In5 was able to increase staining of three different cancer cell lines (i.e., T-cell leukemia, mantle cell leukemia, and melanoma) with the apoptotic marker Annexin V. In agreement with our previous studies (Michelsen et al., 2015), we observed that nunamycin and nunapeptin is important for the antimicrobial activity observed by Pseudomonas sp. Here, ANXA5 is linked to T-cell leukemia.