Article ID Journal Published Year Pages File Type
2116295 Cancer Letters 2013 10 Pages PDF
Abstract

Pancreatic cancers relapse due to small but distinct population of cancer stem cells (CSCs) which are in turn regulated by miRNAs. The present study identifies a series of miRNAs which were either upregulated (e.g. miR-146) or downregulated (e.g. miRNA-205, miRNA-7) in gemcitabine resistant MIA PaCa-2 cancer cells and clinical metastatic pancreatic cancer tissues. Gemcitabine resistant MIA PaCa-2 cells possessed distinct ALDH-positive CSC fraction expressing stem cell markers OCT3/4 and CD44 and chemoresistance marker class III β-tubulin (TUBB3) which decreases on transfection with miR-205 resulting in the restoration of chemosensitivity to gemcitabine.

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Life Sciences Biochemistry, Genetics and Molecular Biology Cancer Research
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