Brain lipid binding protein mediates the proliferation of human glioblastoma cells by regulating ERK1/2 signaling pathway in vitro

Brain lipid binding protein mediates the proliferation of human glioblastoma cells by regulating ERK1/2 signaling pathway in vitro
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脑脂质结合蛋白通过调节ERK1/2信号通路介导人胶质母细胞瘤细胞的体外增殖

DOI:
10.1007/s11626-017-0220-8
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发表时间:
2017-12
影响因子:
2.1
通讯作者:
Li Haoming
Li Haoming
中科院分区:
生物学4区
文献类型:
--
作者:
Tian Wei;Shi Jinhong;Qin Jianbing;Jin Guohua;Han Xiao;Li Haoming

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脑脂质结合蛋白(BLBP)在中枢神经系统(CNS)的放射状胶质细胞(RGC)、胶质母细胞瘤和体外U251细胞中高度表达。在这份报告中,我们已经证明了胶质母细胞瘤中BLBP表达增加与存活率低下相关,并使用双载体CRISPR/Cas9慢病毒系统从U251细胞中耗尽内源性BLBP,我们发现BLBP的缺失诱导细胞生长抑制和S期阻滞。此外,在BLBP耗竭后观察到P53增加和p-ERK 1/2减少,表明BLBP缺失导致生长抑制的潜在机制。
Brain lipid binding protein (BLBP) is highly expressed in the radial glial cells (RGCs) of the central nervous system (CNS), in glioblastomas, and, in vitro, in U251 cells. In this report, we have demonstrated that increased BLBP expression in glioblastoma is associated with poor survival and used a double-vector CRISPR/Cas9 lentiviral system to deplete endogenous BLBP from U251 cells, we found that loss of BLBP induced cell growth inhibition and S-phase arrest. Moreover, an increase in P53 and a decrease in p-ERK1/2 were observed after BLBP depletion, suggesting a potential mechanism by which loss of BLBP results in growth inhibition.
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