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Evaluation of tissue PCA3 expression in prostate cancer by RNA in situ hybridization- a correlative study with urine PCA3 and TMPRSS2-ERG
被引:26
|作者:
Warrick, Joshua I.
[1
]
Tomlins, Scott A.
[1
,2
,3
,4
]
Carskadon, Shannon L.
[1
,2
]
Young, Allison M.
[1
]
Siddiqui, Javed
[1
,2
]
Wei, John T.
[4
]
Chinnaiyan, Arul M.
[1
,2
,3
,4
,5
]
Kunju, Lakshmi P.
[1
,2
,3
]
Palanisamy, Nallasivam
[1
,2
,3
]
机构:
[1] Univ Michigan, Sch Med, Dept Pathol, Ann Arbor, MI 48104 USA
[2] Univ Michigan, Sch Med, Michigan Ctr Translat Pathol, Ann Arbor, MI USA
[3] Univ Michigan, Sch Med, Ctr Comprehens Canc, Ann Arbor, MI USA
[4] Univ Michigan, Sch Med, Dept Urol, Ann Arbor, MI USA
[5] Univ Michigan, Sch Med, Howard Hughes Med Inst, Ann Arbor, MI 48109 USA
基金:
美国国家卫生研究院;
关键词:
PCA3;
prostate cancer;
RNA in situ hybridization;
ANTIBODY-BASED DETECTION;
ETS GENE FUSIONS;
INTRAEPITHELIAL NEOPLASIA;
ANTIGEN;
REARRANGEMENT STATUS;
TMPRSS2/ERG;
CARCINOMA;
DD3;
D O I:
10.1038/modpathol.2013.169
中图分类号:
R36 [病理学];
学科分类号:
100104 ;
摘要:
PCA3 is a prostate-specific non-coding RNA, with utility as a urine-based early detection biomarker. Here, we report the evaluation of tissue PCA3 expression by RNA in situ hybridization in a cohort of 41 mapped prostatectomy specimens. We compared tissue PCA3 expression with tissue level ERG expression and matched pre-prostatectomy urine PCA3 and TMPRSS2-ERG levels. Across 136 slides containing 138 foci of prostate cancer, PCA3 was expressed in 55% of cancer foci and 71% of high-grade prostatic intraepithelial neoplasia foci. Overall, the specificity of tissue PCA3 was >90% for prostate cancer and high-grade prostatic intraepithelial neoplasia combined. Tissue PCA3 cancer expression was not significantly associated with urine PCA3 expression. PCA3 and ERG positivity in cancer foci was positively associated (P<0.01). We report the first comprehensive assessment of PCA3 expression in prostatectomy specimens, and find limited correlation between tissue PCA3 and matched urine in prostate cancer.
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页码:609 / 620
页数:12
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