Duplex, real-time two-step RT-PCR was carried out on the Rotor-Gene Q using the Rotor-Gene Multiplex PCR Kit and self-designed TaqMan assays for [A] IL8 (interleukin 8) and [B] ACTB (β-actin). Analysis of tenfold dilutions of leukocyte cDNA template from 100 ng to 1 pg provided high PCR efficiencies of around 95%. [C] The CT values were comparable with those achieved in control singleplex reactions, demonstrating the reliability of the duplex assay.
Tenfold dilutions of human leukocyte cDNA (10 ng to 10 pg) were used as template in 4-plex, real-time PCR. Reactions were run in triplicate using either the Rotor-Gene Q and Rotor-Gene Multiplex PCR Kit or an instrument and kit from Supplier S. [A] Targets amplified, and reporter dyes of corresponding TaqMan probes. [B] CT values obtained for all 4 targets (instrument and kit from Supplier S did not successfully detect IFNG; N.D.). Lower CT values on the Rotor-Gene Q demonstrate detection with greater sensitivity. [C] Amplification plots for TNF using the Rotor-Gene Multiplex PCR Kit. [D] Amplification plots for TNF using a kit from Supplier S. [E] Amplification plots for IFNG using the Rotor-Gene Multiplex PCR Kit. [F] Amplification plots for IFNG using a kit from Supplier S.