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|Title:||Ultrastructural localization of milk fat globule membrane antigens in human breast carcinomas.|
|Citation:||J PATHOL, 1990, 161 (2), pp. 161-166|
|Abstract:||The localization of milk fat globule membrane components has been assessed using post-fixation immunoelectron microscopy with three different antibodies for a group of breast carcinomas of different type and histological differentiation. For well differentiated carcinomas localization was in relation to the cell membrane, with polarization being evident in a proportion of cases. Moderately differentiated carcinomas showed a combined picture of cell membrane, vesicular, and intracytoplasmic luminal localization. The latter is a feature of infiltrating lobular carcinomas. Poorly differentiated carcinomas exhibited vesicular labelling throughout the cytoplasm, with no cell membrane localization. No labelling was seen over endoplasmic reticulum. It is proposed that carcinomas exhibit defects in intracellular transport of milk fat globule membrane components resulting in failure of expression at the cell surface and accumulation of vesicles within the cytoplasm, the extent of change relating to tumour differentiation.|
|Appears in Collections:||Published Articles, Dept. of Cancer Studies and Molecular Medicine|
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