Induction of breast cancer resistance protein by the camptothecin derivative DX-8951f is associated with minor reduction of antitumour activity
2002

DX-8951f and Breast Cancer Resistance Protein in Ovarian Cancer

publication 10 minutes Evidence: moderate

Author Information

Author(s): van Hattum A H, Hoogsteen I J, Schlüper H M M, Maliepaard M, Scheffer G L, Scheper R J, Kohlhagen G, Pommier Y, Pinedo H M, Boven E

Primary Institution: Vrije Universiteit Medical Center

Hypothesis

DX-8951f induces breast cancer resistance protein (BCRP) as a mechanism of resistance in ovarian cancer cells.

Conclusion

DX-8951f induces BCRP, but this results in only a minor reduction of its antitumor activity compared to other drugs.

Supporting Evidence

  • DX-8951f-resistant cells showed a 9.3-fold resistance to DX-8951f compared to parental cells.
  • BCRP expression was confirmed at both mRNA and protein levels in resistant cells.
  • GF120918, a BCRP inhibitor, reversed resistance to DX-8951f in the resistant cell line.

Takeaway

Researchers found that a new cancer drug, DX-8951f, can make cancer cells resistant, but it still works better than some older drugs.

Methodology

The study involved creating a DX-8951f-resistant ovarian cancer cell line and testing drug resistance and expression of BCRP.

Limitations

The study primarily focused on a single cell line and may not represent all ovarian cancer types.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1038/sj.bjc.6600508

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