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→Common Functions of Th1 and TH2 Cells
#'''IL-6''' also activates B cells, stimulates a high rate of proliferation and promotes immunoglobulin synthesis.
#'''IL-6''' also activates B cells, stimulates a high rate of proliferation and promotes immunoglobulin synthesis.
==Common Functions of Th<sub>1</sub> and TH<sub>2</sub> Cells==
==Common Functions of TH<sub>1</sub> and TH<sub>2</sub> 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-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]]'''.