Identification of Sansalvamide a analog potent against pancreatic cancer cell lines.
Thirty-one Sansalvamide A peptide derivatives were synthesized. (3)H thymidine inhibition assays were performed using two pancreatic cancer cell lines (PL45 and BxPC-3). Six compounds possess 140-fold increased differential selectivity for cancer cell lines over normal cell lines (WS1, skin fiberblasts) and are 140 times more active against pancreatic cancer cell lines than compounds used clinically to treat these cancers (e.g., 5-FU). Structure-activity relationship studies show the inclusion of a single N-methyl and/or d-amino acid appears to be critical for presenting the active conformation of the six San A peptide derivatives to their biological target(s).
Pan
Po-Shen
PS
Department of Chemistry and Biochemistry, San Diego State University, San Diego, CA 92182, USA.
McGuire
Kathleen L
KL
McAlpine
Shelli R
SR
D000970:Antineoplastic Agents / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D047630:Depsipeptides / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D010190:Pancreatic Neoplasms / Q000473:pathology*; D013329:Structure-Activity Relationship
D000970:Antineoplastic Agents; D047630:Depsipeptides; C119376:sansalvamide A