PAK3 and cervical carcinoma: To determine whether HPV+ cervical cancer cells are specifically vulnerable to PAK3 and SGK2 shRNAs, we investigated four control lentivirus shRNA vectors that do not target human genes (Luc, EGFP, T-GFP and NT shRNAs, see Table 1) for their effect on the proliferation/ viability of HeLa and CaSki cells.