2018年1月1日
Regulation of continuous but complex expression pattern of Six1 during early sensory development
Developmental Dynamics
- ,
- ,
- 巻
- 247
- 号
- 1
- 開始ページ
- 250
- 終了ページ
- 261
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/dvdy.24603
- 出版者・発行元
- John Wiley and Sons Inc.
Background: In vertebrates, cranial sensory placodes give rise to neurosensory and endocrine structures, such as the olfactory epithelium, inner ear, and anterior pituitary. We report here the establishment of a transgenic mouse line that expresses Cre recombinase under the control of Six1-21, a major placodal enhancer of the homeobox gene Six1. Results: In the new Cre-expressing line, mSix1-21-NLSCre, the earliest Cre-mediated recombination was induced at embryonic day 8.5 in the region overlapping with the otic-epibranchial progenitor domain (OEPD), a transient, common precursor domain for the otic and epibranchial placodes. Recombination was later observed in the OEPD-derived structures (the entire inner ear and the VIIth–Xth cranial sensory ganglia), olfactory epithelium, anterior pituitary, pharyngeal ectoderm and pouches. Other Six1-positive structures, such as salivary/lacrimal glands and limb buds, were also positive for recombination. Moreover, comparison with another mouse line expressing Cre under the control of the sensory neuron enhancer, Six1-8, indicated that the continuous and complex expression pattern of Six1 during sensory organ formation is pieced together by separate enhancers. Conclusions: mSix1-21-NLSCre has several unique characteristics to make it suitable for analysis of cell lineage and gene function in sensory placodes as well as nonplacodal Six1-positive structures. Developmental Dynamics 247:250–261, 2018. © 2017 Wiley Periodicals, Inc.
- ID情報
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- DOI : 10.1002/dvdy.24603
- ISSN : 1097-0177
- ISSN : 1058-8388
- PubMed ID : 29106072
- SCOPUS ID : 85036554558