Journal ArticleDOI
CD40 ligand on activated platelets triggers an inflammatory reaction of endothelial cells
Volker Henn,Joseph R. Slupsky,Michael Gräfe,Ioannis Anagnostopoulos,Reinhold Förster,Gert Müller-Berghaus,Richard A. Kroczek +6 more
TLDR
In this paper, platelets express CD40L within seconds of activation in vitro and in the process of thrombus formation in vivo, indicating that platelets are not only involved in haemostasis but that they also directly initiate an inflammatory response of the vessel wall.Abstract:
CD40 ligand (CD40L, CD154), a transmembrane protein structurally related to the cytokine TNF-alpha, was originally identified on stimulated CD4+ T cells, and later on stimulated mast cells and basophils. Interaction of CD40L on T cells with CD40 on B cells is of paramount importance for the development and function of the humoral immune system. CD40 is not only constitutively present on B cells, but it is also found on monocytes, macrophages and endothelial cells, suggesting that CD40L has a broader function in vivo. We now report that platelets express CD40L within seconds of activation in vitro and in the process of thrombus formation in vivo. Like TNF-alpha and interleukin-1, CD40L on platelets induces endothelial cells to secrete chemokines and to express adhesion molecules, thereby generating signals for the recruitment and extravasation of leukocytes at the site of injury. Our results indicate that platelets are not only involved in haemostasis but that they also directly initiate an inflammatory response of the vessel wall.read more
Citations
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Journal ArticleDOI
Thrombin signalling and protease-activated receptors
TL;DR: Roles for PARs are beginning to emerge in haemostasis and thrombosis, inflammation, and perhaps even blood vessel development.
Journal ArticleDOI
The immune response in atherosclerosis: a double-edged sword
Göran K. Hansson,Peter Libby +1 more
TL;DR: This Review focuses on the role of immune mechanisms in the formation and activation of atherosclerotic plaques, and also includes a discussion of the use of inflammatory markers for predicting cardiovascular events.
Journal ArticleDOI
Platelet Activation and Atherothrombosis
Giovanni Davì,Carlo Patrono +1 more
TL;DR: This review of the role of platelets in at Herothrombosis illuminates the surprisingly numerous activities of these tiny, anucleate cells and stresses their participation in the inflammatory component of atherothromBosis.
Journal ArticleDOI
Inflammation in wound repair: molecular and cellular mechanisms.
TL;DR: Cellular and molecular mechanisms controlling inflammation in cutaneous tissue repair are reviewed and a rationale for targeting the inflammatory phase in order to modulate the outcome of the healing response is provided.
Journal ArticleDOI
Cytokines in atherosclerosis: pathogenic and regulatory pathways.
Alain Tedgui,Ziad Mallat +1 more
TL;DR: Based on the current knowledge of the role of cytokines in atherosclerosis, some novel therapeutic strategies to combat this disease are proposed and the potential of circulating cytokine levels as biomarkers of coronary artery disease is discussed.
References
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Interleukin-8 and related chemotactic cytokines--CXC and CC chemokines.
TL;DR: In this paper, the authors focused on interleukin-8 (IL-8) and related chemotactic cytokines, namely, CXC and CC chemokines.
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The Molecular and Cellular Biology of Wound Repair
Richard A.F. Clark,P. M. Henson +1 more
TL;DR: Wound Repair: Overview and General Considerations (R.A.F. Clark), Macrophage Involvement in Wound Repair, Remodeling and Fibrosis, and the Role of Plateletderived Growth Factor in vivo (C.W. Riches).
Journal ArticleDOI
Activation of human dendritic cells through CD40 cross-linking.
Christophe Caux,Catherine Massacrier,Béatrice Vanbervliet,Bertrand Dubois,C. van Kooten,Isabelle Durand,Jacques Banchereau +6 more
TL;DR: It is demonstrated that dendritic Langerhans cells (D-Lc) generated by culturing cord blood CD34+ progenitor cells with granulocyte/macrophage colony-stimulating and tumor necrosis factor alpha (TNF-alpha) express functional CD40 at a density higher than that found on B cells.