Endocrine Abstracts

Maternal thyroid hormones (THs) are important for fetoplacental development. We have previously reported lower fetal circulating concentration of THs in severe intrauterine growth restriction (IUGR) compared to gestationally-matched normal fetuses. The villous placental expression of TH receptors (TRs) and the TH transporter MCT8 is increased, whilst MCT10 expression is decreased, with severe IUGR.Objective: To assess the TH responsiveness of human cytot...

Thyroid hormones (TH) are important for the development of the fetus and placenta. Monocarboxylate transporter 8 (MCT8) is a potent plasma membrane TH transporter, present in the human placenta from 6 weeks of gestation. Its expression increases significantly with advancing gestational age. We postulate that MCT8 plays an important role in human placental development.Objective: To assess the effects of altered MCT8 expression on the survival, syncytialis...

Pituitary tumor transforming gene binding factor (PBF) is a relatively uncharacterized gene implicated in endocrine neoplasia. Given the presence of putative oestrogen response elements (ERE) in its promoter, we assessed PBF regulation by oestrogen. PBF mRNA expression was induced maximally at 48 h by 20 nM diethylstilbestrol in ERalpha-positive MCF-7 cells (2.1±0.1-fold, P<0.001, N=6). PBF protein expression levels were also significantly up-regulated b...