Cited by 4,101Pregnancy and preeclampsia studiesNeurological Complications and SyndromesAngiogenesis and VEGF in Cancer

Excess placental soluble fms-like tyrosine kinase 1 (sFlt1) may contribute to endothelial dysfunction, hypertension, and proteinuria in preeclampsia

Open access
Maynard, Sharon E., Min, Jiang-Yong, Merchan, Jaime, Lim, Kee-Hak, Li, Jianyi, Mondal, Susanta, Libermann, Towia A., Morgan, James P. +5 more·2003·Journal of Clinical Investigation

Abstract

Preeclampsia, a syndrome affecting 5% of pregnancies, causes substantial maternal and fetal morbidity and mortality. The pathophysiology of preeclampsia remains largely unknown. It has been hypothesized that placental ischemia is an early event, leading to placental production of a soluble factor or factors that cause maternal endothelial dysfunction, resulting in the clinical findings of hypertension, proteinuria, and edema. Here, we confirm that placental soluble fms-like tyrosine kinase 1 (sFlt1), an antagonist of VEGF and placental growth factor (PlGF), is upregulated in preeclampsia, leading to increased systemic levels of sFlt1 that fall after delivery. We demonstrate that increased circulating sFlt1 in patients with preeclampsia is associated with decreased circulating levels of free VEGF and PlGF, resulting in endothelial dysfunction in vitro that can be rescued by exogenous VEGF and PlGF. Additionally, VEGF and PlGF cause microvascular relaxation of rat renal arterioles in vitro that is blocked by sFlt1. Finally, administration of sFlt1 to pregnant rats induces hypertension, proteinuria, and glomerular endotheliosis, the classic lesion of preeclampsia. These observations suggest that excess circulating sFlt1 contributes to the pathogenesis of preeclampsia.

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  • This persistent inflammatory cascade promotes systemic insulin resistance and endothelial dysfunction, directly predisposing patients to gestational diabetes and hypertensive disorders.

    “This persistent inflammatory cascade promotes systemic insulin resistance and endothelial dysfunction, directly predisposing patients to gestational diabetes and hypertensive disorders [13,15,16].”

    From Trimester-Specific Bioelectrical Impedance Reference Curves in Physiological Pregnancy: Mapping Maternal Body Composition and Hydration Trajectories (2026) · cites this paper as [15]

    The Introduction links excess placental sFlt1 to endothelial dysfunction and hypertension in preeclampsia, and the summary (p. 654) says it contributes to preeclamptic hypertension. These passages do not support the attributed inflammatory cascade, systemic insulin resistance, or predisposition to gestational diabetes; the mechanism described is antagonism of VEGF and PlGF. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • If sVEGFR-1 is administered to rats using an adenovirus vector, the animals develop hypertension, proteinuria, and glomerular endotheliosis.

    “For example, if sVEGFR-1 is administered to rats using an adenovirus vector, the animals develop hypertension, proteinuria, and glomerular endotheliosis(180).”

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  1. Yang, J.C., et al. 2002. A randomized double-blind placebo controlled trial of bevacizumab (anti-VEGF antibody) demonstrating a prolon- gation in time to progression in patients with metastatic renal cancer: ASCO meeting abstract. Proc. Am. Soc. Clin. Oncol. 21:A15 (Abstr.).

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Authors
Maynard, S. E., Min, J.-Y., Merchan, J., Lim, K.-H., Li, J., Mondal, S., Libermann, T. A., Morgan, J. P., Sellke, F. W., Stillman, I. E., Epstein, F. H., Sukhatme, V. P., & Karumanchi, S. A.
Affiliations
  • Beth Israel Deaconess Medical Center (US)
  • Harvard University (US)
Corresponding author
Karumanchi, S. Ananth
Venue
Journal of Clinical Investigation
Published
2003-03-01
Volume
111
Issue
5
Pages
649-658
ISSN
0021-9738 (ISSN-L)
OpenAlex
W2143180984
Cited by
4,101
References
51
Citations by year
2026: 157 · 2025: 126 · 2024: 169 · 2023: 181 · 2022: 190 · 2021: 217 · 2020: 177 · 2019: 195 · 2018: 218 · 2017: 182 · 2016: 202 · 2015: 194 · 2014: 226 · 2013: 215 · 2012: 207
FWCI
130.35
Type
journal article
Language
en
Open access
Locations
  • Journal of Clinical Investigation (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Society of Nephrology
  • Pfizer
  • American Society of Clinical Oncology
  • Massachusetts Institute of Technology
  • National Institutes of Health
  • National Institute of Diabetes and Digestive and Kidney Diseases (U24DK058739)
Topics
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
  • Health Sciences › Medicine › Psychiatry and Mental health › Neurological Complications and Syndromes
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
Keywords
preeclampsia, soluble fms-like tyrosine kinase-1, endothelial dysfunction, vascular endothelial growth factor, placental growth factor, placental ischemia, hypertension, proteinuria, glomerular endotheliosis
MeSH terms
Placenta Growth Factor, Endothelium, Vascular, Enzyme-Linked Immunosorbent Assay, Female, Humans, Hypertension, Kidney, Lymphokines, Pre-Eclampsia, Pregnancy, Pregnancy Proteins, Proteinuria, Endothelial Growth Factors, Neovascularization, Physiologic, Intercellular Signaling Peptides and Proteins, Vascular Endothelial Growth Factor Receptor-1, Vascular Endothelial Growth Factors, Vascular Endothelial Growth Factor A

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