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Interferon beta can be produced by all nucleated cells when they recognize that a virus has invaded them. The most prolific producers of IFN-α and IFN-β are plasmacytoid dendritic cells circulating in the blood. Monocytes and macrophages can also produce large amounts of type I interferons when stimulated by viral molecular patterns. The ...
Interferon gamma (IFNG or IFN-γ) is a dimerized soluble cytokine that is the only member of the type II class of interferons. [5] The existence of this interferon, which early in its history was known as immune interferon, was described by E. F. Wheelock as a product of human leukocytes stimulated with phytohemagglutinin, and by others as a product of antigen-stimulated lymphocytes. [6]
The type-I interferons (IFN) are cytokines which play essential roles in inflammation, immunoregulation, tumor cells recognition, and T-cell responses. In the human genome, a cluster of thirteen functional IFN genes is located at the 9p21.3 cytoband over approximately 400 kb including coding genes for IFNα (IFNA1, IFNA2, IFNA4, IFNA5, IFNA6, IFNA7, IFNA8, IFNA10, IFNA13, IFNA14, IFNA16 ...
Plasmacytoid dendritic cells are also distinguished from cDCs because of their ability to produce significant amounts of type-1 interferon. [ 6 ] pDC maturation is initiated when the cell comes in contact with a virus, prompting the upregulation of MHC class I and MHC class II , co-stimulatory molecules CD80 , CD86 , CD83 , and c-c chemokine ...
The vast majority of these are produced by T-helper cells. Lymphokines: produced by lymphocytes; Monokines: produced exclusively by monocytes; Interferons: involved in antiviral responses; Colony stimulating factors: support the growth of cells in semisolid media; Chemokines: mediate chemoattraction between cells.
The T h cells receiving both signals of activation and proliferation will then become T h 0 (T helper 0) cells that secrete IL-2, IL-4 and interferon gamma (IFN-γ). The T h 0 cells will then differentiate into T h 1 or T h 2 cells depending on cytokine environment. IFN-γ drives T h 1 cell production while IL-10 and IL-4 inhibit T h 1 cell ...
Interferon alpha-1 is a protein that in humans is encoded by the IFNA1 gene. [3] [4] Leukocyte interferon is produced predominantly by B lymphocytes. Immune interferon (IFN-gamma; MIM 147570) is produced by mitogen- or antigen-stimulated T lymphocytes.[supplied by OMIM] [4]
T H 1 cells which produce interferon gamma and lymphotoxin alpha, T H 2 cells which produce IL-4, IL-5, and IL-13. A third category called T helper 17 cells (T H 17) were also discovered which are named after their secretion of Interleukin 17. CD8 + cytotoxic T-cells may also be categorized as: [5] T c 1 cells, T c 2 cells.