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Pereira F, Fernández-Barral A, Larriba MJ, Barbáchano A, González-Sancho JM. From molecular basis to clinical insights: a challenging future for the vitamin D endocrine system in colorectal cancer. FEBS J 2024; 291:2485-2518. [PMID: 37699548 DOI: 10.1111/febs.16955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/03/2023] [Accepted: 09/11/2023] [Indexed: 09/14/2023]
Abstract
Colorectal cancer (CRC) is one of the most life-threatening neoplasias in terms of incidence and mortality worldwide. Vitamin D deficiency has been associated with an increased risk of CRC. 1α,25-Dihydroxyvitamin D3 [1,25(OH)2D3], the most active vitamin D metabolite, is a pleiotropic hormone that, through its binding to a transcription factor of the nuclear receptor superfamily, is a major regulator of the human genome. 1,25(OH)2D3 acts on colon carcinoma and stromal cells and displays tumor protective actions. Here, we review the variety of molecular mechanisms underlying the effects of 1,25(OH)2D3 in CRC, which affect multiple processes that are dysregulated during tumor initiation and progression. Additionally, we discuss the epidemiological data that associate vitamin D deficiency and CRC, and the most relevant randomized controlled trials of vitamin D3 supplementation conducted in both healthy individuals and CRC patients.
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Affiliation(s)
- Fábio Pereira
- Instituto de Investigaciones Biomédicas Sols-Morreale, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
- Servicio de Oncología Radioterápica, Complejo Hospitalario Universitario de Ourense, Spain
| | - Asunción Fernández-Barral
- Instituto de Investigaciones Biomédicas Sols-Morreale, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz-IdiPAZ (Hospital Universitario La Paz-Universidad Autónoma de Madrid), Spain
| | - María Jesús Larriba
- Instituto de Investigaciones Biomédicas Sols-Morreale, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz-IdiPAZ (Hospital Universitario La Paz-Universidad Autónoma de Madrid), Spain
| | - Antonio Barbáchano
- Instituto de Investigaciones Biomédicas Sols-Morreale, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz-IdiPAZ (Hospital Universitario La Paz-Universidad Autónoma de Madrid), Spain
| | - José Manuel González-Sancho
- Instituto de Investigaciones Biomédicas Sols-Morreale, Consejo Superior de Investigaciones Científicas, Universidad Autónoma de Madrid, Spain
- Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario La Paz-IdiPAZ (Hospital Universitario La Paz-Universidad Autónoma de Madrid), Spain
- Departamento de Bioquímica, Facultad de Medicina, Universidad Autónoma de Madrid, Spain
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2
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Gu Y, Tang J, Zhang H, Wu Q, Luo L, Sun J. MicroRNA-125b mediates Interferon-γ-induced downregulation of the vitamin D receptor in systemic lupus erythematosus. Z Rheumatol 2024; 83:132-139. [PMID: 36732450 PMCID: PMC9894746 DOI: 10.1007/s00393-023-01319-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2023] [Indexed: 02/04/2023]
Abstract
BACKGROUND The inflammatory factor interferon (IFN)-γ is related to the occurrence and development of systemic lupus erythematosus (SLE). The vitamin D receptor (VDR) has an anti-inflammatory effect and its downregulation is involved in the onset of SLE. Our previous studies have confirmed that the expression of VDR in SLE peripheral blood mononuclear cells (PBMCs) is downregulated, which is negatively correlated with disease activity and inflammation. However, the mechanism underlying VDR downregulation in SLE is unknown. METHODS Based on the results of computer simulation analysis, the expression of VDR and four microRNAs (miR-17-3p, miR-34a, miR-346, and miR-125b) in SLE PBMC cells was analyzed under proinflammatory cytokine IFN‑γ treatment, and miR-125b was identified as the target miRNA. The relationship between IFN‑γ, miR-125b, and VDR was further assessed in THP‑1 cells. RESULTS We showed that IFN‑γ inhibited the expression of VDR and miR-125b. Further study revealed that VDR mRNA was positively correlated with miR-125b in THP‑1 cells after IFN‑γ intervention. After transfection of miR-125b mimic or inhibitor, the expression of VDR in the miR-125b inhibitor group was lower than in the control group and miR-125b mimic group, while expression in the control group was lower than in miR-125b mimic group. Transfection of miR-125b inhibitor into THP‑1 cells could further promote the ability of IFN‑γ to inhibit VDR. CONCLUSION The decrease in VDR expression promotes development of inflammation and SLE. These data suggest that miR-125b may mediate inflammatory factor IFN-γ-induced downregulation of VDR in the pathogenesis of SLE.
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Affiliation(s)
- Yihong Gu
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Juan Tang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Zhang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Qiongying Wu
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Linjuan Luo
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China
| | - Jian Sun
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha, China.
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Abdelrahman BA, El-Khatib AS, Attia YM. Insights into the role of vitamin D in targeting the culprits of non-alcoholic fatty liver disease. Life Sci 2023; 332:122124. [PMID: 37742738 DOI: 10.1016/j.lfs.2023.122124] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 09/12/2023] [Accepted: 09/21/2023] [Indexed: 09/26/2023]
Abstract
Vitamin D (VD) is a secosteroid hormone that is renowned for its crucial role in phospho-calcium homeostasis upon binding to the nuclear vitamin D receptor (VDR). Over and above, the pleiotropic immunomodulatory, anti-inflammatory, and metabolic roles VD plays in different disease settings started to surface in the past few decades. On the other hand, a growing body of evidence suggests a correlation between non-alcoholic fatty liver disease (NAFLD) and its progressive inflammatory form non-alcoholic steatohepatitis (NASH) with vitamin D deficiency (VDD) owing to the former's ingrained link with obesity and metabolic syndrome. Accordingly, a better understanding of the contribution of disrupted VDR signalling to NAFLD incidence and progression would provide further insights into its diagnosis, treatment modalities, and prognosis. This is especially significant as, hitherto, no drug for NAFLD has been approved. This review, therefore, sought to set forth the likely contribution of VDR signalling in NAFLD and how it might influence its multiple drivers.
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Affiliation(s)
- Basma A Abdelrahman
- Department of Pharmacology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt.
| | - Yasmeen M Attia
- Department of Pharmacology, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt; The Center for Drug Research and Development (CDRD), Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
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4
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Zhang Y, Li Y, Wei Y, Cong L. Molecular Mechanism of Vitamin D Receptor Modulating Wnt/β-catenin Signaling Pathway in Gastric Cancer. J Cancer 2023; 14:3285-3294. [PMID: 37928423 PMCID: PMC10622995 DOI: 10.7150/jca.81034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 07/27/2023] [Indexed: 11/07/2023] Open
Abstract
Background: Gastric cancer is the most common gastrointestinal cancer worldwide. The latest data showed that it was the fourth leading cause of cancer-related death. The unobvious symptom and the difficulties lying in the early diagnosis largely affect the effect of the treatment. Therefore, it becomes particularly important to investigate the related genes and signal transduction pathways in gastric cancer. Our previous study found that the vitamin D receptor (VDR) gene FokI polymorphism may be associated with susceptibility to gastric cancer in the Chinese Han population. However, the mechanism of VDR affecting gastric cancer is unknown. In this study, we explored the molecular mechanism and the possible signaling pathway of VDR modulating carcinogenesis and progression of gastric cancer. Methods: The expression of VDR in gastric cancer cell lines was interfered by plasmid transfection and RNA interference technology. And then we analyzed the cell viability and invasive ability by MTT assay, colony formation assay, and transwell migration assay, and detected the expression of VDR and several signaling proteins in gastric cancer cells by SDS-PAGE and Western blotting. Results: The overexpression of VDR can significantly inhibit the viability and invasive ability of gastric cancer cells; on the contrary, when VDR siRNA inhibits the expression of VDR, the viability and invasive ability of gastric cancer cells enhanced. VDR expression levels in gastric cancer cells treated with 1,25 (OH) 2D3 showed a time-dependent increased expression; and with the increase of the VDR expression, the expression of β-catenin decreased gradually, but the expression of E-cadherin showed a time-dependent increase (P < 0.05). Compared with the mutant-type VDR gene(ff) cells, the degree of β-catenin decline was significantly enhanced after transfected with homozygous wild-type VDR gene (FF) plasmids (p<0.05). Conclusions: The results of this study indicate that VDR FokI polymorphism plays an important role in the malignant phenotype of gastric cancer cells, such as proliferation, invasion, and clone formation. When the VDR is activated by its ligand, it can prevent the nuclear import of β-catenin, affect the E-cadherin level, inhibit the proliferation of gastric cancer cells, which suggested that VDR FokI gene may play a role of cancer suppressor via Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Ying Zhang
- Department of Radiotherapy, Cangzhou Central Hospital, Hebei, China
| | - Yan Li
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yuzheng Wei
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Lei Cong
- Department of Oncology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Department of Oncology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China
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5
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Chmiel JA, Stuivenberg GA, Al KF, Akouris PP, Razvi H, Burton JP, Bjazevic J. Vitamins as regulators of calcium-containing kidney stones - new perspectives on the role of the gut microbiome. Nat Rev Urol 2023; 20:615-637. [PMID: 37161031 PMCID: PMC10169205 DOI: 10.1038/s41585-023-00768-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2023] [Indexed: 05/11/2023]
Abstract
Calcium-based kidney stone disease is a highly prevalent and morbid condition, with an often complicated and multifactorial aetiology. An abundance of research on the role of specific vitamins (B6, C and D) in stone formation exists, but no consensus has been reached on how these vitamins influence stone disease. As a consequence of emerging research on the role of the gut microbiota in urolithiasis, previous notions on the contribution of these vitamins to urolithiasis are being reconsidered in the field, and investigation into previously overlooked vitamins (A, E and K) was expanded. Understanding how the microbiota influences host vitamin regulation could help to determine the role of vitamins in stone disease.
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Affiliation(s)
- John A Chmiel
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotic Research, London, Ontario, Canada
| | - Gerrit A Stuivenberg
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotic Research, London, Ontario, Canada
| | - Kait F Al
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotic Research, London, Ontario, Canada
| | - Polycronis P Akouris
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotic Research, London, Ontario, Canada
| | - Hassan Razvi
- Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
| | - Jeremy P Burton
- Department of Microbiology & Immunology, Western University, London, Ontario, Canada
- Canadian Centre for Human Microbiome and Probiotic Research, London, Ontario, Canada
- Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
| | - Jennifer Bjazevic
- Division of Urology, Department of Surgery, Western University, London, Ontario, Canada.
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Liu H, Lu N, Cui M, Zhang M. Role of epigenetic modifications mediated by vitamins and trace elements in inflammatory bowel disease. Epigenomics 2023; 15:839-843. [PMID: 37694343 DOI: 10.2217/epi-2023-0226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2023] Open
Abstract
Graphical abstract [Formula: see text] Numerous environmental factors frequently emerge as primary determinants of inflammatory bowel disease (IBD). Diet is a major component of environmental factors, and the consumption of vitamins (A, B, C and D) and trace elements (calcium, iron, zinc and selenium) exerts an impact on the progression of IBD through epigenetic modifications. Intake of vitamins A, B, C and D, as well as excessive amounts of iron and calcium, can modulate the condition of IBD by regulating the levels of DNA methylation, histone acetylation and miRNA. Zinc and selenium alleviate the progression of IBD by regulating the levels of promoter methylation or histone ubiquitination, respectively. Graphical Abstract was adapted from 'Epigenetic levels (layout)', by BioRender.com. Retrieved from https://app.biorender.com/biorender-templates.
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Affiliation(s)
- Hao Liu
- Department of Clinical Medicine, Shaanxi University of Chinese Medicine, Xianyang, Shaanxi, 712046, China
| | - Ning Lu
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, 710077, China
| | - Manli Cui
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, 710077, China
| | - Mingxin Zhang
- Department of Gastroenterology, the First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, 710077, China
- The Second Affiliated Hospital of Chinese Medicine, Xianyang, Shaanxi, 712099, China
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Macias-Ceja DC, Barrachina MD, Ortiz-Masià D. Autophagy in intestinal fibrosis: relevance in inflammatory bowel disease. Front Pharmacol 2023; 14:1170436. [PMID: 37397491 PMCID: PMC10307973 DOI: 10.3389/fphar.2023.1170436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 06/06/2023] [Indexed: 07/04/2023] Open
Abstract
Chronic inflammation is often associated with fibrotic disorders in which an excessive deposition of extracellular matrix is a hallmark. Long-term fibrosis starts with tissue hypofunction and finally ends in organ failure. Intestinal fibrosis is not an exception, and it is a frequent complication of inflammatory bowel disease (IBD). Several studies have confirmed the link between deregulated autophagy and fibrosis and the presence of common prognostic markers; indeed, both up- and downregulation of autophagy are presumed to be implicated in the progression of fibrosis. A better knowledge of the role of autophagy in fibrosis may lead to it becoming a potential target of antifibrotic therapy. In this review we explore novel advances in the field that highlight the relevance of autophagy in fibrosis, and give special focus to fibrosis in IBD patients.
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Affiliation(s)
- Dulce C. Macias-Ceja
- Departamento de Farmacología and CIBER, Facultad de Medicina y Odontología, Universitat de Valencia, Valencia, Spain
| | - María D. Barrachina
- Departamento de Farmacología and CIBER, Facultad de Medicina y Odontología, Universitat de Valencia, Valencia, Spain
| | - Dolores Ortiz-Masià
- Departamento de Farmacología and CIBER, Facultad de Medicina y Odontología, Universitat de Valencia, Valencia, Spain
- Departamento de Medicina, Facultad de Medicina y Odontología, Universitat de Valencia, Valencia, Spain
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Alfaifi J, Germain A, Heba AC, Arnone D, Gailly L, Ndiaye NC, Viennois E, Caron B, Peyrin-Biroulet L, Dreumont N. Deep Dive Into MicroRNAs in Inflammatory Bowel Disease. Inflamm Bowel Dis 2023; 29:986-999. [PMID: 36545755 DOI: 10.1093/ibd/izac250] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Indexed: 06/02/2023]
Abstract
Inflammatory bowel disease (IBD), which includes ulcerative colitis and Crohn's disease, is thought to develop in genetically predisposed individuals as a consequence of complex interactions between dysregulated inflammatory stimuli, immunological responses, and environmental factors. The pathogenesis of IBD has yet to be fully understood. The global increase in the incidence of IBD suggests a gap in the current understanding of the disease. The development of a new diagnostic tool for inflammatory bowel disease that is both less invasive and more cost-effective would allow for better management of this condition. MicroRNAs (miRNAs) are a class of noncoding RNAs with important roles as posttranscriptional regulators of gene expression, which has led to new insights into understanding IBD. Using techniques such as microarrays and real-time polymerase chain reactions, researchers have investigated the patterns in which patients with Crohn's disease and ulcerative colitis show alterations in the expression of miRNA in tissue, blood, and feces. These miRNAs are found to be differentially expressed in IBD and implicated in its pathogenesis through alterations in autophagy, intestinal barrier, and immune homeostasis. In this review, we discuss the miRNA expression profiles associated with IBD in tissue, peripheral blood, and feces and provide an overview of the miRNA mechanisms involved in IBD.
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Affiliation(s)
- Jaber Alfaifi
- Department of Hepatobiliary, Colorectal, and Digestive Surgery, Nancy University Hospital, University of Lorraine, Nancy, France
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Adeline Germain
- Department of Hepatobiliary, Colorectal, and Digestive Surgery, Nancy University Hospital, University of Lorraine, Nancy, France
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Anne-Charlotte Heba
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Djésia Arnone
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Laura Gailly
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Ndeye Coumba Ndiaye
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
| | - Emilie Viennois
- INSERM U1149, Center of Research on Inflammation, Université de Paris, Paris, France
| | - Bénédicte Caron
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
- Department of Gastroenterology, Nancy University Hospital, University of Lorraine, Nancy, France
| | - Laurent Peyrin-Biroulet
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
- Department of Gastroenterology, Nancy University Hospital, University of Lorraine, Nancy, France
| | - Natacha Dreumont
- NGERE (Nutrition-Genetics and Exposure to Environmental Risks), INSERM, University of Lorraine, Nancy, France
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Aggeletopoulou I, Marangos M, Assimakopoulos SF, Mouzaki A, Thomopoulos K, Triantos C. Vitamin D and Microbiome: Molecular Interaction in Inflammatory Bowel Disease Pathogenesis. THE AMERICAN JOURNAL OF PATHOLOGY 2023:S0002-9440(23)00055-X. [PMID: 36868465 DOI: 10.1016/j.ajpath.2023.02.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 03/05/2023]
Abstract
Studies of systemic autoimmune diseases point to characteristic microbial patterns in various diseases, including inflammatory bowel disease (IBD). Autoimmune diseases, and IBD in particular, show a predisposition to vitamin D deficiency, leading to alterations in the microbiome and disruption of intestinal epithelial barrier integrity. In this review, we examine the role of the gut microbiome in IBD and discuss how vitamin D-vitamin D receptor (VDR)-associated molecular signaling pathways contribute to the development and progression of IBD through their effects on gut barrier function, the microbial community, and immune system function. The present data demonstrate that vitamin D promotes the proper function of the innate immune system by acting as an immunomodulator, exerting anti-inflammatory effects, and critically contributing to the maintenance of gut barrier integrity and modulation of the gut microbiota, mechanisms that may influence the IBD development and progression. VDR regulates the biological effects of vitamin D and is related to environmental, genetic, immunologic, and microbial aspects of IBD. Vitamin D influences the distribution of the fecal microbiota, with high vitamin D levels associated with increased levels of beneficial bacterial species and lower levels of pathogenic bacteria. Understanding the cellular functions of vitamin D-VDR signaling in intestinal epithelial cells may pave the way for the development of new treatment strategies for the therapeutic armamentarium of IBD in the near future.
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Affiliation(s)
- Ioanna Aggeletopoulou
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, Patras, Greece; Division of Hematology, Department of Internal Medicine, Laboratory of Immunohematology, Medical School, University Hospital of Patras, Patras, Greece.
| | - Markos Marangos
- Division of Infectious Diseases, Department of Internal Medicine, University Hospital of Patras, Patras, Greece
| | - Stelios F Assimakopoulos
- Division of Infectious Diseases, Department of Internal Medicine, University Hospital of Patras, Patras, Greece
| | - Athanasia Mouzaki
- Division of Hematology, Department of Internal Medicine, Laboratory of Immunohematology, Medical School, University Hospital of Patras, Patras, Greece
| | - Konstantinos Thomopoulos
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, Patras, Greece
| | - Christos Triantos
- Division of Gastroenterology, Department of Internal Medicine, University Hospital of Patras, Patras, Greece
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10
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Chen D, Tang H, Li Y, Yang H, Wang H, Tan B, Qian J. Vitamin D3 and Lactobacillus rhamnosus GG/p40 Synergize to Protect Mice From Colitis by Promoting Vitamin D Receptor Expression and Epithelial Proliferation. Inflamm Bowel Dis 2022; 29:620-632. [PMID: 36562589 DOI: 10.1093/ibd/izac238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND While vitamin D (VitD) levels are negatively correlated with inflammatory bowel disease (IBD) activity, VitD supplementation does not reduce IBD severity. The probiotic Lactobacillus rhamnosus GG (LGG), which secretes p40, can upregulate colonic VitD receptor (VDR) expression. We therefore evaluated synergy between VitD3 and LGG/p40 in the treatment of mouse colitis. METHODS A dextran sulfate sodium (DSS) colitis model was established in Vdr+/+ and Vdr-/- mice, and mice were treated with VitD3, LGG, or p40 alone or in combination for 7 to 14 days. Colitis severity was assessed by weight loss, disease activity index (DAI), colon length, histology, and inflammatory cytokine expression together with VDR expression, proliferation, and apoptosis. In vitro, VDR expression and cell viability were assessed in HCT116 cells after stimulation with p40. RESULTS Total and nuclear VDR protein expression were lower in DSS-treated Vdr+/+ mice compared with control mice (P < .05). Compared with the DSS group, VitD3 + LGG alleviated colitis as assessed by significantly improved DAI and histological scores, increased colon length, decreased colonic Tnf, and increased Il10 expression together with increased colonic VDR gene and protein expression and increased Ki-67 proliferation index (P < .05). In Vdr-/- mice, VitD3 + LGG had no effect on DSS colitis. In Vdr+/+ mice, VitD3 + p40 also reduced colitis severity according to clinicopathological and immunological metrics and increased VDR expression and epithelial proliferation (P < .05). In HCT116 cells, p40 stimulation increased VDR protein expression and viability (P < .05). CONCLUSIONS VitD3 and LGG/p40 synergistically improve the severity of colitis by increasing colonic VDR expression and promoting colonic epithelial proliferation.
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Affiliation(s)
- Dan Chen
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Gastroenterology, Beijing Hospital, National Center of Gerontology.,Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing, China
| | - Hao Tang
- Department of Internal Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, Chinaand
| | - Yue Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hong Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongying Wang
- State Key Laboratory of Molecular Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Bei Tan
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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11
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Matos C, Mamilos A, Shah PN, Meedt E, Weber D, Ghimire S, Hiergeist A, Gessner A, Dickinson A, Dressel R, Walter L, Stark K, Heid IM, Poeck H, Edinger M, Wolff D, Herr W, Holler E, Kreutz M, Ghimire S. Downregulation of the vitamin D receptor expression during acute gastrointestinal graft versus host disease is associated with poor outcome after allogeneic stem cell transplantation. Front Immunol 2022; 13:1028850. [PMID: 36341397 PMCID: PMC9632171 DOI: 10.3389/fimmu.2022.1028850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 09/30/2022] [Indexed: 11/17/2022] Open
Abstract
The vitamin D receptor (VDR) is critical in regulating intestinal homeostasis and emerging evidence demonstrates that VDR deficiency is a critical factor in inflammatory bowel disease pathology. However, no clinical data exist regarding the intestinal expression of VDR in patients after allogeneic haematopoietic stem cell transplantation (HSCT). Analyzing intestinal biopsies from 90 patients undergoing HSCT with mortality follow-up, we demonstrated that patients with severe acute gastrointestinal graft versus host disease (GI-GvHD) showed significant downregulation of VDR gene expression compared to mild or no acute GI-GvHD patients (p = 0.007). Reduced VDR expression was already detectable at acute GI-GvHD onset compared to GvHD-free patients (p = 0.01). These results were confirmed by immunohistochemistry (IHC) where patients with severe acute GI-GvHD showed fewer VDR+ cells (p = 0.03) and a reduced VDR staining score (p = 0.02) as compared to mild or no acute GI-GvHD patients. Accordingly, low VDR gene expression was associated with a higher cumulative incidence of treatment-related mortality (TRM) (p = 1.6x10-6) but not with relapse-related mortality (RRM). A multivariate Cox regression analysis identified low VDR as an independent risk factor for TRM (p = 0.001, hazard ratio 4.14, 95% CI 1.78-9.63). Furthermore, VDR gene expression significantly correlated with anti-microbial peptides (AMPs) gene expression (DEFA5: r = 0.637, p = 7x10-5, DEFA6: r 0 0.546, p = 0.001). In conclusion, our findings suggest an essential role of the VDR in the pathogenesis of gut GvHD and the prognosis of patients undergoing HSCT.
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Affiliation(s)
- Carina Matos
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Andreas Mamilos
- Department of Pathology, University of Regensburg, Regensburg, Germany
| | - Pranali N. Shah
- Department of Dermatology, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- Institute of Cellular and Molecular Immunology, University Medical Centre Göttingen, Göttingen, Germany
| | - Elisabeth Meedt
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Daniela Weber
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Saroj Ghimire
- Kathmandu University School of Medical Sciences, Dhulikhel, Nepal
| | - Andreas Hiergeist
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - André Gessner
- Institute of Clinical Microbiology and Hygiene, University Hospital Regensburg, Regensburg, Germany
| | - Anne Dickinson
- Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Ralf Dressel
- Institute of Cellular and Molecular Immunology, University Medical Centre Göttingen, Göttingen, Germany
| | - Lutz Walter
- Primate Genetics Laboratory, German Primate Center, Leibniz-Institute for Primate Research, Göttingen, Germany
| | - Klaus Stark
- Department for Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Iris M. Heid
- Department for Genetic Epidemiology, University of Regensburg, Regensburg, Germany
| | - Hendrik Poeck
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
- Leibniz Institute for Immunotherapy (LIT), Regensburg, Germany
| | - Matthias Edinger
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
- Leibniz Institute for Immunotherapy (LIT), Regensburg, Germany
| | - Daniel Wolff
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Ernst Holler
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Marina Kreutz
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
- Leibniz Institute for Immunotherapy (LIT), Regensburg, Germany
| | - Sakhila Ghimire
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
- *Correspondence: Sakhila Ghimire,
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Triantos C, Aggeletopoulou I, Mantzaris GJ, Mouzaki Α. Molecular basis of vitamin D action in inflammatory bowel disease. Autoimmun Rev 2022; 21:103136. [DOI: 10.1016/j.autrev.2022.103136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 06/29/2022] [Indexed: 12/15/2022]
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蒋 韩, 李 珮, 柳 丽, 黄 珊, 李 俊, 吴 唯. [Identification of microRNAs targeting vitamin D receptor and their effect on parathyroid hormone secretion in secondary hyperparathyroidism]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:509-517. [PMID: 35527486 PMCID: PMC9085591 DOI: 10.12122/j.issn.1673-4254.2022.04.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To identify the miRNAs targeting vitamin D receptor (VDR) gene and their effect on parathyroid hormone (PTH) secretion in secondary hyperparathyroidism. METHODS Primary parathyroid cells with secondary hyperparathyroidism were isolated by collagenase digestion and cultured. The miRNAs targeting VDR were screened by bioinformatics methods and full transcriptome sequencing, and dual-luciferase reporter assay was used to verify the targeting relationship between VDR and the screened miRNA. The effects of overexpression or inhibition of the candidate miRNA on VDR mRNA and protein expressions and PTH secretion were evaluated using qRT-PCR and Western blotting. The expression levels of the candidate miRNAs and VDR mRNA in clinical specimens of parathyroid tissues were verified by qRT-PCR, and the expression of VDR protein was detected by immunohistochemistry. RESULTS We successfully isolated primary parathyroid cells. Dual-luciferase reporter assay verified the targeting relationship of hsa-miR-149-5p, hsa-miR-221-5p, hsa-miR-222-3p, hsa-miR-29a-5p, hsa-miR-301a-5p, hsa-miR-873-5p, hsa-miR-93-3p with VDR, and among them, the overexpression of hsa-miR-149-5p and hsa-miR-301a-5p significantly increased PTH secretion in the parathyroid cells. In patients with secondary hyperparathyroidism, hsa-miR-149-5p was highly expressed in the parathyroid tissues (P=0.046), where the expressions of VDR mRNA (P=0.0267) and protein were both decreased. CONCLUSION The two miRNAs, hsa-miR-149-5p and hsa-miR-301a-5p, may promote the secretion of PTH in patients with secondary hyperparathyroidism by down-regulating the expression of VDR gene.
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Affiliation(s)
- 韩 蒋
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - 珮婷 李
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - 丽丹 柳
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - 珊 黄
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - 俊 李
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
| | - 唯 吴
- />中南大学湘雅三医院乳甲外科,湖南 长沙 410013Department of Breast and Thyroid Surgery, Third Xiangya Hospital of Central South University, Changsha 410013, China
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Usategui-Martín R, Rigual R, Ruiz-Mambrilla M, Fernández-Gómez JM, Dueñas A, Pérez-Castrillón JL. Molecular Mechanisms Involved in Hypoxia-Induced Alterations in Bone Remodeling. Int J Mol Sci 2022; 23:ijms23063233. [PMID: 35328654 PMCID: PMC8953213 DOI: 10.3390/ijms23063233] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 12/31/2022] Open
Abstract
Bone is crucial for the support of muscles and the protection of vital organs, and as a reservoir of calcium and phosphorus. Bone is one of the most metabolically active tissues and is continuously renewed to adapt to the changes required for healthy functioning. To maintain normal cellular and physiological bone functions sufficient oxygen is required, as evidence has shown that hypoxia may influence bone health. In this scenario, this review aimed to analyze the molecular mechanisms involved in hypoxia-induced bone remodeling alterations and their possible clinical consequences. Hypoxia has been associated with reduced bone formation and reduced osteoblast matrix mineralization due to the hypoxia environment inhibiting osteoblast differentiation. A hypoxic environment is involved with increased osteoclastogenesis and increased bone resorptive capacity of the osteoclasts. Clinical studies, although with contradictory results, have shown that hypoxia can modify bone remodeling.
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Affiliation(s)
- Ricardo Usategui-Martín
- Department of Cell Biology, Histology and Pharmacology, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
- IOBA, University of Valladolid, 47011 Valladolid, Spain
- Correspondence: (R.U.-M.); (J.L.P.-C.)
| | - Ricardo Rigual
- Department of Biochemistry, Molecular Biology and Physiology, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
- IBGM, University of Valladolid, 47003 Valladolid, Spain
| | - Marta Ruiz-Mambrilla
- Department of Surgery, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
| | - José-María Fernández-Gómez
- Department of Cell Biology, Histology and Pharmacology, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
| | - Antonio Dueñas
- Department of Medicine, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
- Department of Toxicology, Río Hortega University Hospital, 47012 Valladolid, Spain
| | - José Luis Pérez-Castrillón
- Department of Medicine, Faculty of Medicine, University of Valladolid, 47003 Valladolid, Spain;
- Department of Internal Medicine, Río Hortega University Hospital, 47012 Valladolid, Spain
- Correspondence: (R.U.-M.); (J.L.P.-C.)
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Wang H, He X, Liang S, Chen X. Role of vitamin D in ulcerative colitis: an update on basic research and therapeutic applications. Expert Rev Gastroenterol Hepatol 2022; 16:251-264. [PMID: 35236213 DOI: 10.1080/17474124.2022.2048817] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Vitamin D deficiency is common in patients with ulcerative colitis (UC). Moreover, vitamin D supplementation seems to contribute to disease relief. Nevertheless, the exact etiological link between vitamin D deficiency and UC is far from clear, and an agreement has not been reached on the frequency and dosage of vitamin D supplementation required. AREAS COVERED This review will outline the possible role of vitamin D in the pathogenesis of UC and summarize the current state of clinical research on vitamin D. Literature was searched on PUBMED, with 'Vitamin D,' 'Ulcerative colitis,' 'Vitamin D receptor,' and 'disease activity' as MeSH Terms. Relevant information is presented in figures or tables. EXPERT OPINION The etiological relationship between vitamin D and the onset of UC is still being researched. More high-quality double-blind randomized clinical studies are needed to determine the efficacy of vitamin D supplementation in the treatment of UC, whether as the main treatment or as an adjuvant treatment. Importantly, determining the dosage and frequency of vitamin D supplementation should be the main research direction in the future, and regional factors should also be fully considered in this respect.
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Affiliation(s)
- HongQian Wang
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui China
| | - Xue He
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui China
| | - ShiMin Liang
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui China
| | - Xi Chen
- Department of Gastroenterology, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui China
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16
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Lai Y, Masatoshi H, Ma Y, Guo Y, Zhang B. Role of Vitamin K in Intestinal Health. Front Immunol 2022; 12:791565. [PMID: 35069573 PMCID: PMC8769504 DOI: 10.3389/fimmu.2021.791565] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/02/2021] [Indexed: 12/12/2022] Open
Abstract
Intestinal diseases, such as inflammatory bowel diseases (IBDs) and colorectal cancer (CRC) generally characterized by clinical symptoms, including malabsorption, intestinal dysfunction, injury, and microbiome imbalance, as well as certain secondary intestinal disease complications, continue to be serious public health problems worldwide. The role of vitamin K (VK) on intestinal health has drawn growing interest in recent years. In addition to its role in blood coagulation and bone health, several investigations continue to explore the role of VK as an emerging novel biological compound with the potential function of improving intestinal health. This study aims to present a thorough review on the bacterial sources, intestinal absorption, uptake of VK, and VK deficiency in patients with intestinal diseases, with emphasis on the effect of VK supplementation on immunity, anti-inflammation, intestinal microbes and its metabolites, antioxidation, and coagulation, and promoting epithelial development. Besides, VK-dependent proteins (VKDPs) are another crucial mechanism for VK to exert a gastroprotection role for their functions of anti-inflammation, immunomodulation, and anti-tumorigenesis. In summary, published studies preliminarily show that VK presents a beneficial effect on intestinal health and may be used as a therapeutic drug to prevent/treat intestinal diseases, but the specific mechanism of VK in intestinal health has yet to be elucidated.
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Affiliation(s)
- Yujiao Lai
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hori Masatoshi
- Department of Veterinary Pharmacology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo, Japan
| | - Yanbo Ma
- Department of Animal Physiology, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang, China
| | - Yuming Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Bingkun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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Vernia F, Valvano M, Longo S, Cesaro N, Viscido A, Latella G. Vitamin D in Inflammatory Bowel Diseases. Mechanisms of Action and Therapeutic Implications. Nutrients 2022; 14:269. [PMID: 35057450 PMCID: PMC8779654 DOI: 10.3390/nu14020269] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/04/2022] [Accepted: 01/04/2022] [Indexed: 02/06/2023] Open
Abstract
(1) Background: Vitamin D is an immunoregulatory factor influencing intestinal homeostasis. Recent evidence supports a central role of this micronutrient in the course of Inflammatory Bowel Diseases (IBD). This narrative review aims to provide a general overview of the possible biological mechanisms of action of vitamin D and its therapeutic implications in IBD. (2) Methods: A systematic electronic search of the English literature up to October 2021 was performed using Medline and the Cochrane Library. Only papers written in English that analyzed the role of vitamin D in IBD were included. (3) Results: In vitro and animal studies reported that vitamin D signaling improves epithelial barrier integrity regulating the expression of several junctional proteins, defensins, and mucins, modulates the inflammatory response, and affects gut microbiome composition. Recent studies also suggest that vitamin D deficiency is highly prevalent among IBD patients and that low serum levels correlate with disease activity and, less clearly, with disease course. (4) Conclusions: An increasing body of evidence suggests some role of vitamin D in the pathophysiology of IBD, nonetheless the underlying mechanisms have been so far only partially elucidated. A strong correlation with disease activity has been reported but its implication in the treatment is still undefined. Thus, studies focused on this issue, the definition of vitamin D levels responsible for clinical effects, and the potential role of vitamin D as a therapeutic agent are strongly encouraged.
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Affiliation(s)
| | | | | | | | | | - Giovanni Latella
- Gastroenterology Unit, Department of Life, Health and Environmental Sciences, University of L’Aquila, Piazza S. Tommasi, Coppito, 67100 L’Aquila, Italy; (F.V.); (M.V.); (S.L.); (N.C.); (A.V.)
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18
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Abstract
Abstract
Non-alcoholic fatty liver disease (NAFLD) is now the most common cause of chronic liver disease, worldwide. The molecular pathogenesis of NAFLD is complex, involving numerous signalling molecules including microRNAs (miRNAs). Dysregulation of miRNA expression is associated with hepatic inflammation, fibrosis and hepatocellular carcinoma. Although miRNAs are also critical to the cellular response to vitamin D, mediating regulation of the vitamin D receptor (VDR) and vitamin D’s anticancer effects, a role for vitamin D regulated miRNAs in NAFLD pathogenesis has been relatively unexplored. Therefore, this review aimed to critically assess the evidence for a potential subset of miRNAs that are both dysregulated in NAFLD and modulated by vitamin D. Comprehensive review of 89 human studies identified 25 miRNAs found dysregulated in more than one NAFLD study. In contrast, only 17 studies, including a protocol for a trial in NAFLD, had examined miRNAs in relation to vitamin D status, response to supplementation, or vitamin D in the context of the liver. This paper summarises these data and reviews the biological roles of six miRNAs (miR-21, miR-30, miR-34, miR-122, miR-146, miR-200) found dysregulated in multiple independent NAFLD studies. While modulation of miRNAs by vitamin D has been understudied, integrating the data suggests seven vitamin D modulated miRNAs (miR-27, miR-125, miR-155, miR-192, miR-223, miR-375, miR-378) potentially relevant to NAFLD pathogenesis. Our summary tables provide a significant resource to underpin future hypothesis-driven research, and we conclude that the measurement of serum and hepatic miRNAs in response to vitamin D supplementation in larger trials is warranted.
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Wang X, Ge X, Liao W, Cao Y, Li R, Zhang F, Zhao B, Du J. ZFP36 promotes VDR mRNA degradation to facilitate cell death in oral and colonic epithelial cells. Cell Commun Signal 2021; 19:85. [PMID: 34380509 PMCID: PMC8355874 DOI: 10.1186/s12964-021-00765-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/13/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Vitamin D receptor (VDR) plays a vital protective role in oral and colonic epithelial cells. Albeit we know that VDR expression is reduced in the mucosal epithelial layers of autoimmune diseases, the mechanism by which VDR is decreased remains elusive. METHODS VDR and zinc finger protein 36 (ZFP36) levels in human samples and cell lines were detected by real-time PCR, western blot and immunostaining. Luciferase report assay was used to test cis-elements in VDR gene promoter, real-time PCR was applied to measure mRNA decay and western blot was performed to evaluate protein degradation. RNA affinity chromatography assay was used to test protein-mRNA interaction. Co-immunoprecipitation was used to detect protein-protein interaction. The role of ZFP36 in AU-rich elements (AREs) in the 3' untranslated region (UTR) of VDR mRNA was also measured by luciferase report assay. RESULTS We identify ZFP36 can bind with the AREs in the 3'UTR of VDR mRNA, leading to mRNA degradation in oral and colonic epithelial cells under inflammatory circumstance. Either ZFP36 protein or AREs of VDR mRNA mutation abolishes this protein-mRNA binding process. After the key amino acid's mutation, ZFP36 fails to decrease VDR mRNA expression. We also find that VDR physically binds with Y box-binding protein 1 (YBX-1) to block YBX-1's nuclear translocation and ameliorate cell death in the presence of inflammation. CONCLUSION These findings provide insights into the cause of VDR decrease in oral and colonic epithelial cells under inflammatory condition and explain how VDR maintains cell viability in these cells. Video abstract.
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Affiliation(s)
- Xiangyu Wang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Child Dental and Preventive Dentistry, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Xuejun Ge
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Endodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Wang Liao
- Department of Cardiology, Hainan General Hospital, Hainan Clinical Medicine Research Institution, Haikou, China
| | - Yong Cao
- Division of Gastroenterology, Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Ran Li
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Child Dental and Preventive Dentistry, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Fang Zhang
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Bin Zhao
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China.,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Jie Du
- Shanxi Province Key Laboratory of Oral Diseases Prevention and New Materials, Shanxi Medical University School and Hospital of Stomatology, No. 63 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, No. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Institute of Biomedical Research, Shanxi Medical University, Taiyuan, Shanxi, China.
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He J, Du J, Yi B, Wang J, Zhang H, Li YC, Sun J. MicroRNA-122 contributes to lipopolysaccharide-induced acute kidney injury via down-regulating the vitamin D receptor in the kidney. Eur J Clin Invest 2021; 51:e13547. [PMID: 33782973 DOI: 10.1111/eci.13547] [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: 01/13/2021] [Revised: 02/21/2021] [Accepted: 02/21/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Our previous studies showed that vitamin D receptor (VDR) depletion promotes lipopolysaccharide (LPS)-induced acute kidney injury (AKI) in mice, and renal VDR is down-regulated in AKI, but the mechanism of VDR down-regulation is unclear. METHODS Nutritional vitamin D deficiency was induced by feeding mice a vitamin D-deficient (VD-D) diet. Mice were injected intraperitoneally with LPS (20 mg/kg) to establish LPS-induced AKI. Levels of VDR and miR-122 were measured both in vivo and in vitro. The associations between VDR and miR-122 were analysed by dual-luciferase reporter assays. RESULTS Compared with vitamin D-sufficient (VD-S) mice, VD-D mice developed more severe renal injury following LPS challenge. LPS induced a dramatic decrease in VDR expression and marked induction of miR-122 both in vivo and in vitro. Furthermore, miR-122 hairpin inhibitor alleviated LPS-induced VDR down-regulation whereas miR-122 mimic directly suppressed VDR expression in HK-2 cells. In luciferase reporter assays, miR-122 mimic was able to suppress luciferase activity in 293T cells co-transfected with a luciferase reporter that contains a putative miR-122 target site from 3'UTR of the VDR transcript, but not when this site was mutated. Moreover, miR-122 mimic significantly blocked paricalcitol-induced luciferase activity in 293T cells co-transfected with a VDRE-driven luciferase reporter, whereas miR-122 hairpin inhibitor enhanced paricalcitol's activity to suppress PUMA and caspase 3 activation induced by LPS in HK-2 cells. CONCLUSIONS Collectively, these studies provide evidence that miR-122 directly targets VDR in renal tubular cells, which strongly suggest that miR-122 up-regulation in the kidney under LPS challenge contributes to kidney injury by down-regulating VDR expression.
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Affiliation(s)
- Jinrong He
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jie Du
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, IL, USA
| | - Bin Yi
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jianwen Wang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Yan Chun Li
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, IL, USA
| | - Jian Sun
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China.,Department of Rheumatology and Immunology, The Third Xiangya Hospital, Central South University, Changsha, China
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21
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Khodakarimi S, Zarebkohan A, Kahroba H, Omrani M, Sepasi T, Mohaddes G, Beyrampour-Basmenj H, Ebrahimi A, Ebrahimi-Kalan A. The role of miRNAs in the regulation of autophagy in autoimmune diseases. Life Sci 2021; 287:119726. [PMID: 34144058 DOI: 10.1016/j.lfs.2021.119726] [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: 02/15/2021] [Revised: 05/22/2021] [Accepted: 06/05/2021] [Indexed: 10/21/2022]
Abstract
Autoimmune diseases (AD), which are classified as chronic injuries, are caused by a specific auto-reactive reaction. The etiology of most ADs is not well understood. Meanwhile, Autophagy is a protective response defining as a catabolic method by lysosomes tending to maintain homeostasis acts by recycling and discrediting cell compartments. Autophagy plays a crucial role in controlling immune homeostasis by eliminating intracellular pathogens and presenting antigens to immune cognition. MicroRNAs are commonly known as endogenous non-coding small RNAs, which span 18-25 nt and take part in the gene expression at the post-transcriptional level regulation. miRNAs play important roles in different processes like, cell differentiation, duplicating, and apoptosis. Moreover, miRNAs are the critical molecules for the regular function of the immune system by modulating immune tolerance mechanisms and autoimmunity. Recent findings support the role of dysregulated miRNAs in the pathogenesis of ADs and in the regulation of autophagy. In this review, we will focus on the role of the miRNAs in the regulation of autophagy and then will explain the role of dysregulated miRNAs in the initiation of the ADs by modulating autophagy.
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Affiliation(s)
- Sina Khodakarimi
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Amir Zarebkohan
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of medical sciences, Tabriz, Iran
| | - Houman Kahroba
- Molecular Medicine Research Centre, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammadhassan Omrani
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tina Sepasi
- Department of Medical Nanotechnology, Faculty of Advanced Medical Sciences, Tabriz University of medical sciences, Tabriz, Iran
| | - Gisou Mohaddes
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hanieh Beyrampour-Basmenj
- Department of Medical Biotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ayyub Ebrahimi
- Department of Molecular Biology and Genetics, Faculty of Arts and Sciences, Haliç University, Istanbul, Turkey
| | - Abbas Ebrahimi-Kalan
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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22
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Uno S, Nishimura T, Nishio K, Kohsaka A, Tamizu E, Nakano Y, Kagyo J, Nakajima Y, Arai R, Hasegawa H, Arakawa K, Kashimura S, Ishii R, Miyazaki N, Uwamino Y, Hasegawa N. Potential biomarker enhancing the activity of tuberculosis, hsa-miR-346. Tuberculosis (Edinb) 2021; 129:102101. [PMID: 34144376 DOI: 10.1016/j.tube.2021.102101] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 02/27/2021] [Accepted: 06/06/2021] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To determine the usefulness of hsa-miR-346, a potential biomarker enhancing the activity of non-tuberculous mycobacterial diseases, as a biomarker of tuberculosis activity. METHODS We investigated whether hsa-miR-346 is secreted by human macrophages infected with Mycobacterium tuberculosis (M. tuberculosis) in an in vitro study. In addition, a cross-sectional study was conducted first to evaluate whether serum hsa-miR-346 is elevated in patients with tuberculosis compared with that in healthy individuals. Second, we conducted a retrospective study to evaluate whether anti-tuberculosis treatment reduces serum hsa-miR-346 levels. RESULTS Log hsa-miR-346 levels were significantly elevated in the supernatant of human macrophages infected with M. tuberculosis in a dose-dependent manner. The mean serum log hsa-miR-346 levels were -15.48 (-15.76 to -15.21) in patients with tuberculosis and -16.12 (-16.29 to -15.95) in healthy volunteers, which significantly differed. In addition, hsa-miR-346 significantly decreased at 2 months from starting an anti-tuberculosis treatment. CONCLUSIONS We consider hsa-miR-346 as a potential biomarker enhancing the tuberculosis activity.
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Affiliation(s)
- Shunsuke Uno
- Department of Infectious Diseases, Keio University School of Medicine, Japan
| | - Tomoyasu Nishimura
- Department of Infectious Diseases, Keio University School of Medicine, Japan; Keio University Health Center, Japan.
| | - Kazumi Nishio
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Japan
| | - Asami Kohsaka
- Department of Infectious Diseases, Keio University School of Medicine, Japan
| | - Eiko Tamizu
- Department of Infectious Diseases, Keio University School of Medicine, Japan
| | - Yasushi Nakano
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Japan
| | - Junko Kagyo
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Japan; Department of Respiratory Medicine, Keiyu Hospital, Japan
| | - Yukiko Nakajima
- Department of Infectious Diseases, Kawasaki Municipal Ida Hospital, Japan
| | - Ryosuke Arai
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Japan
| | - Hanako Hasegawa
- Department of Respiratory Medicine, Kawasaki Municipal Ida Hospital, Japan
| | - Kenichi Arakawa
- Department of Respiratory Medicine, Japan Anti-Tuberculosis Association Fukujuji Hospital, Japan
| | - Shoko Kashimura
- Department of Infectious Diseases, Keio University School of Medicine, Japan
| | - Ryota Ishii
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, Japan; Department of Biostatistics, Faculty of Medicine, University of Tsukuba, Japan
| | - Naoki Miyazaki
- Biostatistics Unit, Clinical and Translational Research Center, Keio University Hospital, Japan
| | - Yoshifumi Uwamino
- Department of Infectious Diseases, Keio University School of Medicine, Japan; Department of Laboratory Medicine, Keio University School of Medicine, Japan
| | - Naoki Hasegawa
- Department of Infectious Diseases, Keio University School of Medicine, Japan
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23
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Jung H, Kim JS, Lee KH, Tizaoui K, Terrazzino S, Cargnin S, Smith L, Koyanagi A, Jacob L, Li H, Hong SH, Yon DK, Lee SW, Kim MS, Wasuwanich P, Karnsakul W, Shin JI, Kronbichler A. Roles of microRNAs in inflammatory bowel disease. Int J Biol Sci 2021; 17:2112-2123. [PMID: 34131410 PMCID: PMC8193269 DOI: 10.7150/ijbs.59904] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/08/2021] [Indexed: 12/12/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammatory disease of the gastrointestinal tract that mainly affects young people. IBD is associated with various gastrointestinal symptoms, and thus, affects the quality of life of patients. Currently, the pathogenesis of IBD is poorly understood. Although intestinal bacteria and host immune response are thought to be major factors in its pathogenesis, a sufficient explanation of their role in its pathophysiologic mechanism has not been presented. MicroRNAs (miRNAs), which are small RNA molecules that regulate gene expression, have gained attention as they are known to participate in the molecular interactions of IBD. Recent studies have confirmed the important role of miRNAs in targeting certain molecules in signaling pathways that regulate the homeostasis of the intestinal barrier, inflammatory reactions, and autophagy of the intestinal epithelium. Several studies have identified the specific miRNAs associated with IBD from colon tissues or serum samples of IBD patients and have attempted to use them as useful diagnostic biomarkers. Furthermore, some studies have attempted to treat IBD through intracolonic administration of specific miRNAs in the form of nanoparticle. This review summarizes the latest findings on the role of miRNAs in the pathogenesis, diagnosis, and treatment of IBD.
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Affiliation(s)
- HyunTaek Jung
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jae Seok Kim
- Department of Nephrology, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea
| | - Keum Hwa Lee
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Kalthoum Tizaoui
- Laboratory Microorganisms and Active Biomolecules, Sciences Faculty of Tunis, University Tunis El Manar, Tunis, Tunisia
| | - Salvatore Terrazzino
- Department of Pharmaceutical Sciences and Interdepartmental Research Center of Pharmacogenetics and Pharmacogenomics (CRIFF), University of Piemonte Orientale, Novara, Italy
| | - Sarah Cargnin
- Department of Pharmaceutical Sciences and Interdepartmental Research Center of Pharmacogenetics and Pharmacogenomics (CRIFF), University of Piemonte Orientale, Novara, Italy
| | - Lee Smith
- The Cambridge Centre for Sport and Exercise Science, Anglia Ruskin University, Cambridge, CB1 1PT, UK
| | - Ai Koyanagi
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, CIBERSAM, 08830 Barcelona, Spain.,ICREA, Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Louis Jacob
- Research and Development Unit, Parc Sanitari Sant Joan de Déu, CIBERSAM, 08830 Barcelona, Spain.,Faculty of Medicine, University of Versailles Saint-Quentin-en-Yvelines, 78000 Versailles, France
| | - Han Li
- University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Sung Hwi Hong
- Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Dong Keon Yon
- Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Seung Won Lee
- Department of Data Science, Sejong University College of Software Convergence, Seoul, Republic of Korea
| | - Min Seo Kim
- Korea University, College of Medicine, Seoul, Republic of Korea
| | - Paul Wasuwanich
- University of Florida College of Medicine, Gainesville, FL 32610, USA
| | - Wikrom Karnsakul
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Jae Il Shin
- Department of Pediatrics, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Andreas Kronbichler
- Department of Internal Medicine IV (Nephrology and Hypertension), Medical University Innsbruck, Innsbruck, Austria
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24
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Bendix M, Dige A, Jørgensen SP, Dahlerup JF, Bibby BM, Deleuran B, Agnholt J. Seven Weeks of High-Dose Vitamin D Treatment Reduces the Need for Infliximab Dose-Escalation and Decreases Inflammatory Markers in Crohn's Disease during One-Year Follow-Up. Nutrients 2021; 13:nu13041083. [PMID: 33810258 PMCID: PMC8065492 DOI: 10.3390/nu13041083] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/20/2021] [Accepted: 03/23/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Seven weeks of high-dose vitamin D treatment decreases intestinal IL17A and IFN-γ mRNA expression in active Crohn's disease (CD). In this follow-up study, we investigated whether seven-week vitamin D treatment affected the infliximab response in the following 45 weeks compared to placebo. METHODS CD patients (n = 40) were initially randomised into four groups: infliximab + vitamin-D; infliximab + placebo-vitamin-D; placebo-infliximab + vitamin-D; and placebo-infliximab + placebo-vitamin-D. Infliximab (5 mg/kg) or placebo-infliximab was administered at weeks 0, 2 and 6. Vitamin D (5 mg bolus followed by 0.5 mg/day for 7 weeks) or placebo-vitamin D was handed out. After the 7-week vitamin D period, all patients received infliximab during follow-up. Results are reported for Group D+ (infliximab + vitamin-D and placebo-infliximab + vitamin-D) and Group D- (infliximab + placebo-vitamin-D and placebo-infliximab + placebo-vitamin-D). RESULTS Group D- patients had greater needs for infliximab dose escalation during follow-up compared to group D+ (p = 0.05). Group D+ had lower median calprotectin levels week 15 (p = 0.02) and week 23 (p = 0.04) compared to group D-. Throughout follow-up, group D+ had 2.2 times (95% CI: 1.1-4.3) (p = 0.02) lower median CRP levels compared with group D-. CONCLUSIONS Seven weeks high-dose vitamin D treatment reduces the need for later infliximab dose-escalation and reduces inflammatory markers. EudraCT no. 2013-000971-34.
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Affiliation(s)
- Mia Bendix
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, 8200 Aarhus, Denmark; (A.D.); (S.P.J.); (J.F.D.); (J.A.)
- Medical Department, Randers Regional Hospital, 8930 Randers, Denmark
- Correspondence:
| | - Anders Dige
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, 8200 Aarhus, Denmark; (A.D.); (S.P.J.); (J.F.D.); (J.A.)
| | - Søren Peter Jørgensen
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, 8200 Aarhus, Denmark; (A.D.); (S.P.J.); (J.F.D.); (J.A.)
| | - Jens Frederik Dahlerup
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, 8200 Aarhus, Denmark; (A.D.); (S.P.J.); (J.F.D.); (J.A.)
| | - Bo Martin Bibby
- Department of Public Health—Department of Biostatistics, Aarhus University, 8000 Aarhus, Denmark;
| | - Bent Deleuran
- Department of Rheumatology, Aarhus University Hospital, 8200 Aarhus, Denmark;
- Department of Biomedicine, Aarhus University, 8000 Aarhus, Denmark
| | - Jørgen Agnholt
- Department of Hepatology and Gastroenterology, Aarhus University Hospital, 8200 Aarhus, Denmark; (A.D.); (S.P.J.); (J.F.D.); (J.A.)
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25
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Battistini C, Ballan R, Herkenhoff ME, Saad SMI, Sun J. Vitamin D Modulates Intestinal Microbiota in Inflammatory Bowel Diseases. Int J Mol Sci 2020; 22:E362. [PMID: 33396382 PMCID: PMC7795229 DOI: 10.3390/ijms22010362] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 12/26/2020] [Accepted: 12/28/2020] [Indexed: 02/06/2023] Open
Abstract
Inflammatory bowel disease (IBD) is a chronic inflammation of the gastrointestinal tract (GIT), including Crohn's disease (CD) and ulcerative colitis (UC), which differ in the location and lesion extensions. Both diseases are associated with microbiota dysbiosis, with a reduced population of butyrate-producing species, abnormal inflammatory response, and micronutrient deficiency (e.g., vitamin D hypovitaminosis). Vitamin D (VitD) is involved in immune cell differentiation, gut microbiota modulation, gene transcription, and barrier integrity. Vitamin D receptor (VDR) regulates the biological actions of the active VitD (1α,25-dihydroxyvitamin D3), and is involved in the genetic, environmental, immune, and microbial aspects of IBD. VitD deficiency is correlated with disease activity and its administration targeting a concentration of 30 ng/mL may have the potential to reduce disease activity. Moreover, VDR regulates functions of T cells and Paneth cells and modulates release of antimicrobial peptides in gut microbiota-host interactions. Meanwhile, beneficial microbial metabolites, e.g., butyrate, upregulate the VDR signaling. In this review, we summarize the clinical progress and mechanism studies on VitD/VDR related to gut microbiota modulation in IBD. We also discuss epigenetics in IBD and the probiotic regulation of VDR. Furthermore, we discuss the existing challenges and future directions. There is a lack of well-designed clinical trials exploring the appropriate dose and the influence of gender, age, ethnicity, genetics, microbiome, and metabolic disorders in IBD subtypes. To move forward, we need well-designed therapeutic studies to examine whether enhanced vitamin D will restore functions of VDR and microbiome in inhibiting chronic inflammation.
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Affiliation(s)
- Carolina Battistini
- Department of Pharmaceutical and Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, São Paulo, SP 05508-000, Brazil; (C.B.); (R.B.); (M.E.H.)
- Food Research Center, University of São Paulo, Rua do Lago, 250, São Paulo, SP 05508-080, Brazil
| | - Rafael Ballan
- Department of Pharmaceutical and Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, São Paulo, SP 05508-000, Brazil; (C.B.); (R.B.); (M.E.H.)
- Food Research Center, University of São Paulo, Rua do Lago, 250, São Paulo, SP 05508-080, Brazil
| | - Marcos Edgar Herkenhoff
- Department of Pharmaceutical and Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, São Paulo, SP 05508-000, Brazil; (C.B.); (R.B.); (M.E.H.)
- Food Research Center, University of São Paulo, Rua do Lago, 250, São Paulo, SP 05508-080, Brazil
| | - Susana Marta Isay Saad
- Department of Pharmaceutical and Biochemical Technology, School of Pharmaceutical Sciences, University of São Paulo, Av. Lineu Prestes, 580, São Paulo, SP 05508-000, Brazil; (C.B.); (R.B.); (M.E.H.)
- Food Research Center, University of São Paulo, Rua do Lago, 250, São Paulo, SP 05508-080, Brazil
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, IL 60612, USA
- Department of Microbiology and Immunology, UIC Cancer Center, University of Illinois at Chicago, Chicago, IL 60612, USA
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26
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Abstract
INTRODUCTION: Primary sclerosing cholangitis (PSC) is a cholestatic liver disorder that is frequently associated with ulcerative colitis (UC). Patients with PSC and UC (PSC-UC) have a higher risk of colorectal neoplasia compared with patients with UC. The oncogenic properties of microRNA-346 (miR-346) have been recently reported. We investigated the expression of miR-346 and its 2 target genes, the receptor of vitamin D (VDR), and the tumor necrosis factor-α (TNF-α), which are known to modulate carcinogenesis. METHODS: Ascending and sigmoid colon biopsies were obtained from patients with PSC, PSC and UC (PSC-UC), UC, and healthy controls (n = 10 in each group). Expressions of VDR, TNF-α, 18S RNA, p27Kip1, miR-346, and reference microRNA, miR-191, were evaluated by real-time PCR using human TaqMan Gene Expression and TaqMan MicroRNA Assays. Functional studies with miR-346 mimic and inhibitor were conducted in HepG2 and Caco-2 cells. The effect of ursodeoxycholic acid on miR-346 expression was examined in Caco-2 cells. RESULTS: An increased expression of miR-346 in the ascending colon of PSC-UC was observed (P < 0.001 vs all groups). In patients with UC, an exceptionally low colonic expression of miRNA-346 was accompanied by the extensive upregulation of VDR and TNF-α genes. A functional in vitro analysis demonstrated that inhibition of miR-346 resulted in the upregulation of VDR and TNF-α, whereas the induction of miR-346 activity suppressed VDR, TNF-α, and p27Kip1. DISCUSSION: The upregulation of miRNA-346 in the colon of patients with PSC may be responsible for the disturbance of VDR and TNF-α signaling pathway, which could result in an inadequate suppression of neoplasia.
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27
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Tian Y, Cui L, Lin C, Wang Y, Liu Z, Miao X. LncRNA CDKN2B-AS1 relieved inflammation of ulcerative colitis via sponging miR-16 and miR-195. Int Immunopharmacol 2020; 88:106970. [PMID: 33182065 DOI: 10.1016/j.intimp.2020.106970] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/13/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND This study was aimed to explore the differential expression of lncRNA CDKN2B-AS1-miR-195-5p/miR-16-5p axis in ulcerative colitis (UC) and its role in regulating UC pathogenesis. METHODS One hundred and eighty-seven UC patients and one hundred and fifty-two healthy volunteers were recruited, and their blood samples were collected. Inflammatory cytokines in serum were determined with ELISA, and lncRNA CDKN2B-AS1, miR-195-5p and miR-16-5p levels were detected with RT-PCR. Then pcDNA3.1-CDKN2B-AS1, si-CDKN2B-AS1, miR-195-5p mimic, miR-195-5p inhibitor, miR-16-5p mimic and miR-16-5p inhibitor were transfected into HT29 cells, and proliferation and apoptosis of the cells were assessed. Dual-luciferase reporter gene assay was implemented to identify the sponging relationship between lncRNA CDKN2B-AS1 and miR-195-5p/miR-16-5p. RESULTS CDKN2B-AS1 level was negatively correlated with levels of inflammatory cytokines, including TNF-α, IL-6 and sIL-2R, yet miR-16-5p and miR-195-5p levels were negatively correlated with the CDKN2B-AS1 level. The CDKN2B-AS1 combined with miR-16-5p and miR-195-5p also achieved an optimum efficacy in differentiating between light and medium UC, light and severe UC, as well as medium and heavy UC. Furthermore, pcDNA3.1-CDKN2B-AS1 depressed expressions of IFN-γ, IL-8, IL-1β and TNF-α in HT29 cells (P < 0.05), and strengthened proliferation of the cells (P < 0.05). CDKN2B-AS1 also sponged and regulated miR-16-5p and miR-195-5p in HT29 cells, and miR-16-5p and miR-195-5p could reverse the effect of CDKN2B-AS1 on inflammatory cytokine production, barrier function and apoptosis of HT29 cells (P < 0.05). CONCLUSION LncRNA CDKN2B-AS1 regulated inflammation of UC by sponging miR-195-5p and miR-16-5p, providing an alternative for diagnosis and treatment of UC.
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Affiliation(s)
- Yuanyuan Tian
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Lujia Cui
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Cheng Lin
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Yuxuan Wang
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China
| | - Zhanju Liu
- Department of Pathology, Haikou Hospital of Traditional Chinese Medicine, Haikou City, Hainan Province 570216, China
| | - Xinpu Miao
- Department of Gastroenterology, Hainan General Hospital & Hainan Affiliated Hospital of Hainan Medical University, Haikou City, Hainan Province 570311, China.
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Kellermann L, Jensen KB, Bergenheim F, Gubatan J, Chou ND, Moss A, Nielsen OH. Mucosal vitamin D signaling in inflammatory bowel disease. Autoimmun Rev 2020; 19:102672. [PMID: 32942038 DOI: 10.1016/j.autrev.2020.102672] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 05/14/2020] [Indexed: 12/14/2022]
Abstract
Epidemiological studies have identified vitamin D (25(OH)D) deficiency to be highly prevalent among patients with inflammatory bowel disease (IBD), and low serum levels correlate with a higher disease activity and a more complicated disease course. The link to IBD pathogenesis has been subject of investigations, primarily due to the distinct immunological functions of vitamin D signaling, including anti-inflammatory and anti-fibrotic actions. Vitamin D is a pleiotropic hormone that executes its actions on cells through the vitamin D receptor (VDR). A leaky gut, i.e. an insufficient intestinal epithelial barrier, is thought to be central for the pathogenesis of IBD, and emerging data support the concept that vitamin D/VDR signaling in intestinal epithelial cells (IECs) has an important role in controlling barrier integrity. Here we review the latest evidence on how vitamin D promotes the interplay between IECs, the gut microbiome, and immune cells and thereby regulate the intestinal immune response. On the cellular level, vitamin D signaling regulates tight junctional complexes, apoptosis, and autophagy, leading to increased epithelial barrier integrity, and promotes expression of antimicrobial peptides as part of its immunomodulating functions. Further, intestinal VDR expression is inversely correlated with the severity of inflammation in patients with IBD, which might compromise the positive effects of vitamin D signaling in patients with flaring disease. Efforts to reveal the role of vitamin D in the pathophysiology of IBD will pave the road for the invention of more rational treatment strategies of this debilitating disease in the future.
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Affiliation(s)
- Lauge Kellermann
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark.
| | - Kim Bak Jensen
- Biotech Research and Innovation Centre (BRIC), University of Copenhagen, DK-2200 Copenhagen N, Denmark; Novo Nordisk Foundation Center for Stem Cell Biology, Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen N, Denmark
| | - Fredrik Bergenheim
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
| | - John Gubatan
- Division of Gastroenterology and Hepatology, Dept. of Medicine, Stanford University School of Medicine, Redwood City, CA, USA
| | - Naomi D Chou
- Division of Gastroenterology and Hepatology, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Alan Moss
- Boston Medical Center & Boston University, Boston, MA, USA
| | - Ole Haagen Nielsen
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, DK-2730 Herlev, Denmark
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Muthusami S, Ramachandran IK, Babu KN, Krishnamoorthy S, Guruswamy A, Queimado L, Chaudhuri G, Ramachandran I. Role of Inflammation in the Development of Colorectal Cancer. Endocr Metab Immune Disord Drug Targets 2020; 21:77-90. [PMID: 32901590 DOI: 10.2174/1871530320666200909092908] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 07/23/2020] [Accepted: 07/29/2020] [Indexed: 11/22/2022]
Abstract
Chronic inflammation can lead to the development of many diseases, including cancer. Inflammatory bowel disease (IBD) that includes both ulcerative colitis (UC) and Crohnmp's disease (CD) are risk factors for the development of colorectal cancer (CRC). Many cytokines produced primarily by the gut immune cells either during or in response to localized inflammation in the colon and rectum are known to stimulate the complex interactions between the different cell types in the gut environment resulting in acute inflammation. Subsequently, chronic inflammation, together with genetic and epigenetic changes, have been shown to lead to the development and progression of CRC. Various cell types present in the colon, such as enterocytes, Paneth cells, goblet cells, and macrophages, express receptors for inflammatory cytokines and respond to tumor necrosis factor-alpha (TNF-α), interleukin-1 beta (IL-1β), IL-6, and other cytokines. Among the several cytokines produced, TNF-α and IL-1β are the key pro-inflammatory molecules that play critical roles in the development of CRC. The current review is intended to consolidate the published findings to focus on the role of pro-inflammatory cytokines, namely TNF-α and IL-1β, on inflammation (and the altered immune response) in the gut, to better understand the development of CRC in IBD, using various experimental model systems, preclinical and clinical studies. Moreover, this review also highlights the current therapeutic strategies available (monotherapy and combination therapy) to alleviate the symptoms or treat inflammation-associated CRC by using monoclonal antibodies or aptamers to block pro-inflammatory molecules, inhibitors of tyrosine kinases in the inflammatory signaling cascade, competitive inhibitors of pro-inflammatory molecules, and the nucleic acid drugs like small activating RNAs (saRNAs) or microRNA (miRNA) mimics to activate tumor suppressor or repress oncogene/pro-inflammatory cytokine gene expression.
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Affiliation(s)
- Sridhar Muthusami
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
| | | | - Kokelavani Nampalli Babu
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
| | - Sneha Krishnamoorthy
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore 641 021, Tamil Nadu, India
| | - Akash Guruswamy
- University of Missouri- Kansas City, College of Medicine, Kansas City, MO 64110, United States
| | - Lurdes Queimado
- Departments of Otorhinolaryngology - Head and Neck Surgery, Cell Biology, Pediatrics, The University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, United States
| | - Gautam Chaudhuri
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, United States
| | - Ilangovan Ramachandran
- Department of Obstetrics and Gynecology, David Geffen School of Medicine, University of California at Los Angeles, Los Angeles, CA 90095, United States
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30
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Li C, Chen Y, Zhu H, Zhang X, Han L, Zhao Z, Wang J, Ning L, Zhou W, Lu C, Xu L, Sang J, Feng Z, Zhang Y, Lou X, Bo X, Zhu B, Yu C, Zheng M, Li Y, Sun J, Shen Z. Inhibition of Histone Deacetylation by MS-275 Alleviates Colitis by Activating the Vitamin D Receptor. J Crohns Colitis 2020; 14:1103-1118. [PMID: 32030401 DOI: 10.1093/ecco-jcc/jjaa016] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Ulcerative colitis [UC] is a common chronic inflammatory bowel disease without curative treatment. METHODS We conducted gene set enrichment analysis to explore potential therapeutic agents for UC. Human colon tissue samples were collected to test H3 acetylation in UC. Both in vivo and in vitro colitis models were constructed to verify the role and mechanism of H3 acetylation modification in UC. Intestine-specific vitamin D receptor [VDR]-/- mice and VD [vitamin D]-deficient diet-fed mice were used to explore downstream molecular mechanisms accordingly. RESULTS According to the Connectivity Map database, MS-275 [class I histone deacetylase inhibitor] was the top-ranked agent, indicating the potential importance of histone acetylation in the pathogenesis of UC. We then found that histone H3 acetylation was significantly lower in the colon epithelium of UC patients and negatively associated with disease severity. MS-275 treatment inhibited histone H3 deacetylation, subsequently attenuating nuclear factor kappa B [NF-κB]-induced inflammation, reducing cellular apoptosis, maintaining epithelial barrier function, and thereby reducing colitis activity in a mouse model of colitis. We also identified VDR as be a downstream effector of MS-275. The curative effect of MS-275 on colitis was abolished in VDR-/- mice and in VD-deficient diet-fed mice and VDR directly targeted p65. In UC patients, histone H3 acetylation, VDR and zonulin-1 expression showed similar downregulation patterns and were negatively associated with disease severity. CONCLUSIONS We demonstrate that MS-275 inhibits histone deacetylation and alleviates colitis by ameliorating inflammation, reducing apoptosis, and maintaining intestinal epithelial barrier via VDR, providing new strategies for UC treatment.
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Affiliation(s)
- Chunxiao Li
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, China
| | - Yi Chen
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Huatuo Zhu
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiuming Zhang
- Department of Pathology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lu Han
- Department of Neuroimmunopharmacology, Beijing Institute of Pharmacology and Toxicology, Beijing, China
- Department of Neuroimmunopharmacology, State Key Laboratory of Toxicology and Medical Countermeasures, Beijing, China
| | - Zuodong Zhao
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Jinghua Wang
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Longgui Ning
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Weihua Zhou
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Chao Lu
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Lei Xu
- Department of Gastroenterology, Ningbo First Hospital, Ningbo, China
| | - Jianzhong Sang
- Department of Gastroenterology, Yuyao People's Hospital of Zhejiang Province, Ningbo, China
| | - Zemin Feng
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Yuwei Zhang
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xinhe Lou
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaochen Bo
- Department of Biotechnology, Beijing Institute of Radiation Medicine, Beijing, China
| | - Bing Zhu
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Chaohui Yu
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Min Zheng
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Youming Li
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jing Sun
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhe Shen
- Department of Gastroenterology, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
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Wu X, Zhang H, Zhang S, Yuan J, Liu J, Tang J, Li YC, Sun J. Vitamin D receptor is negatively correlated with interferon-γ-inducible protein-10 in systemic lupus erythematosus with renal involvement. EUR J INFLAMM 2020. [DOI: 10.1177/2058739220942333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The vitamin D receptor (VDR) plays an important role in the pathogenesis of systemic lupus erythematosus (SLE) mainly due to its anti-inflammatory and immunomodulatory activities. Interferon-inducible protein-10 (IP-10) is a chemokine found to be increased in SLE patients and correlated with severity of lupus nephritis. In this case control study, we investigated the connection between VDR expression and chemokine IP-10 in peripheral blood mononuclear cells (PBMCs) of SLE patients with or without renal involvement. 62 SLE patients and 30 healthy subjects were enrolled between 2014 and 2016. PBMC VDR mRNA and IP-10 mRNA were quantified by real-time PCR. PBMC VDR protein was measured by Western blotting. PBMC VDR mRNA and protein were downregulated, whereas IP-10 mRNA was upregulated in SLE patients with renal involvement. VDR mRNA levels were negatively correlated with systemic lupus international collaborating clinics (SLICC) renal activity scores (r = −0.423, P = 0.016) and IP-10 mRNA levels (r = −0.428, P = 0.008) in SLE with renal involvement. This study demonstrates that PBMC VDR was negatively correlated with SLICC renal activity and chemokine IP-10 in SLE patients with renal involvement which suggests that VDR downregulation may be used as an indicator of renal injury in SLE patients.
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Affiliation(s)
- Xueqin Wu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Shuang Zhang
- Department of Nephrology, The First People’s Hospital of Changde City, Changde, Hunan, China
| | - Jinzhong Yuan
- Department of Rheumatology and Immunology, The Third Xiangya Hospital, Central South University, Changsha,Hunan, China
| | - Jishi Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Juan Tang
- Department of Rheumatology and Immunology, The Third Xiangya Hospital, Central South University, Changsha,Hunan, China
| | - Yan Chun Li
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, IL, USA
| | - Jian Sun
- Department of Rheumatology and Immunology, The Third Xiangya Hospital, Central South University, Changsha,Hunan, China
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Deng X, Shang L, Du M, Yuan L, Xiong L, Xie X. Mechanism underlying the significant role of the miR-4262/SIRT1 axis in children with inflammatory bowel disease. Exp Ther Med 2020; 20:2227-2235. [PMID: 32765699 PMCID: PMC7401569 DOI: 10.3892/etm.2020.8918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 05/15/2020] [Indexed: 11/06/2022] Open
Abstract
Inflammatory bowel disease (IBD) is a term used to describe chronic and recurrent gastrointestinal disease. In total, >2 million individuals worldwide have been diagnosed with IBD, including ulcerative colitis (UC), Crohn's disease (CD) and indeterminate colitis. There is accumulating evidence to indicate that microRNAs (miRNAs or miRs) are involved in the development and progression of IBD. miR-4262, an underlying promoter in tumor diseases, has been reported to regulate inflammatory responses. However, the potential mechanisms underlying the role of miR-4262 in IBD remain unknown. The present study attempted to explore the role and mechanisms of miR-4262 in IBD. Firstly, reverse transcription-quantitative PCR (RT-qPCR) was used to detect the expression of miR-4262 in 30 IBD colonic mucosa tissues, 30 normal tissues, 2% dextran sulfate sodium (DSS)-treated Caco-2 cells and normal cells. It was demonstrated that the expression levels of miR-4262 in IBD colonic mucosa tissues and 2% DSS-stimulated Caco-2 cells were markedly higher compared with those in the control groups. Target gene prediction databases and dual-luciferase reporter assays were then used, and sirtuin 1 (SIRT1) was identified as a target gene of miR-4262. Furthermore, the levels of SIRT1 in 2% DSS-stimulated Caco-2 cells and IBD colonic mucosa tissues were suppressed compared with the corresponding control groups. In addition, it was observed that miR-4262 negatively regulated SIRT1 expression in Caco-2 cells. Thereafter, Caco-2 cells were treated with inhibitor control, miR-4262 inhibitor, control-siRNA or SIRT1-siRNA for 48 h, followed by 2% DSS treatment for 4 days. The secretion of inflammatory factors was analyzed via ELISA and RT-qPCR. MTT assay, flow cytometry and western blot analysis were performed to assess cell viability, apoptosis and NF-κB signaling pathway-related protein levels, respectively. The results indicated that DSS enhanced the inflammatory response, suppressed cell viability and promoted cell apoptosis, and this was decreased following transfection with an miR-4262 inhibitor. In addition, 2% DSS upregulated p-p65 expression and enhanced the ratio of p-p65/p65, while the miR-4246 inhibitor exerted an opposite effect. All the effects of miR-4262 inhibitor on Caco-2 cells were eliminated following transfection with SIRT1-siRNA. It was thus concluded that miR-4262 may serve a role in the progression of IBD via targeting SIRT1, and miR-4262/SIRT1 may represent a potential target for the diagnosis and treatment of IBD.
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Affiliation(s)
- Xiaozhi Deng
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
| | - Lihong Shang
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
| | - Min Du
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
| | - Lan Yuan
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
| | - Lijing Xiong
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
| | - Xiaoli Xie
- Department of Children's Gastroenterology, Chengdu Women's and Children's Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 611731, P.R. China
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Fakhoury HMA, Kvietys PR, AlKattan W, Anouti FA, Elahi MA, Karras SN, Grant WB. Vitamin D and intestinal homeostasis: Barrier, microbiota, and immune modulation. J Steroid Biochem Mol Biol 2020; 200:105663. [PMID: 32194242 DOI: 10.1016/j.jsbmb.2020.105663] [Citation(s) in RCA: 100] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 02/28/2020] [Accepted: 03/13/2020] [Indexed: 02/07/2023]
Abstract
Vitamin D plays a pivotal role in intestinal homeostasis. Vitamin D can impact the function of virtually every cell in the gut by binding to its intracellular receptor (VDR) and subsequently transcribing relevant genes. In the lumen, the mucus layer and the underlying epithelium serve to keep resident microbiota at bay. Vitamin D ensures an appropriate level of antimicrobial peptides in the mucus and maintains epithelial integrity by reinforcing intercellular junctions. Should bacteria penetrate the epithelial layer and enter the interstitium, immune sentinel cells (e.g. macrophages, dendritic cells, and innate lymphoid cells) elicit inflammation and trigger the adaptive immune response by activating Th1/Th17 cells. Vitamin D/VDR signaling in these cells ensures clearance of the bacteria. Subsequently, vitamin D also quiets the adaptive immune system by suppressing the Th1/Th17 cells and favoring Treg cells. The importance of vitamin D/VDR signaling in intestinal homeostasis is evidenced by the development of a chronic inflammatory state (e.g. IBD) when this signaling system is disrupted.
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Affiliation(s)
- Hana M A Fakhoury
- Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia.
| | - Peter R Kvietys
- Department of Physiology, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Wael AlKattan
- Department of Surgery, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Fatme Al Anouti
- College of Natural and Health Sciences, Department of Public Health and Nutrition, Zayed University, Abu Dhabi, United Arab Emirates
| | - Muhammad Affan Elahi
- Department of Biochemistry and Molecular Medicine, College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
| | - Spyridon N Karras
- Division of Endocrinology and Metabolism and Diabetes Center, First Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, AHEPA University Hospital, Thessaloniki, Greece
| | - William B Grant
- Director, Sunlight, Nutrition, and Health Research Center, San Francisco, CA, USA
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Liu F, Wang X, Geng H, Bu HF, Wang P, De Plaen IG, Yang H, Qian J, Tan XD. Interferon-γ inhibits sirtuin 6 gene expression in intestinal epithelial cells through a microRNA-92b-dependent mechanism. Am J Physiol Cell Physiol 2020; 318:C732-C739. [PMID: 32049548 DOI: 10.1152/ajpcell.00335.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Sirtuin 6 (Sirt6) is predominantly expressed in epithelial cells in intestinal crypts. It plays an important role in protecting intestinal epithelial cells against inflammatory injury. Previously, we found that colitis is associated with the downregulation of Sirt6 protein in the intestines. Here, we report that murine interferon-γ (Ifnγ) inhibits Sirt6 protein but not mRNA expression in young adult mouse colonocytes (YAMC, a mouse colonic epithelial cell line) in a dose- and time-dependent manner. Using microRNA array analysis, we showed that Ifnγ induces expression of miR-92b in YAMC cells. With in silico analysis, we found that the Sirt6 3'-untranslated region (UTR) contains a putative binding site for miR-92b. Luciferase assay showed that Ifnγ inhibited Sirt6 3'-UTR activity and this effect was mimicked by miR-92b via directly targeting the miR-92b seed site in the 3'-UTR of Sirt6 mRNA. Furthermore, Western blot demonstrated that miR-92b downregulated Sirt6 protein expression in YAMC cells. Blocking miR-92b with a specific inhibitor attenuated the inhibitory effect of Ifnγ on Sirt6 protein expression in the cells. Collectively, our data suggest that Ifnγ inhibits Sirt6 protein expression in intestinal epithelial cells via a miR-92b-mediated mechanism. miR-92b may be a novel therapeutic target for rescuing Sirt6 protein levels in intestinal epithelial cells, thereby protecting against intestinal mucosal injury caused by inflammation.
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Affiliation(s)
- Fangyi Liu
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.,Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Xiao Wang
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Hua Geng
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Heng-Fu Bu
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Peng Wang
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
| | - Isabelle G De Plaen
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.,Division of Neonatology, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois
| | - Hong Yang
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Jiaming Qian
- Department of Gastroenterology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, People's Republic of China
| | - Xiao-Di Tan
- Division of Pediatric Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Center for Intestinal and Liver Inflammation Research, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, Illinois.,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, Illinois.,Department of Pathology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois
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黄 雨, 张 浩, 张 双, 孙 剑. [Vitamin D receptor and monocyte chemoattractant protein-1 expressions in peripheral blood mononuclear cells in patients with systemic lupus erythemaotsus]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2020; 40:99-103. [PMID: 32376549 PMCID: PMC7040761 DOI: 10.12122/j.issn.1673-4254.2020.01.16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To detect the expressions of vitamin D receptor (VDR) in peripheral blood monocytes (PBMCs) and its association with monocyte chemoattractant protein-1 (MCP-1) in patients with systemic lupus erythemaotsus (SLE). METHODS We examined the expressions of VDR and MCP-1 mRNAs in the PBMCs in 60 SLE patients and 28 healthy individuals using real- time quantitative PCR. We also detected the expression of VDR protein in the PBMCs using Western blotting and peripheral blood MCP-1 level using ELISA for these participants. The correlation of VDR and MCP-1 expressions with the disease activity index of SLE (SLEDAI) of the patients were analyzed. RESULTS The expressions of VDR mRNA and protein in the PBMCs were significantly lower in patients with SLE than in the healthy individuals (P < 0.01), and that in the patients with active disease was lower than in remission (P < 0.05). The MCP-1 mRNA expression in the PBMCs and its serum levels were significantly increased in SLE patients as compared with the healthy individuals (P < 0.01), and the increase was significantly more obvious in the patients with active disease than in those in remission (P < 0.01). Pearson correlation analysis showed that VDR mRNA in the PBMCs was negatively correlated with SLEDAI (r=-0.417, P=0.001); negative correlations were also found between VDR mRNA and MCP-1 mRNA(r=-0.554, P=0.000) and between VDR protein expression and serum MCP-1 level (r=-0.400, P=0.028). CONCLUSIONS The down-regulation of VDR expression in the PBMC is negatively correlated with the disease activity of SLE. VDR may play an important role in the pathogenesis of SLE by affecting the expression of MCP-1.
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Affiliation(s)
- 雨茜 黄
- />中南大学湘雅三医院肾病风湿科,湖南 长沙 410013Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - 浩 张
- />中南大学湘雅三医院肾病风湿科,湖南 长沙 410013Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - 双 张
- />中南大学湘雅三医院肾病风湿科,湖南 长沙 410013Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha 410013, China
| | - 剑 孙
- />中南大学湘雅三医院肾病风湿科,湖南 长沙 410013Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University, Changsha 410013, China
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Du J, Gao R, Wang Y, Nguyen T, Yang F, Shi Y, Liu T, Liao W, Li R, Zhang F, Ge X, Zhao B. MicroRNA-26a/b have protective roles in oral lichen planus. Cell Death Dis 2020; 11:15. [PMID: 31907356 PMCID: PMC6944705 DOI: 10.1038/s41419-019-2207-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 12/19/2022]
Abstract
Oral lichen planus (OLP) is a kind of oral epithelial disorder featured with keratinocyte apoptosis and inflammatory reaction. The pathogenesis of OLP remains an enigma. Herein, we showed that the levels of miR-26a/b were robustly down-regulated in oral mucosal biopsies, serum and saliva in OLP patients compared with healthy control. Moreover, we found the binding sites of vitamin D receptor (VDR) in the promoter regions of miR-26a/b genes and proved that the induction of miR-26a/b was VDR dependent. The reduction of miR-26a/b expression was also detected in the oral epithelium of vitamin D deficient or VDR knockout mice. miR-26a/b inhibitors enhanced apoptosis and Type 1T helper (Th1) cells-related cytokines production in oral keratinocytes, whereas miR-26a/b mimics were protective. Mechanistically, we analyzed miRNA target genes and confirmed that miR-26a/b blocked apoptosis by directly targeting Protein Kinase C δ (PKCδ) which promotes cellular apoptotic processes. Meanwhile, miR-26a/b suppressed Th1-related cytokines secretion through targeting cluster of the differentiation 38 (CD38). In accordant with miR-26a/b decreases, PKCδ and CD38 levels were highly elevated in OLP patients’ samples. Taken together, our present investigations suggest that vitamin D/VDR-induced miR-26a/b take protective functions in OLP via both inhibiting apoptosis and impeding inflammatory response in oral keratinocytes.
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Affiliation(s)
- Jie Du
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China. .,Institute of Biomedical Research, Shanxi Medical University, Taiyuan, Shanxi, China.
| | - Ruifang Gao
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Yimei Wang
- Department of Endodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Tivoli Nguyen
- Division of Biological Sciences, Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Fang Yang
- Department of Periodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Yongyan Shi
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Tianjing Liu
- Department of Pediatric Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, China
| | - Wang Liao
- Department of Cardiology, Hainan General Hospital, Hainan Clinical Medicine Research Institution, Haikou, China
| | - Ran Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Fang Zhang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Xuejun Ge
- Department of Periodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China
| | - Bin Zhao
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China. .,Department of prosthodontics, Shanxi Medical University School and Hospital of Stomatology, Taiyuan, Shanxi, China.
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Mechanisms Underlying Bone Loss Associated with Gut Inflammation. Int J Mol Sci 2019; 20:ijms20246323. [PMID: 31847438 PMCID: PMC6940820 DOI: 10.3390/ijms20246323] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/29/2019] [Accepted: 12/10/2019] [Indexed: 12/11/2022] Open
Abstract
Patients with gastrointestinal diseases frequently suffer from skeletal abnormality, characterized by reduced bone mineral density, increased fracture risk, and/or joint inflammation. This pathological process is characterized by altered immune cell activity and elevated inflammatory cytokines in the bone marrow microenvironment due to disrupted gut immune response. Gastrointestinal disease is recognized as an immune malfunction driven by multiple factors, including cytokines and signaling molecules. However, the mechanism by which intestinal inflammation magnified by gut-residing actors stimulates bone loss remains to be elucidated. In this article, we discuss the main risk factors potentially contributing to intestinal disease-associated bone loss, and summarize current animal models, illustrating gut-bone axis to bridge the gap between intestinal inflammation and skeletal disease.
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Abstract
Leprosy is a chronic infectious disease of the skin and peripheral nerves that presents a strong link with the host genetic background. Different approaches in genetic studies have been applied to leprosy and today leprosy is among the infectious diseases with the greatest number of genetic risk variants identified. Several leprosy genes have been implicated in host immune response to pathogens and point to specific pathways that are relevant for host defense to infection. In addition, host genetic factors are also involved in the heterogeneity of leprosy clinical manifestations and in excessive inflammatory responses that occur in some leprosy patients. Finally, genetic studies in leprosy have provided strong evidence of pleiotropic effects between leprosy and other complex diseases, such as immune-mediated or neurodegenerative diseases. These findings not only impact on the field of leprosy and infectious diseases but also make leprosy a good model for the study of complex immune-mediated diseases. Here, we summarize recent genetic findings in leprosy susceptibility and discuss the overlap of the genetic control in leprosy with Parkinson's disease and inflammatory bowel disease. Moreover, some limitations, challenges, and potential new avenues for future genetics studies of leprosy are also discussed in this review.
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Yao B, He J, Yin X, Shi Y, Wan J, Tian Z. The protective effect of lithocholic acid on the intestinal epithelial barrier is mediated by the vitamin D receptor via a SIRT1/Nrf2 and NF-κB dependent mechanism in Caco-2 cells. Toxicol Lett 2019; 316:109-118. [PMID: 31472180 DOI: 10.1016/j.toxlet.2019.08.024] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 12/17/2022]
Abstract
Lithocholic acid (LCA) is both a secondary bile acid and a vitamin D receptor (VDR) ligand. The VDR is activated by 1,25-dihydroxy vitamin D3 and plays an important role in maintaining integrity of the intestinal mucosal barrier. LCA can also substitute for vitamin D to carry out the in vivo functions of vitamin D. However, it is unclear whether activation of the VDR by LCA affects mucosal barrier function. In the present study, we researched the protective effect of LCA on tumor necrosis factor-alpha (TNF-α)-induced intestinal epithelial barrier dysfunction in Caco-2 cells of the human epithelial intestinal adenocarcinoma cell line. Caco-2 cell monolayers were pretreated with LCA and then exposed to 100 ng/mL TNF-α. The results showed that LCA alleviated the decrease in transepithelial electrical resistance and the increase in FITC-Dextran flux induced by TNF-α. LCA ameliorated the TNF-α-induced decrease in protein expression and distribution of ZO-1, E-cadherin, Occludin, and Claudin-1, which are tight junction markers. Additionally, the LCA treatment effectively counteracted TNF-α-mediated downregulation of silent information regulator 1 (SIRT1), nuclear factor erythroid2-related factor 2 (Nrf2), and heme oxygenase-1, which are related to oxidative stress. Increases in NF-κB p-p65 and p-IκB-α induced by TNF-α were significantly inhibited by LCA. Considering all these, the present study indicates that LCA has a significant protective effect on TNF-α-induced injury of intestinal barrier function through the VDR and suggests that suppressing NF-κB signaling and activating the SIRT1/Nrf2 pathway might be one of the mechanisms underlying the protective effect of LCA.
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Affiliation(s)
- Baiyu Yao
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China
| | - Jingni He
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China
| | - Xin Yin
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China
| | - Yang Shi
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China
| | - Jun Wan
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China
| | - Zhong Tian
- Department of General Surgery, Shengjing Hospital Affiliated to China Medical University, Shenyang 110000, Liaoning Province, China.
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Vitamin D receptor expression in peripheral blood mononuclear cells is inversely associated with disease activity and inflammation in lupus patients. Clin Rheumatol 2019; 38:2509-2518. [PMID: 31104216 DOI: 10.1007/s10067-019-04594-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/23/2019] [Accepted: 05/06/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Systemic lupus erythematosus (SLE) is characterized by uncontrolled production of pro-inflammatory cytokines. Vitamin D receptor (VDR) has potent anti-inflammatory activities. The aim of this study was to examine the correlation between VDR expression and inflammation and disease activity in patients with SLE. METHODS Ninety-five SLE patients were recruited and divided into two groups, active and inactive, according to their SLE disease activity index (SLEDAI)-2 K, and 40 healthy individuals served as controls. The expression of VDR and NF-κB p65 in peripheral blood mononuclear cells (PBMCs) was determined by quantitative RT-PCR and Western blotting. VDR expression was correlated with inflammatory and diseases parameters in SLE patients. VDR regulation was also studied in THP-1 and Jurkat cell lines. RESULTS PBMC VDR expression was downregulated in SLE patients, especially in the active SLE group. VDR mRNA levels were negatively correlated with SLEDAI-2 K (r = - 0.348, P = 0.001), Systemic Lupus International Collaborating Clinics (SLICC) renal activity scores (r = - 0.346, P = 0.014), and proteinuria (r = - 0.309, P = 0.002) and positively associated with serum complement C3 levels (r = 0.316, P = 0.002). Multiple stepwise regression analysis indicated that PBMC VDR downregulation was an independent risk factor for SLEDAI-2 K. VDR levels were also negatively correlated with NF-κB p65 (r = - 0.339, P = 0.001), TNF-α (r = - 0.268, P = 0.009), and IL-6 (r = - 0.313, P = 0.002) levels. In monocyte and T lymphocyte cell lines, TNF-α suppressed VDR expression, whereas 1,25-dihydroxyvitamin D blocked TNF-α-induced VDR downregulation. CONCLUSION PBMC VDR expression is inversely associated with disease activity and inflammation in SLE patients, and VDR downregulation is likely driven by inflammation.
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Abstract
Vitamin D has a complex role in the pathogenesis of inflammatory bowel disease (IBD), which is still under investigation. We conducted a literature search using PubMed through December 2018 through the use of relevant search terms. We found an abundance of evidence to support the role of vitamin D in regulating the innate and adaptive arms of the immune system. The pathogenesis of IBD implicates the immune dysregulation of these immune system components. Proof of concept of the vitamin’s role in the pathogenesis of IBD is the mapping of the vitamin D receptor in a region of chromosome 12, where IBD is also mapped, and specific VDR polymorphisms’ link to IBD phenotypes. Further research is needed to better delineate vitamin D’s role in preventing IBD and its potential as a therapeutic target for this disease.
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Ge X, Wang L, Li M, Xu N, Yu F, Yang F, Li R, Zhang F, Zhao B, Du J. Vitamin D/VDR signaling inhibits LPS-induced IFNγ and IL-1β in Oral epithelia by regulating hypoxia-inducible factor-1α signaling pathway. Cell Commun Signal 2019; 17:18. [PMID: 30813930 PMCID: PMC6391768 DOI: 10.1186/s12964-019-0331-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 02/20/2019] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Oral lichen planus (OLP) is known as a chronic inflammatory disease. Our recent studies have suggested that vitamin D/vitamin D receptor (VDR) signaling exerts its protective effects on oral keratinocyte apoptosis by regulating microRNA-802 and p53-upregulated modulator of apoptosis (PUMA), but its roles in oral epithelial inflammatory responses in OLP are still unknown. Herein, we identify lipopolysaccharide (LPS) is able to enhance interferon gamma (IFNγ) and interleukin-1 beta (IL-1β) productions in human oral keratinocytes (HOKs) dependent on hypoxia-inducible factor-1α (HIF-1α). METHODS HIF-1α and cytokines levels in HOKs were investigated by real-time PCR and western blotting after LPS challenge. The effects of 1,25(OH)2D3 on LPS-induced HIF-1α and cytokines were tested by real-time PCR, western blotting, siRNA-interference and plasmids transfection techniques. The roles of 1,25(OH)2D3 in regulating HIF-1α levels were investigated using western blotting, siRNA-interference, plasmids transfection and Chromatin Immunoprecipitation (ChIP) assays. Finally, HIF-1α, IFNγ and IL-1β expressions in oral epithelia derived from mice and individuals were measured by real-time PCR, western blotting and immunohistochemical staining. RESULTS As a critical regulator, vitamin D suppresses LPS-induced HIF-1α to block IFNγ and IL-1β productions. Mechanistically, vitamin D inactivates nuclear factor-κB (NF-κB) pathway and up-regulates von Hippel-Lindau (VHL) levels, leading to HIF-1α reduction. Moreover, HIF-1α status of oral epithelia is elevated in VDR-/- mie as well as in VDR-deficient human biopsies, accompanied with increased IFNγ and IL-1β. CONCLUSION Collectively, this study uncovers an unrecognized roles of vitamin D/VDR signaling in regulating cytokines in oral keratinocytes and reveals the molecular basis of it.
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Affiliation(s)
- Xuejun Ge
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Lixiang Wang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Mengdi Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Na Xu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Feiyan Yu
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Fang Yang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Ran Li
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Fang Zhang
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Bin Zhao
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China
| | - Jie Du
- Department of Oral Medicine, Shanxi Medical University School and Hospital of Stomatology, NO. 56 Xinjian South Road, Taiyuan, 030001, Shanxi, China. .,Institute of Biomedical Research, Shanxi Medical University, Taiyuan, Shanxi, China.
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Sun J, Zhang S, Liu JS, Gui M, Zhang H. Expression of vitamin D receptor in renal tissue of lupus nephritis and its association with renal injury activity. Lupus 2019; 28:290-294. [PMID: 30691345 DOI: 10.1177/0961203319826704] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective Vitamin D receptor (VDR) has potent anti-inflammatory activities. VDR gene polymorphism has been linked with systemic lupus erythematosus (SLE). However, its expression in the kidney has not been evaluated. This study aimed to investigate the relationship between VDR expression and renal pathology as well as clinical manifestations in lupus nephritis (LN). Methods A total of 20 renal biopsy specimens from 35 patients with LN were classified according to the International Society of Nephrology/Renal Pathology Society 2003 LN-type standards pathological type, and the activity index and chronicity index were determined. Five normal renal tissue samples were obtained from surrounding areas distal to nephronophthisis or renal tumors (>2 cm). The expression of VDR was assessed by immunohistochemistry. The relationships between VDR expression and histological injury index, proteinuria and Systemic Lupus International Collaborating Clinics (SLICC) renal activity scores were analyzed. Results As compared to the control group, the expression of VDR in the LN group was lower ( p < 0.001) and negatively correlated with activity index (r = –0.548, p = 0.012) but not with chronicity index (r = –0.277, p = 0.236). The expression of VDR in renal tissue was also associated with SLICC renal activity scores (r = –0.470, p = 0.037). Conclusion The down-regulation of VDR expression in renal tissues of LN patients was negatively correlated with renal activity and injury severity.
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Affiliation(s)
- J Sun
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - S Zhang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - J S Liu
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - M Gui
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - H Zhang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
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Zhou Y, Sun YC, Gao KW, Zhu L. Regulatory effect of miR-346/DKK3 axis on tumor cell proliferation in colon cancer. Shijie Huaren Xiaohua Zazhi 2018; 26:1979-1988. [DOI: 10.11569/wcjd.v26.i34.1979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the regulatory effect of the miR-346/DKK3 axis on tumor cell proliferation in colon cancer.
METHODS The expression of miR-346 in normal colon epithelial cells and colon cancer cells as well as in colon tissues and noncancerous tissues was examined by RT-PCR. The effect of miR-346 on the proliferation of colon cancer cells was examined by MTT assay. Flow cytometry was used to detect the effect of miR-346 on the colon cancer cell cycle. The dual luciferase reporter gene assay was used to validate the binding relationship between miR-346 and DKK3. The effect of DKK3 on the function of colon cancer cells was studied by transfecting colon cancer cells with siRNA and pcDNA-DKK3.
RESULTS The expression of miR-346 in colon cancer cells was significantly upregulated. Overexpression of miR-346 promoted the proliferation of colon cancer cells. The proportion of cells in G1 phase decreased, and the proportion of cells in S phase and G2/M phase increased. The dual luciferase reporter assay showed that miR-346 bound directly to the 3'-UTR of DKK3. Inhibition of DKK3 using siRNA promoted the proliferation of colon cancer cells, reduced the proportion of cells in G1 phase and increased the proportion of cells in S phase and G2/M phase. Further, overexpression of DKK3 partially abrogated the proliferative effect of miR-346 on colon cancer cells.
CONCLUSION MiR-346 promotes the proliferation of colon cancer cells by inhibiting DKK3.
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Affiliation(s)
- Yi Zhou
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Yun-Chen Sun
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Ke-Wei Gao
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
| | - Liang Zhu
- Department of Gastroenterology, Changzheng Hospital, Second Military Medical University, Shanghai 200003, China
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The Role of Autophagy and Related MicroRNAs in Inflammatory Bowel Disease. Gastroenterol Res Pract 2018; 2018:7565076. [PMID: 30046303 PMCID: PMC6038472 DOI: 10.1155/2018/7565076] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 04/26/2018] [Accepted: 05/15/2018] [Indexed: 12/21/2022] Open
Abstract
Accumulating evidence demonstrates that microRNA- (miR-) mediated posttranscriptional regulation plays an important role in autophagy in inflammatory bowel disease (IBD), a disease that is difficult to manage clinically because of the associated chronic recurrent nonspecific inflammation. Research indicates that microRNAs regulate autophagy via different pathways, playing an important role in the IBD process and providing a new perspective for IBD research. Related studies have shown that miR-142-3p, miR-320, miR-192, and miR-122 target NOD2, an IBD-relevant autophagy gene, to modulate autophagy in IBD. miR-142-3p, miR-93, miR-106B, miR-30C, miR-130a, miR-346, and miR-20a regulate autophagy by targeting ATG16L1 through several different pathways. miR-196 can downregulate IRGM and suppress autophagy by inhibiting the accumulation of LC3II. During the endoplasmic reticulum stress response, miR-665, miR-375, and miR-150 modulate autophagy by regulating the unfolded protein response, which may play an important role in IBD intestinal fibrosis. Regarding autophagy-related pathways, miR-146b, miR-221-5p, miR-132, miR-223, miR-155, and miR-21 regulate NF-κB or mTOR signaling to induce or inhibit autophagy in intestinal cells by releasing anti- or proinflammatory factors, respectively.
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Abstract
The biological functions of 1α,25-dihydroxyvitamin D3 are regulated by nuclear receptor vitamin D receptor (VDR). The expression level of VDR is high in intestine. VDR is an essential regulator of intestinal cell proliferation, barrier function, and immunity. Vitamin D/VDR plays a protective role in inflammatory bowel diseases (IBDs), both ulcerative colitis and Crohn's disease. Emerging evidence demonstrates low VDR expression and dysfunction of vitamin D/VDR signaling in patients with IBD. Here, we summarize the progress made in vitamin D/VDR signaling in genetic regulation, immunity, and the microbiome in IBD. We cover the mechanisms of intestinal VDR in regulating inflammation through inhibiting the NF-ĸB pathway and activating autophagy. Recent studies suggest that the association of VDR single nucleotide polymorphisms with immune and intestinal pathology may be sex dependent. We emphasize the tissue specificity of VDR and its sex- and time-dependent effects. Furthermore, we discuss potential clinical application and future direction of vitamin D/VDR in preventing and treating IBD.
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Affiliation(s)
- Danika Bakke
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois
| | - Jun Sun
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois,Address correspondence to: Jun Sun, PhD, Division of Gastroenterology and Hepatology, Department of Medicine, University of Illinois at Chicago, 840 S. Wood Street, Room 704 CSB, MC716, Chicago, IL 60612 ()
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Abstract
Inflammatory bowel disease [IBD], including ulcerative colitis and Crohn's disease, is a chronic and unpredictable condition characterised by alternating periods of remission interspersed with relapses. In recent years, accumulating support for an immunomodulating effect of vitamin D on both the innate and the adaptive immune systems has been presented. Through the vitamin D receptor, the active form of vitamin D, 1,25[OH]2D, induces antimicrobial peptide secretion, decreases dendritic cell activity, and promotes Th2 and regulatory T cell development and activity. In addition, vitamin D promotes an increased ratio of anti-inflammatory cytokines to pro-inflammatory cytokines. Studies in IBD point to a role for vitamin D in ameliorating disease outcome. Suboptimal circulating levels of 25-hydroxyvitamin D are common in IBD and appear to be associated with an increased risk of flares, IBD-related hospitalisations and surgeries, an inadequate response to tumour necrosis factor [TNF] inhibitors, a deterioration in quality of life, and low bone mineral density. With only few available randomised double-blind, placebo-controlled studies investigating therapeutic effects of vitamin D related to IBD, further research is necessary to determine the true therapeutic potential of vitamin D, as well as to define its optimal range in serum to achieve and maintain quiescence of disease. This review aims to summarise the latest knowledge on the extraskeletal effects of vitamin D in IBD, and outlines the potential deleterious consequences of vitamin D deficiency in this patient cohort.
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Affiliation(s)
- Ole Haagen Nielsen
- Department of Gastroenterology, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Lars Rejnmark
- Department of Endocrinology and Internal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | - Alan C Moss
- Department of Medicine, Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard University, Boston, MA, USA
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Shi Y, He C, Ma C, Yu T, Cong Y, Cai W, Liu Z. Smad nuclear interacting protein 1 (SNIP1) inhibits intestinal inflammation through regulation of epithelial barrier function. Mucosal Immunol 2018; 11:835-845. [PMID: 29426045 DOI: 10.1038/mi.2017.95] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Accepted: 09/29/2017] [Indexed: 02/08/2023]
Abstract
Smad nuclear interacting protein 1 (SNIP1) has been implicated in the pathogenesis of inflammatory bowel disease (IBD). However, the mechanisms involved are still largely unknown. Our results demonstrated that SNIP1 was markedly decreased in intestinal epithelial cells (IEC) from IBD patients compared with healthy controls. Impaired expression of SNIP1 caused a significant decrease of transepithelial electrical resistance but an increase of fluorescein isothiocyanate-dextran flux in Caco-2 monolayers, whereas overexpression of SNIP1 reversed such effects. Overexpression of SNIP1 also inhibited the activity of NF-κB p65 and proinflammatory cytokine production (e.g., TNF-α, IL-1β, and IL-8) by IEC. Importantly, supplementation of exogenous SNIP1 significantly ameliorated intestinal mucosal inflammation in experimental colitis, characterized by less-severe intestinal epithelial barrier damage and decreased proinflammatory cytokine production. Our data thus demonstrated a novel mechanism whereby SNIP1 regulates intestinal inflammation through modulating intestinal epithelial barrier function. Targeting SNIP1 may provide a therapeutic approach for the treatment of IBD.
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Affiliation(s)
- Y Shi
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - C He
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - C Ma
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - T Yu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
| | - Y Cong
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas, USA.,Department of Pathology, University of Texas Medical Branch, Galveston, Texas, USA
| | - W Cai
- Department of General Surgery, Ruijin Hospital of Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Z Liu
- Department of Gastroenterology, The Shanghai Tenth People's Hospital, Tongji University, Shanghai, China
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Su YB, Li TH, Huang CC, Tsai HC, Huang SF, Hsieh YC, Yang YY, Huang YH, Hou MC, Lin HC. Chronic calcitriol supplementation improves the inflammatory profiles of circulating monocytes and the associated intestinal/adipose tissue alteration in a diet-induced steatohepatitis rat model. PLoS One 2018; 13:e0194867. [PMID: 29684027 PMCID: PMC5912737 DOI: 10.1371/journal.pone.0194867] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 03/12/2018] [Indexed: 01/10/2023] Open
Abstract
Vitamin D deficiency and up-regulated TNFα-related signals are reported to be involved in abnormalities including intestinal hyper-permeability, bacterial translocation, systemic/portal endotoxemia, intestinal/adipose tissue/hepatic inflammation, and hepatic steatosis in nonalcoholic steatohepatitis (NASH). This study aims to explore the molecular mechanisms and effects of chronic calcitriol [1,25-(OH)2D3, hormonal form of vitamin D] on gut-adipose tissue-liver axis abnormalities using a high-fat diet (HFD)-fed rat model of NASH. In HFD-fed obese rats on a 10-week calcitriol (0.3 μg/kg/TIW) or vehicle treatment (NASH-vit. D and NASH-V rats) reigme, various in vivo and in vitro experiments were undertaken. Through anti-TNFα-TNFR1-NFκB signaling effects, chronic calcitriol treatment significantly restored plasma calcitriol levels and significantly improved vitamin D receptor (VDR) expression in monocytes and the small intestine of NASH-vit. D rats. Significantly, plasma and portal endotoxin/TNFα levels, bacterial translocation to mesenteric lymph nodes, plasma DX-4000-FITC, fecal albumin-assessed intestinal hyper-permeability, over-expression of TNFα-related immune profiles in monocytes, inflammation of intestinal/mesenteric adipose tissue (MAT)/liver and hepatic steatosis were improved by chronic calcitriol treatment of NASH rats. Additionally, in vitro experiments with acute calcitriol co-incubation reversed NASH-V rat monocyte supernatant/TNFα-induced monolayer barrier dysfunction in caco-2 cells, cytokine release from MAT-derived adipocytes, and triglyceride synthesis by lean-V rat hepatocytes. Using in vivo and in vitro experiments, our study reported calcitriol signaling in the gut as well as in adipose tissue. Meanwhile, our study suggests that restoration of systemic and intestinal vitamin D deficiency using by chronic vitamin D treatment effectively reduces TNFα-mediated immunological abnormalities associated with the gut-adipose tissue-liver axis and hepatic steatosis in NASH rats.
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Affiliation(s)
- Yen-Bo Su
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Tzu-Hao Li
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Allergy and Immunology, Taipei Veterans General Hospital, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Chia-Yi Branch of Taichung Veterans General Hospital, Chiayi, Taiwan
| | - Chia-Chang Huang
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Hung-Cheng Tsai
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
| | - Shiang-Fen Huang
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Infection, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yun-Cheng Hsieh
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Ying Yang
- Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Institute of Clinical Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
- Division of General Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- * E-mail: (YYY); (HCL)
| | - Yi-Hsiang Huang
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Chih Hou
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Han-Chieh Lin
- Department of Medicine, National Yang-Ming University School of Medicine, Taipei, Taiwan
- Division of Gastroenterology and Hepatology, Taipei Veterans General Hospital, Taipei, Taiwan
- * E-mail: (YYY); (HCL)
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He L, Liu T, Shi Y, Tian F, Hu H, Deb DK, Chen Y, Bissonnette M, Li YC. Gut Epithelial Vitamin D Receptor Regulates Microbiota-Dependent Mucosal Inflammation by Suppressing Intestinal Epithelial Cell Apoptosis. Endocrinology 2018; 159:967-979. [PMID: 29228157 PMCID: PMC5788002 DOI: 10.1210/en.2017-00748] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Accepted: 11/28/2017] [Indexed: 02/08/2023]
Abstract
Recent studies show that colonic vitamin D receptor (VDR) signaling protects the mucosal epithelial barrier and suppresses colonic inflammation, but the underlying molecular mechanism remains to be fully understood. To investigate the implication of colonic VDR downregulation seen in patients with inflammatory bowel disease, we assessed the effect of gut epithelial VDR deletion on colonic inflammatory responses in an experimental colitis model. In a 2,4,6-trinitrobenzenesulfonic acid-induced colitis model, mice carrying VDR deletion in gut epithelial cells [VDRflox/flox (VDRf/f);Villin-Cre or VDRΔIEC] or in colonic epithelial cells (VDRf/f;CDX2-Cre or VDRΔCEC) developed more severe clinical colitis than VDRf/f control mice, characterized by more robust T-helper (TH)1 and TH17 responses, with greater increases in mucosal interferon (IFN)-γ+, interleukin (IL)-17+, and IFN-γ+IL-17+ T cells. Accompanying the severe mucosal inflammation was more profound colonic epithelial cell apoptosis in the mutant mice. Treatment with caspase inhibitor Q-VD-OPh dramatically reduced colitis severity and attenuated TH1 and TH17 responses in VDRΔCEC mice. The blockade of cell apoptosis also prevented the increase in mucosal CD11b+CD103+ dendritic cells (DCs), known to be critical for TH17-cell activation. Moreover, depletion of gut commensal bacteria with antibiotics eliminated the robust TH1 and TH17 responses and CD11b+CD103+ DC induction. Taken together, these observations demonstrate that gut epithelial VDR deletion aggravates epithelial cell apoptosis, resulting in increases in mucosal barrier permeability. Consequently, invading luminal bacteria activate CD11b+CD103+ DCs, which promote mucosal TH1 and TH17 responses. Therefore, gut epithelial VDR signaling controls mucosal inflammation by suppressing epithelial cell apoptosis.
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Affiliation(s)
- Lei He
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
| | - Tianjing Liu
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
- Department of Pediatrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, China
| | - Yongyan Shi
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
- Department of Pediatrics, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, China
| | - Feng Tian
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
- Department of Gastroenterology, Shengjing Hospital, China Medical University, Shenyang, Liaoning 110004, China
| | - Huiyuan Hu
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
- College of Pharmacy, China Medical University, Shenyang, Liaoning 110122, China
| | - Dilip K. Deb
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
| | - Yinyin Chen
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
- Department of Nephrology, Hunan Provincial People’s Hospital, Changsha, Hunan 410005, China
| | - Marc Bissonnette
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
| | - Yan Chun Li
- Department of Medicine, Division of Biological Sciences, The University of Chicago, Chicago, Illinois 60637
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