[1]耿雯,秦丰,任佳绪,等.核糖体蛋白L41对人视网膜母细胞瘤Y79细胞增殖和凋亡的影响及其机制[J].眼科新进展,2018,38(3):214-217.[doi:10.13389/j.cnki.rao.2018.0049]
 GENG Wen,QIN Feng,REN Jia-Xu,et al.Effects of ribosomal protein L41 (RPL41) on the proliferation and apoptosis of human retinoblastoma Y79 cells and its mechanisms[J].Recent Advances in Ophthalmology,2018,38(3):214-217.[doi:10.13389/j.cnki.rao.2018.0049]
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核糖体蛋白L41对人视网膜母细胞瘤Y79细胞增殖和凋亡的影响及其机制/HTML
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《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:
38卷
期数:
2018年3期
页码:
214-217
栏目:
实验研究
出版日期:
2018-03-05

文章信息/Info

Title:
Effects of ribosomal protein L41 (RPL41) on the proliferation and apoptosis of human retinoblastoma Y79 cells and its mechanisms
作者:
耿雯秦丰任佳绪徐晓鹤王爱媛
110004 辽宁省沈阳市,中国医科大学附属盛京医院眼科
Author(s):
GENG WenQIN FengREN Jia-XuXU Xiao-HeWANG Ai-Yuan
Department of Ophthalmology,Shengjing Hospital of China Medical University,Shenyang 110004,Liaoning Province,China
关键词:
视网膜母细胞瘤核糖体蛋白L41细胞增殖细胞凋亡活化转录因子4
Keywords:
retinoblastomaRPL41cell proliferationcell apoptosisATF4
分类号:
R774
DOI:
10.13389/j.cnki.rao.2018.0049
文献标志码:
A
摘要:
目的 研究核糖体蛋白L41(ribosomal protein L41,RPL41)对人视网膜母细胞瘤Y79细胞增殖和凋亡的影响及其机制。方法 将人视网膜母细胞瘤Y79细胞接种于含体积分数10%胎牛血清的RPMI 1640培养液中传代培养。根据药物处理浓度分为对照组(RPL41浓度为0 μmol·L-1)、40 μmol·L-1 RPL41处理组、80 μmol·L-1 RPL41处理组、120 μmol·L-1 RPL41处理组。CellTiter-Glo荧光细胞活性检测系统检测各组细胞活性;流式细胞仪检测100 μmol·L-1 RPL41处理后细胞凋亡率,Hoechst染色观察细胞凋亡形态;Western blot检测各组细胞中活化转录因子4(activating transcription factor 4,ATF4)的含量。结果 与对照组相比,40 μmol·L-1 RPL41处理组细胞活性为(97.9±1.5)%,无明显变化,差异无统计学意义(P=0.055);80 μmol·L-1 RPL41处理组细胞活性为(87.6±1.8)%,120 μmol·L-1 RPL41处理组为(63.9±2.0)%,与对照组相比差异均有统计学意义(均为P<0.05)。RPL41对Y79细胞增殖有明显的抑制作用。100 μmol·L-1RPL41能够促进Y79细胞凋亡,凋亡率为(17.33±2.47)% 。100 μmol·L-1RPL41处理组凋亡细胞与正常细胞相比,细胞颜色较亮,细胞体积较小。40 μmol·L-1 RPL41处理组ATF4蛋白含量为0.76±0.04,80 μmol·L-1 RPL41处理组为0.29±0.04,120 μmol·L-1 RPL41处理组为0.29±0.05,与对照组相比,差异均有统计学意义(均为P<0.01)。RPL41能够降低Y79细胞中ATF4的蛋白含量。结论 RPL41能抑制人视网膜母细胞瘤Y79细胞增殖,诱导细胞凋亡,其作用机制可能与ATF4有关。
Abstract:
Objective To study the effects of ribosomal protein L41 (RPL41) on the proliferation and apoptosis of human retinoblastoma Y79 cells and its underlying mechanisms.Methods Y79 cells were seeded in RPMI 1640 medium containing 10% fetal bovine serum for passage culture.Then the cells were divided into control group,with cells left untreatment,(40 μmol·L-1,80 μmol·L-1 and 120 μmol·L-1 ) RPL41 treatment group according to the concentration.Next CellTiter-Glo fluorescence cell viability testing system was used to observe the viability of Y79 cells in all groups,and flow cytometry was applied to measure the cell apoptotic rate in 100 μmol·L-1 RPL41 treatment group,with Hoechst staining for the observation of nuclear morphometry of apoptotic cells,and finally,Western blot was used to determine the expression of activating transcription factor 4 (ATF4) of each group.Results Compared with the control group,the viability of Y79 cells in the 40 μmol·L-1 RPL41 treatment group was (97.9±1.5)%,with no significant difference (P=0.055);and the viability in the 80 μmol·L-1 and 120 μmol·L-1 RPL41 treatment group was (87.6±1.8)% and (63.9±2.0)%,respectively,both of which were significantly different from the control group (both P<0.05),so RPL41 inhibited the viability of Y79 cells,and 100 μmol·L-1 RPL41 promoted the apoptosis of Y79 cells,with the apoptotic rate of (17.33±2.47)%.Compared with normal cells,the apoptotic cells in the 100 μmol·L-1 RPL41 treatment group showed bright color and smaller cell volume by Hoechst staining.Western blot showed that PRL41 significantly decreased the expression of ATF4 protein and the expression of ATF4 protein in the 40 μmol ·L-1,80 μmol·L-1 and 120 μmol·L-1 treatment group were 0.76±0.04,0.29±0.04,0.29±0.05,respectively,all of which were significantly different from the control group (all P<0.01).Conclusion RPL41 can inhibit the proliferation and promote the apoptosis of human retinoblastoma Y79 cell,and its mechanism may be related to the expression of ATF4.

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备注/Memo

备注/Memo:
国家自然科学基金面上项目(编号:81372878)
更新日期/Last Update: 2018-03-05