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Genes that characterize T3-predominant Graves' thyroid tissues.

Authors: Matsumoto, C  Ito, M  Yamada, H  Yamakawa, N  Yoshida, H  Date, A  Watanabe, M  Hidaka, Y  Iwatani, Y  Miyauchi, A  Takano, T 
Citation: Matsumoto C, etal., Eur J Endocrinol. 2013 Jan 17;168(2):137-44. doi: 10.1530/EJE-12-0507. Print 2013 Feb.
Pubmed: (View Article at PubMed) PMID:23109646
DOI: Full-text: DOI:10.1530/EJE-12-0507

OBJECTIVE: 3,5,3'-Triiodothyronine (T(3))-predominant Graves' disease is characterized by the increasing volume of thyroid goiter resulting in poor prognosis. Although type 1 and type 2 iodothyronine deiodinases (DIO1 and DIO2 respectively) are known to be overexpressed in the thyroid tissues of T(3)-predominant Graves' disease, the pathogenesis of this disease is still unclear. The aim of our study is to identify genes that characterize T(3)-predominant Graves' disease tissue in order to clarify the molecular mechanism of this disease. DESIGN AND METHODS: mRNAs from two thyroid tissues of both typical T(3)-predominant and common-type Graves' disease were analyzed with DNA microarrays with probes for 28 869 genes. Genes identified to be differentially expressed between the two groups were further analyzed in the second and third screenings using 70 Graves' thyroid tissues by real-time quantitative RT-PCR. RESULTS: Twenty-three candidate genes were selected as being differentially expressed in the first screening with microarrays. Among these, seven genes, leucine-rich repeat neuronal 1 (LRRN1), bone morphogenetic protein 8a (BMP8A), N-cadherin (CDH2), phosphodiesterase 1A (PDE1A), creatine kinase mitochondrial 2 (CKMT2), integrin beta-3 (ITGB3), and protein tyrosine phosphatase non-receptor type 4 (PTPN4), were confirmed to be differentially expressed in DIO1 or DIO2 over- and underexpressing Graves' tissues. CONCLUSIONS: These genes are related to the characteristics of T(3)-predominant Graves' disease, such as high titer level of serum anti-TSH receptor antibody, high free T(3) to free thyroxine ratio, and a large goiter size. They might play a role in the pathogenesis of T(3)-predominant Graves' disease.

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RGD Object Information
RGD ID: 8693341
Created: 2014-07-11
Species: All species
Last Modified: 2014-07-11
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.