Reversal of Multidrug Resistance by Surfactants
Author Information
Author(s): D.M. Woodcock, M.E. Linsenmeyer, G. Chojnowski, A.B. Kriegler, V. Nink, L.K. Webster, W.H. Sawyer
Primary Institution: Peter MacCallum Cancer Institute
Hypothesis
Can surfactants like Cremophor EL reverse multidrug resistance in cancer cells?
Conclusion
Cremophor EL and other surfactants can effectively reverse multidrug resistance in cancer cells, improving drug uptake and survival in treated mice.
Supporting Evidence
- Cremophor EL was shown to reverse multidrug resistance in vitro.
- Surfactants with polyethoxyl moieties were effective in reversing drug exclusion.
- Combination treatment with adriamycin and Cremophor significantly increased survival in mice.
- Cremophor did not cause significant cell lysis at effective concentrations.
- Flow cytometry confirmed increased intracellular drug levels in treated cells.
Takeaway
Some special soaps can help cancer medicine work better by stopping cancer cells from pushing the medicine out.
Methodology
Flow cytometry was used to evaluate drug uptake and efflux in cancer cells treated with various surfactants.
Limitations
The study primarily focused on specific cell lines and may not fully represent all cancer types.
Participant Demographics
Mice with multidrug resistant tumors were used in the study.
Statistical Information
P-Value
0.0002
Statistical Significance
p<0.01
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