Vanessa Candilera1, Carlo Bouchè2, Jurgen Schleef3, Federica Pederiva3. 1. a University of Trieste , Trieste , Italy . 2. b Department of Gynecology , and. 3. c Pediatric Surgery, Institute for Maternal and Child Health - IRCCS "Burlo Garofolo" , Trieste , Italy.
Abstract
AIM: Respiratory failure secondary to pulmonary hypoplasia is the main cause of death in congenital diaphragmatic hernia (CDH). Lung growth is regulated by growth factors (GFs), whose imbalances are reported in pathological conditions. We measured amniotic fluid levels of GFs, regulating lung development, in pregnancies with CDH and compared them with normal gestations. METHODS: Amniotic fluid was collected at amniocentesis and delivery from 4 women carrying fetuses with CDH and 12 with normal pregnancy. GFs were isolated and quantified. Same GFs were measured in lung biopsies collected during autopsy of three newborns dead of CDH. RESULTS: Impairment expression of lung GFs in the amniotic fluid of CDH pregnancies in comparison with normal was found. Fibroblast growth factor 10 (FGF10), fibroblast growth factor 7, vascular endothelial growth factor and transforming growth factor β (TGFβ) were decreased at amniocentesis, while platelet-derived growth factor (PDGF) increased. While FGF10 and PDGF tended to normalize at delivery, epidermal growth factor increased and TGFβ was still decreased. Same GFs were similarly expressed in both lungs of babies dead of CDH. CONCLUSION: Anomalies in lung GFs expression of embryos and fetuses with CDH can be detected by measuring their levels in the amniotic fluid during pregnancy. Further investigation would help to correlate prenatal expression of GFs and clinical outcome of babies with CDH after birth.
AIM: Respiratory failure secondary to pulmonary hypoplasia is the main cause of death in congenital diaphragmatic hernia (CDH). Lung growth is regulated by growth factors (GFs), whose imbalances are reported in pathological conditions. We measured amniotic fluid levels of GFs, regulating lung development, in pregnancies with CDH and compared them with normal gestations. METHODS: Amniotic fluid was collected at amniocentesis and delivery from 4 women carrying fetuses with CDH and 12 with normal pregnancy. GFs were isolated and quantified. Same GFs were measured in lung biopsies collected during autopsy of three newborns dead of CDH. RESULTS: Impairment expression of lung GFs in the amniotic fluid of CDH pregnancies in comparison with normal was found. Fibroblast growth factor 10 (FGF10), fibroblast growth factor 7, vascular endothelial growth factor and transforming growth factor β (TGFβ) were decreased at amniocentesis, while platelet-derived growth factor (PDGF) increased. While FGF10 and PDGF tended to normalize at delivery, epidermal growth factor increased and TGFβ was still decreased. Same GFs were similarly expressed in both lungs of babies dead of CDH. CONCLUSION: Anomalies in lung GFs expression of embryos and fetuses with CDH can be detected by measuring their levels in the amniotic fluid during pregnancy. Further investigation would help to correlate prenatal expression of GFs and clinical outcome of babies with CDH after birth.
Authors: Alice E Stanton; Katharine Goodwin; Aswin Sundarakrishnan; Jacob M Jaslove; Jason P Gleghorn; Amira L Pavlovich; Celeste M Nelson Journal: Front Cell Dev Biol Date: 2021-12-01
Authors: Thomas Salaets; Margo Aertgeerts; André Gie; Janne Vignero; Derek de Winter; Yannick Regin; Julio Jimenez; Greetje Vande Velde; Karel Allegaert; Jan Deprest; Jaan Toelen Journal: Respir Res Date: 2020-02-21