Orthotopic transplantation of rescued CD34+ SCC cells resulted in a two-fold delay in tumor latency compared to Tgfbr2 cKO CD34+ SCC cells infected with the empty vector (Figure 6—figure supplement 2), although all mice eventually developed tumors due to the inefficient infection rate of the rescue vector (Figure 6F). This evidence concerns the gene TGFBR2 and infection.