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A Protocol for Analyzing Hepatitis C Virus Replication
Published on: June 26, 2014
Transmisión de la hepatitis C por inoculación intrahepática con ARN transcrito
A A Kolykhalov1, E V Agapov, K J Blight
1Department of Molecular Microbiology, Washington University School of Medicine, 660 South Euclid Avenue, St. Louis, MO 63110-1093, USA.
Science (New York, N.Y.)
|July 25, 1997
Resumen
Los investigadores crearon clones del virus de la hepatitis C infecciosa (VHC), lo que demuestra que el ARN del VHC solo causa enfermedades. Este avance permite estudios genéticos de la replicación del VHC y las afecciones hepáticas asociadas como la cirrosis y el cáncer.
Área de la Ciencia:
- Virología Virología.
- Hepatología Hepatología.
- Biología Molecular Biología Molecular
Sus antecedentes:
- El virus de la hepatitis C (VHC) infecta crónicamente a más del 1% de la población mundial.
- La infección por el VHC conduce a hepatitis aguda y crónica, cirrosis y carcinoma hepatocelular.
- La falta de clones moleculares infecciosos obstaculizó los estudios genéticos de la replicación del VHC.
Objetivo del estudio:
- Para construir clones de ADN complementario funcional de longitud completa del genoma del VHC.
- Para demostrar la infecciosidad y patogenicidad de las transcripciones de ARN derivadas de estos clones.
- Para definir la estructura de un genoma funcional del VHC y confirmar la suficiencia del VHC para causar enfermedades.
Principales métodos:
- Construcción de clones de ADN complementario funcional de longitud completa del genoma del VHC.
- Transcripción in vitro del ARN de los clones de ADNc construidos.
- La inoculación intrahepática directa de chimpancés con las transcripciones de ARN sintetizadas.
Principales resultados:
- Las transcripciones de ARN de los clones construidos eran infecciosas.
- Los chimpancés inoculados desarrollaron la enfermedad, confirmando la patogenicidad.
- Este estudio definió la estructura de un ARN funcional del genoma del VHC.
Conclusiones:
- Los clones de ADN complementario del VHC pueden generar ARN viral infeccioso.
- El ARN del VHC por sí solo es suficiente para causar enfermedad in vivo.
- Este trabajo proporciona una herramienta crucial para los estudios genéticos de la replicación del VHC y la patogénesis.
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