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Gao H, Peng K, Shi Y, Zhu S, Sun R, Xu C, Liu P, Pang Z, Zhu L, Chen W, Feng B, Wu H, Zhou G, Li M, Li J, Ding B, Liu Z. Development and validation of a novel criterion of histologic healing in ulcerative colitis defined by inflammatory cell enumeration in lamina propria mucosa: A multicenter retrospective cohort in China. Chin Med J (Engl) 2024; 137:1316-1323. [PMID: 38738696 PMCID: PMC11191007 DOI: 10.1097/cm9.0000000000003154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Indexed: 05/14/2024] Open
Abstract
BACKGROUND Histological healing is closely associated with improved long-term clinical outcomes and lowered relapses in patients with ulcerative colitis (UC). Here, we developed a novel diagnostic criterion for assessing histological healing in UC patients. METHODS We conducted a retrospective cohort study in UC patients, whose treatment was iteratively optimized to achieve mucosal healing at Shanghai Tenth People's Hospital of Tongji University from January 2017 to May 2022. We identified an inflammatory cell enumeration index (ICEI) for assessing histological healing based on the proportions of eosinophils, CD177 + neutrophils, and CD40L + T cells in the colonic lamina propria under high power field (HPF), and the outcomes (risks of symptomatic relapses) of achieving histological remission vs . persistent histological inflammation using Kaplan-Meier curves. Intrareader reliability and inter-reader reliability were evaluated by each reader. The relationships to the changes in the Nancy index and the Geboes score were also assessed for responsiveness. The ICEI was further validated in a new cohort of UC patients from other nine university hospitals. RESULTS We developed an ICEI for clinical diagnosis of histological healing, i.e., Y = 1.701X 1 + 0.758X 2 + 1.347X 3 - 7.745 (X 1 , X 2 , and X 3 represent the proportions of CD177 + neutrophils, eosinophils, and CD40L + T cells, respectively, in the colonic lamina propria under HPF). The receiver operating characteristics curve (ROC) analysis revealed that Y <-0.391 was the cutoff value for the diagnosis of histological healing and that an area under the curve (AUC) was 0.942 (95% confidence interval [CI]: 0.905-0.979) with a sensitivity of 92.5% and a specificity of 83.6% ( P <0.001). The intraclass correlation coefficient (ICC) for the intrareader reliability was 0.855 (95% CI: 0.781-0.909), and ICEI had good inter-reader reliability of 0.832 (95% CI: 0.748-0.894). During an 18-month follow-up, patients with histological healing had a substantially better outcome compared with those with unachieved histological healing ( P <0.001) using ICEI. During a 12-month follow-up from other nine hospitals, patients with histological healing also had a lower risk of relapse than patients with unachieved histological healing. CONCLUSIONS ICEI can be used to predict histological healing and identify patients with a risk of relapse 12 months and 18 months after clinical therapy. Therefore, ICEI provides a promising, simplified approach to monitor histological healing and to predict the prognosis of UC. REGISTRATION Chinese Clinical Trial Registry, No. ChiCTR2300077792.
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Affiliation(s)
- Han Gao
- Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
| | - Kangsheng Peng
- Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
| | - Yadi Shi
- Clinical Medicine, Sanquan College of Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Shenshen Zhu
- Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
| | - Ruicong Sun
- Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
| | - Chunjin Xu
- Department of Gastroenterology, The First People’s Hospital of Shangqiu City Affiliated to Xinxiang Medical University, Shangqiu, Henan 476100, China
| | - Ping Liu
- Department of Gastroenterology, Wuhu First People’s Hospital, Wuhu, Anhui 241000, China
| | - Zhi Pang
- Department of Gastroenterology, Suzhou Municipal Hospital Affiliated to Nanjing Medical University, Suzhou, Jiangsu 215008, China
| | - Lanxiang Zhu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 251006, China
| | - Weichang Chen
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 251006, China
| | - Baisui Feng
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450014, China
| | - Huili Wu
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, Henan 450000, China
| | - Guangxi Zhou
- Department of Gastroenterology, The Affiliated Hospital of Jining Medical College, Jining, Shandong 272004, China
| | - Mingsong Li
- Department of Gastroenterology, The Third Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510140, China
| | - Junxiang Li
- Department of Gastroenterology, Dongfang Hospital of Beijing University of Chinese Medicine, Beijing 100078, China
| | - Baijing Ding
- Department of Gastroenterology, Wuhu First People’s Hospital, Wuhu, Anhui 241000, China
| | - Zhanju Liu
- Center for IBD Research and Department of Gastroenterology, Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai 200085, China
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da Costa ALA, Soares MA, Lourenço TGB, Guimarães-Pinto K, Filardy AD, de Oliveira AM, de Luca BG, Magliano DAC, Araujo OMO, Moura L, Lopes RT, Palhares de Miranda AL, Tributino JLM, Vieira Colombo AP. Periodontal pathogen Aggregatibacter actinomycetemcomitans JP2 correlates with colonic leukocytes decrease and gut microbiome imbalance in mice. J Periodontal Res 2024. [PMID: 38757372 DOI: 10.1111/jre.13288] [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: 01/18/2024] [Revised: 04/30/2024] [Accepted: 05/02/2024] [Indexed: 05/18/2024]
Abstract
AIM Evidence suggests that translocation of oral pathogens through the oral-gut axis may induce intestinal dysbiosis. This study aimed to evaluate the impact of a highly leukotoxic Aggregatibacter actinomycetemcomitans (Aa) strain on the gut microbiota, intestinal mucosal integrity and immune system in healthy mice. METHODS Eight-week-old male C57BL6 mice were divided into control (n = 16) and JP2 groups (n = 19), which received intragastric gavage with PBS and with a suspension of Aa JP2 (HK921), respectively, twice a week for 4 weeks. Colonic lamina propria, fecal material, serum, gingival tissues, and mandibles were obtained for analyses of leukocyte populations, inflammatory mediators, mucosal integrity, alveolar bone loss, and gut microbiota. Differences between groups for these parameters were examined by non-parametric tests. RESULTS The gut microbial richness and the number of colonic macrophages, neutrophils, and monocytes were significantly lower in Aa JP2-infected mice than in controls (p < .05). In contrast, infected animals showed higher abundance of Clostridiaceae, Lactobacillus taiwanensis, Helicobacter rodentium, higher levels of IL-6 expression in colonic tissues, and higher splenic MPO activity than controls (p < .05). No differences in tight junction expression, serum endotoxin levels, and colonic inflammatory cytokines were observed between groups. Infected animals presented also slightly more alveolar bone loss and gingival IL-6 levels than controls (p < .05). CONCLUSION Based on this model, intragastric administration of Aa JP2 is associated with changes in the gut ecosystem of healthy hosts, characterized by less live/recruited myeloid cells, enrichment of the gut microbiota with pathobionts and decrease in commensals. Negligible levels of colonic pro-inflammatory cytokines, and no signs of mucosal barrier disruption were related to these changes.
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Affiliation(s)
- André L A da Costa
- Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Cellular Immunology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Mariana A Soares
- Department of Pharmaceutical Biotechnology, Laboratory of Studies in Experimental Pharmacology, Faculty of Pharmacy, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Talita G B Lourenço
- Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Kamila Guimarães-Pinto
- Cellular Immunology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alessandra D Filardy
- Cellular Immunology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Adriana Miranda de Oliveira
- Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | - Olga M O Araujo
- Laboratory of Nuclear Instrumentation, Nuclear Engineering Program, Institute Alberto Luiz de Coimbra of Graduate and Research in Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Larissa Moura
- Laboratory of Nuclear Instrumentation, Nuclear Engineering Program, Institute Alberto Luiz de Coimbra of Graduate and Research in Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ricardo Tadeu Lopes
- Laboratory of Nuclear Instrumentation, Nuclear Engineering Program, Institute Alberto Luiz de Coimbra of Graduate and Research in Engineering, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Luisa Palhares de Miranda
- Cellular Immunology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Jorge L M Tributino
- Molecular Pharmacology Laboratory, Institute of Biomedical Sciences, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Ana Paula Vieira Colombo
- Oral Microbiology Laboratory, Institute of Microbiology Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
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3
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Sun S, Mao Y, Le S, Zheng M, Li M, Chen Y, Chen J, Fan Y, Lv B. Biological characteristics of molecular subtypes of ulcerative colitis characterized by ferroptosis and neutrophil infiltration. Sci Rep 2024; 14:9510. [PMID: 38664443 PMCID: PMC11045816 DOI: 10.1038/s41598-024-60137-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Clinical ulcerative colitis (UC) is a heterogeneous condition. Moreover, medical interventions are nonspecific, and thus, treatment responses are inconsistent. The aim of this study was to explore the molecular subtypes and biological characteristics of UC based on ferroptosis and neutrophil gene sets. Multiple intestinal mucosa gene expression profiles of UC patients in the Gene Expression Omnibus (GEO) database were downloaded. Unsupervised clustering methods were used to identify potential molecular subtypes based on ferroptosis and neutrophil gene sets. Multiple immune infiltration algorithms were used to evaluate the biological characteristics of the molecular subtypes. Machine learning identifies hub genes for molecular subtypes and analyses their diagnostic efficacy for UC and predictive performance for drug therapy. The relevant conclusions were verified by clinical samples and animal experiments. Four molecular subtypes were identified according to the ferroptosis and neutrophil gene sets: neutrophil, ferroptosis, mixed and quiescent. The subtypes have different biological characteristics and immune infiltration levels. Multiple machine learning methods jointly identified four hub genes (FTH1, AQP9, STEAP3 and STEAP4). Receiver operating characteristic (ROC) curve analysis revealed that the four hub genes could be used as diagnostic markers for UC. The clinical response profile data of infliximab treatment patients showed that AQP9 and STEPA4 were reliable predictors of infliximab treatment response. In human samples the AQP9 and STEAP4 protein were shown to be increased in UC intestinal samples. In animal experiments, the ferroptosis and neutrophil phenotype were confirmed. Dual analysis of ferroptosis and neutrophil gene expression revealed four subgroups of UC patients. The molecular subtype-associated hub genes can be used as diagnostic markers for UC and predict infliximab treatment response.
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Affiliation(s)
- Shaopeng Sun
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Yuqing Mao
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Sihua Le
- The First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, China
| | - Mingxu Zheng
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Menglin Li
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Yifei Chen
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Jiajia Chen
- Department of Nursing, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, China
| | - Yihong Fan
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China
| | - Bin Lv
- Department of Gastroenterology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), No. 54, Youdian Road, Shangcheng District, Hangzhou, 310003, Zhejiang, China.
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Danne C, Skerniskyte J, Marteyn B, Sokol H. Neutrophils: from IBD to the gut microbiota. Nat Rev Gastroenterol Hepatol 2024; 21:184-197. [PMID: 38110547 DOI: 10.1038/s41575-023-00871-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/10/2023] [Indexed: 12/20/2023]
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract that results from dysfunction in innate and/or adaptive immune responses. Impaired innate immunity, which leads to lack of control of an altered intestinal microbiota and to activation of the adaptive immune system, promotes a secondary inflammatory response that is responsible for tissue damage. Neutrophils are key players in innate immunity in IBD, but their roles have been neglected compared with those of other immune cells. The latest studies on neutrophils in IBD have revealed unexpected complexities, with heterogeneous populations and dual functions, both deleterious and protective, for the host. In parallel, interconnections between disease development, intestinal microbiota and neutrophils have been highlighted. Numerous IBD susceptibility genes (such as NOD2, NCF4, LRRK2, CARD9) are involved in neutrophil functions related to defence against microorganisms. Moreover, severe monogenic diseases involving dysfunctional neutrophils, including chronic granulomatous disease, are characterized by intestinal inflammation that mimics IBD and by alterations in the intestinal microbiota. This observation demonstrates the dialogue between neutrophils, gut inflammation and the microbiota. Neutrophils affect microbiota composition and function in several ways. In return, microbial factors, including metabolites, regulate neutrophil production and function directly and indirectly. It is crucial to further investigate the diverse roles played by neutrophils in host-microbiota interactions, both at steady state and in inflammatory conditions, to develop new IBD therapies. In this Review, we discuss the roles of neutrophils in IBD, in light of emerging evidence proving strong interconnections between neutrophils and the gut microbiota, especially in an inflammatory context.
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Affiliation(s)
- Camille Danne
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, Paris, France.
- Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France.
| | - Jurate Skerniskyte
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
- Institute of Biosciences, Life Sciences Center, Vilnius University, Vilnius, Lithuania
| | - Benoit Marteyn
- CNRS, UPR 9002, Université de Strasbourg, Institut de Biologie Moléculaire et Cellulaire, Architecture et Réactivité de l'ARN, Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), Strasbourg, France
- Institut Pasteur, Université de Paris, Inserm 1225 Unité de Pathogenèse des Infections Vasculaires, Paris, France
| | - Harry Sokol
- Sorbonne Université, INSERM UMRS-938, Centre de Recherche Saint-Antoine, CRSA, AP-HP, Hôpital Saint-Antoine, Service de Gastroentérologie, Paris, France
- Paris Center For Microbiome Medicine (PaCeMM) FHU, Paris, France
- Université Paris-Saclay, INRAe, AgroParisTech, Micalis Institute, Jouy-en-Josas, France
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5
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Abstract
The remarkable diversity of lymphocytes, essential components of the immune system, serves as an ingenious mechanism for maximizing the efficient utilization of limited host defense resources. While cell adhesion molecules, notably in gut-tropic T cells, play a central role in this mechanism, the counterbalancing molecular details have remained elusive. Conversely, we've uncovered the molecular pathways enabling extracellular vesicles secreted by lymphocytes to reach the gut's mucosal tissues, facilitating immunological regulation. This discovery sheds light on immune fine-tuning, offering insights into immune regulation mechanisms.
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Affiliation(s)
- Yasunari Matsuzaka
- Division of Molecular and Medical Genetics, Center for Gene and Cell Therapy, The Institute of Medical Science, The University of Tokyo, Minato-ku, Tokyo, Japan
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
| | - Ryu Yashiro
- Administrative Section of Radiation Protection, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Japan
- Department of Mycobacteriology, Leprosy Research Center, National Institute of Infectious Diseases, Higashimurayama, Tokyo, Japan
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6
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Zhu F, Jing D, Zhou H, Hu Z, Wang Y, Jin G, Yang Y, Zhou G. Blockade of Syk modulates neutrophil immune-responses via the mTOR/RUBCNL-dependent autophagy pathway to alleviate intestinal inflammation in ulcerative colitis. PRECISION CLINICAL MEDICINE 2023; 6:pbad025. [PMID: 37941642 PMCID: PMC10628969 DOI: 10.1093/pcmedi/pbad025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Accepted: 09/26/2023] [Indexed: 11/10/2023] Open
Abstract
Background Ulcerative colitis (UC) is a progressive chronic inflammatory disorder. Neutrophils play a critical role in regulating intestinal mucosal homeostasis in UC. Spleen tyrosine kinase (Syk) is involved in several inflammatory diseases. Here, we evaluated the effects and underlying mechanisms of Syk on neutrophil immune-responses in UC. Methods Syk expression in the colonic tissues of patients with UC was determined using quantitative reverse transcription-polymerase chain reaction (qRT-PCR), western blotting, and immunohistochemistry. Colonic biopsies from patients with UC were obtained for single-cell RNA-sequencing. Neutrophils isolated from peripheral blood were pre-treated with R788 (a Syk inhibitor) and gene differences were determined using RNA sequencing. Neutrophil functions were analyzed using qRT-PCR, flow cytometry, and Transwell assay. R788 was administered daily to mice with dextran sulfate sodium (DSS)-induced colitis to verify the effects of Syk on intestinal inflammation. Results Syk expression was increased in inflamed mucosa and neutrophils of patients with UC and positively correlated with disease activity. Pharmacological inhibition of Syk in neutrophils decreased the production of pro-inflammatory cytokines, chemokines, neutrophil extracellular traps, reactive oxygen species, and myeloperoxidase. Apoptosis and migration of neutrophils were suppressed by Syk blockade. Syk blockade ameliorated mucosal inflammation in DSS-induced murine colitis by inhibiting neutrophil-associated immune responses. Mechanistically, Syk regulated neutrophil immune-responses via the mammalian target of rapamycin kinase/rubicon-like autophagy enhancer-dependent autophagy pathway. Conclusions Our findings indicate that Syk facilitates specific neutrophil functional responses to mucosal inflammation in UC, and its inhibition ameliorates mucosal inflammation in DSS-induced murine colitis, suggesting its potential as a novel therapeutic target for UC treatment.
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Affiliation(s)
- Fengqin Zhu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Dehuai Jing
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Huihui Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Zongjing Hu
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Yan Wang
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Guiyuan Jin
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Yonghong Yang
- Medical Research Center, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
| | - Guangxi Zhou
- Department of Gastroenterology, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining 272000, China
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Zhang M, Mo R, Wang H, Liu T, Zhang G, Wu Y. Grape seed proanthocyanidin improves intestinal inflammation in canine through regulating gut microbiota and bile acid compositions. FASEB J 2023; 37:e23285. [PMID: 37933950 DOI: 10.1096/fj.202300819rr] [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: 04/24/2023] [Revised: 10/04/2023] [Accepted: 10/18/2023] [Indexed: 11/08/2023]
Abstract
Although certain progress has been made in treating canine inflammatory bowel disease (IBD), a large proportion of dogs have a poor prognosis and may develop resistance and side effects. Therefore, it is of great significance to prevent or alleviate canine IBD through nutritional intervention. Plant polyphenol can interact with intestinal bacteria and has important prospects in the intestinal health improvement. This study evaluated the effect of grape seed proanthocyanidin (GSP), a plant-derived natural polyphenol, on Labrador Retrievers with mild IBD. In Experiment 1 of this study, GSP alleviated persistent intestinal inflammation in canines by improving inflammatory indexes and reducing intestinal permeability. Moreover, GSP treatment increased the abundance of bacteria with potential anti-inflammatory properties and engaging bile acid metabolism, including Ruminococcaceae, Faecalibacterium, Ruminococcus_torques_group, and Lachnospiraceae_NK4A136_group. Notably, targeted metabolomic analysis identified elevated productions of fecal chenodeoxycholic acid and its microbial transformation product lithocholic acid, which might contribute to relieving canine intestinal inflammation. Further, in Experiment 2, fecal microbiota transplantation was used to determine whether gut microbiota is a potential mechanism for GSP efficacy. Dogs with mild IBD received the fecal microbiota from the group administered GSP and mirrored the improvement effects of GSP, which results verified that gut microbial alteration could be an underlying mechanism for GSP efficiency on canine IBD. Our findings highlight that the mechanism of the GSP function on canine IBD is mediated by altering gut microbial composition and improving bile acid metabolism. This study proposes a natural polyphenol-based dietary strategy for improving canine intestinal health.
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Affiliation(s)
- Mingrui Zhang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Ruixia Mo
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Haotian Wang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Tianyi Liu
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Gang Zhang
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
| | - Yi Wu
- State Key Laboratory of Animal Nutrition and Feeding, College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
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Zeng Z, Jiang M, Li X, Yuan J, Zhang H. Precision medicine in inflammatory bowel disease. PRECISION CLINICAL MEDICINE 2023; 6:pbad033. [PMID: 38638127 PMCID: PMC11025389 DOI: 10.1093/pcmedi/pbad033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/13/2023] [Indexed: 04/20/2024] Open
Abstract
Inflammatory bowel disease (IBD) is an incurable disease characterized by remission-relapse cycles throughout its course. Both Crohn's disease (CD) and ulcerative colitis (UC), the two main forms of IBD, exhibit tendency to develop complications and substantial heterogeneity in terms of frequency and severity of relapse, thus posing great challenges to the clinical management for IBD. Current treatment strategies are effective in different ways in induction and maintenance therapies for IBD. Recent advances in studies of genetics, pharmacogenetics, proteomics and microbiome provide a strong driving force for identifying molecular markers of prognosis and treatment response, which should help clinicians manage IBD patients more effectively, and then, improve clinical outcomes and reduce treatment costs of patients. In this review, we summarize and discuss precision medicine in IBD, focusing on predictive markers of disease course and treatment response, and monitoring indices during therapeutic drug monitoring.
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Affiliation(s)
- Zhen Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mingshan Jiang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xi Li
- Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
- General Practice Ward/International Medical Center Ward, General Practice Medical Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jing Yuan
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Lab of Inflammatory Bowel Disease, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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9
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Jiang F, Wu M, Li R. The significance of long non-coding RNAs in the pathogenesis, diagnosis and treatment of inflammatory bowel disease. PRECISION CLINICAL MEDICINE 2023; 6:pbad031. [PMID: 38163004 PMCID: PMC10757071 DOI: 10.1093/pcmedi/pbad031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/06/2023] [Indexed: 01/03/2024] Open
Abstract
Inflammatory bowel diseases (IBD) are a group of chronic relapsing gastrointestinal inflammatory diseases with significant global incidence. Although the pathomechanism of IBD has been extensively investigated, several aspects of its pathogenesis remain unclear. Long non-coding RNAs (lncRNAs) are transcripts with more than 200 nucleotides in length that have potential protein-coding functions. LncRNAs play important roles in biological processes such as epigenetic modification, transcriptional regulation and post-transcriptional regulation. In this review, we summarize recent advances in research on IBD-related lncRNAs from the perspective of the overall intestinal microenvironment, as well as their potential roles as immune regulators, diagnostic biomarkers and therapeutic targets or agents for IBD.
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Affiliation(s)
- Fei Jiang
- Jiangsu Province Engineering Research Center of Cardiovascular Drugs Targeting Endothelial Cells, School of Life Sciences, Jiangsu Normal University, Xuzhou 221000, China
- Department of Laboratory Medicine, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Min Wu
- Drug Discovery Section, Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325000, China
- Department of Neurology, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - Rongpeng Li
- Jiangsu Province Engineering Research Center of Cardiovascular Drugs Targeting Endothelial Cells, School of Life Sciences, Jiangsu Normal University, Xuzhou 221000, China
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Riaz B, Sohn S. Neutrophils in Inflammatory Diseases: Unraveling the Impact of Their Derived Molecules and Heterogeneity. Cells 2023; 12:2621. [PMID: 37998356 PMCID: PMC10670008 DOI: 10.3390/cells12222621] [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: 10/27/2023] [Revised: 11/08/2023] [Accepted: 11/10/2023] [Indexed: 11/25/2023] Open
Abstract
Inflammatory diseases involve numerous disorders and medical conditions defined by an insufficient level of self-tolerance. These diseases evolve over the course of a multi-step process through which environmental variables play a crucial role in the emergence of aberrant innate and adaptive immunological responses. According to experimental data accumulated over the past decade, neutrophils play a significant role as effector cells in innate immunity. However, neutrophils are also involved in the progression of numerous diseases through participation in the onset and maintenance of immune-mediated dysregulation by releasing neutrophil-derived molecules and forming neutrophil extracellular traps, ultimately causing destruction of tissues. Additionally, neutrophils have a wide variety of functional heterogeneity with adverse effects on inflammatory diseases. However, the complicated role of neutrophil biology and its heterogeneity in inflammatory diseases remains unclear. Moreover, neutrophils are considered an intriguing target of interventional therapies due to their multifaceted role in a number of diseases. Several approaches have been developed to therapeutically target neutrophils, involving strategies to improve neutrophil function, with various compounds and inhibitors currently undergoing clinical trials, although challenges and contradictions in the field persist. This review outlines the current literature on roles of neutrophils, neutrophil-derived molecules, and neutrophil heterogeneity in the pathogenesis of autoimmune and inflammatory diseases with potential future therapeutic strategies.
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Affiliation(s)
- Bushra Riaz
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea;
| | - Seonghyang Sohn
- Department of Biomedical Science, Ajou University School of Medicine, Suwon 16499, Republic of Korea;
- Department of Microbiology, Ajou University School of Medicine, Suwon 16499, Republic of Korea
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11
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Ghimire J, Iftikhar R, Penrose HM, Snarski P, Ruiz E, Savkovic SD. FOXO3 Deficiency in Neutrophils Drives Colonic Inflammation and Tumorigenesis. Int J Mol Sci 2023; 24:ijms24119730. [PMID: 37298680 DOI: 10.3390/ijms24119730] [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: 04/17/2023] [Revised: 05/19/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Inflammatory bowel disease (IBD), characterized by infiltration of polymorphonuclear neutrophils (PMNs), increases the risk of colon cancer. PMN activation corresponds to the accumulation of intracellular Lipid Droplets (LDs). As increased LDs are negatively regulated by transcription factor Forkhead Box O3 (FOXO3), we aim to determine the significance of this regulatory network in PMN-mediated IBD and tumorigenesis. Affected tissue of IBD and colon cancer patients, colonic and infiltrated immune cells, have increased LDs' coat protein, PLIN2. Mouse peritoneal PMNs with stimulated LDs and FOXO3 deficiency have elevated transmigratory activity. Transcriptomic analysis of these FOXO3-deficient PMNs showed differentially expressed genes (DEGs; FDR < 0.05) involved in metabolism, inflammation, and tumorigenesis. Upstream regulators of these DEGs, similar to colonic inflammation and dysplasia in mice, were linked to IBD and human colon cancer. Additionally, a transcriptional signature representing FOXO3-deficient PMNs (PMN-FOXO3389) separated transcriptomes of affected tissue in IBD (p = 0.00018) and colon cancer (p = 0.0037) from control. Increased PMN-FOXO3389 presence predicted colon cancer invasion (lymphovascular p = 0.015; vascular p = 0.046; perineural p = 0.03) and poor survival. Validated DEGs from PMN-FOXO3389 (P2RX1, MGLL, MCAM, CDKN1A, RALBP1, CCPG1, PLA2G7) are involved in metabolism, inflammation, and tumorigenesis (p < 0.05). These findings highlight the significance of LDs and FOXO3-mediated PMN functions that promote colonic pathobiology.
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Affiliation(s)
- Jenisha Ghimire
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Rida Iftikhar
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Harrison M Penrose
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Patricia Snarski
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Emmanuelle Ruiz
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Suzana D Savkovic
- Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, New Orleans, LA 70112, USA
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12
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Dang Y, Ma C, Chen K, Chen Y, Jiang M, Hu K, Li L, Zeng Z, Zhang H. The Effects of a High-Fat Diet on Inflammatory Bowel Disease. Biomolecules 2023; 13:905. [PMID: 37371485 DOI: 10.3390/biom13060905] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
The interactions among diet, intestinal immunity, and microbiota are complex and play contradictory roles in inflammatory bowel disease (IBD). An increasing number of studies has shed light on this field. The intestinal immune balance is disrupted by a high-fat diet (HFD) in several ways, such as impairing the intestinal barrier, influencing immune cells, and altering the gut microbiota. In contrast, a rational diet is thought to maintain intestinal immunity by regulating gut microbiota. In this review, we emphasize the crucial contributions made by an HFD to the gut immune system and microbiota.
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Affiliation(s)
- Yuan Dang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chunxiang Ma
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kexin Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yiding Chen
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Mingshan Jiang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kehan Hu
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lili Li
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen Zeng
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Hu Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu 610041, China
- Centre for Inflammatory Bowel Disease, West China Hospital, Sichuan University, Chengdu 610041, China
- Laboratory of Inflammatory Bowel Disease, Institute of Immunology and Inflammation, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, China
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13
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Zhou L, Yan Z, Yang W, Buckley JA, Al Diffalha S, Benveniste EN, Qin H. Socs3 expression in myeloid cells modulates the pathogenesis of dextran sulfate sodium (DSS)-induced colitis. Front Immunol 2023; 14:1163987. [PMID: 37283760 PMCID: PMC10239850 DOI: 10.3389/fimmu.2023.1163987] [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: 02/11/2023] [Accepted: 05/05/2023] [Indexed: 06/08/2023] Open
Abstract
Introduction Myeloid cells play a critical role in the pathogenesis of Inflammatory Bowel Diseases (IBDs), including Ulcerative Colitis (UC) and Crohn's Disease (CD). Dysregulation of the JAK/STAT pathway is associated with many pathological conditions, including IBD. Suppressors Of Cytokine Signaling (SOCS) are a family of proteins that negatively regulate the JAK/STAT pathway. Our previous studies identified that mice lacking Socs3 in myeloid cells developed a hyper-activated phenotype of macrophages and neutrophils in a pre-clinical model of Multiple Sclerosis. Methods To better understand the function of myeloid cell Socs3 in the pathogenesis of colitis, mice with Socs3 deletion in myeloid cells (Socs3 ΔLysM) were utilized in a DSS-induced colitis model. Results Our results indicate that Socs3 deficiency in myeloid cells leads to more severe colitis induced by DSS, which correlates with increased infiltration of monocytes and neutrophils in the colon and increased numbers of monocytes and neutrophils in the spleen. Furthermore, our results demonstrate that the expression of genes related to the pathogenesis and diagnosis of colitis such as Il1β, Lcn2, S100a8 and S100a9 were specifically enhanced in Socs3-deficient neutrophils localized to the colon and spleen. Conversely, there were no observable differences in gene expression in Ly6C+ monocytes. Depletion of neutrophils using a neutralizing antibody to Ly6G significantly improved the disease severity of DSS-induced colitis in Socs3-deficient mice. Discussion Thus, our results suggest that deficiency of Socs3 in myeloid cells exacerbates DSS-induced colitis and that Socs3 prevents overt activation of the immune system in IBD. This study may provide novel therapeutic strategies to IBD patients with hyperactivated neutrophils.
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Affiliation(s)
- Lianna Zhou
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Zhaoqi Yan
- Gladstone Institute of Neurological Disease, San Francisco, CA, United States
| | - Wei Yang
- Division of Gastroenterology and Hepatology, Weill Cornell College of Medicine, New York, NY, United States
| | - Jessica A. Buckley
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sameer Al Diffalha
- Department of Pathology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Etty N. Benveniste
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Hongwei Qin
- Department of Cell, Developmental and Integrative Biology, University of Alabama at Birmingham, Birmingham, AL, United States
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14
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Carnevale S, Di Ceglie I, Grieco G, Rigatelli A, Bonavita E, Jaillon S. Neutrophil diversity in inflammation and cancer. Front Immunol 2023; 14:1180810. [PMID: 37180120 PMCID: PMC10169606 DOI: 10.3389/fimmu.2023.1180810] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Accepted: 04/11/2023] [Indexed: 05/15/2023] Open
Abstract
Neutrophils are the most abundant circulating leukocytes in humans and the first immune cells recruited at the site of inflammation. Classically perceived as short-lived effector cells with limited plasticity and diversity, neutrophils are now recognized as highly heterogenous immune cells, which can adapt to various environmental cues. In addition to playing a central role in the host defence, neutrophils are involved in pathological contexts such as inflammatory diseases and cancer. The prevalence of neutrophils in these conditions is usually associated with detrimental inflammatory responses and poor clinical outcomes. However, a beneficial role for neutrophils is emerging in several pathological contexts, including in cancer. Here we will review the current knowledge of neutrophil biology and heterogeneity in steady state and during inflammation, with a focus on the opposing roles of neutrophils in different pathological contexts.
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Affiliation(s)
| | | | - Giovanna Grieco
- IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
| | | | | | - Sebastien Jaillon
- IRCCS Humanitas Research Hospital, Milan, Italy
- Department of Biomedical Sciences, Humanitas University, Milan, Italy
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15
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Li Z, Dong S, Huang S, Sun Y, Sun Y, Zhao B, Qi Q, Xiong L, Hong F, Jiang Y. Role of CD34 in inflammatory bowel disease. Front Physiol 2023; 14:1144980. [PMID: 37051017 PMCID: PMC10083274 DOI: 10.3389/fphys.2023.1144980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
Inflammatory bowel disease (IBD) is caused by a variety of pathogenic factors, including chronic recurrent inflammation of the ileum, rectum, and colon. Immune cells and adhesion molecules play an important role in the course of the disease, which is actually an autoimmune disease. During IBD, CD34 is involved in mediating the migration of a variety of immune cells (neutrophils, eosinophils, and mast cells) to the inflammatory site, and its interaction with various adhesion molecules is involved in the occurrence and development of IBD. Although the function of CD34 as a partial cell marker is well known, little is known on its role in IBD. Therefore, this article describes the structure and biological function of CD34, as well as on its potential mechanism in the development of IBD.
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Affiliation(s)
- Zhiyuan Li
- Jiaxing Key Laboratory of Virus-Related Infectious Diseases, The Affiliated Hospital of Jiaxing University, Jiaxing University College of Medicine, Jiaxing, Zhejiang, China
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, China
| | - Shuyan Dong
- Jiaxing Key Laboratory of Virus-Related Infectious Diseases, The Affiliated Hospital of Jiaxing University, Jiaxing University College of Medicine, Jiaxing, Zhejiang, China
| | - Shichen Huang
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, China
| | - Yuhan Sun
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, China
| | - Yingzhi Sun
- Jiaxing Key Laboratory of Virus-Related Infectious Diseases, The Affiliated Hospital of Jiaxing University, Jiaxing University College of Medicine, Jiaxing, Zhejiang, China
| | - Beibei Zhao
- School of Pharmacy, Wannan Medical College, Wuhu, Anhui, China
| | - Qiulan Qi
- Jiaxing Key Laboratory of Virus-Related Infectious Diseases, The Affiliated Hospital of Jiaxing University, Jiaxing University College of Medicine, Jiaxing, Zhejiang, China
| | - Lei Xiong
- Department of Biochemistry and Molecular Biology, Wannan Medical College, Wuhu, Anhui, China
- *Correspondence: Yuxin Jiang, ; Feng Hong, ; Lei Xiong,
| | - Feng Hong
- The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, Guangdong, China
- *Correspondence: Yuxin Jiang, ; Feng Hong, ; Lei Xiong,
| | - Yuxin Jiang
- Jiaxing Key Laboratory of Virus-Related Infectious Diseases, The Affiliated Hospital of Jiaxing University, Jiaxing University College of Medicine, Jiaxing, Zhejiang, China
- *Correspondence: Yuxin Jiang, ; Feng Hong, ; Lei Xiong,
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16
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Soufli I, Hablal A, Bessaad S, Amri M, Labsi M, Boussa RS, Ameur F, Belguendouz H, Younes SA, Idris NS, Touil-Boukoffa C. Nitric Oxide, Neutrophil/Lymphocyte, and Platelet/Lymphocyte Ratios as Promising Inflammatory Biomarkers in Complicated Crohn's Disease: Outcomes of Corticosteroids and Anti-TNF-α Therapies. Inflammation 2023; 46:1091-1105. [PMID: 36869975 DOI: 10.1007/s10753-023-01796-4] [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: 12/28/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 03/05/2023]
Abstract
Crohn's disease (CD) is a relapsing-remitting inflammatory bowel disease with a progressive course. The aim of our study was to evaluate the relationship between nitric oxide (NO), pro-inflammatory cytokines, and blood count-based ratios in patients with complicated Crohn's disease as well as the outcome of corticosteroid or anti-TNF-α therapy. In this context, we evaluated the NLR as the ratio of neutrophils count to lymphocytes count, PLR as the ratio of platelets count to lymphocytes count, and MLR as the ratio of monocytes count to lymphocytes count in patients and controls. Furthermore, we assessed NO production by the Griess method in plasma along with iNOS and NF-κB expression by immunofluorescence method in intestinal tissues of patients and controls. In the same way, we evaluated plasma TNF-α, IL-17A, and IL-10 levels using ELISA. Our results indicate that blood count-based ratios NLR, PLR, and MLR were significantly higher in patients compared to controls. In addition, increased systemic levels of NO, TNF-α, and IL-17A and colonic expression of iNOS and NF-κB were observed in the same patients. Interestingly, the high ratio of NLR and MLR as well as NO production were significantly decreased in treated patients. Collectively, our findings suggest that nitric oxide as well as the blood count-based ratios (NLR, PLR, MLR) could constitute useful biomarkers in complicated Crohn's disease, predicting the response to treatments.
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Affiliation(s)
- Imene Soufli
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria.,Research Center of Biotechnology (CRBt), Constantine, Algeria
| | - Abdelkrim Hablal
- Surgery Department, Djilali Belkhenchir Hospital, Algiers, Algeria
| | - Samia Bessaad
- Anatomic Pathology Department, University Center Hospital Nefissa Hamoud, Algiers, Algeria
| | - Manel Amri
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
| | - Moussa Labsi
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
| | - Rania Sihem Boussa
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
| | - Fahima Ameur
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
| | - Houda Belguendouz
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria
| | - Sonia Ait Younes
- Anatomic Pathology Department, University Center Hospital Nefissa Hamoud, Algiers, Algeria
| | - Nassim Sid Idris
- Surgery Department, Djilali Belkhenchir Hospital, Algiers, Algeria.,Faculty of Medicine, Benyoucef Benkhedda University, Algiers, Algeria
| | - Chafia Touil-Boukoffa
- Faculty of Biological Sciences, Laboratory of Cellular and Molecular Biology-Team "Cytokines and NO Synthases", University of Sciences and Technology Houari Boumediene (USTHB), Algiers, Algeria. .,Research Center of Biotechnology (CRBt), Constantine, Algeria.
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17
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Alfredsson J, Fabrik I, Gorreja F, Caër C, Sihlbom C, Block M, Börjesson LG, Lindskog EB, Wick MJ. Isobaric labeling-based quantitative proteomics of FACS-purified immune cells and epithelial cells from the intestine of Crohn's disease patients reveals proteome changes of potential importance in disease pathogenesis. Proteomics 2023; 23:e2200366. [PMID: 36479858 DOI: 10.1002/pmic.202200366] [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: 09/20/2022] [Revised: 11/30/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022]
Abstract
Crohn's disease (CD) is a chronic condition characterized by recurrent flares of inflammation in the gastrointestinal tract. Disease etiology is poorly understood and is characterized by dysregulated immune activation that progressively destroys intestinal tissue. Key cellular compartments in disease pathogenesis are the intestinal epithelial layer and its underlying lamina propria. While the epithelium contains predominantly epithelial cells, the lamina propria is enriched in immune cells. Deciphering proteome changes in different cell populations is important to understand CD pathogenesis. Here, using isobaric labeling-based quantitative proteomics, we perform an exploratory study to analyze in-depth proteome changes in epithelial cells, immune cells and stromal cells in CD patients compared to controls using cells purified by FACS. Our study revealed increased proteins associated with neutrophil degranulation and mitochondrial metabolism in immune cells of CD intestinal mucosa. We also found upregulation of proteins involved in glycosylation and secretory pathways in epithelial cells of CD patients, while proteins involved in mitochondrial metabolism were reduced. The distinct alterations in protein levels in immune- versus epithelial cells underscores the utility of proteome analysis of defined cell types. Moreover, our workflow allowing concomitant assessment of cell-type specific changes on an individual basis enables deeper insight into disease pathogenesis.
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Affiliation(s)
- Johannes Alfredsson
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Ivo Fabrik
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Frida Gorreja
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Charles Caër
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
| | - Carina Sihlbom
- Proteomics Core Facility, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Mattias Block
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Lars G Börjesson
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Elinor Bexe Lindskog
- Department of Surgery, Institute of Clinical Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Mary Jo Wick
- Department of Microbiology and Immunology, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
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18
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Pan Y, Huang X, Zhou Z, Yang X, Li L, Gao C, Zhang Y, Zhang Y. Clinical significance of a novel uric-acid-based biomarker in the prediction of disease activity and response to infliximab therapy in Crohn's disease. Scand J Gastroenterol 2023:1-7. [PMID: 36829292 DOI: 10.1080/00365521.2023.2175181] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
OBJECTIVES Crohn's disease (CD) is an inflammatory bowel disease marked by a chronic remission-relapse cycle. Biomarkers are critical to reflect the bowel wall inflammation and detect the treatment response. Here, we investigated a new index-the ratio of neutrophil to uric acid (NUR)-as a predictor of CD activity and responses to infliximab (IFX) treatment. METHODS Clinical and laboratory data were retrieved for CD patients and healthy control subjects from an electronic medical records database. Disease and endoscopic activity were determined using the Crohn's Disease Activity Index (CDAI) and Simple Endoscopic Score for Crohn's Disease (SES-CD), respectively. RESULTS We found firstly that NUR was remarkably higher in CD patients (n = 162) than controls (n = 170) (0.27 ± 0.10 vs. 0.19 ± 0.04, p < .0001). NUR was positively correlated with disease activity and prior to treatment, it was lower in CD patients who responded to IFX than in those who did not (0.25 ± 0.07 vs. 0.38 ± 0.12, p = .0019). Pre-treatment NUR was effective in predicting the patients' responses to IFX (AUC = 0.8469, p = .0034). CONCLUSION The results of this study support the utility of NUR for detecting CD activity and predicting the response to IFX treatment.
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Affiliation(s)
- Yan Pan
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China.,Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xijing Huang
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.,Clinical Immunology Translational Medicine Key Laboratory of Sichuan Province, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Zhou Zhou
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xue Yang
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Liangping Li
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Caiping Gao
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Yan Zhang
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Yinghui Zhang
- Department of Gastroenterology, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
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19
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Olaloye O, Eke C, Jolteus A, Konnikova L. Single cell analysis via mass cytometry of spontaneous intestinal perforation reveals alterations in small intestinal innate and adaptive mucosal immunity. Front Immunol 2023; 14:995558. [PMID: 36825028 PMCID: PMC9941693 DOI: 10.3389/fimmu.2023.995558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 01/18/2023] [Indexed: 02/10/2023] Open
Abstract
Introduction Spontaneous intestinal perforation (SIP) is a poorly understood severe gastrointestinal complications of prematurity which is poorly understood. Extremely premature infants born prior to 28 weeks' gestation develop a localized perforation of the terminal ileum during the first week of life and therapy involves surgery and cessation of enteral feeds. Little is known regardj g the impact of mucosal immune dysfunction on disease pathogenesis. Methods We performed mass cytometry time of flight (CyTOF) of small intestinal mucosa of patients with SIP (Gestational age (GA) 24 - 27 weeks, n=8) compared to patients who had surgery for non-SIP conditions (neonatal (GA >36 weeks, n=5 ) and fetal intestine from elective terminations (GA 18-21 weeks, n=4). CyTOF analysis after stimulation of T cells with PMA/Ionomycin was also performed. Results We noted changes in innate and adaptive mucosal immunity in SIP. SIP mucosa had an expansion of ckit+ neutrophils, an influx of naïve CD4 and CD8 T cells and a reduction of effector memory T cells. SIP T cells were characterized by reduced CCR6 and CXCR3 expression and increased interferon gamma expression after stimulation. Discussion These findings suggest that previously unrecognized immune dysregulation is associated with SIP and should be explored in future studies.
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Affiliation(s)
- Oluwabunmi Olaloye
- Department of Pediatrics, Yale University, New Haven, CT, United States
- Division of Neonatal and Perinatal Medicine Yale University, New Haven, CT, United States
| | - Chino Eke
- Department of Pediatrics, Yale University, New Haven, CT, United States
| | - Abigail Jolteus
- Department of Pediatrics, Yale University, New Haven, CT, United States
| | - Liza Konnikova
- Department of Pediatrics, Yale University, New Haven, CT, United States
- Division of Neonatal and Perinatal Medicine Yale University, New Haven, CT, United States
- Department of Obstetrics, Gynecology, and Reproductive Sciences, New Haven, CT, United States
- Program in Human and Translational Immunology, Yale University, New Haven, CT, United States
- *Correspondence: Liza Konnikova,
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20
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Chen H, Wu X, Sun R, Lu H, Lin R, Gao X, Li G, Feng Z, Zhu R, Yao Y, Feng B, Liu Z. Dysregulation of CD177 + neutrophils on intraepithelial lymphocytes exacerbates gut inflammation via decreasing microbiota-derived DMF. Gut Microbes 2023; 15:2172668. [PMID: 36729914 PMCID: PMC9897772 DOI: 10.1080/19490976.2023.2172668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Neutrophils synergize with intestinal resident intraepithelial lymphocytes (IELs) to serve as the first-line defense and maintain intestinal homeostasis. However, the underlying mechanisms whereby neutrophils regulate IELs to inhibit intestinal inflammation are still not completely understood. Here, we found that depletion of neutrophils (especially CD177+ subset) caused expansion of colitogenic TCRγδ+CD8αα+ IELs, increased intestinal inflammation, and dysbiosis after dextran sulfate sodium exposure or Citrobacter rodentium infection in mice. scRNA-seq analysis revealed a pyroptosis-related gene signature and hyperresponsiveness to microbiota in TCRγδ+CD8αα+ IELs from colitic Cd177-/- mice. Microbiota-derived fumarate and its derivative dimethyl fumarate (DMF), as well as fumarate-producing microbiotas, decreased in the feces of colitic Cd177-/- mice. Elimination of dysbiosis by antibiotics treatment or co-housing procedure and DMF supplementation restrained TCRγδ+CD8αα+ IEL activation. Consistently, DMF significantly alleviated intestinal mucosal inflammation in mice through restricting gasdermin D (GSDMD)-induced pyroptosis of TCRγδ+CD8αα+ IELs. Therefore, our data reveal that neutrophils inhibit intestinal inflammation by promoting microbiota-derived DMF to regulate TCRγδ+CD8αα+ IEL activation in a GSDMD-mediated pyroptosis-dependent manner, and that DMF may serve as a therapeutic target for the management of intestinal inflammation.
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Affiliation(s)
- Huimin Chen
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiaohan Wu
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruicong Sun
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Huiying Lu
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ritian Lin
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xiang Gao
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Gengfeng Li
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Zhongsheng Feng
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ruixin Zhu
- Department of Bioinformatics, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yao Yao
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Baisui Feng
- Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhanju Liu
- Center for Inflammatory Bowel Disease Research, The Shanghai Tenth People’s Hospital, Tongji University School of Medicine, Shanghai, China,Department of Gastroenterology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China,Division of Immunology, School of Basic Medical Sciences, Henan University of Science and Technology, Luoyang, China,CONTACT Zhanju Liu Center for IBD Research, The Shanghai Tenth People’s Hospital of Tongji University, Shanghai, China
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21
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Li C, Liu X, Huang Z, Zhai Y, Li H, Wu J. Lactoferrin Alleviates Lipopolysaccharide-Induced Infantile Intestinal Immune Barrier Damage by Regulating an ELAVL1-Related Signaling Pathway. Int J Mol Sci 2022; 23:ijms232213719. [PMID: 36430202 PMCID: PMC9696789 DOI: 10.3390/ijms232213719] [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: 09/30/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
As the most important intestinal mucosal barrier of the main body, the innate immune barrier in intestinal tract plays especially pivotal roles in the overall health conditions of infants and young children; therefore, how to strengthen the innate immune barrier is pivotal. A variety of bioactivities of lactoferrin (LF) has been widely proved, including alleviating enteritis and inhibiting colon cancer; however, the effects of LF on intestinal immune barrier in infants and young children are still unclear, and the specific mechanism on how LF inhibits infantile enteritis by regulating immune signaling pathways is unrevealed. In the present study, we firstly performed pharmacokinetic analyses of LF in mice intestinal tissues, stomach tissues and blood, through different administration methods, to confirm the metabolic method of LF in mammals. Then we constructed in Vitro and in Vivo infantile intestinal immune barrier damage models utilizing lipopolysaccharide (LPS), and evaluated the effects of LF in alleviating LPS-induced intestinal immune barrier damage. Next, the related immune molecular mechanism on how LF exerted protective effects was investigated, through RNA-seq analyses of the mouse primary intestinal epithelial cells, and the specific genes were analyzed and screened out. Finally, the genes and their related immune pathway were validated in mRNA and protein levels; the portions of special immune cells (CD4+ T cells and CD8+ T cells) were also detected to further support our experimental results. Pharmacokinetic analyses demonstrated that the integrity of LF could reach mice stomach and intestine after oral gavage within 12 h, and the proper administration of LF should be the oral route. LF was proven to down-regulate the expression levels of inflammatory cytokines in both the primary intestinal epithelial cells and mice blood, especially LF without iron (Apo-LF), indicating LF alleviated infantile intestinal immune barrier damage induced by LPS. And through RNA-seq analyses of the mouse primary intestinal epithelial cells treated with LPS and LF, embryonic lethal abnormal vision Drosophila 1 (ELAVL1) was selected as one of the key genes, then the ELAVL1/PI3K/NF-κB pathway regulated by LF was verified to participate in the protection of infantile intestinal immune barrier damage in our study. Additionally, the ratio of blood CD4+/CD8+ T cells was significantly higher in the LF-treated mice than in the control mice, indicating that LF distinctly reinforced the overall immunity of infantile mice, further validating the strengthening bioactivity of LF on infantile intestinal immune barrier. In summary, LF was proven to alleviate LPS-induced intestinal immune barrier damage in young mice through regulating ELAVL1-related immune signaling pathways, which would expand current knowledge of the functions of bioactive proteins in foods within different research layers, as well as benefit preclinical and clinical researches in a long run.
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Affiliation(s)
- Chaonan Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100085, China
| | - Xinkui Liu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Zhihong Huang
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Yiyan Zhai
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
| | - Huiying Li
- Beijing Key Laboratory of Food Processing and Safety in Forestry, College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100085, China
- Correspondence: (H.L.); (J.W.)
| | - Jiarui Wu
- School of Chinese Pharmacy, Beijing University of Chinese Medicine, Beijing 102488, China
- Correspondence: (H.L.); (J.W.)
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22
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Lin J, Lu Z, Li G, Zhang C, Lu H, Gao S, Zhu R, Huang H, Aden K, Wang J, Cong Y, Wu H, Liu Z. MCPIP-1-Mediated Immunosuppression of Neutrophils Exacerbates Acute Bacterial Peritonitis and Liver Injury. J Innate Immun 2022; 15:262-282. [PMID: 36273448 PMCID: PMC10643898 DOI: 10.1159/000526784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 08/24/2022] [Indexed: 11/17/2023] Open
Abstract
Monocyte chemotactic protein-1-induced protein-1 (MCPIP-1) is highly expressed in activated immune cells and negatively regulates immune responses, while the mechanisms underlying the immunoregulation of neutrophils in acute bacterial infection and liver injury remain elusive. Here, we examined the role of MCPIP-1 in regulating neutrophil functions during acute bacterial peritonitis and liver injury. Mice with myeloid cell-specific overexpression (McpipMye-tg) or knockout (McpipΔMye) of MCPIP-1 were generated. We found that reactive oxygen species and myeloperoxidase production, formation of neutrophil extracellular traps, and migratory capacity were deficient in McpipMye-tg neutrophils but enhanced in McpipΔMye neutrophils. The recruitment of neutrophils and pathogen clearance were markedly suppressed in McpipMye-tg mice following intraperitoneal infection with Salmonella typhimurium while intensified in McpipΔMye mice. Severe acute S. typhimurium-infected peritonitis and liver injury occurred in McpipMye-tg mice but were alleviated in McpipΔMye mice. RNA sequencing, RNA-binding protein immunoprecipitation and qPCR analysis revealed that MCPIP-1 downregulated the protective functions of neutrophils via degrading the mRNA of cold inducible RNA-binding protein. Consistently, MCPIP-1 was highly expressed in neutrophils of patients with acute infectious diseases, especially in those with liver injury. Collectively, we uncover that MCPIP-1 negatively regulates the antibacterial capacities of neutrophils, leading to exacerbating severe acute bacterial peritonitis and liver injury. It may serve as a candidate target for maintaining neutrophil homeostasis to control acute infectious diseases.
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Affiliation(s)
- Jian Lin
- Department of Gastroenterology, Shanghai Tenth People's Hospital of Tongji University School of Medicine, Shanghai, China
- Department of Gastroenterology, Affiliated Hospital of Putian University, Putian, China
| | - Zhanjun Lu
- Department of Gastroenterology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Gengfeng Li
- Department of Gastroenterology, Shanghai Tenth People's Hospital of Tongji University School of Medicine, Shanghai, China
| | - Cui Zhang
- Department of Gastroenterology, Shanghai Tenth People's Hospital of Tongji University School of Medicine, Shanghai, China
| | - Huiying Lu
- Department of Gastroenterology, Shanghai Tenth People's Hospital of Tongji University School of Medicine, Shanghai, China
| | - Sheng Gao
- Department of Bioinformatics, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Ruixin Zhu
- Department of Bioinformatics, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Hailiang Huang
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Konrad Aden
- Department of Internal Medicine I, Institute of Clinical Molecular Biology, Christian-Albrechts-University, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jianhua Wang
- Storr Liver Unit, Westmead Millennium Institute, Westmead Hospital, University of Sydney, Sydney, New South Wales, Australia
| | - Yingzi Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA
| | - Huili Wu
- Department of Gastroenterology, Zhengzhou Central Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Zhanju Liu
- Department of Gastroenterology, Shanghai Tenth People's Hospital of Tongji University School of Medicine, Shanghai, China
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23
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ETS-1 facilitates Th1 cell-mediated mucosal inflammation in inflammatory bowel diseases through upregulating CIRBP. J Autoimmun 2022; 132:102872. [DOI: 10.1016/j.jaut.2022.102872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 11/24/2022]
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24
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A proteomic and RNA-seq transcriptomic dataset of capsaicin-aggravated mouse chronic colitis model. Sci Data 2022; 9:549. [PMID: 36071055 PMCID: PMC9452536 DOI: 10.1038/s41597-022-01637-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 08/11/2022] [Indexed: 11/08/2022] Open
Abstract
An inappropriate diet is a risk factor for inflammatory bowel disease (IBD). It is established that the consumption of spicy food containing capsaicin is strongly associated with the recurrence and worsening of IBD symptoms. Moreover, capsaicin can induce neutrophil accumulation in the lamina propria, contributing to disease deterioration. To uncover the potential signaling pathway involved in capsaicin-induced relapse and the effects of capsaicin on neutrophil activation, we performed proteomic analyses of intestinal tissues from chronic colitis mice following capsaicin administration and transcriptomic analyses of dHL-60 cells after capsaicin stimulation. Collectively, these multiomic analyses identified proteins and genes that may be involved in disease flares, thereby providing new insights for future research.
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