Sökning: WFRF:(Mahata K)
> (2020-2024) >
Chromogranin A regu...
Chromogranin A regulates gut permeability via the antagonistic actions of its proteolytic peptides
-
- Muntjewerff, Elke M. (författare)
- Radboud Univ Nijmegen, Radboud Inst Mol Life Sci, Dept Tumor Immunol, Med Ctr, Nijmegen, Netherlands.
-
- Tang, Kechun (författare)
- VA San Diego Healthcare Syst, San Diego, CA 92161 USA.
-
- Lutter, Lisanne (författare)
- Univ Utrecht, Ctr Translat Immunol, Med Ctr, Utrecht, Netherlands.;Univ Utrecht, Dept Gastroenterol & Hepatol, Med Ctr, Utrecht, Netherlands.
-
visa fler...
-
- Christoffersson, Gustaf (författare)
- Uppsala universitet,Integrativ Fysiologi,Science for Life Laboratory, SciLifeLab
-
- Nicolasen, Mara J. T. (författare)
- Radboud Univ Nijmegen, Radboud Inst Mol Life Sci, Dept Tumor Immunol, Med Ctr, Nijmegen, Netherlands.
-
- Gao, Hong (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA.
-
- Katkar, Gajanan D. (författare)
- Univ Calif San Diego, Dept Cellular & Mol Med, La Jolla, CA 92093 USA.
-
- Das, Soumita (författare)
- Univ Calif San Diego, Dept Pathol, La Jolla, CA 92093 USA.
-
- ter Beest, Martin (författare)
- Radboud Univ Nijmegen, Radboud Inst Mol Life Sci, Dept Tumor Immunol, Med Ctr, Nijmegen, Netherlands.
-
- Ying, Wei (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA.
-
- Ghosh, Pradipta (författare)
- Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA.
-
- El Aidy, Sahar (författare)
- Univ Groningen, Groningen Biomol Sci & Biotechnol Inst, Dept Mol Immunol & Microbiol, Groningen, Netherlands.
-
- Oldenburg, Bas (författare)
- Univ Utrecht, Dept Gastroenterol & Hepatol, Med Ctr, Utrecht, Netherlands.
-
- van den Bogaart, Geert (författare)
- Radboud Univ Nijmegen, Radboud Inst Mol Life Sci, Dept Tumor Immunol, Med Ctr, Nijmegen, Netherlands.;Univ Groningen, Groningen Biomol Sci & Biotechnol Inst, Dept Mol Immunol & Microbiol, Groningen, Netherlands.
-
- Mahata, Sushil K. (författare)
- VA San Diego Healthcare Syst, San Diego, CA 92161 USA.;Univ Calif San Diego, Dept Med, La Jolla, CA 92093 USA.
-
visa färre...
-
Radboud Univ Nijmegen, Radboud Inst Mol Life Sci, Dept Tumor Immunol, Med Ctr, Nijmegen, Netherlands VA San Diego Healthcare Syst, San Diego, CA 92161 USA. (creator_code:org_t)
- 2021-05-06
- 2021
- Engelska.
-
Ingår i: Acta Physiologica. - : John Wiley & Sons. - 1748-1708 .- 1748-1716. ; 232:2
- Relaterad länk:
-
https://pure.rug.nl/...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Aim A "leaky" gut barrier has been implicated in the initiation and progression of a multitude of diseases, for example, inflammatory bowel disease (IBD), irritable bowel syndrome and celiac disease. Here we show how pro-hormone Chromogranin A (CgA), produced by the enteroendocrine cells, and Catestatin (CST: hCgA(352-372)), the most abundant CgA-derived proteolytic peptide, affect the gut barrier. Methods Colon tissues from region-specific CST-knockout (CST-KO) mice, CgA-knockout (CgA-KO) and WT mice were analysed by immunohistochemistry, western blot, ultrastructural and flowcytometry studies. FITC-dextran assays were used to measure intestinal barrier function. Mice were supplemented with CST or CgA fragment pancreastatin (PST: CgA(250-301)). The microbial composition of cecum was determined. CgA and CST levels were measured in blood of IBD patients. Results Plasma levels of CST were elevated in IBD patients. CST-KO mice displayed (a) elongated tight, adherens junctions and desmosomes similar to IBD patients, (b) elevated expression of Claudin 2, and (c) gut inflammation. Plasma FITC-dextran measurements showed increased intestinal paracellular permeability in the CST-KO mice. This correlated with a higher ratio of Firmicutes to Bacteroidetes, a dysbiotic pattern commonly encountered in various diseases. Supplementation of CST-KO mice with recombinant CST restored paracellular permeability and reversed inflammation, whereas CgA-KO mice supplementation with CST and/or PST in CgA-KO mice showed that intestinal paracellular permeability is regulated by the antagonistic roles of these two peptides: CST reduces and PST increases permeability. Conclusion The pro-hormone CgA regulates the intestinal paracellular permeability. CST is both necessary and sufficient to reduce permeability and primarily acts by antagonizing PST.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Gastroenterologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Gastroenterology and Hepatology (hsv//eng)
Nyckelord
- Catestatin
- chromogranin A
- enteroendocrine cells
- epithelial tight junctions
- gut barrier
- inflammatory bowel disease
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
-
Muntjewerff, Elk ...
-
Tang, Kechun
-
Lutter, Lisanne
-
Christoffersson, ...
-
Nicolasen, Mara ...
-
Gao, Hong
-
visa fler...
-
Katkar, Gajanan ...
-
Das, Soumita
-
ter Beest, Marti ...
-
Ying, Wei
-
Ghosh, Pradipta
-
El Aidy, Sahar
-
Oldenburg, Bas
-
van den Bogaart, ...
-
Mahata, Sushil K ...
-
visa färre...
- Om ämnet
-
- MEDICIN OCH HÄLSOVETENSKAP
-
MEDICIN OCH HÄLS ...
-
och Klinisk medicin
-
och Gastroenterologi
- Artiklar i publikationen
-
Acta Physiologic ...
- Av lärosätet
-
Uppsala universitet