Fig. 1.
Transient expression of latent genes do not induce lymphatic differentiation. (A) Constructs expressing individual latent viral genes were transiently transfected into TIME cells. 48 h post transfection, cell lysates were harvested and subjected to immunoblot analysis with the indicated antibodies. In addition, stable pooled TIME cells expressing LANA or a retroviral vector control were similarly analyzed. While expression of individual latent viral genes was confirmed by FLAG or LANA immunoblot, no viral gene activated STAT3 or induced VEGFR-3 expression. (B) TIME cells (2 × 105) were transduced with lentiviral preps of the indicated KSHV latent genes or pCGSW, a control lentivirus that expresses GFP. 72 hpi, cell lysates were harvested and subjected to immunoblot analysis with the indicated antibodies. TIME cells were mock or KSHV-infected and harvested 48 hpi for positive and negative controls respectively.