title: Anticancer activity of polyoxomolybdate.
abstract: Anticancer polyoxomolybdates have been investigated for medical application of polyoxometalates as discrete cluster anions of metal oxides. [NH3Pri]6[Mo7O24].3H2O (PM-8) has been recognized as one of significant antitumoral polyoxomolybdates. PM-8 had shown the growth suppression against several tumors, for examples, Co-4, human colon cancer, MX-1, human breast cancer, and OAT, human lung cancer. PM-8 showed the tumor growth suppression for MKN-45 human gastric cancer in tumor bearing mice. PM-8 inhibited the cell growth of AsPC-1 which depended on the dose with showing DNA ladder formation and DNA fragmentation, and positive Hoechst staining indicating apoptosis. The ratio of apoptotic cells on flow cytometry analysis were 35%, and 57% with treatment of PM-8 after 48, and 72 h, respectively. One of the anti-tumor activity of PM-8 result from the activation of apoptotic pathway. It is thought that polyoxomolybdates will be applied as a novel anti-tumor agent especially against cancers which are difficult to be treated clinically.
authors.affiliation: Department of Intellectual Property, Project of Cancer Metastasis Inhibition, Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904, Japan. yanagie@ip.rcast.u-tokyo.ac.jp
authors.forename: H
authors.initials: H
authors.lastname: Yanagie
authors.forename: A
authors.initials: A
authors.lastname: Ogata
authors.forename: S
authors.initials: S
authors.lastname: Mitsui
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: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D006801:Humans; D008982:Molybdenum / Q000737:chemistry / Q000627:therapeutic use*; D009369:Neoplasms / Q000188:drug therapy*; D010087:Oxides / Q000737:chemistry / Q000627:therapeutic use*
chemical_list: D000970:Antineoplastic Agents; D010087:Oxides; C081971:PM 8; D008982:Molybdenum