Fig. 3: NRBF2 regulates autophagy through the VPS34 complex.
From: NRBF2-mediated autophagy contributes to metabolite replenishment and radioresistance in glioblastoma
a Autophagy-related protein levels after treatment confirmed by western blot. b Schematic images of the autophagy initiation step involved in NRBF2. c Coimmunoprecipitation of NRBF2 and the VPS34 complex confirmed by western blot in GBM cell lines. d Autophagic flux analysis using the mCherry-EGFP reporter. A172 and U-87 MG cells transfected with mCherry-GFP-LC3B were treated with IR (3 Gy), siNRBF2 or both. The mean numbers of autophagosomes and autolysosomes are represented by yellow and red dots, respectively, in the merged images. The images were quantified using ImageJ (n = 5). Scale bars, 10 µm. e IHC of LC3B in coronal sections from U-87 WT or NRBF2 knockout orthotopic xenograft mouse models treated with radiation (2 Gy × 5). Scale bars, 10 μm. **p < 0.01, ***p < 0.001, ****p < 0.0001 using an unpaired t test.
