Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population

Background. Levels of the protein kinase aPKC have been previously correlated with prostate cancer prognosis in a British cohort. However, prostate cancer incidence and progression rates, as well as genetic changes in this disease, show strong ethnic variance, particularly in Asian populations. Obje...

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Main Authors: Anthony S. Perry, Bungo Furusato, Raymond B. Nagle, Sourav Ghosh
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Prostate Cancer
Online Access:http://dx.doi.org/10.1155/2014/481697
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author Anthony S. Perry
Bungo Furusato
Raymond B. Nagle
Sourav Ghosh
author_facet Anthony S. Perry
Bungo Furusato
Raymond B. Nagle
Sourav Ghosh
author_sort Anthony S. Perry
collection DOAJ
description Background. Levels of the protein kinase aPKC have been previously correlated with prostate cancer prognosis in a British cohort. However, prostate cancer incidence and progression rates, as well as genetic changes in this disease, show strong ethnic variance, particularly in Asian populations. Objective. The aim of this study was to validate association of aPKC expression with prostatic adenocarcinoma stages in a Japanese cohort. Methods. Tissue microarrays consisting of 142 malignant prostate cancer cases and 21 benign prostate tissues were subject to immunohistological staining for aPKC. aPKC staining intensity was scored by three independent pathologists and categorized as absent (0), dim (1+), intermediate (2+), and bright (3+). aPKC staining intensities were correlated with Gleason score and tumor stage. Results. Increased aPKC staining was observed in malignant prostate cancer, in comparison to benign tissue. Additionally, aPKC staining levels correlated with Gleason score and tumor stage. Our results extend the association of aPKC with prostate cancer to a Japanese population and establish the suitability of aPKC as a universal prostate cancer biomarker that performs consistently across ethnicities.
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spelling doaj-art-1a68bd2394a94c71ab22a6a5533597952025-02-03T01:00:26ZengWileyProstate Cancer2090-31112090-312X2014-01-01201410.1155/2014/481697481697Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese PopulationAnthony S. Perry0Bungo Furusato1Raymond B. Nagle2Sourav Ghosh3Department of Pathology, Banner MD Anderson Cancer Center, Gilbert, AZ 85234, USADepartment of Pathology, Jikei University School of Medicine, Tokyo 105-8461, JapanDepartment of Pathology, The University of Arizona and Arizona Cancer Center, Tucson, AZ 85724-5044, USADepartment of Cellular & Molecular Medicine, The University of Arizona and Arizona Cancer Center, Tucson, AZ 85724-5044, USABackground. Levels of the protein kinase aPKC have been previously correlated with prostate cancer prognosis in a British cohort. However, prostate cancer incidence and progression rates, as well as genetic changes in this disease, show strong ethnic variance, particularly in Asian populations. Objective. The aim of this study was to validate association of aPKC expression with prostatic adenocarcinoma stages in a Japanese cohort. Methods. Tissue microarrays consisting of 142 malignant prostate cancer cases and 21 benign prostate tissues were subject to immunohistological staining for aPKC. aPKC staining intensity was scored by three independent pathologists and categorized as absent (0), dim (1+), intermediate (2+), and bright (3+). aPKC staining intensities were correlated with Gleason score and tumor stage. Results. Increased aPKC staining was observed in malignant prostate cancer, in comparison to benign tissue. Additionally, aPKC staining levels correlated with Gleason score and tumor stage. Our results extend the association of aPKC with prostate cancer to a Japanese population and establish the suitability of aPKC as a universal prostate cancer biomarker that performs consistently across ethnicities.http://dx.doi.org/10.1155/2014/481697
spellingShingle Anthony S. Perry
Bungo Furusato
Raymond B. Nagle
Sourav Ghosh
Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
Prostate Cancer
title Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
title_full Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
title_fullStr Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
title_full_unstemmed Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
title_short Increased aPKC Expression Correlates with Prostatic Adenocarcinoma Gleason Score and Tumor Stage in the Japanese Population
title_sort increased apkc expression correlates with prostatic adenocarcinoma gleason score and tumor stage in the japanese population
url http://dx.doi.org/10.1155/2014/481697
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