HLA-A, -B, -C, and -DRB1 allele frequencies in Cuban individuals with antecedents of dengue 2 disease: advantages of the Cuban population for HLA studies of dengue virus infection.
Dengue virus infection has emerged as one of the most important arthropod-borne diseases. In some dengue-infected individual, the disease progresses to its severe, life-threatening form, dengue hemorrhagic fever (DHF). Host genetic factors may be relevant and predispose some individuals to the severe dengue disease. The unique history of dengue outbreaks in Cuba is extremely advantageous for genetic studies of dengue disease resistance or susceptibility. Consequently, samples collected from 120 healthy individuals that developed dengue fever (DF) and DHF during the 1997 dengue 2 outbreak in the Santiago de Cuba municipality were HLA genotyped using polymerase chain reaction-sequence-specific primers. Polymorphism at the human leukocyte antigen (HLA) class I loci was significantly associated with DHF disease susceptibility, but polymorphism in the HLA-DRB1 was associated with protection. Amino acid peptides present in the poly-protein of the dengue 2 Jamaica strain, which are able to bind to the HLA class I and class II allotypes associated with susceptibility to or protection against the dengue clinical disease, respectively, were predicted using the BIMAS and SYFPEITHI predictive algorithms of peptide/MHC interaction.
Sierra
Beatriz
B
Institute of Tropical Medicine Pedro Kourí, WHO Collaborator Centre for Viral Diseases, Havana, Cuba. siebet@ipk.sld.cu
Alegre
Roberto
R
Pérez
Ana B
AB
García
Gissel
G
Sturn-Ramirez
Katharina
K
Obasanjo
Olugbenga
O
Aguirre
Eglys
E
Alvarez
Mayling
M
Rodriguez-Roche
Rosmari
R
Valdés
Luis
L
Kanki
Phyllis
P
Guzmán
María G
MG
D000328:Adult; D003462:Cuba / Q000453:epidemiology; D003715:Dengue / Q000453:epidemiology / Q000235:genetics; D003716:Dengue Virus / Q000276:immunology*; D005260:Female; D005787:Gene Frequency; D015234:HLA-A Antigens / Q000235:genetics* / Q000276:immunology; D015235:HLA-B Antigens / Q000235:genetics* / Q000276:immunology; D015236:HLA-C Antigens / Q000235:genetics* / Q000276:immunology; D006684:HLA-DR Antigens / Q000235:genetics* / Q000276:immunology; D059811:HLA-DRB1 Chains; D006801:Humans; D008297:Male; D008875:Middle Aged
D015234:HLA-A Antigens; D015235:HLA-B Antigens; D015236:HLA-C Antigens; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains