Exosomal MATN3 of Urine-Derived Stem Cells Ameliorates Intervertebral Disc Degeneration by Antisenescence Effects and Promotes NPC Proliferation and ECM Synthesis by Activating TGF-β

Figure 3

Immunofluorescence analysis of NPC ECM synthesis of COL2 and ACAN. Blue indicates DAPI, green indicates COL2, and red indicates ACAN. The expression of COL2 and ACAN was significantly increased when NPCs were induced by USC-exos.