pathogenesis of asthma and omalizumab action

9
Pathogenesi s of asthma

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Page 1: Pathogenesis of asthma and omalizumab action

Pathogenesis of asthma

Page 2: Pathogenesis of asthma and omalizumab action

EPI

GC

DC

antigens

GC

DCDC

Th-2 Activatio

n

Cytokines release

IL-4IL-5IL-13

Air Way

Interstitium

Pathogenesis of Br Asthma

Th2

Page 3: Pathogenesis of asthma and omalizumab action

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

Page 4: Pathogenesis of asthma and omalizumab action

Cytokines release

IL-4

B Cell

Plasma cells

IgE release

Mast Cell

Bas-phil

Page 5: Pathogenesis of asthma and omalizumab action

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

Page 6: Pathogenesis of asthma and omalizumab action

Mast Cell

Bas-phil

FcεRI receptor

Bound Ig E

Mechanism of action of Omalizumab

Page 7: Pathogenesis of asthma and omalizumab action
Page 8: Pathogenesis of asthma and omalizumab action
Page 9: Pathogenesis of asthma and omalizumab action