通过实时相光成像绘制活细胞中的超分子组合
Yong Ren1, Zhixuan Zhou1, Konrad Maxeiner1
1Max Planck Institute for Polymer Research, 55128 Mainz, Germany.
Journal of the American Chemical Society
|April 19, 2024
概括
这项研究使用相光终生成像 (相光FLIM) 追踪细胞中的分子组合. 这项研究揭示了组合如何破坏内分体,影响细胞代谢和呼吸.
科学领域:
- 生物物理
- 细胞生物学
- 纳米技术
背景情况:
- 由于复杂的动力学,理解生物系统中的分子组合是具有挑战性的.
- 目前的技术缺乏关键早期组装事件的实时跟踪能力.
研究的目的:
- 将亲组件分子实时转化为纳米纤维及其与细胞内基体的相互作用.
- 将分子组合事件与生物影响相关联,特别是代谢功能障碍.
主要方法:
- 使用化学设计的辅助组装分子.
- 在L929,A549和MDA-MB 231上皮细胞中采用相光终生成像 (相光FLIM).
- 综合相关光电子显微镜和断层扫描 (CLEM) 用于时空分析.
主要成果:
- 成功地绘制了纳米纤维的形成和它们与内分体的融合,从而创建空洞纤维集群.
- 观察到组合事件和代谢功能障碍之间的时空相关性.
- 已证明组装诱导的内体乱导致葡萄糖运输减少和线粒体呼吸功能受损.
结论:
- 子FLIM和CLEM提供了对分子组装动态的关键实时见解.
- 分子组合可以通过内体干扰和呼吸障碍触发细胞代谢功能障碍.
- 这项研究建立了纳米级组装过程与细胞生物能学之间的联系.
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