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Herath M, Speer AL. Bioengineering of Intestinal Grafts. Gastroenterol Clin North Am 2024; 53:461-472. [PMID: 39068007 PMCID: PMC11284275 DOI: 10.1016/j.gtc.2023.12.006] [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] [Indexed: 07/30/2024]
Abstract
Intestinal failure manifests as an impaired capacity of the intestine to sufficiently absorb vital nutrients and electrolytes essential for growth and well-being in pediatric and adult populations. Although parenteral nutrition remains the mainstay therapeutic approach, the pursuit of a definitive and curative strategy, such as regenerative medicine, is imperative. Substantial advancements in the field of engineered intestinal tissues present a promising avenue for addressing intestinal failure; nevertheless, extensive research is still necessary for effective translation from experimental benchwork to clinical bedside applications.
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Affiliation(s)
- Madushani Herath
- Program in Children's Regenerative Medicine, Department of Pediatric Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), 6431 Fannin Street, Suite 5.254, Houston, TX 77030, USA
| | - Allison L Speer
- Program in Children's Regenerative Medicine, Department of Pediatric Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth Houston), 6431 Fannin Street, Suite 5.254, Houston, TX 77030, USA.
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2
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Topczewska PM, Savvopoulou A, Cosovanu C, Klose CSN. Transcriptional profiling identifies IL-33-expressing intestinal stromal cells as a signaling hub poised to interact with enteric neurons. Front Cell Dev Biol 2024; 12:1420313. [PMID: 39149516 PMCID: PMC11325031 DOI: 10.3389/fcell.2024.1420313] [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: 04/19/2024] [Accepted: 07/18/2024] [Indexed: 08/17/2024] Open
Abstract
Recent advancements in mucosal immunology have unveiled a complex network of intercellular connections within diverse tissues, shedding light on the unique properties of different cell types. Central to this intricate network is the cytokine IL-33, which has gained significant attention for its critical role in various diseases, from allergy to cancer, triggering type 2 immune responses, among others. Recent research has challenged the prior assumptions attributing IL-33 expression to epithelial cells, highlighting stromal cells as the predominant source in adipose tissue and the lungs. However, in the complex landscape of the intestine, where IL-33 plays a crucial role in mediating immune surveillance and tolerance and is implicated in many gut-related disorders, its primary source, regulation, and main characteristics need more exploration. This study identifies stromal cells as the primary IL-33-expressing cell type in the small intestine. By investigating their transcriptome and intrinsic signaling pathways, we have uncovered a possible role of IL-33+ stromal cells in maintaining the stem cell niche and their potential crosstalk with neurons relevant to the regulation of axonogenesis. Importantly, our experiments have demonstrated that vasoactive intestinal peptide stimulation of a primary intestinal stromal cell culture significantly amplifies IL-33 expression on mRNA and protein level. Therefore, our study represents a significant leap forward in understanding the plethora of interactions IL-33+ intestinal stromal cells maintain in the intestine, paving the way for future investigations into stromal-neuro crosstalk in the gut. These findings hold great promise for developing targeted therapeutic strategies aimed at harnessing the potential of IL-33 across a spectrum of diseases.
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Affiliation(s)
- Patrycja M Topczewska
- Department of Microbiology, Infectious Diseases and Immunology, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Anna Savvopoulou
- Department of Microbiology, Infectious Diseases and Immunology, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Catalina Cosovanu
- Department of Microbiology, Infectious Diseases and Immunology, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Christoph S N Klose
- Department of Microbiology, Infectious Diseases and Immunology, Corporate Member of Freie Universität Berlin and Humboldt-Universität Zu Berlin, Charité-Universitätsmedizin Berlin, Berlin, Germany
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3
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Jerala M, Remic T, Hauptman N, Homan P, Zajšek N, Petitjean M, Chen L, Zidar N. Thrombospondin 2, matrix Gla protein and digital analysis identified distinct fibroblast populations in fibrostenosing Crohn's disease. Sci Rep 2024; 14:13810. [PMID: 38877292 PMCID: PMC11178913 DOI: 10.1038/s41598-024-64672-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 06/11/2024] [Indexed: 06/16/2024] Open
Abstract
Fibrosis is an important complication in inflammatory bowel diseases. Previous studies suggest an important role of matrix Gla protein (MGP) and thrombospondin 2 (THBS2) in fibrosis in various organs. Our aim was to analyse their expression together with regulatory miRNAs in submucosal and subserosal fibroblasts in ulcerative colitis (UC) and Crohn's disease (CD) using immunohistochemistry and qPCR. Digital pathology was used to compare collagen fibre characteristics of submucosal and subserosal fibrosis. Immunohistochemistry showed expression of MGP, but not THBS2 in submucosa in UC and CD. In the subserosa, there was strong staining for both proteins in CD but not in UC. qPCR showed significant upregulation of THBS2 and MGP genes in CD subserosa compared to the submucosa. Digital pathology analysis revealed higher proportion of larger and thicker fibres that were more tortuous and reticulated in subserosal fibrosis compared to submucosal fibrosis. These results suggest distinct fibroblast populations in fibrostenosing CD, and are further supported by image analysis showing significant differences in the morphology and architecture of collagen fibres in submucosal fibrosis in comparison to subserosal fibrosis. Our study is the first to describe differences in submucosal and subserosal fibroblast populations, contributing to understanding of the pathogenesis of fibrostenosis in CD.
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Affiliation(s)
- Miha Jerala
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Tinkara Remic
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Nina Hauptman
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Pia Homan
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | - Neža Zajšek
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia
| | | | - Li Chen
- PharmaNest Inc., Princeton, NJ, 08540, USA
| | - Nina Zidar
- Faculty of Medicine, Institute of Pathology, University of Ljubljana, Korytkova 2, 1000, Ljubljana, Slovenia.
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4
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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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5
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Kang J, Lee JH, Cha H, An J, Kwon J, Lee S, Kim S, Baykan MY, Kim SY, An D, Kwon AY, An HJ, Lee SH, Choi JK, Park JE. Systematic dissection of tumor-normal single-cell ecosystems across a thousand tumors of 30 cancer types. Nat Commun 2024; 15:4067. [PMID: 38744958 PMCID: PMC11094150 DOI: 10.1038/s41467-024-48310-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 04/26/2024] [Indexed: 05/16/2024] Open
Abstract
The complexity of the tumor microenvironment poses significant challenges in cancer therapy. Here, to comprehensively investigate the tumor-normal ecosystems, we perform an integrative analysis of 4.9 million single-cell transcriptomes from 1070 tumor and 493 normal samples in combination with pan-cancer 137 spatial transcriptomics, 8887 TCGA, and 1261 checkpoint inhibitor-treated bulk tumors. We define a myriad of cell states constituting the tumor-normal ecosystems and also identify hallmark gene signatures across different cell types and organs. Our atlas characterizes distinctions between inflammatory fibroblasts marked by AKR1C1 or WNT5A in terms of cellular interactions and spatial co-localization patterns. Co-occurrence analysis reveals interferon-enriched community states including tertiary lymphoid structure (TLS) components, which exhibit differential rewiring between tumor, adjacent normal, and healthy normal tissues. The favorable response of interferon-enriched community states to immunotherapy is validated using immunotherapy-treated cancers (n = 1261) including our lung cancer cohort (n = 497). Deconvolution of spatial transcriptomes discriminates TLS-enriched from non-enriched cell types among immunotherapy-favorable components. Our systematic dissection of tumor-normal ecosystems provides a deeper understanding of inter- and intra-tumoral heterogeneity.
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Affiliation(s)
- Junho Kang
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Jun Hyeong Lee
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Hongui Cha
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Jinhyeon An
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Joonha Kwon
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
- Division of Cancer Data Science, National Cancer Center, Bioinformatics Branch, Goyang, Republic of Korea
| | - Seongwoo Lee
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Seongryong Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Mert Yakup Baykan
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - So Yeon Kim
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Dohyeon An
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea
| | - Ah-Young Kwon
- Department of Pathology, CHA Bundang Medical Center, CHA University, Seongnam-si, Republic of Korea
| | - Hee Jung An
- Department of Pathology, CHA Bundang Medical Center, CHA University, Seongnam-si, Republic of Korea
| | - Se-Hoon Lee
- Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
- Department of Health Sciences and Technology, Samsung Advanced Institute of Health Science and Technology, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - Jung Kyoon Choi
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
- Penta Medix Co., Ltd., Seongnam-si, Gyeonggi-do, Republic of Korea.
| | - Jong-Eun Park
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
- Biomedical Research Center, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
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6
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Dong Y, Johnson BA, Ruan L, Zeineldin M, Bi T, Liu AZ, Raychaudhuri S, Chiu I, Zhu J, Smith B, Zhao N, Searson P, Watanabe S, Donowitz M, Larman TC, Li R. Disruption of epithelium integrity by inflammation-associated fibroblasts through prostaglandin signaling. SCIENCE ADVANCES 2024; 10:eadj7666. [PMID: 38569041 PMCID: PMC10990275 DOI: 10.1126/sciadv.adj7666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Accepted: 02/27/2024] [Indexed: 04/05/2024]
Abstract
Inflammation-associated fibroblasts (IAFs) are associated with progression and drug resistance of chronic inflammatory diseases such as inflammatory bowel disease (IBD), but their direct impact on epithelial cells is unknown. Here, we developed an in vitro model whereby human colon fibroblasts are induced by specific cytokines and recapitulate key features of IAFs in vivo. When cocultured with patient-derived colon organoids (colonoids), IAFs induced rapid colonoid expansion and barrier disruption due to swelling and rupture of individual epithelial cells. Colonoids cocultured with IAFs also show increased DNA damage, mitotic errors, and proliferation arrest. These IAF-induced epithelial defects are mediated by a paracrine pathway involving prostaglandin E2 and its receptor EP4, leading to protein kinase A -dependent activation of the cystic fibrosis transmembrane conductance regulator. EP4-specific chemical inhibitors effectively prevented IAF-induced colonoid swelling and restored normal proliferation and genome stability. These findings reveal a mechanism by which IAFs could promote and perpetuate IBD and suggest a therapeutic avenue to mitigate inflammation-associated epithelial injury.
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Affiliation(s)
- Yi Dong
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Blake A. Johnson
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Linhao Ruan
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Maged Zeineldin
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Tianhao Bi
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Albert Z. Liu
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Sumana Raychaudhuri
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Ian Chiu
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Jin Zhu
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, Singapore, Singapore
| | - Barbara Smith
- Microscope Facility, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Nan Zhao
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Peter Searson
- Institute for Nanobiotechnology, Johns Hopkins University, Baltimore, MD 21218, USA
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Shigeki Watanabe
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Mark Donowitz
- Department of Medicine, Division of Gastroenterology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Department of Physiology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Tatianna C. Larman
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
| | - Rong Li
- Department of Cell Biology, Johns Hopkins School of Medicine, Baltimore, MD 21205, USA
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore, Singapore, Singapore
- Department of Biological Sciences, National University of Singapore, Singapore, Singapore
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7
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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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8
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Barnett AM, Mullaney JA, McNabb WC, Roy NC. Culture media and format alter cellular composition and barrier integrity of porcine colonoid-derived monolayers. Tissue Barriers 2024; 12:2222632. [PMID: 37340938 DOI: 10.1080/21688370.2023.2222632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 06/04/2023] [Indexed: 06/22/2023] Open
Abstract
Intestinal organoid technology has revolutionized our approach to in vitro cell culture due in part to their three-dimensional structures being more like the native tissue from which they were derived with respect to cellular composition and architecture. For this reason, organoids are becoming the new gold standard for undertaking intestinal epithelial cell research. Unfortunately, their otherwise advantageous three-dimensional geometry prevents easy access to the apical epithelium, which is a major limitation when studying interactions between dietary or microbial components and host tissues. To overcome this problem, we developed porcine colonoid-derived monolayers cultured on both permeable Transwell inserts and tissue culture treated polystyrene plates. We found that seeding density and culture format altered the expression of genes encoding markers of specific cell types (stem cells, colonocytes, goblets, and enteroendocrine cells), and barrier maturation (tight junctions). Additionally, we found that changes to the formulation of the culture medium altered the cellular composition of colonoids and of monolayers derived from them, resulting in cultures with an increasingly differentiated phenotype that was similar to that of their tissue of origin.
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Affiliation(s)
- Alicia M Barnett
- AgResearch Ltd, Grasslands Research Centre, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Jane A Mullaney
- AgResearch Ltd, Grasslands Research Centre, Palmerston North, New Zealand
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Warren C McNabb
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Nicole C Roy
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Liggins Institute, The High-Value Nutrition National Science Challenge, Auckland, New Zealand
- Department of Nutrition, The University of Otago, Dunedin, New Zealand
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9
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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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10
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Choi J, Augenlicht LH. Intestinal stem cells: guardians of homeostasis in health and aging amid environmental challenges. Exp Mol Med 2024; 56:495-500. [PMID: 38424189 PMCID: PMC10985084 DOI: 10.1038/s12276-024-01179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 12/11/2023] [Indexed: 03/02/2024] Open
Abstract
The intestinal epithelium is the first line of defense and acts as an interface between the vast microbial world within the gastrointestinal tract and the body's internal milieu. The intestinal epithelium not only facilitates nutrient absorption but also plays a key role in defending against pathogens and regulating the immune system. Central to maintaining a healthy epithelium are intestinal stem cells (ISCs), which are essential for replenishing the intestinal epithelium throughout an individual's lifespan. Recent research has unveiled the intricate interplay between ISCs and their niche, which includes various cell types, extracellular components, and signaling molecules. In this review, we delve into the most recent advances in ISC research, with a focus on the roles of ISCs in maintaining mucosal homeostasis and how ISC functionality is influenced by the niche environment. In this review, we explored the regulatory mechanisms that govern ISC behavior, emphasizing the dynamic adaptability of the intestinal epithelium in the face of various challenges. Understanding the intricate regulation of ISCs and the impact of aging and environmental factors is crucial for advancing our knowledge and developing translational approaches. Future studies should investigate the interactive effects of different risk factors on intestinal function and develop strategies for improving the regenerative capacity of the gut.
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Affiliation(s)
- Jiahn Choi
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA.
| | - Leonard H Augenlicht
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
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11
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Biel C, Faber KN, Bank RA, Olinga P. Matrix metalloproteinases in intestinal fibrosis. J Crohns Colitis 2024; 18:462-478. [PMID: 37878770 PMCID: PMC10906956 DOI: 10.1093/ecco-jcc/jjad178] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 10/03/2023] [Accepted: 10/24/2023] [Indexed: 10/27/2023]
Abstract
Intestinal fibrosis is a common complication in patients with inflammatory bowel disease [IBD], in particular Crohn's disease [CD]. Unfortunately, at present intestinal fibrosis is not yet preventable, and cannot be treated by interventions other than surgical removal. Intestinal fibrosis is characterized by excessive accumulation of extracellular matrix [ECM], which is caused by activated fibroblasts and smooth muscle cells. Accumulation of ECM results from an imbalanced production and degradation of ECM. ECM degradation is mainly performed by matrix metalloproteinases [MMPs], enzymes that are counteracted by tissue inhibitors of MMPs [TIMPs]. In IBD patients, MMP activity [together with other protease activities] is increased. At the same time, CD patients have a generally lower MMP activity compared to ulcerative colitis patients, who usually do not develop intestinal strictures or fibrosis. The exact regulation and role[s] of these MMPs in fibrosis are far from understood. Here, we review the current literature about ECM remodelling by MMPs in intestinal fibrosis and their potential role as biomarkers for disease progression or druggable targets.
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Affiliation(s)
- Carin Biel
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, the Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University Medical Center Groningen, Groningen, The Netherlands
| | - Ruud A Bank
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, 9713 GZ Groningen, The Netherlands
| | - Peter Olinga
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, the Netherlands
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12
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Cameron O, Neves JF, Gentleman E. Listen to Your Gut: Key Concepts for Bioengineering Advanced Models of the Intestine. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2302165. [PMID: 38009508 PMCID: PMC10837392 DOI: 10.1002/advs.202302165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 10/12/2023] [Indexed: 11/29/2023]
Abstract
The intestine performs functions central to human health by breaking down food and absorbing nutrients while maintaining a selective barrier against the intestinal microbiome. Key to this barrier function are the combined efforts of lumen-lining specialized intestinal epithelial cells, and the supportive underlying immune cell-rich stromal tissue. The discovery that the intestinal epithelium can be reproduced in vitro as intestinal organoids introduced a new way to understand intestinal development, homeostasis, and disease. However, organoids reflect the intestinal epithelium in isolation whereas the underlying tissue also contains myriad cell types and impressive chemical and structural complexity. This review dissects the cellular and matrix components of the intestine and discusses strategies to replicate them in vitro using principles drawing from bottom-up biological self-organization and top-down bioengineering. It also covers the cellular, biochemical and biophysical features of the intestinal microenvironment and how these can be replicated in vitro by combining strategies from organoid biology with materials science. Particularly accessible chemistries that mimic the native extracellular matrix are discussed, and bioengineering approaches that aim to overcome limitations in modelling the intestine are critically evaluated. Finally, the review considers how further advances may extend the applications of intestinal models and their suitability for clinical therapies.
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Affiliation(s)
- Oliver Cameron
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonSE1 9RTUK
| | - Joana F. Neves
- Centre for Host‐Microbiome InteractionsKing's College LondonLondonSE1 9RTUK
| | - Eileen Gentleman
- Centre for Craniofacial and Regenerative BiologyKing's College LondonLondonSE1 9RTUK
- Department of Biomedical SciencesUniversity of LausanneLausanne1005Switzerland
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13
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Yang W, Yu T, Cong Y. Stromal Cell Regulation of Intestinal Inflammatory Fibrosis. Cell Mol Gastroenterol Hepatol 2024; 17:703-711. [PMID: 38246590 PMCID: PMC10958116 DOI: 10.1016/j.jcmgh.2024.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/09/2024] [Accepted: 01/09/2024] [Indexed: 01/23/2024]
Abstract
Intestinal inflammatory fibrosis is a severe consequence of inflammatory bowel diseases (IBDs). There is currently no cure for the treatment of intestinal fibrosis in IBD. Although inflammation is necessary for triggering fibrosis, the anti-inflammatory agents used to treat IBD are ineffective in preventing the progression of intestinal fibrosis and stricture formation once initiated, suggesting that inflammatory signals are not the sole drivers of fibrosis progression once it is established. Among multiple mechanisms involved in the initiation and progression of intestinal fibrosis in IBD, stromal cells play critical roles in mediating the process. In this review, we summarize recent progress on how stromal cells regulate intestinal fibrosis in IBD and how they are regulated by focusing on immune regulation and gut microbiota. We also outline the challenges moving forward in the field.
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Affiliation(s)
- Wenjing Yang
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Center for Human Immunobiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Tianming Yu
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Center for Human Immunobiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Yingzi Cong
- Division of Gastroenterology and Hepatology, Department of Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois; Center for Human Immunobiology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.
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14
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Qin X, Cardoso Rodriguez F, Sufi J, Vlckova P, Claus J, Tape CJ. An oncogenic phenoscape of colonic stem cell polarization. Cell 2023; 186:5554-5568.e18. [PMID: 38065080 DOI: 10.1016/j.cell.2023.11.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 09/14/2023] [Accepted: 11/02/2023] [Indexed: 12/18/2023]
Abstract
Cancer cells are regulated by oncogenic mutations and microenvironmental signals, yet these processes are often studied separately. To functionally map how cell-intrinsic and cell-extrinsic cues co-regulate cell fate, we performed a systematic single-cell analysis of 1,107 colonic organoid cultures regulated by (1) colorectal cancer (CRC) oncogenic mutations, (2) microenvironmental fibroblasts and macrophages, (3) stromal ligands, and (4) signaling inhibitors. Multiplexed single-cell analysis revealed a stepwise epithelial differentiation phenoscape dictated by combinations of oncogenes and stromal ligands, spanning from fibroblast-induced Clusterin (CLU)+ revival colonic stem cells (revCSCs) to oncogene-driven LRIG1+ hyper-proliferative CSCs (proCSCs). The transition from revCSCs to proCSCs is regulated by decreasing WNT3A and TGF-β-driven YAP signaling and increasing KRASG12D or stromal EGF/Epiregulin-activated MAPK/PI3K flux. We find that APC loss and KRASG12D collaboratively limit access to revCSCs and disrupt stromal-epithelial communication-trapping epithelia in the proCSC fate. These results reveal that oncogenic mutations dominate homeostatic differentiation by obstructing cell-extrinsic regulation of cell-fate plasticity.
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Affiliation(s)
- Xiao Qin
- Cell Communication Lab, Department of Oncology, University College London Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Ferran Cardoso Rodriguez
- Cell Communication Lab, Department of Oncology, University College London Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Jahangir Sufi
- Cell Communication Lab, Department of Oncology, University College London Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Petra Vlckova
- Cell Communication Lab, Department of Oncology, University College London Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK
| | - Jeroen Claus
- Phospho Biomedical Animation, The Greenhouse Studio 6, London N17 9QU, UK
| | - Christopher J Tape
- Cell Communication Lab, Department of Oncology, University College London Cancer Institute, 72 Huntley Street, London WC1E 6DD, UK.
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15
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Manieri E, Tie G, Malagola E, Seruggia D, Madha S, Maglieri A, Huang K, Fujiwara Y, Zhang K, Orkin SH, Wang TC, He R, McCarthy N, Shivdasani RA. Role of PDGFRA + cells and a CD55 + PDGFRA Lo fraction in the gastric mesenchymal niche. Nat Commun 2023; 14:7978. [PMID: 38042929 PMCID: PMC10693581 DOI: 10.1038/s41467-023-43619-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 11/15/2023] [Indexed: 12/04/2023] Open
Abstract
PDGFRA-expressing mesenchyme supports intestinal stem cells. Stomach epithelia have related niche dependencies, but their enabling mesenchymal cell populations are unknown, in part because previous studies pooled the gastric antrum and corpus. Our high-resolution imaging, transcriptional profiling, and organoid assays identify regional subpopulations and supportive capacities of purified mouse corpus and antral PDGFRA+ cells. Sub-epithelial PDGFRAHi myofibroblasts are principal sources of BMP ligands and two molecularly distinct pools distribute asymmetrically along antral glands but together fail to support epithelial growth in vitro. In contrast, PDGFRALo CD55+ cells strategically positioned beneath gastric glands promote epithelial expansion in the absence of other cells or factors. This population encompasses a small fraction expressing the BMP antagonist Grem1. Although Grem1+ cell ablation in vivo impairs intestinal stem cells, gastric stem cells are spared, implying that CD55+ cell activity in epithelial self-renewal derives from other subpopulations. Our findings shed light on spatial, molecular, and functional organization of gastric mesenchyme and the spectrum of signaling sources for epithelial support.
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Affiliation(s)
- Elisa Manieri
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Guodong Tie
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Ermanno Malagola
- Division of Digestive and Liver Diseases, Department of Medicine and Irving Cancer Research Center, Columbia University Medical Center, New York, NY, 10032, USA
| | - Davide Seruggia
- Department of Hematology, Boston Children's Hospital, Boston, MA, 02115, USA
- St. Anna Children's Cancer Research Institute, Vienna, Austria
- CeMM Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Shariq Madha
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Adrianna Maglieri
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Kun Huang
- Molecular Imaging Core and Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Yuko Fujiwara
- Department of Hematology, Boston Children's Hospital, Boston, MA, 02115, USA
- Howard Hughes Medical Institute, Boston, MA, 02115, USA
| | - Kevin Zhang
- Department of Hematology, Boston Children's Hospital, Boston, MA, 02115, USA
| | - Stuart H Orkin
- Department of Hematology, Boston Children's Hospital, Boston, MA, 02115, USA
- Howard Hughes Medical Institute, Boston, MA, 02115, USA
- Harvard Stem Cell Institute, Cambridge, MA, 02138, USA
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Department of Medicine and Irving Cancer Research Center, Columbia University Medical Center, New York, NY, 10032, USA
| | - Ruiyang He
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
| | - Neil McCarthy
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Ramesh A Shivdasani
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA, 02215, USA.
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA.
- Harvard Stem Cell Institute, Cambridge, MA, 02138, USA.
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16
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Brügger MD, Basler K. The diverse nature of intestinal fibroblasts in development, homeostasis, and disease. Trends Cell Biol 2023; 33:834-849. [PMID: 37080817 DOI: 10.1016/j.tcb.2023.03.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/28/2023] [Accepted: 03/13/2023] [Indexed: 04/22/2023]
Abstract
Only in recent years have we begun to appreciate the involvement of fibroblasts in intestinal development, tissue homeostasis, and disease. These insights followed the advent of single-cell transcriptomics that allowed researchers to explore the heterogeneity of intestinal fibroblasts in unprecedented detail. Since researchers often defined cell types and their associated function based on the biological process they studied, there are a plethora of partially overlapping markers for different intestinal fibroblast populations. This ambiguity complicates putting different research findings into context. Here, we provide a census on the function and identity of intestinal fibroblasts in mouse and human. We propose a simplified framework consisting of three colonic and four small intestinal fibroblast populations to aid navigating the diversity of intestinal fibroblasts.
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Affiliation(s)
- Michael David Brügger
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
| | - Konrad Basler
- Department of Molecular Life Sciences, University of Zürich, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
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17
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Torras N, Zabalo J, Abril E, Carré A, García-Díaz M, Martínez E. A bioprinted 3D gut model with crypt-villus structures to mimic the intestinal epithelial-stromal microenvironment. BIOMATERIALS ADVANCES 2023; 153:213534. [PMID: 37356284 DOI: 10.1016/j.bioadv.2023.213534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 06/13/2023] [Accepted: 06/18/2023] [Indexed: 06/27/2023]
Abstract
The intestine is a complex tissue with a characteristic three-dimensional (3D) crypt-villus architecture, which plays a key role in the intestinal function. This function is also regulated by the intestinal stroma that actively supports the intestinal epithelium, maintaining the homeostasis of the tissue. Efforts to account for the 3D complex structure of the intestinal tissue have been focused mainly in mimicking the epithelial barrier, while solutions to include the stromal compartment are scarce and unpractical to be used in routine experiments. Here we demonstrate that by employing an optimized bioink formulation and the suitable printing parameters it is possible to produce fibroblast-laden crypt-villus structures by means of digital light projection stereolithography (DLP-SLA). This process provides excellent cell viability, accurate spatial resolution, and high printing throughput, resulting in a robust biofabrication approach that yields functional gut mucosa tissues compatible with conventional testing techniques.
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Affiliation(s)
- Núria Torras
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain.
| | - Jon Zabalo
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Eduardo Abril
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - Albane Carré
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain
| | - María García-Díaz
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain.
| | - Elena Martínez
- Biomimetic Systems for Cell Engineering Laboratory, Institute for Bioengineering of Catalonia (IBEC), The Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 15-21, 08028 Barcelona, Spain; Centro de Investigación Biomédica en Red (CIBER), Av. Monforte de Lemos 3-5, Pabellón 11, Planta 0, 28029 Madrid, Spain; Department of Electronics and Biomedical Engineering, University of Barcelona (UB), Martí i Franquès 1, 08028 Barcelona, Spain.
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18
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Dong Y, Johnson BA, Ruan L, Zeineldin M, Liu AZ, Raychaudhuri S, Chiu I, Zhu J, Smith B, Zhao N, Searson P, Watanabe S, Donowitz M, Larman TC, Li R. Disruption of Epithelium Integrity by Inflammation-Associated Fibroblasts through Prostaglandin Signaling: IAFs disrupt colon epithelium via PGE2-EP4. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.09.28.560060. [PMID: 37808771 PMCID: PMC10557697 DOI: 10.1101/2023.09.28.560060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/10/2023]
Abstract
Inflammation-associated fibroblasts (IAFs) are associated with the progression and drug resistance of chronic inflammatory diseases such as inflammatory bowel disease (IBD), but their direct impact on epithelial function and architecture is unknown. In this study, we developed an in vitro model whereby human colon fibroblasts are induced to become IAFs by specific cytokines and recapitulate key features of IAFs in vivo. When co-cultured with patient-derived colon organoids (colonoids), IAFs induced rapid colonoid swelling and barrier disruption due to swelling and rupture of individual epithelial cells. Epithelial cells co-cultured with IAFs also exhibit increased DNA damage, mitotic errors, and proliferation arrest. These IAF-induced epithelial defects are mediated through a paracrine pathway involving prostaglandin E2 (PGE2) and the PGE2 receptor EP4, leading to PKA-dependent activation of the CFTR chloride channel. Importantly, EP4-specific chemical inhibitors effectively prevented colonoid swelling and restored normal proliferation and genome stability of IAF-exposed epithelial cells. These findings reveal a mechanism by which IAFs could promote and perpetuate IBD and suggest a potential treatment to mitigate inflammation-associated epithelial injury.
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Affiliation(s)
- Yi Dong
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Blake A. Johnson
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Linhao Ruan
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Maged Zeineldin
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Albert Z. Liu
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Sumana Raychaudhuri
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Ian Chiu
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Jin Zhu
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore; Singapore
| | - Barbara Smith
- Microscope Facility, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Nan Zhao
- Institute for Nanobiotechnology, Johns Hopkins University; Baltimore, Maryland, 21218, U.S.A
| | - Peter Searson
- Institute for Nanobiotechnology, Johns Hopkins University; Baltimore, Maryland, 21218, U.S.A
- Department of Materials Science and Engineering, Johns Hopkins University; Baltimore, MD, 21218, U.S.A
| | - Shigeki Watanabe
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Mark Donowitz
- Department of Medicine, Division of Gastroenterology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
- Department of Physiology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Tatianna C. Larman
- Department of Pathology, Division of GI/Liver Pathology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
| | - Rong Li
- Department of Cell Biology, Johns Hopkins School of Medicine; Baltimore, MD, 21205, U.S.A
- Mechanobiology Institute and Department of Biological Sciences, National University of Singapore; Singapore
- Department of Biological Sciences, National University of Singapore; Singapore
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19
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Jensen BAH, Heyndrickx M, Jonkers D, Mackie A, Millet S, Naghibi M, Pærregaard SI, Pot B, Saulnier D, Sina C, Sterkman LGW, Van den Abbeele P, Venlet NV, Zoetendal EG, Ouwehand AC. Small intestine vs. colon ecology and physiology: Why it matters in probiotic administration. Cell Rep Med 2023; 4:101190. [PMID: 37683651 PMCID: PMC10518632 DOI: 10.1016/j.xcrm.2023.101190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 07/12/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023]
Abstract
Research on gut microbiota has generally focused on fecal samples, representing luminal content of the large intestine. However, nutrient uptake is restricted to the small intestine. Abundant immune cell populations at this anatomical site combined with diminished mucus secretion and looser junctions (partly to allow for more efficient fluid and nutrient absorption) also results in intimate host-microbe interactions despite more rapid transit. It is thus crucial to dissect key differences in both ecology and physiology between small and large intestine to better leverage the immense potential of human gut microbiota imprinting, including probiotic engraftment at biological sensible niches. Here, we provide a detailed review unfolding how the physiological and anatomical differences between the small and large intestine affect gut microbiota composition, function, and plasticity. This information is key to understanding how gut microbiota manipulation, including probiotic administration, may strain-dependently transform host-microbe interactions at defined locations.
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Affiliation(s)
| | - Marc Heyndrickx
- Flanders Research Institute of Agriculture, Fisheries and Food, Belgium & Ghent University, Department Pathobiology, Pharmacology and Zoological Medicine, B-9090 Melle, 9820 Merelbeke, Belgium
| | - Daisy Jonkers
- Division Gastroenterology-Hepatology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht 6229 ER, the Netherlands
| | - Alan Mackie
- School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Sam Millet
- Flanders Research Institute of Agriculture, Fisheries and Food, 9090 Melle, Belgium
| | | | - Simone Isling Pærregaard
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen N, Denmark
| | - Bruno Pot
- Yakult Europe BV, 1332 Almere, the Netherlands
| | | | - Christian Sina
- Institute of Nutritional Medicine, University Medical Center of Schleswig-Holstein & University of Lübeck, 23538 Lübeck, Germany
| | | | | | - Naomi Vita Venlet
- International Life Science Institute, European Branch, Brussels, Belgium.
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, 6708 WE Wageningen, the Netherlands
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20
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Caulk AW, Chatterjee M, Barr SJ, Contini EM. Mechanobiological considerations in colorectal stapling: Implications for technology development. Surg Open Sci 2023; 13:54-65. [PMID: 37159635 PMCID: PMC10163679 DOI: 10.1016/j.sopen.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 04/07/2023] [Accepted: 04/08/2023] [Indexed: 05/11/2023] Open
Abstract
Technological advancements in minimally invasive surgery have led to significant improvements in patient outcomes. One such technology is surgical stapling, which has evolved into a key component of many operating rooms by facilitating ease and efficacy in resection and repair of diseased or otherwise compromised tissue. Despite such advancements, adverse post-operative outcomes such as anastomotic leak remain a persistent problem in surgical stapling and its correlates (i.e., hand-sewing), most notably in low colorectal or coloanal procedures. Many factors may drive anastomotic leaks, including tissue perfusion, microbiome composition, and patient factors such as pre-existing disease. Surgical intervention induces complex acute and chronic changes to the mechanical environment of the tissue; however, roles of mechanical forces in post-operative healing remain poorly characterized. It is well known that cells sense and respond to their local mechanical environment and that dysfunction of this "mechanosensing" phenomenon contributes to a myriad of diseases. Mechanosensing has been investigated in wound healing contexts such as dermal incisional and excisional wounds and development of pressure ulcers; however, reports investigating roles of mechanical forces in adverse post-operative gastrointestinal wound healing are lacking. To understand this relationship well, it is critical to understand: 1) the intraoperative material responses of tissue to surgical intervention, and 2) the post-operative mechanobiological response of the tissue to surgically imposed forces. In this review, we summarize the state of the field in each of these contexts while highlighting areas of opportunity for discovery and innovation which can positively impact patient outcomes in minimally invasive surgery.
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Affiliation(s)
- Alexander W. Caulk
- Corresponding author at: 60 Middletown Ave., North Haven, CT 06473, USA.
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21
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Adler M, Moriel N, Goeva A, Avraham-Davidi I, Mages S, Adams TS, Kaminski N, Macosko EZ, Regev A, Medzhitov R, Nitzan M. Emergence of division of labor in tissues through cell interactions and spatial cues. Cell Rep 2023; 42:112412. [PMID: 37086403 PMCID: PMC10242439 DOI: 10.1016/j.celrep.2023.112412] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/26/2023] [Accepted: 04/03/2023] [Indexed: 04/23/2023] Open
Abstract
Most cell types in multicellular organisms can perform multiple functions. However, not all functions can be optimally performed simultaneously by the same cells. Functions incompatible at the level of individual cells can be performed at the cell population level, where cells divide labor and specialize in different functions. Division of labor can arise due to instruction by tissue environment or through self-organization. Here, we develop a computational framework to investigate the contribution of these mechanisms to division of labor within a cell-type population. By optimizing collective cellular task performance under trade-offs, we find that distinguishable expression patterns can emerge from cell-cell interactions versus instructive signals. We propose a method to construct ligand-receptor networks between specialist cells and use it to infer division-of-labor mechanisms from single-cell RNA sequencing (RNA-seq) and spatial transcriptomics data of stromal, epithelial, and immune cells. Our framework can be used to characterize the complexity of cell interactions within tissues.
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Affiliation(s)
- Miri Adler
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA; Tananbaum Center for Theoretical and Analytical Human Biology, Yale University School of Medicine, New Haven, CT, USA
| | - Noa Moriel
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Aleksandrina Goeva
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Inbal Avraham-Davidi
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA
| | - Simon Mages
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA; Gene Center and Department of Biochemistry, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Taylor S Adams
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Naftali Kaminski
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale University School of Medicine, New Haven, CT, USA
| | - Evan Z Macosko
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA; Massachusetts General Hospital, Department of Psychiatry, Boston, MA, USA
| | - Aviv Regev
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA, USA; Department of Biology, Massachusetts Institute of Technology, Cambridge, MA, USA.
| | - Ruslan Medzhitov
- Tananbaum Center for Theoretical and Analytical Human Biology, Yale University School of Medicine, New Haven, CT, USA; Howard Hughes Medical Institute, Department of Immunobiology, Yale University School of Medicine, New Haven, CT, USA.
| | - Mor Nitzan
- School of Computer Science and Engineering, The Hebrew University of Jerusalem, Jerusalem, Israel; Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel; Faculty of Medicine, The Hebrew University of Jerusalem, Jerusalem, Israel.
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22
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Jarmakiewicz-Czaja S, Sokal A, Ferenc K, Motyka E, Helma K, Filip R. The Role of Genetic and Epigenetic Regulation in Intestinal Fibrosis in Inflammatory Bowel Disease: A Descending Process or a Programmed Consequence? Genes (Basel) 2023; 14:1167. [PMID: 37372347 DOI: 10.3390/genes14061167] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 05/24/2023] [Accepted: 05/26/2023] [Indexed: 06/29/2023] Open
Abstract
Inflammatory bowel diseases (IBDs) are a group of chronic diseases characterized by recurring periods of exacerbation and remission. Fibrosis of the intestine is one of the most common complications of IBD. Based on current analyses, it is evident that genetic factors and mechanisms, as well as epigenetic factors, play a role in the induction and progression of intestinal fibrosis in IBD. Key genetic factors and mechanisms that appear to be significant include NOD2, TGF-β, TLRs, Il23R, and ATG16L1. Deoxyribonucleic acid (DNA) methylation, histone modification, and ribonucleic acid (RNA) interference are the primary epigenetic mechanisms. Genetic and epigenetic mechanisms, which seem to be important in the pathophysiology and progression of IBD, may potentially be used in targeted therapy in the future. Therefore, the aim of this study was to gather and discuss selected mechanisms and genetic factors, as well as epigenetic factors.
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Affiliation(s)
| | - Aneta Sokal
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
| | - Katarzyna Ferenc
- Institute of Medicine, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
| | - Elżbieta Motyka
- Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
| | - Kacper Helma
- Institute of Health Sciences, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
| | - Rafał Filip
- Institute of Medicine, Medical College of Rzeszow University, 35-959 Rzeszow, Poland
- Department of Gastroenterology with IBD, Clinical Hospital No. 2 im. Św. Jadwigi Królowej, 35-301 Rzeszow, Poland
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23
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Pærregaard SI, Wulff L, Schussek S, Niss K, Mörbe U, Jendholm J, Wendland K, Andrusaite AT, Brulois KF, Nibbs RJB, Sitnik K, Mowat AM, Butcher EC, Brunak S, Agace WW. The small and large intestine contain related mesenchymal subsets that derive from embryonic Gli1 + precursors. Nat Commun 2023; 14:2307. [PMID: 37085516 PMCID: PMC10121680 DOI: 10.1038/s41467-023-37952-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 04/06/2023] [Indexed: 04/23/2023] Open
Abstract
The intestinal lamina propria contains a diverse network of fibroblasts that provide key support functions to cells within their local environment. Despite this, our understanding of the diversity, location and ontogeny of fibroblasts within and along the length of the intestine remains incomplete. Here we show that the small and large intestinal lamina propria contain similar fibroblast subsets that locate in specific anatomical niches. Nevertheless, we find that the transcriptional profile of similar fibroblast subsets differs markedly between the small intestine and colon suggesting region specific functions. We perform in vivo transplantation and lineage-tracing experiments to demonstrate that adult intestinal fibroblast subsets, smooth muscle cells and pericytes derive from Gli1-expressing precursors present in embryonic day 12.5 intestine. Trajectory analysis of single cell RNA-seq datasets of E12.5 and adult mesenchymal cells suggest that adult smooth muscle cells and fibroblasts derive from distinct embryonic intermediates and that adult fibroblast subsets develop in a linear trajectory from CD81+ fibroblasts. Finally, we provide evidence that colonic subepithelial PDGFRαhi fibroblasts comprise several functionally distinct populations that originate from an Fgfr2-expressing fibroblast intermediate. Our results provide insights into intestinal stromal cell diversity, location, function, and ontogeny, with implications for intestinal development and homeostasis.
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Affiliation(s)
- Simone Isling Pærregaard
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | - Line Wulff
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | - Sophie Schussek
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | - Kristoffer Niss
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - Urs Mörbe
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | - Johan Jendholm
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | | | - Anna T Andrusaite
- Institute of Infection, immunity and Inflammation, University of Glasgow, Glasgow, Scotland, UK
| | - Kevin F Brulois
- Laboratory of Immunology and Vascular Biology, Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA
| | - Robert J B Nibbs
- Institute of Infection, immunity and Inflammation, University of Glasgow, Glasgow, Scotland, UK
| | - Katarzyna Sitnik
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark
| | - Allan McI Mowat
- Institute of Infection, immunity and Inflammation, University of Glasgow, Glasgow, Scotland, UK
| | - Eugene C Butcher
- Laboratory of Immunology and Vascular Biology, Department of Pathology, School of Medicine, Stanford University, Stanford, CA, USA
- The Center for Molecular Biology and Medicine, Veterans Affairs Palo Alto Health Care System and the Palo Alto Veterans Institute for Research (PAVIR), Palo Alto, CA, USA
| | - Søren Brunak
- Novo Nordisk Foundation Center for Protein Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, 2200, Denmark
| | - William W Agace
- Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs, Lyngby, Denmark.
- Immunology Section, Lund University, Lund, 221 84, Sweden.
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24
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McCarthy N, Tie G, Madha S, He R, Kraiczy J, Maglieri A, Shivdasani RA. Smooth muscle contributes to the development and function of a layered intestinal stem cell niche. Dev Cell 2023; 58:550-564.e6. [PMID: 36924771 PMCID: PMC10089980 DOI: 10.1016/j.devcel.2023.02.012] [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: 06/17/2022] [Revised: 12/05/2022] [Accepted: 02/20/2023] [Indexed: 03/17/2023]
Abstract
Wnt and Rspondin (RSPO) signaling drives proliferation, and bone morphogenetic protein inhibitors (BMPi) impede differentiation, of intestinal stem cells (ISCs). Here, we identify the mouse ISC niche as a complex, multi-layered structure that encompasses distinct mesenchymal and smooth muscle populations. In young and adult mice, diverse sub-cryptal cells provide redundant ISC-supportive factors; few of these are restricted to single cell types. Niche functions refine during postnatal crypt morphogenesis, in part to oppose the dense aggregation of differentiation-promoting BMP+ sub-epithelial myofibroblasts at crypt-villus junctions. Muscularis mucosae, a specialized muscle layer, first appears during this period and supplements neighboring RSPO and BMPi sources. Components of this developing niche are conserved in human fetuses. The in vivo ablation of mouse postnatal smooth muscle increases BMP signaling activity, potently limiting a pre-weaning burst of crypt fission. Thus, distinct and progressively specialized mesenchymal cells together create the milieu that is required to propagate crypts during rapid organ growth and to sustain adult ISCs.
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Affiliation(s)
- Neil McCarthy
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA.
| | - Guodong Tie
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Shariq Madha
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Ruiyang He
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Judith Kraiczy
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA
| | - Adrianna Maglieri
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Ramesh A Shivdasani
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Medicine, Harvard Medical School, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02139, USA.
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25
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Seguel M, Budischak SA, Jolles AE, Ezenwa VO. Helminth-associated changes in host immune phenotype connect top-down and bottom-up interactions during co-infection. Funct Ecol 2023; 37:860-872. [PMID: 37214767 PMCID: PMC10195069 DOI: 10.1111/1365-2435.14237] [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: 06/19/2022] [Accepted: 11/01/2022] [Indexed: 11/26/2022]
Abstract
1. Within-host parasite interactions can be mediated by the host and changes in host phenotypes often serve as indicators of the presence or intensity of parasite interactions. 2. Parasites like helminths induce a range of physiological, morphological, and immunological changes in hosts that can drive bottom-up (resource-mediated) or top-down (immune-mediated) interactions with co-infecting parasites. Although top-down and bottom-up interactions are typically studied in isolation, the diverse phenotypic changes induced by parasite infection may serve as a useful tool for understanding if, and when, these processes act in concert. 3. Using an anthelmintic treatment study of African buffalo (Syncerus caffer), we tracked changes in host immunological and morphological phenotypes during helminth-coccidia co-infection to investigate their role in driving independent and combinatorial bottom-up and top-down parasite interactions. We also examined repercussions for host fitness. 4. Clearance of a blood-sucking helminth, Haemonchus, from the host gastrointestinal tract induced a systemic Th2 immune phenotype, while clearance of a tissue-feeding helminth, Cooperia, induced a systemic Th1 phenotype. Furthermore, the Haemonchus-associated systemic Th2 immune phenotype drove simultaneous top-down and bottom-up effects that increased coccidia shedding by changing the immunological and morphological landscapes of the intestine. 5. Higher coccidia shedding was associated with lower host body condition, a lower chance of pregnancy, and older age at first pregnancy, suggesting that coccidia infection imposed significant condition and reproductive costs on the host. 6. Our findings suggest that top-down and bottom-up interactions may commonly co-occur and that tracking key host phenotypes that change in response to infection can help uncover complex pathways by which parasites interact.
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Affiliation(s)
- Mauricio Seguel
- Department of Pathobiology, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada
| | - Sarah A. Budischak
- W.M. Keck Science Department, Claremont McKenna, Pitzer, and Scripps Colleges, Claremont, USA
| | - Anna E. Jolles
- Department of Biomedical Sciences and Department of Integrative Biology, Oregon State University, Corvallis, OR, USA
| | - Vanessa O. Ezenwa
- Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA
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26
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Danan CH, Katada K, Parham LR, Hamilton KE. Spatial transcriptomics add a new dimension to our understanding of the gut. Am J Physiol Gastrointest Liver Physiol 2023; 324:G91-G98. [PMID: 36472345 PMCID: PMC9870576 DOI: 10.1152/ajpgi.00191.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/29/2022] [Accepted: 11/30/2022] [Indexed: 01/19/2023]
Abstract
The profound complexity of the intestinal mucosa demands a spatial approach to the study of gut transcriptomics. Although single-cell RNA sequencing has revolutionized our ability to survey the diverse cell types of the intestine, knowledge of cell type alone cannot fully describe the cells that make up the intestinal mucosa. During homeostasis and disease, dramatic gradients of oxygen, nutrients, extracellular matrix proteins, morphogens, and microbiota collectively dictate intestinal cell state, and only spatial techniques can articulate differences in cellular transcriptomes at this level. Spatial transcriptomic techniques assign transcriptomic data to precise regions in a tissue of interest. In recent years, these protocols have become increasingly accessible, and their application in the intestinal mucosa has exploded in popularity. In the gut, spatial transcriptomics typically involve the application of tissue sections to spatially barcoded RNA sequencing or laser capture microdissection followed by RNA sequencing. In combination with single-cell RNA sequencing, these spatial sequencing approaches allow for the construction of spatial transcriptional maps at pseudosingle-cell resolution. In this review, we describe the spatial transcriptomic technologies recently applied in the gut and the previously unattainable discoveries that they have produced.
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Affiliation(s)
- Charles H Danan
- Medical Scientist Training Program, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Kay Katada
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Louis R Parham
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
| | - Kathryn E Hamilton
- Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Children's Hospital of Philadelphia, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania
- Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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27
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Li S, Lu R, Shu L, Chen Y, Zhao J, Dai J, Huang Q, Li X, Meng W, Long F, Li Y, Fan C, Zhou Z, Mo X. An integrated map of fibroblastic populations in human colon mucosa and cancer tissues. Commun Biol 2022; 5:1326. [PMID: 36463319 PMCID: PMC9719516 DOI: 10.1038/s42003-022-04298-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 11/24/2022] [Indexed: 12/05/2022] Open
Abstract
Fibroblasts and myofibroblasts are major mesenchymal cells in the lamina propria of colon mucosa and in colon cancer tissues. Detailed insight into the highly specific populations of fibroblasts and myofibroblasts is required to understand the integrity and homeostasis of human colon mucosa and colon cancer. Based on gene expression profiles of single cells, we identified fibroblast populations that produce extracellular matrix components, Wnt ligand- and BMP-secreting fibroblasts, chemokine- and chemokine ligand-generating fibroblasts, highly activated fibroblasts, immune-modulating fibroblasts, epithelial cell-modulating myofibroblasts, stimuli-responsive myofibroblasts, proliferating myofibroblasts, fibroblast-like myofibroblasts, matrix producing myofibroblasts, and contractile myofibroblasts in human colon mucosa. In colon cancer tissue, the compositions of fibroblasts and myofibroblasts were highly altered, as were the expressing patterns of genes including BMPs, Wnt ligands, chemokines, chemokine ligands, growth factors and extracellular matrix components in fibroblasts and myofibroblasts. Our work expands the working atlas of fibroblasts and myofibroblasts and provides a framework for interrogating the complexity of stromal cells in human healthy colon mucosa and colon cancer tissues.
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Affiliation(s)
- Siying Li
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ran Lu
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China ,grid.13291.380000 0001 0807 1581Department of Public Health Laboratory Sciences, West China Fourth Hospital, West China School of Public Health, Sichuan University, Chengdu, China ,grid.13291.380000 0001 0807 1581Department of Urology and Pelvic Surgery, West China Fourth Hospital, West China School of Public Health, Sichuan University, Chengdu, China
| | - Linjuan Shu
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yulin Chen
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Zhao
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Junlong Dai
- grid.13291.380000 0001 0807 1581Department of Liver Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Qiaorong Huang
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xue Li
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Wentong Meng
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Feiwu Long
- grid.13291.380000 0001 0807 1581Department of Gastrointestinal, Bariatric and Metabolic Surgery, Research Center for Nutrition, Metabolism & Food Safety, West China-PUMC C.C. Chen Institute of Health, West China Fourth Hospital, West China School of Public Health, Sichuan University, Chengdu, China
| | - Yuan Li
- grid.13291.380000 0001 0807 1581Institute of Digestive Surgery and Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Chuanwen Fan
- grid.13291.380000 0001 0807 1581Department of Gastrointestinal, Bariatric and Metabolic Surgery, Research Center for Nutrition, Metabolism & Food Safety, West China-PUMC C.C. Chen Institute of Health, West China Fourth Hospital, West China School of Public Health, Sichuan University, Chengdu, China ,grid.13291.380000 0001 0807 1581Institute of Digestive Surgery and Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Zongguang Zhou
- grid.13291.380000 0001 0807 1581Institute of Digestive Surgery and Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Xianming Mo
- grid.13291.380000 0001 0807 1581Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
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28
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Jenkins BH, Buckingham JF, Hanley CJ, Thomas GJ. Targeting cancer-associated fibroblasts: Challenges, opportunities and future directions. Pharmacol Ther 2022; 240:108231. [PMID: 35718294 DOI: 10.1016/j.pharmthera.2022.108231] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Revised: 06/08/2022] [Accepted: 06/13/2022] [Indexed: 02/06/2023]
Abstract
Cancer-associated fibroblasts (CAFs) are a common cell in the tumour microenvironment with diverse tumour-promoting functions. Their presence in tumours is commonly associated with poor prognosis making them attractive therapeutic targets, particularly in the context of immunotherapy where CAFs have been shown to promote resistance to checkpoint blockade. Previous attempts to inhibit CAFs clinically have not been successful, however, in part due to a lack of understanding of CAF heterogeneity and function, with some fibroblast populations potentially being tumour suppressive. Recent single-cell transcriptomic studies have advanced our understanding of fibroblast phenotypes in normal tissues and cancers, allowing for a more precise characterisation of CAF subsets and providing opportunities to develop new therapies. Here we review recent advances in the field, focusing on the evolving area of therapeutic CAF targeting.
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Affiliation(s)
- Benjamin H Jenkins
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, UK
| | | | | | - Gareth J Thomas
- School of Cancer Sciences, Faculty of Medicine, University of Southampton, UK.
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29
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Sun H, Tan J, Chen H, Wu N, Su B. Immune niches orchestrated by intestinal mesenchymal stromal cells lining the crypt-villus. Front Immunol 2022; 13:1057932. [PMID: 36405734 PMCID: PMC9669707 DOI: 10.3389/fimmu.2022.1057932] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/20/2022] [Indexed: 07/22/2023] Open
Abstract
The mammalian intestine is an organ that can be spatially defined by two axes: longitudinal and vertical. Such anatomical structure ensures the maintenance of a relatively immuno-quiescent and proliferation-promoting crypt for intestinal stem cell differentiation while actively warding off the invading intestinal microbes at the villus tip during digestion and nutrient absorption. Such behavior is achieved by the fine coordination among intestinal epithelial cells, intestinal mesenchymal stromal cells and tissue-resident immune cells like myeloid cells and lymphocytes. Among these cell types resided in the colon, intestinal mesenchymal stromal cells are considered to be the essential link between epithelium, vasculature, neuronal system, and hematopoietic compartment. Recent advancement of single cell and spatial transcriptomics has enabled us to characterize the spatial and functional heterogeneity of intestinal mesenchymal stromal cells. These studies reveal distinctive intestinal mesenchymal stromal cells localized in different regions of the intestine with diverse functions including but not limited to providing cytokines and growth factors essential for different immune cells and epithelial cells which predict niche formation for immune function from the villus tip to the crypt bottom. In this review, we aim to provide an overall view of the heterogeneity of intestinal mesenchymal stromal cells, the spatial distribution of these cells along with their interaction with immune cells and the potential regulatory cytokine profile of these cell types. Summarization of such information may enrich our current understanding of the immuno-regulatory functions of the newly identified mesenchymal stromal cell subsets beyond their epithelial regulatory function.
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Affiliation(s)
- Hongxiang Sun
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, and the Ministry of Education Key Laboratory of Cell Death and Differentiation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Gastroenterology, Center for Immune-Related Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine–Yale Institute for Immune Metabolism, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jianmei Tan
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, and the Ministry of Education Key Laboratory of Cell Death and Differentiation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Gastroenterology, Center for Immune-Related Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine–Yale Institute for Immune Metabolism, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongqian Chen
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, and the Ministry of Education Key Laboratory of Cell Death and Differentiation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Gastroenterology, Center for Immune-Related Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine–Yale Institute for Immune Metabolism, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ningbo Wu
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, and the Ministry of Education Key Laboratory of Cell Death and Differentiation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Gastroenterology, Center for Immune-Related Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine–Yale Institute for Immune Metabolism, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Su
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, and the Ministry of Education Key Laboratory of Cell Death and Differentiation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Department of Gastroenterology, Center for Immune-Related Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Jiao Tong University School of Medicine–Yale Institute for Immune Metabolism, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Key Laboratory of Molecular Radiation Oncology of Hunan Province, Xiangya Hospital, Central South University, Changsha, China
- Academy of Integrative Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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30
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Choo J, Glisovic N, Matic Vignjevic D. Gut homeostasis at a glance. J Cell Sci 2022; 135:281168. [DOI: 10.1242/jcs.260248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
ABSTRACT
The intestine, a rapidly self-renewing organ, is part of the gastrointestinal system. Its major roles are to absorb food-derived nutrients and water, process waste and act as a barrier against potentially harmful substances. Here, we will give a brief overview of the primary functions of the intestine, its structure and the luminal gradients along its length. We will discuss the dynamics of the intestinal epithelium, its turnover, and the maintenance of homeostasis. Finally, we will focus on the characteristics and functions of intestinal mesenchymal and immune cells. In this Cell Science at a Glance article and the accompanying poster, we aim to present the most recent information about gut cell biology and physiology, providing a resource for further exploration.
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Affiliation(s)
- Jieun Choo
- Institut Curie, PSL Research University, CNRS UMR 144 , F-75005 Paris , France
| | - Neda Glisovic
- Institut Curie, PSL Research University, CNRS UMR 144 , F-75005 Paris , France
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31
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Paul C, Tang R, Longobardi C, Lattanzio R, Eguether T, Turali H, Bremond J, Maurizy C, Gabola M, Poupeau S, Turtoi A, Denicolai E, Cufaro MC, Svrcek M, Seksik P, Castronovo V, Delvenne P, de Laurenzi V, Da Costa Q, Bertucci F, Lemmers B, Pieragostino D, Mamessier E, Janke C, Pinet V, Hahne M. Loss of primary cilia promotes inflammation and carcinogenesis. EMBO Rep 2022; 23:e55687. [PMID: 36281991 PMCID: PMC9724674 DOI: 10.15252/embr.202255687] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/09/2022] [Accepted: 10/04/2022] [Indexed: 11/05/2022] Open
Abstract
Primary cilia (PC) are important signaling hubs, and we here explored their role in colonic pathology. In the colon, PC are mostly present on fibroblasts, and exposure of mice to either chemically induced colitis-associated colon carcinogenesis (CAC) or dextran sodium sulfate (DSS)-induced acute colitis decreases PC numbers. We generated conditional knockout mice with reduced numbers of PC on colonic fibroblasts. These mice show increased susceptibility to CAC, as well as DSS-induced colitis. Secretome and immunohistochemical analyses of DSS-treated mice display an elevated production of the proinflammatory cytokine IL-6 in PC-deficient colons. An inflammatory environment diminishes PC presence in primary fibroblast cultures, which is triggered by IL-6 as identified by RNA-seq analysis together with blocking experiments. These findings suggest an activation loop between IL-6 production and PC loss. An analysis of PC presence on biopsies of patients with ulcerative colitis or colorectal cancer (CRC) reveals decreased numbers of PC on colonic fibroblasts in pathological compared with surrounding normal tissue. Taken together, we provide evidence that a decrease in colonic PC numbers promotes colitis and CRC.
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Affiliation(s)
- Conception Paul
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Ruizhi Tang
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Ciro Longobardi
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance,Center for Experimental and Molecular Medicine, Cancer Center Amsterdam, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands,Oncode Institute, Amsterdam UMCUniversity of AmsterdamAmsterdamThe Netherlands
| | - Rossano Lattanzio
- Department of Innovative Technologies in Medicine & Dentistry, Center for Advanced Studies and Technology (CAST)‘G. d'Annunzio’ University of Chieti–PescaraChietiItaly
| | - Thibaut Eguether
- Centre de Recherche Saint AntoineSorbonne Université, INSERM, APHPParisFrance
| | - Hulya Turali
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Julie Bremond
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Chloé Maurizy
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Monica Gabola
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Sophie Poupeau
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Andrei Turtoi
- Tumor Microenvironment and Resistance to Treatment Laboratory, Institut de Recherche en Cancérologie de MontpellierMontpellierFrance
| | - Emilie Denicolai
- Cancer Research Center of Marseille (CRCM), Laboratory of Predictive Oncology, Inserm U1068 ‐ CNRS UMR7258 – University of Aix‐Marseille UM105 ‐ Paoli Calmettes Institute (IPC)Label “Ligue contre le cancer”MarseilleFrance
| | - Maria Concetta Cufaro
- Department of Innovative Technologies in Medicine & Dentistry, Center for Advanced Studies and Technology (CAST)‘G. d'Annunzio’ University of Chieti–PescaraChietiItaly
| | - Magali Svrcek
- Department of Pathology, AP‐HP, Hôpital Saint‐AntoineSorbonne UniversitéParisFrance
| | - Philippe Seksik
- Centre de Recherche Saint AntoineSorbonne Université, INSERM, APHPParisFrance
| | - Vincent Castronovo
- Metastasis Research Laboratory, GIGA CancerUniversity of LiègeLiègeBelgium
| | - Philippe Delvenne
- Cancer Research Center of Marseille (CRCM), Laboratory of Predictive Oncology, Inserm U1068 ‐ CNRS UMR7258 – University of Aix‐Marseille UM105 ‐ Paoli Calmettes Institute (IPC)Label “Ligue contre le cancer”MarseilleFrance,Department of Pathology, University Hospital (CHU)University of LiègeLiègeBelgium
| | - Vincenzo de Laurenzi
- Department of Innovative Technologies in Medicine & Dentistry, Center for Advanced Studies and Technology (CAST)‘G. d'Annunzio’ University of Chieti–PescaraChietiItaly
| | - Quentin Da Costa
- Cancer Research Center of Marseille (CRCM), Laboratory of Predictive Oncology, Inserm U1068 ‐ CNRS UMR7258 – University of Aix‐Marseille UM105 ‐ Paoli Calmettes Institute (IPC)Label “Ligue contre le cancer”MarseilleFrance
| | - François Bertucci
- Cancer Research Center of Marseille (CRCM), Laboratory of Predictive Oncology, Inserm U1068 ‐ CNRS UMR7258 – University of Aix‐Marseille UM105 ‐ Paoli Calmettes Institute (IPC)Label “Ligue contre le cancer”MarseilleFrance
| | - Bénédicte Lemmers
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Damiana Pieragostino
- Department of Innovative Technologies in Medicine & Dentistry, Center for Advanced Studies and Technology (CAST)‘G. d'Annunzio’ University of Chieti–PescaraChietiItaly
| | - Emilie Mamessier
- Cancer Research Center of Marseille (CRCM), Laboratory of Predictive Oncology, Inserm U1068 ‐ CNRS UMR7258 – University of Aix‐Marseille UM105 ‐ Paoli Calmettes Institute (IPC)Label “Ligue contre le cancer”MarseilleFrance
| | - Carsten Janke
- Institut Curie, Paris Sciences et Lettres (PSL) Research University, Centre National de la Recherche Scientifique (CNRS) Unité Mixte de Recherche (UMR) 3348Label “Equipe FRM”OrsayFrance,Université Paris Sud, Université Paris‐Saclay, CNRS UMR 3348OrsayFrance
| | - Valérie Pinet
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
| | - Michael Hahne
- Institut de Génétique Moléculaire de Montpellier, Univ Montpellier, CNRS, Label “Equipe FRM”MontpellierFrance
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The Probiotic Strains Bifidοbacterium lactis, Lactobacillus acidophilus, Lactiplantibacillus plantarum and Saccharomyces boulardii Regulate Wound Healing and Chemokine Responses in Human Intestinal Subepithelial Myofibroblasts. Pharmaceuticals (Basel) 2022; 15:ph15101293. [PMID: 36297405 PMCID: PMC9611312 DOI: 10.3390/ph15101293] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/07/2022] [Accepted: 10/18/2022] [Indexed: 11/17/2022] Open
Abstract
Bifidobacterium lactis, Lactobacillus acidophilus, Lactiplantibacillus plantarum and Saccharomyces boulardii are common probiotic supplements. Colonic subepithelial myofibroblasts (cSEMFs) are actively involved in mucosal wound healing and inflammation. cSEMFs, isolated from healthy individuals, were stimulated with 102 or 104 cfu/mL of these probiotic strains alone and in combination, and their effect on chemokine and wound healing factor expression was assessed by qRT-PCR, ELISA and Sircol Assay, and on cSEMFs migration, by Wound Healing Assay. These strains remained viable and altered cSEMFs’ inflammatory and wound healing behavior, depending on the strain and concentration. cSEMFs treated with a combination of the four probiotics had a moderate, but statistically significant, increase in the mRNA and/or protein expression of chemokines CXCL1, CXCL2, CXCL4, CXCL8, CXCL10, CCL2 and CCL5, and healing factors, collagen type I and III, fibronectin and tissue factor. In contrast, when each strain was administered alone, different effects were observed, with greater increase or decrease in chemokine and healing factor expression, which was balanced by the mixture. Overall, this study highlights that the use of multiple probiotic strains can potentially alert the gut mucosal immune system and promote wound healing, having a better effect on mucosal immunity than the use of single probiotics.
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33
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Bell TJ, Nagel DJ, Woeller CF, Kottmann RM. Ogerin mediated inhibition of TGF-β(1) induced myofibroblast differentiation is potentiated by acidic pH. PLoS One 2022; 17:e0271608. [PMID: 35901086 PMCID: PMC9333254 DOI: 10.1371/journal.pone.0271608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 07/01/2022] [Indexed: 01/28/2023] Open
Abstract
Transforming growth factor beta (TGF-β) induced myofibroblast differentiation is central to the pathological scarring observed in Idiopathic Pulmonary Fibrosis (IPF) and other fibrotic diseases. Our lab has recently identified expression of GPR68 (Ovarian Cancer Gene Receptor 1, OGR1), a pH sensing G-protein coupled receptor, as a negative regulator of TGF-β induced profibrotic effects in primary human lung fibroblasts (PHLFs). We therefore hypothesized that small molecule activators of GPR68 would inhibit myofibroblast differentiation. Ogerin is a positive allosteric modulator (PAM) of GPR68, inducing a leftward shift of the dose response curve to proton induced signaling. Using PHLFs derived from patients with both non-fibrotic and IPF diagnoses, we show that Ogerin inhibits, and partially reverses TGF-β induced myofibroblast differentiation in a dose dependent manner. This occurs at the transcriptional level without inhibition of canonical TGF-β induced SMAD signaling. Ogerin induces PKA dependent CREB phosphorylation, a marker of Gαs pathway activation. The ability of Ogerin to inhibit both basal and TGF-β induced collagen gene transcription, and induction of Gαs signaling is enhanced at an acidic pH (pH 6.8). Similar findings were also found using fibroblasts derived from dermal, intestinal, and orbital tissue. The biological role of GPR68 in different tissues, cell types, and disease states is an evolving and emerging field. This work adds to the understanding of Gαs coupled GPCRs in fibrotic lung disease, the ability to harness the pH sensing properties of GPR68, and conserved mechanisms of fibrosis across different organ systems.
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Affiliation(s)
- Tyler J. Bell
- Department of Environmental Medicine Toxicology Training Program, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States of America
| | - David J. Nagel
- Department of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States of America
| | - Collynn F. Woeller
- Department of Ophthalmology, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States of America
| | - R. Mathew Kottmann
- Department of Pulmonary and Critical Care Medicine, University of Rochester School of Medicine and Dentistry, Rochester, NY, United States of America
- * E-mail:
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34
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Bernier-Latmani J, Mauri C, Marcone R, Renevey F, Durot S, He L, Vanlandewijck M, Maclachlan C, Davanture S, Zamboni N, Knott GW, Luther SA, Betsholtz C, Delorenzi M, Brisken C, Petrova TV. ADAMTS18 + villus tip telocytes maintain a polarized VEGFA signaling domain and fenestrations in nutrient-absorbing intestinal blood vessels. Nat Commun 2022; 13:3983. [PMID: 35810168 PMCID: PMC9271081 DOI: 10.1038/s41467-022-31571-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 06/21/2022] [Indexed: 12/17/2022] Open
Abstract
The small intestinal villus tip is the first point of contact for lumen-derived substances including nutrients and microbial products. Electron microscopy studies from the early 1970s uncovered unusual spatial organization of small intestinal villus tip blood vessels: their exterior, epithelial-facing side is fenestrated, while the side facing the villus stroma is non-fenestrated, covered by pericytes and harbors endothelial nuclei. Such organization optimizes the absorption process, however the molecular mechanisms maintaining this highly specialized structure remain unclear. Here we report that perivascular LGR5+ villus tip telocytes (VTTs) are necessary for maintenance of villus tip endothelial cell polarization and fenestration by sequestering VEGFA signaling. Mechanistically, unique VTT expression of the protease ADAMTS18 is necessary for VEGFA signaling sequestration through limiting fibronectin accumulation. Therefore, we propose a model in which LGR5+ ADAMTS18+ telocytes are necessary to maintain a “just-right” level and location of VEGFA signaling in intestinal villus blood vasculature to ensure on one hand the presence of sufficient endothelial fenestrae, while avoiding excessive leakiness of the vessels and destabilization of villus tip epithelial structures. The molecular mechanisms ensuring the specialized structure of small intestinal villus tip blood vessels are incompletely understood. Here the authors show that ADAMTS18+ telocytes maintain a “just-right” level and location of VEGFA signaling on intestinal villus blood vessels, thereby ensuring the presence of endothelial fenestrae for nutrient absorption, while avoiding excessive leakiness and destabilization of villus tip epithelial structures.
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Affiliation(s)
- Jeremiah Bernier-Latmani
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne and University of Lausanne, Lausanne, Switzerland.
| | - Cristina Mauri
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne and University of Lausanne, Lausanne, Switzerland
| | - Rachel Marcone
- Bioinformatics Core Facility, SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - François Renevey
- Department of Immunobiology, University of Lausanne, Lausanne, Switzerland
| | - Stephan Durot
- Institute of Molecular Systems Biology ETH, Zurich, Switzerland
| | - Liqun He
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden
| | - Michael Vanlandewijck
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.,Department of Medicine-Huddinge, Karolinska Institutet, Huddinge, Sweden
| | - Catherine Maclachlan
- Bio Electron Microscopy Laboratory, School of Life Sciences, EPFL, Lausanne, Switzerland
| | - Suzel Davanture
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne and University of Lausanne, Lausanne, Switzerland
| | - Nicola Zamboni
- Institute of Molecular Systems Biology ETH, Zurich, Switzerland
| | - Graham W Knott
- Bio Electron Microscopy Laboratory, School of Life Sciences, EPFL, Lausanne, Switzerland
| | - Sanjiv A Luther
- Department of Immunobiology, University of Lausanne, Lausanne, Switzerland
| | - Christer Betsholtz
- Department of Immunology, Genetics and Pathology, Rudbeck Laboratory, Uppsala University, Uppsala, Sweden.,Department of Medicine-Huddinge, Karolinska Institutet, Huddinge, Sweden
| | - Mauro Delorenzi
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne and University of Lausanne, Lausanne, Switzerland.,Bioinformatics Core Facility, SIB Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Cathrin Brisken
- Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, EPFL, Lausanne, Switzerland
| | - Tatiana V Petrova
- Department of Oncology, Ludwig Institute for Cancer Research Lausanne and University of Lausanne, Lausanne, Switzerland. .,Swiss Institute for Experimental Cancer Research (ISREC), School of Life Sciences, EPFL, Lausanne, Switzerland.
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35
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Lymphatics act as a signaling hub to regulate intestinal stem cell activity. Cell Stem Cell 2022; 29:1067-1082.e18. [PMID: 35728595 PMCID: PMC9271639 DOI: 10.1016/j.stem.2022.05.007] [Citation(s) in RCA: 55] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 03/30/2022] [Accepted: 05/10/2022] [Indexed: 11/22/2022]
Abstract
Barrier epithelia depend upon resident stem cells for homeostasis, defense, and repair. Epithelial stem cells of small and large intestines (ISCs) respond to their local microenvironments (niches) to fulfill a continuous demand for tissue turnover. The complexity of these niches and underlying communication pathways are not fully known. Here, we report a lymphatic network at the intestinal crypt base that intimately associates with ISCs. Employing in vivo loss of function and lymphatic:organoid cocultures, we show that crypt lymphatics maintain ISCs and inhibit their precocious differentiation. Pairing single-cell and spatial transcriptomics, we apply BayesPrism to deconvolve expression within spatial features and develop SpaceFold to robustly map the niche at high resolution, exposing lymphatics as a central signaling hub for the crypt in general and ISCs in particular. We identify WNT-signaling factors (WNT2, R-SPONDIN-3) and a hitherto unappreciated extracellular matrix protein, REELIN, as crypt lymphatic signals that directly govern the regenerative potential of ISCs.
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36
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Fan LM, Zhang YQ, Chen YP, Chen LL, Xu WH, Nan LH, Xu W, Lu B, Wang Y, Chu KD, Zhang JP. Cryptotanshinone ameliorates dextran sulfate sodium-induced murine acute and chronic ulcerative colitis via suppressing STAT3 activation and Th17 cell differentiation. Int Immunopharmacol 2022; 108:108894. [DOI: 10.1016/j.intimp.2022.108894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 11/25/2022]
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37
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Tullie L, Jones BC, De Coppi P, Li VSW. Building gut from scratch - progress and update of intestinal tissue engineering. Nat Rev Gastroenterol Hepatol 2022; 19:417-431. [PMID: 35241800 DOI: 10.1038/s41575-022-00586-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/31/2022] [Indexed: 12/18/2022]
Abstract
Short bowel syndrome (SBS), a condition defined by insufficient absorptive intestinal epithelium, is a rare disease, with an estimated prevalence up to 0.4 in 10,000 people. However, it has substantial morbidity and mortality for affected patients. The mainstay of treatment in SBS is supportive, in the form of intravenous parenteral nutrition, with the aim of achieving intestinal autonomy. The lack of a definitive curative therapy has led to attempts to harness innate developmental and regenerative mechanisms to engineer neo-intestine as an alternative approach to addressing this unmet clinical need. Exciting advances have been made in the field of intestinal tissue engineering (ITE) over the past decade, making a review in this field timely. In this Review, we discuss the latest advances in the components required to engineer intestinal grafts and summarize the progress of ITE. We also explore some key factors to consider and challenges to overcome when transitioning tissue-engineered intestine towards clinical translation, and provide the future outlook of ITE in therapeutic applications and beyond.
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Affiliation(s)
- Lucinda Tullie
- Stem Cell and Cancer Biology Laboratory, The Francis Crick Institute, London, UK.,Stem Cell and Regenerative Medicine Section, DBC, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Brendan C Jones
- Stem Cell and Regenerative Medicine Section, DBC, Great Ormond Street Institute of Child Health, University College London, London, UK
| | - Paolo De Coppi
- Stem Cell and Regenerative Medicine Section, DBC, Great Ormond Street Institute of Child Health, University College London, London, UK. .,Specialist Neonatal and Paediatric Surgery Unit, Great Ormond Street Hospital, London, UK.
| | - Vivian S W Li
- Stem Cell and Cancer Biology Laboratory, The Francis Crick Institute, London, UK.
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38
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Ha SE, Jin B, Jorgensen BG, Zogg H, Wei L, Singh R, Park C, Kurahashi M, Kim S, Baek G, Poudrier SM, Lee MY, Sanders KM, Ro S. Transcriptome profiling of subepithelial PDGFRα cells in colonic mucosa reveals several cell-selective markers. PLoS One 2022; 17:e0261743. [PMID: 35560163 PMCID: PMC9106222 DOI: 10.1371/journal.pone.0261743] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 12/08/2021] [Indexed: 11/19/2022] Open
Abstract
Subepithelial platelet-derived growth factor receptor alpha (PDGFRα)+ cells found in the colonic mucosal tissue come in close contact with epithelial cells, immune cells, neurons, capillaries, and lymphatic networks. Mucosal subepithelial PDGFRα+ cells (MuPαC) are important regulators in various intestinal diseases including fibrosis and inflammation. However, the transcriptome of MuPαC has not yet been elucidated. Using Pdgfra-eGFP mice and flow cytometry, we isolated colonic MuPαC and obtained their transcriptome data. In analyzing the transcriptome, we identified three novel, and selectively expressed, markers (Adamdec1, Fin1, and Col6a4) found in MuPαC. In addition, we identified a unique set of MuPαC-enriched genetic signatures including groups of growth factors, transcription factors, gap junction proteins, extracellular proteins, receptors, cytokines, protein kinases, phosphatases, and peptidases. These selective groups of genetic signatures are linked to the unique cellular identity and function of MuPαC. Furthermore, we have added this MuPαC transcriptome data to our Smooth Muscle Genome Browser that contains the transcriptome data of jejunal and colonic smooth muscle cells (SMC), interstitial cells of Cajal (ICC), and smooth muscle resident PDGFRα+ cells: (https://med.unr.edu/physio/transcriptome). This online resource provides a comprehensive reference of all currently known genetic transcripts expressed in primary MuPαC in the colon along with smooth muscle resident PDGFRα cells, SMC, and ICC in the murine colon and jejunum.
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Affiliation(s)
- Se Eun Ha
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Byungchang Jin
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Brian G. Jorgensen
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Hannah Zogg
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Lai Wei
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Rajan Singh
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Chanjae Park
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Masaaki Kurahashi
- Department of Internal Medicine, Division of Gastroenterology and Hepatology, University of Lowa, Lowa City, Lowa, United States of America
| | - Sei Kim
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Gain Baek
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Sandra M. Poudrier
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Moon Young Lee
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
- Department of Physiology, Wonkwang Digestive Disease Research Institute and Institute of Wonkwang Medical Science, School of Medicine, Wonkwang University, Iksan, Chonbuk, Korea
| | - Kenton M. Sanders
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
| | - Seungil Ro
- Department of Physiology and Cell Biology, University of Nevada School of Medicine, Reno, Nevada, United States of America
- * E-mail:
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39
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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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40
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Pergolizzi S, Alesci A, Centofanti A, Aragona M, Pallio S, Magaudda L, Cutroneo G, Lauriano ER. Role of Serotonin in the Maintenance of Inflammatory State in Crohn’s Disease. Biomedicines 2022; 10:biomedicines10040765. [PMID: 35453516 PMCID: PMC9030789 DOI: 10.3390/biomedicines10040765] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/22/2022] [Accepted: 03/23/2022] [Indexed: 02/05/2023] Open
Abstract
Crohn’s disease (CD) is a chronic intestinal inflammation considered to be a major entity of inflammatory bowel diseases (IBDs), affecting different segments of the whole gastrointestinal tract. Peripheral serotonin (5-HT), a bioactive amine predominantly produced by gut enterochromaffin cells (ECs), is crucial in gastrointestinal functions, including motility, sensitivity, secretion, and the inflammatory response. These actions are mediated by a large family of serotonin receptors and specialized serotonin transporter (SERT) located on a variety of cell types in the gut. Several studies indicate that intestinal 5-HT signaling is altered in patients with inflammatory bowel disease. Paraformaldehyde-fixed intestinal tissues, obtained from fifteen patients with Crohn’s disease were analyzed by immunostaining for serotonin, Langerin/CD207, and alpha-Smooth Muscle Actin (α-SMA). As controls, unaffected (normal) intestinal specimens of seven individuals were investigated. This study aimed to show the expression of serotonin in dendritic cells (DCs) and myofibroblast which have been characterized with Langerin/CD207 and α-SMA, respectively; furthermore, for the first time, we have found the presence of serotonin in goblet cells. Our results show the correlation between different types of intestinal cells in the maintenance of the inflammatory state in CD linked to the recall of myofibroblasts.
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Affiliation(s)
- Simona Pergolizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
- Correspondence: (S.P.); (A.A.); (A.C.)
| | - Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
- Correspondence: (S.P.); (A.A.); (A.C.)
| | - Antonio Centofanti
- Department of Biomedical and Dental Sciences and Morphofunctional Images, University of Messina, 98125 Messina, Italy; (L.M.); (G.C.)
- Correspondence: (S.P.); (A.A.); (A.C.)
| | - Marialuisa Aragona
- Department of Veterinary Sciences, University of Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy;
| | - Socrate Pallio
- Department of Clinical and Experimental Medicine, University of Messina, 98147 Messina, Italy;
| | - Ludovico Magaudda
- Department of Biomedical and Dental Sciences and Morphofunctional Images, University of Messina, 98125 Messina, Italy; (L.M.); (G.C.)
| | - Giuseppina Cutroneo
- Department of Biomedical and Dental Sciences and Morphofunctional Images, University of Messina, 98125 Messina, Italy; (L.M.); (G.C.)
| | - Eugenia Rita Lauriano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98166 Messina, Italy;
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41
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3D in vitro morphogenesis of human intestinal epithelium in a gut-on-a-chip or a hybrid chip with a cell culture insert. Nat Protoc 2022; 17:910-939. [PMID: 35110737 PMCID: PMC9675318 DOI: 10.1038/s41596-021-00674-3] [Citation(s) in RCA: 70] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 11/25/2021] [Indexed: 12/14/2022]
Abstract
Human intestinal morphogenesis establishes 3D epithelial microarchitecture and spatially organized crypt-villus characteristics. This unique structure is necessary to maintain intestinal homeostasis by protecting the stem cell niche in the basal crypt from exogenous microbial antigens and their metabolites. Also, intestinal villi and secretory mucus present functionally differentiated epithelial cells with a protective barrier at the intestinal mucosal surface. Thus, re-creating the 3D epithelial structure is critical to building in vitro intestine models. Notably, an organomimetic gut-on-a-chip can induce spontaneous 3D morphogenesis of an intestinal epithelium with enhanced physiological function and biomechanics. Here we provide a reproducible protocol to robustly induce intestinal morphogenesis in a microfluidic gut-on-a-chip as well as in a Transwell-embedded hybrid chip. We describe detailed methods for device fabrication, culture of Caco-2 or intestinal organoid epithelial cells in conventional setups as well as on microfluidic platforms, induction of 3D morphogenesis and characterization of established 3D epithelium using multiple imaging modalities. This protocol enables the regeneration of functional intestinal microarchitecture by controlling basolateral fluid flow within 5 d. Our in vitro morphogenesis method employs physiologically relevant shear stress and mechanical motions, and does not require complex cellular engineering or manipulation, which may be advantageous over other existing techniques. We envision that our proposed protocol may have a broad impact on biomedical research communities, providing a method to regenerate in vitro 3D intestinal epithelial layers for biomedical, clinical and pharmaceutical applications.
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42
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Jasso GJ, Jaiswal A, Varma M, Laszewski T, Grauel A, Omar A, Silva N, Dranoff G, Porter JA, Mansfield K, Cremasco V, Regev A, Xavier RJ, Graham DB. Colon stroma mediates an inflammation-driven fibroblastic response controlling matrix remodeling and healing. PLoS Biol 2022; 20:e3001532. [PMID: 35085231 PMCID: PMC8824371 DOI: 10.1371/journal.pbio.3001532] [Citation(s) in RCA: 40] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 02/08/2022] [Accepted: 01/07/2022] [Indexed: 12/22/2022] Open
Abstract
Chronic inflammation is often associated with the development of tissue fibrosis, but how mesenchymal cell responses dictate pathological fibrosis versus resolution and healing remains unclear. Defining stromal heterogeneity and identifying molecular circuits driving extracellular matrix deposition and remodeling stands to illuminate the relationship between inflammation, fibrosis, and healing. We performed single-cell RNA-sequencing of colon-derived stromal cells and identified distinct classes of fibroblasts with gene signatures that are differentially regulated by chronic inflammation, including IL-11-producing inflammatory fibroblasts. We further identify a transcriptional program associated with trans-differentiation of mucosa-associated fibroblasts and define a functional gene signature associated with matrix deposition and remodeling in the inflamed colon. Our analysis supports a critical role for the metalloprotease Adamdec1 at the interface between tissue remodeling and healing during colitis, demonstrating its requirement for colon epithelial integrity. These findings provide mechanistic insight into how inflammation perturbs stromal cell behaviors to drive fibroblastic responses controlling mucosal matrix remodeling and healing.
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Affiliation(s)
- Guadalupe J. Jasso
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
| | - Alok Jaiswal
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
| | - Mukund Varma
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
| | - Tyler Laszewski
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Angelo Grauel
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Abdifatah Omar
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Nilsa Silva
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Glenn Dranoff
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Jeffrey A. Porter
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Keith Mansfield
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Viviana Cremasco
- Novartis Institutes for BioMedical Research, Cambridge, Massachusetts, United States of America
| | - Aviv Regev
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Howard Hughes Medical Institute and David H. Koch Institute for Integrative Cancer Research, Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
| | - Ramnik J. Xavier
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- Klarman Cell Observatory, Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- * E-mail: (RJX); (DBG)
| | - Daniel B. Graham
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Computational and Integrative Biology, Massachusetts General Hospital, Boston, Massachusetts, United States of America
- Center for the Study of Inflammatory Bowel Disease, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
- Center for Microbiome Informatics and Therapeutics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America
- * E-mail: (RJX); (DBG)
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43
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Bamias G, Pizarro TT, Cominelli F. Immunological Regulation of Intestinal Fibrosis in Inflammatory Bowel Disease. Inflamm Bowel Dis 2021; 28:337-349. [PMID: 34904152 PMCID: PMC8919810 DOI: 10.1093/ibd/izab251] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Indexed: 02/06/2023]
Abstract
Intestinal fibrosis is a late-stage phenotype of inflammatory bowel disease (IBD), which underlies most of the long-term complications and surgical interventions in patients, particularly those with Crohn's disease. Despite these issues, antifibrotic therapies are still scarce, mainly due to the current lack of understanding concerning the pathogenetic mechanisms that mediate fibrogenesis in patients with chronic intestinal inflammation. In the current review, we summarize recent evidence regarding the cellular and molecular factors of innate and adaptive immunity that are considered critical for the initiation and amplification of extracellular matrix deposition and stricture formation. We focus on the role of cytokines by dissecting the pro- vs antifibrotic components of the immune response, while taking into consideration their temporal association to the progressive stages of the natural history of IBD. We critically present evidence from animal models of intestinal fibrosis and analyze inflammation-fibrosis interactions that occur under such experimental scenarios. In addition, we comment on recent findings from large-scale, single-cell profiling of fibrosis-relevant populations in IBD patients. Based on such evidence, we propose future potential targets for antifibrotic therapies to treat patients with IBD.
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Affiliation(s)
- Giorgos Bamias
- Gastrointestinal Unit, Third Academic Department of Internal Medicine, National and Kapodistrian University of Athens, Sotiria Hospital, Athens, Greece
| | - Theresa T Pizarro
- Departments of Pathology and Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Fabio Cominelli
- Departments of Pathology and Medicine, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Digestive Health Research Institute, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
- Address correspondence to: Fabio Cominelli, MD, PhD, ()
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Fu X, He Q, Tao Y, Wang M, Wang W, Wang Y, Yu QC, Zhang F, Zhang X, Chen YG, Gao D, Hu P, Hui L, Wang X, Zeng YA. Recent advances in tissue stem cells. SCIENCE CHINA. LIFE SCIENCES 2021; 64:1998-2029. [PMID: 34865207 DOI: 10.1007/s11427-021-2007-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 06/08/2021] [Indexed: 12/13/2022]
Abstract
Stem cells are undifferentiated cells capable of self-renewal and differentiation, giving rise to specialized functional cells. Stem cells are of pivotal importance for organ and tissue development, homeostasis, and injury and disease repair. Tissue-specific stem cells are a rare population residing in specific tissues and present powerful potential for regeneration when required. They are usually named based on the resident tissue, such as hematopoietic stem cells and germline stem cells. This review discusses the recent advances in stem cells of various tissues, including neural stem cells, muscle stem cells, liver progenitors, pancreatic islet stem/progenitor cells, intestinal stem cells, and prostate stem cells, and the future perspectives for tissue stem cell research.
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Affiliation(s)
- Xin Fu
- Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200233, China
| | - Qiang He
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Yu Tao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Mengdi Wang
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology, Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wei Wang
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology, Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yalong Wang
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Qing Cissy Yu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Fang Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
| | - Xiaoyu Zhang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ye-Guang Chen
- The State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China.
- Max-Planck Center for Tissue Stem Cell Research and Regenerative Medicine, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510530, China.
| | - Dong Gao
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Ping Hu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China.
- Xinhua Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200233, China.
- Max-Planck Center for Tissue Stem Cell Research and Regenerative Medicine, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510530, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
- Bio-Research Innovation Center, Shanghai Institute of Biochemistry and Cell Biology, Suzhou, 215121, China.
| | - Lijian Hui
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
- Bio-Research Innovation Center, Shanghai Institute of Biochemistry and Cell Biology, Suzhou, 215121, China.
- School of Life Science and Technology, ShanghaiTech University, Shanghai, 201210, China.
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou, 310024, China.
| | - Xiaoqun Wang
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology, Bioland Laboratory (Guangzhou), Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, 100101, China.
- Advanced Innovation Center for Human Brain Protection, Beijing Institute for Brain Disorders, Capital Medical University, Beijing, 100069, China.
| | - Yi Arial Zeng
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai, 200031, China.
- Bio-Research Innovation Center, Shanghai Institute of Biochemistry and Cell Biology, Suzhou, 215121, China.
- School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Hangzhou, 310024, China.
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45
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All layers matter: Innovative three-dimensional epithelium-stroma-endothelium intestinal model for reliable permeability outcomes. J Control Release 2021; 341:414-430. [PMID: 34871636 DOI: 10.1016/j.jconrel.2021.11.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/19/2021] [Accepted: 11/30/2021] [Indexed: 12/15/2022]
Abstract
Drug development is an ever-growing field, increasingly requesting reliable in vitro tools to speed up early screening phases, reducing the need for animal experiments. In oral delivery, understanding the absorption pattern of a new drug in the small intestine is paramount. Classical two-dimensional (2D) in vitro models are generally too simplistic and do not accurately represent native tissues. The main goal of this work was to develop an advanced three-dimensional (3D) in vitro intestinal model to test absorption in a more reliable manner, by better mimicking the native environment. The 3D model is composed of a collagen-based stromal layer with embedded fibroblasts mimicking the intestinal lamina propria and providing support for the epithelium, composed of enterocytes and mucus-secreting cells. An endothelial layer, surrogating the absorptive capillary network, is also present. The cellular crosstalk between the different cells present in the model is unveiled, disclosing key players, namely those involved in the contraction of collagen by fibroblasts. The developed 3D model presents lower levels of P-glycoprotein (P-gp) and Multidrug Resistance Protein 2 (MRP2) efflux transporters, which are normally overexpressed in traditional Caco-2 models, and are paramount in the absorption of many compounds. This, allied with transepithelial electrical resistance (TEER) values closer to physiological ranges, leads to improved and more reliable permeability outcomes, which are observed when comparing our results with in vivo data.
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46
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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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47
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Martín-Alonso M, Iqbal S, Vornewald PM, Lindholm HT, Damen MJ, Martínez F, Hoel S, Díez-Sánchez A, Altelaar M, Katajisto P, Arroyo AG, Oudhoff MJ. Smooth muscle-specific MMP17 (MT4-MMP) regulates the intestinal stem cell niche and regeneration after damage. Nat Commun 2021; 12:6741. [PMID: 34795242 PMCID: PMC8602650 DOI: 10.1038/s41467-021-26904-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 10/28/2021] [Indexed: 12/25/2022] Open
Abstract
Smooth muscle is an essential component of the intestine, both to maintain its structure and produce peristaltic and segmentation movements. However, very little is known about other putative roles that smooth muscle cells may have. Here, we show that smooth muscle cells may be the dominant suppliers of BMP antagonists, which are niche factors essential for intestinal stem cell maintenance. Furthermore, muscle-derived factors render epithelium reparative and fetal-like, which includes heightened YAP activity. Mechanistically, we find that the membrane-bound matrix metalloproteinase MMP17, which is exclusively expressed by smooth muscle cells, is required for intestinal epithelial repair after inflammation- or irradiation-induced injury. Furthermore, we propose that MMP17 affects intestinal epithelial reprogramming after damage indirectly by cleaving diffusible factor(s) such as the matricellular protein PERIOSTIN. Together, we identify an important signaling axis that establishes a role for smooth muscle cells as modulators of intestinal epithelial regeneration and the intestinal stem cell niche.
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Affiliation(s)
- Mara Martín-Alonso
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
| | - Sharif Iqbal
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
- Molecular and Integrative Bioscience Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
| | - Pia M Vornewald
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Håvard T Lindholm
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Mirjam J Damen
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Fernando Martínez
- Bioinformatics Unit. Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
| | - Sigrid Hoel
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Alberto Díez-Sánchez
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - Maarten Altelaar
- Biomolecular Mass Spectrometry and Proteomics, Bijvoet Center for Biomolecular Research and Utrecht Institute for Pharmaceutical Sciences, Utrecht University, Utrecht, Netherlands
| | - Pekka Katajisto
- Institute of Biotechnology, HiLIFE, University of Helsinki, Helsinki, Finland
- Molecular and Integrative Bioscience Research Programme, Faculty of Biological and Environmental Sciences, University of Helsinki, Helsinki, Finland
- Department of Cell and Molecular Biology, Karolinska Institutet, Stockholm, Sweden
| | - Alicia G Arroyo
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas Margarita Salas (CIB-CSIC), Madrid, Spain
- Vascular Pathophysiology Area, Centro Nacional de Investigaciones Cardiovasculares (CNIC), Madrid, Spain
| | - Menno J Oudhoff
- Centre of Molecular Inflammation Research, and Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway.
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48
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Progatzky F, Shapiro M, Chng SH, Garcia-Cassani B, Classon CH, Sevgi S, Laddach A, Bon-Frauches AC, Lasrado R, Rahim M, Amaniti EM, Boeing S, Shah K, Entwistle LJ, Suárez-Bonnet A, Wilson MS, Stockinger B, Pachnis V. Regulation of intestinal immunity and tissue repair by enteric glia. Nature 2021; 599:125-130. [PMID: 34671159 DOI: 10.1038/s41586-021-04006-z] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 09/07/2021] [Indexed: 02/06/2023]
Abstract
Tissue maintenance and repair depend on the integrated activity of multiple cell types1. Whereas the contributions of epithelial2,3, immune4,5 and stromal cells6,7 in intestinal tissue integrity are well understood, the role of intrinsic neuroglia networks remains largely unknown. Here we uncover important roles of enteric glial cells (EGCs) in intestinal homeostasis, immunity and tissue repair. We demonstrate that infection of mice with Heligmosomoides polygyrus leads to enteric gliosis and the upregulation of an interferon gamma (IFNγ) gene signature. IFNγ-dependent gene modules were also induced in EGCs from patients with inflammatory bowel disease8. Single-cell transcriptomics analysis of the tunica muscularis showed that glia-specific abrogation of IFNγ signalling leads to tissue-wide activation of pro-inflammatory transcriptional programs. Furthermore, disruption of the IFNγ-EGC signalling axis enhanced the inflammatory and granulomatous response of the tunica muscularis to helminths. Mechanistically, we show that the upregulation of Cxcl10 is an early immediate response of EGCs to IFNγ signalling and provide evidence that this chemokine and the downstream amplification of IFNγ signalling in the tunica muscularis are required for a measured inflammatory response to helminths and resolution of the granulomatous pathology. Our study demonstrates that IFNγ signalling in enteric glia is central to intestinal homeostasis and reveals critical roles of the IFNγ-EGC-CXCL10 axis in immune response and tissue repair after infectious challenge.
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Affiliation(s)
- Fränze Progatzky
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.
| | - Michael Shapiro
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.,AhRimmunity Laboratory, The Francis Crick Institute, London, UK
| | - Song Hui Chng
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.,Roche Innovation Center Shanghai, Shanghai, China
| | - Bethania Garcia-Cassani
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Cajsa Helena Classon
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Selin Sevgi
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Anna Laddach
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Ana Carina Bon-Frauches
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.,Department of Pathology, GROW-School for Oncology and Developmental Biology, Maastricht University Medical Centre, Maastricht, The Netherlands
| | - Reena Lasrado
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Maryam Rahim
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK
| | - Eleni-Maria Amaniti
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.,AhRimmunity Laboratory, The Francis Crick Institute, London, UK.,Sainsbury Wellcome Centre, London, UK
| | - Stefan Boeing
- Bioinformatics & Biostatistics STP, The Francis Crick Institute, London, UK
| | - Kathleen Shah
- AhRimmunity Laboratory, The Francis Crick Institute, London, UK
| | - Lewis J Entwistle
- AhRimmunity Laboratory, The Francis Crick Institute, London, UK.,Adaptive Immunity Research Unit, GSK, Stevenage, UK
| | - Alejandro Suárez-Bonnet
- Department of Pathobiology & Population Sciences, The Royal Veterinary College, Hatfield, UK.,Experimental Histopathology STP, The Francis Crick Institute, London, UK
| | - Mark S Wilson
- Immunology Discovery, Genentech Inc, South San Francisco, CA, USA
| | | | - Vassilis Pachnis
- Development and Homeostasis of the Nervous System Laboratory, The Francis Crick Institute, London, UK.
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49
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Abstract
Fibroblasts are important cells for the support of homeostatic tissue function. In inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease, fibroblasts take on different roles (a) as inflammatory cells themselves and (b) in recruiting leukocytes, driving angiogenesis, and enabling chronic inflammation in tissues. Recent advances in single-cell profiling techniques have transformed the ability to examine fibroblast states and populations in inflamed tissues, providing evidence of previously underappreciated heterogeneity and disease-associated fibroblast populations. These studies challenge the preconceived notion that fibroblasts are homogeneous and provide new insights into the role of fibroblasts in inflammatory pathology. In addition, new molecular insights into the mechanisms of fibroblast activation reveal powerful cell-intrinsic amplification loops that synergize with primary fibroblast stimuli to result in striking responses. In this Review, we focus on recent developments in our understanding of fibroblast heterogeneity and fibroblast pathology across tissues and diseases in rheumatoid arthritis and inflammatory bowel diseases. We highlight new approaches to, and applications of, single-cell profiling techniques and what they teach us about fibroblast biology. Finally, we address how these insights could lead to the development of novel therapeutic approaches to targeting fibroblasts in disease.
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50
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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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