氧化石墨烯促进HaCaT细胞迁移及初步机制研究

杨涛; 周代君; 王淞; 王颖; 胡晓红; 张小容; 贺伟峰; 夏合生; 邢孟秋; 吴军; 罗高兴

doi:10.16016/j.1000-5404.201712234

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氧化石墨烯促进HaCaT细胞迁移及初步机制研究

基础医学 | 更新时间：2026-01-09

- 氧化石墨烯促进HaCaT细胞迁移及初步机制研究
- Effect of graphene oxide in promoting HaCaT cell migration in vitro and possible mechanisms
- 第三军医大学学报 2018年40卷第10期页码：889-897
- 作者机构：
  
  1.400038 重庆，陆军军医大学(第三军医大学)第一附属医院全军烧伤研究所，创伤、烧伤与复合伤国家重点实验室
  2.610064 成都，四川大学高分子研究所，高分子材料工程国家重点实验室
  3.MB R3T 2N2加拿大温哥华，曼尼托巴大学和曼尼托巴儿童健康研究所，机械工程、生物化学和医学遗传学系
- 作者简介：
  
  [ 罗高兴, E-mail: logxw@hotmail.com LUO Gaoxing, E-mail: logxw@hotmail.com
- 基金信息：
  
  国家自然科学基金重点项目(81630055);陆军军医大学西南医院重大领域技术创新项目(SWH2016ZDCX2014)
- DOI：10.16016/j.1000-5404.201712234
  中图分类号： R318.08;R322.99;R329.28
- 收稿：2017-12-25，
  
  修回：2018-02-07，
  
  纸质出版：2018-05-30
- 稿件说明：
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杨涛, 周代君, 王淞, 等. 氧化石墨烯促进HaCaT细胞迁移及初步机制研究[J]. 第三军医大学学报, 2018,40(10):889-897.

Tao YANG, Daijun ZHOU, Song WANG, et al. Effect of graphene oxide in promoting HaCaT cell migration in vitro and possible mechanisms[J]. Journal of Third Military Medical University, 2018, 40(10): 889-897.
杨涛, 周代君, 王淞, 等. 氧化石墨烯促进HaCaT细胞迁移及初步机制研究[J]. 第三军医大学学报, 2018,40(10):889-897. DOI： 10.16016/j.1000-5404.201712234.

Tao YANG, Daijun ZHOU, Song WANG, et al. Effect of graphene oxide in promoting HaCaT cell migration in vitro and possible mechanisms[J]. Journal of Third Military Medical University, 2018, 40(10): 889-897. DOI： 10.16016/j.1000-5404.201712234.

摘要

目的

观察氧化石墨烯(grapheneoxide

GO)对人表皮细胞株HaCaT细胞迁移的影响，初步探讨其可能机制。

方法

将HaCaT细胞分别应用GO终浓度为0、0.001、0.01、0.1、1.0、10.0 μg/mL的RPMI1640细胞培养液培养，在培养的不同时相点，应用CCK-8法检测细胞活性，蛋白印迹法检测PCNA表达。采用划痕实验检测细胞迁移情况，激光共聚焦显微镜观察细胞骨架改变，蛋白质印迹法检测细胞F-actin、Vinculin的表达。

结果

(1) 低浓度GO对HaCaT细胞增殖无影响，当GO浓度高于1.0 μg/mL时则具有明显的毒性作用。10.0 μg/mL GO可明显抑制细胞PCNA表达(

0.05)。(2)划痕实验结果显示：低浓度GO可促进HaCaT细胞迁移，其中以0.01 μg/mL浓度效果最明显，在划痕后24 h，该组细胞迁移面积比对照组增加35.33% (

0.01)。(3)激光共聚焦显微镜观察发现，0.01 μg/mL GO刺激后，细胞纤毛明显增多，胞内应力性纤维增粗。而其1.0 μg/mL组细胞变小、变圆。(4)蛋白印迹法检测结果显示：0.01 μg/mL GO刺激后F-actin表达增加(

0.05)，而1.0 μg/mL作用后F-actin表达却明显低于对照组。GO能促进Vinculin表达，但仅当GO浓度高于0.1 μg/mL后差异才有统计学意义。

结论

特定浓度的GO可促进HaCaT细胞迁移，可能与其影响细胞骨架及F-actin、Vinculin表达有关。

Abstract

Objective

To investigate the effect of graphene oxide (GO) on the migration of human epidermal cell line (HaCaT cells) and explore the possible mechanisms.

Methods

HaCaT cells were cultured in RPMI1640 media containing different concentrations of GO for 24~72 h

and the changes in cell viability and proliferation were examined using the cell counting kit-8 (CCK-8) assay. The changes in cell migration were assessed in a cell scratch model. The cytoskeletons of the treated cells were observed using confocal laser scanning microscope (CLSM)

and the expression levels of proliferating cell nuclear antigen (PCNA)

F-actin and vinculin after GO treatment were detected using Western blotting.

Results

Compared with the control cells

the cells exposed to low concentrations of GO for 24 h exhibited no significant changes in cell viability

while GO at concentrations above 1.0 μg/mL caused obvious cytotoxicity (

0.01)

and treatment with 10.0 μg/mL GO for 24 h resulted in significantly decreased PCNA expression in the cells (

0.05). Scratch wound assay showed that GO at low concentrations was capable of promoting the migr

ation of HaCaT cells

and the effect was the strongest at 0.01 μg/mL

which significantly increased the cell migration rate by 35.33% at 24 h (

0.01); GO at 1.0 μg/mL obviously inhibited the cell migration (

0.01). CLSM demonstrated an obviously increased number of cell cilia and thickened cell stress fibers in cells exposed to 0.01 μg/mL GO. Incubation of the cells with 0.01 μg/mL GO significantly increased the expression level of F-actin

while 1.0 μg/mL GO significantly suppressed F-actin expression (

0.05). GO also enhanced the expression of vinculin in the cells

and the changes were statistically significant when GO concentration was above 0.1 μg/mL.

Conclusion

GO within a defined concentration range can significantly promote the migration of HaCaT cells

the mechanism of which may involve the regulation of F-actin and vinculin expressions and cytoskeleton rearrangement.

关键词

Keywords

references

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