The effect of glutathion on the reaction of cis-and trans-diamminedichloroplatinum(II) with DNA.

نویسنده

  • R Oliński
چکیده

Differential pulse polarography study was used to investigate the influence of glutathion on cis- and trans-DDP induced alterations of DNA structure. Though the applied concentration of glutathion has no effect on the reaction on DNA with cis-DDP, it greatly modifies the reaction with trans isomer. This may be an important reason for the ineffectiveness of the trans-DDP as an antitumor drug.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Platinum incorporation and differential effects of cis- and trans-diamminedichloroplatinum(II) on the growth of mouse leukemia P388/D1.

The parallel effects of cis-diamminedichloroplatinum(II) (1 microM) or trans-diamminedichloroplatinum(II) (20 microM) on the growth of mouse leukemia P388/D1 in culture, on the cellular content of protein/DNA, on the average cell volume, and on the distribution in different phases of the cell cycle were measured over a period of 70 h and compared with the amount of platinum residing in the cell...

متن کامل

Alteration and activation of sequence-specific cleavage of DNA by bleomycin in the presence of the antitumor drug cis-diamminedichloroplatinum(II).

The antitumor drug cis-diamminedichloroplatinum(II) dramatically alters the sequence-specific cleavage of the bleomycin A2-iron(II)-O2 system. Preferred bleomycin cleavage sites adjacent to oligo(dG) regions on two restriction fragments of plasmid pBR322 DNA were masked by pretreatment with cis-diamminedichloroplatinum(II). trans-Diamminedichloroplatinum(II), which is inactive as an antitumor d...

متن کامل

Effect of Alkyl Substituents on the Hydrogen Catalytic Osmylation of Cis and Trans 2-Cyclohexene-Cyclohexanol

Catalytic osmylation of cis and trans 2-cyclohexene-cyclohexanol (1a) and (1b) are carried out in the presence of N-methyl morpholine-N-oxide. Under the same conditions, only the cis isomer reacted, leading to triol (3). The steric hindrance of the equatorial OH group probably prevents the trans isomer from entering into such reaction. Triol (3) was also obtained from the reduction of the d...

متن کامل

Sequence-dependent termination of in vitro DNA synthesis by cis- and trans-diamminedichloroplatinum (II).

Inhibition of DNA replication by the antitumor drug cis-diamminedichloroplatinum (II) (cis-DDP) has been proposed to be responsible for its cytotoxicity. Treatment of primed phage M13 mp8 viral DNA templates with the drug followed by second-strand synthesis using large fragment DNA polymerase I reveals that cis-DDP forms an adduct with DNA that inhibits DNA synthesis in vitro. This inhibition o...

متن کامل

Kinetics of formation and disappearance of a DNA cross-linking effect in mouse leukemia L1210 cells treated with cis- and trans-diamminedichloroplatinum(II).

cis- and trans-diamminedichloroplatinum(II) (PDD) produced a DNA cross-linking effect in mouse leukemia L1210 cells, which was demonstrable after subtoxic treatments with the DNA alkaline elution technique. Cross-linking effects developed following treatments with concentrations as low as 1 micron for cis-PDD and 5 micron for trans-PDD, which permitted over 80% survival of colony-forming abilit...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Zeitschrift fur Naturforschung. C, Journal of biosciences

دوره 45 11-12  شماره 

صفحات  -

تاریخ انتشار 1990