Cited by 75Advanced Fluorescence Microscopy TechniquesGlioma Diagnosis and TreatmentOptical Imaging and Spectroscopy Techniques

Six-color intravital two-photon imaging of brain tumors and their dynamic microenvironment

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Ricard, Clément, Debarbieux, Franck Christian·2014·Frontiers in Cellular Neuroscience

Abstract

The majority of intravital studies on brain tumor in living animal so far rely on dual color imaging. We describe here a multiphoton imaging protocol to dynamically characterize the interactions between six cellular components in a living mouse. We applied this methodology to a clinically relevant glioblastoma multiforme (GBM) model designed in reporter mice with targeted cell populations labeled by fluorescent proteins of different colors. This model permitted us to make non-invasive longitudinal and multi-scale observations of cell-to-cell interactions. We provide examples of such 5D (x,y,z,t,color) images acquired on a daily basis from volumes of interest, covering most of the mouse parietal cortex at subcellular resolution. Spectral deconvolution allowed us to accurately separate each cell population as well as some components of the extracellular matrix. The technique represents a powerful tool for investigating how tumor progression is influenced by the interactions of tumor cells with host cells and the extracellular matrix micro-environment. It will be especially valuable for evaluating neuro-oncological drug efficacy and target specificity. The imaging protocol provided here can be easily translated to other mouse models of neuropathologies, and should also be of fundamental interest for investigations in other areas of systems biology.

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Crossref · 10.3389/fncel.2014.00057

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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 [149]

    The Introduction and Results and discussions describe repeated intravital two-photon imaging of brain tumors, from large fields of view to subcellular detail. Experimental setup and image processing says the microscope collected epifluorescence signals after two-photon excitation. The paper does not describe integrating confocal laser scanning microscopy (CLSM), and it treats epifluorescence as a collected signal rather than a separate imaging method. Page numbers were not provided in our copy. (LLM, conf=0.86)

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Authors
Ricard, C., & Debarbieux, F. C.
Affiliations
Centre National de la Recherche Scientifique (FR)
Corresponding author
Debarbieux, Franck Christian
Venue
Frontiers in Cellular Neuroscience
Published
2014
Volume
8
Pages
57-57
ISSN
1662-5102 (ISSN-L)
OpenAlex
W2169145403
Cited by
75
References
38
Citations by year
2025: 5 · 2024: 3 · 2023: 4 · 2022: 7 · 2021: 10 · 2020: 10 · 2019: 6 · 2018: 6 · 2017: 10 · 2016: 9 · 2015: 4 · 2014: 1
FWCI
4.76
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Frontiers in Cellular Neuroscience (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Agence Nationale de la Recherche
  • Institut National de la Santé et de la Recherche Médicale (INCa-DGOS-Inserm 6038)
  • Institut National Du Cancer (INCa-DGOS-INSERM-6038)
  • Direction Générale de l’offre de Soins
  • Canceropôle Provence-Alpes-Côte d’Azur
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Health Sciences › Medicine › Genetics › Glioma Diagnosis and Treatment
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
Keywords
glioblastoma, intravital imaging, two-photon microscopy, tumor microenvironment, cell-cell interactions, fluorescent protein tagging, spectral deconvolution, extracellular matrix, longitudinal imaging, parietal cortex

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