title: Synthesis and cytotoxic activity of platinum complex immobilized by branched polyethylene glycol.
abstract: Two-arm branched mPEG (monomethoxy-polyethylene glycol) with different molecular weights (M(n)=4000, 6000, 9400) was synthesized and used as carrier for immobilization of cisplatin [cis-diammine(dichloro)platinum (II), CDDP]. As a contrast, CDDP modified with linear mPEGs was also synthesized. All these polymeric drugs modified with branched mPEG are water soluble and show higher cytotoxic activity against C6 human breast cancer cells than cisplatin modified with linear mPEG with the same molecular weight. All the polymeric CDDP showed a much lower toxicity than the CDDP.
authors.affiliation: The Key Laboratory of Molecular Engineering, Education Ministry of China, Department of Macromolecular Science, Fudan University, Shanghai 200433, People's Republic of China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Ren
authors.forename: Haitao
authors.initials: H
authors.lastname: Zhang
authors.forename: Junlian
authors.initials: J
authors.lastname: Huang
mesh_terms: D000970:Antineoplastic Agents / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D045744:Cell Line, Tumor; D002945:Cisplatin / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology*; D006801:Humans; D011092:Polyethylene Glycols / Q000737:chemistry*
chemical_list: D000970:Antineoplastic Agents; D011092:Polyethylene Glycols; D002945:Cisplatin