Serum ANCA as Disease Biomarkers: Clinical Implications Beyond Vasculitis.
Clin Rev Allergy Immunol
; 63(2): 107-123, 2022 Oct.
Article
en En
| MEDLINE
| ID: mdl-34460071
ABSTRACT
Usually associated with autoimmune diseases, anti-neutrophil cytoplasmic antibodies are also detected in other conditions, such as infections, malignancies, and after intake of certain drugs. Even if the mechanisms of production and their pathogenic role have not been fully elucidated yet, ANCA are widely recognized as a clinically alarming finding due to their association with various disorders. While ANCA target several autoantigens, proteinase-3, and myeloperoxidase are the ones proved to be most frequently related to chronic inflammation and tissue damage in murine models. Albeit these autoantibodies could be present as an isolated observation without any implications, ANCA are frequently used in clinical practice to guide the diagnosis in a suspect of small vessel vasculitis. Conditions that should prompt the clinician to test ANCA status range from various forms of lung disease to renal or peripheral nervous system impairment. ANCA positivity in the presence of an autoimmune disease, especially rheumatoid arthritis, or connective tissue diseases, is frequently correlated with more clinical complications and treatment inefficacy, even in the absence of signs of vasculitis. For this reason, it has been postulated that ANCA could represent the final expression of an immune dysregulation rather than a pathogenic event responsible for organs damage. Recently, it has also been proposed that ANCA specificity (PR3 or MPO) could possibly define ANCA-associated vasculitides better than clinical phenotype. This review aims at summarizing the latest advancements in the field of ANCA study and clinical interpretation.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Anticuerpos Anticitoplasma de Neutrófilos
/
Vasculitis Asociada a Anticuerpos Citoplasmáticos Antineutrófilos
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Clin Rev Allergy Immunol
Asunto de la revista:
ALERGIA E IMUNOLOGIA
Año:
2022
Tipo del documento:
Article
País de afiliación:
Italia