2021
DOI: 10.15586/aei.v49i6.478
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SEMA3A protects against hyperoxia-induced lung injury in a bronchopulmonary dysplasia model of newborn rat by inhibiting ERK pathway

Abstract: Background Hyperoxia induces lung injury through lung inflammation in premature infants, leading to bronchopulmonary dysplasia (BPD). Semaphorin 3A (SEMA3A) participates in diverse biological processes, including cell migration, angiogenesis, and inflammation. The effect of SEMA3A on hyperoxic lung injury of neonatal rats with BPD was investigated in this study. Methods Neonatal rats with BPD were established through hyperoxia treatment. Hematoxylin-eosin staining was used to evaluate histopathological analysi… Show more

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Cited by 12 publications
(6 citation statements)
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“…Hyperoxia is often administered to premature babies, and a long-term exposure to hyperoxia potentially induces oxygen toxicity, chronic lung injury, and bronchopulmonary dysplasia. 1 Bronchopulmonary dysplasia induces arrest of vascular and alveolar development, and refers to common cause of respiratory disease with leading mortality and morbidity rates. 2 Bronchopulmonary dysplasia is characterized by fibrosis, abnormal lung function, mesenchymal cell hyperplasia, pulmonary growth arrest, and enlarged alveoli.…”
Section: Introductionmentioning
confidence: 99%
“…Hyperoxia is often administered to premature babies, and a long-term exposure to hyperoxia potentially induces oxygen toxicity, chronic lung injury, and bronchopulmonary dysplasia. 1 Bronchopulmonary dysplasia induces arrest of vascular and alveolar development, and refers to common cause of respiratory disease with leading mortality and morbidity rates. 2 Bronchopulmonary dysplasia is characterized by fibrosis, abnormal lung function, mesenchymal cell hyperplasia, pulmonary growth arrest, and enlarged alveoli.…”
Section: Introductionmentioning
confidence: 99%
“…Based on the previous studies, 34 pancreatic tissues were excised, and fixed in 4% paraformaldehyde (catalog number: P1110, Solaibio), and embedded. The paraffin-embedded tissues were sectioned into 5-µm slices, and stained with HE (catalog number: G1120, Solaibio).…”
Section: Methodsmentioning
confidence: 99%
“…Overexpression of clusterin, a glycoprotein expressed in airway epithelial cells, protected against hyperoxia-induced mitochondrial membrane disruption and prevented BCL2-associated X apoptosis regulator protein translocation, cytochrome C release, and caspase activation [ 363 ]. Inhibition of the ERK pathway by semaphorin 3A suppressed hyperoxia-induced apoptosis and inflammation [ 364 ]. Administration of chrysin (a flavonoid) attenuated lung damage via increased antioxidant activities (SOD and GSH), suppression of pro-inflammatory mediators (TNF-α and IL-1β), improving alveolarization, and reducing apoptosis (caspase 3) in an experimental model of hyperoxia-induced lung injury [ 365 ].…”
Section: Oxidative Stress and Inflammation In Hyperoxiamentioning
confidence: 99%