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Thyroid hormone receptor beta is required for thyrotrpin regulation and thyroid hormone production.

ABSTRACT: Thyroid hormone receptor beta is required for thyrotrpin regulation and thyroid hormone production.

PROVIDER: PRJNA703005 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR13745273.fastq.gz	Fastqsanger.gz
	SRR13745274.fastq.gz	Fastqsanger.gz
	SRR13745275.fastq.gz	Fastqsanger.gz
	SRR13745276.fastq.gz	Fastqsanger.gz
	SRR13745277.fastq.gz	Fastqsanger.gz

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Thyroid hormone receptor beta is required for thyrotrpin regulation and thyroid hormone production.

Project description:Thyroid hormone receptor beta (THRB) is post-translationally modified by small ubiquitin-like modifier (SUMO). To investigate the biological role of THRB sumoylation, we generated a mouse model with a mutation that disrupts sumoylation at lysine 146 (K146Q). The THRB K146Q mutant mice had normal serum thyroxine (T4), markedly elevated serum thyrotropin (TSH) (81-fold above control), and enlargement of both the pituitary and the thyroid gland. The marked elevation in TSH, despite a normal serum T4 concentration, indicated blunted feedback regulation of TSH. TH profuction was 10-fold lower (per mg of thyroid tissue) in mutant mice compared to Wt mice.

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Thyroid hormone receptor alpha is required for thyroid hormone-dependent neural cell proliferation during tadpole metamorphosis

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Thyroid hormone receptor alpha is required for thyroid hormone-dependent neural cell proliferation during tadpole metamorphosis

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Glis3 plays a crucial role in thyroid hormone production

Project description:The serum hormone levels including T3 and T4 were dramatically decreased in Glis3-null mice due to reduced production of thyroid hormones in thyroid. Gene expression profile and EdU incorporation analysis between WT and Glis3-null mice showed that the cell proliferation was greatly reduced in Glis3-null thyroid. Goitergenic diet (low iodine diet; LID) dramatically enhanced serum TSH levels in both WT and Glis3-null mice, however thyroid goiter was observed in WT mice but not in Glis3-null mice. A subset of genes associated with thyroid hormone production including Pendrin (Slc26a4), Nis (Na+/I– symporter, Slc5a5), Duoxa2 (dualoxidase A2), Tpo (thyroperoxidase), and Dio1 (Deiodinase1) was significantly induced in WT but not in Glis3-null mice by LID feeding.

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Project description:chip on chip to identify thyroid hormone receptor responsive gene

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Thyroid hormone receptor a in skeletal muscle is essential for thyroid thermogenesis

Project description:Thyroid hormones are important for homeostatic control of energy metabolism and body temperature. Although skeletal muscle is considered an important site for thyroid action, the contribution of thyroid hormone receptor signaling, in muscle, to whole-body energy metabolism and body temperature has not been resolved. Here, we show that thyroid hormone-induced increase in energy expenditure requires thyroid hormone receptor alpha 1 (TRa1) in skeletal muscle, but that thyroid hormone induced elevation in body temperature is independent of muscle-TRa1. In slow-twitch soleus muscle, ablation of TRa1 leads to an altered fiber type composition toward a more oxidative phenotype, which, however, does not influence running capacity or motivation to voluntary running. RNA-sequencing of soleus muscle from WT mice and TRaHSACre mice revealed differentiated transcriptional regulation of genes associated with muscle thermogenesis, such as sarcolipin and UCP3, thus providing molecular clues pertaining to the mechanistic underpinnings of TRa1-linked control of whole-body metabolic rate. Together, this work establishes a fundamental role for skeletal muscle in thyroid hormone-stimulated increase in whole-body energy expenditure.

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Thyroid hormone receptor β sumoylation is required for thyrotropin regulation and thyroid hormone production.

Project description:Thyroid hormone receptor β (THRB) is posttranslationally modified by small ubiquitin-like modifier (SUMO). We generated a mouse model with a mutation that disrupted sumoylation at lysine 146 (K146Q) and resulted in desumoylated THRB as the predominant form in tissues. The THRB K146Q mutant mice had normal serum thyroxine (T4), markedly elevated serum thyrotropin-stimulating hormone (TSH; 81-fold above control), and enlargement of both the pituitary and the thyroid gland. The marked elevation in TSH, despite a normal serum T4, indicated blunted feedback regulation of TSH. The THRB K146Q mutation altered the recruitment of transcription factors to the TSHβ gene promoter, compared with WT, in hyperthyroidism and hypothyroidism. Thyroid hormone content (T4, T3, and rT3) in the thyroid gland of the THRB K146Q mice was 10-fold lower (per gram tissue) than control, despite normal TSH bioactivity. The expression of thyroglobulin and dual oxidase 2 genes in the thyroid was reduced and associated with modifications of cAMP response element-binding protein DNA binding and cofactor interactions in the presence of the desumoylated THRB. Therefore, thyroid hormone production had both TSH-dependent and TSH-independent components. We conclude that THRB sumoylation at K146 was required for normal TSH feedback regulation and TH synthesis in the thyroid gland, by a TSH-independent pathway.

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Thyroid Hormone Receptor Beta Induces a Tumor Suppressive Program in Anaplastic Thyroid Cancer

Project description:Thyroid Hormone Receptor Beta Induces a Tumor Suppressive Program in Anaplastic Thyroid Cancer

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