Basic Study
Copyright ©The Author(s) 2018. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastroenterol. May 14, 2018; 24(18): 1995-2008
Published online May 14, 2018. doi: 10.3748/wjg.v24.i18.1995
Microbiota modification by probiotic supplementation reduces colitis associated colon cancer in mice
Maria Carolina S Mendes, Daiane SM Paulino, Sandra R Brambilla, Juliana A Camargo, Gabriela F Persinoti, José Barreto C Carvalheira
Maria Carolina S Mendes, Daiane SM Paulino, Sandra R Brambilla, Juliana A Camargo, José Barreto C Carvalheira, Department of Internal Medicine, Faculty of Medical Sciences, State University of Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil
Gabriela F Persinoti, Brazilian Bioethanol Science and Technology Laboratory (CTBE), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo 13083-970, Brazil
Author contributions: Mendes MC and Carvalheira JB designed research; Mendes MC, Paulino DS, Brambilla SR and Camargo JA performed research; Mendes MC and Carvalheira JB analysed data; Persinoti GF analysed data generated by microbiome analysis; Mendes MC and Carvalheira JB wrote the paper; all authors revised and agreed with the final version of this article.
Supported by São Paulo Research Foundation (FAPESP, Brazil, No. 07607-8/2013); and National Research Council (CNPq, No. 150127/2016-2, No. 306821/2010-9).
Institutional animal care and use committee statement: The Ethics Committee on Animal Use (CEUA) of UNICAMP approved the project, according to protocol no. 2761-1.
Conflict-of-interest statement: No potential conflicts of interest were disclosed.
Data sharing statement: No additional data are available.
ARRIVE guidelines statement: The authors have read the ARRIVE Guidelines, and the manuscript was prepared and revised according to the ARRIVE Guidelines.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See:
Correspondence to: José Barreto C Carvalheira, MD, PhD, Associate Professor, Department of Internal Medicine, FCM-State University of Campinas (UNICAMP), Campinas, São Paulo 13083-887, Brazil.
Telephone: +55-19-35219589 Fax: +55-19-35218925
Received: March 6, 2018
Peer-review started: March 7, 2018
First decision: April 3, 2018
Revised: April 13, 2018
Accepted: April 23, 2018
Article in press: April 23, 2018
Published online: May 14, 2018
Core Tip

Core tip: Intestinal microbiota has an essential role in carcinogenesis, acting in promotion of inflammation, proliferation and neoplastic progression. Probiotic supplementation is an alternative means of favourably modulating the intestinal microbiota. In this study, we investigate the effect of supplementation with a Lactobacillus acidophilus, Lactobacillus rhamnosus and Bifidobacterium bifidum mixture during the development of an experimental model of colitis-associated colon cancer. Probiotic supplementation on colorectal cancer changed the microbiota and reduced inflammation in the colon, probably by regulating the inflammatory response, and reducing inflammatory cell infiltration by lowering chemokine expression, thus preventing colitis.