title: A novel anti-tumor agent, polyoxomolybdate induces apoptotic cell death in AsPC-1 human pancreatic cancer cells.
abstract: Anti-tumoral polyoxomolybdates have been investigated in the course of study of the medical application of polyoxometalates as discrete cluster anions of metal oxides. [NH(3)Pr(i)](6)[Mo(7)O(24)].3H(2)O (PM-8) has been recognized as one of significantly anti-tumoral polyoxomolybdates. PM-8 inhibited the cell growth of human pancreatic cells (AsPC-1) depending on the dose. DNA ladder formation and DNA fragmentation were observed by Hoechst and TUNEL staining and flowcytometry analysis. The ratio of apoptotic cells were 29%, 35%, and 57% with treatment of PM-8 after 24, 48, and 72 h, respectively, which suggested that the anti-tumor activity of PM-8 results from the activation of the apoptotic pathway. Polyoxomolybdates provide promising, novel anti-tumor agent, especially for the treatment of cancers that are difficult to treat.
authors.affiliation: Chemical Resources Laboratory, Tokyo Institute of Technology, R1-21, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Ogata
authors.forename: S
authors.initials: S
authors.lastname: Mitsui
authors.forename: H
authors.initials: H
authors.lastname: Yanagie
authors.forename: H
authors.initials: H
authors.lastname: Kasano
authors.forename: T
authors.initials: T
authors.lastname: Hisa
authors.forename: T
authors.initials: T
authors.lastname: Yamase
authors.forename: M
authors.initials: M
authors.lastname: Eriguchi
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry / Q000494:pharmacology*; D017209:Apoptosis / Q000187:drug effects*; D045744:Cell Line, Tumor; D053938:DNA Fragmentation / Q000187:drug effects; D005434:Flow Cytometry; D006801:Humans; D020287:In Situ Nick-End Labeling; D015394:Molecular Structure; D008982:Molybdenum / Q000737:chemistry / Q000494:pharmacology*; D010190:Pancreatic Neoplasms
chemical_list: D000970:Antineoplastic Agents; C044659:molybdate; D008982:Molybdenum