GLB1 and colorectal cancer: From this viewpoint, studies carried out in vitro in three colorectal cancer cell lines (HCT 116, HT 29, and Caco-2) compared with a normal colon epithelial cell line (MCM 4640) showed that S. thermophillus produces molecules of beta-galactosidase, which have the property of suppressing the development of tumor cells [46].