PUBLICATION

Iterative tomography with digital adaptive optics permits hour-long intravital observation of 3D subcellular dynamics at millisecond scale

Authors
Wu, J., Lu, Z., Jiang, D., Guo, Y., Qiao, H., Zhang, Y., Zhu, T., Cai, Y., Zhang, X., Zhanghao, K., Xie, H., Yan, T., Zhang, G., Li, X., Jiang, Z., Lin, X., Fang, L., Zhou, B., Xi, P., Fan, J., Yu, L., Dai, Q.
ID
ZDB-PUB-220106-9
Date
2021
Source
Cell   184: 3318-3332.e17 (Journal)
Registered Authors
Keywords
adaptive optics, calcium imaging, intravital, light-field microscopy, long-term high-speed imaging, migrasome, phototoxicity, retraction fiber, tumor metastasis
MeSH Terms
  • Algorithms*
  • Animals
  • Calcium/metabolism
  • Cell Line, Tumor
  • Cell Membrane/metabolism
  • Cell Movement
  • Drosophila
  • HeLa Cells
  • Humans
  • Imaging, Three-Dimensional*
  • Larva/physiology
  • Liver/diagnostic imaging
  • Male
  • Mice, Inbred C57BL
  • Neoplasms/pathology
  • Optics and Photonics*
  • Rats, Sprague-Dawley
  • Signal-To-Noise Ratio
  • Subcellular Fractions/physiology
  • Time Factors
  • Tomography*
  • Zebrafish
PubMed
34038702 Full text @ Cell
Abstract
Long-term subcellular intravital imaging in mammals is vital to study diverse intercellular behaviors and organelle functions during native physiological processes. However, optical heterogeneity, tissue opacity, and phototoxicity pose great challenges. Here, we propose a computational imaging framework, termed digital adaptive optics scanning light-field mutual iterative tomography (DAOSLIMIT), featuring high-speed, high-resolution 3D imaging, tiled wavefront correction, and low phototoxicity with a compact system. By tomographic imaging of the entire volume simultaneously, we obtained volumetric imaging across 225 × 225 × 16 μm3, with a resolution of up to 220 nm laterally and 400 nm axially, at the millisecond scale, over hundreds of thousands of time points. To establish the capabilities, we investigated large-scale cell migration and neural activities in different species and observed various subcellular dynamics in mammals during neutrophil migration and tumor cell circulation.
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