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Effects on in vivo administration of G-CSF on neutrophil and eosinophil adhesion
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Medical Sciences.
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1997 (English)In: British Journal of Haematology, ISSN 0007-1048, E-ISSN 1365-2141, Vol. 98, no 3, 603-611 p.Article in journal (Refereed) Published
Abstract [en]

The effect in vivo of G-CSF on neutrophil and eosinophil adhesion was studied after subcutaneous administration to six healthy individuals of human recombinant glycosylated G-CSF (lenograstim) (3 micrograms/kg) for 6 consecutive days. Basal adhesion and adhesion to E-selectin. VCAM-1 and ICAM-1 of neutrophil and eosinophil granulocytes were measured selectively. During G-CSF administration neutrophil basal adhesion increased from 7.4 +/- 3.9% (mean +/- SD) to 55.8 +/- 12.9% and 23.2 +/- 4.4%, 4 and 7 d, respectively, after start of the administration. At the same time points eosinophil basal adhesion increased from 7.1 +/- 2.4% to 37.7 +/- 6.1% and 13.1 +/- 5.3%, respectively. When adhesion was measured in the presence of Mn2+, which increases the functional activity of integrins, an even higher increase of neutrophil and eosinophil basal adhesion was noted 4 and 7 d, respectively, after start of G-CSF administration. In parallel with the enhanced basal adhesion neutrophil adhesion to E-selectin and ICAM-1 and eosinophil adhesion to E-selectin. VCAM-1 and ICAM-1 were significantly (P < 0.05) increased after 4 d of G-CSF administration as was neutrophil cell surface expression of CD11b and CD18. In vitro G-CSF induced minimal changes of granulocyte basal adhesion and inhibition of the adhesion to E-selectin. 10 ng/ml TNF alpha significantly increased neutrophil and eosinophil basal adhesion and adhesion to VCAM-1 and ICAM-1. In summary, administration of G-CSF to healthy subjects induced enhanced adhesion of neutrophil and eosinophil granulocytes, probably mediated by an increase of the functional capacity of beta 1- and beta 2-integrins. The induction of increased levels of TNF alpha might be one mechanism behind the in vivo effect of G-CSF administration.

Place, publisher, year, edition, pages
1997. Vol. 98, no 3, 603-611 p.
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Medical and Health Sciences
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URN: urn:nbn:se:uu:diva-55213DOI: 10.1046/j.1365-2141.1997.2723093.xPubMedID: 9332315OAI: oai:DiVA.org:uu-55213DiVA: diva2:83121
Available from: 2008-10-17 Created: 2008-10-17 Last updated: 2017-12-04Bibliographically approved

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