Cited by 271Advanced Fluorescence Microscopy TechniquesSpectroscopy Techniques in Biomedical and Chemical ResearchOptical Imaging and Spectroscopy Techniques

Intravital imaging by simultaneous label-free autofluorescence-multiharmonic microscopy

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You, Sixian, Tu, Haohua, Chaney, Eric J., Sun, Yi, Zhao, Youbo, Bower, Andrew J., Liu, Yuan-Zhi, Marjanovic, Marina +3 more·2018·Nature Communications

Abstract

Intravital microscopy (IVM) emerged and matured as a powerful tool for elucidating pathways in biological processes. Although label-free multiphoton IVM is attractive for its non-perturbative nature, its wide application has been hindered, mostly due to the limited contrast of each imaging modality and the challenge to integrate them. Here we introduce simultaneous label-free autofluorescence-multiharmonic (SLAM) microscopy, a single-excitation source nonlinear imaging platform that uses a custom-designed excitation window at 1110 nm and shaped ultrafast pulses at 10 MHz to enable fast (2-orders-of-magnitude improvement), simultaneous, and efficient acquisition of autofluorescence (FAD and NADH) and second/third harmonic generation from a wide array of cellular and extracellular components (e.g., tumor cells, immune cells, vesicles, and vessels) in living tissue using only 14 mW for extended time-lapse investigations. Our work demonstrates the versatility and efficiency of SLAM microscopy for tracking cellular events in vivo, and is a major enabling advance in label-free IVM.

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Crossref · 10.1038/s41467-018-04470-8

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  • IVM technique has been developed as an integration of methods including CLSM, multiphoton microscopy, and epifluorescence to dynamically evaluate tumor structure and physiological courses from tissue to subcellular level.

    “IVM technique has been developed as an integration of methods including CLSM, multiphoton microscopy, and epifluorescence to dynamically evaluate tumor structure and physiological courses from tissue to subcellular level [149,150].”

    From Approaches to Improve EPR-Based Drug Delivery for Cancer Therapy and Diagnosis (2023) · cites this paper as [150]

    The Abstract and Results (‘In vivo tumor microenvironment by SLAM microscopy’; no page numbers provided) describe dynamic, cellular-scale imaging of living tumor tissue. But the platform combines multiphoton autofluorescence with second- and third-harmonic imaging; the cited paper does not describe it as an integration of CLSM, multiphoton microscopy, and epifluorescence. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Leukocyte recruitment and clustering, their interaction with collagen fibers, adipocytes, and blood vessels, was concurrently captured with dynamic leukocyte behavior in a framework with the tumor or tissue microenvironment offering more insight into leukocyte behavior.

    “In addition to detected leukocyte recruitment and clustering, their interaction with the collagen fibers, adipocytes, and blood vessels, was concurrently captured with the dynamic leukocyte behavior in a framework with the tumor or tissue microenvironment offering more insight into leukocyte behavior [150].”
  • In addition to intravascular motion tracking of leukocytes, leukocyte locomotion in the extravascular region was imaged with time-lapse imaging.

    “In addition to the intravascular motion tracking of leukocytes, leukocyte locomotion in the extravascular region was imaged with time-lapse imaging.”
  • Label-free multiphoton IVM's widespread uses have been mired mainly due to inadequate contrast of each imaging technique and difficulties to combine them.

    “Although label-free multiphoton IVM is striking for its nonperturbative character, its widespread uses have been mired mainly due to the inadequate contrast of each imaging technique and difficulties to combine them [150].”

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Authors
You, S., Tu, H., Chaney, E. J., Sun, Y., Zhao, Y., Bower, A. J., Liu, Y.-Z., Marjanovic, M., Sinha, S., Pu, Y., & Boppart, S. A.
Affiliations
University of Illinois Urbana-Champaign (US)
Corresponding author
  • Tu, Haohua
  • Boppart, Stephen A.
Venue
Nature Communications
Published
2018-05-29
Volume
9
Issue
1
Pages
2125-2125
ISSN
2041-1723 (ISSN-L)
OpenAlex
W2805533175
Cited by
271
References
60
Citations by year
2026: 28 · 2025: 29 · 2024: 48 · 2023: 31 · 2022: 41 · 2021: 38 · 2020: 25 · 2019: 24 · 2018: 6
FWCI
12.03
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • National Institutes of Health
  • National Cancer Institute (R01CA213149, R01CA166309)
  • National Institute of Biomedical Imaging and Bioengineering (R01EB023232)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
Keywords
intravital microscopy, label-free imaging, autofluorescence, second harmonic generation, third harmonic generation, nonlinear optical imaging, FAD, NADH, cancer cells, immune cells, vesicles, blood vessels, time-lapse imaging
MeSH terms
Intravital Microscopy, Animals, Cell Movement, Female, Leukocytes, Rats, Inbred WF, Mammary Neoplasms, Animal, Imaging, Three-Dimensional, Microscopy, Fluorescence, Multiphoton, Rats, Cell Tracking, Tumor Microenvironment

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