Prenatal inflammation enhances antenatal corticosteroid-induced fetal lung maturation.
Prenatal inflammation enhances antenatal corticosteroid-induced fetal lung maturation.
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产前炎症促进产前皮质类固醇诱导的胎儿肺成熟。
DOI:
10.1172/jci.insight.139452
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发表时间:
2020
期刊:
影响因子:
8
通讯作者:
Jobe,AlanH
中科院分区:
文献类型:
--
作者:
Schmidt,AugustoF;Kannan,ParanthamanS;Bridges,James;Presicce,Pietro;Jackson,CourtneyM;Miller,LisaA;Kallapur,SuhasG;Chougnet,ClaireA;Jobe,AlanH
Respiratory complications are the major cause of morbidity and mortality among preterm infants, which is partially prevented by the administration of antenatal corticosteroids (ACS). Most very preterm infants are exposed to chorioamnionitis, but short- and long-term effects of ACS treatment in this setting are not well defined. In low-resource settings, ACS increased neonatal mortality by perhaps increasing infection. We report that treatment with low-dose ACS in the setting of inflammation induced by intraamniotic lipopolysaccharide (LPS) in rhesus macaques improves lung compliance and increases surfactant production relative to either exposure alone. RNA sequencing shows that these changes are mediated by suppression of proliferation and induction of mesenchymal cellular death via TP53. The combined exposure results in a mature-like transcriptomic profile with inhibition of extracellular matrix development by suppression of collagen genes COL1A1, COL1A2, and COL3A1 and regulators of lung development FGF9 and FGF10. ACS and inflammation also suppressed signature genes associated with proliferative mesenchymal progenitors similar to the term gestation lung. Treatment with ACS in the setting of inflammation may result in early respiratory advantage to preterm infants, but this advantage may come at a risk of abnormal extracellular matrix development, which may be associated with increased risk of chronic lung disease.
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DOI:
10.1152/jappl.1987.63.4.1616
发表时间:
1987
期刊:
Journal of applied physiology (Bethesda, Md. : 1985)
影响因子:
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作者:
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影响因子:
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发表时间:
2001-03-01
影响因子:
4.9
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通讯作者:
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