期刊
DEVELOPMENTAL BIOLOGY
卷 477, 期 -, 页码 205-218出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ydbio.2021.05.019
关键词
Scales; Squamation; Zebrafish; Thyroid hormone; Postembryonic development; Growth; Patterning
资金
- NIH [R35 GM122471]
This study demonstrates that thyroid hormone regulates the rate of post-embryonic dermal development in zebrafish by interacting with nuclear hormone receptors, resulting in a well-ordered array of correctly proportioned scales. It extends our understanding of thyroid hormone actions on skin by providing in-vivo evidence that thyroid hormone regulates multiple aspects of dermal development.
Thyroid hormone is a key regulator of post-embryonic vertebrate development. Skin is a biomedically important thyroid hormone target organ, but the cellular and molecular mechanisms underlying skin pathologies associated with thyroid dysfunction remain obscure. The transparent skin of zebrafish is an accessible model system for studying vertebrate skin development. During post-embryonic development of the zebrafish, scales emerge in the skin from a hexagonally patterned array of dermal papillae, like other vertebrate skin appendages such as feathers and hair follicles. We show here that thyroid hormone regulates the rate of post-embryonic dermal development through interaction with nuclear hormone receptors. This couples skin development with body growth to generate a well ordered array of correctly proportioned scales. This work extends our knowledge of thyroid hormone actions on skin by providing in-vivo evidence that thyroid hormone regulates multiple aspects of dermal development.
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