The cell lines SK-N-SH, and SH-SY5Y were purchased from Procell Life Science & Technology (CL-0214, CL-0208, Wuhan, China). SK-N-SH, SH-SY5Y, SK-N-BE(2) cells were cultured in MEM (C11095500BT, Gibco, NY, USA) containing 10% fetal bovine serum and an appropriate concentration of penicillin-streptomycin antibiotics (15140-122, Gibco, NY, USA). Cell line authentication was performed using short tandem repeat DNA profiling, and mycoplasma detection was regularly performed using a PCR-based method. All cell lines were cultured in a humidified atmosphere with 5% CO2 at 37°C.
Plasmids carrying CDC27 were constructed previously (17 (link)). Premixed siRNA was purchased from Santa Cruz (siCDC27:sc-77362, siNC: sc-37007). Growing cells were added to six-well plates and then transfected with plasmid or siRNA using Lipofectamine 2000 transfection reagent (Invitrogen) following the manufacturer’s instructions.
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