STOX2 but not STOX1 is differentially expressed in decidua from preeclamptic women: Data from the Second Nord-Trøndelag Health Study

Variation in the Storkhead box-1 (STOX1) gene has previously been associated with pre-eclampsia. In this study, we assess candidate single nucleotide polymorphisms (SNPs) in STOX1 in an independent population cohort of pre-eclamptic (n = 1.139) and non-pre-eclamptic (n = 2.269) women (the HUNT2 stud...

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Main Authors: Fenstad, M., Johnson, M., Løset, M., Mundal, S., Roten, L., Eide, I., Bjørge, L., Sande, R., Johansson, A., Dyer, T., Forsmo, S., Blangero, J., Moses, Eric, Austgulen, R.
Format: Journal Article
Published: 2010
Online Access:http://hdl.handle.net/20.500.11937/10699
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Summary:Variation in the Storkhead box-1 (STOX1) gene has previously been associated with pre-eclampsia. In this study, we assess candidate single nucleotide polymorphisms (SNPs) in STOX1 in an independent population cohort of pre-eclamptic (n = 1.139) and non-pre-eclamptic (n = 2.269) women (the HUNT2 study). We also compare gene expression levels of STOX1 and its paralogue, Storkhead box-2 (STOX2) in decidual tissue from pregnancies complicated by pre-eclampsia and/or fetal growth restriction (FGR) (n = 40) to expression levels in decidual tissue from uncomplicated pregnancies (n = 59). We cannot confirm association of the candidate SNPs to pre-eclampsia (P > 0.05). For STOX1, no differential gene expression was observed in any of the case groups, whereas STOX2 showed significantly lower expression in deciduas from pregnancies complicated by both pre-eclampsia and FGR as compared with controls (P = 0.01). We further report a strong correlation between transcriptional alterations reported previously in choriocarcinoma cells over expressing STOX1A and alterations observed in decidual tissue of pre-eclamptic women with FGR. © The Author 2010. Published by Oxford University Press on behalf of the European Society of Human Reproduction and Embryology.