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Decrease in lipid levels of syncytiotrophoblast micro-particles reduced their potential to inhibit endothelial cell proliferation

Gupta, A. K. and Holzgreve, W. and Hahn, S.. (2008) Decrease in lipid levels of syncytiotrophoblast micro-particles reduced their potential to inhibit endothelial cell proliferation. Archives of gynecology and obstetrics, Vol. 277. pp. 115-119.

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Official URL: http://edoc.unibas.ch/dok/A5846959

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Abstract

BACKGROUND: Preeclampsia is characterized by damage to the maternal endothelium that has been suggested to be mediated in part by elevated shedding of inflammatory placental syncytiotrophoblast micro-particles (STBM) into the maternal circulation. Previously, we have shown that STBM, prepared by three different methods: mechanical dissection, in vitro placental explants culture and perfusion of placenta, can inhibit endothelial cell proliferation. Only mechanically prepared STBM induced apoptosis in the endothelial cells. Now, we have examined lipid levels in the three STBM preparations and their differential responses on endothelial cells. METHODS: We examined the lipid levels in the three STBM preparations using thin layer chromatography. Furthermore, the effects of reduced lipid levels in the three STBM preparations using the pharmacological agent methyl-beta-cyclodextrin were examined on endothelial cell proliferation and apoptosis. RESULTS: Among the three STBM preparations, mechanical STBM contained highest levels of lipids. The reduction in lipid levels in mechanical STBM reduced their potential to inhibit human umbilical vein endothelial cells (HUVEC) proliferation and blocked their potential to induce apoptosis. No similar effect was observed following lipid reduction in the two other STBM preparations. CONCLUSIONS: As it has been suggested that mechanically derived STBM may more closely resemble placental micro-particles generated in preeclampsia, our data suggest that lipid content may play a role in the anti-endothelial defects present in this disease.
Faculties and Departments:03 Faculty of Medicine > Departement Biomedizin > Department of Biomedicine, University Hospital Basel > Prenatal Medicine (Hahn)
03 Faculty of Medicine > Bereich Spezialfächer (Klinik) > Gynäkologie und Geburtshilfe > Gynäkologie (Heinzelmann)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Spezialfächer (Klinik) > Gynäkologie und Geburtshilfe > Gynäkologie (Heinzelmann)
UniBasel Contributors:Hahn, Sinuhe and Holzgreve, Wolfgang
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Publisher:Springer
ISSN:0932-0067
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:07 Dec 2012 12:59
Deposited On:08 Jun 2012 06:30

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