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Updated: Jul 9, 2026

In vitro Coculture Assay to Assess Pathogen Induced Neutrophil Trans-epithelial Migration
Published on: January 6, 2014
Pathobiology of neutrophil transepithelial migration: implications in mediating epithelial injury
Alex C Chin1, Charles A Parkos
1Epithelial Pathobiology Unit, Department of Pathology and Laboratory Medicine, Emory University, Atlanta, Georgia 30322, USA. achin@emory.edu
Abstract:
Neutrophil (also known as polymorphonuclear leukocyte, or PMN) transepithelial migration and accumulation at mucosal surfaces is a hallmark of many inflammatory conditions. This process correlates directly with clinical disease activity and epithelial injury. Currently, the mechanisms that define PMN epithelial interactions during an inflammatory response are not completely understood. This review provides an overview of the consequences of PMN infiltration into epithelial tissues and highlights molecular details of PMN epithelial interactions during transmigration. A better understanding of this process will likely provide new insights into developing organ-specific treatment strategies to reduce the deleterious consequences of epithelial inflammation.
Insights
Neutrophil (polymorphonuclear leukocyte, PMN) migration into tissues is key in inflammatory diseases. Understanding PMN-epithelial interactions offers new therapeutic targets for inflammation.
Area of Science:
- Immunology
- Cell Biology
- Pathology
Background:
- Neutrophil (polymorphonuclear leukocyte, PMN) transepithelial migration and accumulation are characteristic of inflammatory conditions.
- This process is directly linked to clinical disease severity and epithelial damage.
Purpose of the Study:
- To review the consequences of PMN infiltration into epithelial tissues.
- To highlight molecular mechanisms of PMN epithelial interactions during transmigration.
Main Methods:
- Literature review of existing research on neutrophil transmigration.
- Analysis of molecular interactions between neutrophils and epithelial cells.
Main Results:
- PMN infiltration contributes significantly to epithelial tissue injury during inflammation.
- Specific molecular pathways govern PMN adhesion, transmigration, and subsequent tissue effects.
Conclusions:
- A comprehensive understanding of PMN-epithelial interactions is crucial for developing targeted anti-inflammatory therapies.
- Further research into these mechanisms may lead to organ-specific treatments to mitigate epithelial inflammation.
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