doi: 10.1007/BF00364843.
DNA-protein cross-linking in L1210 cells sensitive and resistant to cis-diamminedichloroplatinum (II)
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- PMID: 1749377
- DOI: 10.1007/BF00364843
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DNA-protein cross-linking in L1210 cells sensitive and resistant to cis-diamminedichloroplatinum (II)
Mol Biol Rep.
1991 May.
Abstract
The role of restricted cellular accumulation of cis-diamminedichloroplatinum(II) (cis-DDP) and altered repair of DNA-Pt-protein cross-links in the mechanism of L1210 murine leukemia cell resistance was examined. An immunochemical method was used to analyze the formation and removal of DNA-Pt-protein complexes in L1210 cells sensitive and resistant to cis-DDP. The accumulation of Pt into the cells and the binding of Pt to the DNA was measured by atomic absorption spectroscopy. The results demonstrated that both decreased accumulation of the drug and the rate of DNA-Pt protein cross-link removal may be important factors in L1210 cell resistance to cis-DDP.
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