How Do You Spell EPITHELIAL MEMBRANE ANTIGEN?

1. Epithelial Membrane Antigen (EMA) refers to a protein complex found on the surface of certain type of cells known as epithelial cells. Epithelial cells form the linings and coverings of various organs, tissues, and body cavities in the human body.

   EMA is a glycoprotein, meaning it is composed of both protein and carbohydrate molecules. It is primarily located in the luminal or apical surface of epithelial cells, which is the side that faces the cavity or structure being lined or covered by the cells.

   The presence of EMA on the epithelial cell surface is significant because it serves as a marker or identifier for epithelial cells. This means that the presence or absence of EMA can help distinguish epithelial cells from other types of cells in various diagnostic procedures, such as immunohistochemistry or immunocytochemistry tests.

   EMA is often measured or detected in tumor biopsy samples or other pathological samples to help determine the origin of the cells and classify the type of tumor or cancer present. EMA is particularly useful in identifying the epithelial origin of certain cancers, such as carcinomas.

   In summary, epithelial membrane antigen (EMA) is a glycoprotein complex found on the surface of epithelial cells, which helps distinguish them from other cell types. Its detection or measurement is useful in diagnosing and classifying various tumors, especially carcinomas.

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