Figure 4. Reduction of SOCS3 and SPI1 mRNA in HEL cells transfected with JAK2 siRNAs.
A. Western blots of JAK2 protein in HEL and K562 cells treated with siRNAs against JAK2 are shown. EF-2 was detected as a loading control. Cell lysates were prepared 24 h after siRNA transfection. Proteins derived from 1×105 cells were loaded onto each lane. Alexa 680-labeled secondary antibodies were used. Three types of siRNA against JAK2 (siRNA1–3) and a negative control siRNA (NC1) are described in the Materials and Methods section. Fold change represents a ratio of band intensity of JAK2 and that of EF-2. B. SOCS3 mRNA amount determined by qPCR. RNA was prepared 48 h after siRNA transfection. The values are expressed with an arbitrary unit as the mean of NC1 and NC2-treated HEL cells as 1. Error bars represent standard errors for triplicate measurements. C. SPI1 mRNA amount shown as in B.