Repair of Environmental Lung Injury During Development

Suzette Smiley-Jewell, Laura S. Van Winkle

Research output: Chapter in Book/Report/Conference proceedingChapter

2 Citations (Scopus)

Abstract

This chapter focuses on the repair of environmental injury in normal, full term postnatal lung after exposure to environmental toxicants and compares it to adult lung. 'Repair' is defined as all the processes that are involved in resolving an injury, and includes both cellular and acellular components. Several factors may influence both susceptibility and the capability of the lung to properly repair injury. The alterations seen in repair of the developing lung following exposure to environmental toxicants may be due to a temporary or permanent disruption of the epithelial mesenchymal trophic unit resulting in either an inability to heal the initial wound or disruption of critical morphogenic events. Many factors regulate the repair process following injury by P450-mediated toxicants, including various soluble cytokines and growth factors, interactions with integrins and matrix elements as well as cell-cell interactions. Various studies have demonstrated that when the developing lung does not repair, abnormalities may persist into adulthood. Acute ozone toxicity generates a reversible lesion without a defined long-term pathology but involving a substantial inflammatory cell response. Repair following acute injury is characterized by both proliferation and ciliary regeneration detectable in the surviving cells 24 h after exposure. In case of ozone exposure in adults, the overall response is characterized by a large influx of inflammatory cells into the lung. This influx is predominately neutrophils in the early phase while elevated macrophages persist throughout exposure.

Original languageEnglish (US)
Title of host publicationThe Lung: Development, Aging and The Environment
PublisherElsevier Inc.
Pages353-362
Number of pages10
ISBN (Print)9780080481357, 9780123247513
DOIs
StatePublished - Dec 3 2003

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Lung Injury
Lung
Wounds and Injuries
Ozone
Environmental Exposure
Integrins
Cell Communication
Regeneration
Intercellular Signaling Peptides and Proteins
Neutrophils
Macrophages
Pathology
Cytokines

ASJC Scopus subject areas

  • Medicine(all)

Cite this

Smiley-Jewell, S., & Van Winkle, L. S. (2003). Repair of Environmental Lung Injury During Development. In The Lung: Development, Aging and The Environment (pp. 353-362). Elsevier Inc.. https://doi.org/10.1016/B978-012324751-3/50060-7

Repair of Environmental Lung Injury During Development. / Smiley-Jewell, Suzette; Van Winkle, Laura S.

The Lung: Development, Aging and The Environment. Elsevier Inc., 2003. p. 353-362.

Research output: Chapter in Book/Report/Conference proceedingChapter

Smiley-Jewell, S & Van Winkle, LS 2003, Repair of Environmental Lung Injury During Development. in The Lung: Development, Aging and The Environment. Elsevier Inc., pp. 353-362. https://doi.org/10.1016/B978-012324751-3/50060-7
Smiley-Jewell S, Van Winkle LS. Repair of Environmental Lung Injury During Development. In The Lung: Development, Aging and The Environment. Elsevier Inc. 2003. p. 353-362 https://doi.org/10.1016/B978-012324751-3/50060-7
Smiley-Jewell, Suzette ; Van Winkle, Laura S. / Repair of Environmental Lung Injury During Development. The Lung: Development, Aging and The Environment. Elsevier Inc., 2003. pp. 353-362
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