|Table of Contents|

The effect of upregulation of NRG1 on proliferation and apoptosis of thyroid cancer cells and its mechanism

Journal Of Modern Oncology[ISSN:1672-4992/CN:61-1415/R]

Issue:
2019 01
Page:
21-25
Research Field:
Publishing date:

Info

Title:
The effect of upregulation of NRG1 on proliferation and apoptosis of thyroid cancer cells and its mechanism
Author(s):
Fan Xinlong1Guo Nan1Gao Xin1Yang Xiao1Shi Gang2Zhao Yuejiao1
1.Department of Head and Neck Surgery;2.Department of Colorectal Surgery,Cancer Hospital of China Medical University,Liaoning Cancer Hospital & Institute,Liaoning Shenyang 110042,China.
Keywords:
NRG1thyroid cancerproliferationapoptosis
PACS:
R736.1
DOI:
10.3969/j.issn.1672-4992.2019.01.006
Abstract:
Objective:To investigate the effect and possible mechanism of neuregulin 1 (NGR1) on proliferation and apoptosis of thyroid cancer cell line MDA-T32 and B-CPAP.Methods:There was construction of the NRG1 overexpression vector pCDNA3.1-NRG1,transfection of thyroid cancer cell lines MDA-T32 and B-CPAP by Liposomal,then detection of the gene and protein expression of NRG1 by qRT-PCR and Western blotting.The MDA-T32 and B-CPAP cells proliferation were detected by CCK-8.The apoptosis of MDA-T32 and B-CPAP cells were detected by Flow cytometry with Annexin V/PI double staining.The expression of Caspase-3,Bax and Bcl-2 were detected by Western blotting.Results:The MDA-T32 and B-CPAP cells were successfully transfected by pCDNA3.1-NRG1.The results of qRT-PCR and Western blotting after transfection showed that the expression levels of NRG1 gene and protein were up-regulated.High expression of NRG1 could inhibit the proliferation of MDA-T32 and B-CPAP cells.Flow cytometry results showed that up-regulated NRG1 induced apoptosis of MDA-T32 and B-CPAP cells.Moreover,Western blotting results showed that high expression of NRG1 could promote the expression of Caspase-3 and Bax in MDA-T32 and B-CPAP cells,and inhibit the expression of Bcl-2.Conclusion:NRG1 could inhibit the proliferation of thyroid cancer cells and induce apoptosis through regulating the mitochondrial apoptosis pathway.

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2017年辽宁省重点研发计划指导计划项目(编号:2017225056);辽宁省博士科研启动基金(编号:201601417);2017年沈阳市科技计划项目(编号:17-230-9-52);2018年沈阳市科技计划项目(编号:18-014-4-75)
Last Update: 2018-11-30