Generation and characterization of gsualpha:EGFP transgenic zebrafish for evaluating endocrine-disrupting effects
- Cheng, X., Chen, X., Jin, X., He, J., Yin, Z.
- Toxicology and applied pharmacology 278(1): 78-84 (Journal)
- Registered Authors
- He, Jiangyan, Yin, Zhan
- Endocrine disrupting, Pituitary hormone, Transgenic zebrafish, gsuα expression, gsuα promoter
- MeSH Terms
- Animals, Genetically Modified
- Endocrine Disruptors/toxicity*
- Gene Expression Regulation, Developmental/drug effects
- Genes, Reporter*
- Glycoprotein Hormones, alpha Subunit/genetics*
- Green Fluorescent Proteins/biosynthesis
- Green Fluorescent Proteins/genetics*
- Pituitary Gland/drug effects*
- Pituitary Gland/embryology
- Pituitary Gland/metabolism
- Promoter Regions, Genetic/drug effects*
- Toxicity Tests
- 24747804 Full text @ Tox. App. Pharmacol.
Cheng, X., Chen, X., Jin, X., He, J., Yin, Z. (2014) Generation and characterization of gsualpha:EGFP transgenic zebrafish for evaluating endocrine-disrupting effects. Toxicology and applied pharmacology. 278(1):78-84.
The glycoprotein subunit &alpha (gsuα) gene encodes the shared α subunit of the three pituitary heterodimeric glycoprotein hormones: follicle-stimulating hormone β (Fshβ), luteinizing hormone β (Lhβ) and thyroid stimulating hormone β (Tshβ). In our current study, we identified and characterized the promoter region of zebrafish gsuα and generated a stable gsuα:EGFP transgenic line, which recapitulated the endogenous gsuα expression in the early developing pituitary gland. A relatively conserved regulatory element set is presented in the promoter regions of zebrafish and three other known mammalian gsuα promoters. Our results also demonstrated that the expression patterns of the gsuα:EGFP transgene were all identical to those expression patterns of the endogenous gsuα expression in the pituitary tissue when our transgenic fish were treated with various endocrine chemicals, including forskolin (FSK), SP600125, trichostatin A (TSA), KClO4, dexamethasone (Dex), β-estradiol and progesterone. Thus, this gsuα:EGFP transgenic fish reporter line provides another valuable tool for investigating the lineage development of gsuα-expressing gonadotrophins and the coordinated regulation of various glycoprotein hormone subunit genes. These reporter fish can serve as a novel platform to perform screenings of endocrine-disrupting chemicals (EDCs) in vivo as well.
Genes / Markers
Mutation and Transgenics
Human Disease / Model Data
Sequence Targeting Reagents
Engineered Foreign Genes
Errata and Notes