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A sensitive non-radioactive in situ hybridization method for the detection of chicken IgG γ-chain mRNA: a technique suitable for detecting of variety of mRNAs in tissue sections


We established a sensitive non-radioactive in situ hybridization (ISH) method for the detection of chicken IgG γ-chain mRNA in paraffin sections. RNA probes were transcribed in vitro fromcloned chicken IgG CH1 nucleotide sequences with SP6/T7 RNA polymerases in the presence of DIG-UTP. These probes were used for hybridization and were immunodetected using anti-DIG antibodies conjugated to horseradish peroxidase. The immunoreactive products were visualized with DAB-H2O2. IgG γ-chain mRNA-expressing cells were localized in both the spleen and oviductal tissues. This method demonstrated an excellent sensitivity since the ISH signal was clear and the background was negligible. We found that in the spleen IgG γ-chain mRNA-expressing cells were present mainly in the red pulp, whereas in the oviduct they appeared mainly in the mucosal stroma and not in the mucosal epithelium.


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Correspondence to Weiming Zheng or Yukinori Yoshimura.

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Published: May 14, 2001.

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Indexing terms

  • in situ hybridization
  • IgG γ-chain mRNA
  • chicken