CYCS and melanoma: Hemp extract has been shown to inhibit the proliferation and growth of prostate cancer (De Petrocellis et al., 2013) and melanoma (Blázquez et al., 2006)cells, and hemp derivatives are able to alter mitochondrial permeability of rat liver cells and increase cytochrome c release (Zaccagnino et al., 2012), suggesting that hemp peptides represent candidate anticancer agents.