RT Journal Article SR Electronic T1 Human Herpesvirus Type 8 Genotypes in Iatrogenic, Classic and AIDS-associated Kaposi's Sarcoma from Greece JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 1597 OP 1602 VO 24 IS 3A A1 M. GAZOULI A1 I. PAPACONSTANTINOU A1 G. ZAVOS A1 V. METAXA-MARIATOU A1 G. NASIOULAS A1 J. BOLETIS A1 P. ARAPADONI-DADIOTI A1 K. GIASLAKIOTIS A1 A. ZOGRAFIDIS A1 A. KOSTAKIS YR 2004 UL http://ar.iiarjournals.org/content/24/3A/1597.abstract AB Background: Kaposi's sarcoma-associated herpesvirus (KSHV)/human herpesvirus 8 (HHV-8) is consistently found in almost all observed Kaposi's sarcomas (KS), whether AIDS-associated, iatrogenic or classic. To our knowledge no data are available on the genetic polymorphism of HHV-8 from Greece. We report the study of 15 renal transplant recipients with KS, 5 with AIDS-associated KS, 11 with classic KS and 60 healthy individuals from Greece. Materials and Methods: Polymerase chain reaction (PCR) was carried out on DNA extracted from peripheral-blood mononuclear cells (PBMC) or KS cutaneous biopsies, using specific primers for the HHV-8, KS330 fragment from ORF-26 (233 bp) and the highly variable region (VR1) from ORF-K1 (363 bp). Results: HHV-8 DNA was detected in 30 out of 31 (97%) KS cases, regardless of their clinico-pathological subtype and in 10 out of 60 (16.7%) healthy individuals. Sequencing of the ORF26 fragment demonstrated that the 40 HHV-8 strains were of the A and C sub-types. Furthermore, sequencing of the ORF-K1 showed that these HHV-8 strains of Greek origin were of the A1, A4, C1 or C3 sub-type. Conclusion: Our findings imply a possible link of the C3 subtype of HHV-8 in renal transplant-related KS cases (iatrogenic KS) in Greece, a link of the A4 subtype in AIDS-associated KS cases and a potential involvement of the A1 subtype in Greek classic KS incidences, as HHV-8 strains among healthy individual tested belong to the C1, C3 or A1 subtypes. Copyright© 2004 International Institute of Anticancer Research (Dr. John G. Delinassios), All rights reserved