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Memórias do Instituto Oswaldo Cruz

versão impressa ISSN 0074-0276versão On-line ISSN 1678-8060

Resumo

BENTES, Gentil Arthur et al. Using immunoglobulin Y as an alternative antibody for the detection of hepatitis A virus in frozen liver sections. Mem. Inst. Oswaldo Cruz [online]. 2015, vol.110, n.4, pp.577-579.  Epub 15-Maio-2015. ISSN 0074-0276.  http://dx.doi.org/10.1590/0074-02760140457.

An increasing amount of research has been conducted on immunoglobulin Y (IgY) because the use of IgY offers several advantages with respect to diagnostic testing, including its easy accessibility, low cost and translatability to large-scale production, in addition to the fact that it can be ethically produced. In a previous work, immunoglobulin was produced and purified from egg yolks (IgY) reactive to hepatitis A virus (HAV) antigens. In the present work, this anti-HAV-specific IgY was used in an indirect immunofluorescence assay to detect viral antigens in liver biopsies that were obtained from experimentally infected cynomolgus monkeys. Fields that were positive for HAV antigen were detected in liver sections using confocal microscopy. In conclusion, egg yolks from immunised hens may be a reliable source for antibody production, which can be employed for immunological studies.

Palavras-chave : immunoglobulin Y; hepatitis A virus; indirect immunofluorescence.

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