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中华细胞与干细胞杂志(电子版) ›› 2019, Vol. 09 ›› Issue (02) : 79 -85. doi: 10.3877/cma.j.issn.2095-1221.2019.02.003

论著

青光安颗粒剂对TGF-β1诱导的HTFs增殖影响的实验研究
喻娟1, 彭清华1,()   
  1. 1. 410000 长沙,湖南中医药大学第一附属医院眼科
  • 收稿日期:2019-02-21 出版日期:2019-04-01
  • 通信作者: 彭清华
  • 基金资助:
    国家自然科学基金资助项目(81603665)

Effect of Qingguang' an granule on the proliferation of HTFs induced by TGF-beta 1

Juan Yu1, Qinghua Peng1,()   

  1. 1. Department of Ophthalmology, the First Affiliated Hospital of Hunan University of Traditional Chinese Medicine, Changsha 410000, China
  • Received:2019-02-21 Published:2019-04-01
  • Corresponding author: Qinghua Peng
引用本文:

喻娟, 彭清华. 青光安颗粒剂对TGF-β1诱导的HTFs增殖影响的实验研究[J]. 中华细胞与干细胞杂志(电子版), 2019, 09(02): 79-85.

Juan Yu, Qinghua Peng. Effect of Qingguang' an granule on the proliferation of HTFs induced by TGF-beta 1[J]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2019, 09(02): 79-85.

目的

探讨青光安颗粒剂抑制转化生长因子β1 (TGF-β1)诱导的人类Tenon成纤维细胞(HTFs)增殖的可能机制。

方法

从接受青光眼滤过手术(GFS)的个体获得人结膜下Tenon胶囊样品。实验设计分为3组:对照组(HTFs未经处理,n = 10);TGF-β1诱导组(100 ng/ ml TGF-β1诱导HTFs,构建GFS术后细胞模型,n = 10);TGF-β1+青光安治疗组(TGF-β1诱导+青光安颗粒剂血清处理HTFs,n = 30)。TGF-β1+青光安治疗组按照青光安血清的剂量进一步分为3组:TGF-β1+青光安高剂量组(TGF-β1诱导+青光安颗粒剂血清5 ml处理HTFs);TGF-β1+青光安中剂量组(TGF-β1诱导+青光安颗粒剂血清2.5 ml处理HTFs);TGF-β1+青光安低剂量组(TGF-β1诱导+青光安颗粒剂血清处理1 ml HTFs);每组设10个培养皿。通过CCK-8检测青光安对TGF-β1诱导HTFs增殖的影响;通过流式细胞术评估青光安对细胞周期的影响;通过Cyto-ID免疫细胞化学染色测定青光安颗粒剂对HTFs细胞自噬的影响;采用RT-PCR和Western Blot法测定自噬体形成的必需蛋白质Beclin-1,ATG-5和LC3-Ⅲ基因和蛋白的表达水平。多组间比较采用单因素方差分析,组间两两比较采用LSD-t检验。

结果

青光安能够抑制TGF-β1诱导HTFs的增殖能力,TGF-β1+青光安高剂量组细胞增殖水平(13.52±1.24)较TGF-β1诱导组(23.42±1.25)降低,差异有统计学意义(F = 12.347,P < 0.01);TGF-β1诱导G0/ G1期的比例(88.29±0.35)降低,而S期的比例(9.04±0.25)升高,而青光安治疗能够导致G0/ G1期的比例(91.18±1.04)增加,而S期的比例(5.41±0.59)降低,差异有统计学意义(F = 13.857,P < 0.01);与TGF-β1诱导组相比,用TGF-β1+青光安治疗组导致荧光染色强度(1.84±0.14)降低,HTFs阳性细胞数目(112.46±12.11)减少,差异有统计学意义(F = 12.347,P = 18.472);TGF-β1+青光安治疗组能抑制TGF-β1诱导对自噬基因Beclin-1、ATG-5和LC- 3Ⅲ mRNA和蛋白质表达增加(P < 0.05)。

结论

青光安颗粒剂抑制TGF-β1诱导的HTFs增殖,且可能机制为青光安诱导HTFs细胞周期停滞于G0/G1期,而且青光安可减少TGF-β1诱导的HTFs自噬。

Objective

To explore the possible mechanism of Qingguang' an granule inhibiting the proliferation of HTFs induced by TGF-β1.

Methods

Samples of human subconjunctival Tenon capsules were obtained from individuals undergoing GFS surgery. The experimental design was divided into three groups: a control group (HTFs untreated, n = 10) ; TGF- β1 induction group (100 ng/ml TGF-β1 induced HTFs, constructed cell model after GFS, n = 10) ; TGF-β1 + Qingguang' an treatment group (TGF-β1 induced + Qingguang' an granule serum treated HTFs, n = 30). The treatment group was further divided into three groups according to the dose of Qingguang' an serum: the high dose group of TGF-β1 + Qingguang' an (TGF-β1 induction + Qingguang' an granule serum 5 ml for HTFs), the medium dose group of TGF-β1 + Qingguang' an granule serum 2.5 ml for HTFs, and the low dose group of TGF-β1 + Qingguang' an granule serum 1 ml for HTFs; There were 10 Petri dishes in each group. The effect of glaucoma on the proliferation of TGF-β1-induced HTFs was detected by CCK-8; the effect of glaucoma on cell cycle was evaluated by flow cytometry; the Cyans granules were determined by Cyto-ID immunocytochemical staining. The effect of autophagic cells; the expression levels of the essential proteins Beclin-1, ATG-5 and LC3-Ⅲ genes and proteins formed by autophagosomes were determined by RT-PCR and Western Blot.

Results

Qingguang' an inhibited the proliferation of HTFs cells induced by TGF-beta1. The proliferation level of HTFs cells in the high dose group of TGF-β1+Qingguang' an (13.52±1.24) was lower than that in the high dose group of TGF-β1 (23.42±1.25), with a statistically significant difference (F = 12.347, P < 0.001) ; the proportion of G0/G1 phase induced by TGF-β1 (88.29±0.35) was lower, while the proportion of S phase (9.04±0.25) was higher. The proportion of G0/G1 phase was increased (91.18±1.04), while that of S phase was decreased (5.41+0.59), with a significant difference (F = 13.857, P = 0.007) ; compared with TGF-β1 induced group, the intensity of fluorescence staining decreased (1.84+0.14) and the number of HTFs-positive cells was decreased (112.46+12.11), with a significant difference (F = 12.347, P = 18.472). TGF-β1 + Qingguang' an treatment group inhibited the increase of expression of autophagy gene Beclin-1, ATG-5 and LC-3Ⅲ mRNA and protein induced by TGF-β1 (P < 0.05) .

Conclusion

Qingguang' an granule inhibits the proliferation of HTFs induced by TGF-β1, and the possible mechanism is that Qingguang' an induces HTFs cell cycle to stagnate at G0/G1 phase, and Qingguang' an can reduce the autophagy of HTFs induced by TGF-β1.

表1 RT-PCR引物序列
表2 青光安颗粒剂抑制HTFs的活力( ± s
表3 TGF-β1和青光安治疗对HTFs细胞周期的影响(%, ± s
表4 青光安颗粒剂对HTFs细胞自噬的影响( ± s
图1 荧光显微镜下观察Cyto-ID免疫细胞化学SP染色结果(×400)注:a图为对照组,b图为TGF-β1诱导组,c图为TGF-β1+青光安治疗组。对照HTFs在细胞质中表现出弱的绿色点状染色。在用TGF-β1处理后,在细胞中显示出增强的HTFs细胞自噬
表5 自噬相关基因mRNA的表达水平( ± s
图2 自噬相关基因mRNA的表达水平
表6 HTFs中自噬相关基因表达量( ± s
图3 免疫印迹分析Beclin-1、ATG-5和LC-3Ⅲ蛋白的表达量
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