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In vitro human decidual endothelial cell thromboxane secretion in preeclampsia is not abnormal
E D Gallery1, J Rowe, S Campbell
1Department of Renal Medicine, Sydney University, Royal North Shore Hospital, St Leonards, NSW, Australia. eileeng@med.usyd.edu.au
Hypertension in Pregnancy
|December 10, 1999
Summary
Decidual endothelial cells from normal pregnancies secrete less thromboxane than control cells. This study found no difference in thromboxane secretion between normal and preeclamptic pregnancies.
Area of Science:
- Reproductive biology
- Vascular physiology
- Pregnancy complications
Background:
- Preeclampsia is associated with hypertension and vasoconstriction.
- Thromboxane is implicated in preeclampsia pathogenesis.
- Decidual endothelial cells play a role in pregnancy.
Purpose of the Study:
- To quantify thromboxane secretion by normal decidual endothelial cells.
- To investigate if thromboxane secretion is elevated in preeclampsia.
- To compare decidual endothelial cells with human umbilical vein endothelial cells.
Main Methods:
- Cultured decidual endothelial cells from normal (NDEC) and preeclamptic (PEDEC) pregnancies.
- Compared with human umbilical vein endothelial cells (HUVEC).
- Assessed thromboxane B2 generation following stimulation with LPS, TNF-alpha, and IL-1 beta.
Main Results:
- NDEC secreted significantly less thromboxane than HUVEC.
- NDEC showed a greater proportional response to IL-1 beta compared to HUVEC.
- No significant differences in thromboxane secretion were found between NDEC and PEDEC.
Conclusions:
- Decidual endothelial cell thromboxane secretion is lower than HUVEC.
- Responsiveness to stimuli differs quantitatively between cell types.
- No evidence suggests increased thromboxane secretion by decidual cells in preeclampsia.