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Free Content Application of efficient and specific gene transfer systems and organ culture techniques for the elucidation of mechanisms of epithelial– mesenchymal interaction in the developing gut

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Epithelial–mesenchymal interactions are very important in the development of the vertebrate gut. In the avian embryonic stomach (proventriculus), expression of embryonic chick pepsinogen (ECPg) gene, which is specific to developing glandular cells in stomach epithelium, is regulated by mesenchymal influence. Molecular mechanisms of tissue-specific transcriptional regulation of the ECPg gene and the molecular nature of the mesenchymal signals were analyzed using a combination of the classic organ culture system and gene transfer strategies. In the present review, three methods for the introduction of DNA into tissues are described: lipofection, electroporation and retroviral infection, and characteristics of each system are discussed.
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Keywords: digestive tube; electroporation; epithelial-mesenchymal interaction; pepsinogen; retroviral vector; retrovirus

Document Type: Review Article

Affiliations: 1: Department of Biological Science, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minamiohsawa, Hachioji, Tokyo 192-0397 and 2: Department of Gene Regulation, Institute of Medical Science, University of Tokyo, 4-6-1 Shirokanedai, Minato-ku, Tokyo, 108-8639, Japan.

Publication date: 01 June 2000

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