CircSEMA4B serves as a miR-431 sponge to compete with SFRP1 or GSK-3beta for miR-431 binding, thus inhibiting IL-2beta-induced degenerative process in NPCs through Wnt signaling.
CircSEMA4B targets miR-431 modulating IL-1beta-induced degradative changes in nucleus pulposus cells in intervertebral disc degeneration via Wnt pathway.