新一代成像技术——通过多色显微术拓展对肝脏生物学和肝病的认知
Felix Heymann , Adrien Guillot , Moritz Peiseler , Frank Tacke
工程(英文) ›› 2022, Vol. 9 ›› Issue (2) : 17 -21.
新一代成像技术——通过多色显微术拓展对肝脏生物学和肝病的认知
Next-Generation Imaging: New Insights from Multicolor Microscopy in Liver Biology and Disease
| Imaging method | Applications and strengths | Limitations |
|---|---|---|
| Histological multiplexing | • Precise segregation of cells • Small sample amounts (e.g., biopsy) needed for multiparameter analysis • High spatial resolution and precise signal allocation • Can be combined with RNAscope and fluorescence in situ hybridization • Allows staining of cells, intracellular structures, and extracellular matrix | • Lengthy protocol for fluorescence multiplex • High cost for imaging mass cytometry • Validating antibodies required to target antigens and structures • Complex data structure/high demand on post-processing • Information only limited to the thickness of the section (2D) |
| Cellular tomography | • Deep tissue imaging with the potential to visualize complex anatomical structures in 3D • Applicable to all tissue types and organs: Clearing chemistry can be adopted to the amount of tissue autofluorescence, lipid content, and opacity | • Lengthy protocol with the need for individual optimization for each scientific question/organ • Need for specialized software for complex 3D rendering and visualization • Specifically targeting structures and cells for staining, finding matching antibodies • Need for specialized imaging equipment (light sheet/laser scanning microscope) • Balance between optimal clearing and staining |
| Intravital microscopy | • Visualization of dynamic processes • Functional imaging (metabolic and cell biological) feasible • Cellular adhesion, infiltration, and interaction • Tracking of infection and microbial spreading • Cell signaling and survival | • Penetration depth (< 100 µm) • Successful labeling of target structures and cells • Number of factors for simultaneous imaging • Need for maintenance of physiological conditions • Optimization of surgery protocol and surgical trauma • Validating antibodies required to target antigens and structures |
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