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Supplementary Materials and Methods from A Role for TAZ in Migration, Invasion, and Tumorigenesis of Breast Cancer Cells

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posted on 2023-03-30, 18:21 authored by Siew Wee Chan, Chun Jye Lim, Ke Guo, Chee Peng Ng, Ian Lee, Walter Hunziker, Qi Zeng, Wanjin Hong
Supplementary Materials and Methods from A Role for TAZ in Migration, Invasion, and Tumorigenesis of Breast Cancer Cells

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ARTICLE ABSTRACT

TAZ (WWTR1), identified as a 14-3-3 binding protein with a PDZ binding motif, modulates mesenchymal stem cell differentiation. We now show that TAZ plays a critical role in the migration, invasion, and tumorigenesis of breast cancer cells. TAZ is conspicuously expressed in human breast cancer cell lines in which its expression levels generally correlate with the invasiveness of cancer cells. Overexpression of TAZ in low-expressing MCF10A cells causes morphologic changes characteristic of cell transformation and promotes cell migration and invasion. Conversely, RNA interference–mediated knockdown of TAZ expression in MCF7 and Hs578T cells reduces cell migration and invasion. TAZ knockdown in MCF7 cells also retards anchorage-independent growth in soft agar and tumorigenesis in nude mice. Significantly, TAZ is overexpressed in ∼20% of breast cancer samples. These results indicate that TAZ plays a role in the migration, invasion, and tumorigenesis of breast cancer cells and thus presents a novel target for the detection and treatment of breast cancer. [Cancer Res 2008;68(8):2592–8]

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