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자료유형
학술저널
저자정보
Zhongying Li (Binzhou People’s Hospital) Yanhong Chen (Binzhou People’s Hospital) Wenrong Li (Binzhou People’s Hospital) Fan Yan (The First Hospital of Yulin City)
저널정보
연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제61권 제8호
발행연도
2020.1
수록면
679 - 688 (10page)

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Purpose: Hyperoxia-induced bronchopulmonary dysplasia (BPD) is a lung disease in preterm infants. We aimed to explore therole of cell division cycle 2 (CDC2) on histopathologic changes of lung tissues, as well as the viability, apoptosis, and inflammationof lung cells in rats with hyperoxia-induced BPD. Materials and Methods: Hyperoxia-induced BPD in neonatal rats and hyperoxia-induced A549 cells were constructed. The mRNAexpression of CDC2 was detected by qRT-PCR. The fibrosis score of lung tissues was evaluated by hematoxylin-eosin staining. Theviability and apoptosis of A549 cells were detected by cell counting kit-8 assay and flow cytometry. The protein expressions of bcl-2,bax, and caspase-3 were measured by western blot. The levels of tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and IL-1β inA549 cells were detected by enzyme-linked immunosorbent assay. The pcDNA3.1-CDC2 was injected into rats to determine therole of CDC2 in hyperoxia-induced BPD in vivo. Results: The expression of CDC2 was decreased in lung tissues of neonatal rats with hyperoxia-induced BPD and hyperoxia-inducedA549 cells. The fibrosis score was increased in the lung tissues of neonatal rats with hyperoxia-induced BPD. Overexpressionof CDC2 increased the viability and protein expression of bcl-2; and inhibited the apoptosis, inflammation, and protein expressionof bax and caspase-3 in hyperoxia-induced A549 cells. Up-regulation of CDC2 alleviated the histopathologic changes in lung tissuesof neonatal rats with hyperoxia-induced BPD. Conclusion: Overexpression of CDC2 promoted the viability and inhibited the apoptosis and inflammation of hyperoxia-inducedcells, and alleviated the histopathologic changes of lung tissues in neonatal rats with hyperoxia-induced BPD.

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