“The role of endocannabinoid system in melanoma development and progression is actually not fully understood.
This study was aimed at clarifying whether cannabinoid-type 1 (CB1) receptor may function as tumor-promoting or -suppressing signal in human cutaneous melanoma.
Findings of this study suggest that CB1 receptor might function as tumor-promoting signal in human cutaneous melanoma.”
https://www.ncbi.nlm.nih.gov/pubmed/28131817
“Antitumor effects of THC.” http://www.ncbi.nlm.nih.gov/pubmed/11097557
“Cannabinoids (CB) like ∆9-tetrahydrocannabinol (THC) can induce cancer cell apoptosis and inhibit angiogenesis. Our results confirm the value of exogenous cannabinoids for the treatment of melanoma” http://www.ncbi.nlm.nih.gov/pubmed/25921771