| A differential ligand-mediated response of green fluorescent protein-tagged androgen receptor in living prostate cancer and non-prostate cancer cell lines. | |
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MedLine Citation:
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PMID: 17312014 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Androgen has been shown to promote the proliferation of prostate cancer through the action of the androgen receptor (AR). Mutation (T877A) of the AR gene found in an androgen-sensitive prostate cancer cell line, LNCaP, has been postulated to be involved in hypersensitivity and loss of specificity for androgen. In the present study, trafficking of AR and AR (T877A) in living prostate and non-prostate cancer cell lines under high and low concentrations of androgen and antiandrogen was investigated by tagging green fluorescent protein (GFP) to the receptors. In the presence of a high concentration of androgen, AR-GFP localized in the nucleus by forming discrete clusters in all cell lines. AR (T877A)-GFP was also translocated to the nucleus in LNCaP and COS-1 cells by the addition of a high concentration of androgen. In contrast, in the presence of a low concentration of androgen, the translocation of AR-GFP and AR (T877A)-GFP was observed in LNCaP cells, but not in COS-1 cells. Upon the addition of antiandrogen, AR-GFP was translocated to the nucleus but did not form subnuclear foci in both COS-1 and LNCaP cells, whereas AR (T877A)-GFP in both cells was translocated to the nucleus with subnuclear foci. The present study demonstrates the differential response of nuclear trafficking of AR and its mutant in prostate cancer cell lines and COS cells, and the subcellular and subnuclear compartmentalization provide important information on the sensitivity of the AR mutation. |
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Authors:
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Hiroo Nakauchi; Ken-ichi Matsuda; Ikuo Ochiai; Akihiro Kawauchi; Yoichi Mizutani; Tsuneharu Miki; Mitsuhiro Kawata |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2007-02-20 |
Journal Detail:
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Title: The journal of histochemistry and cytochemistry : official journal of the Histochemistry Society Volume: 55 ISSN: 0022-1554 ISO Abbreviation: J. Histochem. Cytochem. Publication Date: 2007 Jun |
Date Detail:
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Created Date: 2007-05-21 Completed Date: 2007-06-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9815334 Medline TA: J Histochem Cytochem Country: United States |
Other Details:
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Languages: eng Pagination: 535-44 Citation Subset: IM |
Affiliation:
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Department of Urology, Kyoto Prefectural University of Medicine, Kamigyo-ku, Kyoto 602-8566, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Androgens
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pharmacology* Animals Blotting, Western COS Cells Cell Line, Tumor Cell Nucleus / metabolism Cercopithecus aethiops Cytoplasm / metabolism Dose-Response Relationship, Drug Green Fluorescent Proteins / genetics, metabolism* Humans Male Microscopy, Confocal Mutant Proteins / genetics, metabolism Mutation Prostatic Neoplasms / metabolism, pathology Protein Transport / drug effects Receptors, Androgen / genetics, metabolism* Recombinant Fusion Proteins / genetics, metabolism Time Factors Transfection |
| Chemical | |
Reg. No./Substance:
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0/Androgens; 0/Mutant Proteins; 0/Receptors, Androgen; 0/Recombinant Fusion Proteins; 147336-22-9/Green Fluorescent Proteins |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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