• Anti-cancer drugs · Feb 2006

    Recombinant interleukin-2 pre-treatment increases anti-tumor response to paclitaxel by affecting lung P-glycoprotein expression on the Lewis lung carcinoma.

    • Benoît Hosten, Désiré Challuau, Sophie Gil, Céline Bouquet, Sylvie Marion, Michel Perricaudet, Mario Di Palma, Robert Farinotti, and Laurence Bonhomme-Faivre.
    • UPRES EA 2706, University of Pharmaceutical Sciences, Paris, France.
    • Anticancer Drugs. 2006 Feb 1; 17 (2): 195-9.

    AbstractThe aim of the present study was to examine modifications of anti-tumor activity and toxicity of paclitaxel (PLX) when given p.o. after recombinant interleukin-2 (rIL-2) to Lewis lung carcinoma-bearing mice. PLX was given orally to mice at the dose of 15 mg/kg on day 8 and 30 mg/kg on day 15, either alone or after 16.5 microg of rIL-2 given i.p. twice a day either 1 or 3 days before. The anti-tumor activity was higher and PLX hematological toxicity not increased if orally administered PLX was given after a 3-day rIL-2 pre-treatment rather than if given alone. Lung metastasis was significantly lower and s.c. tumors were smaller in the PLX+rIL-2 group than in the PLX or rIL-2 or non-treated groups. In addition, a decrease in lung P-glycoprotein expression (investigated by Western blot analysis) was observed 1 h after the last administration of rIL-2 on day 7.

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