A Novel Transgenic Model to Study Thyroid Axis Activity in Early Life Stage Medaka.

ABSTRACT: Identifying endocrine disrupting chemicals in order to limit their usage is a priority and required according to the European Regulation. There are no Organization for Economic Co-operation and Development (OECD) test guidelines based on fish available for the detection of Thyroid axis Active Chemicals (TACs). This study aimed to fill this gap by developing an assay at eleuthero-embryonic life stages in a novel medaka (Oryzias latipes) transgenic line. This transgenic line expresses green fluorescent protein (GFP) in thyrocytes, under the control of the medaka thyroglobulin gene promoter. The fluorescence expressed in the thyrocytes is inversely proportional to the thyroid axis activity. When exposed for 72 h to activators (triiodothyronine (T₃) and thyroxine (T

SUBMITTER: Pesce E 

PROVIDER: S-EPMC10786150 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature