Disruption of the pro-inflammatory, anti-inflammatory cytokines and tight junction proteins expression, associated with changes of the composition of the gut microbiota in patients with irritable bowel syndrome
Irritable bowel syndrome (IBS) is a pathologic condition characterized by changes in gut microbiome composition, low-grade inflammation, and disruption of intestinal wall permeability. The interaction between the gut microbiome and the disease manifestation remains unclear. The changing of tight jun...
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| description | Irritable bowel syndrome (IBS) is a pathologic condition characterized by changes in gut microbiome composition, low-grade inflammation, and disruption of intestinal wall permeability. The interaction between the gut microbiome and the disease manifestation remains unclear. The changing of tight junction proteins and cytokines expression throughout the gastrointestinal tract in IBS patients has not been studied yet. To assess the changes of gut microbiome composition, tight junction proteins, and cytokines expression of intestinal mucosa from the duodenum to the distal part of the colon in IBS patients and healthy volunteers. In 31 IBS patients (16 patients with IBS-D; 15 patients with IBS-C) and 10 healthy volunteers the expression of CLD-2, CLD-3, CLD-5, IL-2, IL-10, and TNF-[alpha] in mucosal biopsy specimens was determined by morphological and immune-histochemical methods. The qualitative and quantitative composition of the intestinal microbiota was assessed based on 16S rRNA gene sequencing in both groups of patients. The expression of IL-2 and TNF-[alpha] was significantly increased in IBS patients compared with the controls (p |
| doi_str_mv | 10.1371/journal.pone.0252930 |
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The interaction between the gut microbiome and the disease manifestation remains unclear. The changing of tight junction proteins and cytokines expression throughout the gastrointestinal tract in IBS patients has not been studied yet. To assess the changes of gut microbiome composition, tight junction proteins, and cytokines expression of intestinal mucosa from the duodenum to the distal part of the colon in IBS patients and healthy volunteers. In 31 IBS patients (16 patients with IBS-D; 15 patients with IBS-C) and 10 healthy volunteers the expression of CLD-2, CLD-3, CLD-5, IL-2, IL-10, and TNF-[alpha] in mucosal biopsy specimens was determined by morphological and immune-histochemical methods. The qualitative and quantitative composition of the intestinal microbiota was assessed based on 16S rRNA gene sequencing in both groups of patients. The expression of IL-2 and TNF-[alpha] was significantly increased in IBS patients compared with the controls (p<0.001), with a gradual increase from the duodenum to the sigmoid colon. The expression of IL-10, CLD-3, and CLD-5 in mucosal biopsy specimens of these patients was lower than in the control group (p<0.001). Increased ratios of Bacteroidetes and decreased ratios of Firmicutes were noted in IBS patients compared to healthy volunteers (p<0.05). IBS patients have impaired gut permeability and persisting low-grade inflammation throughout the gastrointestinal tract. 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the pro-inflammatory, anti-inflammatory cytokines and tight junction proteins expression, associated with changes of the composition of the gut microbiota in patients with irritable bowel syndrome</atitle><jtitle>PloS one</jtitle><date>2021-06-11</date><risdate>2021</risdate><volume>16</volume><issue>6</issue><spage>e0252930</spage><epage>e0252930</epage><pages>e0252930-e0252930</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Irritable bowel syndrome (IBS) is a pathologic condition characterized by changes in gut microbiome composition, low-grade inflammation, and disruption of intestinal wall permeability. The interaction between the gut microbiome and the disease manifestation remains unclear. The changing of tight junction proteins and cytokines expression throughout the gastrointestinal tract in IBS patients has not been studied yet. To assess the changes of gut microbiome composition, tight junction proteins, and cytokines expression of intestinal mucosa from the duodenum to the distal part of the colon in IBS patients and healthy volunteers. In 31 IBS patients (16 patients with IBS-D; 15 patients with IBS-C) and 10 healthy volunteers the expression of CLD-2, CLD-3, CLD-5, IL-2, IL-10, and TNF-[alpha] in mucosal biopsy specimens was determined by morphological and immune-histochemical methods. The qualitative and quantitative composition of the intestinal microbiota was assessed based on 16S rRNA gene sequencing in both groups of patients. The expression of IL-2 and TNF-[alpha] was significantly increased in IBS patients compared with the controls (p<0.001), with a gradual increase from the duodenum to the sigmoid colon. The expression of IL-10, CLD-3, and CLD-5 in mucosal biopsy specimens of these patients was lower than in the control group (p<0.001). Increased ratios of Bacteroidetes and decreased ratios of Firmicutes were noted in IBS patients compared to healthy volunteers (p<0.05). IBS patients have impaired gut permeability and persisting low-grade inflammation throughout the gastrointestinal tract. Changes in the gut microbiota may support or exacerbate these changes.</abstract><cop>San Francisco</cop><pub>Public Library of Science</pub><pmid>34115808</pmid><doi>10.1371/journal.pone.0252930</doi><tpages>e0252930</tpages><orcidid>https://orcid.org/0000-0002-9710-7490</orcidid><orcidid>https://orcid.org/0000-0002-6154-8163</orcidid><oa>free_for_read</oa></addata></record> |
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| source | DOAJ Directory of Open Access Journals; Public Library of Science (PLoS) Journals Open Access; EZB-FREE-00999 freely available EZB journals; PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Alcohol Antibodies Binding sites Biology Biology and Life Sciences Biopsy Care and treatment Colon Colonoscopy Computer programs Cytokines Disruption Editing Fatty acids Health aspects Immune response Inflammation Intestinal microflora Intestine Irritable bowel syndrome Localization Medicine and Health Sciences Metabolites Methodology Microbiota Microbiota (Symbiotic organisms) Molecular biology Organic solvents Pain Permeability Physical Sciences Protein expression Proteins Small intestine Software Tumor necrosis factor-TNF |
| title | Disruption of the pro-inflammatory, anti-inflammatory cytokines and tight junction proteins expression, associated with changes of the composition of the gut microbiota in patients with irritable bowel syndrome |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-20T07%3A33%3A42IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_plos_&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Disruption%20of%20the%20pro-inflammatory,%20anti-inflammatory%20cytokines%20and%20tight%20junction%20proteins%20expression,%20associated%20with%20changes%20of%20the%20composition%20of%20the%20gut%20microbiota%20in%20patients%20with%20irritable%20bowel%20syndrome&rft.jtitle=PloS%20one&rft.au=Ivashkin,%20V&rft.date=2021-06-11&rft.volume=16&rft.issue=6&rft.spage=e0252930&rft.epage=e0252930&rft.pages=e0252930-e0252930&rft.issn=1932-6203&rft.eissn=1932-6203&rft_id=info:doi/10.1371/journal.pone.0252930&rft_dat=%3Cgale_plos_%3EA664891014%3C/gale_plos_%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2540099806&rft_id=info:pmid/34115808&rft_galeid=A664891014&rft_doaj_id=oai_doaj_org_article_a12f9bcd774f4041a27be59390d7a10b&rfr_iscdi=true |