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. 2021 Sep;9(17):1376. doi: 10.21037/atm-21-227

Figure 3.

Figure 3

Exosomes derived from TNF-α-treated rat NPCs induced NPC apoptosis and repressed IGF-1 expression. (A) Flow cytometry showing the effects of exosomes from TNF-α-treated nucleus pulposus cells (NPCs, TNF-exos) on apoptosis. (B) Western blot analyzing the pro-apoptosis and anti-apoptosis protein markers in NPCs (C) Western blot analyzing the effects of TNF-Exos on insulin-like growth factor 1 (IGF-1) expression. Data are expressed as the mean ± SD, n=3. *P<0.05, **P<0.01 versus the indicated group. TNF, tumor necrosis factor; NPCs, nucleus pulposus cells; SD, standard deviation.