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helper cell

DEFINITIONS OF: helper cell

1

n 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

Synonyms:
CD4 T cell, CD4 cell, helper T cell
Type of:
T cell, T lymphocyte
a small lymphocyte developed in the thymus; it orchestrates the immune system's response to infected or malignant cells
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