Current Allergy and Asthma Reports

, Volume 5, Issue 1, pp 35–41

CD25+ T cells and regulation of allergen-induced responses

  • Marina Ostroukhova
  • Anuradha Ray


CD4 T helper 2 (Th2) cells, with the characteristic interleukin (IL)-4, IL-5, and IL-13 cytokine secretion profile, play an important role in the initiation and perpetuation of allergic airways disease. It is clear from recent studies that CD4+ T cells with distinct cytokine-producing abilities have regulatory functions that limit allergic inflammation. Studies of allergic airway inflammation in mice have identified different types of T regulatory cells (Tregs) that control the disease phenotype. The cytokines associated with the Treg phenotype in mice include both soluble and cell membrane-bound transforming growth factor (TGF)-β and IL-10. Both contact-dependent mechanisms involving membrane-bound TGF-β and contactindependent mechanisms involving soluble TGF-β and IL-10 have been invoked to describe the function of these Tregs. In humans, studies of milk allergy show an association between circulating CD4+CD25+ Tregs and tolerance to the causative allergen, β-lactoglobulin. The identification of Tregs as suppressors of allergic disease may promote the development of new therapeutic strategies.


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Copyright information

© Current Science Inc 2005

Authors and Affiliations

  • Marina Ostroukhova
    • 1
  • Anuradha Ray
    • 1
  1. 1.Department of Medicine, Pulmonary, Allergy and Critical Care MedicineUniversity of Pittsburgh School of MedicinePittsburghUSA

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