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The sequence of the beta-subunit of human chorionic gonadotropin (hCGβ) varies depending on whether hCGβ is encoded by type I or type II genes. Type II genes are upregulated in trophoblast and cancer but hCGβ can be detected in the serum of nonpregnant women and healthy individuals. We aimed to determine whether monoclonal antibody (mAb) FBT11-II specifically detects hCGβ encoded by type II genes...
The placenta provides critical transport functions between the maternal and fetal circulations during intrauterine development. Formation of this interface is controlled by nuclear transcription factors including homeobox genes. Here we summarize current knowledge regarding the expression and function of homeobox genes in the placenta. We also describe the identification of target transcription factors...
The syncytiotrophoblast layer plays a major role throughout pregnancy, since it is the site of numerous placental functions, including ion and nutrient exchange and the synthesis of steroid and peptide hormones required for fetal growth and development. Inadequate formation and regeneration of this tissue contributes to several pathologies of pregnancy such as intrauterine growth restriction and preeclampsia,...
DLX3, a member of the large homeobox gene family of transcription factors, is necessary for normal placentation. Targeted deletion of dlx3 in mouse resulted in embryonic death due to placental failure. This study demonstrates the presence of DLX3 mRNA expression in human first trimester and term placental tissue, cultured trophoblast-like cell lines and in isolated primary villous and extravillous...
During human placental development trophoblast follows two differentiation pathways: the extravillous (EVCT) and the villous cytotrophoblasts (VCT) that display different phenotypes and functions. It is well established that human chorionic gonadotropin hormone (hCG) is mainly secreted by the endocrine VCT (syncytiotrophoblast) into the maternal compartment and stimulates the formation of the syncytiotrophoblast...
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