FBLN5 and gastric cancer: To address whether NDUFS1 suppresses the FBLN5 expression via attenuating mROS-HIF1α signaling in GC cells, we conducted HIF1α siRNA and mROS inhibitor assays in NDUFS1-interfering N87 GC cells and subsequently analyzed FBLN5 by RT-qPCR and WB, respectively.