Transcription profiling of human choriocarcinoma cells overexpressing STOX1 mimicks transcriptional alterations observed in preeclamptic placentas

ABSTRACT: Background; Mutations in STOX1 were proposed as causal for predisposing to preeclampsia, a hypertensive disorder originating from placental defects, affecting up to 10% of human pregnancies. However, after the first study published in 2005 three other groups have dismissed the polymorphism described in the first paper as a causal mutation. Methodology and Principal Findings; In the present study, we have developed a choriocarcinoma cell line overexpressing STOX1. This overexpression results in the transcriptional modification of 12.5% of the genes, some of them being direct targets as shown by chromatin immunoprecipitation. STOX1 overexpression correlates strongly and specifically with transcriptomic alterations in preeclamptic placentas (r=0.30, p=9.10-7). Numerous known key modulators of preeclampsia (such as Endoglin, Syncytin, human chrionic gonadotrophin-hCG-, and Glial Cell Missing Homolog -GCM1-) were modified in these transformed choriocarcinoma cells. Conclusions; Our results contribute to reconcile contradictory data about the involvement of STOX1 in preeclampsia. In addition, they strongly suggest that anomalies in STOX1 expression are associated with the onset of preeclampsia, thus indicating that this gene should be the target of future studies. Furthermore, our cellular model could constitute an invaluable resource for studying specific aspects of this human disease. Experiment Overall Design: Microarrays expression

ORGANISM(S): Homo sapiens

SUBMITTER: Daniel Vaiman 

PROVIDER: E-GEOD-13475 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress