title: Melanoma and viagra: an unexpected connection.
authors.forename: Devarati
authors.initials: D
authors.lastname: Mitra
authors.forename: Kathleen C
authors.initials: KC
authors.lastname: Robinson
authors.forename: David E
authors.initials: DE
authors.lastname: Fisher
mesh_terms: D000818:Animals; D054706:Cyclic Nucleotide Phosphodiesterases, Type 5 / Q000378:metabolism; D006801:Humans; D008545:Melanoma / Q000201:enzymology / Q000473:pathology*; D051379:Mice; D009361:Neoplasm Invasiveness; D058986:Phosphodiesterase 5 Inhibitors / Q000494:pharmacology; D010879:Piperazines / Q000494:pharmacology*; D048493:Proto-Oncogene Proteins B-raf / Q000037:antagonists & inhibitors / Q000378:metabolism; D011687:Purines / Q000494:pharmacology; D000068677:Sildenafil Citrate; D013450:Sulfones / Q000494:pharmacology*
chemical_list: D058986:Phosphodiesterase 5 Inhibitors; D010879:Piperazines; D011687:Purines; D013450:Sulfones; D000068677:Sildenafil Citrate; D048493:Proto-Oncogene Proteins B-raf; D054706:Cyclic Nucleotide Phosphodiesterases, Type 5