Article
Pituitary NR4A1 is negatively regulated by thyroid hormone without direct binding of thyroid hormone receptors on the gene.
Molecular and cellular endocrinology - 5 Feb 2018
Okamura Takashi, Nakajima Yasuyo, Shibusawa Nobuyuki, Horiguchi Kazuhiko, Matsumoto Shunichi, Yamada Eijiro, Tomaru Takuya, Ishii Sumiyasu, Ozawa Atsushi, Ishizuka Takahiro, Hashimoto Koshi, Okada Shuichi, Satoh Tetsurou, Yamada Masanobu
Abstract excerpt
We previously reported that TRH stimulated pituitary TSHβ gene expression via an immediate increase in NR4A1 in thyrotrophs. We demonstrated that NR4A1 mRNA levels are regulated by thyroid hormone. Pituitary NR4A1 mRNA levels were decreased in mice injected with L-T4. NR4A1 promoter activity was increased by the overexpression of TRβs, and these increases were decreased by T3, and the -27∼+152 bp region was...
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