PMID- 29142285 OWN - NLM STAT- MEDLINE DCOM- 20190715 LR - 20190715 IS - 2045-2322 (Electronic) IS - 2045-2322 (Linking) VI - 7 IP - 1 DP - 2017 Nov 15 TI - Blockade of CB1 cannabinoid receptor alters gut microbiota and attenuates inflammation and diet-induced obesity. PG - 15645 LID - 10.1038/s41598-017-15154-6 [doi] LID - 15645 AB - Obesity is characterized by chronic low-grade, systemic inflammation, altered gut microbiota, and gut barrier disruption. Additionally, obesity is associated with increased activity of endocannabinoid system (eCB). However, the clear connection between gut microbiota and the eCB system in the regulation of energy homeostasis and adipose tissue inflammation and metabolism, remains to be established. We investigated the effect of treatment of mice with a cannabinoid receptor 1 (CB1) antagonist on Diet-Induced Obesity (DIO), specifically whether such a treatment that blocks endocannabinoid activity can induce changes in gut microbiota and anti-inflammatory state in adipose tissue. Blockade of CB1 attenuated DIO, inflammatory cytokines and trafficking of M1 macrophages into adipose tissue. Decreased inflammatory tone was associated with a lower intestinal permeability and decreased metabolic endotoxemia as evidenced by reduced plasma LPS level, and improved hyperglycemia and insulin resistance. 16S rRNA metagenomics sequencing revealed that CB1 blockade dramatically increased relative abundance of Akkermansia muciniphila and decreased Lanchnospiraceae and Erysipelotrichaceae in the gut. Together, the current study suggests that blocking of CB1 ameliorates Diet-Induced Obesity and metabolic disorder by modulating macrophage inflammatory mediators, and that this effect is associated with alterations in gut microbiota and their metabolites. FAU - Mehrpouya-Bahrami, Pegah AU - Mehrpouya-Bahrami P AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Chitrala, Kumaraswamy Naidu AU - Chitrala KN AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Ganewatta, Mitra S AU - Ganewatta MS AUID- ORCID: 0000-0002-9465-8238 AD - Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA. FAU - Tang, Chuanbing AU - Tang C AD - Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC, USA. FAU - Murphy, E Angela AU - Murphy EA AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Enos, Reilly T AU - Enos RT AUID- ORCID: 0000-0001-5571-4586 AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Velazquez, Kandy T AU - Velazquez KT AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - McCellan, Jamie AU - McCellan J AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Nagarkatti, Mitzi AU - Nagarkatti M AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. FAU - Nagarkatti, Prakash AU - Nagarkatti P AD - Department of Pathology, Microbiology, and Immunology, School of Medicine, Columbia, SC, USA. prakash@mailbox.sc.edu. LA - eng GR - K01 AT007824/AT/NCCIH NIH HHS/United States GR - P01 AT003961/AT/NCCIH NIH HHS/United States GR - P20 GM103641/GM/NIGMS NIH HHS/United States GR - R01 AT006888/AT/NCCIH NIH HHS/United States GR - R01 ES019313/ES/NIEHS NIH HHS/United States GR - R01 MH094755/MH/NIMH NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20171115 PL - England TA - Sci Rep JT - Scientific reports JID - 101563288 RN - 0 (Cannabinoid Receptor Antagonists) RN - 0 (Cytokines) RN - 0 (Receptor, Cannabinoid, CB1) RN - RML78EN3XE (Rimonabant) SB - IM MH - Adipose Tissue/metabolism/pathology MH - Animals MH - Cannabinoid Receptor Antagonists/*pharmacology MH - Cell Movement/drug effects MH - Cytokines/metabolism MH - Gastrointestinal Microbiome/*drug effects MH - Inflammation/drug therapy/metabolism/pathology MH - Macrophages/metabolism MH - Male MH - Mice MH - Obesity/*drug therapy/etiology/metabolism MH - Receptor, Cannabinoid, CB1/*antagonists & inhibitors/metabolism MH - Rimonabant/*pharmacology PMC - PMC5688117 COIS- The authors declare that they have no competing interests. EDAT- 2017/11/17 06:00 MHDA- 2019/07/16 06:00 PMCR- 2017/11/15 CRDT- 2017/11/17 06:00 PHST- 2016/12/07 00:00 [received] PHST- 2017/10/23 00:00 [accepted] PHST- 2017/11/17 06:00 [entrez] PHST- 2017/11/17 06:00 [pubmed] PHST- 2019/07/16 06:00 [medline] PHST- 2017/11/15 00:00 [pmc-release] AID - 10.1038/s41598-017-15154-6 [pii] AID - 15154 [pii] AID - 10.1038/s41598-017-15154-6 [doi] PST - epublish SO - Sci Rep. 2017 Nov 15;7(1):15645. doi: 10.1038/s41598-017-15154-6.