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Aggregated transthyretin is specifically packaged into placental nano-vesicles in preeclampsia.


ABSTRACT: In preeclampsia, the serum levels of transthyretin, a carrier protein for thyroxine, are elevated. Transthyretin isolated from preeclamptic serum is also aggregated and can induce preeclampsia-like symptoms in pregnant IL10-/- mice. Using western blotting, immunofluorescence, ELISA and qRT-PCR, we investigated the production of transthyretin by preeclamptic placentae and whether transthyretin is carried into the maternal circulation via placental extracellular vesicles. Both total and aggregated transthyretin were present in higher levels in preeclamptic placentae compared to normotensive placentae (p??0.05, n?=?8), however in preeclampsia, a significant proportion is vesicle-associated (~48% vs 0%). Increased levels of aggregated transthyretin were specifically associated to preeclamptic nano-vesicles (p?

SUBMITTER: Tong M 

PROVIDER: S-EPMC5532246 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Aggregated transthyretin is specifically packaged into placental nano-vesicles in preeclampsia.

Tong Mancy M   Cheng Shi-Bin SB   Chen Qi Q   DeSousa Joana J   Stone Peter R PR   James Joanna L JL   Chamley Lawrence W LW   Sharma Surendra S  

Scientific reports 20170727 1


In preeclampsia, the serum levels of transthyretin, a carrier protein for thyroxine, are elevated. Transthyretin isolated from preeclamptic serum is also aggregated and can induce preeclampsia-like symptoms in pregnant IL10<sup>-/-</sup> mice. Using western blotting, immunofluorescence, ELISA and qRT-PCR, we investigated the production of transthyretin by preeclamptic placentae and whether transthyretin is carried into the maternal circulation via placental extracellular vesicles. Both total and  ...[more]

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