DL-Leucyl-DL-phenylalanine, a dipeptide, serves as a substrate for detecting two distinct regions of dipeptidase staining on gels in both Drosophila simulans and Drosophila melanogaster.

DL-Leucyl-DL-phenylalanine is a dipeptide[1]. Its activity includes inhibiting cell proliferation and inducing apoptosis in various cancer cell lines, potentially through modulation of signaling pathways. Moreover, it demonstrates anti-inflammatory properties by reducing pro-inflammatory cytokine production, suggesting its therapeutic potential in both oncology and inflammatory diseases.