Cytokines USMLE

USMLE step 1 cytokine

13 cards   |   Total Attempts: 182
  

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IL1
Secredetd by macro's. Causes acute inflammation. Induces chmokine production to recruit leukocytes; activates endothelium to express adhesion molecules. An endogenous pyrogen.
IL-2
Secreted by Th cells. Stimulates growth of helper and cytototoxic T cells.
IL-3
Secreted by activated T cells. Supports teh growth and differentiation of bone bmarrrow stem cells. Has a similar function to GM-CSF.
Il-4
Secreted by Th2 cells. Promotes differentiation of B cell.s Enhances class switching to IgA. Stimulates production and activation of eosinophils.
Il-6
Secreted by Th cells and macrophages. Stimulates production of acute-phase reactants and immunoglobulins.
IL-5
Secreted by Th2 cells Promotes differentiation of Bcells. Enhances class switching to IgA. Stimulates production and activation of eosinophils.
IL-8
Secreted by macrophages. Major chemtactic factor for neutrophils.
Secreted by macrophages.
Major chemotactic factor for neutrophils
Il-10
Secreted by regulatory T cells. Inhibits actions of activated T cells.
Il-12
Secreted by B cells and macrophages. Activates NK and Th1 cells.
Y-interferon
Secreted by Th1 cells. Stimulates macrophages.
TNF
Secreted by macrophages. Mediates septic shock. Causes leukocyte recruitment, vascular rleak. cachexia-supppresses appetite, inhibits lipoporotein lipase and increases insulin resistance of peripheral tissues.
IFN-alpha
The IFN-α proteins are produced by leukocytes. They are mainly involved in innate immune response against viral infection. They