期刊
JOURNAL OF ANATOMY
卷 238, 期 2, 页码 489-507出版社
WILEY
DOI: 10.1111/joa.13309
关键词
data processing; light scattering; optical sectioning microscope; tissue clearing technique; whole-body imaging
资金
- Ministry of Science and Technology of China [2017YFC1104001, 2017YFC1104002]
- National Natural Science Foundation of China [31730030, 31771053, 31670988, 31900749, 31970970, 31900980, 31971279, 31320103903]
- Beijing Natural Science Foundation Program [KZ201810025030]
- Beijing Science and Technology Program [Z181100001818007]
Organisms are inherently three dimensional, and tissue clearing technique aims to make organs and whole bodies transparent for deep imaging and quantification of large volume samples. When combined with molecular labeling methods and optical sectioning microscopes, this technique enables detailed whole-body and whole-organ imaging at cellular or subcellular resolution, contributing to a better understanding of intact biological systems and structure-function relationships.
Organisms are inherently three dimensional, thus comprehensive understanding of the complicated biological system requires analysis of organs or even whole bodies in the context of three dimensions. However, this is a tremendous task since the biological specimens are naturally opaque, a major obstacle in whole-body and whole-organ imaging. Tissue clearing technique provides a prospective solution and has become a powerful tool for three-dimensional imaging and quantification of organisms. Tissue clearing technique aims to make tissue transparent by minimizing light scattering and light absorption, thus allowing deep imaging of large volume samples. When combined with diverse molecular labeling methods and high-throughput optical sectioning microscopes, tissue clearing technique enables whole-body and whole-organ imaging at cellular or subcellular resolution, providing detailed and comprehensive information about the intact biological systems. Here, we give an overview of recent progress and biomedical applications of tissue clearing technique. We introduce the mechanisms and basic principles of tissue clearing, and summarize the current tissue clearing methods. Moreover, the available imaging techniques and software packages for data processing are also presented. Finally, we introduce the recent advances in applications of tissue clearing in biomedical fields. Tissue clearing contributes to the investigation of structure-function relationships in intact mammalian organs, and opens new avenues for cellular and molecular mapping of intact human organs. We hope this review contributes to a better understanding of tissue clearing technique and can help researchers to select the best-suited clearing protocol for their experiments.
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