Journal: Journal of Cellular and Molecular Medicine
Article Title: Orexin‐A mediates glioblastoma proliferation inhibition by increasing ferroptosis triggered by unstable iron pools and GPX4 depletion
doi: 10.1111/jcmm.18318
Figure Lengend Snippet: Orexin‐A induces differential expression of ferroptosis marker gene and related protein. (A) The heatmap based on the intersection of DEGs screened by sequencing and Ferroptosis marker genes in FerrDB V2 database. (B and C) The mRNA levels of TFRC, NFE2L2, PTGS2, CHAC1, FTH1 and GPX4 in orexin‐A‐treated U87 and U251 cells were detected by qRT‐PCR. (D) The protein levels of TFRC and FTH1 in orexin‐A‐treated U87 and U251 cells were detected by western blotting. (E) Representative fluorescent images of TFRC in U251 and U87 cells after treated by orexin‐A. Scale bars: 50 μm (400×). (F) The protein levels of GPX4 in orexin‐A‐treated U87 and U251 cells were detected by western blotting. Ctrl: treated with double distilled water; OXA: treated with orexin‐A (0.1 μM). (G) Representative immunohistochemical images of TFRC, FTH1 and GPX4 in Xenograft glioma after treated by orexin‐A. Scale bars: 100 μm (200×). Ctrl: treated with double distilled water; OXA: treated with orexin‐A (0.1 mg/kg/bw; * p < 0.05, ** p < 0.01, *** p < 0.001).
Article Snippet: Antibodies against Ki‐67 (D3B5), TFRC (D7G9X), FTH1 (D1D4) and GAPDH (D16H11) were purchased from Cell Signaling (USA).
Techniques: Quantitative Proteomics, Marker, Sequencing, Quantitative RT-PCR, Western Blot, Immunohistochemical staining