helper cell

helper cell
T cell with CD4 receptor that recognizes antigens on the surface of a virus-infected cell and secretes lymphokines that stimulate B cells and killer T cells; helper T cells are infected and killed by the AIDS virus
Syn: ↑helper T cell, ↑CD4 T cell, ↑CD4 cell
Hypernyms: ↑T cell, ↑T lymphocyte

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Helper cell — A type of T cell that participates in the immune response by recognizing foreign antigens and secreting substances called cytokines that activate T and B cells. Helper cells fall into two main classes: those that activate other T cells to achieve …   Medical dictionary

  • helper cell — noun see helper T cell …   New Collegiate Dictionary

  • helper cell — noun Physiology a T lymphocyte that influences or controls the differentiation or activity of other cells of the immune system. Compare with killer cell …   English new terms dictionary

  • helper cell — T cells that assist in stimulating B and T lymphocytes to develop into antibody producing plasma cells and killer T cells, respectively …   Glossary of Biotechnology

  • 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

  • helper cells — helper T cells differentiated T lymphocytes whose cooperation (help) is required for the production of antibody against most (T dependent) antigens. Activation of B lymphocytes (B cells) requires recognition of the antigenic determinant against… …   Medical dictionary

  • T-helper cell — T help·er cell ( )tē hel pər n HELPER T CELL …   Medical dictionary

  • T-helper cell — noun Date: 1980 helper T cell …   New Collegiate Dictionary

  • T helper cell — Immunol. See helper T cell. * * * …   Universalium

  • T helper cell — n. bai (mcr imv)imu helper T cell …   From formal English to slang

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