Journal
SCIENCE
Volume 352, Issue 6293, Pages 1570-1573Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.aaf2729
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Funding
- NIH [DE024157, HD037105, K99DE024232]
- Pew Fellows Program in Biomedical Sciences
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Neural crest populations along the embryonic body axis of vertebrates differ in developmental potential and fate, so that only the cranial neural crest can contribute to the craniofacial skeleton in vivo. We explored the regulatory program that imbues the cranial crest with its specialized features. Using axial-level specific enhancers to isolate and perform genome-wide profiling of the cranial versus trunk neural crest in chick embryos, we identified and characterized regulatory relationships between a set of cranial-specific transcription factors. Introducing components of this circuit into neural crest cells of the trunk alters their identity and endows these cells with the ability to give rise to chondroblasts in vivo. Our results demonstrate that gene regulatory circuits that support the formation of particular neural crest derivatives may be used to reprogram specific neural crest-derived cell types.
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