Research Article

Paeoniflorin Enhances the Sensitivity of ER-Positive Breast Cancer Cells to Tamoxifen through Promoting Sirtuin 4

Figure 5

Deletion of SIRT4 increases paeoniflorin-enhanced tamoxifen-induced ER-positive breast cancer cell apoptosis. 48 hours after transfecting with si-SIRT4, T47D and MCF-7 cells were treated with or without PF (60 μM) or TAM (8 μM for T47D and 16 μM for MCF-7) for 48 hours, and the cell viability was determined using the CCK8 assay kit. Data were expressed as mean ± SD with 3 independent repetitions. , , and between two groups. PF = paeoniflorin; TAM = tamoxifen.