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细胞技术

Cell Aggregation Assays

2025-03-18 细胞技术 加入收藏
Invasion of carcinoma cells is the result of a disequilibrium between invasion p

Invasion of carcinoma cells is the result of a disequilibrium between invasion promoter and invasion suppressor gene products (1 ). The E-cadherin/catenin complex is the most potent invasion suppressor at the cell membrane of epithelioid cells (2 ).This complex consists of E-cadherin, a transmembrane glycoprotein of 120 kDa, which is linked to the actin cytoskeleton via the catenins (3 ). Downregulation of the complex is a common feature in invasive carcinoma cells, and has been recognized at several levels, ranging from genomic mutations to functional deficiencies of an apparently intact complex (4 ). Cell aggregation assays have been set up to test the functionality of the complex in epithelioid tumor cells. Functional integrity of the complex is a prerequisite for cell-cell adhesion between epithelial cells, and measuring cell aggregation in vitro has thus become another elegant tool to study differences between invasive and noninvasive cell types.

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