title: Evaluating the potential of vacuolar ATPase inhibitors as anticancer agents and multigram synthesis of the potent salicylihalamide analog saliphenylhalamide.
abstract: The natural product salicylihalamide is a potent inhibitor of the Vacuolar ATPase (V-ATPase), a potential target for antitumor chemotherapy. We generated salicylihalamide-resistant tumor cell lines typified by an overexpansion of lysosomal organelles. We also found that many tumor cell lines upregulate tissue-specific plasmalemmal V-ATPases, and hypothesize that tumors that derive their energy from glycolysis rely on these isoforms to maintain a neutral cytosolic pH. To further validate the potential of V-ATPase inhibitors as leads for cancer chemotherapy, we developed a multigram synthesis of the potent salicylihalamide analog saliphenylhalamide.
authors.affiliation: Department of Biochemistry, University of Texas Southwestern Medical Center at Dallas, 5323 Harry Hines Blvd., Dallas, TX 75390-9038, USA.
authors.forename: Sylvain
authors.initials: S
authors.lastname: Lebreton
authors.forename: Janis
authors.initials: J
authors.lastname: Jaunbergs
authors.forename: Michael G
authors.initials: MG
authors.lastname: Roth
authors.forename: Deborah A
authors.initials: DA
authors.lastname: Ferguson
authors.forename: Jef K
authors.initials: JK
authors.lastname: De Brabander
mesh_terms: D000577:Amides / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D001688:Biological Products / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D019086:Bridged Bicyclo Compounds, Heterocyclic / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D015394:Molecular Structure; D012459:Salicylates / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D025262:Vacuolar Proton-Translocating ATPases / Q000037:antagonists & inhibitors*
chemical_list: D000577:Amides; D000970:Antineoplastic Agents; D001688:Biological Products; D019086:Bridged Bicyclo Compounds, Heterocyclic; D012459:Salicylates; C410986:salicylihalamide A; C574373:saliphenylhalamide; D025262:Vacuolar Proton-Translocating ATPases