Transcriptomic landscape of hyperthyroidism in mice overexpressing thyroid-stimulating hormone.

ABSTRACT: Activation of thyroid-stimulating hormone receptor (TSHR) fundamentally leads to hyperthyroidism. To elucidate TSHR signaling, we conducted transcriptome analyses for hyperthyroid mice that we generated by overexpressing TSH. TSH overexpression drastically changed their thyroid transcriptome. In particular, enrichment analyses identified the cell cycle, phosphatidylinositol 3-kinase/Akt pathway, and Ras-related protein 1 pathway as possibly associated with goiter development. Regarding hyperthyroidism, Slc26a4 was exclusively upregulated with TSH overexpression among genes crucial to thyroid hormone secretion. To verify its significance, we overexpressed TSH in Slc26a4 knockout mice. TSH overexpression caused hyperthyroidism in Slc26a4 knockout mice, equivalent to that

SUBMITTER: Yamauchi I 

PROVIDER: S-EPMC11730581 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature