Stimulation of Breast Cancer Invasion and Metastasis by Synuclein {{gamma}}

Tumor Biology

Stimulation of Breast Cancer Invasion and Metastasis by Synuclein ${gamma}$ ¹

Tongli Jia, Yiliang E. Liu, Jingwen Liu and Y. Eric Shi²

Departments of Pediatrics [T. J., Y. E. L., Y. E. S] and Pathology [Y. E. S], Long Island Jewish Medical Center, The Long Island Campus for the Albert Einstein College of Medicine, New Hyde Park, New York 11040, and Palo Alto VA Health Care System, Palo Alto, California 94304 [J. L.]

We recently identified and cloned novel breast cancer-specificgene BCSG1 by direct differential cDNA sequencing. BCSG1 hasa great sequence homology with the Alzheimer’s disease-relatedneural protein synuclein (SNC); thus, it was also named SNC- ${gamma}$ .Overexpression of SNC- ${gamma}$ in breast cancer cells leads to a significantincrease in motility and invasiveness in vitro and a profoundaugmentation of metastasis in vivo. Our data suggest that thismember of the neural protein SNCs might have important functionsoutside the central nervous system and may play a role in breastcancer progression.

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