| 释义 |
helper cell
Thesaurus| Noun | 1. | 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 virusCD4 cell, CD4 T cell, helper T cellT cell, T lymphocyte - a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells |
TranslationsEncyclopediaSeecellhelper cell
helper cellA type of T lymphocyte whose surface is marked by CD4 receptors; it is involved in both cell-mediated and antibody-mediated immune responses. It secretes cytokines that stimulate the activity of B cells and other T cells and binds with class II histocompatibility antigens, which are processed by macrophages and other antigen-presenting cells. Synonym: helper T cell See: antigen processing; T cell; cell-mediated immunitySee also: cellLegalSeeCellhelper cell
Related to helper cell: Effector T cellsSynonyms for helper cellnoun 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 cellsSynonyms- CD4 cell
- CD4 T cell
- helper T cell
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