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Exp Lung Res. 2007 Oct-Nov;33(8-9):385-417.

Duration-dependent cytoprotective versus inflammatory effects of lung epithelial fibroblast growth factor-7 expression.

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Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, Ohio 45267, USA.


Fibroblast growth factor-7 (FGF7) is a lung epithelial cell mitogen that is cytoprotective during injury. Transgenic mice that conditionally expressed FGF7 were used to dissect the mechanisms of FGF7 protection during lung injury. FGF7 improved survival when induced 3 days prior to acute lung injury. In contrast, FGF7 caused pulmonary inflammation and lung injury after 7 days or longer. Gene expression analysis of mouse lung mRNA identified mRNAs that contribute to the protective effects of FGF7. FGF7 improved survival during acute lung injury in adult mouse lung after short-term expression, but paradoxically induced inflammation and injury after persistent expression.

[Indexed for MEDLINE]

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