ArticlePathology oncology research : POR2008
Expression of p21(waf1/cip1), p27 (kip1), p63 and androgen receptor in low and high Gleason score prostate cancer.
Article in Pathology oncology research : POR, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
5 citing papers in PubMed, 12 citations in OpenAlex.
- P21 and p27 Immunoexpression in Upper Urinary Tract Urothelial Carcinomas.Pathology oncology research : POR · 2016Article
- Changes of protein expression in prostate cancer having lost its androgen sensitivity.International urology and nephrology · 2015Article
- Zoledronic acid influences growth, migration and invasive activity of prostate cancer cells in vitro.Prostate cancer and prostatic diseases · 2012Article
- Coexpression of human somatostatin receptor-2 (SSTR2) and SSTR3 modulates antiproliferative signaling and apoptosis.Journal of molecular signaling · 2012Article
- The AR dependent cell cycle: mechanisms and cancer relevance.Molecular and cellular endocrinology · 2012Review
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The aim of this study was to investigate the expression of p21(waf1/cip1), p27(kip1), p63 and androgen receptor proteins in relation to serum prostate specific antigen levels in low and high Gleason score prostate cancers. Biopsies of patients suffering from prostate adenocarcinoma of low (3 + 3 to 3 + 4) and high (5 + 4 to 5 + 5) Gleason scores (13 cases each group) were immunostained for positive regulators of cell cycle control (p21(waf1/cip1) and p27(kip1)), and essential markers of normal prostate gland ontogeny (p63) and growth (androgen receptor) to find differentially expressed markers of malignant progression. Serum prostate specific antigen levels were also monitored at the time of biopsy and following anti-androgen therapy. All cases except one in each group were androgen receptor positive. P63 and p21(waf1/cip1) proteins detected in normal basal cell nuclei were lost in all but one studied tumors respectively. P27(kip1) protein, however, was detected in all low Gleason score prostate cancers, but it was found in only 7/13 high score cases. Prostate specific antigen levels, either pre- or post-treatment, did not show strict correlation with the p27(kip1) results. The low to high grade dedifferentiation of prostate adenocarcinoma is accompanied with the down-regulation of p27(kip1) protein, which may be an important molecular sign of the lost cell cycle control.
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