Changes

==Common Functions of Th₁ and TH₂ Cells==

==Common Functions of Th₁ and TH₂ Cells==

 

Both TH1 and TH2 cells produce IL-3 and granulocyte-macrophage colony stimulating factor ([[Leukopoiesis|GM-CSF]]). These act to activate and induce proliferation of [[Neutrophils|neutrophils]] and [[Macrophages|macrophages]]. [[Neutrophils|Neutrophils]] are the major phagocytic cells in the blood and  the principal cells in acute inflammatory lesions whose function is chiefly the body's defence against extracellular bacteria. One of the major biological functions therefore of the activation of either TH subset is cytokine-controlled reactive [[Haematopoiesis - Overview|haematopoiesis]].

* Both TH1 and TH2 cells produce IL-3 and granulocyte-[[Macrophages|macrophage]] colony stimulating factor (GM-CSF).  

** These act to activate and induce proliferation of [[Neutrophils|neutrophils]] and also [[Macrophages|macrophages]].

*** [[Neutrophils|Neutrophils]] are the major phagocytic cells in the blood and  the principal cells in acute inflammatory lesions.

**** Function chiefly in the defence against extracellular bacteria.  

** Therefore, one of the major biological functions of the activation of either TH subset is cytokine-controlled reactive [[Haematopoiesis - Overview|haematopoiesis]].

==Cytotoxic T-Cells==

==Cytotoxic T-Cells==