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Yuan M, Chang L, Gao P, Li J, Lu X, Hua M, Li X, Liu X, Lan Y. Synbiotics containing sea buckthorn polysaccharides ameliorate DSS-induced colitis in mice via regulating Th17/Treg homeostasis through intestinal microbiota and their production of BA metabolites and SCFAs. Int J Biol Macromol 2024; 276:133794. [PMID: 38992530 DOI: 10.1016/j.ijbiomac.2024.133794] [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: 03/24/2024] [Revised: 07/05/2024] [Accepted: 07/08/2024] [Indexed: 07/13/2024]
Abstract
Inflammatory Bowel Disease (IBD) is a chronic condition whose incidence has been rising globally. Synbiotic (SYN) is an effective means of preventing IBD. This study investigated the preventive effects and potential biological mechanisms of SYN (Bifidobacterium longum, Lactobacillus acidophilus, and sea buckthorn polysaccharides) on DSS-induced colitis in mice. The results indicated that dietary supplementation with SYN has a significant improvement effect on DSS mice. SYN ameliorated disease activity index (DAI), colon length, and intestinal barrier permeability in mice. In addition, RT-qPCR results indicated that after SYN intervention, the expression levels of pro-inflammatory factors (IL-6, IL-1β, TNF-α, and IL-17F) and transcription factor RORγt secreted by Th17 cells were significantly reduced, and the expression levels of anti-inflammatory factors (IL-10 and TGF-β) and transcription factor Foxp3 secreted by Treg cells were robustly increased. 16S rDNA sequencing analysis revealed that key intestinal microbiota related to Th17/Treg balance (Ligilactobacillus, Lactobacillus, Bacteroides, and Akkermansia) was significantly enriched. At the same time, a significant increase in microbial metabolites SCFAs and BAs was observed. We speculate that SYN may regulate the Th17/Treg balance by restructuring the structure and composition of the intestinal microbiota, thereby mitigating DSS-induced colitis.
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Affiliation(s)
- Mingyou Yuan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Lili Chang
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Pan Gao
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Jing Li
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xinyuan Lu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Mingfang Hua
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Xiulian Li
- School of Pharmacy, Binzhou Medical University, Yantai 264003, Shandong, China
| | - Xuebo Liu
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China
| | - Ying Lan
- Laboratory of Functional Chemistry and Nutrition of Food, College of Food Science and Engineering, Northwest A&F University, Yangling, China.
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Li S, Huo C, Liu A, Zhu Y. Mitochondria: a breakthrough in combating rheumatoid arthritis. Front Med (Lausanne) 2024; 11:1439182. [PMID: 39161412 PMCID: PMC11330793 DOI: 10.3389/fmed.2024.1439182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Accepted: 07/26/2024] [Indexed: 08/21/2024] Open
Abstract
As a chronic autoimmune disease with complex aetiology, rheumatoid arthritis (RA) has been demonstrated to be associated with mitochondrial dysfunction since mitochondrial dysfunction can affect the survival, activation, and differentiation of immune and non-immune cells involved in the pathogenesis of RA. Nevertheless, the mechanism behind mitochondrial dysfunction in RA remains uncertain. Accordingly, this review addresses the possible role and mechanisms of mitochondrial dysfunction in RA and discusses the potential and challenges of mitochondria as a potential therapeutic strategy for RA, thereby providing a breakthrough point in the prevention and treatment of RA.
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Affiliation(s)
- Shuang Li
- Graduate School of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Chenlu Huo
- Graduate School of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Anting Liu
- Graduate School of Anhui University of Chinese Medicine, Hefei, Anhui, China
| | - Yan Zhu
- Department of Geriatrics, The Second Affiliated Hospital of Anhui University of Chinese Medicine, Hefei, Anhui, China
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3
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Chen YT, Chang YM, Chen YL, Su YH, Liao CC, Chiang TH, Chen WY, Su YC. N-ethyl-N-nitrosourea (ENU)-induced C-terminal truncation of Runx3 results in autoimmune colitis associated with Th17/Treg imbalance. Immunol Lett 2024; 268:106869. [PMID: 38788802 DOI: 10.1016/j.imlet.2024.106869] [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: 06/05/2023] [Revised: 04/30/2024] [Accepted: 05/21/2024] [Indexed: 05/26/2024]
Abstract
Inflammatory bowel disease (IBD) is a chronic and progressive inflammatory intestinal disease that affects people around the world. The primary cause of IBD is an imbalance in the host immune response to intestinal flora. Several human genes, including IL10, STAT3, IRGM, ATG16L1, NOD2 and RUNX3, are associated with inappropriate immune responses in IBD. It has been reported that homozygous Runx3-knockout (ko) mice spontaneously develop colitis. However, the high mortality rate in these mice within the first two weeks makes it challenging to study the role of Runx3 in colitis. To address this issue, a spontaneous colitis (SC) mouse model carrying a C-terminal truncated form of Runx3 with Tyr319stop point mutation has been generated. After weaning, SC mice developed spontaneous diarrhea and exhibited prominent enlargement of the colon, accompanied by severe inflammatory cell infiltration. Results of immunofluorescence staining showed massive CD4+ T cell infiltration in the inflammatory colon of SC mice. Colonic IL-17A mRNA expression and serum IL-17A level were increased in SC mice. CD4+ T cells from SC mice produced stronger IL-17A than those from wildtype mice in Th17-skewing conditions in vitro. In addition, the percentages of Foxp3+ Treg cells as well as the RORγt+Foxp3+ Treg subset, known for its role in suppressing Th17 response in the gut, were notably lower in colon lamina propria of SC mice than those in WT mice. Furthermore, transfer of total CD4+ T cells from SC mice, but not from wildtype mice, into Rag1-ko host mice resulted in severe autoimmune colitis. In conclusion, the C-terminal truncated Runx3 caused autoimmune colitis associated with Th17/Treg imbalance. The SC mouse model is a feasible approach to investigate the effect of immune response on spontaneous colitis.
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Affiliation(s)
- Yi-Ting Chen
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan, ROC
| | - Yi-Mei Chang
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Yu-Ling Chen
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Yu-Hsuan Su
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Chia-Chi Liao
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Tien-Huang Chiang
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Wen-Yu Chen
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC
| | - Yu-Chia Su
- National Laboratory Animal Center, National Applied Research Laboratories, Taipei, Taiwan, ROC.
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4
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Lin L, Ren R, Xiong Q, Zheng C, Yang B, Wang H. Remodeling of T-cell mitochondrial metabolism to treat autoimmune diseases. Autoimmun Rev 2024:103583. [PMID: 39084278 DOI: 10.1016/j.autrev.2024.103583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/23/2024] [Accepted: 07/24/2024] [Indexed: 08/02/2024]
Abstract
T cells are key drivers of the pathogenesis of autoimmune diseases by producing cytokines, stimulating the generation of autoantibodies, and mediating tissue and cell damage. Distinct mitochondrial metabolic pathways govern the direction of T-cell differentiation and function and rely on specific nutrients and metabolic enzymes. Metabolic substrate uptake and mitochondrial metabolism form the foundational elements for T-cell activation, proliferation, differentiation, and effector function, contributing to the dynamic interplay between immunological signals and mitochondrial metabolism in coordinating adaptive immunity. Perturbations in substrate availability and enzyme activity may impair T-cell immunosuppressive function, fostering autoreactive responses and disrupting immune homeostasis, ultimately contributing to autoimmune disease pathogenesis. A growing body of studies has explored how metabolic processes regulate the function of diverse T-cell subsets in autoimmune diseases such as systemic lupus erythematosus (SLE), multiple sclerosis (MS), autoimmune hepatitis (AIH), inflammatory bowel disease (IBD), and psoriasis. This review describes the coordination of T-cell biology by mitochondrial metabolism, including the electron transport chain (ETC), oxidative phosphorylation, amino acid metabolism, fatty acid metabolism, and one‑carbon metabolism. This study elucidated the intricate crosstalk between mitochondrial metabolic programs, signal transduction pathways, and transcription factors. This review summarizes potential therapeutic targets for T-cell mitochondrial metabolism and signaling in autoimmune diseases, providing insights for future studies.
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Affiliation(s)
- Liyan Lin
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; Sichuan Clinical Research Center for Laboratory Medicine, Chengdu 610041, China; Laboratory Medicine Research Center of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ruyu Ren
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; Sichuan Clinical Research Center for Laboratory Medicine, Chengdu 610041, China; Laboratory Medicine Research Center of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qiao Xiong
- Department of Infectious Disease, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - Chunfu Zheng
- Department of Microbiology, Immunology & Infection Diseases, University of Calgary, Calgary, Alberta, Canada.
| | - Bin Yang
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China; Sichuan Clinical Research Center for Laboratory Medicine, Chengdu 610041, China; Laboratory Medicine Research Center of West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Huiqing Wang
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China.
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Zhang S, Li G, Qian K, Zou Y, Zheng X, Ai H, Lin F, Lei C, Hu S. Exosomes derived from cancer cells relieve inflammatory bowel disease in mice. J Drug Target 2024:1-13. [PMID: 38958251 DOI: 10.1080/1061186x.2024.2369876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2024] [Accepted: 06/13/2024] [Indexed: 07/04/2024]
Abstract
Exosome therapy has garnered significant attention due to its natural delivery capabilities, low toxicity, high biocompatibility, and potential for personalised treatment through engineering modifications. Recent studies have highlighted the ability of tumour cell-derived exosomes (TDEs) to interact with immune cells or modify the immune microenvironment to suppress host immune responses, as well as their unique homing ability to parental cells. The core question of this study is whether this immunomodulatory property of TDEs can be utilised for the immunotherapy of inflammatory diseases. In our experiments, we prepared exosomes derived from murine colon cancer cells CT26 (CT26 exo) using ultracentrifugation, characterised them, and conducted proteomic analysis. The therapeutic potential of CT26 exo was evaluated in our dextran sulphate sodium salt (DSS)-induced inflammatory bowel disease (IBD) mouse model. Compared to the control and 293 T exo treatment groups, mice treated with CT26 exo showed a reduction in the disease activity index (DAI) and colon shortening rate, with no noticeable weight loss. Haematoxylin and eosin (H&E) staining of colon paraffin sections revealed reduced inflammatory infiltration and increased epithelial goblet cells in the colons of CT26 exo-treated group. Furthermore, we conducted preliminary mechanistic explorations by examining the phenotyping and function of CD4+ T cells and dendritic cells (DCs) in the colonic lamina propria of mice. The results indicated that the ameliorative effect of CT26 exosomes might be due to their inhibition of pro-inflammatory cytokine secretion by colonic DCs and selective suppression of Th17 cell differentiation in the colon. Additionally, CT26 exo exhibited good biosafety. Our findings propose a novel exosome-based therapeutic approach for IBD and suggest the potential application of TDEs in the treatment of inflammatory diseases.
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Affiliation(s)
- Shuyi Zhang
- Department of Biophysics, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Guangyao Li
- Department of Biophysics, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Kewen Qian
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Yitan Zou
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
- Department of Respiratory and Critical Care Medicine, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Xinya Zheng
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
- School of Gongli Hospital Medical Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Hongru Ai
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
- School of Gongli Hospital Medical Technology, University of Shanghai for Science and Technology, Shanghai, China
| | - Fangxing Lin
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Changhai Lei
- Department of Biophysics, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
| | - Shi Hu
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University, Shanghai, China
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Chen Y, Li X, Sun R, Yang F, Tian W, Huang Q. Screening and experimental validation of diagnostic gene in ulcerative colitis with anti-TNF-α therapy. IUBMB Life 2024; 76:451-463. [PMID: 38269750 DOI: 10.1002/iub.2807] [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: 07/13/2023] [Accepted: 12/06/2023] [Indexed: 01/26/2024]
Abstract
In clinical practice, the diagnosis of ulcerative colitis (UC) mainly relies on a comprehensive analysis of a series of signs and symptoms of patients. The current biomarkers for diagnosis of UC and prognostic prediction of anti-TNF-α therapy are inaccurate. The present study aimed to perform an integrative analysis of gene expression profiles in patients with UC. A total of seven datasets from the GEO database that met our strict inclusion criteria were included. After identifying differentially expressed genes (DEGs) between UC patients and healthy individuals, the diagnostic and prognostic utility of the DEGs were then analyzed via least absolute shrinkage and selection operator and support-vector machine recursive feature elimination. Subgroup analyses of the treated and untreated groups, as well as the treatment-response group and non-response group, were also performed. Furthermore, the relationship between the expressions of UC-related genes and infiltration of immune cells in the course of treatment was also investigated. Immunohistochemical (IHC) assay was used to verify the gene expression in inflamed UC tissues. When considering all the applied methods, DUOX2, PI3, S100P, MMP7, and S100A8 had priority to be defined as the characteristic genes among DEGs. The area under curve (AUC) of the five genes, which were all consistently over-expressed, based on an external validation dataset, were all above 0.94 for UC diagnosis. Four of the five genes (DUOX2, PI3, MMP7, and S100A8) were down-regulated between treatment-responsive and nonresponsive patients. A significant difference was also observed concerning the infiltration of immune cells, including macrophage and neutrophil, between the two groups (treatment responsive and nonresponsive). The changes in the expression of DUOX2 and MMP7 based on the IHC assay were highly consistent with the results obtained in the current study. This confirmed the mild to moderate diagnostic and predictive value of DUOX2 and MMP7 in patients with UC. The conducted analyses showed that the expression profile of the five identified biomarkers accurately detects UC, whereas four of the five genes evidently predicted the response to anti-TNF-α therapy.
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Affiliation(s)
- Yuan Chen
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Xinfang Li
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Ran Sun
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Fan Yang
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Weiliang Tian
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
| | - Qian Huang
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, People's Republic of China
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Xu Y, Zheng C, Jiang P, Ji S, Ullah S, Zhao Y, Su D, Xu G, Zhang M, Zou X. Fraxinellone alleviates colitis-related intestinal fibrosis by blocking the circuit between PD-1 + Th17 cells and fibroblasts. Int Immunopharmacol 2024; 135:112298. [PMID: 38776854 DOI: 10.1016/j.intimp.2024.112298] [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: 01/21/2024] [Revised: 05/12/2024] [Accepted: 05/16/2024] [Indexed: 05/25/2024]
Abstract
BACKGROUND Excessive activation of colonic fibroblasts and differentiation of T helper 17 (Th17) cells are the key steps for intestinal fibrogenesis in the process of inflammatory bowel disease (IBD). Although both transforming growth factor-beta (TGF-β)/Mothers Against Decapentaplegic Homolog (SMAD) 3-induced fibroblasts activation and interleukin (IL)-6/signal transducer and activator of transcription (STAT) 3-induced Th17 differentiation have been well studied, the crosstalk between fibroblasts and Th17 cells in the process of intestinal fibrogenesis needs to be unveiled. METHODS In this study, the activation of colonic fibroblasts was induced with dextran sulfate sodium salt (DSS) and TGF-β in vivo and in vitro respectively. P-SMAD3 and its downstream targets were quantified using RT-PCR, western blot and immunofluorescence. The differentiation of programmed death 1 (PD-1) + Th17 and activation of fibroblasts were quantified by FACS. PD-1+ Th17 cells and fibroblasts were co-cultured and cytokines in the supernatant were tested by ELISA. The anti-fibrosis effects of different chemical compounds were validated in vitro and further confirmed in vivo. RESULTS The colonic fibroblasts were successfully activated by DSS and TGF-β in vivo and in vitro respectively, as activation markers of fibroblasts (p-SMAD3 and its downstream targets such as Acta2, Col1a1 and Ctgf) were significantly increased. The activated fibroblasts produced more IL-6 compared with their inactivated counterparts in vivo and in vitro. The proinflammatory cytokine IL-6 induced PD-1+ Th17 differentiation and TGF-β that in return promoted the activation of colonic fibroblasts. Fraxinellone inhibited TGF-β+ PD-1+ Th17 cells via deactivating STAT3. CONCLUSIONS The reciprocal stimulation constructed a circuit of PD-1+ Th17 cells and fibroblasts that accelerated the fibrosis process. Fraxinellone was selected as the potential inhibitor of the circuit of PD-1+ Th17 cells and fibroblasts in vivo and in vitro. Inhibiting the circuit of PD-1+ Th17 cells and fibroblasts could be a promising strategy to alleviate intestinal fibrosis.
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Affiliation(s)
- Yuejie Xu
- Department of Traditional Chinese and Western Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210046, China
| | - Chang Zheng
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Ping Jiang
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China
| | - Siqi Ji
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Shafi Ullah
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Yu Zhao
- University of Chicago, Pritzker School of Molecular Engineering, Chicago, IL, 60637, United States
| | - Dan Su
- FUJIFILM Diosynth Biotechnologies, Watertown 02472, MA, United States
| | - Guifang Xu
- Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
| | - Mingming Zhang
- Division of Gastroenterology and Hepatology, Shanghai Institute of Digestive Disease, NHC Key Laboratory of Digestive Diseases, State Key Laboratory for Oncogenes and Related Genes, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China.
| | - Xiaoping Zou
- Department of Traditional Chinese and Western Medicine, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing 210046, China; Department of Gastroenterology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing University, Nanjing 210093, China.
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Miao Y, Li Z, Feng J, Lei X, Shan J, Qian C, Li J. The Role of CD4 +T Cells in Nonalcoholic Steatohepatitis and Hepatocellular Carcinoma. Int J Mol Sci 2024; 25:6895. [PMID: 39000005 PMCID: PMC11240980 DOI: 10.3390/ijms25136895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 06/14/2024] [Accepted: 06/19/2024] [Indexed: 07/14/2024] Open
Abstract
Hepatocellular carcinoma (HCC) has become the fourth leading cause of cancer-related deaths worldwide; annually, approximately 830,000 deaths related to liver cancer are diagnosed globally. Since early-stage HCC is clinically asymptomatic, traditional treatment modalities, including surgical ablation, are usually not applicable or result in recurrence. Immunotherapy, particularly immune checkpoint blockade (ICB), provides new hope for cancer therapy; however, immune evasion mechanisms counteract its efficiency. In addition to viral exposure and alcohol addiction, nonalcoholic steatohepatitis (NASH) has become a major cause of HCC. Owing to NASH-related aberrant T cell activation causing tissue damage that leads to impaired immune surveillance, NASH-associated HCC patients respond much less efficiently to ICB treatment than do patients with other etiologies. In addition, abnormal inflammation contributes to NASH progression and NASH-HCC transition, as well as to HCC immune evasion. Therefore, uncovering the detailed mechanism governing how NASH-associated immune cells contribute to NASH progression would benefit HCC prevention and improve HCC immunotherapy efficiency. In the following review, we focused our attention on summarizing the current knowledge of the role of CD4+T cells in NASH and HCC progression, and discuss potential therapeutic strategies involving the targeting of CD4+T cells for the treatment of NASH and HCC.
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Affiliation(s)
- Yadi Miao
- School of Medicine, Chongqing University, Chongqing 400030, China
| | - Ziyong Li
- School of Medicine, Chongqing University, Chongqing 400030, China
| | - Juan Feng
- Center for Precision Medicine of Cancer, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Xia Lei
- School of Medicine, Chongqing University, Chongqing 400030, China
| | - Juanjuan Shan
- School of Medicine, Chongqing University, Chongqing 400030, China
- Center for Precision Medicine of Cancer, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Cheng Qian
- School of Medicine, Chongqing University, Chongqing 400030, China
- Center for Precision Medicine of Cancer, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
| | - Jiatao Li
- School of Medicine, Chongqing University, Chongqing 400030, China
- Center for Precision Medicine of Cancer, Chongqing Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, China
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Hu J, Liu W, Zou Y, Jiao C, Zhu J, Xu Q, Zou J, Sun Y, Guo W. Allosterically activating SHP2 by oleanolic acid inhibits STAT3-Th17 axis for ameliorating colitis. Acta Pharm Sin B 2024; 14:2598-2612. [PMID: 38828149 PMCID: PMC11143531 DOI: 10.1016/j.apsb.2024.03.017] [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: 10/07/2023] [Revised: 12/21/2023] [Accepted: 02/28/2024] [Indexed: 06/05/2024] Open
Abstract
Src homology 2 domain-containing tyrosine phosphatase 2 (SHP2) is an essential tyrosine phosphatase that is pivotal in regulating various cellular signaling pathways such as cell growth, differentiation, and survival. The activation of SHP2 has been shown to have a therapeutic effect in colitis and Parkinson's disease. Thus, the identification of SHP2 activators and a complete understanding of their mechanism is required. We used a two-step screening assay to determine a novel allosteric activator of SHP2 that stabilizes it in an open conformation. Oleanolic acid was identified as a suitable candidate. By binding to R362, K364, and K366 in the active center of the PTP domain, oleanolic acid maintained the active open state of SHP2, which facilitated the binding between SHP2 and its substrate. This oleanolic acid-activated SHP2 hindered Th17 differentiation by disturbing the interaction between STAT3 and IL-6Rα and inhibiting the activation of STAT3. Furthermore, via the activation of SHP2 and subsequent attenuation of the STAT3-Th17 axis, oleanolic acid effectively mitigated colitis in mice. This protective effect was abrogated by SHP2 knockout or administration of the SHP2 inhibitor SHP099. These findings underscore the potential of oleanolic acid as a promising therapeutic agent for treating inflammatory bowel diseases.
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Affiliation(s)
- Jinbo Hu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Wen Liu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Yi Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Chenyang Jiao
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Jiazhen Zhu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
| | - Jianjun Zou
- Department of Clinical Pharmacology, Nanjing First Hospital, Nanjing Medical University, Nanjing 210006, China
| | - Yang Sun
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou 221004, China
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing Drum Tower Hospital, School of Life Sciences, Nanjing University, Nanjing 210093, China
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10
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Peng X, Yang Y, Zhong R, Yang Y, Yan F, Liang N, Yuan S. Zinc and Inflammatory Bowel Disease: From Clinical Study to Animal Experiment. Biol Trace Elem Res 2024:10.1007/s12011-024-04193-6. [PMID: 38805169 DOI: 10.1007/s12011-024-04193-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Accepted: 04/18/2024] [Indexed: 05/29/2024]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract (GI) with a high incidence rate globally, and IBD patients are often accompanied by zinc deficiency. This review aims to summarize the potential therapeutic value of zinc supplementation in IBD clinical patients and animal models. Zinc supplementation can relieve the severity of IBD especially in patients with zinc deficiency. The clinical severity of IBD were mainly evaluated through some scoring methods involving clinical performance, endoscopic observation, blood biochemistry, and pathologic biopsy. Through conducting animal experiments, it has been found that zinc plays an important role in alleviating clinical symptoms and improving pathological lesions. In both clinical observation and animal experiment of IBD, the therapeutic mechanisms of zinc interventions have been found to be related to immunomodulation, intestinal epithelial repair, and gut microbiota's balance. Furthermore, the antioxidant activity of zinc was clarified in animal experiment. Appropriate zinc supplementation is beneficial for IBD therapy, and the present evidence highlights that alleviating zinc-deficient status can effectively improve the severity of clinical symptoms in IBD patients and animal models.
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Affiliation(s)
- Xi Peng
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Yingxiang Yang
- School of Life Sciences, China West Normal University, Nanchong, 637001, Sichuan, China
| | - Rao Zhong
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Yuexuan Yang
- School of Pharmacy, Sichuan Industrial Institute of Antibiotics, Chengdu University, No. 2025, Chengluo Avenue, Chengdu, 610106, Sichuan, China
| | - Fang Yan
- Geriatric Diseases Institute of Chengdu, Department of Geriatrics, Chengdu Fifth People's Hospital, Chengdu, China
| | - Na Liang
- Guangdong Key Laboratory of Nanomedicine, CAS Key Lab for Health Informatics, Shenzhen Engineering Laboratory of Nanomedicine and Nanoformulations, Shenzhen Institutes of Advanced Technology (SIAT), Chinese Academy of Sciences, Shenzhen, 518055, People's Republic of China
| | - Shibin Yuan
- School of Life Sciences, China West Normal University, Nanchong, 637001, Sichuan, China.
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11
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Xie ZX, Li Y, Yang AM, Wu D, Wang Q. Pathogenesis of chronic enteropathy associated with the SLCO2A1 gene: Hypotheses and conundrums. World J Gastroenterol 2024; 30:2505-2511. [PMID: 38817656 PMCID: PMC11135407 DOI: 10.3748/wjg.v30.i19.2505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/18/2024] [Accepted: 04/25/2024] [Indexed: 05/20/2024] Open
Abstract
Chronic enteropathy associated with the SLCO2A1 gene (CEAS) is a complex gastroenterological condition characterized by multiple ulcers in the small intestine with chronic bleeding and protein loss. This review explores the potential mechanisms underlying the pathogenesis of CEAS, focusing on the role of SLCO2A1-encoded prostaglandin transporter OATP2A1 and its impact on prostaglandin E2 (PGE2) levels. Studies have suggested that elevated PGE2 levels contribute to mucosal damage, inflammation, and disruption of the intestinal barrier. The effects of PGE2 on macrophage activation and Maxi-Cl channel functionality, as well as its interaction with nonsteroidal anti-inflammatory drugs play crucial roles in the progression of CEAS. Understanding the balance between its protective and pro-inflammatory effects and the complex interactions within the gastrointestinal tract can shed light on potential therapeutic targets for CEAS and guide the development of novel, targeted therapies.
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Affiliation(s)
- Zhi-Xin Xie
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
- Department of Clinical Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Yue Li
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Ai-Ming Yang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Dong Wu
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Qiang Wang
- State Key Laboratory of Complex Severe and Rare Diseases, Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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12
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Meng Q, Guo J, Lv K, Liu Y, Zhang J, Li M, Cheng X, Chen S, Huo X, Zhang Q, Chen Y, Li J. 5 S-Heudelotinone alleviates experimental colitis by shaping the immune system and enhancing the intestinal barrier in a gut microbiota-dependent manner. Acta Pharm Sin B 2024; 14:2153-2176. [PMID: 38799623 PMCID: PMC11120280 DOI: 10.1016/j.apsb.2024.02.020] [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: 09/06/2023] [Revised: 12/22/2023] [Accepted: 01/19/2024] [Indexed: 05/29/2024] Open
Abstract
Aberrant changes in the gut microbiota are implicated in many diseases, including inflammatory bowel disease (IBD). Gut microbes produce diverse metabolites that can shape the immune system and impact the intestinal barrier integrity, indicating that microbe-mediated modulation may be a promising strategy for preventing and treating IBD. Although fecal microbiota transplantation and probiotic supplementation are well-established IBD therapies, novel chemical agents that are safe and exert strong effects on the gut microbiota are urgently needed. Herein, we report the total synthesis of heudelotinone and the discovery of 5S-heudelotinone (an enantiomer) as a potent agent against experimental colitis that acts by modulating the gut microbiota. 5S-Heudelotinone alters the diversity and composition of the gut microbiota and increases the concentration of short-chain fatty acids (SCFAs); thus, it regulates the intestinal immune system by reducing proinflammatory immune cell numbers, and maintains intestinal mucosal integrity by modulating tight junctions (TJs). Moreover, 5S-heudelotinone (2) ameliorates colitis-associated colorectal cancer (CAC) in an azoxymethane (AOM)/dextran sulfate sodium (DSS)-induced in situ carcinoma model. Together, these findings reveal the potential of a novel natural product, namely, 5S-heudelotinone, to control intestinal inflammation and highlight that this product is a safe and effective candidate for the treatment of IBD and CAC.
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Affiliation(s)
- Qing Meng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Jianshuang Guo
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Ke Lv
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | - Yang Liu
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Jin Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Mingyue Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Xirui Cheng
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Shenghua Chen
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | | | - Quan Zhang
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
| | - Yue Chen
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
| | - Jing Li
- State Key Laboratory of Medicinal Chemical Biology, College of Pharmacy, Nankai University, Tianjin 300353, China
- College of Chemistry and Frontiers Science Center for New Organic Matter, Haihe Laboratory of Sustainable Chemical Transformations, Nankai University, Tianjin 300071, China
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13
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Zhang S, Zhong R, Tang S, Chen L, Zhang H. Metabolic regulation of the Th17/Treg balance in inflammatory bowel disease. Pharmacol Res 2024; 203:107184. [PMID: 38615874 DOI: 10.1016/j.phrs.2024.107184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/28/2024] [Accepted: 04/11/2024] [Indexed: 04/16/2024]
Abstract
Inflammatory bowel disease (IBD) is a long-lasting and inflammatory autoimmune condition affecting the gastrointestinal tract, impacting millions of individuals globally. The balance between T helper 17 (Th17) cells and regulatory T cells (Tregs) is pivotal in the pathogenesis and progression of IBD. This review summarizes the pivotal role of Th17/Treg balance in maintaining intestinal homeostasis, elucidating how its dysregulation contributes to the development and exacerbation of IBD. It comprehensively synthesizes the current understanding of how dietary factors regulate the metabolic pathways influencing Th17 and Treg cell differentiation and function. Additionally, this review presents evidence from the literature on the potential of dietary regimens to regulate the Th17/Treg balance as a strategy for the management of IBD. By exploring the intersection between diet, metabolic regulation, and Th17/Treg balance, the review reveals innovative therapeutic approaches for IBD treatment, offering a promising perspective for future research and clinical practice.
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Affiliation(s)
- Shunfen Zhang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China; College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Ruqing Zhong
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Shanlong Tang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
| | - Liang Chen
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Hongfu Zhang
- State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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14
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Abimannan T, Parthibane V, Le SH, Vijaykrishna N, Fox SD, Karim B, Kunduri G, Blankenberg D, Andresson T, Bamba T, Acharya U, Acharya JK. Sphingolipid biosynthesis is essential for metabolic rewiring during T H17 cell differentiation. SCIENCE ADVANCES 2024; 10:eadk1045. [PMID: 38657065 PMCID: PMC11042737 DOI: 10.1126/sciadv.adk1045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 03/22/2024] [Indexed: 04/26/2024]
Abstract
T helper 17 (TH17) cells are implicated in autoimmune diseases, and several metabolic processes are shown to be important for their development and function. In this study, we report an essential role for sphingolipids synthesized through the de novo pathway in TH17 cell development. Deficiency of SPTLC1, a major subunit of serine palmitoyl transferase enzyme complex that catalyzes the first and rate-limiting step of de novo sphingolipid synthesis, impaired glycolysis in differentiating TH17 cells by increasing intracellular reactive oxygen species (ROS) through enhancement of nicotinamide adenine dinucleotide phosphate oxidase 2 activity. Increased ROS leads to impaired activation of mammalian target of rapamycin C1 and reduced expression of hypoxia-inducible factor 1-alpha and c-Myc-induced glycolytic genes. SPTLCI deficiency protected mice from developing experimental autoimmune encephalomyelitis and experimental T cell transfer colitis. Our results thus show a critical role for de novo sphingolipid biosynthetic pathway in shaping adaptive immune responses with implications in autoimmune diseases.
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Affiliation(s)
| | - Velayoudame Parthibane
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Si-Hung Le
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Nagampalli Vijaykrishna
- Genomic Medicine Institute and Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Stephen D. Fox
- Mass Spectrometry Group, National Cancer Institute, Frederick, MD, USA
| | - Baktiar Karim
- Molecular Histopathology Laboratory, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - Govind Kunduri
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Daniel Blankenberg
- Genomic Medicine Institute and Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | | | - Takeshi Bamba
- Division of Metabolomics, Medical Institute of Bioregulation, Kyushu University, Fukuoka, Japan
| | - Usha Acharya
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, USA
| | - Jairaj K. Acharya
- Cancer and Developmental Biology Laboratory, National Cancer Institute, Frederick, MD, USA
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15
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Wang J, Gao Y, Yuan Y, Wang H, Wang Z, Zhang X. Th17 Cells and IL-17A in Ischemic Stroke. Mol Neurobiol 2024; 61:2411-2429. [PMID: 37884768 DOI: 10.1007/s12035-023-03723-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023]
Abstract
The neurological injury and repair mechanisms after ischemic stroke are complex. The inflammatory response is present throughout stroke onset and functional recovery, in which CD4 + T helper(Th) cells play a non-negligible role. Th17 cells, differentiated from CD4 + Th cells, are regulated by various extracellular signals, transcription factors, RNA, and post-translational modifications. Th17 cells specifically produce interleukin-17A(IL-17A), which has been reported to have pro-inflammatory effects in many studies. Recently, experimental researches showed that Th17 cells and IL-17A play an important role in promoting stroke pathogenesis (atherosclerosis), inducing secondary damage after stroke, and regulating post-stroke repair. This makes Th17 and IL-17A a possible target for the treatment of stroke. In this paper, we review the mechanism of action of Th17 cells and IL-17A in ischemic stroke and the progress of research on targeted therapy.
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Affiliation(s)
- Jingjing Wang
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China
| | - Yuxiao Gao
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China
| | - Yujia Yuan
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China
| | - Huan Wang
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China
| | - Zhao Wang
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China
| | - Xiangjian Zhang
- Department of Neurology, Second Hospital of Hebei Medical University, 215 Hepingxi Road, Shijiazhuang, 050000, Hebei, China.
- Hebei Collaborative Innovation Center for Cardio-Cerebrovascular Disease, Shijiazhuang, 050000, Hebei, China.
- Hebei Key Laboratory of Vascular Homeostasis, Shijiazhuang, 050000, Hebei, China.
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16
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Wen Y, Wang H, Tian D, Wang G. TH17 cell: a double-edged sword in the development of inflammatory bowel disease. Therap Adv Gastroenterol 2024; 17:17562848241230896. [PMID: 38390028 PMCID: PMC10883129 DOI: 10.1177/17562848241230896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 01/17/2024] [Indexed: 02/24/2024] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic nonspecific inflammatory disease of the gastrointestinal tract, and its pathogenesis has not been fully understood. Extensive dysregulation of the intestinal mucosal immune system is critical in the development and progression of IBD. T helper (Th) 17 cells have the characteristics of plasticity. They can transdifferentiate into subpopulations with different functions in response to different factors in the surrounding environment, thus taking on different roles in regulating the intestinal immune responses. In this review, we will focus on the plasticity of Th17 cells as well as the function of Th17 cells and their related cytokines in IBD. We will summarize their pathogenic and protective roles in IBD under different conditions, respectively, hoping to further deepen the understanding of the pathological mechanisms underlying IBD and provide insights for future treatment.
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Affiliation(s)
- Yue Wen
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Dean Tian
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
| | - Ge Wang
- Department of Gastroenterology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430000, China
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17
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Cheng N, Wang X, Zhou Y, Zhao X, Chen M, Zhao H, Cao W. Schisandra chinensis Bee Pollen Ameliorates Colitis in Mice by Modulating Gut Microbiota and Regulating Treg/Th17 Balance. Foods 2024; 13:585. [PMID: 38397562 PMCID: PMC10887782 DOI: 10.3390/foods13040585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/29/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
Colitis is a chronic disease associated with alterations in the composition of gut microbiota. Schisandra chinensis bee pollen extract (SCPE) has been proved to be rich in phenolic compounds and effective in modulating gut microbiota, but its effect on colitis and the underlying mechanism remains unclear. This study investigates the relationship between colitis amelioration and the gut microbiota regulation of SCPE via fecal microbial transplantation (FMT). The results showed that administration of 20.4 g/kg BW of SCPE could primely ameliorate colitis induced by dextran sulfate sodium (DSS) in mice, showing as more integration of colon tissue structure and the colonic epithelial barrier, as well as lower oxidative stress and inflammation levels compared with colitis mice. Moreover, SCPE supplement restored the balance of T regulatory (Treg) cells and T helper 17 (Th17) cells. Gut microbiota analysis showed SCPE treatment could reshape the gut microbiota balance and improve the abundance of gut microbiota, especially the beneficial bacteria (Akkermansia and Lactobacillus) related to the production of short-chain fatty acids and the regulation of immunity. Most importantly, the protection of 20.4 g/kg BW of SCPE on colitis can be perfectly transmitted by fecal microbiota. Therefore, the gut microbiota-SCFAS-Treg/Th17 axis can be the main mechanism for SCPE to ameliorate colitis. This study suggests that SCPE can be a new promising functional food for prevention and treatment of colitis by reshaping gut microbiota and regulating gut immunity.
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Affiliation(s)
- Ni Cheng
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
- Bee Product Research Center of Shaanxi Province, Xi’an 710065, China
| | - Xiaochao Wang
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
| | - Yaoyao Zhou
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
| | - Xuanxuan Zhao
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
| | - Minghao Chen
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
| | - Haoan Zhao
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
- Bee Product Research Center of Shaanxi Province, Xi’an 710065, China
| | - Wei Cao
- College of Food Science and Technology, Northwest University, Xi’an 710069, China; (N.C.); (X.W.); (H.Z.)
- Bee Product Research Center of Shaanxi Province, Xi’an 710065, China
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18
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Jiang K, Cao X, Wu H, Xu Y, Liu L, Qian H, Miao Z, Wang H, Ma Y. 2D Nanozymes Modulate Gut Microbiota and T-Cell Differentiation for Inflammatory Bowel Disease Management. Adv Healthc Mater 2024; 13:e2302576. [PMID: 37897434 DOI: 10.1002/adhm.202302576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/26/2023] [Indexed: 10/30/2023]
Abstract
Intestinal commensal microbiota dysbiosis and immune dysfunction are significant exacerbating factors in inflammatory bowel disease (IBD). To address these problems, Pluronic F-127-coated tungsten diselenide (WSe2 @F127) nanozymes are developed by simple liquid-phase exfoliation. The abundant valence transitions of elemental selenium (Se2- /Se4+ ) and tungsten (W4+ /W6+ ) enable the obtained WSe2 @F127 nanozymes to eliminate reactive oxygen/nitrogen species. In addition, the released tungsten ions are capable of inhibiting the proliferation of Escherichia coli. In a model of dextran sodium sulfate-induced colitis, WSe2 @F127 nanozymes modulate the gut microbiota by increasing the abundance of bacteria S24-7 and significantly reducing the abundance of Enterobacteriaceae. Moreover, WSe2 @F127 nanozymes inhibit T-cell differentiation and improve intestinal immune barrier function in a model of Crohn's disease. The WSe2 @F127 nanozymes effectively alleviate IBD by reducing oxidative stress damage, modulating intestinal microbial populations, and remodeling the immune barrier.
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Affiliation(s)
- Kai Jiang
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Xiangjing Cao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Haitao Wu
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Yifeng Xu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Lulu Liu
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Haisheng Qian
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230022, China
| | - Zhaohua Miao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Hua Wang
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Yan Ma
- School of Biomedical Engineering, Anhui Medical University, Hefei, 230022, China
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19
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Lu W, Cen J, Dai Q, Tao H, Peng L. Gut microbiota does not play a mediating role in the causal association between inflammatory bowel disease and several its associated extraintestinal manifestations: a Mendelian randomization study. Front Immunol 2024; 14:1296889. [PMID: 38288127 PMCID: PMC10822939 DOI: 10.3389/fimmu.2023.1296889] [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: 09/19/2023] [Accepted: 12/20/2023] [Indexed: 01/31/2024] Open
Abstract
Background and objectives Observational study has found inflammatory bowel disease to be associated with multiple extraintestinal manifestations. To this end, we characterized the causal association between inflammatory bowel disease and extraintestinal manifestations through a Mendelian randomization study and further explored the role of intestinal flora in inflammatory bowel disease and the extraintestinal manifestations associated with it. Materials and methods We genetically predicted the causal relationship between inflammatory bowel disease and twenty IBD-related extraintestinal manifestations (including sarcoidosis, iridocyclitis, interstitial lung disease, atopic dermatitis, ankylosing spondylitis, psoriatic arthropathies, primary sclerosing cholangitis, primary biliary cholangitis). We used the full genome-wide association study (GWAS) summary statistics on gut microbiota in 18,340 participants from 24 cohorts to explore its role in the casual relationships between IBD and IBD-related extraintestinal manifestations. Inverse variance weighting (IVW) was used as the main analytical method to assess the causal associations. We performed Cochran's Q test to examine the heterogeneity. To assess the robustness of the IVW results, we further performed sensitivity analyses including the weighted median method, MR-Egger regression, and Mendelian Randomization Pleiotropy RESidual Sum and Outlier (MR-PRESSO) test. The leave-one-out sensitivity analysis was further performed to monitor if significant associations were dominated by a single nucleotide polymorphism (SNP). Result A total of eight extraintestinal manifestations were found to be at elevated risk of development due to inflammatory bowel diseases. A total of 11 causal relationships were found between IBD and gut microbiota, four of which were stable. Between gut microbiota and these eight extraintestinal manifestations, a total of 67 nominal causal associations were identified, of which 13 associations were stable, and notably 4 associations were strongly correlated. Conclusion Through the two-sample MR analysis, we identified extraintestinal manifestations that were causally associated with inflammatory bowel disease and obtained multiple associations from inflammatory bowel disease and gut microbiota, and gut microbiota and extraintestinal manifestations in further analyses. These associations may provide useful biomarkers and potential targets for pathogenesis and treatment.
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Affiliation(s)
| | | | | | - Heqing Tao
- *Correspondence: Liang Peng, ; Heqing Tao,
| | - Liang Peng
- *Correspondence: Liang Peng, ; Heqing Tao,
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20
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Kim SH, Keum B, Kwak S, Byun J, Shin JM, Kim TH. Therapeutic Applications of Extracellular Vesicles in Inflammatory Bowel Disease. Int J Mol Sci 2024; 25:745. [PMID: 38255819 PMCID: PMC10815267 DOI: 10.3390/ijms25020745] [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: 11/29/2023] [Revised: 12/28/2023] [Accepted: 01/02/2024] [Indexed: 01/24/2024] Open
Abstract
The treatment landscape for inflammatory bowel disease (IBD) has undergone substantial advancements with the introduction of biologics. However, a considerable number of patients either show an immediate lack of response or lose responsiveness over time, necessitating the development of innovative and effective treatment approaches. Extracellular vesicles (EVs) are small lipid bilayer-enclosed structures that facilitate cell-to-cell molecular transfer and are integral to the pathogenesis of IBD. They play pivotal roles in maintaining the integrity of the intestinal epithelial barrier and the expulsion of cellular metabolites. The potential use of EVs as drug carriers or therapeutic agents has opened up a plethora of clinical applications. This review investigates the creation and content of EVs, their role in IBD development, and advances in their isolation and analytical techniques. Furthermore, the therapeutic promise they hold for IBD is explored, along with the latest research on their roles as IBD drug delivery systems.
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Affiliation(s)
- Sang Hyun Kim
- Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea; (S.H.K.)
| | - Bora Keum
- Department of Internal Medicine, Korea University College of Medicine, Seoul 02841, Republic of Korea; (S.H.K.)
| | - Sooun Kwak
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Junhyoung Byun
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Jae Min Shin
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Tae Hoon Kim
- Department of Otorhinolaryngology—Head & Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
- Mucosal Immunology Institute, Korea University College of Medicine, Seoul 02841, Republic of Korea
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21
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Cui X, Teng Y, Hu Y, Li Q, Pei H, Yang Z. Therapeutic potential of a synthetic dual JAK1/TYK2 inhibitor in inflammatory bowel disease. Int Immunopharmacol 2024; 126:111238. [PMID: 37988912 DOI: 10.1016/j.intimp.2023.111238] [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: 06/18/2023] [Revised: 11/05/2023] [Accepted: 11/13/2023] [Indexed: 11/23/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic and incurable disease with an increasing incidence rate and low mortality rate. Selectively inhibiting JAK1 and TYK2 has been proposed as a strategy to enhance the efficacy of such inhibitors while minimizing the potential side effects on other JAK isoforms. Our previous studies identified small molecule 18 as a JAK1/TYK2 inhibitor with high selectivity and a new structure. Specifically, the IC50 of 18 at the kinase level reached 39 nM and 21 nM for JAK1 and TYK2, respectively, with 10-fold selectivity over both JAK2 and JAK3. In in vitro studies, 18 dose-dependently inhibited cytokine-induced STAT phosphorylation downstream of the JAK1 and TYK2 signaling pathway. In pharmacokinetic experiments, 18 demonstrated an oral bioavailability of 59.82%, making it a promising candidate for further in vivo studies. Using two mouse models of acute ulcerative colitis (UC) induced by the administration of dextran sulfate sodium (DSS) or oxazolone (OXA), 18 dose-dependently showed a better therapeutic effect than the positive control drug tofacitinib. Additionally, after long-term administration for 32 days, 18 displayed low toxicity to mice and a high safety profile. Taken together, these findings suggest that 18 is a JAK1/TYK2 dual inhibitor with therapeutic effects superior to those of tofacitinib in the treatment of IBD. Moreover, 18 is also a suitable clinical candidate for further investigation in diseases with strong involvement from interferon and/or IL-12/IL-23 in their pathogenesis. This study confirmed the therapeutic effect and long-term safety of inhibiting JAK1 and TYK2 to treat IBD.
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Affiliation(s)
- Xue Cui
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yaxin Teng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yiguo Hu
- Department of Thyroid Surgery, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Qingqing Li
- Innovation Center of Nursing Research and Nursing Key Laboratory of Sichuan Province, West China Hospital, Sichuan University/West China School of Nursing, Sichuan University, China
| | - Heying Pei
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
| | - Zhuang Yang
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
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22
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Shbeer AM, Ahmed Robadi I. The role of Interleukin-21 in autoimmune Diseases: Mechanisms, therapeutic Implications, and future directions. Cytokine 2024; 173:156437. [PMID: 37972478 DOI: 10.1016/j.cyto.2023.156437] [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: 10/25/2023] [Revised: 11/05/2023] [Accepted: 11/07/2023] [Indexed: 11/19/2023]
Abstract
IL-21 is a multifunctional cytokine that regulates the functional activity of various immune cells. Initial studies have shown that IL-21 can influence the differentiation, proliferation and function of T and B cells, as well as promote the maturation and increase the cytotoxicity of CD8 + T cells and NK cells. During humoral immune responses, IL-21 has significant effects on B cell activation, differentiation and apoptosis. In addition, IL-21 promotes the differentiation of both naive and memory B cells, ultimately leading to the activation of plasma cells. The function of IL-21 in the immune system is complex, as it has the ability to either stimulate or inhibit immune responses. in addition, IL-21 facilitates the differentiation of naive and memory B cells into plasma cells. The functionality of IL-21 in the immune system is diverse, as it has the ability to stimulate or inhibit immune responses. This cytokine has been implicated in several diseases including cancer, allergies and autoimmune diseases. Research has suggested that this cytokine is involved in the development of autoimmune diseases such as systemic lupus erythematosus and rheumatoid arthritis. Several studies have suggested that inhibition of IL-21 has a therapeutic effect on autoimmune diseases. Therefore, targeting both the cytokine's receptor and IL-21 in autoimmune diseases may be an effective approach to reduce the severity of the disease or to treat it. This review will examine the biological effects of IL-21 on various immune cells and the role of the cytokine in autoimmune diseases.
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Affiliation(s)
- Abdullah M Shbeer
- Department of Surgery, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia.
| | - Ibrahim Ahmed Robadi
- Department of pathology, Faculty of Medicine, Jazan University, Jazan, Saudi Arabia
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23
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Li M, Gan C, Zhang R, Wang J, Wang Y, Zhu W, Liu L, Shang J, Zhao Q. TRAF5 regulates intestinal mucosal Th1/Th17 cell immune responses via Runx1 in colitis mice. Immunology 2023; 170:495-509. [PMID: 37575027 DOI: 10.1111/imm.13685] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 07/31/2023] [Indexed: 08/15/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic gastrointestinal inflammatory disease associated with CD4+ Th1 and Th17 cell immune responses. Tumour necrosis factor-associated factor 5 (TRAF5) deficiency has been shown to aggravate DSS-induced colitis. However, the potential role of TRAF5 in regulating CD4+ T cell immune responses in the pathogenesis of IBD remains unclear. TRAF5-/- CD4+ CD45RBhigh T cells and WT CD4+ CD45RBhigh T cells were transferred to Rag2-/- mice via intravenous (i.v.) tail injection, respectively, to establish a chronic colitis model. Adeno-associated virus (AAV)-mediated gene knockout technique was used to knock out runt-associated transcription factor 1 (Runx1) expression in vivo. Specific cytokines of Th1 and Th17 cells were detected by quantitative RT-PCR, immunohistochemistry, ELISA, and flow cytometry. In T-cell transfer colitis mice, the Rag2-/- mice reconstituted with TRAF5-/- CD4+ CD45RBhigh T cells showed more severe intestinal inflammation than the WT control group, which was characterised by increased expression of INF-γ, TNF-α, IL-17a. Furthermore, we found that the INF-γ+ CD4+ , IL17a+ CD4+ , and INF-γ+ IL17a+ CD4+ T cells in the intestinal mucosa of Rag2-/- mice reconstituted with TRAF5-/- CD4+ CD45RBhigh T cells were significantly higher than those of the WT control group by flow cytometry. Mechanistically, knockout Runx1 inhibited the differentiation of TRAF5-/- CD4+ T cells into Th1 and Th17 cells in the intestinal mucosa of T-cell transfer colitis mice. TRAF5 regulates Th1 and Th17 cell differentiation and immune response through Runx1 to participate in the pathogenesis of colitis. Thus targeting TRAF5 in CD4+ T cells may be a novel treatment for IBD.
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Affiliation(s)
- Mengting Li
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Caiqin Gan
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Runan Zhang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Jiahui Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Youwei Wang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Weining Zhu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Lan Liu
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Jian Shang
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
| | - Qiu Zhao
- Department of Gastroenterology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Hubei Clinical Center and Key Lab of Intestinal and Colorectal Diseases, Wuhan, China
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24
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Cai X, Li X, Liang C, Zhang M, Xu Y, Dong Z, Weng Y, Yu W. Mitochondrial DNA copy number is associated with Crohn's disease: a comprehensive Mendelian randomization analysis. Sci Rep 2023; 13:21016. [PMID: 38030696 PMCID: PMC10687096 DOI: 10.1038/s41598-023-48175-5] [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: 06/22/2023] [Accepted: 11/23/2023] [Indexed: 12/01/2023] Open
Abstract
Mitochondrial DNA plays a critical role in the pathophysiological process of inflammation. However, the relationship between mitochondrial DNA copy number (mtDNA-CN) and inflammatory bowel diseases (IBD) remains poorly understood. We conducted a comprehensive Mendelian randomization (MR) using three instrumental variables (IVs) to explore the causal associations between mtDNA-CN and IBD, including Crohn's disease (CD), ulcerative colitis (UC). MR-Egger regression, weighted median, inverse-variance weighted (IVW), and weighted mode methods were used to evaluate the potential causal associations. The robustness of the IVW estimates was determined using the leave-one-out sensitivity test. A meta-analysis was conducted to pool the results from the three sets of IVs. Upon analysis, the findings of the current study revealed that genetically predicted mtDNA-CN was not associated with IBD (CD + UC) and UC. The results of MR analyses between mtDNA-CN and CD risk were inconsistent by using three sets of IVs. After a meta-analysis, we found that genetically predicted mtDNA-CN was associated with CD risk (odds ratio = 2.09; 95% confidence interval: 1.37-3.18). This finding was also confirmed by multivariable MR analyses and remained robust when tested with the leave-one-out sensitivity test. In conclusion, genetically predicted mtDNA-CN was found to be associated with CD risk. Therefore, mtDNA levels in the blood could potentially be used as a marker for CD risk assessment. Further studies are needed to elucidate the underlying mechanisms and validate the results of this study.
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Affiliation(s)
- Xianlei Cai
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Xueying Li
- Department of Gastroenterology, The First Affiliated Hospital, Ningbo University, Ningbo, 315000, Zhejiang, China
| | - Chao Liang
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Miaozun Zhang
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Yuan Xu
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Zhebin Dong
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Yihui Weng
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China
| | - Weiming Yu
- Department of Gastrointestinal Surgery, The Lihuili Affiliated Hospital, Ningbo University (Ningbo Medical Center Lihuili Hospital), Ningbo, 315000, Zhejiang, China.
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25
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Bilal H, Khan MN, Khan S, Fang W, Chang W, Yin B, Song NJ, Liu Z, Zhang D, Yao F, Wang X, Wang Q, Cai L, Hou B, Wang J, Mao C, Liu L, Zeng Y. Risk of candidiasis associated with interleukin-17 inhibitors: Implications and management. Mycology 2023; 15:30-44. [PMID: 38558839 PMCID: PMC10977001 DOI: 10.1080/21501203.2023.2265664] [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: 06/07/2023] [Accepted: 09/27/2023] [Indexed: 04/04/2024] Open
Abstract
The application of interleukin-17 (IL-17) inhibitors, including secukinumab, ixekizumab, brodalumab, and bimekizumab, are associated with elevated risk of candidiasis. These medications interfere with the IL-17 pathway, which is essential for maintaining mucosal barriers and coordinating the immune response against Candida species. The observational data and clinical trials demonstrate the increased incidence of candidiasis in individuals treated with IL-17 inhibitors. Brodalumab and bimekizumab pose a greater risk than secukinumab in eliciting candidiasis, whereas the data regarding ixekizumab are equivocal. Higher doses and prolonged treatment duration of IL-17 inhibitors increase the risk of candidiasis by compromising the immune response against Candida species. Prior to prescribing IL-17 inhibitors, healthcare professionals should comprehensively evaluate patients' medical histories and assess their risk factors. Patients should be educated on the signs and symptoms of candidiasis to facilitate early detection and intervention. Future research should focus on identifying the risk factors associated with candidiasis in patients receiving IL-17 inhibitors. Prospective studies and long-term surveillance are required to explore the impact of specific inhibitors on the incidence and severity of candidiasis and to evaluate the effectiveness of combination therapies, such as concurrent use of IL-17 inhibitors and prophylactic antifungal agents.
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Affiliation(s)
- Hazrat Bilal
- Department of Dermatology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Muhammad Nadeem Khan
- Faculty of Biological Sciences, Department of Microbiology, Quaid-I-Azam University, Islamabad, Pakistan
| | - Sabir Khan
- Department of Dermatology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Wenjie Fang
- Department of Dermatology, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wenqiang Chang
- School of Pharmacy, Shandong University, Qingdao, Shandong, China
| | - Bin Yin
- Department of Dermatovenereology, Chengdu Second People's Hospital, Chengdu, China
| | - Ning-Jing Song
- Department of Dermatology, Tongren Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Zhongrong Liu
- Department of Dermatology, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Dongxing Zhang
- Department of Dermatology, Meizhou Dongshan Hospital, Meizhou, Guangdong, China
- Department of Dermatology, Meizhou People's Hospital, Meizhou, Guangdong, China
| | - Fen Yao
- Department of Pharmacy, Shantou University School Medical College, Shantou, China
| | - Xun Wang
- Department of Dermatology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Qian Wang
- Department of Dermatology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Lin Cai
- Department of Dermatology, Second Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Bing Hou
- Department of Clinical Laboratory, Skin and Venereal Diseases Prevention and Control Hospital of Shantou City, Shantou, Guangdong, China
| | - Jiayue Wang
- Department of Dermatology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Chunyan Mao
- Department of Dermatology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lingxi Liu
- Department of Dermatology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuebin Zeng
- Department of Dermatology, West China Second University Hospital, Sichuan University, Chengdu, Sichuan, China
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26
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Fan X, Shu P, Wang Y, Ji N, Zhang D. Interactions between neutrophils and T-helper 17 cells. Front Immunol 2023; 14:1279837. [PMID: 37920459 PMCID: PMC10619153 DOI: 10.3389/fimmu.2023.1279837] [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: 08/18/2023] [Accepted: 10/05/2023] [Indexed: 11/04/2023] Open
Abstract
Neutrophils comprise the majority of immune cells in human peripheral circulation, have potent antimicrobial activities, and are clinically significant in their abundance, heterogeneity, and subcellular localization. In the past few years, the role of neutrophils as components of the innate immune response has been studied in numerous ways, and these cells are crucial in fighting infections, autoimmune diseases, and cancer. T-helper 17 (Th17) cells that produce interleukin 17 (IL-17) are critical in fighting infections and maintaining mucosal immune homeostasis, whereas they mediate several autoimmune diseases. Neutrophils affect adaptive immune responses by interacting with adaptive immune cells. In this review, we describe the physiological roles of both Th17 cells and neutrophils and their interactions and briefly describe the pathological processes in which these two cell types participate. We provide a summary of relevant drugs targeting IL-17A and their clinical trials. Here, we highlight the interactions between Th17 cells and neutrophils in diverse pathophysiological situations.
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Affiliation(s)
- Xinzou Fan
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Panyin Shu
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ying Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Ning Ji
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Research Unit of Oral Carcinogenesis and Management, Chinese Academy of Medical Sciences, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Dunfang Zhang
- Department of Biotherapy, State Key Laboratory of Biotherapy and Cancer Center, Collaborative Innovation Center of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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27
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Xiang Y, Zhang M, Jiang D, Su Q, Shi J. The role of inflammation in autoimmune disease: a therapeutic target. Front Immunol 2023; 14:1267091. [PMID: 37859999 PMCID: PMC10584158 DOI: 10.3389/fimmu.2023.1267091] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 09/20/2023] [Indexed: 10/21/2023] Open
Abstract
Autoimmune diseases (AIDs) are immune disorders whose incidence and prevalence are increasing year by year. AIDs are produced by the immune system's misidentification of self-antigens, seemingly caused by excessive immune function, but in fact they are the result of reduced accuracy due to the decline in immune system function, which cannot clearly identify foreign invaders and self-antigens, thus issuing false attacks, and eventually leading to disease. The occurrence of AIDs is often accompanied by the emergence of inflammation, and inflammatory mediators (inflammatory factors, inflammasomes) play an important role in the pathogenesis of AIDs, which mediate the immune process by affecting innate cells (such as macrophages) and adaptive cells (such as T and B cells), and ultimately promote the occurrence of autoimmune responses, so targeting inflammatory mediators/pathways is one of emerging the treatment strategies of AIDs. This review will briefly describe the role of inflammation in the pathogenesis of different AIDs, and give a rough introduction to inhibitors targeting inflammatory factors, hoping to have reference significance for subsequent treatment options for AIDs.
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Affiliation(s)
- Yu Xiang
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan, Sichuan Academy of Medical Science & Sichuan Provincial People’s Hospital, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Mingxue Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Die Jiang
- School of Life Science and Engineering, Southwest Jiaotong University, Chengdu, China
| | - Qian Su
- Department of Health Management & Institute of Health Management, Sichuan Provincial People’s Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Jianyou Shi
- Department of Pharmacy, Personalized Drug Therapy Key Laboratory of Sichuan, Sichuan Academy of Medical Science & Sichuan Provincial People’s Hospital, Sichuan Provincial People’s Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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28
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Li J, Dou F, Hu S, Gao J. Involvement of adaptive immune responses in a model of subacute colitis induced with dextran sulfate sodium in C57BL/6 mice. Drug Discov Ther 2023; 17:294-298. [PMID: 37438111 DOI: 10.5582/ddt.2023.01015] [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] [Indexed: 07/14/2023]
Abstract
Inflammatory bowel disease (IBD) is a non-specific chronic intestinal inflammatory disorder. Pharmacotherapy serves as the main treatment strategy for IBD; however, the current medications have certain limitations, such as inefficacy and a tendency to induce tolerance, thereby requiring the development of innovative drugs to fulfill therapeutic requirements. A model of acute colitis induced with a solution of approx. 3% dextran sulfate sodium (DSS) has been widely used in preclinical drug development. Nevertheless, this model has some drawbacks, including rapid disease progression leading to mortality in some mice and disparities between the inflammatory characteristics of mice and the pathological features of human IBD. The current study found that mice freely consuming a lower concentration of a DSS solution (1-1.5%) for 10-15 days exhibited milder colitis symptoms. Continued consumption of the DSS solution for 15-20 days resulted in chronic inflammation in colon tissue, accompanied by a significant increase in the proportion of Th1 cells, indicating the involvement of adaptive immune responses. Subsequently, mice were treated with mesalazine or Centella triterpenes while concurrently consuming the DSS solution for 10 days. The treated mice had significant improvements in body weight and colon length compared to the control group. The advantages of this subacute model include minimal mortality among experimental mice and the fact that intestinal mucosal inflammation in mice resembles the pathological features of human IBD, enabling the assessment of drug efficacy against IBD.
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Affiliation(s)
- Jing Li
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, Shandong, China
| | - Fangzhou Dou
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, Shandong, China
| | - Shasha Hu
- Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jianjun Gao
- Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, Shandong, China
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29
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Xing J, Man C, Liu Y, Zhang Z, Peng H. Factors impacting the benefits and pathogenicity of Th17 cells in the tumor microenvironment. Front Immunol 2023; 14:1224269. [PMID: 37680632 PMCID: PMC10481871 DOI: 10.3389/fimmu.2023.1224269] [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: 05/17/2023] [Accepted: 08/07/2023] [Indexed: 09/09/2023] Open
Abstract
Tumor development is closely associated with a complex tumor microenvironment, which is composed of tumor cells, blood vessels, tumor stromal cells, infiltrating immune cells, and associated effector molecules. T helper type 17 (Th17) cells, which are a subset of CD4+ T cells and are renowned for their ability to combat bacterial and fungal infections and mediate inflammatory responses, exhibit context-dependent effector functions. Within the tumor microenvironment, different molecular signals regulate the proliferation, differentiation, metabolic reprogramming, and phenotypic conversion of Th17 cells. Consequently, Th17 cells exert dual effects on tumor progression and can promote or inhibit tumor growth. This review aimed to investigate the impact of various alterations in the tumor microenvironment on the antitumor and protumor effects of Th17 cells to provide valuable clues for the exploration of additional tumor immunotherapy strategies.
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Affiliation(s)
- Jie Xing
- Department of Laboratory Medicine, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Changfeng Man
- Department of Oncology, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Yingzhao Liu
- Department of Endocrinology, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
| | - Zhengdong Zhang
- Department of Environmental Genomics, Jiangsu Key Laboratory of Cancer Biomarkers, Prevention and Treatment, Collaborative Innovation Center for Cancer Personalized Medicine, Nanjing Medical University, Nanjing, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Huiyong Peng
- Department of Laboratory Medicine, The Affiliated People’s Hospital of Jiangsu University, Zhenjiang, China
- Department of Genetic Toxicology, The Key Laboratory of Modern Toxicology of Ministry of Education, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
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30
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Yan Y, Lei Y, Qu Y, Fan Z, Zhang T, Xu Y, Du Q, Brugger D, Chen Y, Zhang K, Zhang E. Bacteroides uniformis-induced perturbations in colonic microbiota and bile acid levels inhibit TH17 differentiation and ameliorate colitis developments. NPJ Biofilms Microbiomes 2023; 9:56. [PMID: 37580334 PMCID: PMC10425470 DOI: 10.1038/s41522-023-00420-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 07/14/2023] [Indexed: 08/16/2023] Open
Abstract
Inflammatory bowel disease (IBD) is associated with gut dysbiosis and can lead to colitis-associated malignancies. Bacteroides uniformis (Bu) regulates animal intestinal homeostasis; however, the mechanism by which it alleviates colitis in mice remains unknown. We investigated the effects of B. uniformis JCM5828 and its metabolites on female C57BL/6J mice with dextran sulfate sodium salt (DSS) induced colitis. Treatment with Bu considerably alleviated colitis progression and restored the mechanical and immune barrier protein expression. Additionally, Bu increased the abundance of the symbiotic bacteria Bifidobacterium and Lactobacillus vaginalis while decreasing that of pathogenic Escherichia-Shigella, and modulated intestinal bile acid metabolism. Bu largely regulated the expression of key regulatory proteins of the NF-κB and mitogen-activated protein kinase (MAPK) signaling pathways in colonic tissues and the differentiation of TH17 cells. However, Bu could not directly inhibit TH17 cell differentiation in vitro; it modulated the process in the lamina propria by participating in bile acid metabolism and regulating key metabolites (alpha-muricholic, hyodeoxycholic, and isolithocholic acid), thereby modulating the intestinal immune response. Our findings suggest that Bu or bile acid supplements are potential therapies for colitis and other diseases associated with intestinal barrier dysfunction.
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Affiliation(s)
- YiTing Yan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Yu Lei
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Ying Qu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Zhen Fan
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Ting Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Yangbin Xu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Qian Du
- College of Veterinary Medicine, Northwest A&F University, Yangling, 712100, China
| | - Daniel Brugger
- Institute of Animal Nutrition and Dietetics, Vetsuisse-Faculty, University of Zurich, 8057, Zurich, Switzerland
| | - Yulin Chen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China
| | - Ke Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
| | - Enping Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, 712100, China.
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Wang Z, Yin L, Xiong Z, Huang F, Yang N, Jiang F, Li H, Cui Y, Ren J, Cheng Z, Jia K, Lu T, Zhu J, Hu Q, Chen Y. Discovery of a Bromodomain and Extra Terminal Domain (BET) Inhibitor with the Selectivity for the Second Bromodomain (BD2) and the Capacity for the Treatment of Inflammatory Diseases. J Med Chem 2023; 66:10824-10848. [PMID: 37478496 DOI: 10.1021/acs.jmedchem.3c01028] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2023]
Abstract
Selective inhibitors targeting the first bromodomain (BD1) or the second bromodomain (BD2) of the bromodomain and extra terminal domain (BET) proteins have triggered extensive research to produce more specific agents. Herein, we described our efforts to design and synthesize a series of selective BET BD2 inhibitors with novel structures. Among them, compound 45 showed single-digit nanomolar potency against BRD4 BD2 (IC50: 1.6 nM) and a 328-fold selectivity for BRD4 BD2 over BRD4 BD1 (IC50: 524 nM). Besides, 45 possessed potent effects on regulating the differentiation of Th17 cells and reducing the levels of Th17-related cytokines by affecting the activation of STAT3 and NF-κB. Further studies demonstrated that 45 had significant therapeutic efficacy in mouse models of imiquimod (IMQ)-induced psoriasis and dextran sulfate sodium (DSS)-induced inflammatory bowel disease (IBD). This work provides a strong foundation for the development of selective BET BD2 inhibitors and the therapeutic strategy for psoriasis and IBD.
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Affiliation(s)
- Zhijie Wang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Li Yin
- School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Zhenghan Xiong
- School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Fei Huang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Na Yang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Fei Jiang
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Huili Li
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Yong Cui
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Jiwei Ren
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Zitian Cheng
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Kun Jia
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Tao Lu
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, P. R. China
| | - Jiapeng Zhu
- School of Medicine and Life Sciences, State Key Laboratory Cultivation Base for TCM Quality and Efficacy, Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing 210023, P. R. China
| | - Qinghua Hu
- School of Pharmacy, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
| | - Yadong Chen
- School of Science, China Pharmaceutical University, 639 Longmian Avenue, Nanjing 211198, P. R. China
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Hu C, Liao S, Lv L, Li C, Mei Z. Intestinal Immune Imbalance is an Alarm in the Development of IBD. Mediators Inflamm 2023; 2023:1073984. [PMID: 37554552 PMCID: PMC10406561 DOI: 10.1155/2023/1073984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/06/2023] [Accepted: 07/08/2023] [Indexed: 08/10/2023] Open
Abstract
Immune regulation plays a crucial role in human health and disease. Inflammatory bowel disease (IBD) is a chronic relapse bowel disease with an increasing incidence worldwide. Clinical treatments for IBD are limited and inefficient. However, the pathogenesis of immune-mediated IBD remains unclear. This review describes the activation of innate and adaptive immune functions by intestinal immune cells to regulate intestinal immune balance and maintain intestinal mucosal integrity. Changes in susceptible genes, autophagy, energy metabolism, and other factors interact in a complex manner with the immune system, eventually leading to intestinal immune imbalance and the onset of IBD. These events indicate that intestinal immune imbalance is an alarm for IBD development, further opening new possibilities for the unprecedented development of immunotherapy for IBD.
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Affiliation(s)
- Chunli Hu
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Shengtao Liao
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Lin Lv
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Chuanfei Li
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Zhechuan Mei
- Department of Gastroenterology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Li S. Modulation of immunity by tryptophan microbial metabolites. Front Nutr 2023; 10:1209613. [PMID: 37521424 PMCID: PMC10382180 DOI: 10.3389/fnut.2023.1209613] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 05/30/2023] [Indexed: 08/01/2023] Open
Abstract
Tryptophan (Trp) is an essential amino acid that can be metabolized via endogenous and exogenous pathways, including the Kynurenine Pathway, the 5-Hydroxyindole Pathway (also the Serotonin pathway), and the Microbial pathway. Of these, the Microbial Trp metabolic pathways in the gut have recently been extensively studied for their production of bioactive molecules. The gut microbiota plays an important role in host metabolism and immunity, and microbial Trp metabolites can influence the development and progression of various diseases, including inflammatory, cardiovascular diseases, neurological diseases, metabolic diseases, and cancer, by mediating the body's immunity. This review briefly outlines the crosstalk between gut microorganisms and Trp metabolism in the body, starting from the three metabolic pathways of Trp. The mechanisms by which microbial Trp metabolites act on organism immunity are summarized, and the potential implications for disease prevention and treatment are highlighted.
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Kim HW, Ko MK, Park SH, Hwang SY, Kim DH, Park SY, Ko YJ, Kim SM, Park JH, Lee MJ. Dectin-1 signaling coordinates innate and adaptive immunity for potent host defense against viral infection. Front Immunol 2023; 14:1194502. [PMID: 37334361 PMCID: PMC10272586 DOI: 10.3389/fimmu.2023.1194502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/20/2023] Open
Abstract
Background Most commercial foot-and-mouth disease (FMD) vaccines have various disadvantages, such as low antibody titers, short-lived effects, compromised host defense, and questionable safety. Objectives To address these shortcomings, we present a novel FMD vaccine containing Dectin-1 agonist, β-D-glucan, as an immunomodulatory adjuvant. The proposed vaccine was developed to effectively coordinate innate and adaptive immunity for potent host defense against viral infection. Methods We demonstrated β-D-glucan mediated innate and adaptive immune responses in mice and pigs in vitro and in vivo. The expressions of pattern recognition receptors, cytokines, transcription factors, and co-stimulatory molecules were promoted via FMD vaccine containing β-D-glucan. Results β-D-glucan elicited a robust cellular immune response and early, mid-, and long-term immunity. Moreover, it exhibited potent host defense by modulating host's innate and adaptive immunity. Conclusion Our study provides a promising approach to overcoming the limitations of conventional FMD vaccines. Based on the proposed vaccine's safety and efficacy, it represents a breakthrough among next-generation FMD vaccines.
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Khouri A, Moreno C, Niland B. New-Onset Crohn's Disease following Initiation of Secukinumab: A Case Report and Review of the Role of IL-17 in the Pathogenesis of Crohn's Disease. Case Rep Gastrointest Med 2023; 2023:1769290. [PMID: 37260537 PMCID: PMC10228216 DOI: 10.1155/2023/1769290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/02/2023] Open
Abstract
Patients with autoimmune conditions show a high expression of proinflammatory cytokines including interleukin (IL)-17. While IL-17 inhibitors have demonstrated efficacy in managing autoimmune disorders, rare instances of de novo or exacerbated inflammatory bowel disease (IBD) have been reported. The factors that affect the onset and severity remain unclear. Here, we present a case of a 38-year-old female who developed manifestations of Crohn's disease within 1 month of initiating secukinumab treatment for psoriatic arthritis, in addition to a review of the role of IL-17 in the pathophysiology of Crohn's disease.
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Affiliation(s)
- Anas Khouri
- Department of Internal Medicine, University of South Alabama, Mobile, AL, USA
| | - Cesar Moreno
- Department of Internal Medicine, University of South Alabama, Mobile, AL, USA
| | - Benjamin Niland
- Department of Internal Medicine, University of South Alabama, Mobile, AL, USA
- Division of Gastroenterology, University of South Alabama, Mobile, AL, USA
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36
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Liu Y, Xu T, Jiang W, Ma Y, Zhang Q, Chen N, Chu M, Chen F. Single-Cell Analyses of the Oral Mucosa Reveal Immune Cell Signatures. J Dent Res 2023; 102:514-524. [PMID: 36782103 DOI: 10.1177/00220345221145903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a common immune-related disease of the gastrointestinal tract that affects many people around the world. Extraintestinal manifestations of IBD have been frequently observed in recent years; one of these, periodontitis, has gained increasing attention. Periodontitis is a chronic inflammatory disease characterized by inflammation and destruction of periodontal tissues due to the disruption of host immune homeostasis. Clinical studies have revealed that periodontal inflammation is associated with IBD. However, the detailed heterogeneity of immune cells and their developmental relationships remain poorly understood at the single-cell level. In this study, we performed single-cell RNA (scRNA) sequencing to assess the transcriptome heterogeneity in periodontal tissues. We found the cellular composition and subclusters with specific gene expression profiles by uniform manifold approximation and projection. Pseudo-time analysis combined with gene enrichment analysis was performed to reveal cell states and key pathways. Ligand-receptor pairs revealed cell-cell communication among the immune cell types in periodontal tissues. Based on our analysis, we identified an essential role for Tcr+ macrophage, Prdx1+ neutrophil, and Mif+ T subpopulations with proinflammatory phenotype infiltration. Moreover, we examined the heterogeneity of monocytic cells and B cells. Collectively, the mapping of scRNA revealed the complex cellular landscape of oral mucosa immune cells and highlighted these immune cells as a previously unrecognized factor that may aggravate inflammation. Our analysis proves that periodontitis could exacerbate colitis and provides novel ideas for controlling and preventing IBD exacerbations.
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Affiliation(s)
- Y Liu
- Central Laboratory, Peking University School of Stomatology, Beijing, China
| | - T Xu
- Central Laboratory, Peking University School of Stomatology, Beijing, China
| | - W Jiang
- Department of Periodontology, National Center of Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Ma
- Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China.,Liaoning University of Traditional Chinese Medicine, Shenyang, China
| | - Q Zhang
- Central Laboratory, Peking University School of Stomatology, Beijing, China
| | - N Chen
- Department of Gastroenterology, Peking University People's Hospital, Beijing, China
| | - M Chu
- Immunology, School of Basic Medical Sciences, Peking University, NHC Key Laboratory of Medical Immunology (Peking University), Beijing, China
| | - F Chen
- Central Laboratory, Peking University School of Stomatology, Beijing, China
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Gomez-Bris R, Saez A, Herrero-Fernandez B, Rius C, Sanchez-Martinez H, Gonzalez-Granado JM. CD4 T-Cell Subsets and the Pathophysiology of Inflammatory Bowel Disease. Int J Mol Sci 2023; 24:ijms24032696. [PMID: 36769019 PMCID: PMC9916759 DOI: 10.3390/ijms24032696] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/24/2023] [Accepted: 01/28/2023] [Indexed: 02/04/2023] Open
Abstract
Inflammatory bowel disease (IBD) is an umbrella term for the chronic immune-mediated idiopathic inflammation of the gastrointestinal tract, manifesting as Crohn's disease (CD) or ulcerative colitis (UC). IBD is characterized by exacerbated innate and adaptive immunity in the gut in association with microbiota dysbiosis and the disruption of the intestinal barrier, resulting in increased bacterial exposure. In response to signals from microorganisms and damaged tissue, innate immune cells produce inflammatory cytokines and factors that stimulate T and B cells of the adaptive immune system, and a prominent characteristic of IBD patients is the accumulation of inflammatory T-cells and their proinflammatory-associated cytokines in intestinal tissue. Upon antigen recognition and activation, CD4 T-cells differentiate towards a range of distinct phenotypes: T helper(h)1, Th2, Th9, Th17, Th22, T follicular helper (Tfh), and several types of T-regulatory cells (Treg). T-cells are generated according to and adapt to microenvironmental conditions and participate in a complex network of interactions among other immune cells that modulate the further progression of IBD. This review examines the role of the CD4 T-cells most relevant to IBD, highlighting how these cells adapt to the environment and interact with other cell populations to promote or inhibit the development of IBD.
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Affiliation(s)
- Raquel Gomez-Bris
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Angela Saez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Facultad de Ciencias Experimentales, Universidad Francisco de Vitoria (UFV), 28223 Pozuelo de Alarcón, Spain
| | - Beatriz Herrero-Fernandez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- Departamento de Fisiología, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), 28029 Madrid, Spain
| | - Cristina Rius
- Department of History of Science and Information Science, School of Medicine and Dentistry, University of Valencia, 46010 Valencia, Spain
- UISYS Research Unit, University of Valencia, 46010 Valencia, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - Hector Sanchez-Martinez
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
| | - Jose M. Gonzalez-Granado
- LamImSys Lab, Instituto de Investigación Sanitaria Hospital 12 de Octubre (imas12), 28041 Madrid, Spain
- CIBER de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, 28040 Madrid, Spain
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-913908766
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Transcriptomic Analysis in Marine Medaka Gill Reveals That the Hypo-Osmotic Stress Could Alter the Immune Response via the IL17 Signaling Pathway. Int J Mol Sci 2022; 23:ijms232012417. [PMID: 36293271 PMCID: PMC9604416 DOI: 10.3390/ijms232012417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 10/03/2022] [Accepted: 10/12/2022] [Indexed: 11/17/2022] Open
Abstract
Fish gills are the major osmoregulatory tissue that contact the external water environment and have developed an effective osmoregulatory mechanism to maintain cellular function. Marine medaka (Oryzias melastigma) has the ability to live in both seawater and fresh water environments. The present study performed a seawater (SW) to 50% seawater (SFW) transfer, and the gill samples were used for comparative transcriptomic analysis to study the alteration of hypo-osmotic stress on immune responsive genes in this model organism. The result identified 518 differentiated expressed genes (DEGs) after the SW to SFW transfer. Various pathways such as p53 signaling, forkhead box O signaling, and the cell cycle were enriched. Moreover, the immune system was highlighted as one of the top altered biological processes in the enrichment analysis. Various cytokines, chemokines, and inflammatory genes that participate in the IL-17 signaling pathway were suppressed after the SW to SFW transfer. On the other hand, some immunoglobulin-related genes were up-regulated. The results were further validated by real-time qPCR. Taken together, our study provides additional gill transcriptome information in marine medaka; it also supports the notion that osmotic stress could influence the immune responses in fish gills.
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