Different susceptibilities of PECAM-deficient mouse strains to spontaneous idiopathic pneumonitis

Alan R. Schenkel*, Tina W. Chew, Elizabeth Chlipala, Marcus W N Harbord, William A. Muller

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations


Platelet Endothelial Cell Adhesion Molecule (PECAM) is an adhesion and signaling molecule used for leukocyte extravasation. We have generated two strains of PECAM-deficient mouse, one in the original C57BL/6 and a second by backcrossing nice generations into the FVB/n strain. The FVB/n strain has reduced responses in models of acute inflammation. We show here that this strain is also susceptible to a chronic pneumonia which leads to pulmonary fibrosis. In contrast, PECAM-deficient C57BL/6 mice do not develop this lung disease and have normal responses in acute models of inflammation. This demonstrates that PECAM-dependent and -independent mechanisms are found in both acute and chronic inflammation. Further, the PECAM-deficient FVB/n strain has many pathologic similarities to the human disease Idiopathic Pulmonary Fibrosis, suggesting that similar molecular mechanisms may play a role in human disease.

Original languageEnglish (US)
Pages (from-to)23-30
Number of pages8
JournalExperimental and Molecular Pathology
Issue number1
StatePublished - Aug 2006

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Molecular Biology
  • Clinical Biochemistry

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