Among the lncRNAs, small nucleolar RNA host gene 3 (SNHG3) exerts a positive regulatory effect on the expression of SUMO2 by acting as a molecular sponge for miR-515-5p, has been found to be overexpressed in lung cancer tissues and cells, and is known to promote cell proliferation, migration, invasion, and EMT process (Li et al. 2021). Here, SNHG3 is linked to lung cancer.