Reversal of different drug-resistant phenotypes by an autocatalytic multitarget multiribozyme directed against the transcripts of the ABC transporters MDR1/P-gp, MRP2, and BCRP.

Abstract excerpt

A "multitarget multiribozyme" (MTMR) was constructed. It consists of three trans-acting hammerhead ribozymes directed against the transcripts of the ABC transporters MDR1/P-gp, BCRP, and MRP2; three cis-acting MDR1/P-gp-specific ribozymes; and three MDR1/P-gp-homologous spacer sequences. The trans-acting hammerhead ribozymes are liberated from the MTMR through autocatalytic self-cleavage by the cis-acting...

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