Increased circulating levels of tissue kallikrein in systemic sclerosis correlate with microvascular involvement

Autor: Del Rosso, A, Distler, O, Milia, A, Emanueli, C, Ibba-Manneschi, L, Guiducci, S, Conforti, M, Generini, S, Pignone, A, Gay, S, Madeddu, P, Matucci-Cerinic, M
Rok vydání: 2004
Předmět:
Zdroj: Annals of the Rheumatic Diseases. 64:382-387
ISSN: 0003-4967
DOI: 10.1136/ard.2004.023382
Popis: Background: In systemic sclerosis (SSc) the lack of an angiogenic response to hypoxia may be due to inappropriate synthesis of angiogenic and angiostatic factors. Tissue kallikrein (t-kallikrein), regulating the kallikrein-kinin system and acting on the microcirculation, is a potent angiogenic agent, and kallistatin is its natural inhibitor. Objective: To evaluate, in patients with SSc, t-kallikrein and kallistatin levels and their correlation with clinical features and measures of microvascular involvement. Patients and methods: Serum levels of t-kallikrein and kallistatin (ELISA) and t-kallikrein skin expression (immunohistochemistry) were studied in patients with SSc, and evaluated for subset (dSSc or lSSc), clinical and immunological features, and microvascular involvement (ulcers, telangiectasias, nailfold videocapillaroscopy). Results: Circulating levels of t-kallikrein were higher in SSc than in controls (p
Databáze: OpenAIRE