Detection of Epstein-Barr virus DNA and HHV-6 DNA in tissue biopsies from patients with nasopharyngeal carcinoma by polymerase chain reaction.
Southeast Asian J Trop Med Public Health
;
1993 Sep; 24(3): 455-60
Article
Dans Anglais
| IMSEAR
| ID: sea-30722
ABSTRACT
A total of 34 tissue biopsies were collected from nasopharyngeal carcinoma (NPC) patients and 5 controls with non-NPC. Extracted DNA from tissue biopsies were analyzed for presence of specific gene sequences to EBV type A and type B, and HHV-6 by polymerase chain reaction (PCR). The different sequences of EBV type A and B were parts from the highly divergent forms of the EBV nuclear antigen 2 (EBNA 2). The PCR amplified products for EBNA 2A and EBNA 2B were 115 and 119 base pairs respectively whereas that of HHV-6 DNA was 776 base pairs. The results demonstrated that EBV DNA was detected in 32 of 34 cases (94.1%) 28 (82.3%) with type A, 2 (5.9%) with type B, and 2 (5.9%) with both types. EBV DNA of type A could be detected 1 (20%) of 5 controls. HHV-6 DNA was in 5 of 34 samples (14.7%) whereas HHV-6 DNA was not detectable in biopsy tissues from controls. The results show that in the NPC patient group, A type of EBV is predominant. Detection of HHV-6 DNA in patients group only might be resulted from reactivation of a latent infection or association with EBV-induction of NPC.
Texte intégral:
Disponible
Indice:
IMSEAR (Asie du Sud-Est)
Sujet Principal:
Biopsie
/
Humains
/
ADN viral
/
Données de séquences moléculaires
/
Séquence nucléotidique
/
Carcinomes
/
Études cas-témoins
/
Tumeurs du rhinopharynx
/
Technique de Southern
/
Réaction de polymérisation en chaîne
Type d'étude:
Etude diagnostique
/
Étude observationnelle
/
Facteurs de risque
langue:
Anglais
Texte intégral:
Southeast Asian J Trop Med Public Health
Année:
1993
Type:
Article
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