KCNB2 antisense RNA 1 (KCNB2-AS1)

KCNB2 antisense RNA 1 (KCNB2-AS1) is a long noncoding RNA (lncRNA) identified in human tissue and associated with the regulation of gene expression at the RNA level[5]. It does not encode a protein but functions to modulate gene expression, primarily by binding and regulating microRNAs such as miR-3194-3p. In cancer biology, particularly in esophageal cancer, KCNB2-AS1 is upregulated and has been shown to promote cell proliferation, invasion, and migration by upregulating the expression of glycogen phosphorylase L (PYGL) through sequestration of miR-3194-3p. Because of these properties, it is under investigation as a potential biomarker in oncology, but it is not currently considered a direct therapeutic target such as a receptor, enzyme, or transporter[2][5].

Acts as a molecular sponge or inhibitor of microRNAs (e.g., binds to miR-3194-3p); Upregulates downstream effectors (e.g., glycogen phosphorylase L [PYGL] via miR-3194-3p interaction)