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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVIII | Pages 38 - 38
1 Sep 2012
Du WW Yang B Seth A Yee A
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Purpose

Versican is a member of the large aggregating chondroitin sulfate proteoglycan family. Structurally, it is made up of an N-terminal G1 domain, a glycosamingoglycan attachment region, and a C-terminus containing a selectin-like (G3) domain. Versican is highly expressed in the interstitial tissues at the invasive margins of breast carcinoma and predictive of relapse and overall survival. The purpose of the study to investigate the role of of versican G3 domain in breast cancer bone metastasis.

Method

Mouse mammary tumor cell lines 66c14, 4T07 and 4T1, and human breast cancer cell lines MT-1, MDA-MB-468 and MDA-MB-231 were stably transfected with versican G3. Effects of expression of versican G3 on cell proliferation, migration, invasion, cell cycle progression, and EGFR signaling were observed. The effects of G3 on cell viability in the conditional media of serum free, apoptotic agent C2-ceramide, and chemotherapeutic agents, including Docetaxel, Doxorubicin, Epirubicin were investigated. Colony formation assay and mammosphere formation assay were performed. A syngeneic orthotopic animal model was used to do the in vivo study.