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  • Title: Cisplatin interaction with phosphatidylserine bilayer studied by solid-state NMR spectroscopy.
    Author: Jensen M, Bjerring M, Nielsen NC, Nerdal W.
    Journal: J Biol Inorg Chem; 2010 Feb; 15(2):213-23. PubMed ID: 19768472.
    Abstract:
    Cisplatin [cis-diamminedichloridoplatinum(II)] is used in chemotherapy where platinum-DNA adducts initiate tumor cell death. It is possible that side effects such as neurotoxicity and cellular cisplatin resistance can be due to interaction of cisplatin with lipids and the phospholipid bilayer. In this study, (13)C, (31)P, and (15)N solid-state NMR spectra of 1-palmitoyl-2-oleoyl phosphatidylserine (POPS) bilayers, POPS bilayers with 10 mol% cisplatin, and POPS bilayers with 30 mol% cisplatin were acquired. In addition, (15)N{(31)P} rotational echo double resonance spectra of POPS bilayers with 30 mol% cisplatin were acquired. The data demonstrate that the serine head group of phosphatidylserine binds to the aquated form of cisplatin and that cisplatin release of ammine takes place. It appears that the cisplatin release of ammine is followed by another cisplatin-POPS complex formation, possibly with cisplatin binding to one of the oxygen atoms of the POPS phosphate moiety.
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