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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Granulocyte colony-stimulating factor does not enhance endotoxin-induced acute lung injury in guinea pigs.

We studied recombinant human granulocyte colony-stimulating factor (G-CSF) in terms of its hematopoietic and neutrophil-activating effects on acute lung injury induced by endotoxin. Guinea pigs were divided into four groups: (1) saline control animals, (2) endotoxin alone, (3) cyclophosphamide (CPA)+endotoxin, and (4) G-CSF+endotoxin. A G-CSF dose of 20 micrograms/kg was given subcutaneously twice a day for 5 days. Animals were observed for 4 h after intravenously administered endotoxin (0.02 and 2.0 mg/kg) with serial measurements of complete blood counts and hemodynamics. Lung extravascular water, [125I]albumin leakage in lung tissue, and histopathologic features were examined at death. The endotoxin-alone group showed peripheral leukopenia, transient hypotension, excess lung water, increased albumin leakage, PMN accumulation in lung tissue, and gross histopathologic edema. G-CSF-treated animals showed attenuated responses in peripheral leukopenia, excess lung water, and albumin leakage in comparison with the endotoxin-alone group. No augmented responses were seen in the G-CSF group. The CPA+endotoxin group also had attenuated lung injury, which was similar to that in the G-CSF group. In conclusion, pretreatment with G-CSF tended to attenuate rather than enhance neutrophil-dependent acute lung responses to endotoxin.[1]


  1. Granulocyte colony-stimulating factor does not enhance endotoxin-induced acute lung injury in guinea pigs. Kanazawa, M., Ishizaka, A., Hasegawa, N., Suzuki, Y., Yokoyama, T. Am. Rev. Respir. Dis. (1992) [Pubmed]
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