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Basophils and type 2 immunity.

Booki Min¹, William E Paul

¹Department of Immunology/NB30, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio, USA.

Current Opinion in Hematology

|November 29, 2007

Summary

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Basophils, potent IL-4 producers, are increasingly recognized for their role in type 2 immunity. These cells are crucial for polarizing immune responses and recruiting other effector cells during allergic inflammation and parasitic infections.

Area of Science:

Immunology
Cell Biology

Background:

Type 2 immunity development mechanisms are not fully understood.
Basophils are key interleukin-4 (IL-4) producing cells.
Basophils may influence immune response polarization.

Purpose of the Study:

To review the unappreciated in vivo roles of basophils.
To explore basophil contributions to type 2 immunity.

Main Methods:

Literature review of recent studies on basophil function.
Analysis of basophil frequency and cytokine production in Th2-related responses.

Main Results:

Basophil frequency increases in parasitic infections and allergic inflammation.
Basophils provide initial IL-4 for T cell polarization.

Related Experiment Videos

Activated basophils release cytokines and recruit eosinophils/neutrophils.

Progenitors of mature basophils have been identified.

Conclusions:

Basophils play significant, previously unappreciated roles in vivo.
Understanding basophil function is critical for type 2 immunity research.