PANTR1 and glioma: Moreover, an increased ratio of G2/M phase and a reduction of S and G0/G1 phase glioma cells were observed in PANTR1 knockdown group compared with normal glioma cells after 48 and 72 hours (Figures 6(e), 6(f), and 7(a)–7(d)), which indicated that the SHG44 cell cycle was blocked in G2 phase.