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miRNA Expression Analyses in Prostate Cancer Clinical Tissues
Published on: September 8, 2015
Proteoglycan expression in normal human prostate tissue and prostate cancer
Anastasia V Suhovskih1, Lyudmila A Mostovich, Igor S Kunin
1Institute of Molecular Biology and Biophysics SB RAMS, Timakova Street 2, Novosibirsk 630117, Russia.
ISRN Oncology
|May 22, 2013
Summary
Proteoglycans (PGs) show distinct expression patterns in normal versus prostate tumor tissues. These changes, particularly in decorin, lumican, syndecan-1, and glypican-1, may serve as valuable molecular markers for prostate cancer diagnosis and treatment.
Area of Science:
- Biochemistry
- Oncology
- Cell Biology
Background:
- Proteoglycans (PGs) are crucial for cell-cell and cell-matrix interactions in mammalian tissues.
- Understanding proteoglycan expression patterns in prostate cancer is essential for diagnosis and treatment.
Purpose of the Study:
- To investigate and compare the expression patterns of various cell surface and stromal proteoglycans in normal human prostate tissue versus prostate tumors.
- To identify potential molecular markers for prostate cancer based on proteoglycan expression profiles.
Main Methods:
- RT-PCR analysis was employed to determine gene expression levels.
- Immunostaining using core protein- and GAG-specific antibodies was performed to localize proteoglycans.
- Expression of glypican-1, perlecan, syndecan-1, aggrecan, versican, NG2, brevican, decorin, and lumican was analyzed.
Main Results:
- In normal prostate tissue, versican, decorin, and biglycan were predominant in the stroma, while syndecan-1 and glypican-1 were mainly in epithelial cells.
- Prostate tumors exhibited decreased decorin and lumican expression.
- Tumor stroma showed increased syndecan-1 and glypican-1 expression, with disappearance from tumor epithelial cells; aggrecan and NG2 were also detected in some tumors.
Conclusions:
- Complex alterations in proteoglycan expression occur in prostate tumors.
- Individual proteoglycan expression patterns in tumors could be valuable for personalized prostate cancer diagnosis and treatment strategies.
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