PMID: 7541392Apr 1, 1995Paper

Effect of tumor necrosis factor receptor binding protein on cell infiltration induced by lipopolysaccharide and Sephadex beads in guinea pig lung

Inflammation
D M ConroyP Sirois

Abstract

In the present study, the effect of a tumor necrosis factor receptor binding protein (TNFbp) on the cell infiltration induced by lipopolysaccharide (LPS) and Sephadex beads in guinea pig lung was examined. The intratracheal injection of LPS (2.5 micrograms) induced a six-fold increase in total cell number recovered in bronchoalveolar lavage (BAL) fluid at 24 hr. This increase in bronchopulmonary inflammation was mainly due to a neutrophil and macrophage infiltration, representing 60% and 35% of the total cells, respectively. The intravenous or intratracheal injection of Sephadex beads to guinea pigs induced a three-fold increase in total cell number recovered in BAL at 24 h and was characterized by a prominent eosinophil, macrophage, and neutrophil infiltration representing 36%, 42%, and 16% of the total cells, respectively. In addition, bronchial tissues isolated from Sephadex-treated guinea pigs showed an increased in vitro reactivity to both histamine and acetylcholine. TNFbp (1-50 micrograms) induced a dose-dependent inhibition of cell infiltration induced by LPS. In contrast TNFbp neither attenuated the bronchopulmonary cell infiltration observed 24 h following intravenous or intratracheal administration of Sephadex beads ...Continue Reading

References

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Citations

Apr 5, 2003·Journal of Huazhong University of Science and Technology. Medical Sciences = Hua Zhong Ke Ji Da Xue Xue Bao. Yi Xue Ying De Wen Ban = Huazhong Keji Daxue Xuebao. Yixue Yingdewen Ban·Ruji NiuJuan Fu
Apr 17, 2013·European Journal of Pharmacology·Peng-Jiu YuShu-Guang Wu

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