Comparative Effect of Leucovorin Isomers on Cancer Treatment
Author Information
Author(s): J. Zittoun, J. Marquet, J.J. Pilorget, C. Tonettil, E. De Gialluly
Primary Institution: Service Central d'Hematologie-Immunologie, Hopital Henri Mondor, Faculte de Medecine, Creteil, France
Hypothesis
The study investigates the efficacy of different diastereoisomers of leucovorin in enhancing the effects of methotrexate and 5-fluorouracil in cancer treatment.
Conclusion
The natural isomer 6S of leucovorin is more effective than the racemic form 6RS and the unnatural isomer 6R in reversing the cytotoxicity of methotrexate and enhancing the effects of 5-fluorouracil.
Supporting Evidence
- 6S isomer was more effective than 6RS in preventing methotrexate cytotoxicity.
- 6R showed protective effects only at very high concentrations.
- 6S and 6RS enhanced the cytotoxic effect of 5-fluorouracil significantly.
Takeaway
This study shows that one type of leucovorin works better than others to help cancer treatments work more effectively.
Methodology
The study used CCRF-CEM cells to compare the effects of leucovorin isomers on methotrexate and 5-fluorouracil cytotoxicity through various tests including the deoxyuridine suppression test.
Limitations
The study primarily focuses on in vitro results, which may not fully translate to in vivo effectiveness.
Participant Demographics
Human lymphoblastic leukaemic cell line (CCRF-CEM).
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
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