Apoptosis and NET formation in the pathogenesis of SLE.
Autoimmunity
; 45(8): 597-601, 2012 Dec.
Article
en En
| MEDLINE
| ID: mdl-22913420
ABSTRACT
Systemic Lupus Erythematosus is an autoimmune disease characterized by the formation of anti-nuclear autoantibodies, particularly anti-chromatin. Although the aetiology of the disease has not yet been fully elucidated, several mechanisms have been proposed to be involved. Due to an aberrant apoptosis or decreased removal of apoptotic cells, apoptotic blebs containing chromatin are released. During apoptosis, chromatin is modified that increases its immunogenicity. Myeloid dendritic cells (myDC) can take up apoptotic blebs and stimulate autoreactive T helper cells, and subsequently the formation of autoantibodies by autoreactive B cells. Immune complexes formed by anti-chromatin autoantibodies and modified chromatin deposit on basal membranes, and incite a local inflammation, but can also stimulate plasmacytoid dendritic cells to produce IFN-α. In addition to apoptotic blebs, neutrophil extracellular traps released by dying neutrophils, in a process called NETosis, may serve as a source of autoantigens as well. In this review, we describe the role of both apoptosis and NETosis in the pathogenesis of SLE, and show how both processes may interact with each other.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Cromatina
/
Anticuerpos Antinucleares
/
Apoptosis
/
Lupus Eritematoso Sistémico
/
Neutrófilos
Tipo de estudio:
Etiology_studies
Límite:
Humans
Idioma:
En
Revista:
Autoimmunity
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2012
Tipo del documento:
Article
País de afiliación:
Países Bajos
Pais de publicación:
ENGLAND
/
ESCOCIA
/
GB
/
GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
/
SCOTLAND
/
UK
/
UNITED KINGDOM