Article ID Journal Published Year Pages File Type
2113033 Cancer Letters 2013 10 Pages PDF
Abstract

Cancer stem cells (CSCs) have been implicated in multidrug resistance, a phenomenon responsible for the failure of cancer chemotherapy. However, the underlying mechanisms are still unclear. In our study, we established two oxaliplatin-resistant colorectal cancer cell lines displaying some CSCs characteristics. Oct4 overexpression was observed in these two lines. We performed Oct4 knock down by lentiviral vector-mediated specific shRNA. Knockdown increased apoptosis, decreased CSCs marker expression and weakened tumorigenicity in drug-resistant cell lines. In conclusion, we show that these events can be at least in part attributed to the STAT3/Survivin pathway.

► We established two oxaliplatin-resistant colorectal cancer cell lines displaying some CSCs characteristics. ► Oct4 overexpression was observed in these two lines. ► Oct4 knockdown increased apoptosis, decreased CSCs marker expression and weakened tumorigenicity in the two lines. ► These events can be at least in part attributed to the STAT3/Survivin pathway.

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Life Sciences Biochemistry, Genetics and Molecular Biology Cancer Research
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