%ما هو (من)٪ 1 - تعريف
TYPE OF IMMUNE CELL
Helper T-cell; CD4 T-cell; Helper t cell; T-helper lymphocyte; T-helper cells; T4 cell; T helper cells; Helper T cell; T-helper cell; CD4 cell; CD4 helper T cells; CD4 helper T cell; CD4 helper T-lymphocyte; Helper T cells; Th2 cell; Th2; Effector T cells; CD4+ T lymphocytes; T4 cells; CD4+ T cell; Cd4-positive t-lymphocytes; T-lymphocytes, helper-inducer; Cd4+ t cells; T helper; T-helper; Th1 cell; CD4+ lymphocytes; CD4+ T cells; Th cell; Helper cell; TH2-cells; T helper lymphocytes; Helper t cells; Thelper; Thelpers; Cd4 t cell; Type 1 T-cell; T CD4; Th2-cells; Th2 cells; Type 2 cytokine; Type II cytokine; CD4+ cells; T-Helper cells; CD4+ helper cells; Helper T lympocyte; Inflammatory T cell; Helper T Cells; Lymphocyte activation; Helper T-lymphocyte; CD4+ T-cells; Th1 response; Th1/Th2; Helper T-Cells; Th cells; T h cell; T h cells; T Helper cell; CD4(+) T cell; T helper 2 cell; Th1 cells; T-CD4; CD4+ lymphocyte
!["cytotoxic" CD8+ cells]] and "helper" CD4+ cells respectively .](https://commons.wikimedia.org/wiki/Special:FilePath/Antigen presentation.svg?width=200 "\"cytotoxic\" CD8+ cells]] and \"helper\" CD4+ cells respectively .")
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.
T helper cell
The T helper cells (Th cells), also known as CD4+ cells or CD4-positive cells, are a type of T cell that play an important role in the adaptive immune system. They aid the activity of other immune cells by releasing cytokines.
Follicular B helper T cells
SUBSET OF CD4+ T LYMPHOCYTES, FOUND IN SECONDARY LYMPHOID ORGANS
ThF; Follicular helper T cells; Follicular B Helper T cells; Follicular helper T cell
Follicular helper T cells (also known as follicular B helper T cells and abbreviated as TFH), are antigen-experienced CD4+ T cells found in the periphery within B cell follicles of secondary lymphoid organs such as lymph nodes, spleen and Peyer's patches, and are identified by their constitutive expression of the B cell follicle homing receptor CXCR5. Upon cellular interaction and cross-signaling with their cognate follicular (Fo B) B cells, TFH cells trigger the formation and maintenance of germinal centers through the expression of CD40 ligand (CD40L) and the secretion of IL-21 and IL-4.
ويكيبيديا
T helper cell
The T helper cells (Th cells), also known as CD4+ cells or CD4-positive cells, are a type of T cell that play an important role in the adaptive immune system. They aid the activity of other immune cells by releasing cytokines. They are considered essential in B cell antibody class switching, breaking cross-tolerance in dendritic cells, in the activation and growth of cytotoxic T cells, and in maximizing bactericidal activity of phagocytes such as macrophages and neutrophils. CD4+ cells are mature Th cells that express the surface protein CD4. Genetic variation in regulatory elements expressed by CD4+ cells determines susceptibility to a broad class of autoimmune diseases.
