Lv et al. elucidated that circBACH2 serves as the miR-944 sponge, which counteracts the inhibitory effect of miR-944 on the m6A modulator HNRNPC, stimulating the expression of HNRNPC through the MAPK signaling pathway, and promoting BC cell proliferation and progression [106]. The gene discussed is HNRNPC; the disease is breast cancer.