Acquired cyclic neutropenia associated with cocaine-induced anti-neutrophil cytoplasmic antibodies binding to human neutrophil elastase

Anti-Cardiolipin and Anti-Neutrophil Cytoplasmic Antibodies in Iranian Patients with Behcet's Disease

Background: The prevalence of anti-Neutrophil Cytoplasmic Antibodies (ANCAs) and anti-Cardiolipin Antibodies (anti-CL Ab) in Behcet’s Disease (BD) and also their roles in vascular involvement is controversial. Objective: To assess the prevalence of ANCAs and anti-CL Ab as well as their correlations with clinical manifestations in Iranian patients with BD. Methods: In this case/control study, th...

[Anti-neutrophil cytoplasmic antibodies (ANCA) associated vasculitides].

The anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitides are a group of uncommon diseases characterised by inflammatory cell infiltration and necrosis of blood vessel walls. ANCA there has been considerable progress towards understanding their pathogenesis. This results in endothelial activation with increased transmigration and adherence of neutrophils to vessel walls. Specific ...

Neutrophil elastase in cyclic and severe congenital neutropenia.

Mutations in ELA2 encoding the neutrophil granule protease, neutrophil elastase (NE), are the major cause of the 2 main forms of hereditary neutropenia, cyclic neutropenia and severe congenital neutropenia (SCN). Genetic evaluation of other forms of neutropenia in humans and model organisms has helped to illuminate the role of NE. A canine form of cyclic neutropenia corresponds to human Hermans...

Anti-neutrophil cytoplasmic antibodies stimulate release of neutrophil microparticles.

The mechanisms by which anti-neutrophil cytoplasmic antibodies (ANCAs) may contribute to the pathogenesis of ANCA-associated vasculitis are not well understood. In this study, both polyclonal ANCAs isolated from patients and chimeric proteinase 3-ANCA induced the release of neutrophil microparticles from primed neutrophils. These microparticles expressed a variety of markers, including the ANCA...

Anti-neutrophil cytoplasmic antibodies and vasculitis.