Differential growth inhibition of isoquinolinesulfonamides H-8 and H-7 towards multidrug-resistant P388 murine leukaemia cells
1991

Effects of H-8 and H-7 on Drug-Resistant Leukaemia Cells

publication Evidence: moderate

Author Information

Author(s): M. Idol, Y. Nagao, M. Higashigawa, T. Shibata, K. Taniguchi, M. Hamazaki, M. Sakurai

Primary Institution: Mie University School of Medicine

Hypothesis

The study aims to assess the effects of isoquinolinesulfonamides H-8 and H-7 on the growth of multidrug-resistant P388 murine leukaemia cells.

Conclusion

H-8 inhibited the growth of drug-sensitive P388 cells but not the multidrug-resistant variants, while H-7 inhibited both.

Supporting Evidence

  • H-8 inhibited the growth of drug-sensitive P388 cells but not the multidrug-resistant variants.
  • H-7 inhibited the growth of both drug-sensitive and resistant P388 cells.
  • The degree of resistance to H-8 was proportional to resistance to other anticancer drugs.
  • H-8 did not affect the binding of 3H-vincristine to membrane fractions from resistant cells.

Takeaway

This study looked at how two drugs affect cancer cells that are resistant to treatment. One drug worked on regular cancer cells but not on the resistant ones, while the other worked on both.

Methodology

The study involved testing the effects of H-8 and H-7 on the growth of P388 and its multidrug-resistant variants, measuring cell survival and cell cycle progression.

Limitations

The study does not explore the long-term effects of H-8 and H-7 on the cells or the potential for resistance development over time.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

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