Fig. 2From: Circular RNA circFGFR1 promotes progression and anti-PD-1 resistance by sponging miR-381-3p in non-small cell lung cancer cellsEffects of forced circFGFR1 expression on the progression of the NSCLC cells. a and b NSCLC cell proliferation after the expression of circFGFR1 was upregulated, as assessed by CCK-8 assay (a) and clonal formation assay (b). c and d NSCLC cell migration and invasion after the expression of circFGFR1 was upregulated, as assessed by wound-healing assay (c) and Matrigel Transwell assay (d). e and f Tumor growth and metastatic ability of NSCLC cells with the upregulated circFGFR1 expression was investigated in nude mice xenograft tumor models. The data are presented as the mean ± SD, *P < 0.05, **P < 0.01Back to article page