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Updated: Aug 11, 2025

Isolation of Pulmonary Artery Smooth Muscle Cells from Neonatal Mice
Published on: October 19, 2013
Vascular and pulmonary effects of ibuprofen on neonatal lung development
Xueyu Chen1, Dongshan Han1, Xuan Wang1
1Laboratory of Neonatology, Department of Neonatology, Affiliated Shenzhen Maternity and Child Healthcare Hospital, The First School of Clinical Medicine, Southern Medical University, Shenzhen, China.
Insights
Ibuprofen, used for premature infants, may harm neonatal lung development by inhibiting blood vessel growth. However, it also reduces inflammation and structural damage in experimental bronchopulmonary dysplasia (BPD).
Area of Science:
- Neonatal physiology and pharmacology
- Pulmonary medicine and developmental biology
- Endothelial cell biology and angiogenesis
Background:
- Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to close patent ductus arteriosus (PDA) in premature infants.
- NSAID use in neonates may negatively impact lung development, potentially causing bronchopulmonary dysplasia (BPD).
Purpose of the Study:
- To investigate ibuprofen's effects on angiogenesis in human umbilical cord vein endothelial cells (HUVECs).
- To evaluate the therapeutic potential of ibuprofen in a rat model of hyperoxia-induced experimental BPD.
Main Methods:
- Assessed ibuprofen's impact on HUVEC angiogenesis, including tube formation, migration, and cell proliferation.
- Administered daily subcutaneous ibuprofen (50 mg/kg) to neonatal Wistar rats with experimental BPD.
- Evaluated lung histopathology, growth, survival, and mRNA expression in treated rat pups.
Main Results:
- Ibuprofen inhibited angiogenesis in HUVECs by impeding the cell cycle and promoting apoptosis.
- In neonatal rats, ibuprofen reduced pulmonary vessel density but attenuated experimental BPD.
- Beneficial effects in rats included reduced lung inflammation and structural abnormalities like alveolar enlargement and arteriolar wall thickening.
Conclusions:
- Ibuprofen exhibits dual effects on neonatal lung development: it impairs angiogenesis but offers benefits for alveolarization and inflammation.
- Caution is advised when considering ibuprofen for premature infants with BPD due to potential adverse effects on lung angiogenesis.
Background:
Ibuprofen is a nonsteroidal anti-inflammatory drug that is commonly used to stimulate closure of a patent ductus arteriosus (PDA) in very premature infants and may lead to aberrant neonatal lung development and bronchopulmonary dysplasia (BPD).
Methods:
We investigated the effect of ibuprofen on angiogenesis in human umbilical cord vein endothelial cells (HUVECs) and the therapeutic potential of daily treatment with 50 mg/kg of ibuprofen injected subcutaneously in neonatal Wistar rat pups with severe hyperoxia-induced experimental BPD. Parameters investigated included growth, survival, lung histopathology and mRNA expression.
Results:
Ibuprofen inhibited angiogenesis in HUVECs, as shown by reduced tube formation, migration and cell proliferation via inhibition of the cell cycle S-phase and promotion of apoptosis. Treatment of newborn rat pups with ibuprofen reduced pulmonary vessel density in the developing lung, but also attenuated experimental BPD by reducing lung inflammation, alveolar enlargement, alveolar septum thickness and small arteriolar wall thickening.
Conclusions:
In conclusion, ibuprofen has dual effects on lung development: adverse effects on angiogenesis and beneficial effects on alveolarization and inflammation. Therefore, extrapolation of the beneficial effects of ibuprofen to premature infants with BPD should be done with extreme caution.
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