在结直肠癌发生的进展过程中,未折叠的蛋白质反应
Cesar Augusto Sobrinho1, Alexandre Moreira de Almeida1, Maytana Roberta Taschin Grigolo1
1Universidade Federal de Mato Grosso do Sul - Postgraduate Program in Health and Development in the Midwest Region - Campo Grande (MS) - Brazil.
Acta cirurgica brasileira
|January 15, 2025
概括
在结直肠癌的发展过程中,包括IRE1-α,PERK,ATF6和CHOP在内的内质网膜 (ER) 压力标志物显著上调,这表明细胞反应强烈. 这种分子进化突出了ER压力作为癌症进展的关键因素.
科学领域:
- 分子生物学分子生物学
- 在瘤学瘤学.
- 细胞应激反应的细胞应激反应
背景情况:
- 结肠直肠癌 (CRC) 是一个主要的全球健康问题.
- 细胞内膜网膜 (ER) 压力在各种疾病中发挥作用,包括癌症.
- 了解CRC致癌症中ER压力的分子机制对于开发向疗法至关重要.
研究的目的:
- 在结直肠癌的发展过程中调查关键ER压力标志物的基因表达的时间变化.
- 评估ER应激在结直肠癌分子演变中的作用.
主要方法:
- 通过使用氧甲和甲硫酸盐建立了小鼠结直肠癌模型.
- 在多个时间点使用实时定量聚合酶链反应量化ER压力标志物 (IRE1-α,PERK,ATF6和CHOP) 的基因表达量化.
- 从对照组和致癌组收集结肠组织进行分析.
主要成果:
- 与对照组相比,在致癌组的第10周和第20周,IRE1-α (ERN1) 和ATF6表达水平显著升高.
- 在致癌组中,PERK和CHOP表达在第15周和第20周显著上调.
- 这些发现表明,在结直肠癌的发展过程中,ER压力标志物逐渐增加.
结论:
- 该研究证实在结直肠癌致癌过程中存在显著的ER应激反应.
- IRE1-α,PERK,ATF6和CHOP的上调表明它们参与了CRC的分子进化.
- 准ER压力路径可能为结直肠癌提供潜在的治疗策略.
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