Direct detection of hepatitis B virus gene integrated in the Alexander cell using fluorescence in situ polymerase chain reaction.
Cancer Lett
; 116(2): 259-64, 1997 Jun 24.
Article
en En
| MEDLINE
| ID: mdl-9215872
ABSTRACT
Prolonged infection of hepatitis B virus (HBV) is reported to cause hepatocellular carcinoma (HCC) via liver cirrhosis. However, it is still unknown whether the HCC is induced by the HBV DNA integration or by inflammatory stimulation during the phase of liver cirrhosis. The aim of this study is to determine the intracellular or intranuclear distribution of HBV DNA with a highly sensitive assay. Here we directly detected the integration of HBV DNA by fluorescence in situ polymerase chain reaction (FISPCR). Since FISPCR products directly incorporate rhodamine-4-dUTP, the nucleus of Alexander cells integrated with HBV gene reacted with the HBV primers emits obvious fluorescence. The fluorescence values which were measured with an imaging analyzer show a significant difference between Alexander cells as compared to the controls. In conclusion, the target sequences of HBV were specifically amplified as fluorescent DNA after the present FISPCR procedure. This method could provide a novel and simple strategy for determining the quantitative role of viral DNA integration in oncogenesis.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
ADN Viral
/
Virus de la Hepatitis B
/
Reacción en Cadena de la Polimerasa
/
Integración Viral
/
Carcinoma Hepatocelular
/
Neoplasias Hepáticas
Tipo de estudio:
Diagnostic_studies
Límite:
Humans
Idioma:
En
Revista:
Cancer Lett
Año:
1997
Tipo del documento:
Article
País de afiliación:
Japón