Potential usefulness of quinine to circumvent the anthracycline resistance in clinical practice

B. Chauffert, H. Pelletier, C. Corda, E. Solary, L. Bedenne, D. Caillot, F. Martin

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

32 Citations (Scopus)

Résumé

Quinine, the widely used antimalaria agent, was found to increase the cytotoxicity of epidoxo- rubicin (epiDXR) in resistant DHD/K12 rat colon cancer cells in vitro. Quinine appeared as slightly less effective than quinidine or verapamil for anthracycline potentiation but its weaker cardiotoxicity could counterbalance this disadvantage in vivo. Serum from six patients treated by conventional doses of quinine (25-30 mg kg-1 day-1) was demonstrated to enhance the accumulation of epiDXR in DHD/K12 cells as judged by fluorescence microscopy and HPLC assay (1.6 to 6-fold compared with control serum). In this patients quinine concentrations in serum ranged from 4.4 to 10.1 µg ml-1. Our results suggest that quinine could be safely used as anthracycline resistance modifier in clinical practice.

langue originaleAnglais
Pages (de - à)395-397
Nombre de pages3
journalBritish Journal of Cancer
Volume62
Numéro de publication3
Les DOIs
étatPublié - 1 janv. 1990
Modification externeOui

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