Total mRNA was extracted from 1 × 106 cells by Manual PerfectPureTM RNA Cell & Tissue (5PRIME, GmbH). RNA was reverse transcribed using the high-capacity cDNA Archive Kit (Applied Biosystems, Foster City, USA) and real time PCR were performed as previously described [21 (link)]. Finally, raw data were analyzed by the ABI prism SDS software (Applied Biosystems) and primers (Ct1) mRNA expression data were obtained from Ct values, normalized to 18 s RNA (Ct2) (housekeeping) content and finally expressed as 2-Δct for each gene.
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