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Interactions between Inflammation and Coagulation in Autoimmune and Immune-Mediated Skin Diseases

[ Vol. 10 , Issue. 5 ]

Author(s):

Angelo V. Marzano, Alberto Tedeschi, Ilaria Polloni, Carlo Crosti and Massimo Cugno   Pages 647 - 652 ( 6 )

Abstract:


Inflammation and coagulation systems are simultaneously activated in autoimmune and immune-mediated skin disorders, and the cross-talk that amplifies and maintains their activation seems to have both local and systemic implications. This interplay occurs in bullous pemphigoid (BP), the prototype autoimmune blistering disease in which eosinophil recruitment and thrombin generation locally contribute to the formation of bullae and inflammatory tissue damage. Moreover, the systemic activation of coagulation may explain the increased thrombotic risk observed in BP patients. Atopic dermatitis (AD), a chronically relapsing immune-mediated inflammatory skin disease, also involves the local and systemic activation of coagulation, which means that a prothrombotic state could theoretically develop, although the incidence of thrombosis is not increased in AD patients probably because of their young age. In psoriasis, a erythematoussquamous inflammatory immune-mediated skin disorder, the activation of coagulation seems to be mainly systemic and related to systemic inflammation, thus potentially contributing to the disease-related increase in cardiovascular risk in this disease. The activation of coagulation has also been suggested an additional pathomechanism in dermatitis herpetiformis (DH), a chronic-relapsing autoimmune skin disease associated with gluten sensitivity and celiac disease, but its precise role has not yet been defined. Taken together, these data provide the rationale for controlled clinical trials aimed at evaluating the usefulness of anticoagulant treatment in autoimmune skin disorders to counteract the local and systemic effects of coagulation activation.

Keywords:

Eosinophil, tissue factor, bullous pemphigoid, atopic dermatitis, psoriasis, dermatitis herpetiformis, inflammation, coagulation, ELISA, innate immunity

Affiliation:

Ospedale Maggiore Policlinico, Via Pace, 9, 20122 Milano, Italy.



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