Figure 2. RABL6A is required for PNET cell proliferation.
A, Schematic of RABL6 isoforms and RABL6A mRNA regions targeted by KD1 and KD2 shRNAs. B, western blot showing effective RABL6A knockdown in BON-1 cells expressing KD1 and KD2 shRNAs compared to vector control (CON). Graph shows reduced cell numbers following RABL6A knockdown relative to CON cells (*, p<0.05). C, flow cytometric analyses of DNA content show RABL6A depletion causes cell cycle arrest predominantly in G1 phase along with a moderate G2/M arrest. D, infected BON-1 cells were kept under antibiotic selection to maintain shRNA expression and cells counted at the indicated days. A representative growth curve from more than three independent experiments shows RABL6A loss causes sustained inhibition of proliferation.