pathogenesis of asthma and omalizumab action
TRANSCRIPT
Pathogenesis of asthma
EPI
GC
DC
antigens
GC
DCDC
Th-2 Activatio
n
Cytokines release
IL-4IL-5IL-13
Air Way
Interstitium
Pathogenesis of Br Asthma
Th2
IL-4IL-5IL-13
IL-4IL-13
B Cell
Plasma cells
IgE release
Mast Cell
Bas-phil
Causes eosinophili
a IL-13 also causes:
Inc. mucus
secretion
Hyperresponsivene
ss
Activation &
Converted to
Cytokines release
IL-4
B Cell
Plasma cells
IgE release
Mast Cell
Bas-phil
Mast Cell
Bas-phil
Free Ig E
FcεRI receptor
Cε3 domain
Bound Ig E
Mechanism of action of Omalizumab
Omalizumab binds to free IgE with
Cε3 domain
Mast Cell
Bas-phil
FcεRI receptor
Bound Ig E
Mechanism of action of Omalizumab