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HOXC9 Induces Phenotypic Switching between Proliferation and Invasion in Breast Cancer Cells.

Authors
 Ho Hur  ;  Ji-Yeon Lee  ;  Seoyeon Yang  ;  Jie Min Kim  ;  Anna E. Park  ;  Myoung Hee Kim 
Citation
 JOURNAL OF CANCER, Vol.7(7) : 768-773, 2016 
Journal Title
JOURNAL OF CANCER
Issue Date
2016
Keywords
HOXC9 ; breast cancer ; invasion ; metastasis ; proliferation
Abstract
HOX genes encode a family of transcriptional regulators that are involved in pattern formation and organogenesis during embryo development. In addition, these genes play important roles in adult tissues and some of the dysregulated HOX genes are associated with cancer development and metastasis. Like many other HOX genes, HOXC9 is aberrantly expressed in certain breast cancer cell lines and tissues; however, its specific functions in breast cancer progression were not investigated. In the present study, we demonstrated that HOXC9 overexpression in breast cancer cell lines such as MDA-MB-231 and MCF7 increased the invasiveness but reduced the proliferation of cells, resembling a phenotype switch from a proliferative to an invasive state. Furthermore, the reciprocal result was detected in MCF7 and BT474 cells when the expression level of HOXC9 was reduced with siRNA. The clinical impact of HOXC9 in breast cancer was interpreted from the survival analysis data, in which high HOXC9 expression led to considerably poorer disease-free survival and distant metastasis-free survival, especially in lymph node-positive patients. Together, the prognostic relevance of HOXC9 and the HOXC9-derived phenotypic switch between proliferative and invasive states in the breast cancer cell lines suggest that HOXC9 could be a prognostic marker in breast cancer patients with lymph node metastasis and a target for therapeutic intervention in malignant breast cancer.
Files in This Item:
T201601157.pdf Download
DOI
10.7150/jca.13894
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Anatomy (해부학교실) > 1. Journal Papers
Yonsei Authors
Kim, Myoung Hee(김명희) ORCID logo https://orcid.org/0000-0001-5652-1452
Lee, Ji Yeon(이지연) ORCID logo https://orcid.org/0000-0002-0670-3095
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/146714
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