Motaharehsadat Heydarian, Prajakta Oak, Xin Zhang, Nona Kamgari, Alida Kindt, Markus Koschlig, Tina Pritzke, Erika Gonzalez-Rodriguez, Kai Förster, Rory E Morty, Friederike Häfner, Christoph Hübener, Andreas W Flemmer, Ali Oender Yildirim, Deepti Sudheendra, Xuefei Tian, Agnese Petrera, Holger Kirsten, Peter Ahnert, Nick Morrell, Tushar J Desai, Jennifer Sucre, Edda Spiekerkoetter, Anne Hilgendorff
INTRODUCTION: Chronic lung disease, that is, bronchopulmonary dysplasia (BPD) is the most common complication in preterm infants and develops as a consequence of the misguided formation of the gas-exchange area undergoing prenatal and postnatal injury. Subsequent vascular disease and its progression into pulmonary arterial hypertension critically determines long-term outcome in the BPD infant but lacks identification of early, disease-defining changes. METHODS: We link impaired bone morphogenetic protein (BMP) signalling to the earliest onset of vascular pathology in the human preterm lung and delineate the specific effects of the most prevalent prenatal and postnatal clinical risk factors for lung injury mimicking clinically relevant conditions in a multilayered animal model using wild-type and transgenic neonatal mice...
December 2022: Thorax