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Role of TRPV1 in colonic mucin production and gut microbiota profile [article]

Vijay Kumar, Neha Mahajan, Pragyanshu Khare, Kanthi K Kondepudi, Mahendra Bishnoi
2020 bioRxiv   pre-print

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PURPOSE: This study focuses on exploring the role of sensory cation channel Transient Receptor Potential channel subfamily Vanilloid 1 (TRPV1) in gut health, specifically mucus secretion and microflora profile in gut. METHODS AND RESULTS: We employed resiniferatoxin (ultrapotent TRPV1 agonist) induced chemo-denervation model in rats and studied the effects of TRPV1 ablation on gut mucus secretion patterns. Histological and transcriptional analysis showed substantial decrease in mucus production
more » ... as well as in expression of genes involved in goblet cells differentiation, mucin production and glycosylation. 16S metagenome analysis revealed changes in abundance of various gut bacteria, including decrease in beneficial bacteria like Lactobacillus spp and Clostridia spp. Also, TRPV1 ablation significantly decreased the levels of short chain fatty acids, i.e. acetate and butyrate. CONCLUSION: The present study provides first evidence that systemic TRPV1 ablation leads to impairment in mucus secretion and causes dysbiosis in gut. Further, it suggests to address mucin production and gut microbiota related adverse effects during the development of TRPV1 antagonism/ablation-based therapeutic and preventive strategies.
doi:10.1101/2020.04.17.046011 fatcat:nppzyyyocveurkp2apszgncffi
Citation

Vijay Kumar, Neha Mahajan, Pragyanshu Khare, Kanthi K Kondepudi, Mahendra Bishnoi. "Role of TRPV1 in colonic mucin production and gut microbiota profile." bioRxiv (2020)