Abstract
The main molecule found in the supernatant of Bacillus paralicheniforms bacteria, which showed antitumor activity in prostate cancer cells, was Cycle (Phe-Tyr). In canine kidney cells (MDCK- Madin-Darby canine kidney) cycle (Phe-tyr) showed cytotoxicity that kills 50% of cells (CC50) at concentrations of 90 µM (Zhang et al. 2018). In cells of cervical carcinoma (HeLa), colon carcinoma (HT…