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- W4361948556 abstract "<div>Abstract<p><b>Purpose:</b> Prostate cancer remains the second most frequent cause of tumor-related deaths in the Western world. Additional markers for the identification of prostate cancer development and progression are needed. Osteopontin (OPN), which activates matrix metalloproteinases (MMP), is considered a prognostic biomarker in several cancers. “In silico” and experimental approaches were used to determine whether OPN-mediated MMP activation may be a signal of prostate cancer progression.</p><p><b>Experimental Design:</b> Pearson correlation coefficients were computed for each <i>OPN/MMP</i> pair across seven publicly available prostate cancer gene expression data sets. Using Gene Set Enrichment Analysis, 101 cancer-related gene sets were analyzed for association with <i>OPN</i> and <i>MMP-9</i> expression. OPN, MMP-9, MMP-2 tissue inhibitor of metalloproteinase-1 plasma levels, and MMP gelatinase activity were measured by ELISA and zymography in 96 and 92 patients with prostate cancer and benign prostatic hyperplasia, respectively, and 125 age-matched healthy men.</p><p><b>Results:</b> Computational analyses identified a significant correlation only between <i>MMP-9</i> and <i>OPN,</i> and showed significant enrichment scores in “cell proliferation”, “genes constituting the phosphoinositide-3-kinase predictor”, “proliferation signature”, and “tumor metastasis” gene sets in association with both <i>OPN</i> and <i>MMP-9</i>. Plasma analyses revealed a significant increase in OPN and MMP-9 levels and activity in patients with prostate cancer in association with clinical variables (prostate-specific antigen >4 ng/mL and Gleason score >7). Significant correlation between OPN and MMP-9 levels were also observed. Mean plasma levels of OPN and MMP-9 decreased in patients with prostate cancer within 6 months after prostatectomy.</p><p><b>Conclusions</b>: The concordant computational and experimental data indicate that the extent of OPN pathway activation correlates with prostate cancer progression.</p></div>" @default.
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- W4361948556 date "2023-03-31" @default.
- W4361948556 modified "2023-09-26" @default.
- W4361948556 title "Data from Activation of the Osteopontin/Matrix Metalloproteinase-9 Pathway Correlates with Prostate Cancer Progression" @default.
- W4361948556 doi "https://doi.org/10.1158/1078-0432.c.6517251.v1" @default.
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