Polysaccharides with Antitumor Effect in Breast Cancer: A Systematic Review of Non-Clinical Studies.

To review the effects of polysaccharides and their proposed mechanisms of action in breast cancer experimental models. Articles were selected by using PubMed, ScienceDirect, Scopus, and Medline, assessed from 1 May 2019 to 1 July 2020. The systematic review was registered in the International Prospective Register of Systematic Reviews (Prospero) under the number CRD42020169103.