Transthyretin-thyroid hormone internalization by trophoblasts

Abstract

Normal fetal neurological development depends on a regulated supply of maternal thyroid hormone (TH). We have previously demonstrated that transthyretin (TTR) a TH binding protein, is synthesized, secreted and internalized by trophoblast cells and may provide a route for the transfer of TH from mother to fetus. Our objective was to determine if a member of the low-density lipoprotein receptor family mediates TTR or TTR-TH internalization. TTR-TH internalization by JEG-3 cells is reduced in the presence of receptor associated protein (RAP) or albumin suggesting that TTR-TH is internalized through an LDL-receptor dependent endocytic process.

Authors Landers, K.; Li, H.; Subramaniam, VN; Mortimer, R. H.; Richard, K.
Journal PLACENTA
Pages 716-8
Volume 34
Date 1/08/2013
Grant ID
Funding Body
URL http://www.ncbi.nlm.nih.gov/pubmed/?term=10.1016/j.placenta.2013.05.005