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TCTP is an androgen-regulated gene implicated in prostate cancer

TCTP has been implicated in a plethora of important cellular processes related to cell growth, cell cycle progression, malignant transformation and inhibition of apoptosis. In addition to these intracellular functions, TCTP has extracellular functions and plays an important role in immune cells. TCT...

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Published in:PloS one 2013-07, Vol.8 (7), p.e69398
Main Authors: Kaarbø, Mari, Storm, Margrethe L, Qu, Su, Wæhre, Håkon, Risberg, Bjørn, Danielsen, Håvard E, Saatcioglu, Fahri
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container_issue 7
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container_title PloS one
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Saatcioglu, Fahri
description TCTP has been implicated in a plethora of important cellular processes related to cell growth, cell cycle progression, malignant transformation and inhibition of apoptosis. In addition to these intracellular functions, TCTP has extracellular functions and plays an important role in immune cells. TCTP expression was previously shown to be deregulated in prostate cancer, but its function in prostate cancer cells is largely unknown. Here we show that TCTP expression is regulated by androgens in LNCaP prostate cancer cells in vitro as well as human prostate cancer xenografts in vivo. Knockdown of TCTP reduced colony formation and increased apoptosis in LNCaP cells, implicating it as an important factor for prostate cancer cell growth. Global gene expression profiling in TCTP knockdown LNCaP cells showed that several interferon regulated genes are regulated by TCTP, suggesting that it may have a role in regulating immune function in prostate cancer. In addition, recombinant TCTP treatment increased colony formation in LNCaP cells suggesting that secreted TCTP may function as a proliferative factor in prostate cancer. These results suggest that TCTP may have a role in prostate cancer development.
doi_str_mv 10.1371/journal.pone.0069398
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These results suggest that TCTP may have a role in prostate cancer development.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>23894469</pmid><doi>10.1371/journal.pone.0069398</doi><tpages>e69398</tpages><oa>free_for_read</oa></addata></record>
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subjects Androgens
Androgens - pharmacology
Animals
Apoptosis
Apoptosis - drug effects
Apoptosis - genetics
B cells
Biology
Biomarkers, Tumor - deficiency
Biomarkers, Tumor - genetics
Biomarkers, Tumor - pharmacology
Cancer
Cancer genetics
Cell cycle
Cell growth
Cell Line, Tumor
Cell Proliferation - drug effects
Cell Survival - drug effects
Cell Survival - genetics
Cell Transformation, Neoplastic
Colonies
Deregulation
Development and progression
Gene expression
Gene Expression Regulation, Neoplastic - drug effects
Gene Knockdown Techniques
Genes
Genetic transformation
Humans
Immune response
Immune system
Interferon
Kinases
Male
Medicine
Mice
Neoplastic Stem Cells - drug effects
Neoplastic Stem Cells - pathology
Prostate
Prostate cancer
Prostatic Neoplasms - genetics
Prostatic Neoplasms - pathology
Recombinant Proteins - genetics
Recombinant Proteins - metabolism
Recombinant Proteins - pharmacology
Rodents
Studies
Transformation
Tumor Protein, Translationally-Controlled 1
Xenografts
title TCTP is an androgen-regulated gene implicated in prostate cancer
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