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收稿日期:2019-08-27,
修回日期:2019-11-20,
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内源性过表达Nestin对NIH3T3细胞增殖、迁移及MAPK信号传导通路的影响[J/OL]. 第三军医大学学报, 2022,1-9.
Effects of endogenous nestin overexpression on proliferation, migration and MAPK signal transduction pathway in NIH3T3 cells[J/OL]. Journal of Third Military Medical University, 2022,1-9.
内源性过表达Nestin对NIH3T3细胞增殖、迁移及MAPK信号传导通路的影响[J/OL]. 第三军医大学学报, 2022,1-9. DOI: 10.16016/j.1000-5404.201908194-.
Effects of endogenous nestin overexpression on proliferation, migration and MAPK signal transduction pathway in NIH3T3 cells[J/OL]. Journal of Third Military Medical University, 2022,1-9. DOI: 10.16016/j.1000-5404.201908194-.
目的
2
通过在成纤维细胞NIH3T3中内源性过表达巢蛋白(Nestin),研究其对细胞增殖、迁移及转化生长因子(TGF-β1)作用下细胞胶原蛋白表达与MAPK相关通路的影响。
方法
2
通过CRISPR/SAM技术构建内源性过表达Nestin 的细胞株,用MTS实验、Western blot检测细胞增殖能力,细胞划痕实验检测细胞迁移能力,经qPCR、Western blot与免疫荧光染色明确TGF-β1对其胶原蛋白与MAPK通路的影响。
结果
2
CRISPR/SAM技术能使内源性Nestin表达显著提高(
P
<
0.05),而内源性过表达Nestin对NIH3T3细胞的生长、迁移有明显促进作用(
P
<
0.05),对TGF-β1诱导的胶原蛋白表达及MAPK的激活也有明显的抑制效应(
P
<
0.01)。
结论
2
用CRISPR/SAM技术内源性过表达Nestin 可以明显促进NIH3T3细胞的生长和迁移,但却抑制TGF-β1诱导下胶原蛋白的表达及MAPK的激活。
Objective
2
To observe the effects of endogenous nestin overexpression on the proliferation and migration and transforming growth factor β (TGF-β1)-induced expressions of collagen and MAPK-related pathway in NIH3T3 fibroblasts.
Methods
2
CRISPR/SAM technique was used to construct a nestin-overexpressing cell line in NIH3T3 fibroblasts. The effects of nestin overexpression on cell proliferation and migration were evaluated using MTS assay, immunoblotting and scratch-wound assay. Quantitative PCR, immunoblotting and immunofluorescence staining were used to determine the effect of nestin overexpression on TGF-β-induced expression of collagen and activation of MAPK pathway in the fibroblasts.
Results
2
CRISPR/SAM significantly increased the expression of endogenous nestin in NIH3T3 fibroblasts (
P
<
0.05), and nestin overexpression significantly promoted the growth and migration of NIH3T3 cells (
P
<
0.05). Nestin overexpression obviously inhibited the expression of collagen and the activation of MAPK in TGF-β1-induced cells (
P
<
0.01).
Conclusion
2
Endogenous overexpression of nestin achieved by CRISPR/SAM technique significantly promotes the growth and migration of NIH3T3 cells and inhibits TGF- β1-induced expression of collagen and activation of MAPK.
NestinNIH3T3CRISPR/SAM增殖迁移MAPK
nestinNIH3T3CRISPR/SAMproliferationmigrationmitogen-activated protein kinase
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