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Cytokines & Functions
list of major cytokines, few chemokines & their function
22
Immunology
Graduate
11/15/2011

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Cards

Term
Cytokines/chemokines
Definition
Functions
Term
Interleukin-1 (IL-1)
Definition
lymphocyte activation, macrophage activation, ­ leukocyte/endothelial adhesion, pyrexia, acute phase proteins
Term
Interleukin-2 (IL-2)
Definition
t-cell proliferation & differentiation, activation of cytotoxic lymphocytes & macrophages
Term
Interleukin-3 (IL-3)
Definition
multilineage colony stimulation factor
Term
Interleukin-4 (IL-4)
Definition
B-cell growth factor, isotype selection, IgE, IgG2, IgG4, IgA, suppresses cell mediated immunity & production of IgG1 & IgG3
Term
Interleukin-5 (IL-5)
Definition
B-cell growth & differentiation, IgA selection
Term
Interleukin-6 (IL-6)
Definition
B-cell differentiation, induces acute phase proteins
Term
Interleukin-7 (IL-7)
Definition
B & T cell proliferation
Term
Interleukin-10 (IL-10)
Definition
inhibition of cytokine synthesis? Cytokine released by CD4 T helper 2 cells & regulatory t cells. Promotes development of t helper 2 cells & inhibit macrophage activation
Term
Interleukin-12 (IL-12)
Definition
secreted by macrophages to activate NK cells or T helper 1 cells
Term
Interleukin-13 (IL-13)
Definition
B cell growth & differentiation, inhibits pro-inflammatory cytokine production
Term
Interleukin -17 (IL-17)
Definition
release of IL-6, IL-8, G-CSF, PGE2, enhances ICAM-1, stimulates fibroblasts to sustain CD34+ PROGENITORS
Term
Interferon-α (IFN-α)
Definition
MHC class I induction, antiviral state, stimulation of NK cells, anti-proliferative, stimulates IL-12 production & T helper 1
Term
Interferon-γ (IFN-γ)
Definition
MHC class I & II induction, MÆ activation, ­ endothelial cell/lymphocyte adhesion, MÆ cytokine synthesis, antiviral state, anti-proliferative t helper 1 cells
Term
Tumor necrosis factor-α (TNF-α)
Definition
activation of MÆ, granulocytes & cytotoxic cells, leukocyte endothelial cell adhesion, cachexia, pyrexia, induction of acute phase proteins, stimulation of angiogenesis, enhanced MHC class I production
Term
Tumor Necrosis factor –β (TNF-β)
Definition
lymphotoxin, produced by t lymphocytes that inhibits growth of tumors & blocks transformation of cells
Term
Transforming growth factor-β (TGF-β)
Definition
downregulates inflammatory cytokine production, promotes wound healing responses & scar tissue, growth inhibition
Term
Chemokine CCL21
Definition
binds to CCR7. Acts toward dendritic cells & t lymphocytes. Mediates homing of lymphocytes to 2° lymphoid organs
Term
Chemokine CCL19
Definition
secreted by stromal cells & dendritic cells in 2° lymphoid tissues, attract luekocytes & dendritic cells to the tissue
Term
Chemokine CCL18
Definition
secreted by mature dendritic cells in 2° lymphoid tissues, which specifically attract naïve T cells.
Term
Chemokine CXCL2
Definition
produced by t helper 1 cells, guides phagocytes b/w the endothelial cells into the infected area.
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