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Freshly isolated hepatocyte transplantation in acetaminophen-induced hepatotoxicity model in rats / Transplante de hepatócitos recém-isolados em um modelo de hepatotoxicidade induzida por acetaminofeno em ratos
Rodrigues, Daniela; Silveira, Themis Reverbel Da; Matte, Ursula; The Study Group On Experimental Hepatology.
  • Rodrigues, Daniela; Hospital de Clínicas de Porto Alegre. Experimental Hepatology and Gastroenterology Laboratory.
  • Silveira, Themis Reverbel Da; Hospital de Clínicas de Porto Alegre. Experimental Hepatology and Gastroenterology Laboratory.
  • Matte, Ursula; Hospital de Clínicas de Porto Alegre. Experimental Hepatology and Gastroenterology Laboratory.
Arq. gastroenterol ; 49(4): 291-295, Oct.-Dec. 2012. graf, tab
Article in English | LILACS | ID: lil-660309
ABSTRACT
CONTEXT Hepatocyte transplantation is an attractive therapeutic modality for liver disease as an alternative for orthotopic liver transplantation.

OBJECTIVE:

The aim of the current study was to investigate the feasibility of freshly isolated rat hepatocyte transplantation in acetaminophen-induced hepatotoxicity model.

METHODS:

Hepatocytes were isolated from male Wistar rats and transplanted 24 hours after acetaminophen administration in female recipients. Female rats received either 1x10(7) hepatocytes or phosphate buffered saline through the portal vein or into the spleen and were sacrificed after 48 hours.

RESULTS:

Alanine aminotransferase levels measured within the experiment did not differ between groups at any time point. Molecular analysis and histology showed presence of hepatocytes in liver of transplanted animals injected either through portal vein or spleen.

CONCLUSION:

These data demonstrate the feasibility and efficacy of hepatocyte transplantation in the liver or spleen in a mild acetaminophen-induced hepatotoxicity model.
RESUMO

CONTEXTO:

O transplante de hepatócitos é uma modalidade terapêutica atrativa para doenças hepáticas como alternativa ao transplante hepático ortotópico.

OBJETIVO:

Investigar a factibilidade do uso de hepatócitos frescos isolados de ratos em um modelo de hepatotoxicidade induzida por paracetamol.

MÉTODOS:

Hepatócitos foram isolados de ratos Wistar machos e transplantados 24 horas após a administração de paracetamol em receptores fêmeas. As ratas receberam 1x10(7) hepatócitos ou tampão salina fosfato pela veia porta ou no baço e foram sacrificadas após 48 horas.

RESULTADOS:

Os níveis de alanina aminotransferase medidos durante o experimento não diferiram entre os grupos em nenhum momento. Análises moleculares e histológicas demonstraram a presença de hepatócitos no fígado dos animais transplantados pelo baço ou pela veia porta.

CONCLUSÃO:

Os dados indicam a factibilidade e eficácia do transplante de hepatócitos no fígado ou baço em um modelo de hepatotoxicidade leve induzida por paracetamol.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Analgesics, Non-Narcotic / Hepatocytes / Chemical and Drug Induced Liver Injury / Acetaminophen Limits: Animals Language: English Journal: Arq. gastroenterol Journal subject: Gastroenterology Year: 2012 Type: Article Affiliation country: Brazil

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Full text: Available Index: LILACS (Americas) Main subject: Analgesics, Non-Narcotic / Hepatocytes / Chemical and Drug Induced Liver Injury / Acetaminophen Limits: Animals Language: English Journal: Arq. gastroenterol Journal subject: Gastroenterology Year: 2012 Type: Article Affiliation country: Brazil