Overexpression of miR-877 inhibits LC cell growth in vivo. (a). Relative tumor volume in each group; (b). Relative tumor weight in each group; (c). Relative positive rate of Ki67 in tumor cells by immunohistochemistry; (d). Representative images of TUNEL-positive rate in mouse tumors. Compared to the miR-NC group, * p < 0.05, ** p < 0.01, n = 5. miR-877, microRNA-877; LC, lung cancer; NC, negative control