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. 2023 Nov 24;27:120. doi: 10.1186/s40824-023-00447-x

Fig. 4.

Fig. 4

PDT leading to apoptotic cell death in 4T1 cells. a The mitochondrial membrane potential of 4T1 cells was detected by JC-1. Scale bar: 20 μm. b Annexin V-FITC/PI apoptosis kit was used to detect the apoptosis of 4T1 cells and analyze the quantitative apoptosis rate. (n = 3, *P < 0.05, **P < 0.01, ***P < 0.001, ***P < 0.001, ****P < 0.0001)