IHC staining and H-Score calculating were performed as our previous research [17 (link)]. The primary antibodies used in the assay were anti-RRAGB (1:300, 13,023–1-AP, Proteintech, USA), anti-p-mTOR (Ser2448) (1:200, YP0176, Immunoway, USA), anti-HIF1A (1:300, YT2133, Immunoway, USA), and anti-cleaved-caspase3 (1:100, YM3431, Immunoway, USA).
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