Transcript Fc[RI
FcɛRI Signalling Pathway
The Ligand : IgE
Mast and Basophil Cells
•
Fc receptors bind tail region of IgE antibodies.
The Receptor
Tyrosine Kinases
Lyn
Syk
The Pathway
Binding of IgE
•Aggregation of receptors
•
Lyn binds beta unit of one
receptor and transphosphorylates
the beta ITAM, gamma ITAM, and
Syk associated with adjacent
receptor.
Syk can also phosphorylate syk
associated with adjacent receptor
Syk activation
Cascade of reactions
Degranulation
Allergy sufferers are at a lower
risk of developing cancer
Inverse association between IgE and
malignancies
•
IgE-mediated immune responses against tumor
cells
•
IgE-based treatment options
•
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Histogram not generating all first passage times
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But it wasn't so bad
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Bngl easy to understand
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Easy to define chemical
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reactions
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Can manipulate molecule
concentrations
Can set time period of
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