biostudies-literatureBernardazzi CCoordenação de Aperfeicoamento de Pessoal de Nível SuperiorNational Council for Scientific and Technological DevelopmentFundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro4616https://www.ebi.ac.uk/biostudies/studies/S-EPMC9099551biostudies-literatureUnknown23(9)<b>Background:</b> Given the role of the P2X7 receptor (P2X7R) in inflammatory bowel diseases (IBD), we investigated its role in the development and progression of colitis-associated colorectal cancer (CA-CRC). <b>Methods:</b> CA-CRC was induced in P2X7R^+/+ and P2X7R^-/- mice with azoxymethane (AOM) combined with dextran sodium sulfate (DSS). In a therapeutic protocol, P2X7R^+/+ mice were treated with a P2X7R-selective inhibitor (A740003). Mice were evaluated with follow-up video endoscopy with endoluminal ultrasound biomicroscopy. Colon tissue was analyzed for histological changes, densities of immune cells, expression of transcription factors, cytokines, genes, DNA methylation, and microbiome composition of fecal samples by sequencing for 16S rRNA. <b>ResulInternational journal of molecular sciencesThe P2X7 Receptor Promotes Colorectal Inflammation and Tumorigenesis by Modulating Gut Microbiota and the Inflammasome.PMC9099551E26/202.781/2017Finance Code 001E26/210.886/2014306634/2019-8E-26/010.001279/2015E-26/202.774/2018Castelo-Branco MTLRibeiro BEBernardazzi CCoutinho-Silva RRosas SLBSantana PTde Souza HSPLeal CPego BMachado JCThompson FfalseThe P2X7 Receptor Promotes Colorectal Inflammation and Tumorigenesis by Modulating Gut Microbiota and the Inflammasome.<b>Background:</b> Given the role of the P2X7 receptor (P2X7R) in inflammatory bowel diseases (IBD), we investigated its role in the development and progression of colitis-associated colorectal cancer (CA-CRC). <b>Methods:</b> CA-CRC was induced in P2X7R^+/+ and P2X7R^-/- mice with azoxymethane (AOM) combined with dextran sodium sulfate (DSS). In a therapeutic protocol, P2X7R^+/+ mice were treated with a P2X7R-selective inhibitor (A740003). Mice were evaluated with follow-up video endoscopy with endoluminal ultrasound biomicroscopy. Colon tissue was analyzed for histological changes, densities of immune cells, expression of transcription factors, cytokines, genes, DNA methylation, and microbiome composition of fecal samples by sequencing for 16S rRNA. <b>Resul2022-01-01T00:00:00Z2022 Apr2025-08-12T03:04:39.067Z2025-02-19T00:55:41.337ZS-EPMC90995513556301010.3390/ijms23094616