机械剪流调节了结直肠癌细胞的恶性瘤
Yu-Ting Tseng1, Ching-Chung Tsai2,3, Ping-Chen Chen4
1Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan.
The Kaohsiung journal of medical sciences
|May 17, 2024
概括
剪切流,血液中的机械力,可以通过启动亡和抑制转移来减少结直肠癌 (CRC) 恶性病变. 这项研究探讨了剪切流量.
科学领域:
- 生物物理学的生物物理.
- 细胞生物学 细胞生物学
- 癌症研究 癌症研究
背景情况:
- 大肠直肠癌 (CRC) 呈现出高死亡率和转移潜力.
- 血流剪切力影响细胞反应,包括癌细胞转移.
- 了解转移中的机械信号对于开发新疗法至关重要.
研究的目的:
- 为了研究剪流对循环结直肠癌细胞的影响.
- 阐明剪切流影响CRC细胞行为的分子机制.
- 探索机械剪流作为CRC治疗策略的潜力.
主要方法:
- 暴露SW620 CRC电池在受控剪流 (6.25,12.5和25天/厘米2) 的情况下.
- 通过caspase-9和-3水平评估了亡.
- 分析了细胞循环的进展,使用流细胞计.
- 测量了氧化产量和反应性氧物种.
- 量化了表皮细胞-介质细胞转换 (EMT) 标记物 (E-cadherin,ZO-1,Snail,Twist1) 的数量.
- 评估细胞迁移和入侵.
- 评估线粒体功能 (膜潜力,质量,ATP产生).
主要成果:
- 在SW620细胞中,剪切流诱导了亡.
- 观察到G1阶段的细胞循环停止和循环D1的增加.
- 高-eNOS导致氧化氧化的产生和氧化应激.
- 剪流调节EMT标记物,增加表皮特征和减少介质细胞特征.
- 细胞迁移和入侵显著减少.
- 较低的剪流促进了介质酶特征,而较高的剪流增强了上皮特征.
结论:
- 机械剪流可以减少结肠直肠癌细胞恶性病变和转移潜力.
- 剪切流会诱导亡并抑制EMT,迁移和入侵.
- 对剪切流的反应是剂量依赖的,较高的剪切促进了上皮特征.
- 应用机械剪流为结直肠癌治疗提供了一种新的治疗方法.
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