[Microbiota, cancer and immune therapy].

The relationship between cancer and microbes is complex and not entirely known. The objective of this manuscript is to review the scientific evidence on the relationship between the microbiome, cancer and immunotherapy. A non-systematic literature review was done in the databases MEDLINE, COCHRANE, and DATABASE, and articles of greater scientific rigor, mainly reviews or prospective studies/randomized clinical trials published to date (May 2018), were selected. Terms used in the search included: microbiome, microbiota, cancer, immune checkpoint inhibitors, PD-L1, PD-1 and CTLA-4.