Fig. 6

PD-L1 regulates proliferation-associated protein expression via activation of the PI3K-AKT-mTOR signaling axis. a, b Representative immunofluorescence staining was performed to assess the expression levels of Ki-67 (a) and PCNA (b) in hTERT⁺-AM cells subjected to the indicated treatments. Quantification of the mean fluorescence intensity (MFI) of Ki-67 and PCNA. The data are presented as the means ± SDs. Statistical significance was assessed via two-tailed unpaired Student’s t test (a, b)