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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Retinoic acid induces a tissue-specific deletion in the expression domain of Otx2.

The expression domain of Otx2, a gene essential for the development of the fore- and midbrain, has previously been shown to be affected by exposure to all-trans-retinoic acid (AT-RA). However, morphological abnormalities of the fore- and midbrain induced by exposure of early somite-stage embryos to AT-RA were not associated with abnormal Otx2 expression. To identify abnormal expression of developmental genes induced by exposure at early somite-stages, we performed a fine analysis of the expression domains of Otx2, Otx1, Emx2, and Pax-6 by combining in situ hybridization (ISH) with computer-assisted superpositions and three-dimensional reconstructions of these expression domains. No alteration in the relative location of the caudal boundaries of the expression domains of these genes was observed. The only abnormality was a deletion of the most cranial portion of the neural folds (NF).[1]

References

  1. Retinoic acid induces a tissue-specific deletion in the expression domain of Otx2. Clotman, F., Van Maele-Fabry, G., Picard, J.J. Neurotoxicology and teratology. (1997) [Pubmed]
 
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