Silencing of SOX12 by shRNA suppresses migration, invasion and proliferation of breast cancer cells

Author:

Ding Hanzhi1,Quan Hong1,Yan Weiguo1,Han Jing1

Affiliation:

1. Department of Breast Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai 200120, China

Abstract

Sex determining region Y-box protein 12 (SOX12) is essential for embryonic development and cell-fate determination. The role of SOX12 in tumorigenesis of breast cancer is not well-understood. Here, we found that SOX12 mRNA expression was up-regulated in human breast cancer tissues. To clarify the roles of SOX12 in breast cancer, we used lentiviral shRNAs to suppress its expression in two breast cancer cells with relatively higher expression of SOX12 (BT474 and MCF-7). Our findings strongly suggested that SOX12 was critical for cell migration and invasion of breast cancer cells. We found that silencing of SOX12 significantly decreased the mRNA and protein levels of MMP9 and Twist, while notably increased E-cadherin. Moreover, SOX12 knockdown significantly inhibited the proliferation of breast cancer cells in vitro and the growth of xenograft tumours in vivo. Flow cytometry analysis revealed that breast cancer cells with SOX12 knockdown showed cell cycle arrest and decreased mRNA and protein levels of proliferating cell nuclear antigen (PCNA), CDK2 and Cyclin D1. Taken together, SOX12 plays an important role in growth inhibition through cell-cycle arrest, as well as migration and invasion of breast cancer cells.

Publisher

Portland Press Ltd.

Subject

Cell Biology,Molecular Biology,Biochemistry,Biophysics

Reference26 articles.

1. Breast cancer statistics and markers;Donepudi;J. Cancer Res. Ther.,2014

2. Confounding effects in “A six-gene signature predicting breast cancer lung metastasis”;Culhane;Cancer Res,2009

3. Molecular basis of metastasis;Chiang;N. Engl. J. Med.,2008

4. Control of cell fate and differentiation by Sry-related high-mobility-group box (Sox) transcription factors;Lefebvre;Int. J. Biochem. Cell Biol.,2007

5. The SOX family of genes in cancer development: biological relevance and opportunities for therapy;Castillo;Exp. Opin. Ther. Targets,2012

Cited by 30 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3