A symbiotic bacterium Raoultella ornithinolytica with metabolites having lysozyme-type activity: antimycobacterial against saprophytic strains, antifungal against C. albicans, and anticancer against breast ductal carcinoma (line T47D) and the endometrioid ovarian cancer line (TOV-112D) was isolated from the intestine wall of the earthworm D. veneta (Fiołka et al., 2012b; Fiołka et al., 2013; Fiołka et al., 2015a; Fiołka et al., 2015b). This evidence concerns the gene LYZ and breast ductal adenocarcinoma.