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Agibalova T, Hempel A, Maurer HC, Ragab M, Ermolova A, Wieland J, Waldherr Ávila de Melo C, Heindl F, Giller M, Fischer JC, Tschurtschenthaler M, Kohnke-Ertel B, Öllinger R, Steiger K, Demir IE, Saur D, Quante M, Schmid RM, Middelhoff M. Vasoactive intestinal peptide promotes secretory differentiation and mitigates radiation-induced intestinal injury. Stem Cell Res Ther 2024; 15:348. [PMID: 39380035 PMCID: PMC11462795 DOI: 10.1186/s13287-024-03958-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2024] [Accepted: 09/24/2024] [Indexed: 10/10/2024] Open
Abstract
BACKGROUND Vasoactive intestinal peptide (VIP) is a neuronal peptide with prominent distribution along the enteric nervous system. While effects of VIP on intestinal motility, mucosal vasodilation, secretion, and mucosal immune cell function are well-studied, the direct impact of VIP on intestinal epithelial cell turnover and differentiation remains less understood. Intestinal stem and progenitor cells are essential for the maintenance of intestinal homeostasis and regeneration, and their functions can be modulated by factors of the stem cell niche, including neuronal mediators. Here, we investigated the role of VIP in regulating intestinal epithelial homeostasis and regeneration following irradiation-induced injury. METHODS Jejunal organoids were derived from male and female C57Bl6/J, Lgr5-EGFP-IRES-CreERT2 or Lgr5-EGFP-IRES-CreERT2/R26R-LSL-TdTomato mice and treated with VIP prior to analysis. Injury conditions were induced by exposing organoids to 6 Gy of irradiation (IR). To investigate protective effects of VIP in vivo, mice received 12 Gy of abdominal IR followed by intraperitoneal injections of VIP. RESULTS We observed that VIP promotes epithelial differentiation towards a secretory phenotype predominantly via the p38 MAPK pathway. Moreover, VIP prominently modulated epithelial proliferation as well as the number and proliferative activity of Lgr5-EGFP+ progenitor cells under homeostatic conditions. In the context of acute irradiation injury in vitro, we observed that IR injury renders Lgr5-EGFP+ progenitor cells more susceptible to VIP-induced modulations, which coincided with the strong promotion of epithelial regeneration by VIP. Finally, the observed effects translate into an in vivo model of abdominal irradiation, where VIP showed to prominently mitigate radiation-induced injury. CONCLUSIONS VIP prominently governs intestinal homeostasis by regulating epithelial progenitor cell proliferation and differentiation and promotes intestinal regeneration following acute irradiation injury.
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Affiliation(s)
- Tatiana Agibalova
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Anneke Hempel
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - H Carlo Maurer
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Mohab Ragab
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Anastasia Ermolova
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Jessica Wieland
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Caroline Waldherr Ávila de Melo
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Fabian Heindl
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Maximilian Giller
- Department of Radiation Oncology, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Julius Clemens Fischer
- Department of Radiation Oncology, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Markus Tschurtschenthaler
- Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Chair of Translational Cancer Research and Institute of Experimental Cancer Therapy, Klinikum rechts der Isar, School of Medicine and Health, Technical University of Munich, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), Klinikum rechts der Isar, School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Birgit Kohnke-Ertel
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Rupert Öllinger
- Institute of Molecular Oncology and Functional Genomics, Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Katja Steiger
- Institute of Pathology, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Ihsan Ekin Demir
- Department of Surgery, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
- Else Kröner Clinician Scientist Professor for Translational Pancreatic Surgery, Munich, Germany
| | - Dieter Saur
- Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
- Chair of Translational Cancer Research and Institute of Experimental Cancer Therapy, Klinikum rechts der Isar, School of Medicine and Health, Technical University of Munich, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), Klinikum rechts der Isar, School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Michael Quante
- Department of Internal Medicine II, Faculty of Medicine, Freiburg University Medical Center, University of Freiburg, Freiburg, Germany
| | - Roland M Schmid
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany
| | - Moritz Middelhoff
- Department of Internal Medicine II, Klinikum rechts der Isar, TUM School of Medicine and Health, Technical University of Munich, Munich, Germany.
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Jiang L, Tian J, Yang J, Luo R, Zhang Y, Shao C, Guo B, Wu X, Dan J, Luo Y. p21 Regulates Wnt-Notch balance via DREAM/MMB/Rb-E2F1 and maintains intestinal stem cell homeostasis. Cell Death Discov 2024; 10:413. [PMID: 39341834 PMCID: PMC11438959 DOI: 10.1038/s41420-024-02192-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2024] [Revised: 09/17/2024] [Accepted: 09/23/2024] [Indexed: 10/01/2024] Open
Abstract
The crosstalk and balance regulation of Wnt-Notch have been known to be essential for cell fate decision and tissue regeneration, however, how this balance is maintained and how the Wnt-Notch pathways are connected with cell cycle regulation is still not clear. By analyzing the molecular alterations in mouse model with accelerated aging phenotypes due to loss of p21 function in a Werner syndrome background, we observed that Wnt3 and β-Catenin were down-regulated, while Notch1 and Hes1 were up-regulated. This disruption in Wnt-Notch signaling was accompanied by the loss of intestinal stem cell compartment, increase in Bmi1 positive cells, loss of Olfm4/Lgr5 positive cells, and reduced secretory Paneth cells and goblet cells in the intestinal crypts of p21TKO mice. BrdU incorporation, cleaved caspase 3, and Tunel assay results revealed the fast turnover of intestinal epithelia, which may result in abnormal stem cell mobilization and exhaustion of the stem cell reservoir in the intestinal crypts. We further identified shift of DREAM complex towards MMB complex due to the loss of p21 as the cause for faster turnover of intestinal epithelia. Importantly, we identified the E2F1 as the transcriptional regulator for Notch1, which linked the p21-DREAM/MMB/Rb-E2F1 pathway with Wnt-Notch pathway. The overexpression of p21 rescued the DREAM pathway, as well as the imbalance of Wnt-Notch pathway. In summary, our data identify p21 as an important factor in maintaining sequential mobilization, proliferation, and homeostasis of intestinal stem cells.
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Affiliation(s)
- Liangxia Jiang
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jie Tian
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Jun Yang
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Ronggang Luo
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Yongjin Zhang
- Laboratory of Molecular Genetics of Aging & Tumor, Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Chihao Shao
- Laboratory of Molecular Genetics of Aging & Tumor, Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Bing Guo
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China
| | - Xiaoming Wu
- Laboratory of Molecular Genetics of Aging & Tumor, Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Juhua Dan
- Laboratory of Molecular Genetics of Aging & Tumor, Medical School, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Ying Luo
- Department of Pathophysiology, School of Basic Medicine, Guizhou Medical University, Guiyang, Guizhou, China.
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Chugh RM, Bhanja P, Zitter R, Gunewardena S, Badkul R, Saha S. Modulation of β-Catenin is important to promote WNT expression in macrophages and mitigate intestinal injury. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.21.614209. [PMID: 39345507 PMCID: PMC11429945 DOI: 10.1101/2024.09.21.614209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
Macrophages are the major source of WNT ligands. Macrophage-derived WNT is one of the most potent regenerative signals to mitigate intestinal injury. However, regulation of WNT expression in macrophages has not been studied. In the present study, we discovered that activation of canonical β-Catenin suppresses WNT expression in macrophages. Our CHIP-seq and validation study demonstrated the involvement of β-Catenin in the transcriptional regulation of WNT expression. Genetic and pharmacological approaches to de-stabilize/inactivate β-Catenin induce WNT expression in macrophages. Extracellular vesicles (EVs) are a major career of WNT ligands. Transfusion of EVs from pre-conditioned WNT-enriched macrophages demonstrated significant regenerative benefit over native macrophage-derived EVs to mitigate radiation-induced intestinal injury. Transfusion of WNT-enriched EVs also reduces DSS-induced colitis. Our study provides substantial evidence to consider that macrophage-targeted modulation of canonical WNT signaling to induce WNT expression followed by treatment with WNT-enriched EVs can be a lead therapy against intestinal injury.. SUMMARY Activation of β-Catenin suppresses WNT expression in macrophages. Macrophage-targeted pharmacological modulation of canonical WNT signaling followed by adoptive transfer mitigate radiation injury in intestine. EVs from these preconditioned macrophages mitigate chemical or radiation induced intestinal injury.
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Gerdol M, Greco S, Marino R, Locascio A, Plateroti M, Sirakov M. Conserved Signaling Pathways in the Ciona robusta Gut. Int J Mol Sci 2024; 25:7846. [PMID: 39063090 PMCID: PMC11277035 DOI: 10.3390/ijms25147846] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2024] [Revised: 07/04/2024] [Accepted: 07/14/2024] [Indexed: 07/28/2024] Open
Abstract
The urochordate Ciona robusta exhibits numerous functional and morphogenetic traits that are shared with vertebrate models. While prior investigations have identified several analogies between the gastrointestinal tract (i.e., gut) of Ciona and mice, the molecular mechanisms responsible for these similarities remain poorly understood. This study seeks to address this knowledge gap by investigating the transcriptional landscape of the adult stage gut. Through comparative genomics analyses, we identified several evolutionarily conserved components of signaling pathways of pivotal importance for gut development (such as WNT, Notch, and TGFβ-BMP) and further evaluated their expression in three distinct sections of the gastrointestinal tract by RNA-seq. Despite the presence of lineage-specific gene gains, losses, and often unclear orthology relationships, the investigated pathways were characterized by well-conserved molecular machinery, with most components being expressed at significant levels throughout the entire intestinal tract of C. robusta. We also showed significant differences in the transcriptional landscape of the stomach and intestinal tract, which were much less pronounced between the proximal and distal portions of the intestine. This study confirms that C. robusta is a reliable model system for comparative studies, supporting the use of ascidians as a model to study gut physiology.
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Affiliation(s)
- Marco Gerdol
- Department of Life Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (M.G.); (S.G.)
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy; (R.M.); (A.L.)
| | - Samuele Greco
- Department of Life Sciences, Università degli Studi di Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy; (M.G.); (S.G.)
| | - Rita Marino
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy; (R.M.); (A.L.)
| | - Annamaria Locascio
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy; (R.M.); (A.L.)
| | - Michelina Plateroti
- Institute of Genetics and Molecular and Cellular Biology, CNRS UMR7104–INSERM U1258–Université de Strasbourg, 1 Rue Laurent Fries, 67404 Illkirch, France
| | - Maria Sirakov
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Naples, Italy; (R.M.); (A.L.)
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Lin YJ, Li HM, Gao YR, Wu PF, Cheng B, Yu CL, Sheng YX, Xu HM. Environmentally relevant concentrations of benzophenones exposure disrupt intestinal homeostasis, impair the intestinal barrier, and induce inflammation in mice. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 350:123948. [PMID: 38614423 DOI: 10.1016/j.envpol.2024.123948] [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: 02/02/2024] [Revised: 03/28/2024] [Accepted: 04/08/2024] [Indexed: 04/15/2024]
Abstract
The aim of this study is to investigate the adverse effects of benzophenones (BPs) on the intestinal tract of mice and the potential mechanism. F1-generation ICR mice were exposed to BPs (benzophenone-1, benzophenone-2, and benzophenone-3) by breastfeeding from birth until weaning, and by drinking water after weaning until maturity. The offspring mice were executed on postnatal day 56, then their distal colons were sampled. AB-PAS staining, HE staining, immunofluorescence, Transmission Electron Microscope, immunohistochemistry, Western Blot and RT-qPCR were used to study the effects of BPs exposure on the colonic tissues of offspring mice. The results showed that colonic microvilli appeared significantly deficient in the high-dose group, and the expression of tight junction markers Zo-1 and Occludin was significantly down-regulated and the number of goblet cells and secretions were reduced in all dose groups, and the expression of secretory cell markers MUC2 and KI67 were decreased, as well as the expression of intestinal stem cell markers Lgr5 and Bmi1, suggesting that BPs exposure caused disruption of intestinal barrier and imbalance in the composition of the intestinal stem cell pool. Besides, the expression of cellular inflammatory factors such as macrophage marker F4/80 and tumor necrosis factor TNF-α was elevated in the colonic tissues of all dose groups, and the inflammatory infiltration was observed, which means the exposure of BPs caused inflammatory effects in the intestinal tract of F1-generation mice. In addition, the contents of Notch/Wnt signaling pathway-related genes, such as Dll-4, Notch1, Hes1, Ctnnb1and Sfrp2 were significantly decreased in each high-dose group (P < 0.05), suggesting that BPs may inhibit the regulation of Notch/Wnt signaling pathway. In conclusion, exposure to BPs was able to imbalance colonic homeostasis, disrupt the intestinal barrier, and trigger inflammation in the offspring mice, which might be realized through interfering with the Notch/Wnt signaling pathway.
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Affiliation(s)
- Yu-Jia Lin
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Hong-Mei Li
- The Key Laboratory of Fertility Preservation and Maintenance of the Ministry of Education, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; School of Basic Medicine, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Yan-Rong Gao
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Ping-Fan Wu
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Bin Cheng
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Chen-Long Yu
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Yu-Xin Sheng
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China
| | - Hai-Ming Xu
- School of Public Health, Ningxia Medical University, Yinchuan, 750004, Ningxia, China; The Key Laboratory of Environmental Factors and Chronic Disease Control, Ningxia Medical University, Yinchuan, 750004, Ningxia, China.
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Chen J, Horiuchi S, Kuramochi S, Kawasaki T, Kawasumi H, Akiyama S, Arai T, Morinaga K, Kimura T, Kiyono T, Akutsu H, Ishida S, Umezawa A. Human intestinal organoid-derived PDGFRα + mesenchymal stroma enables proliferation and maintenance of LGR4 + epithelial stem cells. Stem Cell Res Ther 2024; 15:16. [PMID: 38229108 PMCID: PMC10792855 DOI: 10.1186/s13287-023-03629-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 12/27/2023] [Indexed: 01/18/2024] Open
Abstract
BACKGROUND Intestinal epithelial cells derived from human pluripotent stem cells (hPSCs) are generally maintained and cultured as organoids in vitro because they do not exhibit adhesion when cultured. However, the three-dimensional structure of organoids makes their use in regenerative medicine and drug discovery difficult. Mesenchymal stromal cells are found near intestinal stem cells in vivo and provide trophic factors to regulate stem cell maintenance and proliferation, such as BMP inhibitors, WNT, and R-spondin. In this study, we aimed to use mesenchymal stromal cells isolated from hPSC-derived intestinal organoids to establish an in vitro culture system that enables stable proliferation and maintenance of hPSC-derived intestinal epithelial cells in adhesion culture. METHODS We established an isolation protocol for intestinal epithelial cells and mesenchymal stromal cells from hPSCs-derived intestinal organoids and a co-culture system for these cells. We then evaluated the intestinal epithelial cells and mesenchymal stromal cells' morphology, proliferative capacity, chromosomal stability, tumorigenicity, and gene expression profiles. We also evaluated the usefulness of the cells for pharmacokinetic and toxicity studies. RESULTS The proliferating intestinal epithelial cells exhibited a columnar form, microvilli and glycocalyx formation, cell polarity, and expression of drug-metabolizing enzymes and transporters. The intestinal epithelial cells also showed barrier function, transporter activity, and drug-metabolizing capacity. Notably, small intestinal epithelial stem cells cannot be cultured in adherent culture without mesenchymal stromal cells and cannot replaced by other feeder cells. Organoid-derived mesenchymal stromal cells resemble the trophocytes essential for maintaining small intestinal epithelial stem cells and play a crucial role in adherent culture. CONCLUSIONS The high proliferative expansion, productivity, and functionality of hPSC-derived intestinal epithelial cells may have potential applications in pharmacokinetic and toxicity studies and regenerative medicine.
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Affiliation(s)
- JunLong Chen
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Sendai, Japan
| | - Shinichiro Horiuchi
- Division of Pharmacology, National Institute of Health Sciences, Kawasaki, Japan
| | - So Kuramochi
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Tomoyuki Kawasaki
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Hayato Kawasumi
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Saeko Akiyama
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Sendai, Japan
| | - Tomoki Arai
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Kenichi Morinaga
- 1st Section, 1st Development Department, Food and Healthcare Business Development Unit, Business Development Division, Research & Business Development Center, Dai Nippon Printing Co., Ltd., Tokyo, Japan
| | - Tohru Kimura
- Laboratory of Stem Cell Biology, Department of BioSciences, Kitasato University School of Science, Kanagawa, Japan
| | - Tohru Kiyono
- Project for Prevention of HPV-Related Cancer, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Chiba, Japan
| | - Hidenori Akutsu
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan
| | - Seiichi Ishida
- Division of Pharmacology, National Institute of Health Sciences, Kawasaki, Japan
- Graduate School of Engineering, Sojo University, Kumamoto, Japan
| | - Akihiro Umezawa
- Center for Regenerative Medicine, National Center for Child Health and Development Research Institute, 2-10-1 Okura, Setagaya, Tokyo, 157-8535, Japan.
- Department of Advanced Pediatric Medicine, Tohoku University School of Medicine, Sendai, Japan.
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7
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Guo LL, Yan RY, Du Z, Li HB, Li GL, Wu SH. Ginseng promotes the function of intestinal stem cells through the Wnt/β-catenin signaling pathway in D-galactose-induced aging mice. Exp Gerontol 2024; 185:112351. [PMID: 38135257 DOI: 10.1016/j.exger.2023.112351] [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: 02/22/2023] [Revised: 12/10/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Intestinal stem cells (ISCs) are the reservoir source of various types of intestinal cells, and the decline of stem cell function in the gut may be a potential factor for aging-related disease. The present study aimed to explore the regulatory mechanisms of Panax ginseng C.A.Meyer (Araliaceae, Panax genus) that could restore gut aging by enhancing intestinal function and regulating ISCs in aging mice based on the Wnt/β-catenin signaling pathway. METHODS A total of 60 ICR male mice were randomly divided into control, model, metformin, and ginseng water decoction (GWD) 3.6, 1.8, and 0.9 g/kg groups. The aging model was induced by 1 % D-galactose (s.c. 0.1 mL/10 g) for 28 days. Moreover, GWD was given to aging mice intragastrically (i.g.) once a day for 28 successive days. The learning memory ability, pathological status, and function in the ileum tissue, the activity of digestive enzymes, and short-chain fatty acid (SCFA) content in the colon were evaluated, and the related mechanism was investigated. RESULTS Ginseng can decrease the escape latency time and increase the swimming speed and the number of crossing platforms in aging mice. Moreover, the pathology of ileum tissue improved, the length of the intestinal villi increased, and the width of the villi and the depth of the crypts decreased. The activities of trypsin, α-amylase, and lipase increased in duodenal content and intestinal mucosa. In the colon, the content of SCFA, such as acetic acid, propionic acid and butyric acid, increased, indicating that ginseng significantly improves intestinal function impairment. The mRNA expressions and protein levels of β-catenin, C-myc, GSK-3β, Lgr5, and Olfm4 were upregulated in the ginseng group. CONCLUSIONS Ginseng improves intestinal function and regulates the function of ISCs in order to protect intestinal health by activating the Wnt/β-catenin signaling pathway in aging mice.
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Affiliation(s)
- Lu Lu Guo
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Ru Yu Yan
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Zheng Du
- Pharmacy College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Han Bing Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China
| | - Gen Lin Li
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China.
| | - Su Hui Wu
- Medical College, Henan University of Chinese Medicine, Zhengzhou 450046, China.
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8
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Xiao L, Warner B, Mallard CG, Chung HK, Shetty A, Brantner CA, Rao JN, Yochum GS, Koltun WA, To KB, Turner DJ, Gorospe M, Wang JY. Control of Paneth cell function by HuR regulates gut mucosal growth by altering stem cell activity. Life Sci Alliance 2023; 6:e202302152. [PMID: 37696579 PMCID: PMC10494932 DOI: 10.26508/lsa.202302152] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023] Open
Abstract
Rapid self-renewal of the intestinal epithelium requires the activity of intestinal stem cells (ISCs) that are intermingled with Paneth cells (PCs) at the crypt base. PCs provide multiple secreted and surface-bound niche signals and play an important role in the regulation of ISC proliferation. Here, we show that control of PC function by RNA-binding protein HuR via mitochondria affects intestinal mucosal growth by altering ISC activity. Targeted deletion of HuR in mice disrupted PC gene expression profiles, reduced PC-derived niche factors, and impaired ISC function, leading to inhibited renewal of the intestinal epithelium. Human intestinal mucosa from patients with critical surgical disorders exhibited decreased levels of tissue HuR and PC/ISC niche dysfunction, along with disrupted mucosal growth. HuR deletion led to mitochondrial impairment by decreasing the levels of several mitochondrial-associated proteins including prohibitin 1 (PHB1) in the intestinal epithelium, whereas HuR enhanced PHB1 expression by preventing microRNA-195 binding to the Phb1 mRNA. These results indicate that HuR is essential for maintaining the integrity of the PC/ISC niche and highlight a novel role for a defective PC/ISC niche in the pathogenesis of intestinal mucosa atrophy.
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Affiliation(s)
- Lan Xiao
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Bridgette Warner
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Caroline G Mallard
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Hee K Chung
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Amol Shetty
- https://ror.org/04rq5mt64 Institute for Genome Science, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Christine A Brantner
- https://ror.org/04rq5mt64 Electron Microscopy Core Imaging Facility, University of Maryland Baltimore, Baltimore, MD, USA
| | - Jaladanki N Rao
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Gregory S Yochum
- Department of Surgery, Pennsylvania State University College of Medicine, Hershey, PA, USA
- Department of Biochemistry and Molecular Biology, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Walter A Koltun
- Department of Surgery, Pennsylvania State University College of Medicine, Hershey, PA, USA
| | - Kathleen B To
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Douglas J Turner
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
| | - Myriam Gorospe
- Laboratory of Genetics and Genomics, National Institute on Aging-IRP, NIH, Baltimore, MD, USA
| | - Jian-Ying Wang
- https://ror.org/04rq5mt64 Cell Biology Group, Department of Surgery, University of Maryland School of Medicine, Baltimore, MD, USA
- Baltimore Veterans Affairs Medical Center, Baltimore, MD, USA
- https://ror.org/04rq5mt64 Department of Pathology, University of Maryland School of Medicine, Baltimore, MD, USA
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9
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Xiang J, Guo J, Zhang S, Wu H, Chen YG, Wang J, Li B, Liu H. A stromal lineage maintains crypt structure and villus homeostasis in the intestinal stem cell niche. BMC Biol 2023; 21:169. [PMID: 37553612 PMCID: PMC10408166 DOI: 10.1186/s12915-023-01667-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 07/24/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND The nutrient-absorbing villi of small intestines are renewed and repaired by intestinal stem cells (ISCs), which reside in a well-organized crypt structure. Genetic studies have shown that Wnt molecules secreted by telocytes, Gli1+ stromal cells, and epithelial cells are required for ISC proliferation and villus homeostasis. Intestinal stromal cells are heterogeneous and single-cell profiling has divided them into telocytes/subepithelial myofibroblasts, myocytes, pericytes, trophocytes, and Pdgfralow stromal cells. Yet, the niche function of these stromal populations remains incompletely understood. RESULTS We show here that a Twist2 stromal lineage, which constitutes the Pdgfralow stromal cell and trophocyte subpopulations, maintains the crypt structure to provide an inflammation-restricting niche for regenerating ISCs. Ablating Twist2 lineage cells or deletion of one Wntless allele in these cells disturbs the crypt structure and impairs villus homeostasis. Upon radiation, Wntless haplo-deficiency caused decreased production of anti-microbial peptides and increased inflammation, leading to defective ISC proliferation and crypt regeneration, which were partially rescued by eradication of commensal bacteria. In addition, we show that Wnts secreted by Acta2+ subpopulations also play a role in crypt regeneration but not homeostasis. CONCLUSIONS These findings suggest that ISCs may require different niches for villus homeostasis and regeneration and that the Twist2 lineage cells may help to maintain a microbe-restricted environment to allow ISC-mediated crypt regeneration.
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Affiliation(s)
- Jinnan Xiang
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China
| | - Jigang Guo
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China
| | - Shaoyang Zhang
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China
| | - Hongguang Wu
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China
| | - Ye-Guang Chen
- State Key Laboratory of Membrane Biology, Tsinghua-Peking Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Junping Wang
- Chongqing Engineering Research Center for Nanomedicine, College of Preventive Medicine, Third Military Medical University, Chongqing, China
| | - Baojie Li
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China.
| | - Huijuan Liu
- The Bio-X Institutes, Shanghai Jiao Tong University, Shanghai, 200024, China.
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10
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Wang Z, Qu YJ, Cui M. Modulation of stem cell fate in intestinal homeostasis, injury and repair. World J Stem Cells 2023; 15:354-368. [PMID: 37342221 PMCID: PMC10277971 DOI: 10.4252/wjsc.v15.i5.354] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 03/31/2023] [Accepted: 04/24/2023] [Indexed: 05/26/2023] Open
Abstract
The mammalian intestinal epithelium constitutes the largest barrier against the external environment and makes flexible responses to various types of stimuli. Epithelial cells are fast-renewed to counteract constant damage and disrupted barrier function to maintain their integrity. The homeostatic repair and regeneration of the intestinal epithelium are governed by the Lgr5+ intestinal stem cells (ISCs) located at the base of crypts, which fuel rapid renewal and give rise to the different epithelial cell types. Protracted biological and physicochemical stress may challenge epithelial integrity and the function of ISCs. The field of ISCs is thus of interest for complete mucosal healing, given its relevance to diseases of intestinal injury and inflammation such as inflammatory bowel diseases. Here, we review the current understanding of the signals and mechanisms that control homeostasis and regeneration of the intestinal epithelium. We focus on recent insights into the intrinsic and extrinsic elements involved in the process of intestinal homeostasis, injury, and repair, which fine-tune the balance between self-renewal and cell fate specification in ISCs. Deciphering the regulatory machinery that modulates stem cell fate would aid in the development of novel therapeutics that facilitate mucosal healing and restore epithelial barrier function.
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Affiliation(s)
- Zhe Wang
- Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Yan-Ji Qu
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Min Cui
- Department of Orthopedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
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11
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Abbott J, Näthke IS. The adenomatous polyposis coli protein 30 years on. Semin Cell Dev Biol 2023:S1084-9521(23)00093-9. [PMID: 37095033 DOI: 10.1016/j.semcdb.2023.04.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 04/11/2023] [Accepted: 04/16/2023] [Indexed: 04/26/2023]
Abstract
Mutations in the gene encoding the Adenomatous polyposis coli protein (APC) were discovered as driver mutations in colorectal cancers almost 30 years ago. Since then, the importance of APC in normal tissue homeostasis has been confirmed in a plethora of other (model) organisms spanning a large evolutionary space. APC is a multifunctional protein, with roles as a key scaffold protein in complexes involved in diverse signalling pathways, most prominently the Wnt signalling pathway. APC is also a cytoskeletal regulator with direct and indirect links to and impacts on all three major cytoskeletal networks. Correspondingly, a wide range of APC binding partners have been identified. Mutations in APC are extremely strongly associated with colorectal cancers, particularly those that result in the production of truncated proteins and the loss of significant regions from the remaining protein. Understanding the complement of its role in health and disease requires knowing the relationship between and regulation of its diverse functions and interactions. This in turn requires understanding its structural and biochemical features. Here we set out to provide a brief overview of the roles and function of APC and then explore its conservation and structure using the extensive sequence data, which is now available, and spans a broad range of taxonomy. This revealed conservation of APC across taxonomy and new relationships between different APC protein families.
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Affiliation(s)
- James Abbott
- Division of Computational Biology & D'Arcy Thompson Unit, University of Dundee, Dow Street, Dundee, DD2 1 EH, United Kingdom.
| | - Inke S Näthke
- Division of Molecular Cell and Developmental Biology, University of Dundee, Dow Street, Dundee DD2 1EH, United Kingdom.
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12
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Zhu M, Wei R, Li Y, Li J, Dong M, Chen X, Lv L, Qin Z. Bisphenol chemicals disturb intestinal homeostasis via Notch/Wnt signaling and induce mucosal barrier dysregulation and inflammation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154444. [PMID: 35278557 DOI: 10.1016/j.scitotenv.2022.154444] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/22/2022] [Accepted: 03/06/2022] [Indexed: 06/14/2023]
Abstract
Emerging evidence has shown that bisphenol A (BPA) can exert adverse effects on intestinal barrier in rodents, but little is known about its underlying mechanisms. We previously found BPA and its substitute bisphenol F (BPF) disrupted Notch signaling and altered intestinal histological structures in Xenopus laevis tadpoles. The present study aimed to determine whether BPA and BPF could affect intestinal homeostasis via Notch/Wnt signaling and induce intestinal barrier dysregulation in adult mammals, given the fundamental roles of the two conserved signaling pathways in intestinal homeostasis and regulation of intestinal barrier. We found that following 7-day administration with BPA or BPF through drinking water at the reference dose of 50 μg/kg/d and no observed adverse effect level of 5 mg/kg/d (NOAEL) of BPA, adult male mice displayed no alterations at histological and cellular levels in colons, but high dose of both BPA and BPF downregulated the expression of Notch- and Wnt-related genes as well as key genes responsible for intestinal homeostasis. When administration was extended to 14 days, all treatments significantly suppressed the expression of all tested Notch- and Wnt-related genes; correspondingly, administrated colons exhibited downregulated expression of key genes responsible for intestinal homeostasis and reduced cell proliferation in crypts. Importantly, all treatments suppressed secretory cell differentiation, reduced mucin protein levels and downregulated expression of tight junction markers, implicating mucosal barrier dysregulation. Furthermore, inflammatory cell infiltration and upregulated expression of inflammatory cytokine genes in colons, coupled with increased serum inflammatory cytokine levels, were observed in all treatments. All results show that both BPA and BPF at the reference dose disrupted Notch/Wnt signaling and intestinal homeostasis, thereby leading to mucosal barrier dysregulation and intestinal inflammation in mice. This is the first study revealing the adverse influences of BPF on mammal intestines and underlying mechanisms for bisphenol-caused intestinal injury.
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Affiliation(s)
- Min Zhu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; Jiangsu Provincial Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing 210036, China
| | - Rongguo Wei
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Clinical Laboratory, The Fifth Affiliated Hospital of Guangxi Medical University, Nanning 530016, China
| | - Yuanyuan Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jinbo Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mengqi Dong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xuanyue Chen
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lin Lv
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhanfen Qin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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13
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Fallah S, Beaulieu JF. Differential influence of YAP1 and TAZ on differentiation of intestinal epithelial cell: A review. Anat Rec (Hoboken) 2022; 306:1054-1061. [PMID: 35648375 DOI: 10.1002/ar.24996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/30/2022] [Accepted: 04/27/2022] [Indexed: 11/06/2022]
Abstract
Intestinal cell stemness, proliferation and differentiation are complex processes all occurring in distinct compartments of the crypt that need to be closely regulated to ensure proper epithelial renewal. The involvement of the Hippo pathway in intestinal epithelial proliferation and regeneration after injury via the regulation of its effectors YAP1 and TAZ has been well-documented over the last decade. The implication of YAP1 and TAZ on intestinal epithelial cell differentiation is less clear. Using intestinal cell models in which the expression of YAP1 and TAZ can be modulated, our group showed that YAP1 inhibits differentiation of the two main intestinal epithelial cell types, goblet and absorptive cells through a specific mechanism involving the repression of prodifferentiation transcription factor CDX2 expression. Further analysis provided evidence that the repressive effect of YAP1 on intestinal differentiation is mediated by regulation of the Hippo pathway by Src family kinase activity. Interestingly, the TAZ paralog does not seem to be involved in this process, which provides another example of the lack of perfect complementarity of the two main Hippo effectors.
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Affiliation(s)
- Sepideh Fallah
- Laboratory of Intestinal Physiopathology, Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Jean-François Beaulieu
- Laboratory of Intestinal Physiopathology, Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
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14
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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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15
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Machida M, Machida T, Kikuchi M, Shimizu A, Ida S, Tawaraya Y, Kato R, Haramaki K, Yama K, Shiga S, Hirafuji M, Iizuka K. Methotrexate mediates the integrity of intestinal stem cells partly through nitric oxide-dependent Wnt/β-catenin signaling in methotrexate-induced rat ileal mucositis. J Pharmacol Sci 2022; 148:281-285. [PMID: 35177206 DOI: 10.1016/j.jphs.2022.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 12/17/2021] [Accepted: 01/05/2022] [Indexed: 11/19/2022] Open
Abstract
This study aimed to elucidate the role of nitric oxide (NO) in intestinal stem cells in methotrexate-induced ileal mucositis in rats. Methotrexate induced the mRNA expressions of the Wnt/β-catenin target genes Wnt3a, Sox9, and Lgr5 and the Wnt-antagonist gene sFRP-1 and the protein expressions of Lgr5 and sFRP-1. Methotrexate also induced Lgr5+ cells and lysozyme+ cells. A non-selective NO inhibitor inhibited the methotrexate induction of Wnt/β-catenin target genes and Lgr5+ cells but enhanced that of sFRP-1 expression. Thus, methotrexate mediates the integrity of intestinal stem cells partly through NO-dependent Wnt/β-catenin signaling and may enhance tolerability to methotrexate-induced injury.
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Affiliation(s)
- Maiko Machida
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Takuji Machida
- Department of Pharmacological Sciences, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan.
| | - Masaki Kikuchi
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Ayaka Shimizu
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Syunsuke Ida
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Yoshiki Tawaraya
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Risa Kato
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Keisuke Haramaki
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Kaori Yama
- Division of Pharmacotherapy, Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido, 006-8590, Japan
| | - Saki Shiga
- Department of Pharmacological Sciences, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan
| | - Masahiko Hirafuji
- Department of Pharmacological Sciences, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan
| | - Kenji Iizuka
- Department of Pharmacological Sciences, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido, Tobetsu, Ishikari, Hokkaido, 061-0293, Japan
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16
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Yu S, Peng HR, Zhang YK, Yin YQ, Zhou JW. Central dopaminergic control of cell proliferation in the colonic epithelium. Neurosci Res 2022; 180:72-82. [DOI: 10.1016/j.neures.2022.02.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 01/10/2023]
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17
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Díaz-Díaz LM, Rodríguez-Villafañe A, García-Arrarás JE. The Role of the Microbiota in Regeneration-Associated Processes. Front Cell Dev Biol 2022; 9:768783. [PMID: 35155442 PMCID: PMC8826689 DOI: 10.3389/fcell.2021.768783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 12/03/2021] [Indexed: 12/12/2022] Open
Abstract
The microbiota, the set of microorganisms associated with a particular environment or host, has acquired a prominent role in the study of many physiological and developmental processes. Among these, is the relationship between the microbiota and regenerative processes in various organisms. Here we introduce the concept of the microbiota and its involvement in regeneration-related cellular events. We then review the role of the microbiota in regenerative models that extend from the repair of tissue layers to the regeneration of complete organs or animals. We highlight the role of the microbiota in the digestive tract, since it accounts for a significant percentage of an animal microbiota, and at the same time provides an outstanding system to study microbiota effects on regeneration. Lastly, while this review serves to highlight echinoderms, primarily holothuroids, as models for regeneration studies, it also provides multiple examples of microbiota-related interactions in other processes in different organisms.
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Affiliation(s)
- Lymarie M Díaz-Díaz
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico
| | | | - José E García-Arrarás
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico
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18
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Ma HC, Zhu YJ, Zhou R, Yu YY, Xiao ZZ, Zhang HB. Lung cancer organoids, a promising model still with long way to go. Crit Rev Oncol Hematol 2022; 171:103610. [DOI: 10.1016/j.critrevonc.2022.103610] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 12/13/2022] Open
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19
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Telocytes: Active Players in the Rainbow Trout ( Oncorhynchus mykiss) Intestinal Stem-Cell Niche. Animals (Basel) 2021; 12:ani12010074. [PMID: 35011180 PMCID: PMC8744786 DOI: 10.3390/ani12010074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 12/15/2021] [Accepted: 12/27/2021] [Indexed: 11/17/2022] Open
Abstract
In order to improve the sustainability of trout farming, it is essential to develop alternatives to fish-based meals that prevent intestinal disorders and support growth performances. Therefore, an accurate knowledge of intestinal morphology and physiology is desirable. We previously described the epithelial component of the intestinal stem-cell (ISC) niche in rainbow trout (Oncorhynchus mykiss), which is one of the most successfully farmed species and a representative model of the salmonids family. This work aims to expand that knowledge by investigating the niche stromal components that contribute to intestinal homeostasis. We analyzed samples belonging to five individuals collected from a local commercial farm. Histological and ultrastructural studies revealed peculiar mesenchymal cells adjacent to the epithelium that generated an intricate mesh spanning from the folds' base to their apex. Their voluminous nuclei, limited cytoplasm and long cytoplasmic projections characterized them as telocytes (TCs). TEM analysis showed the secretion of extracellular vesicles, suggesting their functional implication in cell-to-cell communication. Furthermore, we evaluated the localization of well-defined mouse TC markers (pdgfrα and foxl1) and their relationship with the epithelial component of the niche. TCs establish a direct connection with ISCs and provide short-range signaling, which also indicates their key role as the mesenchymal component of the stem-cell niche in this species. Interestingly, the TC distribution and gene-expression pattern in rainbow trout closely overlapped with those observed in mice, indicating that they have the same functions in both species. These results substantially improve our understanding of the mechanisms regulating intestinal homeostasis and will enable a more detailed evaluation of innovative feed effects.
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20
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Sirakov M, Claret L, Plateroti M. Thyroid Hormone Nuclear Receptor TRα1 and Canonical WNT Pathway Cross-Regulation in Normal Intestine and Cancer. Front Endocrinol (Lausanne) 2021; 12:725708. [PMID: 34956074 PMCID: PMC8705541 DOI: 10.3389/fendo.2021.725708] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 11/16/2021] [Indexed: 12/21/2022] Open
Abstract
A pivotal role of thyroid hormones and their nuclear receptors in intestinal development and homeostasis have been described, whereas their involvement in intestinal carcinogenesis is still controversial. In this perspective article we briefly summarize the recent advances in this field and present new data regarding their functional interaction with one of the most important signaling pathway, such as WNT, regulating intestinal development and carcinogenesis. These complex interactions unveil new concepts and will surely be of importance for translational research.
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Affiliation(s)
- Maria Sirakov
- Department of Biology and Evolution of Marine Organisms, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Leo Claret
- Université de Strasbourg, Inserm, Interface de Recherche fondamentale et Appliquée en Cancérologie (IRFAC)/Unité Mixte de Recherche (UMR)-S1113, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
| | - Michelina Plateroti
- Université de Strasbourg, Inserm, Interface de Recherche fondamentale et Appliquée en Cancérologie (IRFAC)/Unité Mixte de Recherche (UMR)-S1113, Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
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21
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Guan XY, Guan XL, Jiao ZY. Improving therapeutic resistance: beginning with targeting the tumor microenvironment. J Chemother 2021; 34:492-516. [PMID: 34873999 DOI: 10.1080/1120009x.2021.2011661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Cancer is a serious threat to human health and life. The tumor microenvironment (TME) not only plays a key role in the occurrence, development and metastasis of cancer, but also has a profound impact on treatment resistance. To improve and solve this problem, an increasing number of strategies targeting the TME have been proposed, and great progress has been made in recent years. This article reviews the characteristics and functions of the main matrix components of the TME and the mechanisms by which each component affects drug resistance. Furthermore, this article elaborates on targeting the TME as a strategy to treat acquired drug resistance, reduce tumor metastasis, recurrence, and improve efficacy.
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Affiliation(s)
- Xiao-Ying Guan
- Pathology Department, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Xiao-Li Guan
- General Medicine Department, Lanzhou University Second Hospital, Lanzhou, Gansu, China
| | - Zuo-Yi Jiao
- The First Department of General Surgery, Lanzhou University Second Hospital, Lanzhou, Gansu, China
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22
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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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23
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Casini A, Mancinelli R, Mammola CL, Pannarale L, Chirletti P, Onori P, Vaccaro R. Distribution of α-synuclein in normal human jejunum and its relations with the chemosensory and neuroendocrine system. Eur J Histochem 2021; 65. [PMID: 34726359 PMCID: PMC8581552 DOI: 10.4081/ejh.2021.3310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023] Open
Abstract
Alpha-synuclein (α-syn) is a presynaptic neuronal protein and its structural alterations play an important role in the pathogenesis of neurodegenerative diseases, such as Parkinson’s disease (PD). It has been originally described in the brain and aggregated α-syn has also been found in the peripheral nerves including the enteric nervous system (ENS) of PD patients. ENS is a network of neurons and glia found in the gut wall which controls gastrointestinal function independently from the central nervous system. Moreover, two types of epithelial cells are crucial in the creation of an interface between the lumen and the ENS: they are the tuft cells and the enteroendocrine cells (EECs). In addition, the abundant enteric glial cells (EGCs) in the intestinal mucosa play a key role in controlling the intestinal epithelial barrier. Our aim was to localize and characterize the presence of α-syn in the normal human jejunal wall. Surgical specimens of proximal jejunum were collected from patients submitted to pancreaticoduodenectomy and intestinal sections underwent immunohistochemical procedure. Alpha-syn has been found both at the level of the ENS and the epithelial cells. To characterize α-syn immunoreactive epithelial cells, we used markers such as choline acetyltransferase (ChAT), useful for the identification of tuft cells. Then we evaluated the co-presence of α-syn with serotonin (5-HT), expressed in EECs. Finally, we used the low-affinity nerve growth factor receptor (p75NTR), to detect peripheral EGCs. The presence of α-syn has been demonstrated in EECs, but not in the tuft cells. Additionally, p75NTR has been highlighted in EECs of the mucosal layer and co-localized with α-syn in EECs but not with ChAT-positive cells. These findings suggest that α-syn could play a possible role in synaptic transmission of the ENS and may contribute to maintain the integrity of the epithelial barrier of the small intestine through EECs.
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Affiliation(s)
- Arianna Casini
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
| | - Romina Mancinelli
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
| | - Caterina Loredana Mammola
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
| | - Luigi Pannarale
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
| | - Piero Chirletti
- Department of Surgical Sciences, Sapienza University of Rome.
| | - Paolo Onori
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
| | - Rosa Vaccaro
- Department of Anatomical, Histological, Forensic Medicine and Orthopedics Sciences, Sapienza Università of Rome.
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24
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Stewart AS, Schaaf CR, Luff JA, Freund JM, Becker TC, Tufts SR, Robertson JB, Gonzalez LM. HOPX + injury-resistant intestinal stem cells drive epithelial recovery after severe intestinal ischemia. Am J Physiol Gastrointest Liver Physiol 2021; 321:G588-G602. [PMID: 34549599 PMCID: PMC8616590 DOI: 10.1152/ajpgi.00165.2021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Intestinal ischemia is a life-threatening emergency with mortality rates of 50%-80% due to epithelial cell death and resultant barrier loss. Loss of the epithelial barrier occurs in conditions including intestinal volvulus and neonatal necrotizing enterocolitis. Survival depends on effective epithelial repair; crypt-based intestinal epithelial stem cells (ISCs) are the source of epithelial renewal in homeostasis and after injury. Two ISC populations have been described: 1) active ISC [aISC; highly proliferative; leucine-rich-repeat-containing G protein-coupled receptor 5 (LGR5+)-positive or sex-determining region Y-box 9 -antigen Ki67-positive (SOX9+Ki67+)] and 2) reserve ISC [rISC; less proliferative; homeodomain-only protein X positive (HOPX+)]. The contributions of these ISCs have been evaluated both in vivo and in vitro using a porcine model of mesenteric vascular occlusion to understand mechanisms that modulate ISC recovery responses following ischemic injury. In our previously published work, we observed that rISC conversion to an activated state was associated with decreased HOPX expression during in vitro recovery. In the present study, we wanted to evaluate the direct role of HOPX on cellular proliferation during recovery after injury. Our data demonstrated that during early in vivo recovery, injury-resistant HOPX+ cells maintain quiescence. Subsequent early regeneration within the intestinal crypt occurs around 2 days after injury, a period in which HOPX expression decreased. When HOPX was silenced in vitro, cellular proliferation of injured cells was promoted during recovery. This suggests that HOPX may serve a functional role in ISC-mediated regeneration after injury and could be a target to control ISC proliferation.NEW & NOTEWORTHY This paper supports that rISCs are resistant to ischemic injury and likely an important source of cellular renewal following near-complete epithelial loss. Furthermore, we have evidence that HOPX controls ISC activity state and may be a critical signaling pathway during ISC-mediated repair. Finally, we use multiple novel methods to evaluate ISCs in a translationally relevant large animal model of severe intestinal injury and provide evidence for the potential role of rISCs as therapeutic targets.
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Affiliation(s)
- Amy Stieler Stewart
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Cecilia Renee Schaaf
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Jennifer A. Luff
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - John M. Freund
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Thomas C. Becker
- 2Duke Molecular Physiology Institute and Sarah W. Stedman Nutrition and Metabolism Center, Duke University Medical Center, Durham, North Carolina
| | - Sara R. Tufts
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - James B. Robertson
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
| | - Liara M. Gonzalez
- 1College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina
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25
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Modeling Intestinal Stem Cell Function with Organoids. Int J Mol Sci 2021; 22:ijms222010912. [PMID: 34681571 PMCID: PMC8535974 DOI: 10.3390/ijms222010912] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 12/11/2022] Open
Abstract
Intestinal epithelial cells (IECs) are crucial for the digestive process and nutrient absorption. The intestinal epithelium is composed of the different cell types of the small intestine (mainly, enterocytes, goblet cells, Paneth cells, enteroendocrine cells, and tuft cells). The small intestine is characterized by the presence of crypt-villus units that are in a state of homeostatic cell turnover. Organoid technology enables an efficient expansion of intestinal epithelial tissue in vitro. Thus, organoids hold great promise for use in medical research and in the development of new treatments. At present, the cholinergic system involved in IECs and intestinal stem cells (ISCs) are attracting a great deal of attention. Thus, understanding the biological processes triggered by epithelial cholinergic activation by acetylcholine (ACh), which is produced and released from neuronal and/or non-neuronal tissue, is of key importance. Cholinergic signaling via ACh receptors plays a pivotal role in IEC growth and differentiation. Here, we discuss current views on neuronal innervation and non-neuronal control of the small intestinal crypts and their impact on ISC proliferation, differentiation, and maintenance. Since technology using intestinal organoid culture systems is advancing, we also outline an organoid-based organ replacement approach for intestinal diseases.
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26
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Kaji I, Roland JT, Rathan-Kumar S, Engevik AC, Burman A, Goldstein AE, Watanabe M, Goldenring JR. Cell differentiation is disrupted by MYO5B loss through Wnt/Notch imbalance. JCI Insight 2021; 6:e150416. [PMID: 34197342 PMCID: PMC8409988 DOI: 10.1172/jci.insight.150416] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/30/2021] [Indexed: 11/17/2022] Open
Abstract
Functional loss of myosin Vb (MYO5B) induces a variety of deficits in intestinal epithelial cell function and causes a congenital diarrheal disorder, microvillus inclusion disease (MVID). The impact of MYO5B loss on differentiated cell lineage choice has not been investigated. We quantified the populations of differentiated epithelial cells in tamoxifen-induced, epithelial cell–specific MYO5B-knockout (VilCreERT2 Myo5bfl/fl) mice utilizing digital image analysis. Consistent with our RNA-sequencing data, MYO5B loss induced a reduction in tuft cells in vivo and in organoid cultures. Paneth cells were significantly increased by MYO5B deficiency along with expansion of the progenitor cell zone. We further investigated the effect of lysophosphatidic acid (LPA) signaling on epithelial cell differentiation. Intraperitoneal LPA significantly increased tuft cell populations in both control and MYO5B-knockout mice. Transcripts for Wnt ligands were significantly downregulated by MYO5B loss in intestinal epithelial cells, whereas Notch signaling molecules were unchanged. Additionally, treatment with the Notch inhibitor dibenzazepine (DBZ) restored the populations of secretory cells, suggesting that the Notch pathway is maintained in MYO5B-deficient intestine. MYO5B loss likely impairs progenitor cell differentiation in the small intestine in vivo and in vitro, partially mediated by Wnt/Notch imbalance. Notch inhibition and/or LPA treatment may represent an effective therapeutic approach for treatment of MVID.
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Affiliation(s)
- Izumi Kaji
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Joseph T Roland
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sudiksha Rathan-Kumar
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Amy C Engevik
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Andreanna Burman
- Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - Anna E Goldstein
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Masahiko Watanabe
- Department of Anatomy, Faculty of Medicine, Hokkaido University, Sapporo, Japan
| | - James R Goldenring
- Section of Surgical Sciences and.,Epithelial Biology Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Department of Cell and Developmental Biology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA.,Nashville VA Medical Center, Nashville, Tennessee, USA
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27
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Chen S, Wang W, Tan HY, Lu Y, Li Z, Qu Y, Wang N, Wang D. Role of Autophagy in the Maintenance of Stemness in Adult Stem Cells: A Disease-Relevant Mechanism of Action. Front Cell Dev Biol 2021; 9:715200. [PMID: 34414192 PMCID: PMC8369482 DOI: 10.3389/fcell.2021.715200] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 07/15/2021] [Indexed: 01/07/2023] Open
Abstract
Autophagy is an intracellular scavenging mechanism induced to eliminate damaged, denatured, or senescent macromolecular substances and organelles in the body. The regulation of autophagy plays essential roles in the processes of cellular homeostasis and senescence. Dysregulated autophagy is a common feature of several human diseases, including cancers and neurodegenerative disorders. The initiation and development of these disorders have been shown to be associated with the maintenance of disease-specific stem cell compartments. In this review, we summarize recent advances in our understanding of the role of autophagy in the maintenance of stemness. Specifically, we focus on the intersection between autophagy and adult stem cells in the initiation and progression of specific diseases. Accordingly, this review highlights the role of autophagy in stemness maintenance from the perspective of disease-associated mechanisms, which may be fundamental to our understanding of the pathogeneses of human diseases and the development of effective therapies.
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Affiliation(s)
- Shanshan Chen
- School of Life Sciences, Jilin University, Changchun, China
| | - Wenqi Wang
- School of Life Sciences, Jilin University, Changchun, China
| | - Hor-Yue Tan
- Centre for Chinese Herbal Medicine Drug Development, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Yuanjun Lu
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
| | - Zhiping Li
- School of Life Sciences, Jilin University, Changchun, China
| | - Yidi Qu
- School of Life Sciences, Jilin University, Changchun, China
| | - Ning Wang
- School of Chinese Medicine, The University of Hong Kong, Hong Kong, China
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun, China.,Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Jilin Agricultural University, Changchun, China
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28
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Takahashi T, Shiraishi A, Murata J, Matsubara S, Nakaoka S, Kirimoto S, Osawa M. Muscarinic receptor M3 contributes to intestinal stem cell maintenance via EphB/ephrin-B signaling. Life Sci Alliance 2021; 4:4/9/e202000962. [PMID: 34244422 PMCID: PMC8321669 DOI: 10.26508/lsa.202000962] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 12/31/2022] Open
Abstract
Acetylcholine (ACh) signaling through activation of nicotinic and muscarinic ACh receptors regulates expression of specific genes that mediate and sustain proliferation, differentiation, and homeostasis in the intestinal crypts. This signaling plays a pivotal role in the regulation of intestinal stem cell function, but the details have not been clarified. Here, we performed experiments using type 3 muscarinic acetylcholine receptor (M3) knockout mice and their intestinal organoids and report that endogenous ACh affects the size of the intestinal stem niche via M3 signaling. RNA sequencing of crypts identified up-regulation of the EphB/ephrin-B signaling pathway. Furthermore, using an MEK inhibitor (U0126), we found that mitogen-activated protein kinase/extracellular signal-regulated kinase (MAPK/ERK) signaling, which is downstream of EphB/ephrin-B signaling, is activated in M3-deficient crypts. Collectively, M3, EphB/ephrin-B, and the MAPK/ERK signaling cascade work together to maintain the homeostasis of intestinal epithelial cell growth and differentiation following modifications of the cholinergic intestinal niche.
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Affiliation(s)
- Toshio Takahashi
- Suntory Foundation for Life Sciences, Bioorganic Research Institute, Kyoto, Japan
| | - Akira Shiraishi
- Suntory Foundation for Life Sciences, Bioorganic Research Institute, Kyoto, Japan
| | - Jun Murata
- Suntory Foundation for Life Sciences, Bioorganic Research Institute, Kyoto, Japan
| | - Shin Matsubara
- Suntory Foundation for Life Sciences, Bioorganic Research Institute, Kyoto, Japan
| | | | | | - Masatake Osawa
- Department of Regenerative Medicine and Applied Biomedical Sciences, Graduate School of Medicine, Gifu University, Gifu, Japan.,Center for Highly Advanced Integration of Nano and Life Sciences, Gifu University (G-CHAIN), Gifu, Japan
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29
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The Interplay between Nutrition, Innate Immunity, and the Commensal Microbiota in Adaptive Intestinal Morphogenesis. Nutrients 2021; 13:nu13072198. [PMID: 34206809 PMCID: PMC8308283 DOI: 10.3390/nu13072198] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/20/2021] [Accepted: 06/23/2021] [Indexed: 12/15/2022] Open
Abstract
The gastrointestinal tract is a functionally and anatomically segmented organ that is colonized by microbial communities from birth. While the genetics of mouse gut development is increasingly understood, how nutritional factors and the commensal gut microbiota act in concert to shape tissue organization and morphology of this rapidly renewing organ remains enigmatic. Here, we provide an overview of embryonic mouse gut development, with a focus on the intestinal vasculature and the enteric nervous system. We review how nutrition and the gut microbiota affect the adaptation of cellular and morphologic properties of the intestine, and how these processes are interconnected with innate immunity. Furthermore, we discuss how nutritional and microbial factors impact the renewal and differentiation of the epithelial lineage, influence the adaptation of capillary networks organized in villus structures, and shape the enteric nervous system and the intestinal smooth muscle layers. Intriguingly, the anatomy of the gut shows remarkable flexibility to nutritional and microbial challenges in the adult organism.
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30
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miR-802 regulates Paneth cell function and enterocyte differentiation in the mouse small intestine. Nat Commun 2021; 12:3339. [PMID: 34099655 PMCID: PMC8184787 DOI: 10.1038/s41467-021-23298-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Accepted: 04/20/2021] [Indexed: 02/05/2023] Open
Abstract
The intestinal epithelium is a complex structure that integrates digestive, immunological, neuroendocrine, and regenerative functions. Epithelial homeostasis is maintained by a coordinated cross-talk of different epithelial cell types. Loss of integrity of the intestinal epithelium plays a key role in inflammatory diseases and gastrointestinal infection. Here we show that the intestine-enriched miR-802 is a central regulator of intestinal epithelial cell proliferation, Paneth cell function, and enterocyte differentiation. Genetic ablation of mir-802 in the small intestine of mice leads to decreased glucose uptake, impaired enterocyte differentiation, increased Paneth cell function and intestinal epithelial proliferation. These effects are mediated in part through derepression of the miR-802 target Tmed9, a modulator of Wnt and lysozyme/defensin secretion in Paneth cells, and the downstream Wnt signaling components Fzd5 and Tcf4. Mutant Tmed9 mice harboring mutations in miR-802 binding sites partially recapitulate the augmented Paneth cell function of mice lacking miR-802. Our study demonstrates a broad miR-802 network that is important for the integration of signaling pathways of different cell types controlling epithelial homeostasis in the small intestine.
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31
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Lizárraga-Verdugo E, Carmona TG, Ramos-Payan R, Avendaño-Félix M, Bermúdez M, Parra-Niebla M, López-Camarillo C, Fernandez-Figueroa E, Lino-Silva L, Saavedra HA, Vela-Sarmiento I, Ovando RC, Ruíz-García E, Aguilar-Medina M. SOX9 is associated with advanced T-stages of clinical stage II colon cancer in young Mexican patients. Oncol Lett 2021; 22:497. [PMID: 33981359 PMCID: PMC8108287 DOI: 10.3892/ol.2021.12758] [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: 10/20/2020] [Accepted: 04/12/2021] [Indexed: 12/12/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignancies worldwide and includes colon cancer (CC) and rectal cancer (RC). Regarding CC, the development of novel molecular biomarkers for the accurate diagnosis and prognosis, as well as the identification of novel targets for therapeutic intervention, are urgently needed. SRY-related high-mobility group box 9 (SOX9), a transcription factor, is involved in development, and has been associated with the progression of human cancer. However, its underlying clinical and functional effects in CRC have not been fully understood. Therefore, the present study aimed to evaluate the clinical and functional relevance of SOX9 expression in CC. The expression of SOX9 in tumor tissues was evaluated in 97 biopsies from Mexican patients with CC with early-stage I and II disease by immunohistochemistry (IHC). In addition, SOX9 silencing in the HCT116 cell line was performed using specific small interfering RNAs, while downregulation efficiency was verified by reverse transcription-quantitative PCR and immunofluorescence. Spheroid-formation assay was carried out using ultra-low attachment plates. The IHC results showed that SOX9 was upregulated in patients with stage II (91%) and advanced T3 stage (67%) CC. Interestingly, higher SOX9 expression was associated with clinical stage, tumor size and tumor location. Furthermore, increased SOX9 expression was found in relapsed cases with local tumors; however, it was not associated with increased survival probability. Additionally, functional analysis indicated that SOX9 silencing significantly attenuated the sphere-formation capability of HCT116 cells. The present study was the first to evaluate the expression levels of SOX9 in Mexican patients diagnosed with early-stage CC. The aforementioned findings indicated that high SOX9 expression could play an important role in tumorigenesis and be associated with advanced T-stages of clinical-stage II patients, but not with relapse-free survival.
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Affiliation(s)
- Erik Lizárraga-Verdugo
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
| | | | - Rosalío Ramos-Payan
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
| | - Mariana Avendaño-Félix
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
| | - Mercedes Bermúdez
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
| | - Maryelv Parra-Niebla
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
| | - César López-Camarillo
- Oncogenomics Laboratory, Autonomous University of Mexico City, 06720 Mexico City, Mexico
| | - Edith Fernandez-Figueroa
- Department of Computational Genomics Laboratories, National Cancer Institute, 14080 Mexico City, Mexico
| | - Leonardo Lino-Silva
- Department of Pathology, National Cancer Institute, 14080 Mexico City, Mexico
| | | | - Itzel Vela-Sarmiento
- Department of Gastrointestinal Tumors, National Cancer Institute, 14080 Mexico City, Mexico
| | | | - Erika Ruíz-García
- Department of Translational Medicine, National Cancer Institute, 14080 Mexico City, Mexico
| | - Maribel Aguilar-Medina
- Faculty of Chemical and Biological Sciences, Autonomous University of Sinaloa, 80010 Culiacán, Sinaloa, Mexico
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32
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Brunt L, Greicius G, Rogers S, Evans BD, Virshup DM, Wedgwood KCA, Scholpp S. Vangl2 promotes the formation of long cytonemes to enable distant Wnt/β-catenin signaling. Nat Commun 2021; 12:2058. [PMID: 33824332 PMCID: PMC8024337 DOI: 10.1038/s41467-021-22393-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 03/09/2021] [Indexed: 02/01/2023] Open
Abstract
Wnt signaling regulates cell proliferation and cell differentiation as well as migration and polarity during development. However, it is still unclear how the Wnt ligand distribution is precisely controlled to fulfil these functions. Here, we show that the planar cell polarity protein Vangl2 regulates the distribution of Wnt by cytonemes. In zebrafish epiblast cells, mouse intestinal telocytes and human gastric cancer cells, Vangl2 activation generates extremely long cytonemes, which branch and deliver Wnt protein to multiple cells. The Vangl2-activated cytonemes increase Wnt/β-catenin signaling in the surrounding cells. Concordantly, Vangl2 inhibition causes fewer and shorter cytonemes to be formed and reduces paracrine Wnt/β-catenin signaling. A mathematical model simulating these Vangl2 functions on cytonemes in zebrafish gastrulation predicts a shift of the signaling gradient, altered tissue patterning, and a loss of tissue domain sharpness. We confirmed these predictions during anteroposterior patterning in the zebrafish neural plate. In summary, we demonstrate that Vangl2 is fundamental to paracrine Wnt/β-catenin signaling by controlling cytoneme behaviour.
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Affiliation(s)
- Lucy Brunt
- Living Systems Institute, School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Gediminas Greicius
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Sally Rogers
- Living Systems Institute, School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Benjamin D Evans
- Living Systems Institute, School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
- School of Psychological Science, Faculty of Life Sciences, University of Bristol, Bristol, UK
| | - David M Virshup
- Program in Cancer and Stem Cell Biology, Duke-NUS Medical School, Singapore, Singapore
| | - Kyle C A Wedgwood
- Living Systems Institute, School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK
| | - Steffen Scholpp
- Living Systems Institute, School of Biosciences, College of Life and Environmental Sciences, University of Exeter, Exeter, UK.
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33
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Hou Q, Huang J, Ayansola H, Masatoshi H, Zhang B. Intestinal Stem Cells and Immune Cell Relationships: Potential Therapeutic Targets for Inflammatory Bowel Diseases. Front Immunol 2021; 11:623691. [PMID: 33584726 PMCID: PMC7874163 DOI: 10.3389/fimmu.2020.623691] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/03/2020] [Indexed: 12/11/2022] Open
Abstract
The mammalian intestine is the largest immune organ that contains the intestinal stem cells (ISC), differentiated epithelial cells (enterocytes, Paneth cells, goblet cells, tuft cells, etc.), and gut resident-immune cells (T cells, B cells, dendritic cells, innate lymphoid cell, etc.). Inflammatory bowel disease (IBD), a chronic inflammatory disease characterized by mucosa damage and inflammation, threatens the integrity of the intestine. The continuous renewal and repair of intestinal mucosal epithelium after injury depend on ISCs. Inflamed mucosa healing could be a new target for the improvement of clinical symptoms, disease recurrence, and resection-free survival in IBD treated patients. The knowledge about the connections between ISC and immune cells is expanding with the development of in vitro intestinal organoid culture and single-cell RNA sequencing technology. Recent findings implicate that immune cells such as T cells, ILCs, dendritic cells, and macrophages and cytokines secreted by these cells are critical in the regeneration of ISCs and intestinal epithelium. Transplantation of ISC to the inflamed mucosa may be a new therapeutic approach to reconstruct the epithelial barrier in IBD. Considering the links between ISC and immune cells, we predict that the integration of biological agents and ISC transplantation will revolutionize the future therapy of IBD patients.
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Affiliation(s)
- Qihang Hou
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, China
| | - Jingxi Huang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, China
| | - Hammed Ayansola
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, China
| | - Hori Masatoshi
- Department of Veterinary Pharmacology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Bingkun Zhang
- State Key Laboratory of Animal Nutrition, Department of Animal Nutrition & Feed Science, College of Animal Science & Technology, China Agricultural University, Haidian District, Beijing, China
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O'Neill JD, Pinezich MR, Guenthart BA, Vunjak-Novakovic G. Gut bioengineering strategies for regenerative medicine. Am J Physiol Gastrointest Liver Physiol 2021; 320:G1-G11. [PMID: 33174453 PMCID: PMC8112187 DOI: 10.1152/ajpgi.00206.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 10/23/2020] [Accepted: 11/05/2020] [Indexed: 01/31/2023]
Abstract
Gastrointestinal disease burden continues to rise in the United States and worldwide. The development of bioengineering strategies to model gut injury or disease and to reestablish functional gut tissue could expand therapeutic options and improve clinical outcomes. Current approaches leverage a rapidly evolving gut bioengineering toolkit aimed at 1) de novo generation of gutlike tissues at multiple scales for microtissue models or implantable grafts and 2) regeneration of functional gut in vivo. Although significant progress has been made in intestinal organoid cultures and engineered tissues, development of predictive in vitro models and effective regenerative therapies remains challenging. In this review, we survey emerging bioengineering tools and recent methodological advances to identify current challenges and future opportunities in gut bioengineering for disease modeling and regenerative medicine.
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Affiliation(s)
- John D O'Neill
- Department of Biomedical Engineering, Columbia University, New York, New York
- Department of Cell Biology, State University of New York Downstate Medical Center, Brooklyn, New York
| | - Meghan R Pinezich
- Department of Biomedical Engineering, Columbia University, New York, New York
| | - Brandon A Guenthart
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Gordana Vunjak-Novakovic
- Department of Biomedical Engineering, Columbia University, New York, New York
- Department of Medicine, Columbia University Medical Center, New York, New York
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Hayashi M, Watanabe-Asaka T, Nagashio S, Kaidoh M, Yokoyama Y, Maejima D, Kajihara R, Amari K, Arai N, Kawai Y, Ohhashi T. Water intake accelerates ATP release from myofibroblast cells in rats: ATP-mediated podoplanin-dependent control for physiological function and immunity. Am J Physiol Gastrointest Liver Physiol 2021; 320:G54-G65. [PMID: 33146549 DOI: 10.1152/ajpgi.00303.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
We previously demonstrated that water intake increased mesenteric lymph flow and the total flux of IL-22 in rat jejunum. The drained water and the higher permeability of albumin in the jejunal microcirculation contributed to increase the lymph flow and IL-22 transport via the activation of great bulk flow in the jejunal villi. To address the effects of water intake-mediated great bulk flow-dependent mechanical force on jejunal physiological function and immunological regulation of innate lymphoid cells (ILC)-3, we examined the effects of shear stress stimulation on cultured rat myofibroblast cells. Next, we investigated the effects of water intake on podoplanin and IL-22 expressions in cultured human intestinal epithelial cells and rat in vivo jejunal preparations, respectively. Shear stress stimulation of the myofibroblast cells induced ATP release via an activation of cell surface F1/F0 ATP synthase. ATP produced podoplanin expression in the intestinal epithelial cells. Water intake accelerated immunohistochemical expressions of podoplanin and IL-22 in the interepithelial layers and lamina propria of the jejunum. ATP dose-dependently increased IL-22 mRNA expression in ILC-3, which are housed in the lamina propria. Water intake also increased immunohistochemical and mRNA expressions of ecto-nucleoside triphosphate diphosphohydrolases 2 and 5 in jejunal villi. In conclusion, water intake-mediated shear stress stimulation-dependent ATP release from myofibroblast cells maintains higher tissue colloid osmotic pressure in the jejunal microcirculation through podoplanin upregulation in the interepithelial layers. ATP induces IL-22 mRNA expression in ILC-3 in jejunal villi, which may contribute to regulation of mucosal immunity in small intestine.NEW & NOTEWORTHY We investigated effects of shear stress stimulation on cultured myofibroblast cells and water intake on podoplanin and IL-22 expressions in rat jejunal villi. The stimulation induced ATP release from the cells. Water intake accelerated podoplanin and IL-22 expression levels. ATP increased IL-22 mRNA expression in innate lymphoid cells (ILC)-3. Hence, water intake maintains higher osmotic pressure in the jejunal villi through ATP release and podoplanin upregulation. Water intake may regulate the mucosal immunity.
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Affiliation(s)
- Moyuru Hayashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Tomomi Watanabe-Asaka
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Sachiho Nagashio
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Maki Kaidoh
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yumiko Yokoyama
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Daisuke Maejima
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
| | - Ryo Kajihara
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Kei Amari
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
| | - Nariaki Arai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Department of Anesthesiology and Resuscitology, Shinshu University School of Medicine, Matsumoto, Japan
| | - Yoshiko Kawai
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan.,Division of Physiology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Toshio Ohhashi
- Department of Innovation of Medical and Health Sciences Research, Shinshu University School of Medicine, Matsumoto, Japan
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Chen Q, Suzuki K, Sifuentes-Dominguez L, Miyata N, Song J, Lopez A, Starokadomskyy P, Gopal P, Dozmorov I, Tan S, Ge B, Burstein E. Paneth cell-derived growth factors support tumorigenesis in the small intestine. Life Sci Alliance 2020; 4:4/3/e202000934. [PMID: 33372038 PMCID: PMC7772774 DOI: 10.26508/lsa.202000934] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/09/2020] [Accepted: 12/11/2020] [Indexed: 12/17/2022] Open
Abstract
Paneth cells, known for their production of antimicrobial peptides and growth factors in the gut epithelium, are found to play a key role in intestinal tumor formation through secretion of Wnt3. Paneth cells (PCs) are small intestinal epithelial cells that secrete antimicrobial peptides and growth factors, such as Wnt ligands. Intriguingly, the context in which PC-derived Wnt secretion is relevant in vivo remains unknown as intestinal epithelial ablation of Wnt does not affect homeostatic proliferation or restitution after irradiation injury. Considering the importance of growth factors in tumor development, we explored here the role of PCs in intestinal carcinogenesis using a genetic model of PC depletion through conditional expression of diphtheria toxin-α subunit. PC depletion in ApcMin mice impaired adenoma development in the small intestine and led to decreased Wnt3 expression in small bowel adenomas. To determine if PC-derived Wnt3 was required for adenoma development, we examined tumor formation after PC-specific ablation of Wnt3. We found that this was sufficient to decrease small intestinal adenoma formation; moreover, organoids derived from these tumors displayed slower growth capacity. Overall, we report that PC-derived Wnt3 is required to sustain early tumorigenesis in the small bowel and identify a clear role for PC-derived Wnt production in intestinal pathology.
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Affiliation(s)
- Qing Chen
- Department of General Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China.,Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Kohei Suzuki
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Luis Sifuentes-Dominguez
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA.,Department of Pediatrics, UT Southwestern Medical Center, Dallas, TX, USA
| | - Naoteru Miyata
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Jie Song
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Adam Lopez
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Petro Starokadomskyy
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Purva Gopal
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Igor Dozmorov
- Department of Immunology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Shuai Tan
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA
| | - Bujun Ge
- Department of General Surgery, Shanghai Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ezra Burstein
- Department of Internal Medicine, University of Texas (UT) Southwestern Medical Center, Dallas, TX, USA .,Department of Molecular Biology, UT Southwestern Medical Center, Dallas, TX, USA
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Gazit VA, Swietlicki EA, Liang MU, Surti A, McDaniel R, Geisman M, Alvarado DM, Ciorba MA, Bochicchio G, Ilahi O, Kirby J, Symons WJ, Davidson NO, Levin MS, Rubin DC. Stem cell and niche regulation in human short bowel syndrome. JCI Insight 2020; 5:137905. [PMID: 33141758 PMCID: PMC7714413 DOI: 10.1172/jci.insight.137905] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 10/28/2020] [Indexed: 12/20/2022] Open
Abstract
Loss of functional small bowel surface area following surgical resection for disorders such as Crohn’s disease, intestinal ischemic injury, radiation enteritis, and in children, necrotizing enterocolitis, atresia, and gastroschisis, may result in short bowel syndrome, with attendant high morbidity, mortality, and health care costs in the United States. Following resection, the remaining small bowel epithelium mounts an adaptive response, resulting in increased crypt cell proliferation, increased villus height, increased crypt depth, and enhanced nutrient and electrolyte absorption. Although these morphologic and functional changes are well described in animal models, the adaptive response in humans is less well understood. Clinically the response is unpredictable and often inadequate. Here we address the hypotheses that human intestinal stem cell populations are expanded and that the stem cell niche is regulated following massive gut resection in short bowel syndrome (SBS). We use intestinal enteroid cultures from patients with SBS to show that the magnitude and phenotype of the adaptive stem cell response are both regulated by stromal niche cells, including intestinal subepithelial myofibroblasts, which are activated by intestinal resection to enhance epithelial stem and proliferative cell responses. Our data suggest that myofibroblast regulation of bone morphogenetic protein signaling pathways plays a role in the gut adaptive response after resection. LGR5+ stem cells are expanded and BMP signaling regulates the stem cell niche in human short bowel syndrome.
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Affiliation(s)
- Vered A Gazit
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | | | - Miranda U Liang
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | - Adam Surti
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | - Raechel McDaniel
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | - Mackenzie Geisman
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | - David M Alvarado
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | - Matthew A Ciorba
- Division of Gastroenterology, John T. Milliken Department of Medicine
| | | | | | | | | | - Nicholas O Davidson
- Division of Gastroenterology, John T. Milliken Department of Medicine.,Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Marc S Levin
- Division of Gastroenterology, John T. Milliken Department of Medicine.,Veterans Affairs Medical Center, St. Louis, Missouri, USA
| | - Deborah C Rubin
- Division of Gastroenterology, John T. Milliken Department of Medicine.,Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA
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Tsakiris N, Fauvet F, Ruby S, Puisieux A, Paquot A, Muccioli GG, Vigneron AM, Préat V. Combined nanomedicines targeting colorectal cancer stem cells and cancer cells. J Control Release 2020; 326:387-395. [DOI: 10.1016/j.jconrel.2020.07.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 12/12/2022]
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McCarthy N, Kraiczy J, Shivdasani RA. Cellular and molecular architecture of the intestinal stem cell niche. Nat Cell Biol 2020; 22:1033-1041. [PMID: 32884148 DOI: 10.1038/s41556-020-0567-z] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 07/29/2020] [Indexed: 12/23/2022]
Abstract
Intestinal stem and progenitor cells replicate and differentiate in distinct compartments, influenced by Wnt, BMP, and other subepithelial cues. The cellular sources of these signals were long obscure because intestinal mesenchyme was insufficiently characterised. In this Review, we discuss how recent mRNA profiles of mouse and human intestinal submucosa, coupled with fine-resolution microscopy and gene and cell disruptions, reveal a coherent picture of an organised tissue carrying cells with distinct molecular properties and functions.
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Affiliation(s)
- Neil McCarthy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Judith Kraiczy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA.,Department of Medicine, Harvard Medical School, Boston, MA, USA
| | - Ramesh A Shivdasani
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA. .,Department of Medicine, Harvard Medical School, Boston, MA, USA.
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40
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Fallah S, Beaulieu JF. The Hippo Pathway Effector YAP1 Regulates Intestinal Epithelial Cell Differentiation. Cells 2020; 9:cells9081895. [PMID: 32823612 PMCID: PMC7463744 DOI: 10.3390/cells9081895] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 07/31/2020] [Accepted: 08/11/2020] [Indexed: 12/15/2022] Open
Abstract
The human intestine is covered by epithelium, which is continuously replaced by new cells provided by stem cells located at the bottom of the glands. The maintenance of intestinal stem cells is supported by a niche which is composed of several signaling proteins including the Hippo pathway effectors YAP1/TAZ. The role of YAP1/TAZ in cell proliferation and regeneration is well documented but their involvement on the differentiation of intestinal epithelial cells is unclear. In the present study, the role of YAP1/TAZ on the differentiation of intestinal epithelial cells was investigated using the HT29 cell line, the only multipotent intestinal cell line available, with a combination of knockdown approaches. The expression of intestinal differentiation cell markers was tested by qPCR, Western blot, indirect immunofluorescence and electron microscopy analyses. The results show that TAZ is not expressed while the abolition of YAP1 expression led to a sharp increase in goblet and absorptive cell differentiation and reduction of some stem cell markers. Further studies using double knockdown experiments revealed that most of these effects resulting from YAP1 abolition are mediated by CDX2, a key intestinal cell transcription factor. In conclusion, our results indicate that YAP1/TAZ negatively regulate the differentiation of intestinal epithelial cells through the inhibition of CDX2 expression.
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Affiliation(s)
- Sepideh Fallah
- Laboratory of Intestinal Physiopathology, Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
| | - Jean-François Beaulieu
- Laboratory of Intestinal Physiopathology, Department of Immunology and Cell Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada;
- Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
- Correspondence:
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41
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Lau HCH, Kranenburg O, Xiao H, Yu J. Organoid models of gastrointestinal cancers in basic and translational research. Nat Rev Gastroenterol Hepatol 2020; 17:203-222. [PMID: 32099092 DOI: 10.1038/s41575-019-0255-2] [Citation(s) in RCA: 109] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/11/2019] [Indexed: 12/24/2022]
Abstract
Cancer is a major public health problem worldwide. Gastrointestinal cancers account for approximately one-third of the total global cancer incidence and mortality. Historically, the mechanisms of tumour initiation and progression in the gastrointestinal tract have been studied using cancer cell lines in vitro and animal models. Traditional cell culture methods are associated with a strong selection of aberrant genomic variants that no longer reflect the original tumours in terms of their (metastatic) behaviour or response to therapy. Organoid technology has emerged as a powerful alternative method for culturing gastrointestinal tumours and the corresponding normal tissues in a manner that preserves their genetic, phenotypic and behavioural traits. Importantly, accumulating evidence suggests that organoid cultures have great value in predicting the outcome of therapy in individual patients. Herein, we review the current literature on organoid models of the most common gastrointestinal cancers, including colorectal cancer, gastric cancer, oesophageal cancer, liver cancer and pancreatic cancer, and their value in modelling tumour initiation, metastatic progression and therapy response. We also explore the limitations of current organoid models and discuss how they could be improved to maximally benefit basic and translational research in the future, especially in the fields of drug discovery and personalized medicine.
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Affiliation(s)
- Harry Cheuk Hay Lau
- Institute of Digestive Disease, Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Onno Kranenburg
- UMC Utrecht Cancer Center, Utrecht Platform for Organoid Technology, Utrecht University, Utrecht, Netherlands
| | - Haipeng Xiao
- Department of Endocrinology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jun Yu
- Institute of Digestive Disease, Department of Medicine and Therapeutics, State Key Laboratory of Digestive Disease, Li Ka Shing Institute of Health Sciences, CUHK Shenzhen Research Institute, The Chinese University of Hong Kong, Shatin, Hong Kong.
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Dun Y, Chen J, Liu J, Guo Y, Zhang C, Yuan D. Changes of Wnt/β-catenin signalling, BMP2, and BMP4 in the jejunum during ageing in rats. Arab J Gastroenterol 2020; 21:43-48. [PMID: 32241700 DOI: 10.1016/j.ajg.2019.12.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 12/19/2019] [Accepted: 12/22/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND AND STUDY AIMS The renewal of intestinal epithelium is maintained by intestinal stem cells (ISCs). Studies have found an age-dependent increase of Esg+/Dl+ progenitor cells in the midgut of Drosophila. However, changes of ISCs and the molecular regulation in mammalian animals with age are yet unknown. The aim of this study was to find out the changes of ISCs and molecular regulation in mammalian animals during the process of ageing. MATERIAL AND METHODS Thirty Sprague-Dawley rats were divided into three groups: young (3 months old), adult (6 months old), and ageing (24 months old). Levels of PCNA, Bmi1, β-catenin and BMP4 were examined by Immunohistochemistry staining. Levels of Bmi1, GSK-3β, Dkk1 and BMP2 were determined by Western Blot. RESULTS Our results showed that the proliferation of ISCs was decreased and the number of intestinal stem cells declined in ageing rats. The niches of ISCs, including Wnt signalling pathway and some proteins of Bone morphogenetic protein (BMP) signalling pathway, were downregulated in the jejunum of ageing rats. CONCLUSION Our study indicated that age-related decreased proliferation of intestinal stem cells in the jejunum could be associated with the alleviation of niches, including Wnt signalling pathway and some proteins of BMP signalling pathway.
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Affiliation(s)
- Yaoyan Dun
- Medical College of China Three Gorges University, Yichang 443002, China
| | - Jing Chen
- Medical College of China Three Gorges University, Yichang 443002, China
| | - Jie Liu
- Medical College of China Three Gorges University, Yichang 443002, China
| | - Yuhui Guo
- Medical College of China Three Gorges University, Yichang 443002, China
| | - Changcheng Zhang
- Medical College of China Three Gorges University, Yichang 443002, China.
| | - Ding Yuan
- Medical College of China Three Gorges University, Yichang 443002, China.
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McCarthy N, Manieri E, Storm EE, Saadatpour A, Luoma AM, Kapoor VN, Madha S, Gaynor LT, Cox C, Keerthivasan S, Wucherpfennig K, Yuan GC, de Sauvage FJ, Turley SJ, Shivdasani RA. Distinct Mesenchymal Cell Populations Generate the Essential Intestinal BMP Signaling Gradient. Cell Stem Cell 2020; 26:391-402.e5. [PMID: 32084389 DOI: 10.1016/j.stem.2020.01.008] [Citation(s) in RCA: 195] [Impact Index Per Article: 48.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/27/2019] [Accepted: 01/15/2020] [Indexed: 12/13/2022]
Abstract
Intestinal stem cells (ISCs) are confined to crypt bottoms and their progeny differentiate near crypt-villus junctions. Wnt and bone morphogenic protein (BMP) gradients drive this polarity, and colorectal cancer fundamentally reflects disruption of this homeostatic signaling. However, sub-epithelial sources of crucial agonists and antagonists that organize this BMP gradient remain obscure. Here, we couple whole-mount high-resolution microscopy with ensemble and single-cell RNA sequencing (RNA-seq) to identify three distinct PDGFRA+ mesenchymal cell types. PDGFRA(hi) telocytes are especially abundant at the villus base and provide a BMP reservoir, and we identified a CD81+ PDGFRA(lo) population present just below crypts that secretes the BMP antagonist Gremlin1. These cells, referred to as trophocytes, are sufficient to expand ISCs in vitro without additional trophic support and contribute to ISC maintenance in vivo. This study reveals intestinal mesenchymal structure at fine anatomic, molecular, and functional detail and the cellular basis for a signaling gradient necessary for tissue self-renewal.
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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
| | - 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
| | - Elaine E Storm
- Department of Molecular Oncology, Genentech, South San Francisco, CA 94080, USA
| | - Assieh Saadatpour
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Adrienne M Luoma
- Department of Cancer Immunology and Virology, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Immunology, Harvard Medical School, Boston, MA 02115, USA
| | - Varun N Kapoor
- Department of Cancer Immunology, Genentech, South San Francisco, CA 94080, USA
| | - Shariq Madha
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Liam T Gaynor
- Department of Medical Oncology and Center for Functional Cancer Epigenetics, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA
| | - Christian Cox
- Department of Cancer Immunology, Genentech, South San Francisco, CA 94080, USA
| | - Shilpa Keerthivasan
- Department of Cancer Immunology, Genentech, South San Francisco, CA 94080, USA
| | - Kai Wucherpfennig
- Department of Molecular Oncology, Genentech, South San Francisco, CA 94080, USA; Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Guo-Cheng Yuan
- Department of Data Sciences, Dana-Farber Cancer Institute, Boston, MA 02215, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; Harvard Stem Cell Institute, Cambridge, MA 02139, USA
| | | | - Shannon J Turley
- Department of Cancer Immunology, Genentech, South San Francisco, CA 94080, 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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Middelhoff M, Nienhüser H, Valenti G, Maurer HC, Hayakawa Y, Takahashi R, Kim W, Jiang Z, Malagola E, Cuti K, Tailor Y, Zamechek LB, Renz BW, Quante M, Yan KS, Wang TC. Prox1-positive cells monitor and sustain the murine intestinal epithelial cholinergic niche. Nat Commun 2020; 11:111. [PMID: 31913277 PMCID: PMC6949263 DOI: 10.1038/s41467-019-13850-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 11/26/2019] [Indexed: 02/08/2023] Open
Abstract
The enteric neurotransmitter acetylcholine governs important intestinal epithelial secretory and immune functions through its actions on epithelial muscarinic Gq-coupled receptors such as M3R. Its role in the regulation of intestinal stem cell function and differentiation, however, has not been clarified. Here, we find that nonselective muscarinic receptor antagonism in mice as well as epithelial-specific ablation of M3R induces a selective expansion of DCLK1-positive tuft cells, suggesting a model of feedback inhibition. Cholinergic blockade reduces Lgr5-positive intestinal stem cell tracing and cell number. In contrast, Prox1-positive endocrine cells appear as primary sensors of cholinergic blockade inducing the expansion of tuft cells, which adopt an enteroendocrine phenotype and contribute to increased mucosal levels of acetylcholine. This compensatory mechanism is lost with acute irradiation injury, resulting in a paucity of tuft cells and acetylcholine production. Thus, enteroendocrine tuft cells appear essential to maintain epithelial homeostasis following modifications of the cholinergic intestinal niche.
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Affiliation(s)
- Moritz Middelhoff
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Henrik Nienhüser
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Giovanni Valenti
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - H Carlo Maurer
- Klinikum rechts der Isar, II. Medizinische Klinik, Technische Universität München, 81675, Munich, Germany
| | - Yoku Hayakawa
- Graduate School of Medicine, Department of Gastroenterology, The University of Tokyo, Tokyo, 113-0033, Japan
| | - Ryota Takahashi
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Woosook Kim
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Zhengyu Jiang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Ermanno Malagola
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Krystle Cuti
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Yagnesh Tailor
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Leah B Zamechek
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
| | - Bernhard W Renz
- Klinik für Allgemein-, Viszeral- und Transplantationschirurgie, Ludwig-Maximilians-Universität München, 81377, Munich, Germany
| | - Michael Quante
- Klinikum rechts der Isar, II. Medizinische Klinik, Technische Universität München, 81675, Munich, Germany
| | - Kelley S Yan
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA
- Department of Genetics and Development, Columbia University Medical Center, New York, NY, 10032, USA
| | - Timothy C Wang
- Division of Digestive and Liver Diseases, Department of Medicine, Columbia University Medical Center, New York, NY, 10032, USA.
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Lu Z, Xie Y, Huang H, Jiang K, Zhou B, Wang F, Chen T. Hair follicle stem cells regulate retinoid metabolism to maintain the self-renewal niche for melanocyte stem cells. eLife 2020; 9:e52712. [PMID: 31898934 PMCID: PMC6970533 DOI: 10.7554/elife.52712] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/03/2020] [Indexed: 12/18/2022] Open
Abstract
Metabolites are major biological parameters sensed by many cell types in vivo, whether they function as signaling mediators of SC and niche cross talk to regulate tissue regeneration is largely unknown. We show here that deletion of the Notch pathway co-factor RBP-J specifically in mouse HFSCs triggers adjacent McSCs to precociously differentiate in their shared niche. Transcriptome screen and in vivo functional studies revealed that the elevated level of retinoic acid (RA) caused by de-repression of RA metabolic process genes as a result of RBP-J deletion in HFSCs triggers ectopic McSCs differentiation in the niche. Mechanistically the increased level of RA sensitizes McSCs to differentiation signal KIT-ligand by increasing its c-Kit receptor protein level in vivo. Using genetic approach, we further pinpointed HFSCs as the source of KIT-ligand in the niche. We discover that HFSCs regulate the metabolite RA level in vivo to allow self-renewal of neighboring McSCs.
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Affiliation(s)
- Zhiwei Lu
- Peking Union Medical CollegeBeijingChina
- National Institute of Biological SciencesBeijingChina
| | - Yuhua Xie
- National Institute of Biological SciencesBeijingChina
| | - Huanwei Huang
- National Institute of Biological SciencesBeijingChina
| | - Kaiju Jiang
- National Institute of Biological SciencesBeijingChina
| | - Bin Zhou
- Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological Sciences, University of Chinese Academy of SciencesBeijingChina
| | - Fengchao Wang
- National Institute of Biological SciencesBeijingChina
| | - Ting Chen
- National Institute of Biological SciencesBeijingChina
- Tsinghua Institute of Multidisciplinary Biomedical ResearchTsinghua UniversityBeijingChina
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Dicarlo M, Teti G, Verna G, Liso M, Cavalcanti E, Sila A, Raveenthiraraj S, Mastronardi M, Santino A, Serino G, Lippolis A, Sobolewski A, Falconi M, Chieppa M. Quercetin Exposure Suppresses the Inflammatory Pathway in Intestinal Organoids from Winnie Mice. Int J Mol Sci 2019; 20:ijms20225771. [PMID: 31744123 PMCID: PMC6888448 DOI: 10.3390/ijms20225771] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/04/2019] [Accepted: 11/14/2019] [Indexed: 12/18/2022] Open
Abstract
Inflammatory bowel diseases (IBDs) are chronic and relapsing immune disorders that result, or possibly originate, from epithelial barrier defects. Intestinal organoids are a new reliable tool to investigate epithelial response in models of chronic inflammation. We produced organoids from the ulcerative colitis murine model Winnie to explore if the chronic inflammatory features observed in the parental intestine were preserved by the organoids. Furthermore, we investigated if quercetin administration to in vitro cultured organoids could suppress LPS-induced inflammation in wild-type organoids (WT-organoids) and spontaneous inflammation in ulcerative colitis organoids (UC-organoids). Our data demonstrate that small intestinal organoids obtained from Winnie mice retain the chronic intestinal inflammatory features characteristic of the parental tissue. Quercetin administration was able to suppress inflammation both in UC-organoids and in LPS-treated WT-organoids. Altogether, our data demonstrate that UC-organoids are a reliable experimental system for investigating chronic intestinal inflammation and pharmacological responses.
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Affiliation(s)
- Manuela Dicarlo
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
- Correspondence: (M.D.); (M.C.); Tel.: +39-089-233463 (M.C.)
| | - Gabriella Teti
- Department of Biomedical and Neuromotor Sciences-DBNS, Università di Bologna, Via Irnerio 48, 40126 Bologna, Italy; (G.T.); (M.F.)
| | - Giulio Verna
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Marina Liso
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Elisabetta Cavalcanti
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Annamaria Sila
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Sathuwarman Raveenthiraraj
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK; (S.R.); (A.S.)
| | - Mauro Mastronardi
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Angelo Santino
- ISPA-CNR, Institute of Science of Food Production, C.N.R. Unit of Lecce, 73100 Lecce, Italy;
| | - Grazia Serino
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Antonio Lippolis
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
| | - Anastasia Sobolewski
- School of Pharmacy, University of East Anglia, Norwich Research Park, Norwich NR4 7TJ, UK; (S.R.); (A.S.)
| | - Mirella Falconi
- Department of Biomedical and Neuromotor Sciences-DBNS, Università di Bologna, Via Irnerio 48, 40126 Bologna, Italy; (G.T.); (M.F.)
| | - Marcello Chieppa
- National Institute of Gastroenterology “S. de Bellis”, Institute of Research, 70013 Castellana Grotte (BA), Italy; (G.V.); (M.L.); (E.C.); (A.S.); (M.M.); (G.S.); (A.L.)
- Department of Immunology and Cell Biology, European Biomedical Research Institute of Salerno (EBRIS), 84125 Salerno, Italy
- Correspondence: (M.D.); (M.C.); Tel.: +39-089-233463 (M.C.)
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Ribeiro Franco PI, Rodrigues AP, de Menezes LB, Pacheco Miguel M. Tumor microenvironment components: Allies of cancer progression. Pathol Res Pract 2019; 216:152729. [PMID: 31735322 DOI: 10.1016/j.prp.2019.152729] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/06/2019] [Accepted: 11/10/2019] [Indexed: 12/12/2022]
Abstract
Cancer is a disease that affects millions of individuals worldwide and has a great impact on public health. Therefore, the study of tumor biology and an understanding of how the components of the tumor microenvironment behave and interact is extremely important for cancer research. Factors expressed by the components of the tumor microenvironment and induce angiogenesis have important roles in the onset and progression of the tumor. These components are represented by the extracellular matrix, fibroblasts, adipocytes, immune cells, and macrophages, besides endothelial cells, which modulate tumor cells and the tumor microenvironment to favor survival and the progression of cancer. The characteristics and function of the main stromal components and their mechanisms of interaction with the tumor cells that contribute to progression, tumor invasion, and tumor spread will be addressed in this review. Furthermore, reviewing these components is expected to indicate their importance as possible prognostic markers and therapeutic targets.
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Affiliation(s)
- Pablo Igor Ribeiro Franco
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - Arthur Perillo Rodrigues
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | | | - Marina Pacheco Miguel
- Escola de Veterinária e Zootecnia, Programa de Pós-Graduação em Ciência Animal, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Qin HY, Xavier Wong HL, Zang KH, Li X, Bian ZX. Enterochromaffin cell hyperplasia in the gut: Factors, mechanism and therapeutic clues. Life Sci 2019; 239:116886. [PMID: 31678286 DOI: 10.1016/j.lfs.2019.116886] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/16/2019] [Indexed: 02/08/2023]
Abstract
Enterochromaffin (EC) cell is the main cell type that responsible for 5-hydroxytryptamine (5-HT) synthesis, storage and release of the gut. Intestinal 5-HT play a key role in visceral sensation, intestinal motility and permeability, EC cell hyperplasia and increased 5-HT bioavailability in the gut have been found to be involved in the symptoms generation of irritable bowel syndrome and inflammatory bowel disease. EC cells originate from intestinal stem cells, the interaction between proliferation and differentiation signals on intestinal stem cells enable EC cell number to be regulated in a normal level. This review focuses on the impact factors, pathogenesis mechanisms, and therapeutic clues for intestinal EC cells hyperplasia, and showed that EC cell hyperplasia was observed under the condition of physiological stress, intestinal infection or intestinal inflammation, the disordered proliferation and/or differentiation of intestinal stem cells as well as their progenitor cells all contribute to the pathogenesis of intestinal EC cell hyperplasia. The altered intestinal niche, i.e. increased corticotrophin releasing factor (CRF) signal, elevated nerve growth factor (NGF) signal, and Th2-dominant cytokines production, has been found to have close correlation with intestinal EC cell hyperplasia. Currently, CRF receptor antagonist, nuclear factor-κB inhibitor, and NGF receptor neutralizing antibody have been proved useful to attenuate intestinal EC cell hyperplasia, which may provide a promising clue for the therapeutic strategy in EC cell hyperplasia related diseases.
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Affiliation(s)
- Hong-Yan Qin
- Department of Pharmacy, First Hospital of Lanzhou University, Lanzhou, China
| | - Hoi Leong Xavier Wong
- Institute of Brain and Gut Axis (IBAG), Centre of Clinical Research for Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - Kai-Hong Zang
- College of Pharmacy, Gansu University of Traditional Chinese Medicine, Lanzhou, China
| | - Xun Li
- Fifth Department of General Surgery, First Hospital of Lanzhou University, Lanzhou, China; Key Laboratory of Biotherapy and Regenerative Medicine of Gansu Province, China.
| | - Zhao-Xiang Bian
- Institute of Brain and Gut Axis (IBAG), Centre of Clinical Research for Chinese Medicine, School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
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Zhu M, Qin YC, Gao CQ, Yan HC, Li XG, Wang XQ. Extracellular Glutamate-Induced mTORC1 Activation via the IR/IRS/PI3K/Akt Pathway Enhances the Expansion of Porcine Intestinal Stem Cells. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:9510-9521. [PMID: 31382738 DOI: 10.1021/acs.jafc.9b03626] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Glutamate (Glu) is a critical nutritional regulator of intestinal epithelial homeostasis. In addition, intestinal stem cells (ISCs) at crypt bases are known to play important roles in maintaining the renewal and homeostasis of the intestinal epithelium, and the aspects of communication between Glu and ISCs are still unknown. Here, we identify Glu and mammalian target of rapamycin complex 1 (mTORC1) as essential regulators of ISC expansion. The results showed that extracellular Glu promoted ISC expansion, indicated by increased intestinal organoid forming efficiency and budding efficiency as well as cell proliferation marker Ki67 immunofluorescence and differentiation marker Keratin 20 (KRT20) expression. Moreover, the insulin receptor (IR) mediating phosphorylation of the insulin receptor substrate (IRS) and downstream signaling phosphoinositide 3-kinase (PI3K)/protein kinase B (Akt) pathway was involved in this response in ISCs. As expected, Glu-induced mTORC1 signaling activation was observed in the intestinal porcine enterocyte cell line (IPEC-J2), and Glu activated the PI3K/Akt/mTORC1 pathway. Accordingly, PI3K inhibition partially suppressed Glu-induced mTORC1 activation. In addition, Glu increased the phosphorylation levels of IR and IRS, and inhibiting IR downregulated the IRS/PI3K/Akt pathway. Collectively, our findings first indicate that extracellular Glu activates mTORC1 via the IR/IRS/PI3K/Akt pathway and stimulates ISC expansion, providing a new perspective for regulating the growth and health of the intestinal epithelium.
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Affiliation(s)
- Min Zhu
- College of Animal Science , South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry , Guangzhou 510642 , China
| | - Ying-Chao Qin
- College of Animal Science , South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry , Guangzhou 510642 , China
| | - Chun-Qi Gao
- College of Animal Science , South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry , Guangzhou 510642 , China
| | - Hui-Chao Yan
- College of Animal Science , South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry , Guangzhou 510642 , China
| | - Xiang-Guang Li
- Department of Pharmaceutical Engineering, School of Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou 510006 , China
| | - Xiu-Qi Wang
- College of Animal Science , South China Agricultural University/Guangdong Provincial Key Laboratory of Animal Nutrition Control/National Engineering Research Center for Breeding Swine Industry , Guangzhou 510642 , China
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50
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Jiang Y, Zhu D, Liu W, Qin Q, Fang Z, Pan Z. Hedgehog pathway inhibition causes primary follicle atresia and decreases female germline stem cell proliferation capacity or stemness. Stem Cell Res Ther 2019; 10:198. [PMID: 31277696 PMCID: PMC6612207 DOI: 10.1186/s13287-019-1299-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Revised: 05/23/2019] [Accepted: 06/07/2019] [Indexed: 02/07/2023] Open
Abstract
Background Follicle depletion is one of the causes of premature ovarian failure (POF) and primary ovarian insufficiency (POI). Hence, maintenance of a certain number of female germline stem cells (FGSCs) is optimal to produce oocytes and replenish the primordial follicle pool. The mechanism that regulates proliferation or stemness of FGSCs could contribute to restoring ovarian function, but it remains uncharacterized in postnatal mammalian ovaries. This study aims to investigate the mechanism by which inhibiting the activity of the hedgehog (Hh) signaling pathway regulates follicle development and FGSC proliferation. Methods and results To understand the role of the Hh pathway in ovarian aging, we measured Hh signaling activity at different reproductive ages and the correlation between them in physiological and pathological mice. Furthermore, we evaluated the follicle number and development and the changes in FGSC proliferation or stemness after blocking the Hh pathway in vitro and in vivo. In addition, we aimed to explain one of the mechanisms for the FGSC phenotype changes induced by treatment with the Hh pathway-specific inhibitor GANT61 via oxidative stress and apoptosis. The results show that the activity of Hh signaling is decreased in the ovaries in physiological aging and POF models, which is consistent with the trend of expression levels of the germline stem cell markers Mvh and Oct4. In vitro, blocking the Hh pathway causes follicular developmental disorders and depletes ovarian germ cells and FGSCs after treating ovaries with GANT61. The proliferation or stemness of cultured primary FGSCs is reduced when Hh activity is blocked. Our results show that the antioxidative enzyme level and the ratio of Bcl-2/Bax decrease, the expression level of caspase 3 increases, the mitochondrial membrane potential is abnormal, and ROS accumulate in this system. Conclusions We observed that the inhibition of the Hh signaling pathway with GANT61 could reduce primordial follicle number and decrease FGSC reproductive capacity or stemness through oxidative damage and apoptosis. Electronic supplementary material The online version of this article (10.1186/s13287-019-1299-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yu Jiang
- Medical College, Nanchang University, Nanchang, Jiangxi Province, China
| | - Dantian Zhu
- Medical College, Nanchang University, Nanchang, Jiangxi Province, China
| | - Wenfeng Liu
- Medical College, Nanchang University, Nanchang, Jiangxi Province, China
| | - Qiushi Qin
- Medical College, Nanchang University, Nanchang, Jiangxi Province, China
| | - Zhi Fang
- Medical College, Nanchang University, Nanchang, Jiangxi Province, China
| | - Zezheng Pan
- Faculty of Basic Medical Science, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China. .,Medical College, Nanchang University, Nanchang, Jiangxi Province, China.
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