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Updated: Jul 10, 2026
03:23
Three-Dimensional Cell Culture Models to Investigate the Epithelial Barrier in Eosinophilic Esophagitis
Published on: May 10, 2024
Eosinophil cell: pray tell us what you do!
Kamyar Afshar1, Violeta Vucinic, Om P Sharma
1Division of Pulmonary and Critical Care Medicine, University of Southern California, Los Angeles, California 90033, USA. kafshar@usc.edu
Current Opinion in Pulmonary Medicine
|October 18, 2007
Summary
Eosinophils, crucial innate immune cells, have complex regulatory mechanisms influencing their priming and migration. Dysregulation can lead to eosinophilia and potential host organ damage.
Area of Science:
- Immunology
- Cell Biology
Background:
- Eosinophils are key innate immune cells.
- Recent research has illuminated their regulatory mechanisms, including priming and migration.
Purpose of the Study:
- To review the role of eosinophils as innate immune cells.
- To discuss advances in eosinophil regulation (priming, migration).
- To explore pulmonary diseases associated with eosinophilia.
Main Methods:
- Review of recent scientific literature.
- Analysis of regulatory pathways of eosinophils.
- Discussion of clinical associations with eosinophilia.
Main Results:
- Immunoglobulin A-coated beads rapidly prime eosinophils.
- Tissue factor is expressed in eosinophil granules, acting as a mediator.
- Interleukin-8 (IL-8) acts as a chemoattractant; IL8RA-B ht2 mutations are linked to peripheral eosinophilia.
- Interleukin-10 (IL-10) and eotaxin correlate with eosinophilia during active infection.
- Interleukin-5 (IL-5) and IL-6 correlate with eosinophilia post-therapy.
- Toxocara enzyme-linked immunosorbent assay (ELISA) identified as a cause in a significant portion of unexplained peripheral eosinophilia cases.
Conclusions:
- Eosinophils possess cytotoxic functions against foreign invaders.
- Eosinophils can paradoxically cause harm to host organs via complex immunological pathways.
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