HIF1α-SP1 Interaction Disrupts the Circ-0001875/miR-31-5p/SP1 Regulatory Loop under a Hypoxic Microenvironment and Promotes Non-Small Cell Lung Cancer Progression

High-throughput RNA sequencing was performed to identify significantly expressed circRNAs in NSCLC tissues. The functions of circ-0001875 in NSCLC cells were investigated in vitro and in vivo.