PUBLICATION

Thyroid-stimulating hormone (TSH)-thyroid hormone (TH) signaling contributes to circadian regulation through repressing clock2/npas2 in zebrafish

Authors
Ji, C., Ou, Y., Yu, W., Lv, J., Zhang, F., Li, H., Gu, Z., Li, J., Zhong, Z., Wang, H.
ID
ZDB-PUB-230617-39
Date
2023
Source
Journal of genetics and genomics = Yi chuan xue bao   51(1): 61-74 (Journal)
Registered Authors
Ji, Cheng, Wang, Han, Zhang, Fanmiao, Zhong, Zhaomin
Keywords
TALEN, circadian rhythm, thyroid hormone, thyroid-stimulating hormone subunit β a (tshba), zebrafish
MeSH Terms
  • Adult
  • Animals
  • Congenital Hypothyroidism*
  • Growth Disorders
  • Humans
  • Thyrotropin*
  • Triiodothyronine/metabolism
  • Zebrafish/genetics
  • Zebrafish/metabolism
PubMed
37328030 Full text @ J. Genet. Genomics
Abstract
Thyroid-stimulating hormone (TSH) is important for the thyroid gland, development, growth, and metabolism. Defects in TSH production or the thyrotrope cells within the pituitary gland cause congenital hypothyroidism (CH), resulting in growth retardation and neurocognitive impairment. While human TSH is known to display rhythmicity, the molecular mechanisms underlying the circadian regulation of TSH and the effects of TSH-thyroid hormone (TH) signaling on the circadian clock remain elusive. Here we show that TSH, T4, T3, and tshba display rhythmicity in both larval and adult zebrafish and tshba is regulated directly by the circadian clock via both E'-box and D-box. Zebrafish tshba-/- mutants manifest congenital hypothyroidism, with the characteristics of low levels of T4 and T3 and growth retardation. Loss of tshba or overexpression of tshba alters the rhythmicity of locomotor activities and expression of core circadian clock genes and hypothalamic-pituitary-thyroid (HPT) axis-related genes. Furthermore, TSH-TH signaling regulates clock2/npas2 via the TRE in its promoter, and transcriptome analysis revealed extensive functions of Tshba in zebrafish. Together, our results demonstrate that zebrafish tshba is a direct target of the circadian clock and in turn plays critical roles in circadian regulation along with other functions.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping