Reversal of multidrug resistance in human colon carcinoma cells

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

Reexamination Certificate

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C514S411000, C514S415000, C514S279000, C514S280000

Reexamination Certificate

active

06878737

ABSTRACT:
The present invention describes the use of fumitremorgin A, B and C and a series of diketopiperazines of Formula (I) to resensitize multidrug resistant (MDR) cancer cells to the cytotoxic effects of chemotherapeutic drugs.

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