Overexpression of Glycosylphosphatidylinositol (GPI) Transamidase Subunits Phosphatidylinositol Glycan Class T and/or GPI Anchor Attachment 1 Induces Tumorigenesis and Contributes to Invasion in Human Breast Cancer

Abstract excerpt

Based on the oncogenic role of phosphatidylinositol glycan (PIG) class U in human tumors, we explored the role of two additional subunits of the glycosylphosphatidylinositol (GPI) transamidase complex in human breast cancer. We found that PIG class T (PIG-T) and GPI anchor attachment 1 (GPAA1) were overexpressed in breast cancer cell lines and primary tumors. Forced expression of PIG-T and GPAA1 transformed...

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