T-Cell Receptor Activation

Any process in which a specific pair of interactions is observed between a T cell and an antigen-presenting cell, where the interactions include those between the T cell receptor and the major histocompatibility complex and those between CD28 and B7 family members. This process is involved in anergy and specification of the immune response to a particular antigen. (NCI Thesaurus)

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A T-cell prolymphocytic leukemia characterized by the presence of small neoplastic prolymphocytes often with invisible nucleolus by light microscopy.

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A T-cell prolymphocytic leukemia characterized by the presence of neoplastic prolymphocytes with irregular or cerebriform nuclear outline.

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An increase in the number of all, or specific subsets of, T-cells by cell growth and cell division during an immune response…

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Chemokine receptors expressed by T helper cells help recruit cells to specific locations based on their chemoattractant ligands. The polarization of…