we studied the effect of cyclosporin a ( csa ) and two nonimmunosuppressive analogues , 11-methyl-leucine- ( 11-me-leu-csa ) and 6-methyl-alanine-cyclosporin a ( 6-me-ala-csa ) , on the action of doxorubicin ( dox ) and 4'-epidoxorubicin against parent ( auxb1 ) and multidrug-resistant ( chrc5 ) chinese hamster ovary cells .
C0013089
doxorubicin
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4