Unscheduled apoptosis during acute inflammatory lung injury

Lin L. Mantell, Jeffrey A. Kazzaz, Jing Xu, Thomas A. Palaia, Bruno Piedboeuf, Stephen Hall, Gregory C. Rhodes, Gang Niu, Alan F. Fein, Stuart Horowitz

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Apoptosis is a mode of cell death currently thought to occur in the absence of inflammation. In contrast, inflammation follows unscheduled events such as acute tissue injury which results in necrosis, not apoptosis. We examined the relevance of this paradigm in three distinct models of acute lung injury; hyperoxia, oleic acid, and bacterial pneumonia. In every case, it was found that apoptosis is actually a prominent component of the acute and inflammatory phase of injury. Moreover, using strains of mice that are differentially sensitive to hyperoxic lung injury we observed that the percent of apoptotic cells was well correlated with the severity of lung injury. These observations suggest that apoptosis may be one of the biological consequences during acute injury and the failure to remove these apoptotic cells may also contribute to the inflammatory response.

Original languageEnglish (US)
Pages (from-to)600-607
Number of pages8
JournalCell Death and Differentiation
Issue number7
StatePublished - 1997


  • Hyperoxia
  • Necrosis
  • Oleic acid
  • Programmed cell death

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology


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