罗哌卡因对HeLa细胞自噬及自噬溶酶体的影响

    Effect of ropivacaine on autophagy and autolysosomes in HeLa cells

    • 摘要: 目的:探究罗哌卡因对HeLa细胞自噬及自噬溶酶体的影响方法:采用HeLa、HeLa-GFP-LC3、HeLa-RFP-LAMP1等细胞系进行研究,并将细胞分为空白对照组、饥饿组(饥饿处理0、4、12 h)和罗哌卡因组(10 mg/mL罗哌卡因,处理0、4、12 h),使用显微成像技术联合多种生化手段检测罗哌卡因处理的细胞中自噬的诱导、自噬溶酶体形态及溶酶体数目。结果:罗哌卡因组与空白对照组细胞相比产生大量LC3点状聚集,并且LC3Ⅱ蛋白水平明显提高(P<0.05);相比于空白对照组细胞,罗哌卡因组和饥饿组细胞经4 h处理后产生大量自噬溶酶体,罗哌卡因组细胞自噬溶酶体体积大于饥饿处理组;饥饿组细胞溶酶体数目在4 h减少,而在12 h有所恢复,但是罗哌卡因组细胞溶酶体数目持续减少无法恢复。结论:罗哌卡因可引发HeLa细胞自噬并破坏自噬溶酶体。

       

      Abstract: Objective:To investigate the effects of ropivacaine on autophagy and autolysosomes in HeLa cells.Methods:The HeLa,HeLa-GFP-LC3 and HeLa-RFP-LAMP1 cell lines were divided into the blank control group,starvation group(starving for 0,4 and 12 hours) and ropivacaine group(10 mg/mL ropivacaine treating for 0,4 and 12 hours).The induction of autophagy,morphology of autolysosomes and numbers of lysosomes in HeLa,HeLa-GFP-LC3 and HeLa-RFP-LAMP1 cell lines treated with ropivacaine were detected using the microscopic imaging technique combined with a variety of biochemical means.Results:Compared with the blank control cells,the LC3 puncta and LC3Ⅱ protein level significantly increased in ropivacaine group(P<0.05).Compared with the blank control cells,many autolysosomes in ropivacaine group and starvation group were identified after 4 hours of treatment,and the autolysosomes size in ropivacaine group was bigger than that in starvation group.The number of lysosomes in starvation group began to reduce at 4 hours of treatment,and recovered at 12 hours of treatment,but which in ropivacaine group gradually decreased and could not recover in HeLa cells.Conclusions:Ropivacaine can induce the autophagy,and damage autolysosomes.

       

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