T-cell anergy
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Anergy — A state of immune unresponsiveness. Induced when the T cell s antigen receptor is stimulated, effectively freezing T cell responses pending a second signal from the antigen presenting cell. The delivery of the second signal by the antigen… … Medical dictionary
Clonal anergy — For the use of anergy in thermodynamics, see Exergy. Anergy is a term in immunobiology that describes a lack of reaction by the body s defense mechanisms to foreign substances, and consists of a direct induction of peripheral lymphocyte tolerance … Wikipedia
B cell — B cells are lymphocytes that play a large role in the humoral immune response (as opposed to the cell mediated immune response, which is governed by T cells). The principal functions of B cells are to make antibodies against antigens, perform the … Wikipedia
T helper cell — T helper cells (also known as effector T cells or Th cells) are a sub group of lymphocytes (a type of white blood cell or leukocyte) that plays an important role in establishing and maximizing the capabilities of the immune system. These cells… … Wikipedia
T cell — T cells belong to a group of white blood cells known as lymphocytes, and play a central role in cell mediated immunity. They can be distinguished from other lymphocyte types, such as B cells and natural killer cells by the presence of a special… … Wikipedia
Natural killer cell — Latin lymphocytus K Code TH H2.00.04.1.02006 Natural killer cells (or NK cells) are a type of cytotoxic lymphocyte that constitute a major component of the innate immune system. NK cells play a major role in the rejection of … Wikipedia
White blood cell — White Blood Cells redirects here. For the album by The White Stripes, see White Blood Cells (album). White blood cell A scanning electron microscope image of normal circulating human blood. In addition to the irregularly shaped leukocytes, both… … Wikipedia
Cytotoxic T cell — Antigen presentation stimulates T cells to become either cytotoxic CD8+ cells or helper CD4+ cells. A cytotoxic T cell (also known as TC, Cytotoxic T Lymphocyte, CTL, T Killer cell, cytolytic T cell, CD8+ T cells or killer T cell) belongs to a… … Wikipedia
Natural Killer T cell — Natural killer T (NKT) cells are a heterogeneous group of T cells that share properties of both T cells and natural killer (NK) cells. Many of these cells recognize the non polymorphic CD1d molecule, an antigen presenting molecule that binds self … Wikipedia
Memory B cell — For other uses, see Memory cell (disambiguation). B lymphocytes are the cells of the immune system that make antibodies to invading pathogens like viruses. They form memory cells that remember the same pathogen for faster antibody production in… … Wikipedia
