VEGFR-3通过PI3K/AKT信号通路促进触液神经元增殖的作用机制
胡茜 颜海健▲
贵州医科大学附属医院急诊科,贵州贵阳 550000
Mechanism of VEGFR-3 promoting proliferation of cerebrospinal fluid-contacting neurons through PI3K/AKT signaling pathway#br#
HU Qian YAN Haijian▲
Department of Emergency, Affiliated Hospital of Guizhou Medical University, Guizhou Province, Guiyang 550000, China
摘要 目的 探究血管内皮生长因子受体-3(VEGFR-3)通过PI3K/AKT通路促进触液神经元(CSF-CNs)增殖的作用。 方法 C57新生3 d小鼠10只取颈髓后分离CSF-CNs并分成四组:正常对照组、空载质粒对照组、VEGFR-3质粒组和抑制剂组,正常对照组不作特殊处理,空载质粒对照组加入空载质粒,VEGFR-3质粒组加入VEGFR-3质粒转染,抑制剂组在转染成功后加入PI3K/AKT抑制剂。处理24 h后检测各组神经球数目和直径,采用Western blot检测各组VEGFR-3、PI3K、AKT、p-AKT的表达。 结果 VEGFR-3质粒组VEGFR-3表达比正常对照组和空载质粒对照组高(P < 0.05),细胞转染48 h转染效率最高。与空载质粒对照组、抑制剂组比较,VEGFR-3质粒组神经球数量、直径增加(P < 0.05),PI3K、AKT及p-AKT表达水平增高(P < 0.05)。 结论 VEGFR-3能通过调控PI3K/AKT信号通路促进CSF-CNs增殖。
关键词 :
血管内皮生长因子受体-3 ,
PI3K/AKT信号通路 ,
触液神经元 ,
增殖
Abstract :Objective To investigate the effect of vascular endothelial growth factor receptor-3 (VEGFR-3) on the proliferation of cerebrospinal fluid-contacting neurons (CSF-CNs) through PI3K/AKT signaling pathway. Methods CSF-CNs were isolated from ten 3-day-old C57 newborn mice, and divided into four groups: normal control group, empty plasmid control group, VEGFR-3 plasmid group and inhibitor group. The normal control group was without special treatment, empty plasmid control group added empty plasmid, and VEGFR-3 plasmid dilution was added into VEGFR-3 plasmid group, PI3K/AKT inhibitor was added into transfected cells in inhibitor group. The number and diameter of neurospheres were detected after 24 h, and the expression of VEGFR-3, PI3K, AKT, and p-AKT were detected by Western blot. Results The expression of VEGFR-3 in VEGFR-3 plasmid group was higher than that in normal control group and empty plasmid control group (P < 0.05), and the transfection efficiency was the highest after 48 h. Compared with empty plasmid group and inhibitor group, the number and diameter of neurospheres in VEGFR-3 plasmid group increased (P < 0.05), and the expression of PI3K, AKT, and p-AKT in VEGFR-3 plasmid group were higher (P < 0.05). Conclusion VEGFR-3 can promote the proliferation of CSF-CNs by regulating PI3K/AKT signaling pathway.
Key words :
Vascular endothelial growth factor receptor-3
PI3K/AKT signaling pathway
Cerebrospinal fluid-contacting neurons
Proliferation
基金资助: 贵州省卫生健康委科学技术基金项目(gzwjkj20 19-1-053)。
通讯作者:
▲通讯作者
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