Cited by 85Advanced Fluorescence Microscopy TechniquesOptical Imaging and Spectroscopy TechniquesSpectroscopy Techniques in Biomedical and Chemical Research

In vivo NIR-II structured-illumination light-sheet microscopy

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Wang, Feifei, Ma, Zhuoran, Zhong, Yeteng, Salazar, Felix, Xu, Chun, Ren, Fuqiang, Qu, Liangqiong, Wu, Anna M. +1 more·2021·Proceedings of the National Academy of Sciences

Abstract

Significance: Three-dimensional microscopy in the NIR-II window (1,000 to 1,700 nm) allows noninvasive deep-tissue optical sectioning of live mammals with high spatiotemporal resolution due to suppressed light scattering and reduced tissue autofluorescence. Herein, we present a NIR-II structured-illumination light-sheet microscopy (NIR-II SIM) with both excitation and emission wavelengths in the NIR-IIb window (1,500 to 1,700 nm). Integrating structured illumination into NIR-II light-sheet microscopy further diminished out-of-focus background and improved spatial resolution, facilitating in vivo imaging of cell behavior in the intact tissues without any invasive surgery during a long period. NIR-II SIM enabled longitudinally multiplexed molecular imaging of immune cells in response to immunotherapy in the tumor microenvironment.

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Authors
Wang, F., Ma, Z., Zhong, Y., Salazar, F., Xu, C., Ren, F., Qu, L., Wu, A. M., & Dai, H.
Affiliations
  • Stanford University (US)
  • City Of Hope National Medical Center (US)
Corresponding author
  • Wang, Feifei
  • Ma, Zhuoran
  • Dai, Hongjie
Venue
Proceedings of the National Academy of Sciences
Published
2021-02
Volume
118
Issue
6
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W3127300648
Cited by
85
References
79
Citations by year
2026: 11 · 2025: 17 · 2024: 17 · 2023: 17 · 2022: 18 · 2021: 5
FWCI
6.46
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Neurological Disorders and Stroke (DP1NS105737)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
Keywords
structured illumination, in vivo imaging, deep tissue imaging, light scattering suppression, tumor microenvironment, CT26 cells, OX40, CD4 and CD8 T cells, immunotherapy, CpG, Toll-like receptor 9 agonist
MeSH terms
Animals, Microscopy, Fluorescence, Imaging, Three-Dimensional, Cell Line, Tumor, Toll-Like Receptor 9, Mice, Single-Cell Analysis, Cellular Microenvironment, Optical Imaging

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