Quantitative reverse transcriptase-PCR analysis was done as previously described.23 (link) A TaqMan miRCURY LNA SYBR Green PCR kit (Qiagen 33945, Qiagen, Hilden, Germany) was used to measure the expression of miRNA (customer-designed miRCURY LNA miRNA assay, Qiagen). U6 snRNA was used as an internal control (Qiagen assay YP02119464). Total RNA was extracted using QIAzol (Qiagen), followed by cDNA synthesis using a miRCURY LNA RT (reverse transcriptase) Kit (Qiagen 339340). qPCR was performed using a CFX Connect reverse transcriptase-PCR detection system (Bio-Rad).
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