Cited by 12Cancer Cells and MetastasisTGF-β signaling in diseasesMechanisms of cancer metastasis

RAP80 regulates epithelial–mesenchymal transition related with metastasis and malignancy of cancer

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Park, Song Yi, Korm, Sovannarith, Chung, Hee Jin, Choi, Su jin, Jang, Jin‐Ju, Cho, Sunhee, Lim, Yong Taik, Kim, Hongtae +1 more·2016·Cancer Science

Abstract

Epithelial–mesenchymal transition (EMT) has been closely related with invasive and metastatic properties of cancer. Recently, the convergence of DNA damage response and EMT in cancer development has received a great amount of scientific attention. Here, we showed that EMT is induced by the downregulation of RAP 80, a well‐known regulator for DNA damage response. The knockdown of RAP 80 leads to EMT‐like morphological changes and the increase of tumor sphere formation in non‐adhesive culture. Mechanistically, RAP 80 controls a reciprocal regulatory axis of ZEB 1 (for EMT activation) and miR200c (for EMT inhibition). The downregulation of RAP 80 increases ZEB 1 protein and decreases miR200c expression to activate EMT signaling in the form of drastic inhibitions of E‐cadherin, p16 and p21 expression. Using in vivo metastasis analysis, RAP 80 knockdown cells are shown to dramatically metastasize into the lung and generate more malignant phenotype compared to controls. Interestingly, the expression level of RAP 80 was positively correlated with the survival rate in lung adenocarcinoma and breast cancer patients. These findings indicate that RAP 80 is a critical gatekeeper in impeding EMT‐induced metastasis and malignant phenotypes of cancer as well as preserving DNA integrity.

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  1. [27]Yin Z, Menendez D, Resnick MA, French JE, Janardhan KS, Jetten AM. RAP80 is critical in maintaining genomic stability and suppressing tumor development. Cancer Res 2012; 72: 5081– 6. PMC3482830 22896338

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Authors
Park, S. Y., Korm, S., Chung, H. J., Choi, S. J., Jang, J., Cho, S., Lim, Y. T., Kim, H., & Lee, J.
Affiliations
  • Chungnam National University (KR)
  • Sungkyunkwan University (KR)
Corresponding author
  • Kim, Hongtae
  • Lee, Joo‐Yong
Venue
Cancer Science
Publisher
Wiley
Published
2016-02-10
Volume
107
Issue
3
Pages
267-273
ISSN
  • 1347-9032 (ISSN-L)
  • 1349-7006
OpenAlex
W2227664873
Cited by
12
References
32
Citations by year
2025: 1 · 2022: 1 · 2021: 1 · 2020: 3 · 2019: 1 · 2017: 4 · 2016: 1
FWCI
1.08
Type
journal article
Language
en
Open access
Locations
  • Cancer Science (publishedVersion, cc-by-nc-nd)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • Scholarworks@UNIST (Ulsan National Institute of Science and Technology) (submittedVersion, cc-by-nc-nd)
Funders
National Research Foundation of Korea (NRF‐2012M3A9C6050087, 2013R1A6A9067028, 2013R1A1A2008576)
Topics
  • Health Sciences › Medicine › Oncology › Cancer Cells and Metastasis
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mechanisms of cancer metastasis
Keywords
RAP80, epithelial-mesenchymal transition, DNA damage response, metastasis, ZEB1, miR-200c, E-cadherin, p16, p21, lung adenocarcinoma, breast cancer, tumor sphere formation, DNA integrity, patient survival
MeSH terms
Zinc Finger E-box-Binding Homeobox 1, Adenocarcinoma of Lung, Adenocarcinoma, Animals, Breast Neoplasms, Carrier Proteins, DNA-Binding Proteins, Female, HeLa Cells, Humans, Lung Neoplasms, Male, Mice, Inbred BALB C, Mice, Nude, Neoplasm Transplantation, Nuclear Proteins, Transcription Factors, Homeodomain Proteins, Kaplan-Meier Estimate, Gene Knockdown Techniques, Histone Chaperones, Epithelial-Mesenchymal Transition

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