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  2. Memory T cell - Wikipedia

    en.wikipedia.org/wiki/Memory_T_cell

    Antigen-specific memory T cells specific to viruses or other microbial molecules can be found in both central memory T cells (T CM) and effector memory T cells (T EM) subsets. . Although most information is currently based on observations in the cytotoxic T cells (CD8-positive) subset, similar populations appear to exist for both the helper T cells (CD4-positive) and the cytotoxic T ce

  3. T cell - Wikipedia

    en.wikipedia.org/wiki/T_cell

    Unlike CD8 + killer T cells, the CD4 + helper T (T H) cells function by further activating memory B cells and cytotoxic T cells, which leads to a larger immune response. The specific adaptive immune response regulated by the T H cell depends on its subtype (such as T-helper1, T-helper2, T-helper17, regulatory T-cell), [ 4 ] which is ...

  4. T helper cell - Wikipedia

    en.wikipedia.org/wiki/T_helper_cell

    The novel characterisation of another T helper subtype, T helper 17 cells (T h 17) [29] has cast further doubt on the basic T h 1/T h 2 model. These IL-17 producing cells were initially described as a pathogenic population implicated in autoimmunity but are now thought to have their own distinct effector and regulatory functions.

  5. Immunological memory - Wikipedia

    en.wikipedia.org/wiki/Immunological_memory

    Memory T cells can be both CD4+ and CD8+. These memory T cells do not require further antigen stimulation to proliferate; therefore, they do not need a signal via MHC. [13] Memory T cells can be divided into two functionally distinct groups based on the expression of the CCR7 chemokine receptor.

  6. List of immune cells - Wikipedia

    en.wikipedia.org/wiki/List_of_immune_cells

    Memory T cell: Lymphocyte: T cell: MTC; 8-10 Memorizes the characteristics of the antigens; Triggers an accelerated and robust secondary immune response [4] [18] T helper cell: Lymphocyte: T cell: T h cells; CD4 + cells; CD4-positive cells; 8-10 Aids the activity of other immune cells by releasing cytokines [4] [19] Natural killer T cell ...

  7. Cytotoxic T cell - Wikipedia

    en.wikipedia.org/wiki/Cytotoxic_T_cell

    Antigen presentation stimulates T cells to become either "cytotoxic" CD8+ cells or "helper" CD4+ cells.. A cytotoxic T cell (also known as T C, cytotoxic T lymphocyte, CTL, T-killer cell, cytolytic T cell, CD8 + T-cell or killer T cell) is a T lymphocyte (a type of white blood cell) that kills cancer cells, cells that are infected by intracellular pathogens (such as viruses or bacteria), or ...

  8. Vitamin B12 Is a Power Nutrient. Here's How to Know If ... - AOL

    www.aol.com/vitamin-b12-power-nutrient-heres...

    This causes fatigue, paleness in the skin, nerve problems, and memory loss. Pernicious anemia , or Addison's anemia, is an autoimmune disease which decreases red blood cell count, caused by the ...

  9. T memory stem cell - Wikipedia

    en.wikipedia.org/wiki/T_memory_stem_cell

    Longitudinal studies on T SCM dynamics in patients undergoing hematopoietic stem cell transplantation (HSCT) have shown that donor-derived T SCM cells were highly enriched early after HSCT, differentiated directly from Tn, and that Tn and T SCM cells (but not central memory or effector T cells) were able to reconstitute the entire heterogeneity of memory T cell subsets including T SCM cells. [4]