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Hes1 is required for the development of the superior cervical ganglion of sympathetic trunk and the carotid body.
MedLine Citation:
PMID:  22689348     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Hes1 gene represses the expression of proneural bHLH factor Mash1, which is essential for the differentiation of the sympathetic ganglia and carotid body glomus cells. The sympathetic ganglia, carotid body and common carotid artery in Wnt1-Cre/R26R double transgenic mice were intensely labeled by X-gal staining, i.e., the neural crest origin. The deficiency of Hes1 caused severe hypoplasia of the superior cervical ganglion (SCG). At embryonic day (E)17.5 - E18.5, the volume of the SCG in Hes1 null mutants was reduced to 26.4% of the value in wild-type mice. In 4 out of 30 cases (13.3%), the common carotid artery derived from the third arch artery was absent in the null mutants, and the carotid body was not formed. When the common carotid artery was retained, the organ grew in the wall of the third arch artery and glomus cell precursors were provided from the SCG in the null mutants as well as in wild types. However, the volume of carotid body in the null mutants was only 52.5% of the value in wild types at E17.5 - E18.5. These results suggest that Hes1 plays a critical role in regulating the development of neural crest derivatives in the mouse cervical region.
Authors:
Yoko Kameda; Takayoshi Saitoh; Noriko Nemoto; Tokio Katoh; Sachiko Iseki
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-6-11
Journal Detail:
Title:  Developmental dynamics : an official publication of the American Association of Anatomists     Volume:  -     ISSN:  1097-0177     ISO Abbreviation:  -     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-6-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9201927     Medline TA:  Dev Dyn     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Wiley Periodicals, Inc.
Affiliation:
Department of Anatomy, Kitasato University School of Medicine, Sagamihara, Kanagawa 252-0374, Japan. kameda@med.kitasato-u.ac.jp.
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