Journal
PROSTATE
Volume 73, Issue 7, Pages 763-769Publisher
WILEY-BLACKWELL
DOI: 10.1002/pros.22620
Keywords
alpha-methylacyl-CoA racemase; cancer biomarkers; prostate cancer diagnosis
Categories
Funding
- FCT [PTDC/SAUMET/113415/2009]
- Fundo Comunitario Europeu FEDER
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/61027/2009]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/61027/2009] Funding Source: FCT
Ask authors/readers for more resources
BACKGROUND Monocarboxylate transporter 2 (MCT2) is a transmembrane protein involved in the transport of monocarboxylates such as pyruvate and lactate. In a previous study we described overexpression of MCT2 in prostate carcinoma raising the hypothesis of using MCT2 as a possible biomarker in prostate cancer. With the present study we aimed to compare the pattern of expression of MCT2 and alpha-methylacyl-CoA racemase (AMACR), in prostate carcinoma, PIN lesions, non-neoplastic prostate tissue, and normal prostate and compare their sensitivity and specificity. Also, we wanted to evaluate the value of using MCT2 in combination with AMACR and the negative markers 34E12 or p63 to detect prostate cancer. METHODS A total of 349 cases, including prostate carcinoma, non-neoplastic prostate tissue and PIN lesions, from radical prostatectomies were examined by immunohistochemistry for AMACR, MCT2, p63, and 34E12, using tissue microarrays (TMAs). Normal prostate from radical cystoprostatectomy was also studied. RESULTS Our study revealed that MCT2, similarly to AMACR, was consistently expressed in prostate cancer regardless of the Gleason score. In combination with AMACR and p63 or 34E12, MCT2 helped to improve the diagnosis of prostate carcinoma. Also, overexpression of MCT2 as well as AMACR in PIN lesions may indicate the involvement of these two proteins in prostate cancer initiation. CONCLUSIONS We provided evidence for the presence of MCT2 in prostate cancer, selectively labeling malignant glands. Importantly, assessment of MCT2 together with AMACR, along with the negative markers, highly increases the accuracy in prostate cancer diagnosis. Prostate 73: 763769, 2013. (c) 2012 Wiley Periodicals, Inc.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available