helper T cell

2 ENTRIES FOUND:

help·er T cell

noun \ˌhel-pər-ˈtē-\

Definition of HELPER T CELL

: a T cell that participates in an immune response by recognizing a foreign antigen and secreting lymphokines to activate T cell and B cell proliferation, that usually carries CD4 molecular markers on its cell surface, and that is reduced to 20 percent or less of normal numbers in AIDS—called also helper cell, helper lymphocyte, helper T lymphocyte; compare cytotoxic t cell, suppressor t cell

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