HARS1 and nasopharyngeal carcinoma: Liu et al. (Liu et al., 2021c) also proposed that circ-ZNF609 was highly expressed in NPC tissues and cell lines, by binding to miR-338-3p to negatively regulate its expression, upregulating histidyl-tRNA synthetase (HARS) that promoted the proliferation, migration, invasion, and glycolysis of NPC, and xenograft experiments proved the result in vitro.