Diversity of human herpesvirus 8 genotypes in patients with AIDS and non-AIDS associated Kaposi's sarcoma, Castleman's disease and primary effusion lymphoma in Argentina

• Autores: Pérez, Celeste Luján; Tous, Mónica I
• Año de publicación: 2017
• Idioma: inglés
• Tipo de recurso: artículo
• Fuente: Journal of Medical Virology 2017; 89(11):2020-2028
• Materia: VIH; Herpesvirus Humano 8; Variación Genética; Síndrome de Inmunodeficiencia Adquirida; Adulto; Anciano; Argentina; Enfermedad de Castleman; ADN Viral; Evolución Molecular; Femenino; Genotipo; Humanos; Linfoma de Efusión Primaria; Masculino; Persona de Mediana Edad; Filogenia; Reacción en Cadena de la Polimerasa; Saliva; Sarcoma de Kaposi; Donantes de Tejidos
• Institución: Administración Nacional de Laboratorios e Institutos de Salud "Dr. Carlos G. Malbrán"

Fil: Pérez, Celeste Luján. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas; Argentina.
Fil: Tous, Mónica I. ANLIS Dr.C.G.Malbrán. Instituto Nacional de Enfermedades Infecciosas; Argentina.
HHV-8 genotypes are distributed heterogeneously worldwide. The variable K1 gene and the conserved ORF26E region serve to genotype. The aim of the study was to characterize HHV-8 isolates from patients with AIDS, classical, and iatrogenic KS, primary effusion lymphoma and Castleman's disease and one organ donor from Argentina by analysis of ORFK1 and ORF26E regions. DNA was extracted from fresh or paraffin embedded biopsies, blood, and saliva samples and submitted to HHV-8 PCR. Phylogenetic analyses of ORFK1 showed that subtypes C (C1, C2, and C3), B1 and A (A1, A2, and A3) were present in 70.8%, 16.7%, and 12.5% of cases, respectively. Analyses of ORF26E fragment revealed that most strains (45.8%) were subtype A/C while the remaining fall into K, J, B2, R, and D subtypes. Linkage between ORFK1-ORF26E subtypes corresponded to reported relationships, except for one strain that clustered with B1 (K1 African) and D (ORF26E Asian-Pacific) subtypes. This research reveals predominance of subtype C, a broad spectrum of HHV-8 genotypes and reports the first isolation of the African B genotype in Argentina.