期刊
JOURNAL OF MOLECULAR DIAGNOSTICS
卷 16, 期 6, 页码 615-626出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jmoldx.2014.06.009
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资金
- NIH/National Cancer Institute [5P30CA030199]
- International Prostate Cancer Foundation
Prostate cancer is one of the leading causes of mortality among US males. There is an urgent unmet need to develop sensitive and specific biomarkers for the early detection of prostate cancer to reduce over-treatment and accompanying morbidity. We identified a group of differentially expressed long noncoding RNAs in prostate cancer cell lines and patient samples and further characterized six Long noncoding RNAs (AK024556, XLOC_007697, LOC100287482, XLOC_005327, XLOC_008559, and XLOC_009911) in prostatic adenocarcinoma tissue samples (Gleason score >6.0) and compared them with matched normal (healthy) tissues. Interestingly, these markers were also successfully detected in patient urine samples and were found to be up-regulated when compared with normal (healthy) urine. AK024556 (SPRY4-IT1) was highly up-regulated in human prostate cancer cell tine PC3 but not in LNCaP, and siRNA knockdown of SPRY4-IT1 in PC3 cells inhibited cell proliferation and invasion and increased cell apoptosis. Chromogenic in situ hybridization assay was developed to detect long noncoding RNAs in primary prostatic adenocarcinoma tissue samples, paving the way for clinical diagnostics. We believe that these results will set the stage for more extensive studies to develop novel Long noncoding RNA-based diagnostic assays for early prostate cancer detection and will help to distinguish benign prostate cancer from precancerous lesions.
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