Cited by 45Pancreatic function and diabetesBirth, Development, and HealthPregnancy and preeclampsia studies

Placental Insufficiency Decreases Pancreatic Vascularity and Disrupts Hepatocyte Growth Factor Signaling in the Pancreatic Islet Endothelial Cell in Fetal Sheep

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Rozance, Paul J., Anderson, Miranda, Martinez, Marina, Fahy, Anna, Macko, Antoni R., Kailey, Jenai, Seedorf, Gregory J., Abman, Steven H. +2 more·2015·Diabetes

Abstract

Hepatocyte growth factor (HGF) and vascular endothelial growth factor A (VEGFA) are paracrine hormones that mediate communication between pancreatic islet endothelial cells (ECs) and β-cells. Our objective was to determine the impact of intrauterine growth restriction (IUGR) on pancreatic vascularity and paracrine signaling between the EC and β-cell. Vessel density was less in IUGR pancreata than in controls. HGF concentrations were also lower in islet EC-conditioned media (ECCM) from IUGR, and islets incubated with control islet ECCM responded by increasing insulin content, which was absent with IUGR ECCM. The effect of ECCM on islet insulin content was blocked with an inhibitory anti-HGF antibody. The HGF receptor was not different between control and IUGR islets, but VEGFA was lower and the high-affinity VEGF receptor was higher in IUGR islets and ECs, respectively. These findings show that paracrine actions from ECs increase islet insulin content, and in IUGR ECs, secretion of HGF was diminished. Given the potential feed-forward regulation of β-cell VEGFA and islet EC HGF, these two growth factors are highly integrated in normal pancreatic islet development, and this regulation is decreased in IUGR fetuses, resulting in lower pancreatic islet insulin concentrations and insulin secretion.

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  • A growth-restricted fetus has fewer insulin-producing beta cells and reduced vascularization in the pancreas, and compromised structure and maturation of the brain, lungs, and liver.

    “In addition, the pancreas has fewer insulin-producing beta cells and reduced vascularization (159, 340, 473), and the structure and maturation of the brain (142), lungs (358, 359, 424, 460) and liver (209, 474) are compromised.”

    From Placental Origins of Chronic Disease (2016) · cites this paper as [473]

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Authors
Rozance, P. J., Anderson, M., Martinez, M., Fahy, A., Macko, A. R., Kailey, J., Seedorf, G. J., Abman, S. H., Hay, W. W., & Limesand, S. W.
Affiliations
  • University of Colorado Anschutz (US)
  • University of Arizona (US)
  • School of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, AZ
Corresponding author
Rozance, Paul J.
Venue
Diabetes
Published
2014-09-22
Volume
64
Issue
2
Pages
555-564
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2148719389
Cited by
45
References
43
Citations by year
2025: 1 · 2024: 2 · 2023: 3 · 2022: 2 · 2021: 3 · 2020: 5 · 2019: 3 · 2018: 8 · 2017: 7 · 2016: 8 · 2015: 3
FWCI
5.95
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institute of Diabetes and Digestive and Kidney Diseases (R01 DK088139)
  • National Institute of Child Health and Human Development (K08 HD060688)
Topics
  • Health Sciences › Medicine › Surgery › Pancreatic function and diabetes
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
placental insufficiency, fetal growth restriction, hepatocyte growth factor, VEGF-A, fetal sheep, pancreatic islet development, VEGF receptors
MeSH terms
Animals, Female, Fetal Growth Retardation, Fetus, Islets of Langerhans, Pancreas, Placental Insufficiency, Pregnancy, Sheep, Signal Transduction, Hepatocyte Growth Factor, Endothelial Cells

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