Research Article

Exosomes Derived from Bone Mesenchymal Stem Cells Alleviate Compression-Induced Nucleus Pulposus Cell Apoptosis by Inhibiting Oxidative Stress

Figure 3

BMSC-Exos alleviate compression-caused cytotoxicity in NP cells. (a) CCK-8 assay tested the impact of BMSC-Exos (0, 20, 50, and 100 μg/ml) and compression on NP cell viability. (b) The NP cell proliferation was tested by an EdU incorporation assay. The EdU-positive cells displayed red fluorescence. Scale bar: 50 nm. (c) Quantification analysis percentage of EdU-positive cells. (d) Calcein-AM/PI staining tested the cytotoxicity effect of BMSC-Exos on NP cells caused by compression. Scale bar: 100 nm. (e) The released result of LDH in NP cells. Data are expressed as the from three independent experiments. versus the control group; # versus the compression group.
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