For cell apoptosis quantification, cell viability was determined by staining with Annexin V, Alexa Fluor 488 conjugate (Life Technologies, A13201) and propidium iodide (Life Technologies, P21493) and detected by flow cytometry (BD FACSVERSE) according to the Annexin V flow cytometry protocol. Western blot of the Cleaved Caspase-3 antibody (ABGENT, AP3725a) was measured for the Caspace-3 abundance. The cells were collected for flow cytometry assays or total protein lysate 48 h after transfection.
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