ORIGINAL ARTICLE: A Role for Mannose-Binding Lectin, a Component of the Innate Immune System in Pre-Eclampsia
Article first published online: 22 AUG 2008
© 2008 The Authors. Journal compilation © 2008 Blackwell Munksgaard. No claim to original US government works
American Journal of Reproductive Immunology
Volume 60, Issue 4, pages 333–345, October 2008
How to Cite
Than, N. G., Romero, R., Erez, O., Kusanovic, J. P., Tarca, A. L., Edwin, S. S., Kim, J.-S., Hassan, S. S., Espinoza, J., Mittal, P., Mazaki-Tovi, S., Friel, L., Gotsch, F., Vaisbuch, E., Camacho, N. and Papp, Z. (2008), ORIGINAL ARTICLE: A Role for Mannose-Binding Lectin, a Component of the Innate Immune System in Pre-Eclampsia. American Journal of Reproductive Immunology, 60: 333–345. doi: 10.1111/j.1600-0897.2008.00631.x
- Issue published online: 5 SEP 2008
- Article first published online: 22 AUG 2008
- Submitted March 21, 2008; accepted May 23, 2008.
- Maternal systemic inflammation;
- MBL genotypes;
- pattern-recognition receptor;
- single nucleotide polymorphism
Problem Mannose-binding lectin (MBL) is a pattern-recognition receptor that activates complement and modulates inflammation. Homozygosity for the most common allele of the MBL2 gene that is associated with high MBL serum concentrations is more prevalent among patients with pre-eclampsia. The objective of this study was to determine maternal plasma MBL concentrations in normal pregnant women and patients with pre-eclampsia.
Method of study This cross-sectional study included normal pregnant women (n = 187) and patients with pre-eclampsia (n = 99). Maternal plasma MBL concentrations were determined by ELISA.
Results Women with pre-eclampsia had a higher median maternal plasma MBL concentration than normal pregnant women. MBL concentration distribution curves were three-modal, the subintervals in normal pregnancy were low (<143.7), intermediate (143.7–1898.9) and high (>1898.9 ng/mL). The proportion of normal pregnant women was larger in the low subinterval, while the proportion of patients with pre-eclampsia was larger in the high subinterval (P = 0.02). Normal pregnant women in the high subinterval had a larger rate of placental underperfusion than those in the low and intermediate subintervals (P = 0.02).
Conclusions The median maternal plasma MBL concentration is elevated in patients with pre-eclampsia and a larger proportion of these patients are in the high subinterval than normal pregnant women, suggesting that this component of the innate immune system is involved in the mechanisms of disease in pre-eclampsia.