FIG. 5.

Infection with SFFV does not alter c-fos or c-myc expression in HCD-57 cells. Uninfected and SFFV-infected HCD-57 cells were starved overnight in 1.5% FCS and either left unstimulated (−) or stimulated for 15 min with Epo (+). RNA was extracted and analyzed by Northern blotting as described in Materials and Methods. The filter was sequentially stripped and reprobed with radiolabeled cDNA probes specific for c-fos, c-myc, or actin mRNA.