title: Antineoplastic agents 337. Synthesis of dolastatin 10 structural modifications.
abstract: New structural modifications of the marine shell-less mollusk peptide constituent dolastatin 10 (1) have been synthesized, and evaluated against a variety of cancer cell lines and for their ability to inhibit tubulin polymerization. A number of useful structure-activity relationships were uncovered. The most important observation was that the dolaphenine unit of dolastatin 10 could be satisfactorily replaced with a phenethylamine. Peptide 11C, designated auristatin PE, was found to exhibit inhibition of cancer cell growth and tubulin assembly comparable to that of dolastatin 10.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D000970:Antineoplastic Agents / Q000737:chemistry*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D047630:Depsipeptides; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D007939:Leukemia L1210 / Q000473:pathology; D008969:Molecular Sequence Data; D009842:Oligopeptides / Q000138:chemical synthesis / Q000737:chemistry*; D013329:Structure-Activity Relationship; D014404:Tubulin / Q000378:metabolism; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000970:Antineoplastic Agents; D047630:Depsipeptides; D009842:Oligopeptides; D014404:Tubulin; C064570:dolastatin 10