Pregunta
In this study, we constructed a novel survivin promoter driven full length antisense survivin expression plasmid DNA and subsequently evaluated the effectiveness of this plasmid DNA in targeting different survivin expressing cancer cells, including the MDR1 coexpressing multidrug resistant KB TAX50 oral cancer cells and the estrogen receptor positive ER tamoxifen resistant MCF7 TamC3 breast cancer cells how long does doxycycline take to work