Parenterally transmitted non-A, non-B hepatitis: virus-specific antibody response patterns in hepatitis C virus-infected chimpanzees.
Gastroenterology
; 99(4): 1054-60, 1990 Oct.
Article
en En
| MEDLINE
| ID: mdl-1697546
ABSTRACT
An established chimpanzee model of parenterally-transmitted non-A, non-B hepatitis was used to define virus-specific immune response patterns in acutely and persistently infected animals. Serial bleedings were obtained from 23 chimpanzees that had been experimentally infected with an isolate of hepatitis C virus, originally recovered from contaminated lots of factor VIII (antihemophilic) materials. Sera were assayed for the presence of antihepatitis C virus by a newly developed radioimmunoassay procedure that incorporated recombinant DNA-expressed viral antigen as a reagent. Twenty-one of 23 hepatitis C virus infected animals were shown to acquire antihepatitis C virus, most within 2-8 weeks after the major peak of alanine aminotransferase activity. All chimpanzees with biochemical, electron microscopic, and histological evidence of chronic disease clearly acquired antibody; 14 of 16 animals observed through the acute phase of disease were also shown to acquire antibody. A booster effect or anamnestic response was noted in two chimpanzees (one of which was negative for antihepatitis C virus following the acute phase of disease) after challenge with hepatitis C virus. Antihepatitis C virus was not neutralizing, because some animals with high levels of antibody were also shown to have high titers of circulating hepatitis C virus. The development and maintenance of anti-hepatitis C virus appears to reflect concomitant virus replication and high potential for infectivity.
Buscar en Google
Base de datos:
MEDLINE
Asunto principal:
Anticuerpos Antihepatitis
/
Hepatitis C
/
Hepatitis Viral Humana
/
Virus de Hepatitis
/
Antígenos Virales
Tipo de estudio:
Prognostic_studies
Límite:
Animals
Idioma:
En
Revista:
Gastroenterology
Año:
1990
Tipo del documento:
Article
País de afiliación:
Georgia