Fig. 2: In vitro therapy effect of SPHN in CNE-1 cells.

a Apoptosis of CNE-1 cells treated with PBS, X-rays, SPHN, or SPHN + X-rays. b γ-H2AX-stained CNE-1 cells treated with PBS, X-rays, SPHN, or SPHN + X-rays. Scale bar = 50 µm. c Western blot and statistical analysis of γ-H2AX and H2AX in CNE-1 cells after treatment with PBS, X-rays, SPHN, or SPHN + X-rays. *P < 0.05, **P < 0.01, ***P < 0.001.