Article: Molecular mechanisms of allergic disease.(Featured CME Topic: Allergy)

Abstract: Interaction of allergen with T-cells is associated with patterns of cytokine release by immunocompetent cells characterized as T-helper Th1 or Th2 T-immune responses. The Th2 pattern of inflammation induced by this cytokine release is associated with allergic diseases. The molecular mechanisms underlying allergic inflammation are the signals for immunoglobulin (Ig) E production and the activation of mast cells and eosinophils. Data suggesting that environmental exposure may play a role in the induction of the Th2 pattern of inflammation has led to the development of the "hygiene hypothesis." Knowledge of the mechanisms of allergic inflammation has allowed the ...

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