精品文档---下载后可任意编辑Runx3 调节 BPD 新生鼠肺泡Ⅱ型上皮间质转化的讨论的开题报告Title: The role of Runx3 in regulating alveolar type II epithelial to mesenchymal transition in a neonatal rat model of bronchopulmonary dysplasiaBackground: Bronchopulmonary dysplasia (BPD) is a chronic lung disease that affects premature infants who require mechanical ventilation and oxygen therapy. It is characterized by impaired lung development, inflammation, and fibrosis. Alveolar type II epithelial to mesenchymal transition (EMT) has been proposed as a mechanism contributing to fibrosis in BPD. The transcription factor Runx3 has been shown to be involved in regulating EMT in multiple organs and diseases. However, its role in BPD is still unclear.Objectives: The aim of this study is to investigate the role of Runx3 in regulating alveolar type II EMT in a neonatal rat model of BPD.Methods: Neonatal rats will be exposed to hyperoxia for 14 days to induce BPD. Lung tissues will be collected and analyzed for mRNA and protein expression of Runx3 and EMT markers (E-cadherin, N-cadherin, vimentin, and Snail). The effect of Runx3 knockdown or overexpression on EMT will be investigated using siRNA or adenovirus vectors in vitro. The effect of Runx3 overexpression on BPD will be assessed by introducing the adenovirus vector into neonatal rats before exposure to hyperoxia.Expected outcomes and significance: We expect to demonstrate that Runx3 regulates alveolar type II EMT in a neonatal rat model of BPD. Our study will add to the understanding of the mechanisms underlying BPD and may provide a potential therapeutic target for this disease.
