PMID- 27837634 OWN - NLM STAT- MEDLINE DCOM- 20170608 LR - 20220316 IS - 1107-0625 (Print) IS - 1107-0625 (Linking) VI - 21 IP - 5 DP - 2016 Sept-Oct TI - Elevated expression of matrix metalloproteinase-3 in human osteosarcoma and its association with tumor metastasis. PG - 1279-1286 AB - PURPOSE: Matrix metalloproteinase-3 (MMP-3) is one of the several MMPs that is associated with malignant tumors of breast, colon, cervix and lung, where its expression has been correlated with tumor invasion and metastasis. However, the role of MMP-3 in metastasis of osteosarcoma has not yet been explored. METHODS: MMP-3 expression in 15 primary and metastatic osteosarcomas with case-matched adjacent non-tumor tissue was assessed by immunohistochemistry and quantitative RT-PCR. Further, MMP-3 mRNA and protein levels were also determined in osteoblast and osteosarcoma cell lines. Additionally, migration and invasion assays were performed in MMP-3 knockdown cells. RESULTS: MMP-3 was expressed in 86.6% (13/15) of the osteosarcoma patients and its expression was significantly higher in metastatic tumors as compared to the primary osteosarcoma tumor tissues. Furthermore, osteosarcoma cell lines showed higher MMP-3 expression as compared to osteoblast cell lines. siRNA-mediated MMP-3 knockdown in osteosarcoma cell lines significantly inhibited their migration and invasion properties. CONCLUSION: Our results demonstrated that MMP-3 expression is deregulated in osteosarcomas and this potentially contributes to metastasis and might be a promising marker for the prognosis and therapy of metastatic osteosarcoma. FAU - Huang, Jie-Feng AU - Huang JF AD - Department of Orthopedics, The first affiliated hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province 310006, China. FAU - Du, Wen-Xi AU - Du WX FAU - Chen, Jun-Jie AU - Chen JJ LA - eng PT - Journal Article PL - Cyprus TA - J BUON JT - Journal of B.U.ON. : official journal of the Balkan Union of Oncology JID - 100883428 RN - 0 (Biomarkers, Tumor) RN - 0 (RNA, Messenger) RN - EC 3.4.24.17 (MMP3 protein, human) RN - EC 3.4.24.17 (Matrix Metalloproteinase 3) SB - IM MH - Adult MH - Biomarkers, Tumor/genetics/*metabolism MH - Bone Neoplasms/*enzymology/genetics/*pathology MH - Cell Line, Tumor MH - Cell Movement MH - Female MH - Gene Expression Regulation, Enzymologic MH - Gene Expression Regulation, Neoplastic MH - Gene Knockdown Techniques MH - Humans MH - Male MH - Matrix Metalloproteinase 3/genetics/*metabolism MH - Neoplasm Invasiveness MH - Osteosarcoma/*enzymology/genetics/*secondary MH - RNA Interference MH - RNA, Messenger/genetics MH - Signal Transduction MH - Transfection MH - Up-Regulation MH - Young Adult EDAT- 2016/11/13 06:00 MHDA- 2017/06/09 06:00 CRDT- 2016/11/13 06:00 PHST- 2016/11/13 06:00 [entrez] PHST- 2016/11/13 06:00 [pubmed] PHST- 2017/06/09 06:00 [medline] PST - ppublish SO - J BUON. 2016 Sept-Oct;21(5):1279-1286.