Cited by 38Prostate Cancer Treatment and ResearchSperm and Testicular FunctionEstrogen and related hormone effects

Phosphorylation and activation of androgen receptor by Aurora-A.

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Shu, Shao-Kun, Liu, Qiyuan, Coppola, Domenico, Cheng, Jin Q.·2010·Journal of Biological Chemistry

Abstract

Aurora-A kinase is frequently overexpressed/activated in various types of human malignancy, including prostate cancer. In this study, we demonstrate elevated levels of Aurora-A in androgen-refractory LNCaP-RF but not androgen-sensitive LNCaP cells, which prompted us to examine whether Aurora-A regulates the androgen receptor (AR) and whether elevated Aurora-A is involved in androgen-independent cell growth. We show that ectopic expression of Aurora-A induces AR transactivation activity in the presence and absence of androgen. Aurora-A interacts with AR and phosphorylates AR at Thr(282) and Ser(293) in vitro and in vivo. Aurora-A induces AR transactivation activity in a phosphorylation-dependent manner. Ectopic expression of Aurora-A in LNCaP cells induces prostate-specific antigen expression and cell survival, whereas knockdown of Aurora-A sensitizes LNCaP-RF cells to apoptosis and cell growth arrest. These data indicate that AR is a substrate of Aurora-A and that elevated Aurora-A could contribute to androgen-independent cell growth by phosphorylation and activation of AR.

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  1. Yeh, S., Lin, H. K., Kang, H. Y., Thin, T. H., Lin, M. F., and Chang, C. (1999) Proc. Natl. Acad. Sci. U.S.A. 96, 5458 -5463
  2. Lin, H. K., Yeh, S., Kang, H. Y., and Chang, C. (2001) Proc. Natl. Acad. Sci.
  3. Chen, S., Xu, Y., Yuan, X., Bubley, G. J., and Balk, S. P. (2006) Proc. Natl. Acad. Sci. U.S.A. 103, 15969 -15974

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Authors
Shu, S.-K., Liu, Q., Coppola, D., & Cheng, J. Q.
Affiliations
Moffitt Cancer Center (US)
Corresponding author
Cheng, Jin Q.
Venue
Journal of Biological Chemistry
Publisher
Elsevier BV
Published
2010-10
Volume
285
Issue
43
Pages
33045-33054
ISSN
0021-9258 (ISSN-L)
OpenAlex
W2093863429
Cited by
38
References
51
Citations by year
2022: 1 · 2021: 1 · 2020: 1 · 2019: 1 · 2018: 1 · 2017: 5 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 7 · 2012: 6
FWCI
5.05
Type
journal article
Language
en
Status
Retracted
Open access
Locations
  • Journal of Biological Chemistry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institutes of Health (CA137041)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Prostate Cancer Treatment and Research
  • Health Sciences › Medicine › Reproductive Medicine › Sperm and Testicular Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Estrogen and related hormone effects
Keywords
AURKA, androgen receptor, receptor phosphorylation, prostate cancer, androgen-refractory prostate cancer, LNCaP cells, prostate-specific antigen, apoptosis, growth arrest, kinase substrates
MeSH terms
Androgens, Gene Expression Regulation, Humans, Male, Phosphorylation, Receptors, Androgen, Transcriptional Activation, Apoptosis, Protein Serine-Threonine Kinases, Prostate-Specific Antigen, Cell Line, Tumor, Gene Knockdown Techniques, Aurora Kinases

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