从固定干燥到湿固定到活着 - - 肝脏侧侧内皮细胞化的比较超分辨率显微镜
Karolina Szafranska1, Tanja Neuman2, Zbigniew Baster3
1Department of Medical Biology, Vascular Biology Research Group, University of Tromsø (UiT), The Arctic University of Norway, Tromsø, Norway.
Nanophotonics (Berlin, Germany)
|December 16, 2024
概括
样本脱水显著改变肝脏内皮膜内皮细胞化尺寸. 将原子力显微镜与常规显微镜相结合,为 fenestration 研究提供了改进的超高分辨率成像和化学分析.
科学领域:
- 细胞生物学 细胞生物学
- 显微镜技术 显微镜技术
- 肝脏生理学 肝脏生理学
背景情况:
- 肝脏侧侧内皮细胞 (LSEC) 中的化对于肝功能至关重要,使溶液和宏分子的运输成为可能.
- 肝脏疾病,衰老和毒素可以导致LSEC防御,影响肝脏健康.
- 由于当前显微镜技术的局限性,对LSEC窗体的准确成像和测量仍然具有挑战性.
研究的目的:
- 为了比较不同的显微镜技术来量化LSEC窗体.
- 调查样品制备,特别是脱水对窗格尺寸的影响.
- 为 fenestration 分析提出一个改进的成像方法.
主要方法:
- 相对显微镜结合了扫描电子显微镜 (SEM) 和光学纳米镜 (结构化照明显微镜 - SIM,刺激辐射耗尽 - STED).
- 原子力显微镜 (AFM) 与SEM和STED集成,用于拓和化学信息.
- 通过不同的成像方式获得的窗格尺寸的比较分析.
主要成果:
- 发现样品脱水会显著改变窗体直径.
- 相对成像方法揭示了个别显微镜技术的局限性和优势.
- 结合AFM与传统显微镜,提供超高分辨率成像和有价值的化学洞察力.
结论:
- 精确测量LSEC窗需要仔细考虑样本的准备,特别是脱水.
- 相对显微镜,特别是AFM与其他技术相结合,增强了对窗形态和动态的理解.
- 这种综合方法提供了更深入的了解LSEC窗口及其疾病状态的变化.
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