Pre-eclampsia is associated with elevated CXCL12 levels in placental syncytiotrophoblasts and maternal blood

Autor: Susan J. Fisher, Alexandra P. Hess, Christian Heiss, A. Schanz, Marion Blumenstein, Michael T. McMaster, Robyn A. North, Virginia D. Winn, J.S. Kruessel
Rok vydání: 2011
Předmět:
Zdroj: European Journal of Obstetrics & Gynecology and Reproductive Biology. 157:32-37
ISSN: 0301-2115
DOI: 10.1016/j.ejogrb.2011.02.023
Popis: Objectives Placental derived vasculogenic/angiogenic substances in maternal blood are dysregulated in pre-eclampsia. We hypothesized that CXCL12, a chemokine with vasculogenic actions, is amongst such molecules. Study design CXCL12, CXCL16, CXCR4, and CXCR6 immunolocalization in placental tissue was analyzed in pre-eclampsia (n = 8) in comparison to controls (n = 8). CXCL12, measured by ELISA in blood, in women diagnosed with pre-eclampsia (n = 14) and prior to the development of pre-eclampsia (at 20 weeks’ gestation, n = 20) was compared with CXCL12 concentrations in gestation-matched, healthy control subjects (n = 34). Results In placental tissue, syncytiotrophoblast staining for CXCL12 was increased in pre-eclampsia. Maternal serum CXCL12 was increased in pre-eclampsia [2000 (SD 402) vs 1484 (SD 261) pg/ml, P = 0.01] but not in plasma obtained at 20 weeks of gestation prior to the onset of pre-eclampsia [1183 (SD 336) vs 1036 (SD 144) pg/ml, P = 0.09]. Conclusion Our data suggest that the syncytiotrophoblast contributes to a pre-eclampsia-associated increase in CXCL12 levels in maternal blood. These findings support the hypothesis that an imbalance of angiogenic factors contributes to the pathogenesis of pre-eclampsia.
Databáze: OpenAIRE