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Eosinophil Development, Disease Involvement, and Therapeutic Suppression.

Patricia C Fulkerson1, Marc E Rothenberg1

  • 1Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH, United States.

Advances in Immunology
|May 8, 2018
PubMed
Summary

Human eosinophils, crucial immune cells, develop via regulated transcription factors and granule formation. Targeting Interleukin-5 (IL-5) proves effective in treating eosinophil-associated disorders like severe asthma.

Keywords:
Eosinophil gastrointestinal diseasesEosinophil-associated diseasesEosinophil-lineage commitmentEosinophilopoiesis

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Area of Science:

  • Immunology and Hematology
  • Cell Biology

Background:

  • Human eosinophils possess unique morphology, including a bilobed nucleus and specialized cytoplasmic granules.
  • Eosinophil development in bone marrow is tightly controlled by transcription factors and requires proper granule formation.

Purpose of the Study:

  • To review the intricate processes of eosinophil development and the implications of tissue eosinophilia.
  • To highlight the therapeutic potential of targeting eosinophil production and activation pathways.

Main Methods:

  • Review of existing literature on eosinophil biology, development, and associated disorders.
  • Analysis of the role of transcription factors and cytokines, particularly IL-5, in eosinophil regulation.

Main Results:

  • Eosinophil production is regulated by a complex interplay of transcription factors and requires spatially organized granule formation.
  • Eosinophils are terminally differentiated cells that, when recruited to tissues, can cause inflammatory damage.
  • Targeting IL-5 or IL-5 receptor alpha (IL-5Rα) with therapies has shown clinical benefit in eosinophilic disorders.

Conclusions:

  • Significant advancements have been made in understanding eosinophil immunobiology and the consequences of tissue eosinophilia.
  • Future research in eosinophil biology and translational efforts are crucial for improved diagnosis and treatment of eosinophil-associated disorders.