BC069792 can inhibit the proliferation, invasion and metastasis of breast cancer cells in vivo and in vitro through the ceRNA regulatory network of BC069792-hsa-miR-658/miR-4739-KCNQ-JAK2-AKT.Inc RNA BC069792 is expressed in both the cytoplasm and nucleus, which acts as a ceRNA sponge adsorbing miR-658 and miR-4739 and upregulates the transmembrane protein KCNQ4 expression, thereby inhibiting AKT phosphorylation and inhibiting the proliferation and metastasis of breast cancer (add citation). This evidence concerns the gene JAK2 and breast carcinoma.