ISSN:
1432-1335
Keywords:
Synthesis
;
Antitumor activity
;
Leukemia L 5222
;
ADJ/PC6 Plasmacytoma
;
MDA-MB 231
;
Breast cancer cell line
;
Cisplatin-, daunomycin-, and cisplatin/daunomycin-resistant Ehrlich ascites tumor lines
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Summary Ring unsubstituted dichloro(diphenylethylenediamine)platinum(II) complexes show a dependence of their antitumor activity on the configuration and position of phenyl rings in ethylenediamine ligand. Dichloro(1,1-diphenylethylenediamine)platinum(II) (1d) and meso-dichloro(1,2-diphenylethylenediamine)-platinum(II) (meso-2d) have a weaker effect on the human breast-cancer cell line MDA-MB 231 and on rat leukemia L5222 than (±)-dichloro(1,2-diphenylethylenediamine)platinum(II) ((+)-2d) and its enantiomers (+)-2d and (-)-2d which cause marked and comparable inhibition of both tumors; (±)-2d is also active on ADJ/PC 6 plasmacytoma of the mouse and on cisplatin-, daunomycin-, and cisplatin/daunomycin-resistant Ehrlich ascites tumors of the mouse. The differences in activity of the diastereomers (±)-2d and meso-2d, for which distinct influences on the DNA secondary structure can be demonstrated CD spectroscopically may be explained by a steric hindrance of the drug-DNA interaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00395485
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