ZHAO Ji-qing,LIN Hai,WU Qiang,LI Yun-peng,DONG Zhao-jun.Hypoxia-induced changes of JAK1/STAT1, 3 signal transduction pathway in PC12 cells[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(05):391-393.
ZHAO Ji-qing,LIN Hai,WU Qiang,LI Yun-peng,DONG Zhao-jun.Hypoxia-induced changes of JAK1/STAT1, 3 signal transduction pathway in PC12 cells[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(05):391-393.DOI:
目的 研究缺氧后PC12细胞蛋白酪氨酸激酶1/信号转导子与转录激活子1(janus kinase 1/signal transducer and activator of transcription 1
JAK1/STAT1)、STAT3 mRNA和蛋白表达变化。 方法 制备缺氧细胞模型。采用半定量RT-PCR技术和Western blot法检测缺氧PC12细胞的JAK1/STAT1、STAT3 mRNA和蛋白的表达水平,并对PCR产物进行测序。 结果 与对照组比较,缺氧2 h PC12细胞JAK1/STAT1、STAT3 mRNA和蛋白表达水平显著升高(P0.05),在缺氧6 h 达最高(P0.01),缺氧12 h的表达量降低(P0.05)。RT-PCR产物直接测序证实扩增产物片段与GenBank中相应序列相同。 结论 缺氧能增强PC12细胞中JAK1/STAT1、STAT3基因的表达,在缺氧所致脑损伤中可能发挥重要作用。
Abstract
Objective To study the effect of hypoxia on the expression of JAK1 and STAT1
3 in PC12 cell line. Methods PC12 cells were exposed to hypoxia and their mRNA and protein expression levels of JAK1 and STAT1
3 were detected by RT-PCR and Western blotting. The RT-PCR products were sequenced by Sanger’s double strand DNA sequence determination. Results The mRNA and protein expression levels of JAK1
STAT1
3 were increased in PC12 cells
reached the highest level at 6 h and decreased at 12 h
but always higher than that of control group. The sequences of amplification products by RT-PCR were the same as that in GenBank by sequencing. Conclusion Hypoxia reinforces the expressions of JAK1 and STAT1
3 in PC12 cells. JAK1/STAT1
3 possibly plays an important action in brain injury.