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Holers VM, Demoruelle KM, Buckner JH, James EA, Firestein GS, Robinson WH, Steere AC, Zhang F, Norris JM, Kuhn KA, Deane KD. Distinct mucosal endotypes as initiators and drivers of rheumatoid arthritis. Nat Rev Rheumatol 2024; 20:601-613. [PMID: 39251771 DOI: 10.1038/s41584-024-01154-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/30/2024] [Indexed: 09/11/2024]
Abstract
Rheumatoid arthritis (RA) is a potentially devastating autoimmune disease. The great majority of patients with RA are seropositive for anti-citrullinated protein antibodies (ACPAs), rheumatoid factors, or other autoantibodies. The onset of clinically apparent inflammatory arthritis meeting classification criteria (clinical RA) is preceded by ACPA seropositivity for an average of 3-5 years, a period that is designated as 'at-risk' of RA for ACPA-positive individuals who do not display signs of arthritis, or 'pre-RA' for individuals who are known to have progressed to developing clinical RA. Prior studies of individuals at-risk of RA have associated pulmonary mucosal inflammation with local production of ACPAs and rheumatoid factors, leading to development of the 'mucosal origins hypothesis'. Recent work now suggests the presence of multiple distinct mucosal site-specific mechanisms that drive RA evolution. Indicatively, subsets of individuals at-risk of RA and patients with RA harbour a faecal bacterial strain that has exhibited arthritogenic activity in animal models and that favours T helper 17 (TH17) cell responses in patients. Periodontal inflammation and oral microbiota have also been suggested to promote the development of arthritis through breaches in the mucosal barrier. Herein, we argue that mucosal sites and their associated microbial strains can contribute to RA evolution via distinct pathogenic mechanisms, which can be considered causal mucosal endotypes. Future therapies instituted for prevention in the at-risk period, or, perhaps, during clinical RA as therapeutics for active arthritis, will possibly have to address these individual mechanisms as part of precision medicine approaches.
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Affiliation(s)
- V Michael Holers
- Division of Rheumatology, University of Colorado Denver, Aurora, CO, USA.
| | | | | | | | - Gary S Firestein
- Division of Rheumatology, Allergy and Immunology, University of California San Diego, La Jolla, CA, USA
| | - William H Robinson
- Division of Immunology and Rheumatology, Stanford University, Stanford, CA, USA
- VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Allen C Steere
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Fan Zhang
- Division of Rheumatology, University of Colorado Denver, Aurora, CO, USA
| | - Jill M Norris
- Department of Epidemiology, Colorado School of Public Health, Aurora, CO, USA
| | - Kristine A Kuhn
- Division of Rheumatology, University of Colorado Denver, Aurora, CO, USA
| | - Kevin D Deane
- Division of Rheumatology, University of Colorado Denver, Aurora, CO, USA
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Dora D, Szőcs E, Soós Á, Halasy V, Somodi C, Mihucz A, Rostás M, Mógor F, Lohinai Z, Nagy N. From bench to bedside: an interdisciplinary journey through the gut-lung axis with insights into lung cancer and immunotherapy. Front Immunol 2024; 15:1434804. [PMID: 39301033 PMCID: PMC11410641 DOI: 10.3389/fimmu.2024.1434804] [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: 05/18/2024] [Accepted: 08/20/2024] [Indexed: 09/22/2024] Open
Abstract
This comprehensive review undertakes a multidisciplinary exploration of the gut-lung axis, from the foundational aspects of anatomy, embryology, and histology, through the functional dynamics of pathophysiology, to implications for clinical science. The gut-lung axis, a bidirectional communication pathway, is central to understanding the interconnectedness of the gastrointestinal- and respiratory systems, both of which share embryological origins and engage in a continuous immunological crosstalk to maintain homeostasis and defend against external noxa. An essential component of this axis is the mucosa-associated lymphoid tissue system (MALT), which orchestrates immune responses across these distant sites. The review delves into the role of the gut microbiome in modulating these interactions, highlighting how microbial dysbiosis and increased gut permeability ("leaky gut") can precipitate systemic inflammation and exacerbate respiratory conditions. Moreover, we thoroughly present the implication of the axis in oncological practice, particularly in lung cancer development and response to cancer immunotherapies. Our work seeks not only to synthesize current knowledge across the spectrum of science related to the gut-lung axis but also to inspire future interdisciplinary research that bridges gaps between basic science and clinical application. Our ultimate goal was to underscore the importance of a holistic understanding of the gut-lung axis, advocating for an integrated approach to unravel its complexities in human health and disease.
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Affiliation(s)
- David Dora
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Emőke Szőcs
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Ádám Soós
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Viktória Halasy
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Csenge Somodi
- Translational Medicine Institute, Semmelweis University, Budapest, Hungary
| | - Anna Mihucz
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Melinda Rostás
- Department of Biochemistry and Molecular Biology, University of Debrecen, Debrecen, Hungary
| | - Fruzsina Mógor
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
| | - Zoltan Lohinai
- Translational Medicine Institute, Semmelweis University, Budapest, Hungary
| | - Nándor Nagy
- Department of Anatomy, Histology and Embryology, Semmelweis University, Budapest, Hungary
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Vilardi A, Przyborski S, Mobbs C, Rufini A, Tufarelli C. Current understanding of the interplay between extracellular matrix remodelling and gut permeability in health and disease. Cell Death Discov 2024; 10:258. [PMID: 38802341 PMCID: PMC11130177 DOI: 10.1038/s41420-024-02015-1] [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: 03/25/2024] [Accepted: 05/07/2024] [Indexed: 05/29/2024] Open
Abstract
The intestinal wall represents an interactive network regulated by the intestinal epithelium, extracellular matrix (ECM) and mesenchymal compartment. Under healthy physiological conditions, the epithelium undergoes constant renewal and forms an integral and selective barrier. Following damage, the healthy epithelium is restored via a series of signalling pathways that result in remodelling of the scaffolding tissue through finely-regulated proteolysis of the ECM by proteases such as matrix metalloproteinases (MMPs). However, chronic inflammation of the gastrointestinal tract, as occurs in Inflammatory Bowel Disease (IBD), is associated with prolonged disruption of the epithelial barrier and persistent damage to the intestinal mucosa. Increased barrier permeability exhibits distinctive signatures of inflammatory, immunological and ECM components, accompanied by increased ECM proteolytic activity. This narrative review aims to bring together the current knowledge of the interplay between gut barrier, immune and ECM features in health and disease, discussing the role of barrier permeability as a discriminant between homoeostasis and IBD.
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Affiliation(s)
- Aurora Vilardi
- Cancer Research Centre, University of Leicester, Leicester, LE2 7LX, United Kingdom
| | - Stefan Przyborski
- Department of Biosciences, Durham University, Durham, DH1 3LE, United Kingdom
| | - Claire Mobbs
- Department of Biosciences, Durham University, Durham, DH1 3LE, United Kingdom
| | - Alessandro Rufini
- Cancer Research Centre, University of Leicester, Leicester, LE2 7LX, United Kingdom.
- Department of Biosciences, University of Milan, Milan, 20133, Italy.
| | - Cristina Tufarelli
- Cancer Research Centre, University of Leicester, Leicester, LE2 7LX, United Kingdom.
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Qin P, He Y, Shao H, Jiang D. Genetic insights into gut microbiota and risk of prostatitis: a Mendelian randomization study. Front Microbiol 2024; 15:1389715. [PMID: 38680919 PMCID: PMC11045958 DOI: 10.3389/fmicb.2024.1389715] [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: 02/22/2024] [Accepted: 03/29/2024] [Indexed: 05/01/2024] Open
Abstract
Background The dysbiosis of gut microbiota (GM) is considered a contributing factor to prostatitis, yet the causality remains incompletely understood. Methods The genome-wide association study (GWAS) data for GM and prostatitis were sourced from MiBioGen and FinnGen R10, respectively. In the two-sample Mendelian randomization (MR) analysis, inverse variance weighting (IVW), MR-Egger, weighted median, simple mode, weighted mode, and maximum likelihood (ML) methods were utilized to investigate the causal relationship between GM and prostatitis. A series of sensitivity analysis were conducted to confirm the robustness of the main results obtained from the MR analysis. Results According to the IVW results, genus Sutterella (OR: 1.37, 95% CI: 1.09-1.71, p = 0.006) and genus Holdemania (OR: 1.21, 95% CI: 1.02-1.43, p = 0.028) were associated with an increased risk of prostatitis. The phylum Verrucomicrobia (OR: 0.76, 95% CI: 0.58-0.98, p = 0.033) and genus Parasutterella (OR: 0.84, 95% CI: 0.70-1.00, p = 0.045) exhibited a negative association with prostatitis, indicating a potential protective effect. Sensitivity analysis showed that these results were not affected by heterogeneity and horizontal pleiotropy. Furthermore, the majority of statistical methods yielded results consistent with those of the IVW analysis. Conclusions In this study, we identified two GM taxon that might be protective against prostatitis and two GM taxon that could increase the risk of developing prostatitis. These findings could potentially provide a valuable theoretical basis for the future development of preventive and therapeutic strategies for prostatitis.
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Affiliation(s)
| | | | | | - Dawei Jiang
- Department of Urology, Zhejiang Chinese Medical University Affiliated Jiaxing TCM Hospital, Jiaxing, China
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Rieder F, Mukherjee PK, Massey WJ, Wang Y, Fiocchi C. Fibrosis in IBD: from pathogenesis to therapeutic targets. Gut 2024; 73:854-866. [PMID: 38233198 PMCID: PMC10997492 DOI: 10.1136/gutjnl-2023-329963] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 12/29/2023] [Indexed: 01/19/2024]
Abstract
BACKGROUND Intestinal fibrosis resulting in stricture formation and obstruction in Crohn's disease (CD) and increased wall stiffness leading to symptoms in ulcerative colitis (UC) is among the largest unmet needs in inflammatory bowel disease (IBD). Fibrosis is caused by a multifactorial and complex process involving immune and non-immune cells, their soluble mediators and exposure to luminal contents, such as microbiota and environmental factors. To date, no antifibrotic therapy is available. Some progress has been made in creating consensus definitions and measurements to quantify stricture morphology for clinical practice and trials, but approaches to determine the degree of fibrosis within a stricture are still lacking. OBJECTIVE We herein describe the current state of stricture pathogenesis, measuring tools and clinical trial endpoints development. DESIGN Data presented and discussed in this review derive from the past and recent literature and the authors' own research and experience. RESULTS AND CONCLUSIONS Significant progress has been made in better understanding the pathogenesis of fibrosis, but additional studies and preclinical developments are needed to define specific therapeutic targets.
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Affiliation(s)
- Florian Rieder
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Pranab K Mukherjee
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - William J Massey
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Yan Wang
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
| | - Claudio Fiocchi
- Department of Inflammation and Immunity, Cleveland Clinic Foundation, Cleveland, Ohio, USA
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Asal M, Rep M, Bontkes HJ, van Vliet SJ, Mebius RE, Gibbs S. Towards Full Thickness Small Intestinal Models: Incorporation of Stromal Cells. Tissue Eng Regen Med 2024; 21:369-377. [PMID: 38113015 PMCID: PMC10987430 DOI: 10.1007/s13770-023-00600-6] [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: 06/02/2023] [Revised: 08/30/2023] [Accepted: 09/18/2023] [Indexed: 12/21/2023] Open
Abstract
INTRODUCTION Since small intestine is one of the major barriers of the human body, there is a need to develop reliable in vitro human small intestinal models. These models should incorporate both the epithelial and lamina propria compartments and have similar barrier properties compared to that of the human tissue. These properties are essential for various applications, such as studying cell-cell interaction, intestinal diseases and testing permeability and metabolism of drugs and other compounds. The small intestinal lamina propria contains multiple stromal cell populations with several important functions, such as secretion of extracellular matrix proteins and soluble mediators. In addition, stromal cells influence the intestinal epithelial barrier, support the intestinal stem cell niche and interact with immune cells. METHODS In this review, we provide an extensive overview on the different types of lamina propria stromal cells found in small intestine and describe a combination of molecular markers that can be used to distinguish each different stromal cell type. We focus on studies that incorporated stromal cells into human representative small intestine models cultured on transwells. RESULTS AND CONCLUSION These models display enhanced epithelial morphology, increased cell proliferation and human-like barrier properties, such as low transepithelial electrical resistance (TEER) and intermediate permeability, thus better mimicking the native human small intestine than models only consisting of an epithelium which generally show high TEER and low permeability.
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Affiliation(s)
- Melis Asal
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Mila Rep
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Hetty J Bontkes
- Laboratory Medical Immunology, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Sandra J van Vliet
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
- Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands
| | - Reina E Mebius
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands
| | - Susan Gibbs
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC, Vrije Universiteit, Amsterdam, The Netherlands.
- Cancer Center Amsterdam, Amsterdam Infection and Immunity Institute, Amsterdam, The Netherlands.
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands.
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Abdulnour-Nakhoul SM, Kolls JK, Flemington EK, Ungerleider NA, Nakhoul HN, Song K, Nakhoul NL. Alterations in gene expression and microbiome composition upon calcium-sensing receptor deletion in the mouse esophagus. Am J Physiol Gastrointest Liver Physiol 2024; 326:G438-G459. [PMID: 38193195 PMCID: PMC11213479 DOI: 10.1152/ajpgi.00066.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 12/17/2023] [Accepted: 12/23/2023] [Indexed: 01/10/2024]
Abstract
The calcium-sensing receptor (CaSR), a G protein-coupled receptor, regulates Ca2+ concentration in plasma by regulating parathyroid hormone secretion. In other tissues, it is reported to play roles in cellular differentiation and migration and in secretion and absorption. We reported previously that CaSR can be conditionally deleted in the mouse esophagus. This conditional knockout (KO) (EsoCaSR-/-) model showed a significant reduction in the levels of adherens and tight junction proteins and had a marked buildup of bacteria on the luminal esophageal surface. To further examine the role of CaSR, we used RNA sequencing to determine gene expression profiles in esophageal epithelia of control and EsoCaSR-/-mice RNA Seq data indicated upregulation of gene sets involved in DNA replication and cell cycle in EsoCaSR-/-. This is accompanied by the downregulation of gene sets involved in the innate immune response and protein homeostasis including peptide elongation and protein trafficking. Ingenuity pathway analysis (IPA) demonstrated that these genes are mapped to important biological networks including calcium and Ras homologus A (RhoA) signaling pathways. To further explore the bacterial buildup in EsoCaSR-/- esophageal tissue, 16S sequencing of the mucosal-associated bacterial microbiome was performed. Three bacterial species, g_Rodentibacter, s_Rodentibacter_unclassified, and s_Lactobacillus_hilgardi were significantly increased in EsoCaSR-/-. Furthermore, metagenomic analysis of 16S sequences indicated that pathways related to oxidative phosphorylation and metabolism were downregulated in EsoCaSR-/- tissues. These data demonstrate that CaSR impacts major pathways of cell proliferation, differentiation, cell cycle, and innate immune response in esophageal epithelium. The disruption of these pathways causes inflammation and significant modifications of the microbiome.NEW & NOTEWORTHY Calcium-sensing receptor (CaSR) plays a significant role in maintaining the barrier function of esophageal epithelium. Using RNA sequencing, we show that conditional deletion of CaSR from mouse esophagus causes upregulation of genes involved in DNA replication and cell cycle and downregulation of genes involved in the innate immune response, protein translation, and cellular protein synthesis. Pathway analysis shows disruption of signaling pathways of calcium and actin cytoskeleton. These changes caused inflammation and esophageal dysbiosis.
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Affiliation(s)
- Solange M Abdulnour-Nakhoul
- Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Jay K Kolls
- Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Erik K Flemington
- Department of Pathology, Tulane University, New Orleans, Louisiana, United States
| | - Nathan A Ungerleider
- Department of Pathology, Tulane University, New Orleans, Louisiana, United States
| | - Hani N Nakhoul
- Department of Pathology, Tulane University, New Orleans, Louisiana, United States
| | - Kejing Song
- Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Center for Translational Research in Infection and Inflammation, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Nazih L Nakhoul
- Deming Department of Medicine, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Physiology, Tulane University School of Medicine, New Orleans, Louisiana, United States
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Li J, Ji Y, Chen N, Dai L, Deng H. Colitis-associated carcinogenesis: crosstalk between tumors, immune cells and gut microbiota. Cell Biosci 2023; 13:194. [PMID: 37875976 PMCID: PMC10594787 DOI: 10.1186/s13578-023-01139-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 09/21/2023] [Indexed: 10/26/2023] Open
Abstract
Colorectal cancer (CRC) is the third most common cancer worldwide. One of the main causes of colorectal cancer is inflammatory bowel disease (IBD), which includes ulcerative colitis (UC) and Crohn's disease (CD). Intestinal epithelial cells (IECs), intestinal mesenchymal cells (IMCs), immune cells, and gut microbiota construct the main body of the colon and maintain colon homeostasis. In the development of colitis and colitis-associated carcinogenesis, the damage, disorder or excessive recruitment of different cells such as IECs, IMCs, immune cells and intestinal microbiota play different roles during these processes. This review aims to discuss the various roles of different cells and the crosstalk of these cells in transforming intestinal inflammation to cancer, which provides new therapeutic methods for chemotherapy, targeted therapy, immunotherapy and microbial therapy.
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Affiliation(s)
- Junshu Li
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Ke Yuan Road 4, No. 1 Gao Peng Street, Chengdu, 610041, China
| | - Yanhong Ji
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Ke Yuan Road 4, No. 1 Gao Peng Street, Chengdu, 610041, China
| | - Na Chen
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Ke Yuan Road 4, No. 1 Gao Peng Street, Chengdu, 610041, China
| | - Lei Dai
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Ke Yuan Road 4, No. 1 Gao Peng Street, Chengdu, 610041, China.
| | - Hongxin Deng
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Ke Yuan Road 4, No. 1 Gao Peng Street, Chengdu, 610041, China.
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He YB, Jin HZ, Zhao JL, Wang C, Ma WR, Xing J, Zhang XB, Zhang YY, Dai HD, Zhao NS, Zhang JF, Zhang GX, Zhang J. Single-cell transcriptomic analysis reveals differential cell subpopulations and distinct phenotype transition in normal and dissected ascending aorta. Mol Med 2022; 28:158. [PMID: 36536281 PMCID: PMC9764678 DOI: 10.1186/s10020-022-00584-4] [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: 05/17/2022] [Accepted: 12/01/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Acute thoracic aortic dissection (ATAD) is a fatal condition characterized by tear of intima, formation of false lumen and rupture of aorta. However, the subpopulations of normal and dissected aorta remain less studied. METHODS Single-cell RNA sequencing was performed including 5 patients with ATAD and 4 healthy controls. Immunohistochemistry and immunofluorescence were used to verify the findings. RESULTS We got 8 cell types from human ascending aorta and identified 50 subpopulations including vascular smooth muscle cells (VSMCs), endothelial cells, fibroblasts, neutrophils, monocytes and macrophages. Six transmembrane epithelial antigen of prostate 4 metalloreductase (STEAP4) was identified as a new marker of synthetic VSMCs. CytoTRACE identified subpopulations with higher differentiation potential in specified cell types including synthetic VSMCs, enolase 1+ fibroblasts and myeloid-derived neutrophils. Synthetic VSMCs-derived C-X-C motif chemokine ligand 12 (CXCL12) might interact with neutrophils and fibroblasts via C-X-C motif chemokine receptor 4 (CXCR4) and atypical chemokine receptor 3 (ACKR3), respectively, which might recruit neutrophils and induce transdifferentitation of fibroblasts into synthetic VSMCs. CONCLUSION We characterized signatures of different cell types in normal and dissected human ascending aorta and identified a new marker for isolation of synthetic VSMCs. Moreover, we proposed a potential mechanism that synthetic VSMCs might interact with neutrophils and fibroblasts via CXCL12-CXCR4/ACKR3 axis whereby deteriorating the progression of ATAD, which might provide new insights to better understand the development and progression of ATAD.
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Affiliation(s)
- Yu-bin He
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Hai-zhen Jin
- grid.16821.3c0000 0004 0368 8293Department of Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Jin-long Zhao
- grid.412528.80000 0004 1798 5117Department of Cardiovascular Surgery, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Chong Wang
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Wen-rui Ma
- grid.8547.e0000 0001 0125 2443Department of Cardiac Surgery, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jie Xing
- grid.16821.3c0000 0004 0368 8293Department of Biobank, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-bin Zhang
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Yang-yang Zhang
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Huang-dong Dai
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Nai-shi Zhao
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Jian-feng Zhang
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
| | - Guan-xin Zhang
- grid.73113.370000 0004 0369 1660Department of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, No.168, Changhai Road, Shanghai, China
| | - Jing Zhang
- grid.16821.3c0000 0004 0368 8293Department of Cardiovascular Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, No.241, West Huaihai Road, Shanghai, 200030 China
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Sazonovs A, Stevens CR, Venkataraman GR, Yuan K, Avila B, Abreu MT, Ahmad T, Allez M, Ananthakrishnan AN, Atzmon G, Baras A, Barrett JC, Barzilai N, Beaugerie L, Beecham A, Bernstein CN, Bitton A, Bokemeyer B, Chan A, Chung D, Cleynen I, Cosnes J, Cutler DJ, Daly A, Damas OM, Datta LW, Dawany N, Devoto M, Dodge S, Ellinghaus E, Fachal L, Farkkila M, Faubion W, Ferreira M, Franchimont D, Gabriel SB, Ge T, Georges M, Gettler K, Giri M, Glaser B, Goerg S, Goyette P, Graham D, Hämäläinen E, Haritunians T, Heap GA, Hiltunen M, Hoeppner M, Horowitz JE, Irving P, Iyer V, Jalas C, Kelsen J, Khalili H, Kirschner BS, Kontula K, Koskela JT, Kugathasan S, Kupcinskas J, Lamb CA, Laudes M, Lévesque C, Levine AP, Lewis JD, Liefferinckx C, Loescher BS, Louis E, Mansfield J, May S, McCauley JL, Mengesha E, Mni M, Moayyedi P, Moran CJ, Newberry RD, O'Charoen S, Okou DT, Oldenburg B, Ostrer H, Palotie A, Paquette J, Pekow J, Peter I, Pierik MJ, Ponsioen CY, Pontikos N, Prescott N, Pulver AE, Rahmouni S, Rice DL, Saavalainen P, Sands B, Sartor RB, Schiff ER, Schreiber S, Schumm LP, Segal AW, Seksik P, Shawky R, Sheikh SZ, Silverberg MS, Simmons A, Skeiceviciene J, Sokol H, Solomonson M, Somineni H, Sun D, Targan S, Turner D, Uhlig HH, van der Meulen AE, Vermeire S, Verstockt S, Voskuil MD, Winter HS, Young J, Duerr RH, Franke A, Brant SR, Cho J, Weersma RK, Parkes M, Xavier RJ, Rivas MA, Rioux JD, McGovern DPB, Huang H, Anderson CA, Daly MJ. Large-scale sequencing identifies multiple genes and rare variants associated with Crohn's disease susceptibility. Nat Genet 2022; 54:1275-1283. [PMID: 36038634 PMCID: PMC9700438 DOI: 10.1038/s41588-022-01156-2] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/12/2022] [Indexed: 01/18/2023]
Abstract
Genome-wide association studies (GWASs) have identified hundreds of loci associated with Crohn's disease (CD). However, as with all complex diseases, robust identification of the genes dysregulated by noncoding variants typically driving GWAS discoveries has been challenging. Here, to complement GWASs and better define actionable biological targets, we analyzed sequence data from more than 30,000 patients with CD and 80,000 population controls. We directly implicate ten genes in general onset CD for the first time to our knowledge via association to coding variation, four of which lie within established CD GWAS loci. In nine instances, a single coding variant is significantly associated, and in the tenth, ATG4C, we see additionally a significantly increased burden of very rare coding variants in CD cases. In addition to reiterating the central role of innate and adaptive immune cells as well as autophagy in CD pathogenesis, these newly associated genes highlight the emerging role of mesenchymal cells in the development and maintenance of intestinal inflammation.
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Affiliation(s)
- Aleksejs Sazonovs
- Genomics of Inflammation and Immunity Group, Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Christine R Stevens
- Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | | | - Kai Yuan
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
| | - Brandon Avila
- Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Maria T Abreu
- Crohn's and Colitis Center, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, USA
| | | | - Matthieu Allez
- Hopital Saint-Louis, APHP, Universite de Paris, INSERM U1160, Paris, France
| | - Ashwin N Ananthakrishnan
- Division of Gastroenterology, Crohn's and Colitis Center, Massachusetts General Hospital, Boston, MA, USA
| | - Gil Atzmon
- Department for Human Biology, University of Haifa, Haifa, Israel
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Aris Baras
- Regeneron Genetics Center, Tarrytown, NY, USA
| | - Jeffrey C Barrett
- Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Nir Barzilai
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
- The Institute for Aging Research, The Nathan Shock Center of Excellence in the Basic Biology of Aging and the Paul F. Glenn Center for the Biology of Human Aging Research at Albert Einstein College of Medicine of Yeshiva University, Bronx, NY, USA
| | - Laurent Beaugerie
- Gastroenterology Department, Sorbonne Universite, Saint Antoine Hospital, Paris, France
| | - Ashley Beecham
- John P. Hussman Institute for Human Genomics, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, USA
- The Dr. John T. Macdonald Foundation Department of Human Genetics, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, USA
| | | | - Alain Bitton
- McGill University and McGill University Health Centre, Montreal, Quebec, Canada
| | - Bernd Bokemeyer
- Department of Internal Medicine, University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Andrew Chan
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, MA, USA
- Channing Division of Network Medicine, Department of Medicine, Brigham and Womens Hospital, Boston, MA, USA
| | | | | | - Jacques Cosnes
- Professeur Chef de Service chez APHP and Universite Paris-6, Paris, France
| | - David J Cutler
- Department of Human Genetics, Emory University, Atlanta, GA, USA
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Allan Daly
- Human Genetics Informatics, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | | | - Lisa W Datta
- Meyerhoff Inflammatory Bowel Disease Center, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Noor Dawany
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA
| | - Marcella Devoto
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA
- University of Rome Sapienza, Rome, Italy
- IRGB - CNR, Cagliari, Italy
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Sheila Dodge
- Genomics Platform, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Eva Ellinghaus
- Christian-Albrechts-University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Laura Fachal
- Genomics of Inflammation and Immunity Group, Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | | | | | | | | | - Stacey B Gabriel
- Genomics Platform, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Tian Ge
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Psychiatric and Neurodevelopmental Genetics Unit, Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA
- Center for Precision Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | | | - Kyle Gettler
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Mamta Giri
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Benjamin Glaser
- Department of Endocrinology and Metabolism, Hadassah Medical Center and Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem, Israel
| | | | - Philippe Goyette
- Research Center Montreal Heart Institute, Montreal, Quebec, Canada
| | - Daniel Graham
- Infectious Disease and Microbiome Program, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Eija Hämäläinen
- Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Talin Haritunians
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | | | - Mikko Hiltunen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Marc Hoeppner
- Christian-Albrechts-University of Kiel, Kiel, Germany
| | | | - Peter Irving
- Department of Gastroenterology, Guys and Saint Thomas Hospital, London, UK
- School of Immunology and Microbial Sciences, Kings College London, London, UK
| | - Vivek Iyer
- Human Genetics Informatics, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Chaim Jalas
- Director of Genetic Resources and Services, Center for Rare Jewish Genetic Disorders, Bonei Olam, Brooklyn, NY, USA
| | - Judith Kelsen
- Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, PA, USA
| | - Hamed Khalili
- Clinical and Translational Epidemiology Unit, Massachusetts General Hospital, Boston, MA, USA
| | - Barbara S Kirschner
- Department of Gastroenterology, University of Chicago Medicine, Chicago, IL, USA
| | - Kimmo Kontula
- Department of Medicine, Helsinki University Hospital, and Research Program for Clinical and Molecular Metabolism, University of Helsinki, Helsinki, Finland
| | - Jukka T Koskela
- Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Subra Kugathasan
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Juozas Kupcinskas
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Christopher A Lamb
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Department of Gastroenterology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | | | - Chloé Lévesque
- Research Center Montreal Heart Institute, Montreal, Quebec, Canada
| | | | - James D Lewis
- Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
- Crohn's and Colitis Foundation, New York, NY, USA
| | | | - Britt-Sabina Loescher
- Christian-Albrechts-University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | | | - John Mansfield
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Department of Gastroenterology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Sandra May
- Christian-Albrechts-University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Jacob L McCauley
- John P. Hussman Institute for Human Genomics, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, USA
- The Dr. John T. Macdonald Foundation Department of Human Genetics, Leonard M. Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Emebet Mengesha
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Myriam Mni
- University of Liège, ULG, Liège, Belgium
| | | | | | | | | | - David T Okou
- Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
- Institut National de Sante Publique (INSP), Abidjan, Côte d'Ivoire
| | - Bas Oldenburg
- Department of Gastroenterology and Hepatology, University Medical Centre Utrecht, Utrecht, The Netherlands
| | - Harry Ostrer
- Albert Einstein College of Medicine, Bronx, NY, USA
| | - Aarno Palotie
- Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA
- Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
- Department of Psychiatry, Massachusetts General Hospital, Boston, MA, USA
| | - Jean Paquette
- Research Center Montreal Heart Institute, Montreal, Quebec, Canada
| | - Joel Pekow
- Department of Gastroenterology, University of Chicago Medicine, Chicago, IL, USA
| | - Inga Peter
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Marieke J Pierik
- Department of Gastroenterology and Hepatology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Cyriel Y Ponsioen
- Department of Gastroenterology and Hepatology, Amsterdam University Medical Centres, Amsterdam, The Netherlands
| | | | - Natalie Prescott
- Department of Medical and Molecular Genetics, Kings College London, London, UK
| | - Ann E Pulver
- School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | | | - Daniel L Rice
- Genomics of Inflammation and Immunity Group, Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK
| | - Päivi Saavalainen
- Research Programs Unit, Immunobiology, University of Helsinki, Helsinki, Finland
| | - Bruce Sands
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - R Balfour Sartor
- Center for Gastrointestinal Biology and Disease, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | | | - Stefan Schreiber
- Christian-Albrechts-University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - L Philip Schumm
- Department of Public Health Sciences, University of Chicago, Chicago, IL, USA
| | | | - Philippe Seksik
- Gastroenterology Department, Sorbonne Universite, Saint Antoine Hospital, Paris, France
| | - Rasha Shawky
- IBD BioResource, NIHR BioResource, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Shehzad Z Sheikh
- Center for Gastrointestinal Biology and Disease, University of North Carolina School of Medicine, Chapel Hill, NC, USA
| | | | - Alison Simmons
- MRC Human Immunology Unit, NIHR Biomedical Research Centre, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Jurgita Skeiceviciene
- Department of Gastroenterology and Institute for Digestive Research, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Harry Sokol
- Gastroenterology Department, Sorbonne Universite, Saint Antoine Hospital, Paris, France
| | - Matthew Solomonson
- Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Hari Somineni
- Department of Pediatrics, Emory University School of Medicine and Children's Healthcare of Atlanta, Atlanta, GA, USA
| | - Dylan Sun
- Regeneron Genetics Center, Tarrytown, NY, USA
| | - Stephan Targan
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Dan Turner
- Shaare Zedek Medical Center, Jerusalem, Israel
| | - Holm H Uhlig
- Translational Gastroenterology Unit and Biomedical Research Centre, Nuffield Department of Clinical Medicine, Experimental Medicine Division, University of Oxford, Oxford, UK
- Department of Pediatrics, John Radcliffe Hospital, Oxford, UK
| | - Andrea E van der Meulen
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Séverine Vermeire
- University Hospitals Leuven, Leuven, Belgium
- Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Sare Verstockt
- Department of Chronic Diseases and Metabolism, KU Leuven, Leuven, Belgium
| | - Michiel D Voskuil
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | | | | | | | - Andre Franke
- Christian-Albrechts-University of Kiel and University Medical Center Schleswig-Holstein, Kiel, Germany
| | - Steven R Brant
- Meyerhoff Inflammatory Bowel Disease Center, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Crohn's Colitis Center of New Jersey, Department of Medicine, Rutgers Robert Wood Johnson Medical School and Department of Genetics and the Human Genetics Institute of New Jersey, Rutgers University, New Brunswick and Piscataway, NJ, USA
| | - Judy Cho
- Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands
| | - Miles Parkes
- Department of Gastroenterology, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - Ramnik J Xavier
- Infectious Disease and Microbiome Program, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Molecular Biology, Massachusetts General Hospital, Boston, MA, USA
- Kurt Isselbacher Professor of Medicine at Harvard Medical School, Cambridge, MA, USA
- Core Institute Member, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Klarman Cell Observatory, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Immunology Program, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Center for Microbiome Informatics and Therapeutics at MIT, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Manuel A Rivas
- Department of Biomedical Data Science, Stanford University, Stanford, CA, USA
| | - John D Rioux
- Research Center Montreal Heart Institute, Montreal, Quebec, Canada
- Faculty of Medicine, Université de Montréal, Montreal, Canada
| | - Dermot P B McGovern
- F. Widjaja Foundation Inflammatory Bowel and Immunobiology Research Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA
| | - Hailiang Huang
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
| | - Carl A Anderson
- Genomics of Inflammation and Immunity Group, Human Genetics Programme, Wellcome Sanger Institute, Wellcome Genome Campus, Hinxton, UK.
| | - Mark J Daly
- Program in Medical and Population Genetics, The Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA.
- Analytic and Translational Genetics Unit, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.
- Institute for Molecular Medicine Finland, FIMM, HiLIFE, University of Helsinki, Helsinki, Finland.
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11
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Chalkidi N, Paraskeva C, Koliaraki V. Fibroblasts in intestinal homeostasis, damage, and repair. Front Immunol 2022; 13:924866. [PMID: 36032088 PMCID: PMC9399414 DOI: 10.3389/fimmu.2022.924866] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
The mammalian intestine is a self-renewing tissue that ensures nutrient absorption while acting as a barrier against environmental insults. This is achieved by mature intestinal epithelial cells, the renewing capacity of intestinal stem cells at the base of the crypts, the development of immune tolerance, and the regulatory functions of stromal cells. Upon intestinal injury or inflammation, this tightly regulated mucosal homeostasis is disrupted and is followed by a series of events that lead to tissue repair and the restoration of organ function. It is now well established that fibroblasts play significant roles both in the maintenance of epithelial and immune homeostasis in the intestine and the response to tissue damage mainly through the secretion of a variety of soluble mediators and ligands and the remodeling of the extracellular matrix. In addition, recent advances in single-cell transcriptomics have revealed an unexpected heterogeneity of fibroblasts that comprise distinct cell subsets in normal and inflammatory conditions, indicative of diverse functions. However, there is still little consensus on the number, terminology, and functional properties of these subsets. Moreover, it is still unclear how individual fibroblast subsets can regulate intestinal repair processes and what is their impact on the pathogenesis of inflammatory bowel disease. In this mini-review, we aim to provide a concise overview of recent advances in the field, that we believe will help clarify current concepts on fibroblast heterogeneity and functions and advance our understanding of the contribution of fibroblasts in intestinal damage and repair.
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12
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Eiro N, Fraile M, González-Jubete A, González LO, Vizoso FJ. Mesenchymal (Stem) Stromal Cells Based as New Therapeutic Alternative in Inflammatory Bowel Disease: Basic Mechanisms, Experimental and Clinical Evidence, and Challenges. Int J Mol Sci 2022; 23:ijms23168905. [PMID: 36012170 PMCID: PMC9408403 DOI: 10.3390/ijms23168905] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/26/2022] [Accepted: 07/26/2022] [Indexed: 12/13/2022] Open
Abstract
Inflammatory bowel diseases (IBD) are an example of chronic diseases affecting 40% of the population, which involved tissue damage and an inflammatory process not satisfactorily controlled with current therapies. Data suggest that mesenchymal stem cells (MSC) may be a therapeutic option for these processes, and especially for IBD, due to their multifactorial approaches such as anti-inflammatory, anti-oxidative stress, anti-apoptotic, anti-fibrotic, regenerative, angiogenic, anti-tumor, or anti-microbial. However, MSC therapy is associated with important limitations as safety issues, handling difficulties for therapeutic purposes, and high economic cost. MSC-derived secretome products (conditioned medium or extracellular vesicles) are therefore a therapeutic option in IBD as they exhibit similar effects to their parent cells and avoid the issues of cell therapy. In this review, we proposed further studies to choose the ideal tissue source of MSC to treat IBD, the implementation of new standardized production strategies, quality controls and the integration of other technologies, such as hydrogels, which may improve the therapeutic effects of derived-MSC secretome products in IBD.
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Affiliation(s)
- Noemi Eiro
- Research Unit, Fundación Hospital de Jove, Av. de Eduardo Castro, 161, 33290 Gijón, Spain
- Correspondence: (N.E.); (F.J.V.); Tel.: +34-98-5320050 (ext. 84216) (N.E.); Fax: +34-98-531570 (N.E.)
| | - Maria Fraile
- Research Unit, Fundación Hospital de Jove, Av. de Eduardo Castro, 161, 33290 Gijón, Spain
| | | | - Luis O. González
- Department of Anatomical Pathology, Fundación Hospital de Jove, Av. de Eduardo Castro, 161, 33290 Gijón, Spain
| | - Francisco J. Vizoso
- Research Unit, Fundación Hospital de Jove, Av. de Eduardo Castro, 161, 33290 Gijón, Spain
- Department of Surgery, Fundación Hospital de Jove, Av. de Eduardo Castro, 161, 33290 Gijón, Spain
- Correspondence: (N.E.); (F.J.V.); Tel.: +34-98-5320050 (ext. 84216) (N.E.); Fax: +34-98-531570 (N.E.)
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13
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Tissue Niches Formed by Intestinal Mesenchymal Stromal Cells in Mucosal Homeostasis and Immunity. Int J Mol Sci 2022; 23:ijms23095181. [PMID: 35563571 PMCID: PMC9100044 DOI: 10.3390/ijms23095181] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 04/28/2022] [Accepted: 05/04/2022] [Indexed: 12/17/2022] Open
Abstract
The gastrointestinal tract is the largest mucosal surface in our body and accommodates the majority of the total lymphocyte population. Being continuously exposed to both harmless antigens and potentially threatening pathogens, the intestinal mucosa requires the integration of multiple signals for balancing immune responses. This integration is certainly supported by tissue-resident intestinal mesenchymal cells (IMCs), yet the molecular mechanisms whereby IMCs contribute to these events remain largely undefined. Recent studies using single-cell profiling technologies indicated a previously unappreciated heterogeneity of IMCs and provided further knowledge which will help to understand dynamic interactions between IMCs and hematopoietic cells of the intestinal mucosa. In this review, we focus on recent findings on the immunological functions of IMCs: On one hand, we discuss the steady-state interactions of IMCs with epithelial cells and hematopoietic cells. On the other hand, we summarize our current knowledge about the contribution of IMCs to the development of intestinal inflammatory conditions, such as infections, inflammatory bowel disease, and fibrosis. By providing a comprehensive list of cytokines and chemokines produced by IMCs under homeostatic and inflammatory conditions, we highlight the significant immunomodulatory and tissue niche forming capacities of IMCs.
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14
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Colorectal cancer in Crohn's disease evaluated with genes belonging to fibroblasts of the intestinal mucosa selected by NMF. Pathol Res Pract 2021; 229:153728. [PMID: 34953405 DOI: 10.1016/j.prp.2021.153728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/26/2021] [Accepted: 11/27/2021] [Indexed: 12/16/2022]
Abstract
Crohn's disease (CD) is a type of chronic, inflammatory bowel disease (IBD) which affects any part of the gastrointestinal tract. This study aims to understand the mechanism which activate mucosal fibroblasts in the microenvironment of the colon in CD and colorectal carcinomas and to extract fibroblasts phenotypes via a novel framework based on non-negative factorization of matrix (NMF). The results identify a fibroblast phenotype characterized by intense pro-inflammatory activity ensured by the presence of genes belonging to the APOBEC1 family, such as APOBEC3F and APOBEC3G. These results demonstrated that there is a difference in fibroblast response in producing a pro-tumorigenic effect in CD. The different activation mechanisms could represent useful biomarkers in controlling CD development without generalizing its significance as IBD.
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15
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Orr B, Sutton K, Christian S, Nash T, Niemann H, Hansen LL, McGrew MJ, Jensen SR, Vervelde L. Novel chicken two-dimensional intestinal model comprising all key epithelial cell types and a mesenchymal sub-layer. Vet Res 2021; 52:142. [PMID: 34819162 PMCID: PMC8611946 DOI: 10.1186/s13567-021-01010-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/22/2021] [Indexed: 12/12/2022] Open
Abstract
The intestinal epithelium plays a variety of roles including providing an effective physical barrier and innate immune protection against infection. Two-dimensional models of the intestinal epithelium, 2D enteroids, are a valuable resource to investigate intestinal cell biology and innate immune functions and are suitable for high throughput studies of paracellular transport and epithelial integrity. We have developed a chicken 2D enteroid model that recapitulates all major differentiated cell lineages, including enterocytes, Paneth cells, Goblet cells, enteroendocrine cells and leukocytes, and self-organises into an epithelial and mesenchymal sub-layer. Functional studies demonstrated the 2D enteroids formed a tight cell layer with minimal paracellular flux and a robust epithelial integrity, which was maintained or rescued following damage. The 2D enteroids were also able to demonstrate appropriate innate immune responses following exposure to bacterial endotoxins, from Salmonella enterica serotype Typhimurium and Bacillus subtilis. Frozen 2D enteroids cells when thawed were comparable to freshly isolated cells. The chicken 2D enteroids provide a useful ex vivo model to study intestinal cell biology and innate immune function, and have potential uses in screening of nutritional supplements, pharmaceuticals, and bioactive compounds.
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Affiliation(s)
- Brigid Orr
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, Midlothian, UK
| | - Kate Sutton
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, Midlothian, UK
| | - Sonja Christian
- Novozymes A/S, Animal Health and Nutrition, 2800, Lyngby, Denmark
| | - Tessa Nash
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, Midlothian, UK
| | - Helle Niemann
- Novozymes A/S, Animal Health and Nutrition, 2800, Lyngby, Denmark
| | - Lone Lind Hansen
- Novozymes A/S, Animal Health and Nutrition, 2800, Lyngby, Denmark
| | - Mike J McGrew
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, Midlothian, UK
| | | | - Lonneke Vervelde
- Division of Infection and Immunity, The Roslin Institute and Royal (Dick) School of Veterinary Studies, University of Edinburgh, Edinburgh, Midlothian, UK.
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16
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Extracellular Matrix Components as Diagnostic Tools in Inflammatory Bowel Disease. BIOLOGY 2021; 10:biology10101024. [PMID: 34681123 PMCID: PMC8533508 DOI: 10.3390/biology10101024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/14/2021] [Accepted: 09/30/2021] [Indexed: 12/20/2022]
Abstract
Simple Summary For decades, the extracellular matrix (ECM) has been defined as a structure component playing a rather neglected role in the human body. In recent years, research has shed light on the role of ECM within cellular processes, including proliferation, migration and differentiation, as well as in inflammation. In inflammation, ECM composition is constantly being remodeled and undergoes dynamic and rapid changes. Tracking these changes could serve as a novel diagnostic tool. Inflammatory bowel disease is accompanied by complications such as fibrosis, stenosis and fistulas. All of these structural complications involve excessive synthesis or degradation of ECM. With this review, we explored whether the analysis of ECM composition can be of support in diagnosing inflammatory bowel disease and whether changes within ECM can help to predict a complicated disease course early on. Abstract Work from the last years indicates that the extracellular matrix (ECM) plays a direct role in various cellular processes, including proliferation, migration and differentiation. Besides homeostatic processes, its regulatory function in inflammation becomes more and more evident. In inflammation, such as inflammatory bowel disease, the ECM composition is constantly remodeled, and this can result in a structuring of fistulizing disease course. Thus, tracking early ECM changes might bear the potential to predict the disease course. In this review, we provide an overview of relevant diagnostic methods, focusing on ECM changes.
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17
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Hidalgo‐Garcia L, Molina‐Tijeras JA, Huertas‐Peña F, Ruiz‐Malagón AJ, Diez‐Echave P, Vezza T, Rodríguez‐Sojo MJ, Morón R, Becerra‐Massare P, Rodríguez‐Nogales A, Gálvez J, Rodríguez‐Cabezas ME, Anderson P. Intestinal mesenchymal cells regulate immune responses and promote epithelial regeneration in vitro and in dextran sulfate sodium-induced experimental colitis in mice. Acta Physiol (Oxf) 2021; 233:e13699. [PMID: 34089568 DOI: 10.1111/apha.13699] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 05/28/2021] [Accepted: 06/01/2021] [Indexed: 12/25/2022]
Abstract
AIM Disruption of the intestinal mucosal tolerance, that is, the immunological unresponsiveness to innocuous food antigens and the commensal microbiota, in the colon is associated with several chronic diseases including inflammatory bowel disease (IBD). Understanding the mechanisms responsible for intestinal mucosal tolerance has potential translational value for its therapy and management. Human intestinal mesenchymal cells (iMCs) play important roles in colonic mucosal tolerance, but further studies on their tissue regenerative and immunomodulatory capacities are necessary in order to fully understand their function in health and disease. METHODS In this study, we have isolated and analysed the capacity of human iMCs to promote wound healing and modulate immune responses in vitro and in vivo, using the dextran sulfate sodium (DSS)-induced colitis model. RESULTS Cultured iMCs were CD45- CD73+ CD90+ CD105+ and accelerated the wound closure in a normal colon mucosa (NCM) 356 human epithelial cell wound healing assay. Furthermore, iMCs blocked the LPS-mediated induction of TNF-α in THP-1 macrophages and inhibited the proliferation of peripheral blood mononuclear cells, partly through the induction of indoleamine-2,3-dioxygenase. In DSS colitic mice, iMCs administration reduced the disease activity index and ameliorated intestinal tissue damage and permeability. Furthermore, iMCs reduced intestinal inflammation, evidenced by a decreased mRNA expression of pro-inflammatory cytokines, reduced IL-1β secretion by intestinal explants and inhibited colonic iNOS protein expression. CONCLUSIONS Our data show that human iMCs isolated from the noninflamed intestine possess tissue-regenerative and immunomodulatory capacities that could potentially be harnessed/restored in order to reduce IBD severity.
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Affiliation(s)
- Laura Hidalgo‐Garcia
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - José Alberto Molina‐Tijeras
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - Francisco Huertas‐Peña
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
- Servicio de Cirugía Hospital Universitario Virgen de las Nieves Granada Spain
| | - Antonio Jesús Ruiz‐Malagón
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - Patricia Diez‐Echave
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - Teresa Vezza
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - María Jesús Rodríguez‐Sojo
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - Rocío Morón
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
- Servicio Farmacia Hospitalaria Hospital Universitario Clínico San Cecilio Granada Spain
| | | | - Alba Rodríguez‐Nogales
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
- Servicio de Digestivo Hospital Universitario Virgen de las Nieves Granada Spain
| | - Julio Gálvez
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
- Centre for Biomedical Research in Liver and Digestive Diseases Network (CIBER‐EHD) University of Granada Granada Spain
| | - María Elena Rodríguez‐Cabezas
- Department of Pharmacology Center for Biomedical Research (CIBM) University of Granada Granada Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
| | - Per Anderson
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA) Granada Spain
- Servicio de Análisis Clínicos e Inmunología Hospital Universitario Virgen de las Nieves Granada Spain
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Davoli-Ferreira M, Thomson CA, McCoy KD. Microbiota and Microglia Interactions in ASD. Front Immunol 2021; 12:676255. [PMID: 34113350 PMCID: PMC8185464 DOI: 10.3389/fimmu.2021.676255] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Autism spectrum disorders (ASD) are serious, highly variable neurodevelopmental disorders, commonly characterized by the manifestation of specific behavioral abnormalities, such as stereotypic behaviors and deficits in social skills, including communication. Although the neurobiological basis for ASD has attracted attention in recent decades, the role of microglial cells, which are the main resident myeloid cell population in the brain, is still controversial and underexplored. Microglia play several fundamental roles in orchestrating brain development and homeostasis. As such, alterations in the intrinsic functions of these cells could be one of the driving forces responsible for the development of various neurodevelopmental disorders, including ASD. Microglia are highly sensitive to environmental cues. Amongst the environmental factors known to influence their intrinsic functions, the gut microbiota has emerged as a central player, controlling both microglial maturation and activation. Strikingly, there is now compelling data suggesting that the intestinal microbiota can play a causative role in driving the behavioural changes associated with ASD. Not only is intestinal dysbiosis commonly reported in ASD patients, but therapies targeting the microbiome can markedly alleviate behavioral symptoms. Here we explore the emerging mechanisms by which altered microglial functions could contribute to several major etiological factors of ASD. We then demonstrate how pre- and postnatal environmental stimuli can modulate microglial cell phenotype and function, underpinning the notion that reciprocal interactions between microglia and intestinal microbes could play a crucial role in ASD aetiology.
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Affiliation(s)
- Marcela Davoli-Ferreira
- Department of Physiology and Pharmacology, Snyder Institute of Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Carolyn A Thomson
- Department of Physiology and Pharmacology, Snyder Institute of Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Kathy D McCoy
- Department of Physiology and Pharmacology, Snyder Institute of Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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19
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Wang J, Lin S, Brown JM, van Wagoner D, Fiocchi C, Rieder F. Novel mechanisms and clinical trial endpoints in intestinal fibrosis. Immunol Rev 2021; 302:211-227. [PMID: 33993489 DOI: 10.1111/imr.12974] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/18/2021] [Accepted: 04/23/2021] [Indexed: 12/13/2022]
Abstract
The incidence of inflammatory bowel diseases (IBD) worldwide has resulted in a global public health challenge. Intestinal fibrosis leading to stricture formation and bowel obstruction is a frequent complication in Crohn's disease (CD), and the lack of anti-fibrotic therapies makes elucidation of fibrosis mechanisms a priority. Progress has shown that mesenchymal cells, cytokines, microbial products, and mesenteric adipocytes are jointly implicated in the pathogenesis of intestinal fibrosis. This recent information puts prevention or reversal of intestinal strictures within reach through innovative therapies validated by reliable clinical trial endpoints. Here, we review the role of immune and non-immune components of the pathogenesis of intestinal fibrosis, including new cell clusters, cytokine networks, host-microbiome interactions, creeping fat, and their translation for endpoint development in anti-fibrotic clinical trials.
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Affiliation(s)
- Jie Wang
- Henan Key Laboratory of Immunology and Targeted Drug, Xinxiang Medical University, Xinxiang, China.,Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Sinan Lin
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.,Department of Gastroenterology and Hepatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jonathan Mark Brown
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - David van Wagoner
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Claudio Fiocchi
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.,Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Florian Rieder
- Department of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA.,Department of Gastroenterology, Hepatology and Nutrition, Digestive Diseases and Surgery Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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20
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Geuking MB, Burkhard R. Microbial modulation of intestinal T helper cell responses and implications for disease and therapy. Mucosal Immunol 2020; 13:855-866. [PMID: 32792666 DOI: 10.1038/s41385-020-00335-w] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 07/20/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023]
Abstract
Induction of intestinal T helper cell subsets by commensal members of the intestinal microbiota is an important component of the many immune adaptations required to establish host-microbial homeostasis. Importantly, altered intestinal T helper cell profiles can have pathological consequences that are not limited to intestinal sites. Therefore, microbial-mediated modulation of the intestinal T helper cell profile could have strong therapeutic potentials. However, in order to develop microbial therapies that specifically induce the desired alterations in the intestinal T helper cell compartment one has to first gain a detailed understanding of how microbial composition and the metabolites derived or induced by the microbiota impact on intestinal T helper cell responses. Here we summarize the milestone findings in the field of microbiota-intestinal T helper cell crosstalk with a focus on the role of specific commensal bacteria and their metabolites. We discuss mechanistic mouse studies and are linking these to human studies where possible. Moreover, we highlight recent advances in the field of microbial CD4 T cell epitope mimicry in autoimmune diseases and the role of microbially-induced CD4 T cells in cancer immune checkpoint blockade therapy.
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Affiliation(s)
- Markus B Geuking
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
| | - Regula Burkhard
- Department of Microbiology, Immunology and Infectious Diseases, Snyder Institute for Chronic Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
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21
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Sagaradze GD, Basalova NA, Efimenko AY, Tkachuk VA. Mesenchymal Stromal Cells as Critical Contributors to Tissue Regeneration. Front Cell Dev Biol 2020; 8:576176. [PMID: 33102483 PMCID: PMC7546871 DOI: 10.3389/fcell.2020.576176] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 08/18/2020] [Indexed: 12/27/2022] Open
Abstract
Adult stem cells that are tightly regulated by the specific microenvironment, or the stem cell niche, function to maintain tissue homeostasis and regeneration after damage. This demands the existence of specific niche components that can preserve the stem cell pool in injured tissues and restore the microenvironment for their subsequent appropriate functioning. This role may belong to mesenchymal stromal cells (MSCs) due to their resistance to damage signals and potency to be specifically activated in response to tissue injury and promote regeneration by different mechanisms. Increased amount of data indicate that activated MSCs are able to produce factors such as extracellular matrix components, growth factors, extracellular vesicles and organelles, which transiently substitute the regulatory signals from missing niche cells and restrict the injury-induced responses of them. MSCs may recruit functional cells into a niche or differentiate into missing cell components to endow a niche with ability to regulate stem cell fates. They may also promote the dedifferentiation of committed cells to re-establish a pool of functional stem cells after injury. Accumulated evidence indicates the therapeutic promise of MSCs for stimulating tissue regeneration, but the benefits of administered MSCs demonstrated in many injury models are less than expected in clinical studies. This emphasizes the importance of considering the mechanisms of endogenous MSC functioning for the development of effective approaches to their pharmacological activation or mimicking their effects. To achieve this goal, we integrate the current ideas on the contribution of MSCs in restoring the stem cell niches after damage and thereby tissue regeneration.
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Affiliation(s)
- Georgy D Sagaradze
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russia
| | - Nataliya A Basalova
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Anastasia Yu Efimenko
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
| | - Vsevolod A Tkachuk
- Institute for Regenerative Medicine, Medical Research and Education Center, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Medicine, Lomonosov Moscow State University, Moscow, Russia
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