20 mg kg-1/day wogonin was administrated by oral gavage and mice were treated intraperitoneally with 10 mg kg-1/2 days CH223191 to block the AhR pathway. Colon tissues were processed for histopathological examination and evaluation of the epithelial barrier function by immunohistochemistry. The activation of the AhR pathway and the plasticity of ILC3/ILC1 were determined by western blot and flow cytometry. Then, we also detected the intestinal microflora and their metabolites by 16 s sequencing and non-targeted Metabolomics analysis. Furthermore, an in vitro culture system consisting of MNK3 cells and NCM460 cells, and a CETSA assay were performed to confirm the molecular mechanism. RESULTS Wogonin ameliorated histological severity of the colon, decreased the secretion of inflammatory factors, and increased tight junction proteins in colitis mice. These effects are associated with the tendency of conversion from ILC3 to ILC1 prevented by wogonin, which was offset by AhR antagonist CH223191. In addition, wogonin exerted the curative effect by altering gut microbiota to produce metabolites such as Kynurenic acid, and 1H-Indole-3-carboxaldehyde as AhR endogenous ligands. In vitro data further verified that wogonin as an exogenous ligand directly binds to the structural domain of AhR by CETSA. Also, the supernatant of MNK-3 cells stimulated with wogonin enhanced expression of Occludin and Claudin1 in NCM460 cells induced by LPS. CONCLUSION Cumulatively, our study illustrated that wogonin improved the outcomes of DSS-induced chronic colitis via regulating the plasticity of ILC3/ILC1. Its specific mechanism is to binding to AhR directly, and to activate the AhR pathway indirectly by altering the tryptophan metabolisms of gut microbiota.
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Affiliation(s)
- Qiujuan Ye
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Shaowei Huang
- Integrative Microecology Clinical Center, Shenzhen Key Laboratory of Gastrointestinal Microbiota and Disease, Shenzhen Clinical Research Center for Digestive Disease, Shenzhen Technology Research Center of Gut Microbiota Transplantation, Shenzhen Hospital, Southern Medical University, Shenzhen, PR China
| | - Ying Wang
- Integrative Microecology Clinical Center, Shenzhen Key Laboratory of Gastrointestinal Microbiota and Disease, Shenzhen Clinical Research Center for Digestive Disease, Shenzhen Technology Research Center of Gut Microbiota Transplantation, Shenzhen Hospital, Southern Medical University, Shenzhen, PR China
| | - Shuze Chen
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Huiping Yang
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Weihao Tan
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Zaoxuan Wu
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China
| | - Anjiang Wang
- Integrative Microecology Clinical Center, Shenzhen Key Laboratory of Gastrointestinal Microbiota and Disease, Shenzhen Clinical Research Center for Digestive Disease, Shenzhen Technology Research Center of Gut Microbiota Transplantation, Shenzhen Hospital, Southern Medical University, Shenzhen, PR China
| | - Ye Chen
- Department of Gastroenterology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, PR China; Integrative Microecology Clinical Center, Shenzhen Key Laboratory of Gastrointestinal Microbiota and Disease, Shenzhen Clinical Research Center for Digestive Disease, Shenzhen Technology Research Center of Gut Microbiota Transplantation, Shenzhen Hospital, Southern Medical University, Shenzhen, PR China.
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7
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Huang S, Xie X, Xu B, Pan Z, Liang J, Zhang M, Pan S, Wang X, Zhao M, Wang Q, Chen J, Li Y, Zhou L, Luo X. Paeoniflorin ameliorates chronic colitis via the DR3 signaling pathway in group 3 innate lymphoid cells. J Pharm Anal 2024; 14:100940. [PMID: 39027912 PMCID: PMC11255901 DOI: 10.1016/j.jpha.2024.01.008] [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: 08/29/2023] [Revised: 01/22/2024] [Accepted: 01/28/2024] [Indexed: 07/20/2024] Open
Abstract
Inhibiting the death receptor 3 (DR3) signaling pathway in group 3 innate lymphoid cells (ILC3s) presents a promising approach for promoting mucosal repair in individuals with ulcerative colitis (UC). Paeoniflorin, a prominent component of Paeonia lactiflora Pall., has demonstrated the ability to restore barrier function in UC mice, but the precise mechanism remains unclear. In this study, we aimed to delve into whether paeoniflorin may promote intestinal mucosal repair in chronic colitis by inhibiting DR3 signaling in ILC3s. C57BL/6 mice were subjected to random allocation into 7 distinct groups, namely the control group, the 2 % dextran sodium sulfate (DSS) group, the paeoniflorin groups (25, 50, and 100 mg/kg), the anti-tumor necrosis factor-like ligand 1A (anti-TL1A) antibody group, and the IgG group. We detected the expression of DR3 signaling pathway proteins and the proportion of ILC3s in the mouse colon using Western blot and flow cytometry, respectively. Meanwhile, DR3-overexpressing MNK-3 cells and 2 % DSS-induced Rag1-/- mice were used for verification. The results showed that paeoniflorin alleviated DSS-induced chronic colitis and repaired the intestinal mucosal barrier. Simultaneously, paeoniflorin inhibited the DR3 signaling pathway in ILC3s and regulated the content of cytokines (Interleukin-17A, Granulocyte-macrophage colony stimulating factor, and Interleukin-22). Alternatively, paeoniflorin directly inhibited the DR3 signaling pathway in ILC3s to repair mucosal damage independently of the adaptive immune system. We additionally confirmed that paeoniflorin-conditioned medium (CM) restored the expression of tight junctions in Caco-2 cells via coculture. In conclusion, paeoniflorin ameliorates chronic colitis by enhancing the intestinal barrier in an ILC3-dependent manner, and its mechanism is associated with the inhibition of the DR3 signaling pathway.
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Affiliation(s)
- Shaowei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Xueqian Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Bo Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Zengfeng Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Junjie Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Meiling Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Simin Pan
- First Clinical Medical College, Guangzhou University of Chinese Medicine, 510000, China
| | - Xiaojing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Meng Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Qing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Jinyan Chen
- School of Basic Medicine, Guangzhou University of Chinese Medicine, 510006, China
| | - Yanyang Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Lian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, 510006, China
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8
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Das A, Martinez-Ruiz GU, Bouladoux N, Stacy A, Moraly J, Vega-Sendino M, Zhao Y, Lavaert M, Ding Y, Morales-Sanchez A, Harly C, Seedhom MO, Chari R, Awasthi P, Ikeuchi T, Wang Y, Zhu J, Moutsopoulos NM, Chen W, Yewdell JW, Shapiro VS, Ruiz S, Taylor N, Belkaid Y, Bhandoola A. Transcription factor Tox2 is required for metabolic adaptation and tissue residency of ILC3 in the gut. Immunity 2024; 57:1019-1036.e9. [PMID: 38677292 PMCID: PMC11096055 DOI: 10.1016/j.immuni.2024.04.001] [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: 12/06/2023] [Revised: 02/13/2024] [Accepted: 04/03/2024] [Indexed: 04/29/2024]
Abstract
Group 3 innate lymphoid cells (ILC3) are the major subset of gut-resident ILC with essential roles in infections and tissue repair, but how they adapt to the gut environment to maintain tissue residency is unclear. We report that Tox2 is critical for gut ILC3 maintenance and function. Gut ILC3 highly expressed Tox2, and depletion of Tox2 markedly decreased ILC3 in gut but not at central sites, resulting in defective control of Citrobacter rodentium infection. Single-cell transcriptional profiling revealed decreased expression of Hexokinase-2 in Tox2-deficient gut ILC3. Consistent with the requirement for hexokinases in glycolysis, Tox2-/- ILC3 displayed decreased ability to utilize glycolysis for protein translation. Ectopic expression of Hexokinase-2 rescued Tox2-/- gut ILC3 defects. Hypoxia and interleukin (IL)-17A each induced Tox2 expression in ILC3, suggesting a mechanism by which ILC3 adjusts to fluctuating environments by programming glycolytic metabolism. Our results reveal the requirement for Tox2 to support the metabolic adaptation of ILC3 within the gastrointestinal tract.
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Affiliation(s)
- Arundhoti Das
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Gustavo Ulises Martinez-Ruiz
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA; Faculty of Medicine, Research Division, National Autonomous University of Mexico, Mexico City, Mexico; Children's Hospital of Mexico Federico Gomez, Mexico City, Mexico
| | - Nicolas Bouladoux
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, NIAID, NIH, Bethesda, MD, USA
| | - Apollo Stacy
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, NIAID, NIH, Bethesda, MD, USA; Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Josquin Moraly
- Pediatric Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Maria Vega-Sendino
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Yongge Zhao
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Marieke Lavaert
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Yi Ding
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Abigail Morales-Sanchez
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA; Children's Hospital of Mexico Federico Gomez, Mexico City, Mexico
| | - Christelle Harly
- Université de Nantes, CNRS, Inserm, CRCINA, Nantes, France; LabEx IGO "Immunotherapy, Graft, Oncology," Nantes, France
| | - Mina O Seedhom
- Laboratory of Viral Diseases, NIAID, NIH, Bethesda, MD, USA
| | - Raj Chari
- Genome Modification Core, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Parirokh Awasthi
- Mouse Modeling Core, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Tomoko Ikeuchi
- Oral Immunity and Infection Section, NIDCR, NIH, Bethesda, MD, USA
| | - Yueqiang Wang
- Shenzhen Typhoon HealthCare, Shenzhen, Guangdong, China
| | - Jinfang Zhu
- Laboratory of Immune System Biology, NIAID, NIH, Bethesda, MD, USA
| | | | - WanJun Chen
- Mucosal Immunology Section, NIDCR, NIH, Bethesda, MD, USA
| | | | | | - Sergio Ruiz
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA
| | - Naomi Taylor
- Pediatric Oncology Branch, National Cancer Institute, NIH, Bethesda, MD, USA
| | - Yasmine Belkaid
- Metaorganism Immunity Section, Laboratory of Host Immunity and Microbiome, NIAID, NIH, Bethesda, MD, USA
| | - Avinash Bhandoola
- Laboratory of Genome Integrity, Center for Cancer Research, NCI, NIH, Bethesda, MD, USA.
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9
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Zhao R, Hong L, Shi G, Ye H, Lou X, Zhou X, Yao J, Shi X, An J, Sun M. Mineralocorticoid promotes intestinal inflammation through receptor dependent IL17 production in ILC3s. Int Immunopharmacol 2024; 130:111678. [PMID: 38368773 DOI: 10.1016/j.intimp.2024.111678] [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: 12/11/2023] [Revised: 02/03/2024] [Accepted: 02/08/2024] [Indexed: 02/20/2024]
Abstract
Aldosterone is a key mineralocorticoid involved in regulating the concentration of blood electrolytes and physiological volume balance. Activation of mineralocorticoid receptor (MR) has been recently reported to participate in adaptive and innate immune responses under inflammation. Here, we evaluated the role of aldosterone and MR in inflammation bowel diseases (IBD). Aldosterone elevated in the colon of DSS-induced colitis mice. Aldosterone addition induced IL17 production and ROS/RNS level in group 3 innate lymphoid cells (ILC3s) and exacerbated intestinal injury. A selective mineralocorticoid receptor antagonism, eplerenone, inhibited IL17-producing ILC3s and its ROS/RNS production, protected mice from DSS-induced colitis. Mice lacking Nr3c2 (MR coding gene) in ILC3s exhibited decreased IL17 and ROS/RNS production, which alleviated colitis and colitis-associated colorectal cancer (CAC). Further experiments revealed that MR could directly bind to IL17A promoter and facilitate its transcription, which could be enhanced by aldosterone. Thus, our findings demonstrated the critical role of aldosterone-MR-IL17 signaling in ILC3s and gut homeostasis, indicating the therapeutic strategy of eplerenone in IBD clinical trial.
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Affiliation(s)
- Rongchuan Zhao
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230006, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China
| | - Lei Hong
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230006, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China; Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University. Suzhou Science and Technology Town Hospital. No. 1 Lijiang Road, Suzhou 215153, China
| | - Guohua Shi
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China
| | - Hong Ye
- Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China
| | - Xinqi Lou
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University. Suzhou Science and Technology Town Hospital. No. 1 Lijiang Road, Suzhou 215153, China
| | - Xinying Zhou
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230006, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China
| | - Jinyu Yao
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230006, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China
| | - Xiaohua Shi
- Digestive Department, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University, Suzhou Science and Technology Town Hospital, No. 1 Lijiang Road, Suzhou 215153, China
| | - Jianzhong An
- Institute of Clinical Medicine Research, Suzhou Hospital, Affiliated Hospital of Medical School, Nanjing University. Suzhou Science and Technology Town Hospital. No. 1 Lijiang Road, Suzhou 215153, China.
| | - Minxuan Sun
- School of Biomedical Engineering (Suzhou), Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230006, China; Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Science, Suzhou 215163, China.
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10
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Fachi JL, Pral LP, Assis HC, Oliveira S, Rodovalho VR, dos Santos JAC, Fernandes MF, Matheus VA, Sesti-Costa R, Basso PJ, Flóro e Silva M, Câmara NOS, Giorgio S, Colonna M, Vinolo MAR. Hyperbaric oxygen augments susceptibility to C. difficile infection by impairing gut microbiota ability to stimulate the HIF-1α-IL-22 axis in ILC3. Gut Microbes 2024; 16:2297872. [PMID: 38165200 PMCID: PMC10763646 DOI: 10.1080/19490976.2023.2297872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/18/2023] [Indexed: 01/03/2024] Open
Abstract
Hyperbaric oxygen (HBO) therapy is a well-established method for improving tissue oxygenation and is typically used for the treatment of various inflammatory conditions, including infectious diseases. However, its effect on the intestinal mucosa, a microenvironment known to be physiologically hypoxic, remains unclear. Here, we demonstrated that daily treatment with hyperbaric oxygen affects gut microbiome composition, worsening antibiotic-induced dysbiosis. Accordingly, HBO-treated mice were more susceptible to Clostridioides difficile infection (CDI), an enteric pathogen highly associated with antibiotic-induced colitis. These observations were closely linked with a decline in the level of microbiota-derived short-chain fatty acids (SCFAs). Butyrate, a SCFA produced primarily by anaerobic microbial species, mitigated HBO-induced susceptibility to CDI and increased epithelial barrier integrity by improving group 3 innate lymphoid cell (ILC3) responses. Mice displaying tissue-specific deletion of HIF-1 in RORγt-positive cells exhibited no protective effect of butyrate during CDI. In contrast, the reinforcement of HIF-1 signaling in RORγt-positive cells through the conditional deletion of VHL mitigated disease outcome, even after HBO therapy. Taken together, we conclude that HBO induces intestinal dysbiosis and impairs the production of SCFAs affecting the HIF-1α-IL-22 axis in ILC3 and worsening the response of mice to subsequent C. difficile infection.
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Affiliation(s)
- José L. Fachi
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Laís. P. Pral
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Helder C. Assis
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Sarah Oliveira
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Vinícius R. Rodovalho
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Jefferson A. C. dos Santos
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Mariane F. Fernandes
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Valquíria A. Matheus
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Renata Sesti-Costa
- Hematology and Hemotherapy Center, University of Campinas, Campinas, Brazil
| | - Paulo J. Basso
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marina Flóro e Silva
- Department of Animal Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Niels O. S. Câmara
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Selma Giorgio
- Department of Animal Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, USA
| | - Marco A. R. Vinolo
- Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
- Experimental Medicine Research Cluster, Institute of Biology, University of Campinas, Campinas, Brazil
- Obesity and Comorbidities Research Center (OCRC), University of Campinas, Campinas, Brazil
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11
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Sah P, Knighten BA, Reidy MA, Zenewicz LA. Polyamines and hypusination are important for Clostridioides difficile toxin B (TcdB)-mediated activation of group 3 innate lymphocytes (ILC3s). Infect Immun 2023; 91:e0023623. [PMID: 37861311 PMCID: PMC10652861 DOI: 10.1128/iai.00236-23] [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: 06/15/2023] [Accepted: 09/17/2023] [Indexed: 10/21/2023] Open
Abstract
Clostridioides difficile is the most common cause of nosocomial gastrointestinal tract bacterial infections. We lack fully effective reliable treatments for this pathogen, and there is a critical need to better understand how C. difficile interacts with our immune system. Group 3 innate lymphocytes (ILC3s) are rare immune cells localized within mucosal tissues that protect against bacterial infections. Upon activation, ILC3s secrete high levels of the cytokine interleukin-22 (IL-22), which is a critical regulator of tissue responses during infection. C. difficile toxin B (TcdB), the major virulence factor, directly activates ILC3s, resulting in high IL-22 levels. We previously reported that polyamines are important in the activation of ILC3s by the innate cytokine interleukin-23 (IL-23) but did not identify a specific mechanism. In this study, we examine how a pathogen impacts a metabolic pathway important for immune cell function and hypothesized that polyamines are important in TcdB-mediated ILC3 activation. We show that TcdB upregulates the polyamine biosynthesis pathway, and the inhibition of the pathway decreases TcdB-mediated ILC3 activation. Two polyamines, putrescine and spermidine, are involved. Spermidine is the key polyamine in the hypusination of eukaryotic initiation factor 5A (eIF5A), and the inhibition of eIF5A reduced ILC3 activation. Thus, there is potential to leverage polyamines in ILC3s to promote activation of ILC3s during C. difficile infection and other bacterial infections where ILC3s serve a protective role.
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Affiliation(s)
- Prakash Sah
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Bailey A. Knighten
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Megan A. Reidy
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Lauren A. Zenewicz
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
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12
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Xiong L, Helm EY, Dean JW, Sun N, Jimenez-Rondan FR, Zhou L. Nutrition impact on ILC3 maintenance and function centers on a cell-intrinsic CD71-iron axis. Nat Immunol 2023; 24:1671-1684. [PMID: 37709985 PMCID: PMC11256193 DOI: 10.1038/s41590-023-01612-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 08/04/2023] [Indexed: 09/16/2023]
Abstract
Iron metabolism is pivotal for cell fitness in the mammalian host; however, its role in group 3 innate lymphoid cells (ILC3s) is unknown. Here we show that transferrin receptor CD71 (encoded by Tfrc)-mediated iron metabolism cell-intrinsically controls ILC3 proliferation and host protection against Citrobacter rodentium infection and metabolically affects mitochondrial respiration by switching of oxidative phosphorylation toward glycolysis. Iron deprivation or Tfrc ablation in ILC3s reduces the expression and/or activity of the aryl hydrocarbon receptor (Ahr), a key ILC3 regulator. Genetic ablation or activation of Ahr in ILC3s leads to CD71 upregulation or downregulation, respectively, suggesting Ahr-mediated suppression of CD71. Mechanistically, Ahr directly binds to the Tfrc promoter to inhibit transcription. Iron overload partially restores the defective ILC3 compartment in the small intestine of Ahr-deficient mice, consistent with the compensatory upregulation of CD71. These data collectively demonstrate an under-appreciated role of the Ahr-CD71-iron axis in the regulation of ILC3 maintenance and function.
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Affiliation(s)
- Lifeng Xiong
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Eric Y Helm
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Joseph W Dean
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Na Sun
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Felix R Jimenez-Rondan
- Center for Nutritional Sciences and Food Science and Human Nutrition Department, University of Florida, Gainesville, FL, USA
| | - Liang Zhou
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
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13
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Sah P, Zenewicz LA. The Polyamine Putrescine Is a Positive Regulator of Group 3 Innate Lymphocyte Activation. Immunohorizons 2023; 7:41-48. [PMID: 36637514 PMCID: PMC10520894 DOI: 10.4049/immunohorizons.2200097] [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: 12/12/2022] [Accepted: 12/12/2022] [Indexed: 01/14/2023] Open
Abstract
Group 3 innate lymphocytes (ILC3s) rapidly respond to invading pathogens or inflammatory signals, which requires shifting cellular metabolic demands. Metabolic adaptations regulating ILC3 function are not completely understood. Polyamines are polycationic metabolites that have diverse roles in cellular functions and in immunity regulate immune cell biology, including Th17 cells. Whether polyamines play a role in ILC3 activation is unknown. In this article, we report that the polyamine synthesis pathway is important for ILC3 activation. IL-23-activated mouse ILC3s upregulate ornithine decarboxylase, the enzyme catalyzing the rate-limiting step of the conversion of ornithine to putrescine in polyamine synthesis, with a subsequent increase in putrescine levels. Inhibition of ornithine decarboxylase via a specific inhibitor, α-difluoromethylornithine, reduced levels of IL-22 produced by steady-state or IL-23-activated ILC3s in a putrescine-dependent manner. Thus, the polyamine putrescine is a positive regulator of ILC3 activation. Our results suggest that polyamines represent a potential target for therapeutic modulation of ILC3 activation during infection or inflammatory disorders.
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Affiliation(s)
- Prakash Sah
- Department of Microbiology and Immunology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
| | - Lauren A Zenewicz
- Department of Microbiology and Immunology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK
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14
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Michieletto MF, Tello-Cajiao JJ, Mowel WK, Chandra A, Yoon S, Joannas L, Clark ML, Jimenez MT, Wright JM, Lundgren P, Williams A, Thaiss CA, Vahedi G, Henao-Mejia J. Multiscale 3D genome organization underlies ILC2 ontogenesis and allergic airway inflammation. Nat Immunol 2023; 24:42-54. [PMID: 36050414 PMCID: PMC10134076 DOI: 10.1038/s41590-022-01295-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 07/18/2022] [Indexed: 01/06/2023]
Abstract
Innate lymphoid cells (ILCs) are well-characterized immune cells that play key roles in host defense and tissue homeostasis. Yet, how the three-dimensional (3D) genome organization underlies the development and functions of ILCs is unknown. Herein, we carried out an integrative analysis of the 3D genome structure, chromatin accessibility and gene expression in mature ILCs. Our results revealed that the local 3D configuration of the genome is rewired specifically at loci associated with ILC biology to promote their development and functional differentiation. Importantly, we demonstrated that the ontogenesis of ILC2s and the progression of allergic airway inflammation are determined by a unique local 3D configuration of the region containing the ILC-lineage-defining factor Id2, which is characterized by multiple interactions between the Id2 promoter and distal regulatory elements bound by the transcription factors GATA-3 and RORα, unveiling the mechanism whereby the Id2 expression is specifically controlled in group 2 ILCs.
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Affiliation(s)
- Michaël F Michieletto
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - John J Tello-Cajiao
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Walter K Mowel
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Aditi Chandra
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Sora Yoon
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Leonel Joannas
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Megan L Clark
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Monica T Jimenez
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Jasmine M Wright
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Patrick Lundgren
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Adam Williams
- Division of Allergy and Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Christoph A Thaiss
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Microbiology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Golnaz Vahedi
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Department of Genetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Penn Epigenetics Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Jorge Henao-Mejia
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA. .,Division of Protective Immunity, Department of Pathology and Laboratory Medicine, The Children's Hospital of Philadelphia, Philadelphia, PA, USA.
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15
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Huang S, Wang X, Xie X, Su Y, Pan Z, Li Y, Liang J, Zhang M, Pan S, Xu B, Li L, Chen J, Luo X, Zhou L. Dahuang Mudan decoction repairs intestinal barrier in chronic colitic mice by regulating the function of ILC3. JOURNAL OF ETHNOPHARMACOLOGY 2022; 299:115652. [PMID: 36038092 DOI: 10.1016/j.jep.2022.115652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 08/01/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Dahuang Mudan decoction (DMD) is a classic prescription for treating intestinal carbuncle from Zhang Zhongjing's "Essentials of the Golden Chamber" in the Han Dynasty. Recent studies also prove that DMD has a therapeutic effect on ulcerative colitis (UC), but its mechanism is still unclear. AIM OF STUDY In this study, we aim to assess the therapeutic effect of DMD on DSS-induced chronic colitis in mice and deeply expound its underlying regulative mechanism. MATERIALS AND METHODS The efficacy of DMD on mice with 2% DSS-induced chronic colitis was examined by changes in mouse body weight, DAI score, colon length changes, peripheral blood white blood cells (WBC) and red blood cells (RBC) counts, and hemoglobin (HGB) content, using mesalazine as a positive control. A small animal imaging system observed the FITC-Dextran fluorescence distribution in mice, and the contents of IL-22 and IL-17A in colon tissue homogenate supernatant and LPS in peripheral blood were detected by ELISA. Fluorescence in situ molecular hybridization and bacterial culture were used to investigate bacterial infiltration in intestinal mucosa and bacterial translocation in mesenteric lymph nodes and spleen. Mice immune function was further evaluated by analyzing the changes in spleen index, thymus index, and the ratio of peripheral blood granulocytes, monocytes, and lymphocytes. Meanwhile, the proportion of NCR+ group 3 innate lymphoid cells (ILC3), NCR-ILC3, and IL-22+ILC3 in colonic lamina propria lymphocytes of mice was detected by flow cytometry. The contents of effectors IL-22, IL-17A, and GM-CSF were detected by RT-PCR. We use cell scratching to determine the effect of DMD conditioned medium on the migration of Caco-2 cells by establishing an in vitro model of MNK-3 conditioned medium (CM) intervening Caco-2 cells. RT-PCR and WB detect the expression of tight junction ZO-1, Occludin, and Claudin-1. RESULTS DMD restored the body weight, colon length, peripheral blood RBC numbers, and HGB content of chronic colitis mice and reduced peripheral blood WBC and colon inflammatory cell infiltration. Moreover, DMD decreased LPS content in serum, bacterial infiltration of colonic mucosa, and bacterial translocation in spleen and mesenteric lymph nodes. Simultaneously, DMD intensified the expression of ZO-1, Occludin, and Claudin-1, the ratio of NCR+ILC3 and IL-22+ILC3, and decreased the proportion of NCR-ILC3. In vitro studies also confirmed that the conditioned medium of DMD promoted the migration of Caco-2 cells and the expression of tight junction proteins. CONCLUSION Our results confirm that DMD improves inflammation and restores intestinal epithelial function in mice with chronic colitis, and the mechanism may be related to regulating ILC3 function.
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Affiliation(s)
- Shaowei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Xiaojing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Xueqian Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Yulin Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Zengfeng Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Yanyang Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Junjie Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Meiling Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Simin Pan
- First Clinical medical college, Guangzhou University of Chinese Medicine, China
| | - Bo Xu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Linzhu Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China
| | - Jinyan Chen
- School of Basic Medicine, Guangzhou University of Chinese Medicine, China
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China.
| | - Lian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, China.
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16
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Ornithine decarboxylase supports ILC3 responses in infectious and autoimmune colitis through positive regulation of IL-22 transcription. Proc Natl Acad Sci U S A 2022; 119:e2214900119. [PMID: 36279426 PMCID: PMC9659397 DOI: 10.1073/pnas.2214900119] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Group 3 innate lymphoid cells (ILC3s) are RORγT+ lymphocytes that are predominately enriched in mucosal tissues and produce IL-22 and IL-17A. They are the innate counterparts of Th17 cells. While Th17 lymphocytes utilize unique metabolic pathways in their differentiation program, it is unknown whether ILC3s make similar metabolic adaptations. We employed single-cell RNA sequencing and metabolomic profiling of intestinal ILC subsets to identify an enrichment of polyamine biosynthesis in ILC3s, converging on the rate-limiting enzyme ornithine decarboxylase (ODC1). In vitro and in vivo studies demonstrated that exogenous supplementation with the polyamine putrescine or its biosynthetic substrate, ornithine, enhanced ILC3 production of IL-22. Conditional deletion of ODC1 in ILC3s impaired mouse antibacterial defense against Citrobacter rodentium infection, which was associated with a decrease in anti-microbial peptide production by the intestinal epithelium. Furthermore, in a model of anti-CD40 colitis, deficiency of ODC1 in ILC3s markedly reduced the production of IL-22 and severity of inflammatory colitis. We conclude that ILC3-intrinsic polyamine biosynthesis facilitates efficient defense against enteric pathogens as well as exacerbates autoimmune colitis, thus representing an attractive target to modulate ILC3 function in intestinal disease.
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17
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Xie X, Zhao M, Huang S, Li P, Chen P, Luo X, Wang Q, Pan Z, Li X, Chen J, Chen B, Zhou L. Luteolin alleviates ulcerative colitis by restoring the balance of NCR -ILC3/NCR +ILC3 to repairing impaired intestinal barrier. Int Immunopharmacol 2022; 112:109251. [PMID: 36182875 DOI: 10.1016/j.intimp.2022.109251] [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] [Received: 07/10/2022] [Revised: 09/01/2022] [Accepted: 09/09/2022] [Indexed: 11/05/2022]
Abstract
Ulcerative colitis (UC) is a multifactorial, refractory chronic inflammatory disease. The primary factor leading to prolonged ulcerative colitis is the imbalance of the group 3 innate lymphoid cells (ILC3) subgroup resulting in the delayed reconstruction of damaged intestinal barrier. Previous studies show that luteolin had efficacy on UC, however, the potency of luteolin on restoring the balance of NCR-ILC3/NCR+ILC3 to repairing impaired intestinal barrier remains unclear. In this study, to investigate the potential mechanism of luteolin on ILC3 subgroup, we first evidenced that luteolin could promote transformation NCR-MNK3 to NCR+MNK3 in vitro. Then, a UC model was established in C57BL/6J mice to assess the efficacy of luteolin in restoring ILC3 subgroup balance and repairing intestinal barrier in chronic UC. Finally, the experiments in vitro validated the potential mechanism of luteolin in regulating ILC3 plasticity. The results showed that luteolin significantly alleviated the symptoms of DSS-induced UC in mice, including preventing body weight loss and decreasing the disease activity index (DAI) and intestinal damages. Additionally, luteolin increased NCR+ILC3 levels, promoted the production of IL-22 and decreased the levels of IL-17a and INF-γ in the intestine, and encourage intestinal barrier function recovery in UC mice by promoting the expression of ZO-1 and Occludin. Experiments in vitro revealed that luteolin facilitated the transformation of NCR-MNK3 to NCR+MNK3 and promoted the secretion of IL-22, which was linked to the Notch pathway. All results revealed that luteolin restored the balance of NCR-ILC3/NCR+ILC3 and contributed to repair of injured intestinal epithelium to alleviate ulcerative colitis.
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Affiliation(s)
- Xueqian Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Meng Zhao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Shaowei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Pengcheng Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peiqi Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Qing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zengfeng Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiangling Li
- Key Laboratory of Basic Research of Traditional Chinese Medicine, Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Jinyan Chen
- Basic Medical College, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bin Chen
- First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, China.
| | - Lian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
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18
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Xiong L, Wang S, Dean JW, Oliff KN, Jobin C, Curtiss R, Zhou L. Group 3 innate lymphoid cell pyroptosis represents a host defence mechanism against Salmonella infection. Nat Microbiol 2022; 7:1087-1099. [PMID: 35668113 PMCID: PMC9250631 DOI: 10.1038/s41564-022-01142-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 05/04/2022] [Indexed: 01/03/2023]
Abstract
Group 3 innate lymphoid cells (ILC3s) produce interleukin (IL)-22 and coordinate with other cells in the gut to mount productive host immunity against bacterial infection. However, the role of ILC3s in Salmonella enterica serovar Typhimurium (S. Typhimurium) infection, which causes foodborne enteritis in humans, remains elusive. Here we show that S. Typhimurium exploits ILC3-produced IL-22 to promote its infection in mice. Specifically, S. Typhimurium secretes flagellin through activation of the TLR5-MyD88-IL-23 signalling pathway in antigen presenting cells (APCs) to selectively enhance IL-22 production by ILC3s, but not T cells. Deletion of ILC3s but not T cells in mice leads to better control of S. Typhimurium infection. We also show that S. Typhimurium can directly invade ILC3s and cause caspase-1-mediated ILC3 pyroptosis independently of flagellin. Genetic ablation of Casp1 in mice leads to increased ILC3 survival and IL-22 production, and enhanced S. Typhimurium infection. Collectively, our data suggest a key host defence mechanism against S. Typhimurium infection via induction of ILC3 death to limit intracellular bacteria and reduce IL-22 production.
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Affiliation(s)
- Lifeng Xiong
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Shifeng Wang
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Joseph W Dean
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Kristen N Oliff
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Christian Jobin
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
- Division of Gastroenterology, Hepatology and Nutrition, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Roy Curtiss
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Liang Zhou
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
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19
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Li YY, Wang XJ, Su YL, Wang Q, Huang SW, Pan ZF, Chen YP, Liang JJ, Zhang ML, Xie XQ, Wu ZY, Chen JY, Zhou L, Luo X. Baicalein ameliorates ulcerative colitis by improving intestinal epithelial barrier via AhR/IL-22 pathway in ILC3s. Acta Pharmacol Sin 2022; 43:1495-1507. [PMID: 34671110 PMCID: PMC9160000 DOI: 10.1038/s41401-021-00781-7] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/18/2021] [Indexed: 02/07/2023] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory disease of the gastrointestinal tract, which is closely related to gut barrier dysfunction. Emerging evidence shows that interleukin-22 (IL-22) derived from group 3 innate lymphoid cells (ILC3s) confers benefits on intestinal barrier, and IL-22 expression is controlled by aryl hydrocarbon receptor (AhR). Previous studies show that baicalein protects the colon from inflammatory damage. In this study we elucidated the molecular mechanisms underlying the protective effect of baicalein on intestinal barrier function in colitis mice. Mice were administered baicalein (10, 20, 40 mg·kg-1·d-1, i.g.) for 10 days; the mice freely drank 3% dextran sulfate sodium (DSS) on D1-D7 to induce colitis. We showed that baicalein administration simultaneously ameliorated gut inflammation, decreased intestinal permeability, restored tight junctions of colons possibly via promoting AhR/IL-22 pathway. Co-administration of AhR antagonist CH223191 (10 mg/kg, i.p.) partially blocked the therapeutic effects of baicalein in colitis mice, whereas AhR agonist FICZ (1 μg, i.p.) ameliorated symptoms and gut barrier function in colitis mice. In a murine lymphocyte line MNK-3, baicalein (5-20 μM) dose-dependently increased the expression of AhR downstream target protein CYP1A1, and enhanced IL-22 production through facilitating AhR nuclear translocation, these effects were greatly diminished in shAhR-MNK3 cells, suggesting that baicalein induced IL-22 production in AhR-dependent manner. To further clarify that, we constructed an in vitro system consisting of MNK-3 and Caco-2 cells, in which MNK-3 cell supernatant treated with baicalein could decrease FITC-dextran permeability and promoted the expression of tight junction proteins ZO-1 and occluding in Caco-2 cells. In conclusion, this study demonstrates that baicalein ameliorates colitis by improving intestinal epithelial barrier via AhR/IL-22 pathway in ILC3s, thus providing a potential therapy for UC.
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Affiliation(s)
- Yan-Yang Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xiao-Jing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yu-Lin Su
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qing Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Shao-Wei Huang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Zeng-Feng Pan
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Yan-Ping Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Jun-Jie Liang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Mei-Ling Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Xue-Qian Xie
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Zhi-Yun Wu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Jin-Yan Chen
- College of Basic Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Lian Zhou
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
| | - Xia Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China.
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20
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Zhou J, Hou P, Yao Y, Yue J, Zhang Q, Yi L, Mi M. Dihydromyricetin Improves High-Fat Diet-Induced Hyperglycemia through ILC3 Activation via a SIRT3-Dependent Mechanism. Mol Nutr Food Res 2022; 66:e2101093. [PMID: 35635431 DOI: 10.1002/mnfr.202101093] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 05/13/2022] [Indexed: 12/30/2022]
Abstract
SCOPE Previous studies indicate that dihydromyricetin (DHM) effectively improved glucose homeostasis and alleviated insulin resistance in population-intervened trials, yet the underlying mechanism remains obscure. METHODS AND RESULTS Wild-type male mice and recombinase activating gene 1(Rag1)-/- mice (lacking adaptive immunity lymphocytes) are fed with control, high-fat diet (HFD), or HFD+DHM diets for 8 weeks. DHM effectively protects HFD feeding mice against hyperglycemia by promoting group 3 innate lymphoid cells (ILC3s) cells proliferation and interleukin 22 (IL-22) production. Furthermore, IL-22 secretion induced by DHM increases the expression levels of the tight junction (TJs) molecules to protect the intestinal barrier integrity, thereby decreasing the level of lipopolysaccharides (LPS), an endotoxin that is involved in the regulation of chronic tissue inflammation and insulin resistance. In addition, silent mating-type information regulation 2 homolog 3 (SIRT3) deficiency results in more serious obesity and intestinal barrier damage following HFD feeding and abolished DHM-mediated increase in IL-22 expression levels of ILC3 cells in SIRT3 knockout (SIRT3KO) mice. DHM reduces metabolic stress and enhances mitochondrial respiratory capacity to promote cell proliferation and IL-22 secretion by activating SIRT3 in ILC3 cells CONCLUSIONS: DHM improves IL-22 production of ILC3 cells and subsequently inhibits intestinal barrier dysfunction to alleviate hyperglycemia partially mediated by SIRT3.
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Affiliation(s)
- Jie Zhou
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Pengfei Hou
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Yu Yao
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Jing Yue
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Qianyong Zhang
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Long Yi
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
| | - Mantian Mi
- Research Center for Nutrition and Food Safety, Chongqing Key Laboratory of Nutrition and Food Safety, Chongqing Medical Nutrition Research Center, Institute of Military Preventive Medicine, Third Military Medical University, Chongqing, 400038, P. R. China
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21
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Sah P, Derouen JT, Alexander JL, Zenewicz LA. Group 3 innate lymphocytes (ILC3s) upregulate IL-22 in response to elevated intracellular cAMP levels. Cytokine 2022; 153:155862. [PMID: 35306427 PMCID: PMC9010362 DOI: 10.1016/j.cyto.2022.155862] [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: 11/12/2021] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 11/29/2022]
Abstract
Group 3 innate lymphocytes (ILC3s) are important immune cells within mucosal tissues and protect against bacterial infections. They can be activated in response to the innate cytokines IL-23 or IL-1β, which rapidly increases their production of effector molecules that regulate barrier functions. Pathogens can subvert these anti-bacterial effects to evade mucosal defenses to infect the host. Bacillus anthracis, the causative agent of anthrax, produces two major toxins that can modulate the immune response. We have previously shown that lethal toxin downmodulates the function of ILC3s. On the other hand, edema toxin has been shown promote T helper 17 (Th17) cell differentiation, adaptive counterparts of ILC3s, via elevation of cyclic adenosine monophosphate (cAMP). We hypothesized that edema toxin may also modulate ILC3 function. In this study, we show that edema toxin has the opposite effect of lethal toxin; edema toxin directly activates ILC3s independently of innate cytokine stimulation. Treatment of a mouse ILC3-like cell line with edema toxin, a potent adenylate cyclase, upregulated production of the cytokine IL-22, a major effector molecule of ILC3s and a critical factor in maintaining mucosal barriers. Forskolin treatment phenocopied the effect observed with edema toxin and led to an increase in CREB phosphorylation in ILC3s. This observation has potential implications for a role for cAMP signaling in the activation of ILC3s.
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Affiliation(s)
- Prakash Sah
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Jonathan T Derouen
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Justine L Alexander
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Lauren A Zenewicz
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
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22
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Pope RL, Chitrakar A, Sah P, Shadid T, Ballard JD, Zenewicz LA. Clostridioides difficile Toxin B Activates Group 3 Innate Lymphocytes. Infect Immun 2022; 90:e0007322. [PMID: 35377172 PMCID: PMC9022501 DOI: 10.1128/iai.00073-22] [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: 02/16/2022] [Accepted: 03/05/2022] [Indexed: 11/20/2022] Open
Abstract
Group 3 innate lymphocytes (ILC3s) are rare immune cells localized in mucosal tissues, especially the gastrointestinal (GI) tract. Despite their rarity, they are a major source of the cytokine interleukin-22 (IL-22), which protects the GI epithelium during inflammation and infection. Although ILC3s have been demonstrated to be important for defense against Clostridioides difficile infection, the exact mechanisms through which they sense productive infection and become activated to produce IL-22 remain poorly understood. In this study, we identified a novel mechanism of ILC3 activation after exposure to C. difficile. Toxin B (TcdB) from C. difficile directly induced production of IL-22 in ILC3s, and this induction was dependent on the glucosyltransferase activity of the toxin, which inhibits small GTPases. Pharmacological inhibition of the small GTPase Cdc42 also enhanced IL-22 production in ILC3s, indicating that Cdc42 is a negative regulator of ILC3 activation. Further gene expression analysis revealed that treatment with TcdB modulated the expression of several inflammation-related genes in ILC3s. These findings demonstrate that C. difficile toxin-mediated inhibition of Cdc42 leads to the activation of ILC3s, providing evidence for how these cells are recruited into the immune response against the pathobiont.
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Affiliation(s)
- Rosemary L. Pope
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Alisha Chitrakar
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Prakash Sah
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Tyler Shadid
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Jimmy D. Ballard
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
| | - Lauren A. Zenewicz
- Department of Microbiology and Immunology, College of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA
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23
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Fachi JL, Pral LP, Dos Santos JAC, Codo AC, de Oliveira S, Felipe JS, Zambom FFF, Câmara NOS, Vieira PMMM, Colonna M, Vinolo MAR. Hypoxia enhances ILC3 responses through HIF-1α-dependent mechanism. Mucosal Immunol 2021; 14:828-841. [PMID: 33446906 PMCID: PMC8221997 DOI: 10.1038/s41385-020-00371-6] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/08/2020] [Accepted: 12/08/2020] [Indexed: 02/04/2023]
Abstract
Group 3 innate lymphoid cells (ILC3) have a prominent role in the maintenance of intestine mucosa homeostasis. The hypoxia-inducible factor (HIF) is an important modulator of immune cell activation and a key mechanism for cellular adaptation to oxygen deprivation. However, its role on ILC3 is not well known. In this study, we investigated how a hypoxic environment modulates ILC3 response and the subsequent participation of HIF-1 signaling in this process. We found increased proliferation and activation of intestinal ILC3 at low oxygen levels, a response that was phenocopied when HIF-1α was chemically stabilized and was reversed when HIF-1 was blocked. The increased activation of ILC3 relied on a HIF-1α-dependent transcriptional program, but not on mTOR-signaling or a switch to glycolysis. HIF-1α deficiency in RORyt compartment resulted in impaired IL-17 and IL-22 production by ILC3 in vivo, which reflected in a lower expression of their target genes in the intestinal epithelium and an increased susceptibility to Clostridiodes difficile infection. Taken together, our results show that HIF-1α activation in intestinal ILC3 is relevant for their functions in steady state and infectious conditions.
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Affiliation(s)
- J L Fachi
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA
| | - L P Pral
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - J A C Dos Santos
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - A C Codo
- Laboratory of Immunometabolism, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - S de Oliveira
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - J S Felipe
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - F F F Zambom
- Renal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
| | - N O S Câmara
- Renal Division, Department of Clinical Medicine, Faculty of Medicine, University of São Paulo, São Paulo, Brazil
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - P M M M Vieira
- Laboratory of Immunometabolism, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
- Experimental Medicine Research Cluster, Campinas, Brazil
- Obesity and Comorbolities Research Center (OCRC), University of Campinas, Campinas, Brazil
| | - M Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO, USA.
| | - M A R Vinolo
- Laboratory of Immunoinflammation, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil.
- Experimental Medicine Research Cluster, Campinas, Brazil.
- Obesity and Comorbolities Research Center (OCRC), University of Campinas, Campinas, Brazil.
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24
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Deng Y, Chen H, Zeng Y, Wang K, Zhang H, Hu H. Leaving no one behind: tracing every human thymocyte by single-cell RNA-sequencing. Semin Immunopathol 2021; 43:29-43. [PMID: 33449155 DOI: 10.1007/s00281-020-00834-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Accepted: 12/22/2020] [Indexed: 02/05/2023]
Abstract
The thymus is the primary organ for T-cell development, providing an essential microenvironment consisting of the appropriate cytokine milieu and specialized stromal cells. Thymus-seeding progenitors from circulation immigrate into the thymus and undergo the stepwise T-cell specification, commitment, and selection processes. The transcriptional factors, epigenetic regulators, and signaling pathways involved in the T-cell development have been intensively studied using mouse models. Despite our growing knowledge of T-cell development, major questions remain unanswered regarding the ontogeny and early events of T-cell development at the fetal stage, especially in humans. The recently developed single-cell RNA-sequencing technique provides an ideal tool to investigate the heterogeneity of T-cell precursors and the molecular mechanisms underlying the divergent fates of certain T-cell precursors at the single-cell level. In this review, we aim to summarize the current progress of the study on human thymus organogenesis and thymocyte and thymic epithelial cell development, which is to shed new lights on developing novel strategies for in vitro T-cell regeneration and thymus rejuvenation.
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Affiliation(s)
- Yujun Deng
- Department of Rheumatology and Immunology and State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Hong Chen
- Department of Rheumatology and Immunology and State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Yang Zeng
- State Key Laboratory of Experimental Hematology, Fifth Medical Center of Chinese PLA General Hospital, Beijing, 100071, China.,State Key Laboratory of Proteomics, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing, 100071, China
| | - Keyue Wang
- Department of Rheumatology and Immunology and State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China
| | - Huiyuan Zhang
- Department of Rheumatology and Immunology and State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.
| | - Hongbo Hu
- Department of Rheumatology and Immunology and State Key Laboratory of Biotherapy, West China Hospital, and West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, and Collaborative Innovation Center for Biotherapy, Chengdu, China.
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25
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Mamareli P, Kruse F, Lu CW, Guderian M, Floess S, Rox K, Allan DSJ, Carlyle JR, Brönstrup M, Müller R, Berod L, Sparwasser T, Lochner M. Targeting cellular fatty acid synthesis limits T helper and innate lymphoid cell function during intestinal inflammation and infection. Mucosal Immunol 2021; 14:164-176. [PMID: 32355319 DOI: 10.1038/s41385-020-0285-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 03/13/2020] [Accepted: 03/24/2020] [Indexed: 02/04/2023]
Abstract
CD4+ T cells contribute critically to a protective immune response during intestinal infections, but have also been implicated in the aggravation of intestinal inflammatory pathology. Previous studies suggested that T helper type (Th)1 and Th17 cells depend on de novo fatty acid (FA) synthesis for their development and effector function. Here, we report that T-cell-specific targeting of the enzyme acetyl-CoA carboxylase 1 (ACC1), a major checkpoint controlling FA synthesis, impaired intestinal Th1 and Th17 responses by limiting CD4+ T-cell expansion and infiltration into the lamina propria in murine models of colitis and infection-associated intestinal inflammation. Importantly, pharmacological inhibition of ACC1 by the natural compound soraphen A mirrored the anti-inflammatory effects of T-cell-specific targeting, but also enhanced susceptibility toward infection with C. rodentium. Further analysis revealed that deletion of ACC1 in RORγt+ innate lymphoid cells (ILC), but not dendritic cells or macrophages, decreased resistance to infection by interfering with IL-22 production and intestinal barrier function. Together, our study suggests pharmacological targeting of ACC1 as an effective approach for metabolic immune modulation of T-cell-driven intestinal inflammatory responses, but also reveals an important role of ACC1-mediated lipogenesis for the function of RORγt+ ILC.
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Affiliation(s)
- Panagiota Mamareli
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany.,Institute of Medical Microbiology and Hygiene, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Friederike Kruse
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany
| | - Chia-Wen Lu
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Melanie Guderian
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany.,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany
| | - Stefan Floess
- Department of Experimental Immunology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Katharina Rox
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany.,German Center for Infection Research (DZIF), Partner Site Hannover-Braunschweig, Braunschweig, Germany
| | - David S J Allan
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - James R Carlyle
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Mark Brönstrup
- Department of Chemical Biology, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Rolf Müller
- Helmholtz Institute for Pharmaceutical Research, Helmholtz Centre for Infection Research, Saarland University, Saarbrücken, Germany.,Department of Pharmaceutical Biotechnology, Saarland University, Saarbrücken, Germany
| | - Luciana Berod
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany
| | - Tim Sparwasser
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany.,Institute of Medical Microbiology and Hygiene, University Medical Center, Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Matthias Lochner
- Institute of Infection Immunology, TWINCORE, Centre for Experimental and Clinical Infection Research, Hannover, Germany. .,Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.
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26
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Fachi JL, Sécca C, Rodrigues PB, Mato FCPD, Di Luccia B, Felipe JDS, Pral LP, Rungue M, Rocha VDM, Sato FT, Sampaio U, Clerici MTPS, Rodrigues HG, Câmara NOS, Consonni SR, Vieira AT, Oliveira SC, Mackay CR, Layden BT, Bortoluci KR, Colonna M, Vinolo MAR. Acetate coordinates neutrophil and ILC3 responses against C. difficile through FFAR2. J Exp Med 2020; 217:133544. [PMID: 31876919 PMCID: PMC7062529 DOI: 10.1084/jem.20190489] [Citation(s) in RCA: 131] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/29/2019] [Accepted: 12/09/2019] [Indexed: 12/11/2022] Open
Abstract
Microbiota-derived acetate coordinates innate immune responses during intestinal Clostridium difficile infection through its cognate receptor FFAR2. Acetate accelerates early neutrophil recruitment and increases ILC3 expression of the IL-1 receptor, boosting ILC3 production of IL-22 in response to neutrophil-derived IL-1β. Antibiotic-induced dysbiosis is a key predisposing factor for Clostridium difficile infections (CDIs), which cause intestinal disease ranging from mild diarrhea to pseudomembranous colitis. Here, we examined the impact of a microbiota-derived metabolite, short-chain fatty acid acetate, on an acute mouse model of CDI. We found that administration of acetate is remarkably beneficial in ameliorating disease. Mechanistically, we show that acetate enhances innate immune responses by acting on both neutrophils and ILC3s through its cognate receptor free fatty acid receptor 2 (FFAR2). In neutrophils, acetate-FFAR2 signaling accelerates their recruitment to the inflammatory sites, facilitates inflammasome activation, and promotes the release of IL-1β; in ILC3s, acetate-FFAR2 augments expression of the IL-1 receptor, which boosts IL-22 secretion in response to IL-1β. We conclude that microbiota-derived acetate promotes host innate responses to C. difficile through coordinate action on neutrophils and ILC3s.
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Affiliation(s)
- José Luís Fachi
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil.,Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO
| | - Cristiane Sécca
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO
| | - Patrícia Brito Rodrigues
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Felipe Cézar Pinheiro de Mato
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Blanda Di Luccia
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO
| | - Jaqueline de Souza Felipe
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Laís Passariello Pral
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Marcella Rungue
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Victor de Melo Rocha
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Fabio Takeo Sato
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Ulliana Sampaio
- Department of Food Technology, School of Food Engineering, University of Campinas, Campinas, Brazil
| | | | - Hosana Gomes Rodrigues
- Laboratory of Nutrients & Tissue Repair, School of Applied Sciences, University of Campinas, Limeira, Brazil
| | | | - Sílvio Roberto Consonni
- Department of Biochemistry & Tissue Biology, Institute of Biology, University of Campinas, Campinas, Brazil
| | - Angélica Thomaz Vieira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Sergio Costa Oliveira
- Department of Biochemistry and Immunology, Institute of Biological Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | | | - Brian T Layden
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL.,Jesse Brown Veterans Medical Center, Chicago, IL
| | - Karina Ramalho Bortoluci
- Center for Cellular and Molecular Therapy, Federal University of São Paulo, Vl Clementino, São Paulo, Brazil
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, MO
| | - Marco Aurélio Ramirez Vinolo
- Laboratory of Immunoinflammation, Department of Genetics and Evolution, Microbiology and Immunology, Institute of Biology, University of Campinas, Campinas, Brazil.,Experimental Medicine Research Cluster, Campinas, Brazil
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27
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Kucuksezer UC, Ozdemir C, Cevhertas L, Ogulur I, Akdis M, Akdis CA. Mechanisms of allergen-specific immunotherapy and allergen tolerance. Allergol Int 2020; 69:549-560. [PMID: 32900655 DOI: 10.1016/j.alit.2020.08.002] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 08/10/2020] [Indexed: 12/28/2022] Open
Abstract
Allergen-specific immunotherapy (AIT) is the mainstay treatment for the cure of allergic disorders, with depicted efficacy and safety by several trials and meta-analysis. AIT impressively contributes to the management of allergic rhinitis, asthma and venom allergies. Food allergy is a new arena for AIT with promising results, especially via novel administration routes. Cell subsets with regulatory capacities are induced during AIT. IL-10 and transforming growth factor (TGF)-β are the main suppressor cytokines, in addition to surface molecules such as cytotoxic T-lymphocyte-associated antigen-4 (CTLA-4) and programmed cell death protein-1 (PD-1) within the micro milieu. Modified T- and B-cell responses and antibody isotypes, increased activity thresholds for eosinophils, basophils and mast cells and consequent limitation of inflammatory cascades altogether induce and maintain a state of sustained allergen-specific unresponsiveness. Established tolerance is reflected into the clinical perspectives as improvement of allergy symptoms together with reduced medication requirements and evolved disease severity. Long treatment durations, costs, reduced patient compliance and risk of severe, even life-threatening adverse reactions during treatment stand as major limiting factors for AIT. By development of purified non-allergenic, highly-immunogenic modified allergen extracts, and combinational usage of them with novel adjuvant molecules via new routes may shorten treatment durations and possibly reduce these drawbacks. AIT is the best model for custom-tailored therapy of allergic disorders. Better characterization of disease endotypes, definition of specific biomarkers for diagnosis and therapy follow-up, as well as precision medicine approaches may further contribute to success of AIT in management of allergic disorders.
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28
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Parker ME, Barrera A, Wheaton JD, Zuberbuehler MK, Allan DSJ, Carlyle JR, Reddy TE, Ciofani M. c-Maf regulates the plasticity of group 3 innate lymphoid cells by restraining the type 1 program. J Exp Med 2020; 217:jem.20191030. [PMID: 31570496 PMCID: PMC7037249 DOI: 10.1084/jem.20191030] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Revised: 08/31/2019] [Accepted: 09/18/2019] [Indexed: 12/30/2022] Open
Abstract
The transcription factor c-Maf is an essential regulator of group 3 ILC homeostasis and effector plasticity. c-Maf limits acquisition of the type 1 program and conversion to the ILC1 fate through restraint of T-bet expression and function. CCR6− group 3 innate lymphoid cells (ILC3s) are mediators of intestinal immunity and barrier function that possess the capacity to acquire type 1 effector features and fully convert into ILC1s. The molecular mechanisms governing such plasticity are undefined. Here, we identified c-Maf as an essential regulator of ILC3 homeostasis and plasticity that limits physiological ILC1 conversion. Phenotypic analysis of effector status in Maf-deficient CCR6− ILC3s, coupled with evaluation of global changes in transcriptome, chromatin accessibility, and transcription factor motif enrichment, revealed that c-Maf enforces ILC3 identity. c-Maf promoted ILC3 accessibility and supported RORγt activity and expression of type 3 effector genes. Conversely, c-Maf antagonized type 1 programming, largely through restraint of T-bet expression and function. Mapping of the dynamic changes in chromatin landscape accompanying CCR6− ILC3 development and ILC1 conversion solidified c-Maf as a gatekeeper of type 1 regulatory transformation and a controller of ILC3 fate.
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Affiliation(s)
- Morgan E Parker
- Department of Immunology, Duke University Medical Center, Durham, NC
| | - Alejandro Barrera
- Center for Genomic and Computational Biology, Duke University Medical School, Durham, NC.,Department of Biostatistics and Bioinformatics, Duke University Medical School, Durham, NC
| | - Joshua D Wheaton
- Department of Immunology, Duke University Medical Center, Durham, NC
| | | | - David S J Allan
- Department of Immunology, University of Toronto, Toronto, Canada
| | - James R Carlyle
- Department of Immunology, University of Toronto, Toronto, Canada
| | - Timothy E Reddy
- Center for Genomic and Computational Biology, Duke University Medical School, Durham, NC.,Department of Biostatistics and Bioinformatics, Duke University Medical School, Durham, NC
| | - Maria Ciofani
- Department of Immunology, Duke University Medical Center, Durham, NC
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29
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Schulz-Kuhnt A, Greif V, Hildner K, Knipfer L, Döbrönti M, Zirlik S, Fuchs F, Atreya R, Zundler S, López-Posadas R, Neufert C, Ramming A, Kiefer A, Grüneboom A, Strasser E, Wirtz S, Neurath MF, Atreya I. ILC2 Lung-Homing in Cystic Fibrosis Patients: Functional Involvement of CCR6 and Impact on Respiratory Failure. Front Immunol 2020; 11:691. [PMID: 32457736 PMCID: PMC7221160 DOI: 10.3389/fimmu.2020.00691] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 03/26/2020] [Indexed: 01/10/2023] Open
Abstract
Cystic fibrosis patients suffer from a progressive, often fatal lung disease, which is based on a complex interplay between chronic infections, locally accumulating immune cells and pulmonary tissue remodeling. Although group-2 innate lymphoid cells (ILC2s) act as crucial initiators of lung inflammation, our understanding of their involvement in the pathogenesis of cystic fibrosis remains incomplete. Here we report a marked decrease of circulating CCR6+ ILC2s in the blood of cystic fibrosis patients, which significantly correlated with high disease severity and advanced pulmonary failure, strongly implicating increased ILC2 homing from the peripheral blood to the chronically inflamed lung tissue in cystic fibrosis patients. On a functional level, the CCR6 ligand CCL20 was identified as potent promoter of lung-directed ILC2 migration upon inflammatory conditions in vitro and in vivo using a new humanized mouse model with light-sheet fluorescence microscopic visualization of lung-accumulated human ILC2s. In the lung, blood-derived human ILC2s were able to augment local eosinophil and neutrophil accumulation and induced a marked upregulation of pulmonary type-VI collagen expression. Studies in primary human lung fibroblasts additionally revealed ILC2-derived IL-4 and IL-13 as important mediators of this type-VI collagen-inducing effect. Taken together, the here acquired results suggest that pathologically increased CCL20 levels in cystic fibrosis airways induce CCR6-mediated lung homing of circulating human ILC2s. Subsequent ILC2 activation then triggers local production of type-VI collagen and might thereby drive extracellular matrix remodeling potentially influencing pulmonary tissue destruction in cystic fibrosis patients. Thus, modulating the lung homing capacity of circulating ILC2s and their local effector functions opens new therapeutic avenues for cystic fibrosis treatment.
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Affiliation(s)
- Anja Schulz-Kuhnt
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Vicky Greif
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Kai Hildner
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Lisa Knipfer
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Michael Döbrönti
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Sabine Zirlik
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Florian Fuchs
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Raja Atreya
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Sebastian Zundler
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Rocío López-Posadas
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Clemens Neufert
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Andreas Ramming
- Department of Medicine 3, University Hospital of Erlangen, Erlangen, Germany
| | - Alexander Kiefer
- Department of Pediatrics and Adolescent Medicine, University Hospital of Erlangen, Erlangen, Germany
| | - Anika Grüneboom
- Department of Medicine 3, University Hospital of Erlangen, Erlangen, Germany
| | - Erwin Strasser
- Department of Transfusion Medicine and Haemostaseology, University Hospital of Erlangen, Erlangen, Germany
| | - Stefan Wirtz
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Markus F Neurath
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
| | - Imke Atreya
- Department of Medicine 1, University Hospital of Erlangen, Erlangen, Germany
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30
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Eken A, Cansever M, Okus FZ, Erdem S, Nain E, Azizoglu ZB, Haliloglu Y, Karakukcu M, Ozcan A, Devecioglu O, Aksu G, Arikan Ayyildiz Z, Topal E, Karakoc Aydiner E, Kiykim A, Metin A, Cipe F, Kaya A, Artac H, Reisli I, Guner SN, Uygun V, Karasu G, Dönmez Altuntas H, Canatan H, Oukka M, Ozen A, Chatila TA, Keles S, Baris S, Unal E, Patiroglu T. ILC3 deficiency and generalized ILC abnormalities in DOCK8-deficient patients. Allergy 2020; 75:921-932. [PMID: 31596517 DOI: 10.1111/all.14081] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 09/10/2019] [Accepted: 09/20/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Dedicator of cytokinesis 8 (DOCK8) deficiency is the main cause of the autosomal recessive hyper-IgE syndrome (HIES). We previously reported the selective loss of group 3 innate lymphoid cell (ILC) number and function in a Dock8-deficient mouse model. In this study, we sought to test whether DOCK8 is required for the function and maintenance of ILC subsets in humans. METHODS Peripheral blood ILC1-3 subsets of 16 DOCK8-deficient patients recruited at the pretransplant stage, and seven patients with autosomal dominant (AD) HIES due to STAT3 mutations, were compared with those of healthy controls or post-transplant DOCK8-deficient patients (n = 12) by flow cytometry and real-time qPCR. Sorted total ILCs from DOCK8- or STAT3-mutant patients and healthy controls were assayed for survival, apoptosis, proliferation, and activation by IL-7, IL-23, and IL-12 by cell culture, flow cytometry, and phospho-flow assays. RESULTS DOCK8-deficient but not STAT3-mutant patients exhibited a profound depletion of ILC3s, and to a lesser extent ILC2s, in their peripheral blood. DOCK8-deficient ILC1-3 subsets had defective proliferation, expressed lower levels of IL-7R, responded less to IL-7, IL-12, or IL-23 cytokines, and were more prone to apoptosis compared with those of healthy controls. CONCLUSION DOCK8 regulates human ILC3 expansion and survival, and more globally ILC cytokine signaling and proliferation. DOCK8 deficiency leads to loss of ILC3 from peripheral blood. ILC3 deficiency may contribute to the susceptibility of DOCK8-deficient patients to infections.
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31
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Chang RQ, Zhou WJ, Li DJ, Li MQ. Innate Lymphoid Cells at the Maternal-Fetal Interface in Human Pregnancy. Int J Biol Sci 2020; 16:957-969. [PMID: 32140065 PMCID: PMC7053337 DOI: 10.7150/ijbs.38264] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Accepted: 01/06/2020] [Indexed: 12/12/2022] Open
Abstract
Pregnancy constitutes a major challenge to the maternal immune system, which must tolerate fetal alloantigen encoded by paternal genes. In addition to their role in inducing maternal-fetal immune tolerance, accumulating evidence indicates that decidual immune cells are involved in several processes required for a successful pregnancy, including trophoblast invasion as well as tissue and spiral artery remodeling. Innate lymphoid cells (ILCs), an important branch of the innate immune system, which has expanded rapidly in recent years, are strong actors in mucosal immunity, tissue homeostasis and metabolism regulation. With the recent identification of ILCs in the human decidua, the role of ILCs at the maternal-fetal interface raises concern. Herein, we review the presence and characterization of ILCs in the human decidua, as well as their function in normal pregnancy and pathological pregnancy, including reproductive failure, preeclampsia and others.
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Affiliation(s)
- Rui-Qi Chang
- Laboratory for Reproductive Immunology, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai 200082, People's Republic of China
| | - Wen-Jie Zhou
- Laboratory for Reproductive Immunology, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai 200082, People's Republic of China
| | - Da-Jin Li
- Laboratory for Reproductive Immunology, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai 200082, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University Shanghai Medical College, Shanghai 200082, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Shanghai, 200011, People's Republic of China
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32
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Di Luccia B, Gilfillan S, Cella M, Colonna M, Huang SCC. ILC3s integrate glycolysis and mitochondrial production of reactive oxygen species to fulfill activation demands. J Exp Med 2019; 216:2231-2241. [PMID: 31296736 PMCID: PMC6781001 DOI: 10.1084/jem.20180549] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 05/12/2019] [Accepted: 06/19/2019] [Indexed: 12/29/2022] Open
Abstract
Group 3 innate lymphoid cells (ILC3s) are the innate counterparts of Th17 that require the transcription factor RORγt for development and contribute to the defense against pathogens through IL-22 and IL-17 secretion. Proliferation and effector functions of Th17 require a specific mTOR-dependent metabolic program that utilizes high-rate glycolysis, while mitochondrial lipid oxidation and production of reactive oxygen species (mROS) support alternative T reg cell differentiation. Whether ILC3s employ a specific metabolic program is not known. Here, we find that ILC3s rely on mTOR complex 1 (mTORC1) for proliferation and production of IL-22 and IL-17A after in vitro activation and Citrobacter rodentium infection. mTORC1 induces activation of HIF1α, which reprograms ILC3 metabolism toward glycolysis and sustained expression of RORγt. However, in contrast to Th17, ILC3 activation requires mROS production; rather than inducing an alternative regulatory fate as it does in CD4 T cells, mROS stabilizes HIF1α and RORγt in ILC3s and thereby promotes their activation. We conclude that ILC3 activation relies on a metabolic program that integrates glycolysis with mROS production.
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Affiliation(s)
- Blanda Di Luccia
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
| | - Stanley Ching-Cheng Huang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH
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33
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Cella M, Gamini R, Sécca C, Collins PL, Zhao S, Peng V, Robinette ML, Schettini J, Zaitsev K, Gordon W, Bando JK, Yomogida K, Cortez V, Fronick C, Fulton R, Lin LL, Gilfillan S, Flavell RA, Shan L, Artyomov MN, Bowman M, Oltz EM, Jelinsky SA, Colonna M. Subsets of ILC3-ILC1-like cells generate a diversity spectrum of innate lymphoid cells in human mucosal tissues. Nat Immunol 2019; 20:980-991. [PMID: 31209406 PMCID: PMC6685551 DOI: 10.1038/s41590-019-0425-y] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Accepted: 05/15/2019] [Indexed: 12/19/2022]
Abstract
Innate lymphoid cells (ILCs) are tissue-resident lymphocytes categorized on the basis of their core regulatory programs and the expression of signature cytokines. Human ILC3s that produce the cytokine interleukin-22 convert into ILC1-like cells that produce interferon-γ in vitro, but whether this conversion occurs in vivo remains unclear. In the present study we found that ILC3s and ILC1s in human tonsils represented the ends of a spectrum that included additional discrete subsets. RNA velocity analysis identified an intermediate ILC3-ILC1 cluster, which had strong directionality toward ILC1s. In humanized mice, the acquisition of ILC1 features by ILC3s showed tissue dependency. Chromatin studies indicated that the transcription factors Aiolos and T-bet cooperated to repress regulatory elements active in ILC3s. A transitional ILC3-ILC1 population was also detected in the human intestine. We conclude that ILC3s undergo conversion into ILC1-like cells in human tissues in vivo, and that tissue factors and Aiolos were required for this process.
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Affiliation(s)
- Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- These authors contributed equally
| | - Ramya Gamini
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
- These authors contributed equally
| | - Cristiane Sécca
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Patrick L. Collins
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Present address: Department of Microbial Infection and Immunity, Ohio State University, Wexner School of Medicine, Columbus, OH 43210, USA
| | - Shanrong Zhao
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
| | - Vincent Peng
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Michelle L. Robinette
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Present address: Brigham and Women’s Hospital, Harvard Medical School, Boston MA 02115, USA
| | - Jorge Schettini
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
| | - Konstantin Zaitsev
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Present Address: Computer Technologies Department, ITMO University, St. Petersburg, Russia
| | - William Gordon
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
- Present address: Cogen Therapeutics, Cambridge MA 02139, USA
| | - Jennifer K. Bando
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Kentaro Yomogida
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Victor Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Present address: Department of Microbiology and Immunology, University of California, San Francisco, CA 94143, USA
| | - Catrina Fronick
- The McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Robert Fulton
- The McDonnell Genome Institute, Washington University School of Medicine, St. Louis, MO, USA
| | - Lih-Ling Lin
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
- Present address: Immunology and Inflammation, Sanofi, Cambridge MA 02139, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Richard A. Flavell
- Department of Immunobiology Yale University School of Medicine, New Haven, CT, USA
- Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT, USA
| | - Liang Shan
- Department of Medicine, Division of Infectious Diseases, Washington University School of Medicine, St. Louis, MO, USA
| | - Maxim N. Artyomov
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
| | - Michael Bowman
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
- Present address: Immunology and Inflammation, Sanofi, Cambridge MA 02139, USA
| | - Eugene M. Oltz
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
- Present address: Department of Microbial Infection and Immunity, Ohio State University, Wexner School of Medicine, Columbus, OH 43210, USA
| | - Scott A. Jelinsky
- Pfizer Worldwide Research and Development, Cambridge, MA, 02139, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St Louis, MO, USA
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The IRE1 endoplasmic reticulum stress sensor activates natural killer cell immunity in part by regulating c-Myc. Nat Immunol 2019; 20:865-878. [PMID: 31086333 PMCID: PMC6588410 DOI: 10.1038/s41590-019-0388-z] [Citation(s) in RCA: 105] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 03/29/2019] [Indexed: 01/04/2023]
Abstract
Natural killer (NK) cells are critical mediators of host immunity to pathogens. Here, we demonstrate that the endoplasmic reticulum stress sensor inositol-requiring enzyme 1 (IRE1α) and its substrate transcription factor X-box-binding protein 1 (XBP1) drive NK cell responses against viral infection and tumors in vivo. IRE1α-XBP1 were essential for expansion of activated mouse and human NK cells and are situated downstream of the mammalian target of rapamycin signaling pathway. Transcriptome and chromatin immunoprecipitation analysis revealed c-Myc as a new and direct downstream target of XBP1 for regulation of NK cell proliferation. Genetic ablation or pharmaceutical blockade of IRE1α downregulated c-Myc, and NK cells with c-Myc haploinsufficency phenocopied IRE1α-XBP1 deficiency. c-Myc overexpression largely rescued the proliferation defect in IRE1α-/- NK cells. Like c-Myc, IRE1α-XBP1 also promotes oxidative phosphorylation in NK cells. Overall, our study identifies a IRE1α-XBP1-cMyc axis in NK cell immunity, providing insight into host protection against infection and cancer.
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35
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Castro-Dopico T, Clatworthy MR. IgG and Fcγ Receptors in Intestinal Immunity and Inflammation. Front Immunol 2019; 10:805. [PMID: 31031776 PMCID: PMC6473071 DOI: 10.3389/fimmu.2019.00805] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/26/2019] [Indexed: 12/15/2022] Open
Abstract
Fcγ receptors (FcγR) are cell surface glycoproteins that mediate cellular effector functions of immunoglobulin G (IgG) antibodies. Genetic variation in FcγR genes can influence susceptibility to a variety of antibody-mediated autoimmune and inflammatory disorders, including systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA). More recently, however, genetic studies have implicated altered FcγR signaling in the pathogenesis of inflammatory bowel disease (IBD), a condition classically associated with dysregulated innate and T cell immunity. Specifically, a variant of the activating receptor, FcγRIIA, with low affinity for IgG, confers protection against the development of ulcerative colitis, a subset of IBD, leading to a re-evaluation of the role of IgG and FcγRs in gastrointestinal tract immunity, an organ system traditionally associated with IgA. In this review, we summarize our current understanding of IgG and FcγR function at this unique host-environment interface, from the pathogenesis of colitis and defense against enteropathogens, its contribution to maternal-fetal cross-talk and susceptibility to cancer. Finally, we discuss the therapeutic implications of this information, both in terms of how FcγR signaling pathways may be targeted for the treatment of IBD and how FcγR engagement may influence the efficacy of therapeutic monoclonal antibodies in IBD.
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Affiliation(s)
- Tomas Castro-Dopico
- Molecular Immunity Unit, MRC Laboratory of Molecular Biology, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Menna R. Clatworthy
- Molecular Immunity Unit, MRC Laboratory of Molecular Biology, Department of Medicine, University of Cambridge, Cambridge, United Kingdom
- NIHR Cambridge Biomedical Research CentreCambridge, United Kingdom
- Cellular Genetics, Wellcome Sanger Institute, Hinxton, United Kingdom
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36
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Abou-Samra E, Hickey Z, Aguilar OA, Scur M, Mahmoud AB, Pyatibrat S, Tu MM, Francispillai J, Mortha A, Carlyle JR, Rahim MMA, Makrigiannis AP. NKR-P1B expression in gut-associated innate lymphoid cells is required for the control of gastrointestinal tract infections. Cell Mol Immunol 2018; 16:868-877. [PMID: 30275537 DOI: 10.1038/s41423-018-0169-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 08/23/2018] [Indexed: 12/17/2022] Open
Abstract
Helper-type innate lymphoid cells (ILC) play an important role in intestinal homeostasis. Members of the NKR-P1 gene family are expressed in various innate immune cells, including natural killer (NK) cells, and their cognate Clr ligand family members are expressed in various specialized tissues, including the intestinal epithelium, where they may play an important role in mucosal-associated innate immune responses. In this study, we show that the inhibitory NKR-P1B receptor, but not the Ly49 receptor, is expressed in gut-resident NK cells, ILC, and a subset of γδT cells in a tissue-specific manner. ILC3 cells constitute the predominant cell subset expressing NKR-P1B in the gut lamina propria. The known NKR-P1B ligand Clr-b is broadly expressed in gut-associated cells of hematopoietic origin. The genetic deletion of NKR-P1B results in a higher frequency and number of ILC3 and γδT cells in the gut lamina propria. However, the function of gut-resident ILC3, NK, and γδT cells in NKR-P1B-deficient mice is impaired during gastrointestinal tract infection by Citrobacter rodentium or Salmonella typhimurium, resulting in increased systemic bacterial dissemination in NKR-P1B-deficient mice. Our findings highlight the role of the NKR-P1B:Clr-b recognition system in the modulation of intestinal innate immune cell functions.
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Affiliation(s)
- Elias Abou-Samra
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Zachary Hickey
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Oscar A Aguilar
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
| | - Michal Scur
- Department of Microbiology and Immunology, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada
| | - Ahmad Bakur Mahmoud
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada.,College of Applied Medical Sciences, Taibah University, Madinah Munawwarah, Saudi Arabia
| | - Sergey Pyatibrat
- Division of Anatomical Pathology, Department of Pathology and Laboratory Medicine, The Ottawa Hospital, University of Ottawa, 501 Smyth Road, Ottawa, ON, K1H 8L6, Canada
| | - Megan M Tu
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Jeffrey Francispillai
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, 451 Smyth Road, Ottawa, ON, K1H 8M5, Canada
| | - Arthur Mortha
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada
| | - James R Carlyle
- Department of Immunology, University of Toronto, 1 King's College Circle, Toronto, ON, M5S 1A8, Canada.,Sunnybrook Research Institute, 2075 Bayview Avenue, Toronto, ON, M4N 3M5, Canada
| | - Mir Munir A Rahim
- Department of Microbiology and Immunology, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada.
| | - Andrew P Makrigiannis
- Department of Microbiology and Immunology, Dalhousie University, 5850 College Street, Halifax, NS, B3H 4R2, Canada.
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37
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Seshadri S, Pope RL, Zenewicz LA. Glucocorticoids Inhibit Group 3 Innate Lymphocyte IL-22 Production. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:1267-1274. [PMID: 29980608 PMCID: PMC6082413 DOI: 10.4049/jimmunol.1800484] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 06/15/2018] [Indexed: 01/15/2023]
Abstract
Glucocorticoids (GCs) are commonly prescribed to patients with a variety of inflammatory disorders, including inflammatory bowel disease (IBD). GCs mediate their immunomodulatory effects through many different mechanisms and target multiple signaling pathways. The GC dexamethasone downmodulates innate and adaptive immune cell activation. IBD is the manifestation of a dysregulated immune response involving many different immune cells. Group 3 innate lymphocytes (ILC3s) have critical roles in mucosal inflammation. ILC3s secrete high levels of the cytokine IL-22, promoting epithelial proliferation, antimicrobial peptides, and mucins. In this study, we examined the effects of dexamethasone on IL-22 production by ILC3s. We found that dexamethasone suppressed IL-23-mediated IL-22 production in human and mouse ILC3s. This was mediated in part through dexamethasone modulation of the NF-κB pathway. Inhibition of NF-κB signaling with a small molecule inhibitor also downmodulated IL-23- and IL-1β-mediated IL-22 production in ILC3s. These findings implicate NF-κB as a regulator of IL-22 in ILC3s and likely have repercussions on GC treatment of IBD patients.
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Affiliation(s)
- Sudarshan Seshadri
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104
| | - Rosemary L Pope
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104
| | - Lauren A Zenewicz
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104
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38
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Bando JK, Gilfillan S, Song C, McDonald KG, Huang SCC, Newberry RD, Kobayashi Y, Allan DSJ, Carlyle JR, Cella M, Colonna M. The Tumor Necrosis Factor Superfamily Member RANKL Suppresses Effector Cytokine Production in Group 3 Innate Lymphoid Cells. Immunity 2018; 48:1208-1219.e4. [PMID: 29858011 DOI: 10.1016/j.immuni.2018.04.012] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Revised: 12/29/2017] [Accepted: 04/11/2018] [Indexed: 02/06/2023]
Abstract
While signals that activate group 3 innate lymphoid cells (ILC3s) have been described, the factors that negatively regulate these cells are less well understood. Here we found that the tumor necrosis factor (TNF) superfamily member receptor activator of nuclear factor κB ligand (RANKL) suppressed ILC3 activity in the intestine. Deletion of RANKL in ILC3s and T cells increased C-C motif chemokine receptor 6 (CCR6)+ ILC3 abundance and enhanced production of interleukin-17A (IL-17A) and IL-22 in response to IL-23 and during infection with the enteric murine pathogen Citrobacter rodentium. Additionally, CCR6+ ILC3s produced higher amounts of the master transcriptional regulator RORγt at steady state in the absence of RANKL. RANKL-mediated suppression was independent of T cells, and instead occurred via interactions between CCR6+ ILC3s that expressed both RANKL and its receptor, RANK. Thus, RANK-RANKL interactions between ILC3s regulate ILC3 abundance and activation, suggesting that cell clustering may control ILC3 activity.
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Affiliation(s)
- Jennifer K Bando
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Christina Song
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Keely G McDonald
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Stanley C-C Huang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Rodney D Newberry
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Yasuhiro Kobayashi
- Institute for Oral Science, Matsumoto Dental University, 1780 Hirooka Gohara, Shiojiri Nagano, 399-0781, Japan
| | - David S J Allan
- Department of Immunology, University of Toronto, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada
| | - James R Carlyle
- Department of Immunology, University of Toronto, Sunnybrook Research Institute, Toronto, ON, M4N 3M5, Canada
| | - Marina Cella
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, 63110, USA.
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39
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Mortha A, Burrows K. Cytokine Networks between Innate Lymphoid Cells and Myeloid Cells. Front Immunol 2018; 9:191. [PMID: 29467768 PMCID: PMC5808287 DOI: 10.3389/fimmu.2018.00191] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 01/22/2018] [Indexed: 12/30/2022] Open
Abstract
Innate lymphoid cells (ILCs) are an essential component of the innate immune system in vertebrates. They are developmentally rooted in the lymphoid lineage and can diverge into at least three transcriptionally distinct lineages. ILCs seed both lymphoid and non-lymphoid tissues and are locally self-maintained in tissue-resident pools. Tissue-resident ILCs execute important effector functions making them key regulator in tissue homeostasis, repair, remodeling, microbial defense, and anti-tumor immunity. Similar to T lymphocytes, ILCs possess only few sensory elements for the recognition of non-self and thus depend on extrinsic cellular sensory elements residing within the tissue. Myeloid cells, including mononuclear phagocytes (MNPs), are key sentinels of the tissue and are able to translate environmental cues into an effector profile that instructs lymphocyte responses. The adaptation of myeloid cells to the tissue state thus influences the effector program of ILCs and serves as an example of how environmental signals are integrated into the function of ILCs via a tissue-resident immune cell cross talks. This review summarizes our current knowledge on the role of myeloid cells in regulating ILC functions and discusses how feedback communication between ILCs and myeloid cells contribute to stabilize immune homeostasis in order to maintain the healthy state of an organ.
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Affiliation(s)
- Arthur Mortha
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Kyle Burrows
- Department of Immunology, University of Toronto, Toronto, ON, Canada
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40
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Kostrzewski T, Borg AJ, Meng Y, Filipovic I, Male V, Wack A, DiMaggio PA, Brady HJM. Multiple Levels of Control Determine How E4bp4/Nfil3 Regulates NK Cell Development. THE JOURNAL OF IMMUNOLOGY 2018; 200:1370-1381. [PMID: 29311361 DOI: 10.4049/jimmunol.1700981] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 11/25/2017] [Indexed: 01/24/2023]
Abstract
The transcription factor E4bp4/Nfil3 has been shown to have a critical role in the development of all innate lymphoid cell types including NK cells. In this study, we show that posttranslational modifications of E4bp4 by either SUMOylation or phosphorylation have profound effects on both E4bp4 function and NK cell development. We examined the activity of E4bp4 mutants lacking posttranslational modifications and found that Notch1 was a novel E4bp4 target gene. We observed that abrogation of Notch signaling impeded NK cell production and the total lack of NK cell development from E4bp4-/- progenitors was completely rescued by short exposure to Notch peptide ligands. This work reveals both novel mechanisms in NK cell development by a transcriptional network including E4bp4 with Notch, and that E4bp4 is a central hub to process extrinsic stimuli.
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Affiliation(s)
- Tomasz Kostrzewski
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Aaron J Borg
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom; and
| | - Yiran Meng
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Iva Filipovic
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Victoria Male
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom
| | - Andreas Wack
- Francis Crick Institute, London NW7 1AA, United Kingdom
| | - Peter A DiMaggio
- Department of Chemical Engineering, Imperial College London, London SW7 2AZ, United Kingdom; and
| | - Hugh J M Brady
- Department of Life Sciences, Imperial College London, London SW7 2AZ, United Kingdom;
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41
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Seehus CR, Kadavallore A, Torre BDL, Yeckes AR, Wang Y, Tang J, Kaye J. Alternative activation generates IL-10 producing type 2 innate lymphoid cells. Nat Commun 2017; 8:1900. [PMID: 29196657 PMCID: PMC5711851 DOI: 10.1038/s41467-017-02023-z] [Citation(s) in RCA: 147] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 10/27/2017] [Indexed: 02/06/2023] Open
Abstract
Type 2 innate lymphoid cells (ILC2) share cytokine and transcription factor expression with CD4+ Th2 cells, but functional diversity of the ILC2 lineage has yet to be fully explored. Here, we show induction of a molecularly distinct subset of activated lung ILC2, termed ILC210. These cells produce IL-10 and downregulate some pro-inflammatory genes. Signals that generate ILC210 are distinct from those that induce IL-13 production, and gene expression data indicate that an alternative activation pathway leads to the generation of ILC210. In vivo, IL-2 enhances ILC210 generation and is associated with decreased eosinophil recruitment to the lung. Unlike most activated ILC2, the ILC210 population contracts after cessation of stimulation in vivo, with maintenance of a subset that can be recalled by restimulation, analogous to T-cell effector cell and memory cell generation. These data demonstrate the generation of a previously unappreciated IL-10 producing ILC2 effector cell population.
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Affiliation(s)
- Corey R Seehus
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA
| | - Asha Kadavallore
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA
| | - Brian de la Torre
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA
| | - Alyson R Yeckes
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA
| | - Yizhou Wang
- Genomics Core Facility, Cedars-Sinai Medical Center, 8723 Alden Drive, Los Angeles, CA, 90048, USA
| | - Jie Tang
- Genomics Core Facility, Cedars-Sinai Medical Center, 8723 Alden Drive, Los Angeles, CA, 90048, USA
| | - Jonathan Kaye
- Research Division of Immunology, Departments of Biomedical Sciences and Medicine, Samuel Oschin Comprehensive Cancer Institute, Cedars-Sinai Medical Center, 8700 Beverly Blvd., Los Angeles, CA, 90048, USA.
- Department of Medicine, David Geffen School of Medicine, University of California, Los Angeles, 10833 Le Conte Ave., Los Angeles, CA, 90095, USA.
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42
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Seshadri S, Allan DSJ, Carlyle JR, Zenewicz LA. Bacillus anthracis lethal toxin negatively modulates ILC3 function through perturbation of IL-23-mediated MAPK signaling. PLoS Pathog 2017; 13:e1006690. [PMID: 29059238 PMCID: PMC5695638 DOI: 10.1371/journal.ppat.1006690] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 11/02/2017] [Accepted: 10/10/2017] [Indexed: 12/30/2022] Open
Abstract
Bacillus anthracis, the causative agent of anthrax, secretes lethal toxin that down-regulates immune functions. Translocation of B. anthracis across mucosal epithelia is key for its dissemination and pathogenesis. Group 3 innate lymphocytes (ILC3s) are important in mucosal barrier maintenance due to their expression of the cytokine IL-22, a critical regulator of tissue responses and repair during homeostasis and inflammation. We found that B. anthracis lethal toxin perturbed ILC3 function in vitro and in vivo, revealing an unknown IL-23-mediated MAPK signaling pathway. Lethal toxin had no effects on the canonical STAT3-mediated IL-23 signaling pathway. Rather lethal toxin triggered the loss of several MAP2K kinases, which correlated with reduced activation of downstream ERK1/2 and p38, respectively. Inhibition studies showed the importance of MAPK signaling in IL-23-mediated production of IL-22. Our finding that MAPK signaling is required for optimal IL-22 production in ILC3s may lead to new approaches for targeting IL-22 biology.
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Affiliation(s)
- Sudarshan Seshadri
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
| | - David S. J. Allan
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - James R. Carlyle
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Research Institute, Toronto, Ontario, Canada
| | - Lauren A. Zenewicz
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, United States of America
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43
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A Reproducible Method for Isolation and In Vitro Culture of Functional Human Lymphoid Stromal Cells from Tonsils. PLoS One 2016; 11:e0167555. [PMID: 27907202 PMCID: PMC5132289 DOI: 10.1371/journal.pone.0167555] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Accepted: 11/16/2016] [Indexed: 12/11/2022] Open
Abstract
The stromal compartment of secondary lymphoid organs is classicaly known for providing a mechanical scaffold for the complex interactions between hematopoietic cells during immune activation as well as for providing a niche which is favorable for survival of lymphocytes. In recent years, it became increasingly clear that these cells also play an active role during such a response. Currently, knowledge of the interactions between human lymphoid stroma and hematopoietic cells is still lacking and most insight is based on murine systems. Although methods to isolate stromal cells from tonsils have been reported, data on stability in culture, characterization, and functional properties are lacking. Here, we describe a reproducible and easy method for isolation and in vitro culture of functional human lymphoid stromal cells from palatine tonsils. The cells isolated express markers and characteristics of T cell zone fibroblastic reticular cells (FRCs) and react to inflammatory stimuli by upregulating inflammatory cytokines and chemokines as well as adhesion molecules, as previously described for mouse lymphoid stroma. Also, cultured tonsil stromal cells support survival of human innate lymphoid cells, showing that these stromal cells can function as bone fide FRCs, providing a favorable microenvironment for hematopoietic cells.
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44
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Lo BC, Gold MJ, Hughes MR, Antignano F, Valdez Y, Zaph C, Harder KW, McNagny KM. The orphan nuclear receptor ROR alpha and group 3 innate lymphoid cells drive fibrosis in a mouse model of Crohn's disease. Sci Immunol 2016; 1:eaaf8864. [PMID: 28670633 PMCID: PMC5489332 DOI: 10.1126/sciimmunol.aaf8864] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Accepted: 08/09/2016] [Indexed: 12/16/2022]
Abstract
Fibrosis is the result of dysregulated tissue regeneration and is characterized by excessive accumulation of matrix proteins that become detrimental to tissue function. In Crohn's disease, this manifests itself as recurrent gastrointestinal strictures for which there is no effective therapy beyond surgical intervention. Using a model of infection-induced chronic gut inflammation, we show that Rora-deficient mice are protected from fibrosis; infected intestinal tissues display diminished pathology, attenuated collagen deposition and reduced fibroblast accumulation. Although Rora is best known for its role in ILC2 development, we find that Salmonella-induced fibrosis is independent of eosinophils, STAT6 signaling and Th2 cytokine production arguing that this process is largely ILC2-independent. Instead, we observe reduced levels of ILC3- and T cell-derived IL-17A and IL-22 in infected gut tissues. Furthermore, using Rorasg/sg /Rag1-/- bone marrow chimeric mice, we show that restoring ILC function is sufficient to re-establish IL-17A and IL-22 production and a profibrotic phenotype. Our results show that RORα-dependent ILC3 functions are pivotal in mediating gut fibrosis and they offer an avenue for therapeutic intervention in Crohn's-like diseases.
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Affiliation(s)
- Bernard C. Lo
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
| | - Matthew J. Gold
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
| | - Michael R. Hughes
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
| | - Frann Antignano
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
| | - Yanet Valdez
- STEMCELL Technologies Incorporated, Vancouver, British Columbia, V6A 1B6
| | - Colby Zaph
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Monash University, Clayton, VIC, 3800, Australia
| | - Kenneth W. Harder
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, V6T 1Z3
| | - Kelly M. McNagny
- The Biomedical Research Centre, University of British Columbia, V6T 1Z3
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45
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Bessman NJ, Sonnenberg GF. Emerging roles for antigen presentation in establishing host-microbiome symbiosis. Immunol Rev 2016; 272:139-50. [PMID: 27319348 PMCID: PMC4916850 DOI: 10.1111/imr.12425] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Trillions of beneficial bacteria inhabit the intestinal tract of healthy mammals from birth. Accordingly, mammalian hosts have evolved a series of complementary and redundant pathways to limit pathologic immune responses against these bacteria, while simultaneously protecting against enteric pathogen invasion. These pathways can be generically responsive to the presence of any commensal bacteria and innate in nature, as for IL-22-related pathways. Alternatively, specific bacterial antigens can drive a distinct set of adaptive immune cell responses, including IgA affinity maturation and secretion, and a recently described pathway of intestinal selection whereby MHCII(+) ILC3 deletes commensal bacteria-reactive CD4 T cells. These pathways can either promote or inhibit colonization by specific subsets of commensal bacteria, and cooperatively maintain intestinal homeostasis. In this review, we will highlight recent developments in understanding how these diverse pathways complement each other to cooperatively shape the symbiotic relationship between commensal bacteria and mammalian hosts.
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Affiliation(s)
- Nicholas J Bessman
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY, USA
| | - Gregory F Sonnenberg
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, New York, NY, USA
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, New York, NY, USA
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Robinette ML, Fuchs A, Cortez VS, Lee JS, Wang Y, Durum SK, Gilfillan S, Colonna M. Transcriptional programs define molecular characteristics of innate lymphoid cell classes and subsets. Nat Immunol 2015; 16:306-17. [PMID: 25621825 PMCID: PMC4372143 DOI: 10.1038/ni.3094] [Citation(s) in RCA: 518] [Impact Index Per Article: 57.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Accepted: 12/22/2014] [Indexed: 12/14/2022]
Abstract
The recognized diversity of innate lymphoid cells (ILCs) is rapidly expanding. Three ILC classes have emerged, ILC1, ILC2 and ILC3, with ILC1 and ILC3 including several subsets. The classification of some subsets is unclear, and it remains controversial whether natural killer (NK) cells and ILC1 cells are distinct cell types. To address these issues, we analyzed gene expression in ILCs and NK cells from mouse small intestine, spleen and liver, as part of the Immunological Genome Project. The results showed unique gene-expression patterns for some ILCs and overlapping patterns for ILC1 cells and NK cells, whereas other ILC subsets remained indistinguishable. We identified a transcriptional program shared by small intestine ILCs and a core ILC signature. We revealed and discuss transcripts that suggest previously unknown functions and developmental paths for ILCs.
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Affiliation(s)
- Michelle L Robinette
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Anja Fuchs
- Department of Surgery, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Victor S Cortez
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Jacob S Lee
- Merck Research Laboratories, Palo Alto, California, USA
| | - Yaming Wang
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Scott K Durum
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland, USA
| | - Susan Gilfillan
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri, USA
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