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Stegmeyer RI, Stasch M, Olesker D, Taylor JM, Mitchell TJ, Hosny NA, Kirschnick N, Spickermann G, Vestweber D, Volkery S. Intravital Microscopy With an Airy Beam Light Sheet Microscope Improves Temporal Resolution and Reduces Surgical Trauma. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2024; 30:925-943. [PMID: 39423019 DOI: 10.1093/mam/ozae099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 08/15/2024] [Accepted: 09/06/2024] [Indexed: 10/21/2024]
Abstract
Intravital microscopy has emerged as a powerful imaging tool, which allows the visualization and precise understanding of rapid physiological processes at sites of inflammation in vivo, such as vascular permeability and leukocyte migration. Leukocyte interactions with the vascular endothelium can be characterized in the living organism in the murine cremaster muscle. Here, we present a microscopy technique using an Airy Beam Light Sheet microscope that has significant advantages over our previously used confocal microscopy systems. In comparison, the light sheet microscope offers near isotropic optical resolution and faster acquisition speed, while imaging a larger field of view. With less invasive surgery we can significantly reduce side effects such as bleeding, muscle twitching, and surgical inflammation. However, the increased acquisition speed requires exceptional tissue stability to avoid imaging artefacts. Since respiratory motion is transmitted to the tissue under investigation, we have developed a relocation algorithm that removes motion artefacts from our intravital microscopy images. Using these techniques, we are now able to obtain more detailed 3D time-lapse images of the cremaster vascular microcirculation, which allow us to observe the process of leukocyte emigration into the surrounding tissue with increased temporal resolution in comparison to our previous confocal approach.
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Affiliation(s)
- Rebekka I Stegmeyer
- Max Planck Institute for Molecular Biomedicine, Department Vascular Cell Biology, Röntgenstraße 20, 48161 Münster, North Rhine-Westphalia, Germany
| | - Malte Stasch
- Max Planck Institute for Molecular Biomedicine, BioOptic Service Unit, Röntgenstraße 20, 48161 Münster, North Rhine-Westphalia, Germany
| | - Daniel Olesker
- School of Physics and Astronomy, University of Glasgow, University Avenue B8 Kelvin Building, G12 8QQ, Glasgow, UK
- M Squared Life Limited, 14 East Bay Lane, The Press Centre, Here East, Queen Elizabeth Park, Stratford, E15 2GW, London, UK
| | - Jonathan M Taylor
- School of Physics and Astronomy, University of Glasgow, University Avenue B8 Kelvin Building, G12 8QQ, Glasgow, UK
| | - Thomas J Mitchell
- M Squared Life Limited, 14 East Bay Lane, The Press Centre, Here East, Queen Elizabeth Park, Stratford, E15 2GW, London, UK
| | - Neveen A Hosny
- M Squared Life Limited, 14 East Bay Lane, The Press Centre, Here East, Queen Elizabeth Park, Stratford, E15 2GW, London, UK
| | - Nils Kirschnick
- Max Planck Institute for Molecular Biomedicine, BioOptic Service Unit, Röntgenstraße 20, 48161 Münster, North Rhine-Westphalia, Germany
| | - Gunnar Spickermann
- M Squared Life Limited, 14 East Bay Lane, The Press Centre, Here East, Queen Elizabeth Park, Stratford, E15 2GW, London, UK
| | - Dietmar Vestweber
- Max Planck Institute for Molecular Biomedicine, Department Vascular Cell Biology, Röntgenstraße 20, 48161 Münster, North Rhine-Westphalia, Germany
| | - Stefan Volkery
- Max Planck Institute for Molecular Biomedicine, BioOptic Service Unit, Röntgenstraße 20, 48161 Münster, North Rhine-Westphalia, Germany
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Le Chapelain O, Jadoui S, Gros A, Barbaria S, Benmeziane K, Ollivier V, Dupont S, Solo Nomenjanahary M, Mavouna S, Rogozarski J, Mawhin MA, Caligiuri G, Delbosc S, Porteu F, Nieswandt B, Mangin PH, Boulaftali Y, Ho-Tin-Noé B. The localization, origin, and impact of platelets in the tumor microenvironment are tumor type-dependent. J Exp Clin Cancer Res 2024; 43:84. [PMID: 38493157 PMCID: PMC10944607 DOI: 10.1186/s13046-024-03001-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 03/01/2024] [Indexed: 03/18/2024] Open
Abstract
BACKGROUND How platelets interact with and influence the tumor microenvironment (TME) remains poorly characterized. METHODS We compared the presence and participation of platelets in the TME of two tumors characterized by highly different TME, PyMT AT-3 mammary tumors and B16F1 melanoma. RESULTS We show that whereas firmly adherent platelets continuously line tumor vessels of both AT-3 and B16F1 tumors, abundant extravascular stromal clusters of platelets from thrombopoietin-independent origin were present only in AT-3 mammary tumors. We further show that platelets influence the angiogenic and inflammatory profiles of AT-3 and B16F1 tumors, though with very different outcomes according to tumor type. Whereas thrombocytopenia increased bleeding in both tumor types, it further caused severe endothelial degeneration associated with massive vascular leakage, tumor swelling, and increased infiltration of cytotoxic cells, only in AT-3 tumors. CONCLUSIONS These results indicate that while platelets are integral components of solid tumors, their localization and origin in the TME, as well as their impact on its shaping, are tumor type-dependent.
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Affiliation(s)
- Ophélie Le Chapelain
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
| | - Soumaya Jadoui
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | - Angèle Gros
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | - Samir Barbaria
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | | | - Véronique Ollivier
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | - Sébastien Dupont
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
| | - Mialitiana Solo Nomenjanahary
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
| | - Sabrina Mavouna
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
| | - Jasmina Rogozarski
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France
| | - Marie-Anne Mawhin
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | | | - Sandrine Delbosc
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | | | - Bernhard Nieswandt
- Institute of Experimental Biomedicine I, University Hospital Würzburg and Rudolf Virchow Center for Integrative and Translational Bioimaging, University of Würzburg, Würzburg, Germany
| | - Pierre H Mangin
- Université de Strasbourg, Institut National de la Santé et de la Recherche Médicale, Etablissement Français du Sang Grand-Est, Unité Mixte de Recherche-S1255, Fédération de Médecine Translationnelle de Strasbourg, Strasbourg, F-67065, France
| | - Yacine Boulaftali
- Université Paris Cité, INSERM UMR 1148, LVTS, Paris, F-75018, France
| | - Benoit Ho-Tin-Noé
- Faculté de Pharmacie de Paris, Université Paris Cité, Inserm UMR-S 1144 -Optimisation Thérapeutique en Neuropsychopharmacologie, 4 avenue de l'Observatoire, Paris, 75006, France.
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Vargas A, Simon SI. Platelet Plugs Prevent Vascular Hemorrhage at Sites of Neutrophil Diapedesis. J Invest Dermatol 2022; 142:2558-2560. [PMID: 35987718 DOI: 10.1016/j.jid.2022.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 06/29/2022] [Accepted: 06/29/2022] [Indexed: 10/15/2022]
Affiliation(s)
- Alex Vargas
- Department of Biomedical Engineering, University of California, Davis, California, USA
| | - Scott I Simon
- Department of Biomedical Engineering, University of California, Davis, California, USA; Department of Dermatology, University of California, Davis, California, USA.
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Landmark-based retrieval of inflamed skin vessels enabled by 3D correlative intravital light and volume electron microscopy. Histochem Cell Biol 2022; 158:127-136. [PMID: 35764846 PMCID: PMC9338004 DOI: 10.1007/s00418-022-02119-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2022] [Indexed: 11/15/2022]
Abstract
The nanometer spatial resolution of electron microscopy imaging remains an advantage over light microscopy, but the restricted field of view that can be inspected and the inability to visualize dynamic cellular events are definitely drawbacks of standard transmission electron microscopy (TEM). Several methods have been developed to overcome these limitations, mainly by correlating the light microscopical image to the electron microscope with correlative light and electron microscopy (CLEM) techniques. Since there is more than one method to obtain the region of interest (ROI), the workflow must be adjusted according to the research question and biological material addressed. Here, we describe in detail the development of a three-dimensional CLEM workflow for mouse skin tissue exposed to an inflammation stimulus and imaged by intravital microscopy (IVM) before fixation. Our aim is to relocate a distinct vessel in the electron microscope, addressing a complex biological question: how do cells interact with each other and the surrounding environment at the ultrastructural level? Retracing the area over several preparation steps did not involve any specific automated instruments but was entirely led by anatomical and artificially introduced landmarks, including blood vessel architecture and carbon-coated grids. Successful retrieval of the ROI by electron microscopy depended on particularly high precision during sample manipulation and extensive documentation. Further modification of the TEM sample preparation protocol for mouse skin tissue even rendered the specimen suitable for serial block-face scanning electron microscopy (SBF-SEM).
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