Journal
PROSTATE
Volume 66, Issue 12, Pages 1311-1318Publisher
WILEY-LISS
DOI: 10.1002/pros.20464
Keywords
monocyte chemotactic protein-1; prostate cancer; cell proliferation; invasion
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BACKGROUND. Monocyte chemotactic protein-1 (MCP-1) plays a key role in the recruitment and activation of monocytes during inflammation. Increased MCP-1 serum levels in patients with various cancers were correlated with advanced stage. Here, we evaluated the role of MCP-1 on prostate cancer (CaP) cell proliferation and invasion. METHODS. Expression of MCP-1 in tissue specimens was analyzed by immunohistochemical staining. MCP-1 production was determined by ELISA in conditioned media collected from primary prostate epithelia (PrEC), LNCaP, C4-2B, PC3 cells, and hFOB. Cell proliferation and invasion were assayed by MTS assay and invasion chambers. RESULTS. All CaP cells, as well as hFOB, produced high amount of MCPA compared to PrEC cells. MCP-1 expression levels were associated with advanced pathologic stage. MCP-1 induced proliferation and invasion of CaP cells and this was abolished partially either by CCR2 antagonist or PI3 Kinase inhibitor. CONCLUSION. MCP-1 acts as a paracrine and autocrine factor for CaP growth and invasion.
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