慢病毒介導的GSK-3β基因穩(wěn)定沉默表達的SH-SY5Y細胞系建立
[Abstract]:Aim to construct RNA interference lentivirus vector targeting glycogen synthesis kinase 3 尾 (GSK-3 尾) gene and establish a cell line model of human neuroblastoma cell line (SH-SY5Y) whose expression of GSK-3 尾 gene is silenced. Methods according to the GSK-3 尾 mRNA sequence, the short hairpin RNA (shRNA) sequence of the target gene was designed and synthesized, and the lentivirus expression vector was constructed. The recombinant lentiviral vector was co-transfected with the packaging vector to 293T cells by restriction endonuclease digestion and sequencing. SH-SY5Y cells were infected with purified and concentrated virion. The transfected cells were divided into lentivirus interference group (experimental group), negative control group (Lenti-NC group) and blank control group (Blank group) by green fluorescence tracer. The expression levels of GSK-3 尾 mRNA and protein were detected by qRT-PCR and Western blot methods. Results shRNA lentivirus targeting GSK-3 尾 was successfully constructed. Recombinant lentivirus was transfected into human SH-SY5Y cells. After 72 hours, the transfection efficiency was more than 90%. Compared with the control group, the target gene changes showed that the recombinant lentivirus was transfected into SH-SY5Y cells. The expression of GSK-3 尾 mRNA and protein in the experimental group was significantly lower than that in the control group (P0.01). Conclusion the lentivirus-mediated stable silencing expression of GSK-3 尾 gene in SH-SY5Y cell model can be established effectively, which provides an experimental tool for evaluating the drug or behavioral therapy of AD after GSK-3 尾 silencing in vitro.
【作者單位】: 山東大學附屬濟南市中心醫(yī)院神經(jīng)內(nèi)科;濟南市第四人民醫(yī)院內(nèi)分泌科;
【基金】:國家自然科學基金資助項目(No:30970989)
【分類號】:R749.16
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