Thromb Haemost 1998; 80(03): 477-480
DOI: 10.1055/s-0037-1615232
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Induction of Endothelial Cell Adhesion Molecules by Serum and Immunoglobulins G from a Patient with Vasculitis and Monoclonal Gammapathy: Potential Relevance to Vasculitis

Evelyne Dupuy
1   From the Department of Hematology
,
Jean-Marc Herbert
3   From the Sanofi Recherche, Toulouse, France
,
Véronique Giraudeau
2   From the Laboratory of Biochemistry, Hôpital Lariboisière, Paris
,
Isabelle Quere
1   From the Department of Hematology
,
Jean-Marc Zini
1   From the Department of Hematology
,
Gérard Tobelem
1   From the Department of Hematology
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Publikationsverlauf

Received 15. September 1997

Accepted after revision 06. April 1998

Publikationsdatum:
08. Dezember 2017 (online)

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Summary

Interactions between endothelial cell adhesion molecules and their β2 integrin adhesive receptors on leukocytes are thought to play a role in the pathogenesis of inflammatory diseases and probably vasculitis. We describe a case in whom leukocytoclastic vasculitis was associated to a monoclonal immunoglobulin G2 kappa (IgG2K). During the vasculitic crisis, the patient’s serum and the isolated IgG from this serum induced the expression of E-selectin, VCAM-1 and ICAM-1 at the HUVEC surface, but not tissue factor activity, whereas normal, control serum and patient serum at remission were without any effect.

A close relationship between the vasculitis and the serum level of the monoclonal IgG was observed. We suggest that the monoclonal IgG might induce the vasculitis by increasing the expression of E-selectin, VCAM-1 and ICAM-1 which facilitate the interaction of leukocytes with vascular endothelium.