Thymic epithelial cell

Type of specialized cells

Thymic epithelial cells (TECs) are specialized cells with high degree of anatomic, phenotypic and functional heterogeneity that are located in the outer layer (epithelium) of the thymic stroma. The thymus, as a primary lymphoid organ, mediates T cell development and maturation. The thymic microenvironment is established by TEC network filled with thymocytes in different developing stages. TECs and thymocytes are the most important components in the thymus, that are necessary for production of functionally competent T lymphocytes and self tolerance. Dysfunction of TECs causes several immunodeficiencies and autoimmune diseases.

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