Alelos del sistema principal de histocompatibilidad relacionados con la susceptibilidad al desarrollo de la arteritis de Takayasu / Alleles of the major histocompatibility system associated with susceptibility to the development of Takayasu's arteritis
Gac. méd. Méx
;
138(2): 177-183, mar.-abr. 2002.
Artículo
en Español
| LILACS
| ID: lil-333661
ABSTRACT
OBJECTIVE:
Since 1972, the relationship between HLA alleles and the susceptibility for Takayasu arteritis (TA) has been studied on different populations. Hence the results up to date are heterogeneous, the objective of the present review is to analyze the relationship between the presence of HLA alleles and the susceptibility for the development of TA considering the ethnic origin of the studied populations. MATERIAL ANDMETHODS:
We carried out a bibliographic review from clinical articles of case and controls studies on different populations on which the relationship between HLA alleles and the susceptibility for TA was studied, published since 1972 until February 2000.RESULTS:
We reviewed articles of studies on Asian, Arab, North-American and Mexican Mestizo populations. On Asian populations TA was associated with HLA-A31, -B52, -B39, -B5 and -DR2, on Arabs with HLA-A2, -A9, -B35 and -DR7, on North-Americans with HLA-DR4 and on Mexican Mestizo with HLA-B5, -B52 and -DR6. On the other hand, recent reports establish that several HLA-B alleles (HLA-B52 and HLA-B39) associated with the disease share some residues important on the antigen presentation.CONCLUSIONS:
Hence the heterogeneity of the results obtained up to date, it stands out the increase on HLA-B52 and HLA-DR4 reported on ethnically different populations. More recent data point the possible participation of an epitope located on the peptide-binding site of the HLA-B molecule (positions 63 and 67) that seems to be shared by several alleles associated with the disease. These residues might be participating on the presentation of an unknown antigen that would unchain the disease on the genetically susceptible individuals group.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Arteritis de Takayasu
/
Alelos
/
Complejo Mayor de Histocompatibilidad
Tipo de estudio:
Factores de riesgo
Límite:
Humanos
Idioma:
Español
Revista:
Gac. méd. Méx
Asunto de la revista:
Medicina
Año:
2002
Tipo del documento:
Artículo
País de afiliación:
México
Institución/País de afiliación:
Instituto Nacional de Cardiologia Ignacio Chaves/MX
/
Instituto Nacional de la Nutrición Salvador Zubirán/MX
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