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  2. ZAP70 - Wikipedia

    en.wikipedia.org/wiki/ZAP70

    Due to its role in lymphocyte signaling, ZAP-70 has been associated with several diseases affecting lymphocytes. ZAP-70 expression is a significant indicator of the survival of lymphocytes and has been notably associated with chronic lymphocytic leukemia (CLL). [11] CLL is a cancer that develops from overproduction of B cells in the bone marrow.

  3. CD4+/CD8+ ratio - Wikipedia

    en.wikipedia.org/wiki/CD4+/CD8+_ratio

    In COVID-19 B cell, natural killer cell, and total lymphocyte counts decline, but both CD4 + and CD8 + cells decline to a far greater extent. [12] Low CD4 + predicted greater likelihood of intensive care unit admission, and CD4 + cell count was the only parameter that predicted length of time for viral RNA clearance.

  4. Natural killer T cell - Wikipedia

    en.wikipedia.org/wiki/Natural_killer_T_cell

    The term "NK T cells" was first used in mice to define a subset of T cells that expressed the natural killer (NK) cell-associated marker NK1.1 (CD161). It is now generally accepted that the term "NKT cells" refers to CD1d-restricted T cells , present in mice and humans, some of which coexpress a heavily biased, semi-invariant T-cell receptor ...

  5. Naive T cell - Wikipedia

    en.wikipedia.org/wiki/Naive_T_cell

    For instance, some non-naive T cells express surface markers similar to naive T cells (Tscm, stem cell memory T cells; [4] Tmp, memory T cells with a naive phenotype [5]), some antigen-naive T cells have lost their naive phenotype, [6] and some T cells are incorporated within the naive T cell phenotype but are a different T cell subset (Treg ...

  6. List of immune cells - Wikipedia

    en.wikipedia.org/wiki/List_of_immune_cells

    Lymphocyte: B cell: MBC; 8-10 Memorizes the characteristics of the antigens; Triggers an accelerated and robust secondary immune response [4] [16] Killer T cell: Lymphocyte: T cell: T lymphocyte; Lymphocytus T; 8-10 Virus-infected cells; Cancer cells; Recruits and communicates with other types of immune cells [4] [17] Memory T cell: Lymphocyte ...

  7. Follicular B helper T cells - Wikipedia

    en.wikipedia.org/wiki/Follicular_B_helper_T_cells

    Follicular helper T cells (also known as T follicular helper cells and abbreviated as T FH), 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. [1]

  8. Helper/suppressor ratio - Wikipedia

    en.wikipedia.org/wiki/Helper/suppressor_ratio

    The T-Lymphocyte Helper/Suppressor Profile (Helper/Suppressor ratio, T4:T8 ratio, CD4:CD8 ratio) is a basic laboratory test in which the percentage of CD3-positive lymphocytes in the blood positive for CD4 (T helper cells) and CD8 (a class of regulatory T cells) are counted and compared.

  9. Innate lymphoid cell - Wikipedia

    en.wikipedia.org/wiki/Innate_lymphoid_cell

    The coordinated expression of these specific transcription factors activate or repress target genes critical in the differentiation of the lymphocyte subsets. [27] In particular, Nfil3, whose expression is regulated by cytokines, controls the differentiation of ILCs via the transcription factors Id2, RORγt, Eomes, and Tox . [ 29 ]