The role of KIR2DL3/HLA-C*0802 in Brazilian patients with rheumatoid vasculitis
Clinics
;
70(6): 408-412, 06/2015. tab
Artículo
en Inglés
| LILACS
| ID: lil-749793
ABSTRACT
OBJECTIVES:
Rheumatoid arthritis is a polygenically controlled systemic autoimmune disease. Rheumatoid vasculitis is an important extra-articular phenotype of rheumatoid arthritis that can result in deep cutaneous ulcers. The objective of this study was to establish a correlation between the frequency of major histocompatibility complex class I/II alleles and killer immunoglobulin-like receptor genotypes in patients with cutaneous rheumatoid vasculitis.METHODS:
Using the Scott & Bacon 1984 criteria to diagnose rheumatoid vasculitis and after excluding any other causes such as diabetes, atherosclerosis, adverse drug reactions, infection, and smoking, patients who met the criteria were selected. All of the selected rheumatoid vasculitis patients presented deep cutaneous ulcers. Identification of the major histocompatibility complex class I/II and killer immunoglobulin-like receptor genotypes was performed by polymerase chain reaction assays of samples collected from the 23 rheumatoid vasculitis patients as well as from 80 controls (40 non-rheumatoid vasculitis RA control patients and 40 healthy volunteers).RESULTS:
An association between the presence of the HLA-DRB1*1402 and HLA-DRB1*0101 alleles and cutaneous lesions in rheumatoid vasculitis patients and a correlation between the inhibitor KIR2DL3 and the HLA-C*0802 ligand in rheumatoid vasculitis patients were found.CONCLUSION:
An association was found between the presence of the HLA-DRB1*1402 and HLA-DRB1*0101 alleles and the development of cutaneous lesions in rheumatoid vasculitis patients. Additionally, the HLA-C*0802 ligand protects these individuals from developing cutaneous lesions. .
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Antígenos HLA-C
/
Enfermedades Cutáneas Vasculares
/
Receptores KIR
/
Vasculitis Reumatoide
/
Complejo Mayor de Histocompatibilidad
Tipo de estudio:
Estudio pronóstico
Límite:
Adolescente
/
Adulto
/
Anciano
/
Femenino
/
Humanos
/
Masculino
País/Región como asunto:
America del Sur
/
Brasil
Idioma:
Inglés
Revista:
Clinics
Asunto de la revista:
Medicina
Año:
2015
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
University of Campinas (UNICAMP)/BR
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