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Interleukin 21 (IL-21) is a protein that in humans is encoded by the IL21 gene. [5] [6] [7]Interleukin-21 is a cytokine that has potent regulatory effects on cells of the immune system, including natural killer (NK) cells and cytotoxic T cells that can destroy virally infected or cancerous cells.
Pathogen-specific T SCM cells have been identified in a number of studies of human acute and chronic infections caused by viruses, bacteria and parasites. The presence of T SCM might be essential for the control of persisting infections, in which effector T cells undergo exhaustion and need to be restored; this was supported by the evidence of a negative correlation between the severity of ...
Antiretroviral therapy, the most common treatment for patients with HIV, has been shown to restore CD4+ T cell counts. [20] The body responds to T cell depletion by producing an equal amount of T cells. However, over time, an individual's immune system can no longer continue to replace CD4+ T cells. [21] This is called the "tap and drain ...
Interleukin 21 receptor is a type I cytokine receptor. IL21R is its human gene. [5]The protein encoded by this gene is a cytokine receptor for interleukin 21 (IL21). It belongs to the type I cytokine receptors, and has been shown to form a heterodimeric receptor complex with the common gamma chain (γc), a receptor subunit also shared by the receptors for interleukin 2 (IL2), interleukin 7 ...
Immunotherapy or biological therapy is the treatment of disease by activating or suppressing the immune system.Immunotherapy is designed to elicit or amplify an immune response are classified as activation immunotherapies, while immunotherapies that reduce or suppress are classified as suppression immunotherapies.
Depiction of adoptive cell transfer therapy with CAR-engineered T cells. The first step in the production of CAR T-cells is the isolation of T cells from human blood. CAR T-cells may be manufactured either from the patient's own blood, known as an autologous treatment, or from the blood of a healthy donor, known as an allogeneic treatment. The ...
Their key effector cytokine is IL-10. Their main effector cells are NK cells as well as CD8 T cells, IgG B cells, and IL-10 CD4 T cells. The key THαβ transcription factors are STAT1 and STAT3 as well as IRFs. IL-10 from CD4 T cells activate NK cells' ADCC to apoptose virus-infected cells and to induce host as well as viral DNA fragmentation ...
Additionally, it has been shown that ICOS induces the secretion of IL-21 cytokine by activated CD4 + T cells and that IL-21 plays a crucial role in the development of T FH cells and germinal centers. [ 8 ] [ 9 ] Also Bcl-6 is a transcription factor identified in T FH cells, but it may have roles that extend beyond this subset, because it has ...