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慢性胃食道逆流失调节食道上皮细胞中的蛋白质稳定
Kodisundaram Paulrasu1, Ravindran Caspa Gokulan2, Wael El-Rifai1
1Department of Surgery, University of Miami, Miami, Florida.
Cellular and molecular gastroenterology and hepatology
|December 5, 2024
概括
胃食道逆流性疾病 (GERD) 导致细胞蛋白损伤和聚合,导致细胞死亡. 这一与GERD严重程度相关的过程,可以通过向活性异流格兰 (isoLGs) 来预防.
科学领域:
- 分子生物学分子生物学
- 胃肠病学 胃肠病学
- 病理学 病理学 病理学
背景情况:
- 胃食道逆流性疾病 (GERD) 涉及由胃逆流引起的食道组织损伤.
- 结核炎与氧化应激,反应性异构格兰 (isoLGs) 和蛋白质 adduct 形成有关.
- GERD增加了严重并发症的风险,包括食道瘤.
研究的目的:
- 研究 isoLG 添加和 GERD 中细胞蛋白聚合之间的联系.
- 了解与GERD相关的蛋白质错折和聚合背后的分子机制.
主要方法:
- 利用了各种蛋白质错折和聚合试验.
- 在人类和小鼠食道组织中检查了病理后果.
- 采用了反流损伤和转基因小鼠的手术模型来研究机制.
主要成果:
- 胃食道逆流诱导蛋白质错误折叠和聚合,与GERD严重程度相关.
- 蛋白质稳定性失调导致铁细胞死亡.
- 蛋白质的反应性isoLG修饰调解了这个过程,可以通过isoLG食尸体来预防.
结论:
- GERD 破坏细胞蛋白质稳定,导致 isoLG 蛋白质添加物,错误折叠和聚合蛋白质.
- 这些分子变化在GERD中促进了ferroptotic细胞死亡.
- GERD与蛋白质错误折叠和聚合的其他疾病具有分子相似之处.
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