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Chu B, Chen Z, Wu X, Shi H, Jin X, Song B, Cui M, Zhao Y, Zhao Y, He Y, Wang H, Dong F. Photoactivated Gas-Generating Nanocontrast Agents for Long-Term Ultrasonic Imaging-Guided Combined Therapy of Tumors. ACS NANO 2024; 18:15590-15606. [PMID: 38847586 DOI: 10.1021/acsnano.4c01041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2024]
Abstract
To date, long-term and continuous ultrasonic imaging for guiding the puncture biopsy remains a challenge. In order to address this issue, a multimodality imaging and therapeutic method was developed in the present study to facilitate long-term ultrasonic and fluorescence imaging-guided precision diagnosis and combined therapy of tumors. In this regard, certain types of photoactivated gas-generating nanocontrast agents (PGNAs), capable of exhibiting both ultrasonic and fluorescence imaging ability along with photothermal and sonodynamic function, were designed and fabricated. The advantages of these fabricated PGNAs were then utilized against tumors in vivo, and high therapeutic efficacy was achieved through long-term ultrasonic imaging-guided treatment. In particular, the as-prepared multifunctional PGNAs were applied successfully for the fluorescence-based determination of patient tumor samples collected through puncture biopsy in clinics, and superior performance was observed compared to the clinically used SonoVue contrast agents that are incapable of specifically distinguishing the tumor in ex vivo tissues.
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Affiliation(s)
- Binbin Chu
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Zhiming Chen
- Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Xiaofeng Wu
- Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Haoliang Shi
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Xiangbowen Jin
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Bin Song
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Mingyue Cui
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Yadan Zhao
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Yingying Zhao
- Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
| | - Yao He
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
- Macao Translational Medicine Center, Macau University of Science and Technology, Taipa, 999078 Macau SAR, China
- Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, 999078 Macau SAR, China
| | - Houyu Wang
- Suzhou Key Laboratory of Nanotechnology and Biomedicine, Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Soochow University, Suzhou 215123 China
| | - Fenglin Dong
- Department of Ultrasound, the First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215006, China
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2
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Kim HS, Halabi EA, Enbergs N, Kohler RH, Fei F, Garris CS, Weissleder R. A non-lipid nucleic acid delivery vector with dendritic cell tropism and stimulation. Theranostics 2024; 14:2934-2945. [PMID: 38773971 PMCID: PMC11103498 DOI: 10.7150/thno.95267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Accepted: 04/10/2024] [Indexed: 05/24/2024] Open
Abstract
Rationale: Nucleic acid constructs are commonly used for vaccination, immune stimulation, and gene therapy, but their use in cancer still remains limited. One of the reasons is that systemic delivery to tumor-associated antigen-presenting cells (dendritic cells and macrophages) is often inefficient, while off-target nucleic acid-sensing immune pathways can stimulate systemic immune responses. Conversely, certain carbohydrate nanoparticles with small molecule payloads have been shown to target these cells efficiently in the tumor microenvironment. Yet, nucleic acid incorporation into such carbohydrate-based nanoparticles has proven challenging. Methods: We developed a novel approach using cross-linked bis succinyl-cyclodextrin (b-s-CD) nanoparticles to efficiently deliver nucleic acids and small-molecule immune enhancer to phagocytic cells in tumor environments and lymph nodes. Our study involved incorporating these components into the nanoparticles and assessing their efficacy in activating antigen-presenting cells. Results: The multi-modality immune stimulators effectively activated antigen-presenting cells and promoted anti-tumor immunity in vivo. This was evidenced by enhanced delivery to phagocytic cells and subsequent immune response activation in tumor environments and lymph nodes. Conclusion: Here, we describe a new approach to incorporating both nucleic acids and small-molecule immune enhancers into cross-linked bis succinyl-cyclodextrin (b-s-CD) nanoparticles for efficient delivery to phagocytic cells in tumor environments and lymph nodes in vivo. These multi-modality immune stimulators can activate antigen-presenting cells and foster anti-tumor immunity. We argue that this strategy can potentially be used to enhance anti-tumor efficacy.
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Affiliation(s)
| | | | | | | | | | | | - Ralph Weissleder
- ✉ Corresponding author: R. Weissleder, MD, PhD. Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114. 617-726-8226;
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3
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Enbergs N, Halabi EA, Goubet A, Schleyer K, Fredrich IR, Kohler RH, Garris CS, Pittet MJ, Weissleder R. Pharmacological Polarization of Tumor-Associated Macrophages Toward a CXCL9 Antitumor Phenotype. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309026. [PMID: 38342608 PMCID: PMC11022742 DOI: 10.1002/advs.202309026] [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: 11/23/2023] [Revised: 01/16/2024] [Indexed: 02/13/2024]
Abstract
Tumor-associated macrophages (TAM) are a diverse population of myeloid cells that are often abundant and immunosuppressive in human cancers. CXCL9Hi TAM has recently been described to have an antitumor phenotype and is linked to immune checkpoint response. Despite the emerging understanding of the unique antitumor TAM phenotype, there is a lack of TAM-specific therapeutics to exploit this new biological understanding. Here, the discovery and characterization of multiple small-molecule enhancers of chemokine ligand 9 (CXCL9) and their targeted delivery in a TAM-avid systemic nanoformulation is reported. With this strategy, it is efficient encapsulation and release of multiple drug loads that can efficiently induce CXCL9 expression in macrophages, both in vitro and in vivo in a mouse tumor model. These observations provide a window into the molecular features that define TAM-specific states, an insight a novel therapeutic anticancer approach is used to discover.
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Affiliation(s)
- Noah Enbergs
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Elias A. Halabi
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Anne‐Gaëlle Goubet
- Department of Pathology and ImmunologyUniversity of GenevaGeneva1211Switzerland
- AGORA Cancer CenterSwiss Cancer Center LemanLausanne1011Switzerland
| | - Kelton Schleyer
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Ina R. Fredrich
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Rainer H. Kohler
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Christopher S. Garris
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Mikaël J. Pittet
- Department of Pathology and ImmunologyUniversity of GenevaGeneva1211Switzerland
- AGORA Cancer CenterSwiss Cancer Center LemanLausanne1011Switzerland
- Ludwig Institute for Cancer ResearchLausanne1005Switzerland
| | - Ralph Weissleder
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
- Department of Systems BiologyHarvard Medical School200 Longwood AveBostonMA02115USA
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Conci C, Sironi L, Jacchetti E, Panzeri D, Inverso D, Martínez Vázquez R, Osellame R, Collini M, Cerullo G, Chirico G, Raimondi MT. In vivo label-free tissue histology through a microstructured imaging window. APL Bioeng 2024; 8:016102. [PMID: 38222895 PMCID: PMC10787586 DOI: 10.1063/5.0165411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/06/2023] [Indexed: 01/16/2024] Open
Abstract
Tissue histopathology, based on hematoxylin and eosin (H&E) staining of thin tissue slices, is the gold standard for the evaluation of the immune reaction to the implant of a biomaterial. It is based on lengthy and costly procedures that do not allow longitudinal studies. The use of non-linear excitation microscopy in vivo, largely label-free, has the potential to overcome these limitations. With this purpose, we develop and validate an implantable microstructured device for the non-linear excitation microscopy assessment of the immune reaction to an implanted biomaterial label-free. The microstructured device, shaped as a matrix of regular 3D lattices, is obtained by two-photon laser polymerization. It is subsequently implanted in the chorioallantoic membrane (CAM) of embryonated chicken eggs for 7 days to act as an intrinsic 3D reference frame for cell counting and identification. The histological analysis based on H&E images of the tissue sections sampled around the implanted microstructures is compared to non-linear excitation and confocal images to build a cell atlas that correlates the histological observations to the label-free images. In this way, we can quantify the number of cells recruited in the tissue reconstituted in the microstructures and identify granulocytes on label-free images within and outside the microstructures. Collagen and microvessels are also identified by means of second-harmonic generation and autofluorescence imaging. The analysis indicates that the tissue reaction to implanted microstructures is like the one typical of CAM healing after injury, without a massive foreign body reaction. This opens the path to the use of similar microstructures coupled to a biomaterial, to image in vivo the regenerating interface between a tissue and a biomaterial with label-free non-linear excitation microscopy. This promises to be a transformative approach, alternative to conventional histopathology, for the bioengineering and the validation of biomaterials in in vivo longitudinal studies.
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Affiliation(s)
- Claudio Conci
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta,” Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
| | - Laura Sironi
- Department of Physics, Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - Emanuela Jacchetti
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta,” Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
| | - Davide Panzeri
- Department of Physics, Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - Donato Inverso
- Division of Immunology, Transplantation and Infectious Diseases IRCCS San Raffaele Scientific Institute, Vita-Salute San Raffaele University, Milan, Italy
| | - Rebeca Martínez Vázquez
- Institute for Photonics and Nanotechnologies (IFN), CNR and Department of Physics, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
| | - Roberto Osellame
- Institute for Photonics and Nanotechnologies (IFN), CNR and Department of Physics, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
| | - Maddalena Collini
- Department of Physics, Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - Giulio Cerullo
- Institute for Photonics and Nanotechnologies (IFN), CNR and Department of Physics, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
| | - Giuseppe Chirico
- Department of Physics, Università di Milano-Bicocca, Piazza della Scienza 3, 20126 Milan, Italy
| | - Manuela Teresa Raimondi
- Department of Chemistry, Materials and Chemical Engineering “Giulio Natta,” Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milan, Italy
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5
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Kwak A, Thanabalasuriar A. Intravital Microscopy for Imaging and Live Cell Tracking of Alveolar Macrophages in Real Time. Methods Mol Biol 2024; 2813:189-204. [PMID: 38888779 DOI: 10.1007/978-1-0716-3890-3_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
Classic in vitro coculture assays of pathogens with host cells have contributed significantly to our understanding of the intracellular lifestyle of several pathogens. Coculture assays with pathogens and eukaryotic cells can be analyzed through various techniques including plating for colony-forming units (CFU), confocal microscopy, and flow cytometry. However, findings from in vitro assays require validation in an in vivo model. Several physiological conditions can influence host-pathogen interactions, which cannot easily be mimicked in vitro. Intravital microscopy (IVM) is emerging as a powerful tool for studying host-pathogen interactions by enabling in vivo imaging of living organisms. As a result, IVM has significantly enhanced the understanding of infection mediated by diverse pathogens. The versatility of IVM has also allowed for the imaging of various organs as sites of local infection. This chapter specifically focuses on IVM conducted on the lung for elucidating pulmonary immune response, primarily involving alveolar macrophages, to pathogens. Additionally, in this chapter we outline the protocol for lung IVM that utilizes a thoracic suction window to stabilize the lung for acquiring stable images.
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Affiliation(s)
- Ashley Kwak
- School of Biomedical Sciences Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada
| | - Ajitha Thanabalasuriar
- School of Biomedical Sciences Pharmacology & Therapeutics, McGill University, Montreal, QC, Canada.
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6
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Korolj A, Kohler RH, Scott E, Halabi EA, Lucas K, Carlson JCT, Weissleder R. Perfusion Window Chambers Enable Interventional Analyses of Tumor Microenvironments. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2304886. [PMID: 37870204 DOI: 10.1002/advs.202304886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/29/2023] [Indexed: 10/24/2023]
Abstract
Intravital microscopy (IVM) allows spatial and temporal imaging of different cell types in intact live tissue microenvironments. IVM has played a critical role in understanding cancer biology, invasion, metastases, and drug development. One considerable impediment to the field is the inability to interrogate the tumor microenvironment and its communication cascades during disease progression and therapeutic interventions. Here, a new implantable perfusion window chamber (PWC) is described that allows high-fidelity in vivo microscopy, local administration of stains and drugs, and longitudinal sampling of tumor interstitial fluid. This study shows that the new PWC design allows cyclic multiplexed imaging in vivo, imaging of drug action, and sampling of tumor-shed materials. The PWC will be broadly useful as a novel perturbable in vivo system for deciphering biology in complex microenvironments.
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Affiliation(s)
- Anastasia Korolj
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, MA, 02115, USA
| | - Rainer H Kohler
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
| | - Ella Scott
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
| | - Elias A Halabi
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
| | - Kilean Lucas
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
| | - Jonathan C T Carlson
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
- Cancer Center, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA, 02114, USA
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, MA, 02115, USA
- Cancer Center, Massachusetts General Hospital, 55 Fruit Street, Boston, MA, 02114, USA
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7
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Balasubramanian H, Hobson CM, Chew TL, Aaron JS. Imagining the future of optical microscopy: everything, everywhere, all at once. Commun Biol 2023; 6:1096. [PMID: 37898673 PMCID: PMC10613274 DOI: 10.1038/s42003-023-05468-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023] Open
Abstract
The optical microscope has revolutionized biology since at least the 17th Century. Since then, it has progressed from a largely observational tool to a powerful bioanalytical platform. However, realizing its full potential to study live specimens is hindered by a daunting array of technical challenges. Here, we delve into the current state of live imaging to explore the barriers that must be overcome and the possibilities that lie ahead. We venture to envision a future where we can visualize and study everything, everywhere, all at once - from the intricate inner workings of a single cell to the dynamic interplay across entire organisms, and a world where scientists could access the necessary microscopy technologies anywhere.
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Affiliation(s)
| | - Chad M Hobson
- Advanced Imaging Center; Howard Hughes Medical Institute Janelia Research Campus, Ashburn, VA, 20147, USA
| | - Teng-Leong Chew
- Advanced Imaging Center; Howard Hughes Medical Institute Janelia Research Campus, Ashburn, VA, 20147, USA
| | - Jesse S Aaron
- Advanced Imaging Center; Howard Hughes Medical Institute Janelia Research Campus, Ashburn, VA, 20147, USA.
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8
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Fredrich I, Halabi EA, Kohler RH, Ge X, Garris CS, Weissleder R. Highly Active Myeloid Therapy for Cancer. ACS NANO 2023; 17:20666-20679. [PMID: 37824733 PMCID: PMC10941024 DOI: 10.1021/acsnano.3c08034] [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] [Indexed: 10/14/2023]
Abstract
Tumor-associated macrophages (TAM) interact with cancer and stromal cells and are integral to sustaining many cancer-promoting features. Therapeutic manipulation of TAM could therefore improve clinical outcomes and synergize with immunotherapy and other cancer therapies. While different nanocarriers have been used to target TAM, a knowledge gap exists on which TAM pathways to target and what payloads to deliver for optimal antitumor effects. We hypothesized that a multipart combination involving the Janus tyrosine kinase (JAK), noncanonical nuclear factor kappa light chain enhancer of activated B cells (NF-κB), and toll-like receptor (TLR) pathways could lead to a highly active myeloid therapy (HAMT). Thus, we devised a screen to determine drug combinations that yield maximum IL-12 production from myeloid cells to treat the otherwise highly immunosuppressive myeloid environments in tumors. Here we show the extraordinary efficacy of a triple small-molecule combination in a TAM-targeted nanoparticle for eradicating murine tumors, jumpstarting a highly efficient antitumor response by adopting a distinctive antitumor TAM phenotype and synergizing with other immunotherapies. The HAMT therapy represents a recently developed approach in immunotherapy and leads to durable responses in murine cancer models.
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Affiliation(s)
- Ina Fredrich
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
| | - Elias A. Halabi
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
| | - Rainer H. Kohler
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
| | - Xinying Ge
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
| | - Christopher S. Garris
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
- Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, United States
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, 185 Cambridge St, CPZN 5206, Boston, MA 02114, United States
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, United States
- Department of Systems Biology, Harvard Medical School, 200 Longwood Ave, Boston, MA 02115, United States
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9
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Bordoni L, Kristensen AM, Sardella D, Kidmose H, Pohl L, Krag SRP, Schiessl IM. Longitudinal tracking of acute kidney injury reveals injury propagation along the nephron. Nat Commun 2023; 14:4407. [PMID: 37479698 PMCID: PMC10362041 DOI: 10.1038/s41467-023-40037-y] [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: 01/17/2023] [Accepted: 07/10/2023] [Indexed: 07/23/2023] Open
Abstract
Acute kidney injury (AKI) is an important risk factor for chronic kidney disease (CKD), but the underlying mechanisms of failed tubule repair and AKI-CKD transition are incompletely understood. In this study, we aimed for dynamic tracking of tubule injury and remodeling to understand if focal injury upon AKI may spread over time. Here, we present a model of AKI, in which we rendered only half of the kidney ischemic. Using serial intravital 2-photon microscopy and genetic identification of cycling cells, we tracked dynamic tissue remodeling in post- and non-ischemic kidney regions simultaneously and over 3 weeks. Spatial and temporal analysis of cycling cells relative to initial necrotic cell death demonstrated pronounced injury propagation and expansion into non-necrotic tissue regions, which predicted tubule atrophy with epithelial VCAM1 expression. In summary, our longitudinal analyses of tubule injury, remodeling, and fate provide important insights into AKI pathology.
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Affiliation(s)
- Luca Bordoni
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- GliaLab and Letten Centre, Division of Anatomy, Department of Molecular Medicine, Institute of Basic Medical Sciences, University of Oslo, Oslo, Norway
| | | | - Donato Sardella
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Hanne Kidmose
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Layla Pohl
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
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10
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Hebert JD, Neal JW, Winslow MM. Dissecting metastasis using preclinical models and methods. Nat Rev Cancer 2023; 23:391-407. [PMID: 37138029 DOI: 10.1038/s41568-023-00568-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/27/2023] [Indexed: 05/05/2023]
Abstract
Metastasis has long been understood to lead to the overwhelming majority of cancer-related deaths. However, our understanding of the metastatic process, and thus our ability to prevent or eliminate metastases, remains frustratingly limited. This is largely due to the complexity of metastasis, which is a multistep process that likely differs across cancer types and is greatly influenced by many aspects of the in vivo microenvironment. In this Review, we discuss the key variables to consider when designing assays to study metastasis: which source of metastatic cancer cells to use and where to introduce them into mice to address different questions of metastasis biology. We also examine methods that are being used to interrogate specific steps of the metastatic cascade in mouse models, as well as emerging techniques that may shed new light on previously inscrutable aspects of metastasis. Finally, we explore approaches for developing and using anti-metastatic therapies, and how mouse models can be used to test them.
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Affiliation(s)
- Jess D Hebert
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA
| | - Joel W Neal
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, USA
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Monte M Winslow
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Cancer Institute, Stanford University School of Medicine, Stanford, CA, USA.
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA.
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11
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Croci D, Zomer A, Kowal J, Joyce JA. Cranial imaging window implantation technique for longitudinal multimodal imaging of the brain environment in live mice. STAR Protoc 2023; 4:102197. [PMID: 36964905 PMCID: PMC10050773 DOI: 10.1016/j.xpro.2023.102197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/23/2023] [Accepted: 03/06/2023] [Indexed: 03/26/2023] Open
Abstract
Intravital two-photon microscopy of the mouse brain requires visual access without affecting normal cognitive functions, which is crucial for longitudinal imaging studies that may last several months. In this protocol, we describe the surgical implantation of a metal-free cranial imaging window, which can be used to perform two-photon microscopy and magnetic resonance imaging in the same animal. This multimodal imaging platform enables the investigation of dynamic processes in the central nervous system at a cellular and macroscopic level. For complete details on the use and execution of this protocol in the context of brain cancer, please refer to Zomer et al.1.
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Affiliation(s)
- Davide Croci
- Department of Oncology, University of Lausanne, 1011 Lausanne, Switzerland; Ludwig Institute for Cancer Research, University of Lausanne, 1011 Lausanne, Switzerland; Agora Cancer Research Centre Lausanne, 1011 Lausanne, Switzerland
| | - Anoek Zomer
- Department of Oncology, University of Lausanne, 1011 Lausanne, Switzerland; Ludwig Institute for Cancer Research, University of Lausanne, 1011 Lausanne, Switzerland; Agora Cancer Research Centre Lausanne, 1011 Lausanne, Switzerland
| | - Joanna Kowal
- Department of Oncology, University of Lausanne, 1011 Lausanne, Switzerland; Ludwig Institute for Cancer Research, University of Lausanne, 1011 Lausanne, Switzerland; Agora Cancer Research Centre Lausanne, 1011 Lausanne, Switzerland
| | - Johanna A Joyce
- Department of Oncology, University of Lausanne, 1011 Lausanne, Switzerland; Ludwig Institute for Cancer Research, University of Lausanne, 1011 Lausanne, Switzerland; Agora Cancer Research Centre Lausanne, 1011 Lausanne, Switzerland; L. Lundin and Family Brain Tumor Research Center, Departments of Oncology and Clinical Neurosciences, Centre Hospitalier Universitaire Vaudois, 1011 Lausanne, Switzerland.
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12
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Morgner J, Bornes L, Hahn K, López-Iglesias C, Kroese L, Pritchard CEJ, Vennin C, Peters PJ, Huijbers I, van Rheenen J. A Lamb1Dendra2 mouse model identifies basement-membrane-producing origins and dynamics in PyMT breast tumors. Dev Cell 2023; 58:535-549.e5. [PMID: 36905927 DOI: 10.1016/j.devcel.2023.02.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/20/2022] [Accepted: 02/20/2023] [Indexed: 03/12/2023]
Abstract
The basement membrane (BM) around tumor lobes forms a barrier to prevent cancer cells from invading the surrounding tissue. Although myoepithelial cells are key producers of the healthy mammary epithelium BM, they are nearly absent in mammary tumors. To study the origin and dynamics of the BM, we developed and imaged a laminin beta1-Dendra2 mouse model. We show that the turnover of laminin beta1 is faster in the BMs that surround the tumor lobes than in the BMs that surround the healthy epithelium. Moreover, we find that epithelial cancer cells and tumor-infiltrating endothelial cells synthesize laminin beta1 and that this production is temporarily and locally heterogeneous, leading to local discontinuity of the BM laminin beta1. Collectively, our data draw a new paradigm for tumor BM turnover in which the disassembly happens at a constant rate, and a local misbalance of compensating production leads to reduction or even complete disappearance of the BM.
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Affiliation(s)
- Jessica Morgner
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands.
| | - Laura Bornes
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Kerstin Hahn
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Carmen López-Iglesias
- The Maastricht Multimodal Molecular Imaging Institute, Maastricht University, Maastricht, 6229 ER, the Netherlands
| | - Lona Kroese
- Mouse Clinic for Cancer and Aging, the Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Colin E J Pritchard
- Mouse Clinic for Cancer and Aging, the Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Claire Vennin
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Peter J Peters
- The Maastricht Multimodal Molecular Imaging Institute, Maastricht University, Maastricht, 6229 ER, the Netherlands
| | - Ivo Huijbers
- Mouse Clinic for Cancer and Aging, the Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands
| | - Jacco van Rheenen
- Department of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, 1066 CX, the Netherlands.
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13
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Sardella D, Kristensen AM, Bordoni L, Kidmose H, Shahrokhtash A, Sutherland DS, Frische S, Schiessl IM. Serial intravital 2-photon microscopy and analysis of the kidney using upright microscopes. Front Physiol 2023; 14:1176409. [PMID: 37168225 PMCID: PMC10164931 DOI: 10.3389/fphys.2023.1176409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Accepted: 04/03/2023] [Indexed: 05/13/2023] Open
Abstract
Serial intravital 2-photon microscopy of the kidney and other abdominal organs is a powerful technique to assess tissue function and structure simultaneously and over time. Thus, serial intravital microscopy can capture dynamic tissue changes during health and disease and holds great potential to characterize (patho-) physiological processes with subcellular resolution. However, successful image acquisition and analysis require significant expertise and impose multiple potential challenges. Abdominal organs are rhythmically displaced by breathing movements which hamper high-resolution imaging. Traditionally, kidney intravital imaging is performed on inverted microscopes where breathing movements are partly compensated by the weight of the animal pressing down. Here, we present a custom and easy-to-implement setup for intravital imaging of the kidney and other abdominal organs on upright microscopes. Furthermore, we provide image processing protocols and a new plugin for the free image analysis software FIJI to process multichannel fluorescence microscopy data. The proposed image processing pipelines cover multiple image denoising algorithms, sample drift correction using 2D registration, and alignment of serial imaging data collected over several weeks using landmark-based 3D registration. The provided tools aim to lower the barrier of entry to intravital microscopy of the kidney and are readily applicable by biomedical practitioners.
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Affiliation(s)
- Donato Sardella
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- *Correspondence: Ina Maria Schiessl, ; Donato Sardella,
| | | | - Luca Bordoni
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Hanne Kidmose
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
| | - Ali Shahrokhtash
- Interdisciplinary Nanoscience Center, Aarhus University, Aarhus, Denmark
| | | | | | - Ina Maria Schiessl
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- *Correspondence: Ina Maria Schiessl, ; Donato Sardella,
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14
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Abstract
In this series of papers on light microscopy imaging, we have covered the fundamentals of microscopy, super-resolution microscopy, and lightsheet microscopy. This last review covers multi-photon microscopy with a brief reference to intravital imaging and Brainbow labeling. Multi-photon microscopy is often referred to as two-photon microscopy. Indeed, using two-photon microscopy is by far the most common way of imaging thick tissues; however, it is theoretically possible to use a higher number of photons, and three-photon microscopy is possible. Therefore, this review is titled "multi-photon microscopy." Another term for describing multi-photon microscopy is "non-linear" microscopy because fluorescence intensity at the focal spot depends upon the average squared intensity rather than the squared average intensity; hence, non-linear optics (NLO) is an alternative name for multi-photon microscopy. It is this non-linear relationship (or third exponential power in the case of three-photon excitation) that determines the axial optical sectioning capability of multi-photon imaging. In this paper, the necessity for two-photon or multi-photon imaging is explained, and the method of optical sectioning by multi-photon microscopy is described. Advice is also given on what fluorescent markers to use and other practical aspects of imaging thick tissues. The technique of Brainbow imaging is discussed. The review concludes with a description of intravital imaging of the mouse. © 2023 Wiley Periodicals LLC.
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15
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Entenberg D, Oktay MH, Condeelis JS. Intravital imaging to study cancer progression and metastasis. Nat Rev Cancer 2023; 23:25-42. [PMID: 36385560 PMCID: PMC9912378 DOI: 10.1038/s41568-022-00527-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/11/2022] [Indexed: 11/17/2022]
Abstract
Navigation through the bulk tumour, entry into the blood vasculature, survival in the circulation, exit at distant sites and resumption of proliferation are all steps necessary for tumour cells to successfully metastasize. The ability of tumour cells to complete these steps is highly dependent on the timing and sequence of the interactions that these cells have with the tumour microenvironment (TME), including stromal cells, the extracellular matrix and soluble factors. The TME thus plays a major role in determining the overall metastatic phenotype of tumours. The complexity and cause-and-effect dynamics of the TME cannot currently be recapitulated in vitro or inferred from studies of fixed tissue, and are best studied in vivo, in real time and at single-cell resolution. Intravital imaging (IVI) offers these capabilities, and recent years have been a time of immense growth and innovation in the field. Here we review some of the recent advances in IVI of mammalian models of cancer and describe how IVI is being used to understand cancer progression and metastasis, and to develop novel treatments and therapies. We describe new techniques that allow access to a range of tissue and cancer types, novel fluorescent reporters and biosensors that allow fate mapping and the probing of functional and phenotypic states, and the clinical applications that have arisen from applying these techniques, reporters and biosensors to study cancer. We finish by presenting some of the challenges that remain in the field, how to address them and future perspectives.
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Affiliation(s)
- David Entenberg
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
| | - Maja H Oktay
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
| | - John S Condeelis
- Gruss Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Surgery, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
- Department of Cell Biology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA.
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16
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Paredes-Espinosa MB, Paluh JL. Human stem cell-derived neurons and neural circuitry therapeutics: Next frontier in spinal cord injury repair. Exp Biol Med (Maywood) 2022; 247:2142-2151. [PMID: 35974701 PMCID: PMC9837306 DOI: 10.1177/15353702221114099] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Spinal cord injury (SCI) remains a life-altering event that devastates those injured and the families that support them. Numerous laboratories are engaged in preclinical and clinical trials to repair the injured spinal cord with stem cell-derived therapeutics. A new developmental paradigm reveals early bifurcation of brain or trunk neurons in mammals via neuromesodermal progenitors (NMPs) relevant to therapies requiring homotypic spinal cord neural populations. Human-induced pluripotent stem cell (hiPSC) NMP-derived spinal motor neurons generated ex vivo following this natural developmental route demonstrate robust survival in vivo when delivered as suspension grafts or as in vitro preformed encapsulated neuronal circuitry when transplanted into a rat C4-C5 hemicontusion injury site. Use of in vitro matured neurons avoids in vivo differentiation challenges of using pluripotent hiPSC or multipotent neural stem cell (NSC) or mesenchymal stem cell therapeutics. In this review, we provide an injury to therapeutics overview focusing on how stem cell and developmental fields are merging to generate exquisitely matched spinal motor neurons for SCI therapeutic studies. The complexity of the SCI microenvironment generated by trauma to neurons and vasculature, along with infiltrating inflammatory cells and scarring, underlies the challenging cytokine microenvironment that therapeutic cells encounter. An overview of evolving but limited stem cell-based SCI therapies that have progressed from preclinical to clinical trials illustrates the challenges and need for additional stem cell-based therapeutic approaches. The focus here on neurons describes how NMP-based neurotechnologies are advancing parallel strategies such as transplantation of preformed neuronal circuitry as well as human in vitro gastruloid multicellular models of trunk central and peripheral nervous system integration with organs. NMP-derived neurons are expected to be powerful drivers of the next generation of SCI therapeutics and integrate well with combination therapies that may utilize alternate biomimetic scaffolds for bridging injuries or flexible biodegradable electronics for electrostimulation.
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17
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Li B, Chen Q, Xi L. An artificial bone window for long-term photoacoustic monitoring of bone recovery. JOURNAL OF BIOPHOTONICS 2022; 15:e202200196. [PMID: 36054183 DOI: 10.1002/jbio.202200196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/30/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
Blood vessels that deliver nutrients and oxygen over the entire body is essential for bone homeostasis. Especially, for the bone recovery, long-term in vivo vascular imaging is desirable. Here, we propose an optical and ultrasonic transparent bone window, which allows repeated, chronic monitoring of bone angiogenesis in mouse tibia defect. A metal ring with an outer diameter of 2 mm and an inner diameter of 1 mm is bonded with a silicone-based polydimethylsiloxane (PDMS) film and cover the bone surface, which can effectively eliminate the inflammation caused by repeated wound opening before imaging. We make a bone defect model in mouse tibia, and employ an optical resolution photoacoustic microscopy (ORPAM) to provide a high-resolution, label-free, long-term, in vivo observation of the bone vascularization during the bone defect healing. The results suggest that the artificial bone window can remain stable for inspection and play positive role for bone repair.
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Affiliation(s)
- Baochen Li
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Qian Chen
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
| | - Lei Xi
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Southern University of Science and Technology, Shenzhen, Guangdong, China
- Shenzhen Bay Laboratory, Shenzhen, Guangdong, China
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18
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Scheele CLGJ, Herrmann D, Yamashita E, Celso CL, Jenne CN, Oktay MH, Entenberg D, Friedl P, Weigert R, Meijboom FLB, Ishii M, Timpson P, van Rheenen J. Multiphoton intravital microscopy of rodents. NATURE REVIEWS. METHODS PRIMERS 2022; 2:89. [PMID: 37621948 PMCID: PMC10449057 DOI: 10.1038/s43586-022-00168-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/12/2022] [Indexed: 08/26/2023]
Abstract
Tissues are heterogeneous with respect to cellular and non-cellular components and in the dynamic interactions between these elements. To study the behaviour and fate of individual cells in these complex tissues, intravital microscopy (IVM) techniques such as multiphoton microscopy have been developed to visualize intact and live tissues at cellular and subcellular resolution. IVM experiments have revealed unique insights into the dynamic interplay between different cell types and their local environment, and how this drives morphogenesis and homeostasis of tissues, inflammation and immune responses, and the development of various diseases. This Primer introduces researchers to IVM technologies, with a focus on multiphoton microscopy of rodents, and discusses challenges, solutions and practical tips on how to perform IVM. To illustrate the unique potential of IVM, several examples of results are highlighted. Finally, we discuss data reproducibility and how to handle big imaging data sets.
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Affiliation(s)
- Colinda L. G. J. Scheele
- Laboratory for Intravital Imaging and Dynamics of Tumor Progression, VIB Center for Cancer Biology, KU Leuven, Leuven, Belgium
- Department of Oncology, KU Leuven, Leuven, Belgium
| | - David Herrmann
- Cancer Ecosystems Program, Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Department, Sydney, New South Wales, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Erika Yamashita
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, Japan
- WPI-Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Laboratory of Bioimaging and Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Cristina Lo Celso
- Department of Life Sciences and Centre for Hematology, Imperial College London, London, UK
- Sir Francis Crick Institute, London, UK
| | - Craig N. Jenne
- Snyder Institute for Chronic Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Maja H. Oktay
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - David Entenberg
- Department of Pathology, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
- Gruss-Lipper Biophotonics Center, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
- Integrated Imaging Program, Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, USA
| | - Peter Friedl
- Department of Cell Biology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Centre, Nijmegen, Netherlands
- David H. Koch Center for Applied Genitourinary Cancers, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Roberto Weigert
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - Franck L. B. Meijboom
- Department of Population Health Sciences, Sustainable Animal Stewardship, Faculty of Veterinary Medicine, Utrecht University, Utrecht, Netherlands
- Faculty of Humanities, Ethics Institute, Utrecht University, Utrecht, Netherlands
| | - Masaru Ishii
- Department of Immunology and Cell Biology, Graduate School of Medicine and Frontier Biosciences, Osaka University, Osaka, Japan
- WPI-Immunology Frontier Research Center, Osaka University, Osaka, Japan
- Laboratory of Bioimaging and Drug Discovery, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Paul Timpson
- Cancer Ecosystems Program, Garvan Institute of Medical Research and The Kinghorn Cancer Centre, Cancer Department, Sydney, New South Wales, Australia
- St. Vincent’s Clinical School, Faculty of Medicine, UNSW Sydney, Sydney, New South Wales, Australia
| | - Jacco van Rheenen
- Division of Molecular Pathology, The Netherlands Cancer Institute, Amsterdam, Netherlands
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, Amsterdam, Netherlands
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19
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Wagner LE, Melnyk O, Duffett BE, Linnemann AK. Mouse models and human islet transplantation sites for intravital imaging. Front Endocrinol (Lausanne) 2022; 13:992540. [PMID: 36277698 PMCID: PMC9579277 DOI: 10.3389/fendo.2022.992540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 09/09/2022] [Indexed: 01/12/2023] Open
Abstract
Human islet transplantations into rodent models are an essential tool to aid in the development and testing of islet and cellular-based therapies for diabetes prevention and treatment. Through the ability to evaluate human islets in an in vivo setting, these studies allow for experimental approaches to answer questions surrounding normal and disease pathophysiology that cannot be answered using other in vitro and in vivo techniques alone. Intravital microscopy enables imaging of tissues in living organisms with dynamic temporal resolution and can be employed to measure biological processes in transplanted human islets revealing how experimental variables can influence engraftment, and transplant survival and function. A key consideration in experimental design for transplant imaging is the surgical placement site, which is guided by the presence of vasculature to aid in functional engraftment of the islets and promote their survival. Here, we review transplantation sites and mouse models used to study beta cell biology in vivo using intravital microscopy and we highlight fundamental observations made possible using this methodology.
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Affiliation(s)
- Leslie E. Wagner
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Olha Melnyk
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Bryce E. Duffett
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Amelia K. Linnemann
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, United States
- Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN, United States
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20
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In vivo metabolic imaging identifies lipid vulnerability in a preclinical model of Her2+/Neu breast cancer residual disease and recurrence. NPJ Breast Cancer 2022; 8:111. [PMID: 36163365 PMCID: PMC9512922 DOI: 10.1038/s41523-022-00481-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 09/16/2022] [Indexed: 11/08/2022] Open
Abstract
Recurrent cancer cells that evade therapy is a leading cause of death in breast cancer patients. This risk is high for women showing an overexpression of human epidermal growth factor receptor 2 (Her2). Cells that persist can rely on different substrates for energy production relative to their primary tumor counterpart. Here, we characterize metabolic reprogramming related to tumor dormancy and recurrence in a doxycycline-induced Her2+/Neu model of breast cancer with varying times to recurrence using longitudinal fluorescence microscopy. Glucose uptake (2-NBDG) and mitochondrial membrane potential (TMRE) imaging metabolically phenotype mammary tumors as they transition to regression, dormancy, and recurrence. “Fast-recurrence” tumors (time to recurrence ~55 days), transition from glycolysis to mitochondrial metabolism during regression and this persists upon recurrence. “Slow-recurrence” tumors (time to recurrence ~100 days) rely on both glycolysis and mitochondrial metabolism during recurrence. The increase in mitochondrial activity in fast-recurrence tumors is attributed to a switch from glucose to fatty acids as the primary energy source for mitochondrial metabolism. Consequently, when fast-recurrence tumors receive treatment with a fatty acid inhibitor, Etomoxir, tumors report an increase in glucose uptake and lipid synthesis during regression. Treatment with Etomoxir ultimately prolongs survival. We show that metabolic reprogramming reports on tumor recurrence characteristics, particularly at time points that are essential for actionable targets. The temporal characteristics of metabolic reprogramming will be critical in determining the use of an appropriate timing for potential therapies; namely, the notion that metabolic-targeted inhibition during regression reports long-term therapeutic benefit.
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21
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Assessment of MRI to estimate metastatic dissemination risk and prometastatic effects of chemotherapy. NPJ Breast Cancer 2022; 8:101. [PMID: 36056005 PMCID: PMC9440218 DOI: 10.1038/s41523-022-00463-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 07/11/2022] [Indexed: 11/10/2022] Open
Abstract
Metastatic dissemination in breast cancer is regulated by specialized intravasation sites called “tumor microenvironment of metastasis” (TMEM) doorways, composed of a tumor cell expressing the actin-regulatory protein Mena, a perivascular macrophage, and an endothelial cell, all in stable physical contact. High TMEM doorway number is associated with an increased risk of distant metastasis in human breast cancer and mouse models of breast carcinoma. Here, we developed a novel magnetic resonance imaging (MRI) methodology, called TMEM Activity-MRI, to detect TMEM-associated vascular openings that serve as the portal of entry for cancer cell intravasation and metastatic dissemination. We demonstrate that TMEM Activity-MRI correlates with primary tumor TMEM doorway counts in both breast cancer patients and mouse models, including MMTV-PyMT and patient-derived xenograft models. In addition, TMEM Activity-MRI is reduced in mouse models upon treatment with rebastinib, a specific and potent TMEM doorway inhibitor. TMEM Activity-MRI is an assay that specifically measures TMEM-associated vascular opening (TAVO) events in the tumor microenvironment, and as such, can be utilized in mechanistic studies investigating molecular pathways of cancer cell dissemination and metastasis. Finally, we demonstrate that TMEM Activity-MRI increases upon treatment with paclitaxel in mouse models, consistent with prior observations that chemotherapy enhances TMEM doorway assembly and activity in human breast cancer. Our findings suggest that TMEM Activity-MRI is a promising precision medicine tool for localized breast cancer that could be used as a non-invasive test to determine metastatic risk and serve as an intermediate pharmacodynamic biomarker to monitor therapeutic response to agents that block TMEM doorway-mediated dissemination.
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22
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Ko J, Lucas K, Kohler R, Halabi EA, Wilkovitsch M, Carlson JCT, Weissleder R. In Vivo Click Chemistry Enables Multiplexed Intravital Microscopy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200064. [PMID: 35750648 PMCID: PMC9405492 DOI: 10.1002/advs.202200064] [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: 01/04/2022] [Revised: 04/25/2022] [Indexed: 05/14/2023]
Abstract
The ability to observe cells in live organisms is essential for understanding their function in complex in vivo milieus. A major challenge today has been the limited ability to perform higher multiplexing beyond four to six colors to define cell subtypes in vivo. Here, a click chemistry-based strategy is presented for higher multiplexed in vivo imaging in mouse models. The method uses a scission-accelerated fluorophore exchange (SAFE), which exploits a highly efficient bioorthogonal mechanism to completely remove fluorescent signal from antibody-labeled cells in vivo. It is shown that the SAFE-intravital microscopy imaging method allows 1) in vivo staining of specific cell types in dorsal and cranial window chambers of mice, 2) complete un-staining in minutes, 3) in vivo click chemistries at lower (µm) and thus non-toxic concentrations, and 4) the ability to perform in vivo cyclic imaging. The potential utility of the method is demonstrated by 12 color imaging of immune cells in live mice.
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Affiliation(s)
- Jina Ko
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Kilean Lucas
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Rainer Kohler
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Elias A. Halabi
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Martin Wilkovitsch
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
| | - Jonathan C. T. Carlson
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
- Department of MedicineMassachusetts General HospitalHarvard Medical SchoolBostonMA02114USA
| | - Ralph Weissleder
- Center for Systems BiologyMassachusetts General Hospital185 Cambridge St, CPZN 5206BostonMA02114USA
- Department of Systems BiologyHarvard Medical School200 Longwood AveBostonMA02115USA
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23
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Xie W, Lorenz M, Poosch F, Palme R, Zechner D, Vollmar B, Grambow E, Strüder D. 3D-printed lightweight dorsal skin fold chambers from PEEK reduce chamber-related animal distress. Sci Rep 2022; 12:11599. [PMID: 35803979 PMCID: PMC9270450 DOI: 10.1038/s41598-022-13924-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 05/30/2022] [Indexed: 11/16/2022] Open
Abstract
The dorsal skinfold chamber is one of the most important in vivo models for repetitive longitudinal assessment of microcirculation and inflammation. This study aimed to refine this model by introducing a new lightweight chamber made from polyetheretherketone (PEEK). Body weight, burrowing activity, distress, faecal corticosterone metabolites and the tilting angle of the chambers were analysed in mice carrying either a standard titanium chamber or a PEEK chamber. Data was obtained before chamber preparation and over a postoperative period of three weeks. In the early postoperative phase, reduced body weight and increased faecal corticosterone metabolites were found in mice with titanium chambers. Chamber tilting and tilting-related complications were reduced in mice with PEEK chambers. The distress score was significantly increased in both groups after chamber preparation, but only returned to preoperative values in mice with PEEK chambers. In summary, we have shown that light chambers reduce animal distress and may extend the maximum dorsal skinfold chamber observation time. Chambers made of PEEK are particularly suitable for this purpose: They are autoclavable, sufficiently stable to withstand rodent bites, inexpensive, and widely available through 3D printing.
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Affiliation(s)
- Wentao Xie
- Institute for Experimental Surgery, Rostock University Medical Center, 18057, Rostock, Germany.,Department of Vascular and Thyroid Surgery, Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Matthias Lorenz
- Faculty of Engineering, Technology, Business and Design, University of Applied Sciences, 23966, Wismar, Germany
| | - Friederike Poosch
- Department of Otorhinolaryngology, Head and Neck Surgery "Otto Koerner", Rostock University Medical Center, 18057, Rostock, Germany
| | - Rupert Palme
- Unit of Physiology, Pathophysiology and Experimental Endocrinology, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, 1210, Vienna, Austria
| | - Dietmar Zechner
- Institute for Experimental Surgery, Rostock University Medical Center, 18057, Rostock, Germany
| | - Brigitte Vollmar
- Institute for Experimental Surgery, Rostock University Medical Center, 18057, Rostock, Germany
| | - Eberhard Grambow
- Institute for Experimental Surgery, Rostock University Medical Center, 18057, Rostock, Germany. .,Department of General, Visceral, Thoracic, Vascular and Transplantation Surgery, Rostock University Medical Center, Schillingallee 35, 18057, Rostock, Germany.
| | - Daniel Strüder
- Institute for Experimental Surgery, Rostock University Medical Center, 18057, Rostock, Germany.,Department of Otorhinolaryngology, Head and Neck Surgery "Otto Koerner", Rostock University Medical Center, 18057, Rostock, Germany
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24
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Margarido AS, Uceda-Castro R, Hahn K, de Bruijn R, Kester L, Hofland I, Lohuis J, Seinstra D, Broeks A, Jonkers J, Broekman MLD, Wesseling P, Vennin C, Vizoso M, van Rheenen J. Epithelial-to-Mesenchymal Transition Drives Invasiveness of Breast Cancer Brain Metastases. Cancers (Basel) 2022; 14:cancers14133115. [PMID: 35804890 PMCID: PMC9264851 DOI: 10.3390/cancers14133115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 06/17/2022] [Accepted: 06/22/2022] [Indexed: 12/30/2022] Open
Abstract
(1) Background: an increasing number of breast cancer patients develop lethal brain metastases (BM). The complete removal of these tumors by surgery becomes complicated when cells infiltrate into the brain parenchyma. However, little is known about the nature of these invading cells in breast cancer brain metastasis (BCBM). (2) Methods: we use intravital microscopy through a cranial window to study the behavior of invading cells in a mouse model of BCBM. (3) Results: we demonstrate that BCBM cells that escape from the metastatic mass and infiltrate into brain parenchyma undergo epithelial-to-mesenchymal transition (EMT). Moreover, cells undergoing EMT revert to an epithelial state when growing tumor masses in the brain. Lastly, through multiplex immunohistochemistry, we confirm the presence of these infiltrative cells in EMT in patient samples. (4) Conclusions: together, our data identify the critical role of EMT in the invasive behavior of BCBM, which warrants further consideration to target those cells when treating BCBM.
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Affiliation(s)
- Andreia S. Margarido
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Rebeca Uceda-Castro
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Kerstin Hahn
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Roebi de Bruijn
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
- Division of Molecular Carcinogenesis, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
| | - Lennart Kester
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Ingrid Hofland
- Core Facility Molecular Pathology & Biobanking, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (I.H.); (A.B.)
| | - Jeroen Lohuis
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Danielle Seinstra
- Department of Pathology, Amsterdam University Medical Centers/VUmc and Brain Tumor Center Amsterdam, 1081 HV Amsterdam, The Netherlands; (D.S.); (P.W.)
| | - Annegien Broeks
- Core Facility Molecular Pathology & Biobanking, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (I.H.); (A.B.)
| | - Jos Jonkers
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Marike L. D. Broekman
- Department of Neurosurgery, Leiden University Medical Center, 2333 ZA Leiden, The Netherlands;
- Department of Neurosurgery, Haaglanden Medical Center, Lijnbaan, 2512 VA The Hague, The Netherlands
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Pieter Wesseling
- Department of Pathology, Amsterdam University Medical Centers/VUmc and Brain Tumor Center Amsterdam, 1081 HV Amsterdam, The Netherlands; (D.S.); (P.W.)
- Laboratory for Childhood Cancer Pathology, Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands
| | - Claire Vennin
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
| | - Miguel Vizoso
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
- Correspondence: (M.V.); (J.v.R.)
| | - Jacco van Rheenen
- Division of Molecular Pathology, Oncode Institute, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands; (A.S.M.); (R.U.-C.); (K.H.); (R.d.B.); (L.K.); (J.L.); (J.J.); (C.V.)
- Correspondence: (M.V.); (J.v.R.)
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25
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Carabaña C, Lloyd-Lewis B. Multidimensional Fluorescence Imaging of Embryonic and Postnatal Mammary Gland Development. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2471:19-48. [PMID: 35175590 DOI: 10.1007/978-1-0716-2193-6_2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Multidimensional fluorescence imaging represents a powerful approach for studying the dynamic cellular processes underpinning the development, function, and maintenance of the mammary gland. Here, we describe key multidimensional imaging strategies that enable visualization of mammary branching morphogenesis and epithelial cell fate dynamics during postnatal and embryonic mammary gland development. These include 4-dimensional intravital microscopy and ex vivo imaging of embryonic mammary cultures, in addition to methods that facilitate 3-dimensional imaging of the ductal epithelium at single-cell resolution within its native stroma. Collectively, these approaches provide a window into mammary developmental dynamics, and the perturbations underlying tissue dysfunction and disease.
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Affiliation(s)
- Claudia Carabaña
- Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, Paris, France.,Sorbonne University, UPMC University of Paris VI, Paris, France
| | - Bethan Lloyd-Lewis
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, UK.
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26
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Engelbrecht L, Ollewagen T, de Swardt D. Advances in fluorescence microscopy can reveal important new aspects of tissue regeneration. Biochimie 2022; 196:194-202. [DOI: 10.1016/j.biochi.2022.02.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 01/19/2022] [Accepted: 02/02/2022] [Indexed: 12/12/2022]
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27
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Pei P, Hu H, Chen Y, Wang S, Chen J, Ming J, Yang Y, Sun C, Zhao S, Zhang F. NIR-II Ratiometric Lanthanide-Dye Hybrid Nanoprobes Doped Bioscaffolds for In Situ Bone Repair Monitoring. NANO LETTERS 2022; 22:783-791. [PMID: 35005958 DOI: 10.1021/acs.nanolett.1c04356] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In situ monitoring of tissue regeneration progression is of primary importance to basic medical research and clinical transformation. Despite significant progress in the field of tissue engineering and regenerative medicine, few technologies have been established to in situ inspect the regenerative process. Here, we present an integrated second near-infrared (NIR-II, 1000-1700 nm) window in vivo imaging strategy based on 3D-printed bioactive glass scaffolds doped with NIR-II ratiometric lanthanide-dye hybrid nanoprobes, allowing for in situ monitoring of the early inflammation, angiogenesis, and implant degradation during mouse skull repair. The functional bioactive glass scaffolds contribute to more effective bone regeneration because of their excellent angiogenic and osteogenic activities. The reliability of ratiometric fluorescence imaging, coupled with low autofluoresence in the NIR-II window, facilitates the accuracy of in vivo inflammation detection and high-resolution visualization of neovascularization and implant degradation in deep tissue.
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Affiliation(s)
- Peng Pei
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Hongxing Hu
- Department of Orthopedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Ying Chen
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Shangfeng Wang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Jing Chen
- Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Jiang Ming
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Yiwei Yang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Caixia Sun
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
| | - Shichang Zhao
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, China
| | - Fan Zhang
- Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, State Key Laboratory of Molecular Engineering of Polymers and iChem, Fudan University, Shanghai 200433, China
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28
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Maiorino L, Shevik M, Adrover JM, Han X, Georgas E, Wilkinson JE, Seidner H, Foerschner L, Tuveson DA, Qin YX, Egeblad M. Longitudinal Intravital Imaging Through Clear Silicone Windows. JOURNAL OF VISUALIZED EXPERIMENTS : JOVE 2022:10.3791/62757. [PMID: 35068483 PMCID: PMC9286001 DOI: 10.3791/62757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Intravital microscopy (IVM) enables visualization of cell movement, division, and death at single-cell resolution. IVM through surgically inserted imaging windows is particularly powerful because it allows longitudinal observation of the same tissue over days to weeks. Typical imaging windows comprise a glass coverslip in a biocompatible metal frame sutured to the mouse's skin. These windows can interfere with the free movement of the mice, elicit a strong inflammatory response, and fail due to broken glass or torn sutures, any of which may necessitate euthanasia. To address these issues, windows for long-term abdominal organ and mammary gland imaging were developed from a thin film of polydimethylsiloxane (PDMS), an optically clear silicone polymer previously used for cranial imaging windows. These windows can be glued directly to the tissues, reducing the time needed for insertion. PDMS is flexible, contributing to its durability in mice over time-up to 35 days have been tested. Longitudinal imaging is imaging of the same tissue region during separate sessions. A stainless-steel grid was embedded within the windows to localize the same region, allowing the visualization of dynamic processes (like mammary gland involution) at the same locations, days apart. This silicone window also allowed monitoring of single disseminated cancer cells developing into micro-metastases over time. The silicone windows used in this study are simpler to insert than metal-framed glass windows and cause limited inflammation of the imaged tissues. Moreover, embedded grids allow for straightforward tracking of the same tissue region in repeated imaging sessions.
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Affiliation(s)
- Laura Maiorino
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA,Cold Spring Harbor Laboratory School of Biological
Sciences, Cold Spring Harbor, NY 11724, USA,Koch Institute for Integrative Cancer Research,
Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Margaret Shevik
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA,Medical Scientist Training Program, School of Medicine,
Stony Brook University, Stony Brook, NY 11794, USA,Graduate Program in Pharmacology, Stony Brook University,
Stony Brook, NY 11794, USA
| | - José M. Adrover
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA
| | - Xiao Han
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA,Graduate Program in Genetics, Stony Brook University, Stony
Brook, NY 11794, USA
| | - Elias Georgas
- Graduate Program in Biomedical Engineering, Stony Brook
University, NY 11794, USA,Department of Biomedical Engineering, Stony Brook
University, Stony Brook, NY 11794, USA
| | | | - Harrison Seidner
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA
| | | | - David A. Tuveson
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook
University, Stony Brook, NY 11794, USA
| | - Mikala Egeblad
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY
11724, USA
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29
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Matvey DO, Ng TSC, Miller MA. Confocal Imaging of Single-Cell Signaling in Orthotopic Models of Ovarian Cancer. Methods Mol Biol 2022; 2424:295-315. [PMID: 34918302 DOI: 10.1007/978-1-0716-1956-8_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ovarian cancer (OVCA) is frequently detected at late stages of disease, often with dissemination throughout the peritoneal cavity surface, abdomen, and ascites fluid. Tumor signaling via mitogen-activated protein kinase (MAPK) and phosphoinositide 3-kinase (PI3K) pathways can promote OVCA progression and depend on local microenvironmental cues. To better study OVCA in situ within native tissue contexts, here we describe confocal microscopy techniques to image mouse models of intraperitoneal disease at a single-cell resolution. As a proof of principle demonstration, examples are highlighted for simultaneously imaging tumor vascularization, infiltrating and often immunosuppressive immune cells (tumor-associated macrophages), and OVCA kinase activity.
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Affiliation(s)
- Dylan O Matvey
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA, USA
| | - Thomas S C Ng
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA, USA
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Miles A Miller
- Center for Systems Biology, Massachusetts General Hospital Research Institute, Boston, MA, USA.
- Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA.
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30
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Hickey SM, Ung B, Bader C, Brooks R, Lazniewska J, Johnson IRD, Sorvina A, Logan J, Martini C, Moore CR, Karageorgos L, Sweetman MJ, Brooks DA. Fluorescence Microscopy-An Outline of Hardware, Biological Handling, and Fluorophore Considerations. Cells 2021; 11:35. [PMID: 35011596 PMCID: PMC8750338 DOI: 10.3390/cells11010035] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/16/2022] Open
Abstract
Fluorescence microscopy has become a critical tool for researchers to understand biological processes at the cellular level. Micrographs from fixed and live-cell imaging procedures feature in a plethora of scientific articles for the field of cell biology, but the complexities of fluorescence microscopy as an imaging tool can sometimes be overlooked or misunderstood. This review seeks to cover the three fundamental considerations when designing fluorescence microscopy experiments: (1) hardware availability; (2) amenability of biological models to fluorescence microscopy; and (3) suitability of imaging agents for intended applications. This review will help equip the reader to make judicious decisions when designing fluorescence microscopy experiments that deliver high-resolution and informative images for cell biology.
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Affiliation(s)
- Shane M. Hickey
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (C.B.); (R.B.); (J.L.); (I.R.D.J.); (A.S.); (J.L.); (C.M.); (C.R.M.); (L.K.); (M.J.S.); (D.A.B.)
| | - Ben Ung
- Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (C.B.); (R.B.); (J.L.); (I.R.D.J.); (A.S.); (J.L.); (C.M.); (C.R.M.); (L.K.); (M.J.S.); (D.A.B.)
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31
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Lüönd F, Sugiyama N, Bill R, Bornes L, Hager C, Tang F, Santacroce N, Beisel C, Ivanek R, Bürglin T, Tiede S, van Rheenen J, Christofori G. Distinct contributions of partial and full EMT to breast cancer malignancy. Dev Cell 2021; 56:3203-3221.e11. [PMID: 34847378 DOI: 10.1016/j.devcel.2021.11.006] [Citation(s) in RCA: 162] [Impact Index Per Article: 54.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 09/13/2021] [Accepted: 11/05/2021] [Indexed: 12/13/2022]
Abstract
Epithelial-mesenchymal transition (EMT) is a transient, reversible process of cell de-differentiation where cancer cells transit between various stages of an EMT continuum, including epithelial, partial EMT, and mesenchymal cell states. We have employed Tamoxifen-inducible dual recombinase lineage tracing systems combined with live imaging and 5-cell RNA sequencing to track cancer cells undergoing partial or full EMT in the MMTV-PyMT mouse model of metastatic breast cancer. In primary tumors, cancer cells infrequently undergo EMT and mostly transition between epithelial and partial EMT states but rarely reach full EMT. Cells undergoing partial EMT contribute to lung metastasis and chemoresistance, whereas full EMT cells mostly retain a mesenchymal phenotype and fail to colonize the lungs. However, full EMT cancer cells are enriched in recurrent tumors upon chemotherapy. Hence, cancer cells in various stages of the EMT continuum differentially contribute to hallmarks of breast cancer malignancy, such as tumor invasion, metastasis, and chemoresistance.
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Affiliation(s)
- Fabiana Lüönd
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Nami Sugiyama
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland.
| | - Ruben Bill
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Laura Bornes
- Division of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, 1006 BE Amsterdam, the Netherlands
| | - Carolina Hager
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Fengyuan Tang
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Natascha Santacroce
- Department of Biosystems Science and Engineering, ETH Zürich, 4058 Basel, Switzerland
| | - Christian Beisel
- Department of Biosystems Science and Engineering, ETH Zürich, 4058 Basel, Switzerland
| | - Robert Ivanek
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Thomas Bürglin
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Stefanie Tiede
- Department of Biomedicine, University of Basel, 4058 Basel, Switzerland
| | - Jacco van Rheenen
- Division of Molecular Pathology, Oncode Institute, Netherlands Cancer Institute, 1006 BE Amsterdam, the Netherlands
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32
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Tan Y, Tey HL, Chong SZ, Ng LG. Skin-ny deeping: Uncovering immune cell behavior and function through imaging techniques. Immunol Rev 2021; 306:271-292. [PMID: 34859448 DOI: 10.1111/imr.13049] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 11/11/2021] [Indexed: 12/16/2022]
Abstract
As the largest organ of the body, the skin is a key barrier tissue with specialized structures where ongoing immune surveillance is critical for protecting the body from external insults. The innate immune system acts as first-responders in a coordinated manner to react to injury or infections, and recent developments in intravital imaging techniques have made it possible to delineate dynamic immune cell responses in a spatiotemporal manner. We review here key studies involved in understanding neutrophil, dendritic cell and macrophage behavior in skin and further discuss how this knowledge collectively highlights the importance of interactions and cellular functions in a systems biology manner. Furthermore, we will review emerging imaging technologies such as high-content proteomic screening, spatial transcriptomics and three-dimensional volumetric imaging and how these techniques can be integrated to provide a systems overview of the immune system that will further our current knowledge and lead to potential exciting discoveries in the upcoming decades.
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Affiliation(s)
- Yingrou Tan
- Singapore Immunology Network, Singapore, Singapore.,National Skin Centre, National Healthcare Group, Singapore, Singapore
| | - Hong Liang Tey
- National Skin Centre, National Healthcare Group, Singapore, Singapore.,Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, Singapore
| | | | - Lai Guan Ng
- Singapore Immunology Network, Singapore, Singapore.,National Skin Centre, National Healthcare Group, Singapore, Singapore.,Department of Microbiology, Yong Loo Lin School of Medicine, National University of Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
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33
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Zhang C, Feng W. Assessment of tissue-specific changes in structure and function induced by in vivo skin/skull optical clearing techniques. Lasers Surg Med 2021; 54:447-458. [PMID: 34750826 DOI: 10.1002/lsm.23489] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 10/14/2021] [Accepted: 10/28/2021] [Indexed: 12/18/2022]
Abstract
BACKGROUND OBJECTIVES Newly developed in vivo skin and skull optical clearing techniques can greatly improve the optical imaging performance, showing great advantages and clinical prospects. However, there is a poor understanding of in vivo optical clearing-induced changes in the skin and skull. MATERIALS AND METHODS Here, we employed in vivo skin/skull optical clearing techniques to improve the optical coherence tomography (OCT) imaging quality. And we also used polarization-sensitive OCT to monitor the dynamic changes in the polarization characteristics of the skin and skull during in vivo optical clearing processes. Two-photon imaging was used to evaluate changes in tissue barrier function and structure. Additionally, Raman spectra were employed for assessing the changes of each component in the skin and skull before and after optical clearing treatment. RESULTS The results indicated that the polarization states of the skin and skull were altered with the usages of optical clearing agents. And the barrier permeability and collagen fiber distribution of them became disordered. Furthermore, the Raman spectra of tissue demonstrated that the applications of in vivo tissue optical clearing methods could lead to the reduction of proteins, lipids, and inorganic salts in these two organs. Interestingly, after recovery treatment, the structure and function of the skin and skull could almost recover to the initial states. CONCLUSION In vivo tissue optical clearing can lead to changes in the structure and function of tissue, which was reversible to some extent. This study plays an important role in revealing the underlying mechanisms of tissue optical clearing techniques; moreover, it is conducive to the development and optimization of a novel in vivo tissue optical clearing approaches in future.
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Affiliation(s)
- Chao Zhang
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong, Zhanjiang, China.,Zhanjiang Central Hospital, Guangdong Medical University, Guangdong, Zhanjiang, China
| | - Wei Feng
- Zhanjiang Institute of Clinical Medicine, Central People's Hospital of Zhanjiang, Guangdong, Zhanjiang, China.,Zhanjiang Central Hospital, Guangdong Medical University, Guangdong, Zhanjiang, China
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34
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Chen G, Zhang F, Wang L, Feng Z. Isoflurane alleviates hypoxia/reoxygenation induced myocardial injury by reducing miR-744 mediated SIRT6. Toxicol Mech Methods 2021; 32:235-242. [PMID: 34663177 DOI: 10.1080/15376516.2021.1995556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The objective of this study was to investigate the role of miR-744 and its target genes in ISO protection against hypoxia/reoxygenation (H/R) induced myocardial injury. METHODS Rat cardiomyocytes H9c2 was used to establish an H/R model in vitro, and the level of miR-744 mRNA was detected by fluorescence quantitative PCR. CCK-8 and flow cytometry was used to detected cell viability and apoptosis. Myocardial injury markers CK-MB, cTnI, and LDH were detected by enzyme-linked immunosorbent assay (ELISA). Online bioinformatics software miRDB and miRWalk predicts miR-744 target and its potential binding site, and verifies the target by luciferase reporter assay. RESULTS After H/R induction, miR-744 mRNA level was remarkedly increased, cell viability was deceased, and apoptosis was increased (p < 0.05). Myocardial injury markers CK-MB, cTnI, and LDH expressions were also increased (p < 0.05). However, ISO pretreatment can significantly alleviate the decrease in cell viability induced by H/R, the increase of cell apoptosis, and the increase of myocardial injury markers, and it play a cardioprotective effect (p < 0.05). More importantly, elevated miR-744 remarkedly weakened the protective effect of ISO on H/R-induced myocardial injury, resulting in decreased cell viability, increased apoptosis, and elevated concentration of myocardial injury indicators (p < 0.05). Luciferase reporter assay confirmed that Sirtuins6 (SIRT6) is a potential target of miR-744 and decreased in H/R-induced myocardial injury, and ISO exposure can reverse its level (p < 0.05). CONCLUSION Our findings provide new insights that ISO pretreatment can remarkedly regulate miR-744 and its downstream target SIRT6 to mitigate myocardial injury induced by H/R.
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Affiliation(s)
- Guoqing Chen
- Anesthesia and Operation Centre, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Faqiang Zhang
- Anesthesia and Operation Centre, The First Medical Center, Chinese PLA General Hospital, Beijing, China.,School of Medicine, Nankai University, Tianjin, China
| | - Long Wang
- Department of Pain Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
| | - Zeguo Feng
- Department of Pain Medicine, The First Medical Center, Chinese PLA General Hospital, Beijing, China
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35
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Preclinical Studies in Small Animals for Advanced Drug Delivery Using Hyperthermia and Intravital Microscopy. Cancers (Basel) 2021; 13:cancers13205146. [PMID: 34680296 PMCID: PMC8534089 DOI: 10.3390/cancers13205146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/05/2021] [Accepted: 10/05/2021] [Indexed: 01/15/2023] Open
Abstract
This paper presents three devices suitable for the preclinical application of hyperthermia via the simultaneous high-resolution imaging of intratumoral events. (Pre)clinical studies have confirmed that the tumor micro-environment is sensitive to the application of local mild hyperthermia. Therefore, heating is a promising adjuvant to aid the efficacy of radiotherapy or chemotherapy. More so, the application of mild hyperthermia is a useful stimulus for triggered drug release from heat-sensitive nanocarriers. The response of thermosensitive nanoparticles to hyperthermia and ensuing intratumoral kinetics are considerably complex in both space and time. To obtain better insight into intratumoral processes, longitudinal imaging (preferable in high spatial and temporal resolution) is highly informative. Our devices are based on (i) an external electric heating adaptor for the dorsal skinfold model, (ii) targeted radiofrequency application, and (iii) a microwave antenna for heating of internal tumors. These models, while of some technical complexity, significantly add to the understanding of effects of mild hyperthermia warranting implementation in research on hyperthermia.
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Priester MI, Curto S, van Rhoon GC, ten Hagen TLM. External Basic Hyperthermia Devices for Preclinical Studies in Small Animals. Cancers (Basel) 2021; 13:cancers13184628. [PMID: 34572855 PMCID: PMC8470307 DOI: 10.3390/cancers13184628] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/09/2021] [Accepted: 09/10/2021] [Indexed: 02/07/2023] Open
Abstract
Simple Summary The application of mild hyperthermia can be beneficial for solid tumor treatment by induction of sublethal effects on a tissue- and cellular level. When designing a hyperthermia experiment, several factors should be taken into consideration. In this review, multiple elementary hyperthermia devices are described in detail to aid standardization of treatment design. Abstract Preclinical studies have shown that application of mild hyperthermia (40–43 °C) is a promising adjuvant to solid tumor treatment. To improve preclinical testing, enhance reproducibility, and allow comparison of the obtained results, it is crucial to have standardization of the available methods. Reproducibility of methods in and between research groups on the same techniques is crucial to have a better prediction of the clinical outcome and to improve new treatment strategies (for instance with heat-sensitive nanoparticles). Here we provide a preclinically oriented review on the use and applicability of basic hyperthermia systems available for solid tumor thermal treatment in small animals. The complexity of these techniques ranges from a simple, low-cost water bath approach, irradiation with light or lasers, to advanced ultrasound and capacitive heating devices.
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Affiliation(s)
- Marjolein I. Priester
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands;
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (S.C.); (G.C.v.R.)
| | - Sergio Curto
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (S.C.); (G.C.v.R.)
| | - Gerard C. van Rhoon
- Department of Radiotherapy, Erasmus MC Cancer Institute, University Medical Center Rotterdam, 3015 GD Rotterdam, The Netherlands; (S.C.); (G.C.v.R.)
| | - Timo L. M. ten Hagen
- Laboratory of Experimental Oncology, Department of Pathology, Erasmus University Medical Center, 3015 GD Rotterdam, The Netherlands;
- Correspondence:
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Padmanaban P, Chizari A, Knop T, Zhang J, Trikalitis VD, Koopman B, Steenbergen W, Rouwkema J. Assessment of flow within developing chicken vasculature and biofabricated vascularized tissues using multimodal imaging techniques. Sci Rep 2021; 11:18251. [PMID: 34521868 PMCID: PMC8440514 DOI: 10.1038/s41598-021-97008-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 08/19/2021] [Indexed: 11/21/2022] Open
Abstract
Fluid flow shear stresses are strong regulators for directing the organization of vascular networks. Knowledge of structural and flow dynamics information within complex vasculature is essential for tuning the vascular organization within engineered tissues, by manipulating flows. However, reported investigations of vascular organization and their associated flow dynamics within complex vasculature over time are limited, due to limitations in the available physiological pre-clinical models, and the optical inaccessibility and aseptic nature of these models. Here, we developed laser speckle contrast imaging (LSCI) and side-stream dark field microscopy (SDF) systems to map the vascular organization, spatio-temporal blood flow fluctuations as well as erythrocytes movements within individual blood vessels of developing chick embryo, cultured within an artificial eggshell system. By combining imaging data and computational simulations, we estimated fluid flow shear stresses within multiscale vasculature of varying complexity. Furthermore, we demonstrated the LSCI compatibility with bioengineered perfusable muscle tissue constructs, fabricated via molding techniques. The presented application of LSCI and SDF on perfusable tissues enables us to study the flow perfusion effects in a non-invasive fashion. The gained knowledge can help to use fluid perfusion in order to tune and control multiscale vascular organization within engineered tissues.
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Affiliation(s)
- Prasanna Padmanaban
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Ata Chizari
- Biomedical Photonic Imaging, Technical Medical Centre, Faculty of Science and Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Tom Knop
- Biomedical Photonic Imaging, Technical Medical Centre, Faculty of Science and Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Jiena Zhang
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Vasileios D Trikalitis
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Bart Koopman
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7500 AE, Enschede, The Netherlands
| | - Wiendelt Steenbergen
- Biomedical Photonic Imaging, Technical Medical Centre, Faculty of Science and Technology, University of Twente, 7500 AE, Enschede, The Netherlands.
| | - Jeroen Rouwkema
- Vascularization Lab, Department of Biomechanical Engineering, Technical Medical Centre, Faculty of Engineering Technology, University of Twente, 7500 AE, Enschede, The Netherlands.
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Arefev RA, Kiroy VN, Bulat NV, Petrushan MV, Burbelov MO, Sazhin SL, Vladimirskiy BM, Matukhno AE, Chechevatova VV, Semynina VG, Lysenko LV. Methods for calculating the stereotaxic coordinates of rat brain structures by pixel coordinates of the image obtained by confocal and two-photon laser scanning microscopy. J Neurosci Methods 2021; 361:109273. [PMID: 34224788 DOI: 10.1016/j.jneumeth.2021.109273] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 06/22/2021] [Accepted: 07/01/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND There is a challenge to determine stereotaxic coordinates of a target structure with the accuracy, comparable to their size, when imaging the rat brain through cranial windows using confocal (multiphoton) microscopy in vivo. Some methods based on the estimation of the linear displacement from the intersections of the cerebral vessels are most often used for these purposes, but their accuracy can be improved. NEW METHOD A new method for converting pixel coordinates of points of interest on an image obtained in two-photon microscopy into stereotaxic ones using quadratic approximation with L2 regularization has been developed. A comparative analysis of several methods for converting pixel coordinates into stereotaxic ones was carried out. The current study is aimed to select a method which minimizes the error of coordinate conversion within the a priori specified threshold value. RESULTS A method for determining the stereotaxic coordinates of each pixel in an image obtained by laser scanning in two-photon and / or confocal modes with an accuracy of several tens of microns is proposed. COMPARISON WITH EXISTING METHOD(S) It is shown that the error probability of the most common method based on calculating the points of interest coordinates as displacements relative to the selected vessels intersections can be reduced by using the quadratic approximation with L2 regularization. Our proposed method allows us to improve the accuracy of determining the coordinates of points of interest on 10-30 µm. CONCLUSIONS The proposed approach will be useful in research where precise positioning of microelectrodes, sensors, etc. for implantation in specified brain structures or groups of neurons determined by functional mapping is required.
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Affiliation(s)
- R A Arefev
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation.
| | - V N Kiroy
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - N V Bulat
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - M V Petrushan
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - M O Burbelov
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - S L Sazhin
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - B M Vladimirskiy
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - A E Matukhno
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - V V Chechevatova
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - V G Semynina
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
| | - L V Lysenko
- Southern Federal University, Scientific Research Center for Neurotechnology Russian Federation, 194 Stachki ave, Rostov-on-Don, Russian Federation
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Rebling J, Ben‐Yehuda Greenwald M, Wietecha M, Werner S, Razansky D. Long-Term Imaging of Wound Angiogenesis with Large Scale Optoacoustic Microscopy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2021; 8:2004226. [PMID: 34258153 PMCID: PMC8261523 DOI: 10.1002/advs.202004226] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 02/07/2021] [Indexed: 05/05/2023]
Abstract
Wound healing is a well-coordinated process, necessitating efficient formation of new blood vessels. Vascularization defects are therefore a major risk factor for chronic, non-healing wounds. The dynamics of mammalian tissue revascularization, vessel maturation, and remodeling remain poorly understood due to lack of suitable in vivo imaging tools. A label-free large-scale optoacoustic microscopy (LSOM) approach is developed for rapid, non-invasive, volumetric imaging of tissue regeneration over large areas spanning up to 50 mm with a depth penetration of 1.5 mm. Vascular networks in dorsal mouse skin and full-thickness excisional wounds are imaged with capillary resolution during the course of healing, revealing previously undocumented views of the angiogenesis process in an unperturbed wound environment. Development of an automatic analysis framework enables the identification of key features of wound angiogenesis, including vessel length, diameter, tortuosity, and angular alignment. The approach offers a versatile tool for preclinical research in tissue engineering and regenerative medicine, empowering label-free, longitudinal, high-throughput, and quantitative studies of the microcirculation in processes associated with normal and impaired vascular remodeling, and analysis of vascular responses to pharmacological interventions in vivo.
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Affiliation(s)
- Johannes Rebling
- Institute for Biomedical Engineering and Institute of Pharmacology and ToxicologyFaculty of MedicineUniversity of ZurichZurich8057Switzerland
- Institute for Biomedical EngineeringDepartment of Information Technology and Electrical EngineeringETH ZurichZurich8093Switzerland
| | | | - Mateusz Wietecha
- Institute of Molecular Health SciencesDepartment of BiologyETH ZurichZurich8093Switzerland
| | - Sabine Werner
- Institute of Molecular Health SciencesDepartment of BiologyETH ZurichZurich8093Switzerland
| | - Daniel Razansky
- Institute for Biomedical Engineering and Institute of Pharmacology and ToxicologyFaculty of MedicineUniversity of ZurichZurich8057Switzerland
- Institute for Biomedical EngineeringDepartment of Information Technology and Electrical EngineeringETH ZurichZurich8093Switzerland
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Wang S, Larina IV. In vivo dynamic 3D imaging of oocytes and embryos in the mouse oviduct. Cell Rep 2021; 36:109382. [PMID: 34260920 PMCID: PMC8344084 DOI: 10.1016/j.celrep.2021.109382] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Revised: 03/26/2021] [Accepted: 06/21/2021] [Indexed: 12/04/2022] Open
Abstract
Developmental biologists have always relied on imaging to shed light on dynamic cellular events. However, processes such as mammalian fertilization and embryogenesis are generally inaccessible for direct imaging. In consequence, how the oviduct (fallopian tube) facilitates the transport of gametes and preimplantation embryos continues to be unanswered. Here we present a combination of intravital window and optical coherence tomography for dynamic, volumetric, in vivo imaging of oocytes and embryos as they are transported through the mouse oviduct. We observed location-dependent circling, oscillating, and long-distance bi-directional movements of oocytes and embryos that suggest regulatory mechanisms driving transport and question established views in the field. This in vivo imaging approach can be combined with a variety of genetic and pharmacological manipulations for live functional analysis, bringing the potential to investigate reproductive physiology in its native state. Wang and Larina present in vivo volumetric imaging of oocytes and embryos as they are transported through the mouse oviduct with optical coherence tomography and an intravital microscopy. The study reveals complex dynamics of oocytes and embryos that suggest a regulatory role of cilia and oviductal contractions in driving the transport.
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Affiliation(s)
- Shang Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, USA.
| | - Irina V Larina
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston, TX 77030, USA.
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Jacquemin G, Benavente-Diaz M, Djaber S, Bore A, Dangles-Marie V, Surdez D, Tajbakhsh S, Fre S, Lloyd-Lewis B. Longitudinal high-resolution imaging through a flexible intravital imaging window. SCIENCE ADVANCES 2021; 7:7/25/eabg7663. [PMID: 34134982 PMCID: PMC8208712 DOI: 10.1126/sciadv.abg7663] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 04/30/2021] [Indexed: 05/03/2023]
Abstract
Intravital microscopy (IVM) is a powerful technique that enables imaging of internal tissues at (sub)cellular resolutions in living animals. Here, we present a silicone-based imaging window consisting of a fully flexible, sutureless design that is ideally suited for long-term, longitudinal IVM of growing tissues and tumors. Crucially, we show that this window, without any customization, is suitable for numerous anatomical locations in mice using a rapid and standardized implantation procedure. This low-cost device represents a substantial technological and performance advance that facilitates intravital imaging in diverse contexts in higher organisms, opening previously unattainable avenues for in vivo imaging of soft and fragile tissues.
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Affiliation(s)
- Guillaume Jacquemin
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France.
| | - Maria Benavente-Diaz
- Stem Cells & Development Unit, Institut Pasteur, 25 rue du Dr. Roux, 75015 Paris, France
- UMR CNRS 3738, Institut Pasteur, Paris, France
- Sorbonne Universités, Complexité du Vivant, F-75005, Paris, France
| | - Samir Djaber
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France
| | - Aurélien Bore
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France
- CRISPR'it, Platform for Genetic Screens, Institut Curie, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France
| | - Virginie Dangles-Marie
- Faculty of Pharmacy, Université Paris Descartes, Paris, France
- In vivo Experiment Platform, PSL Research University, 75005 Paris, France
| | - Didier Surdez
- INSERM U830, Équipe Labellisée LNCC, Diversity and Plasticity of Childhood Tumors Lab, PSL Research University, SIREDO Oncology Centre, Institut Curie Research Centre, Paris, France
| | - Shahragim Tajbakhsh
- Stem Cells & Development Unit, Institut Pasteur, 25 rue du Dr. Roux, 75015 Paris, France
- UMR CNRS 3738, Institut Pasteur, Paris, France
| | - Silvia Fre
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France.
| | - Bethan Lloyd-Lewis
- Institut Curie, Laboratory of Genetics and Developmental Biology, PSL Research University, INSERM U934, CNRS UMR3215, F-75248 Paris Cedex 05, France.
- School of Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, Bristol, BS8 1TD, UK
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Intravital microscopy to illuminate cell state plasticity during metastasis. Curr Opin Cell Biol 2021; 72:28-35. [PMID: 34020117 DOI: 10.1016/j.ceb.2021.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/14/2021] [Accepted: 04/16/2021] [Indexed: 01/06/2023]
Abstract
Microenvironmental cues in tumors induce in a wide variety of cellular states that subsequently lead to cancer cells with distinct cellular identity, behavior, and fate. Recent literature suggests that the ability to change cellular states, a process defined as cell state plasticity, enable cells to rapidly adapt to their changing environment during tumor progression and metastasis. In this review, we will discuss how recent high-resolution intravital microscopy studies have been instrumental to reveal the real-time dynamics of tumor cell state plasticity during the different steps of the metastatic cascade. In addition, we will highlight the role of tumor plasticity during anticancer treatment response, and how plasticity can be used as a potential druggable target.
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Intravital mesoscopic fluorescence molecular tomography allows non-invasive in vivo monitoring and quantification of breast cancer growth dynamics. Commun Biol 2021; 4:556. [PMID: 33976362 PMCID: PMC8113483 DOI: 10.1038/s42003-021-02063-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 03/31/2021] [Indexed: 02/03/2023] Open
Abstract
Preclinical breast tumor models are an invaluable tool to systematically study tumor progression and treatment response, yet methods to non-invasively monitor the involved molecular and mechanistic properties under physiologically relevant conditions are limited. Here we present an intravital mesoscopic fluorescence molecular tomography (henceforth IFT) approach that is capable of tracking fluorescently labeled tumor cells in a quantitative manner inside the mammary gland of living mice. Our mesoscopic approach is entirely non-invasive and thus permits prolonged observational periods of several months. The relatively high sensitivity and spatial resolution further enable inferring the overall number of oncogene-expressing tumor cells as well as their tumor volume over the entire cycle from early tumor growth to residual disease following the treatment phase. Our IFT approach is a promising method for studying tumor growth dynamics in a quantitative and longitudinal fashion in-vivo.
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Choo YW, Jeong J, Jung K. Recent advances in intravital microscopy for investigation of dynamic cellular behavior in vivo. BMB Rep 2021. [PMID: 32475382 PMCID: PMC7396917 DOI: 10.5483/bmbrep.2020.53.7.069] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Currently, most biological research relies on conventional experimental techniques that allow only static analyses at certain time points in vitro or ex vivo. However, if one could visualize cellular dynamics in living organisms, that would provide a unique opportunity to study key biological phenomena in vivo. Intravital microscopy (IVM) encompasses diverse optical systems for direct viewing of objects, including biological structures and individual cells in live animals. With the current development of devices and techniques, IVM addresses important questions in various fields of biological and biomedical sciences. In this mini-review, we provide a general introduction to IVM and examples of recent applications in the field of immunology, oncology, and vascular biology. We also introduce an advanced type of IVM, dubbed real-time IVM, equipped with video-rate resonant scanning. Since the real-time IVM can render cellular dynamics with high temporal resolution in vivo, it allows visualization and analysis of rapid biological processes.
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Affiliation(s)
- Yeon Woong Choo
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Juhee Jeong
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080, Korea
| | - Keehoon Jung
- Department of Biomedical Sciences, BK21 Plus Biomedical Science Project, Seoul National University College of Medicine, Seoul 03080; Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul 03080; Institute of Allergy and Clinical Immunology, Seoul National University Medical Research Center, Seoul 03080, Korea
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Huang Q, Garrett A, Bose S, Blocker S, Rios AC, Clevers H, Shen X. The frontier of live tissue imaging across space and time. Cell Stem Cell 2021; 28:603-622. [PMID: 33798422 PMCID: PMC8034393 DOI: 10.1016/j.stem.2021.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
What you see is what you get-imaging techniques have long been essential for visualization and understanding of tissue development, homeostasis, and regeneration, which are driven by stem cell self-renewal and differentiation. Advances in molecular and tissue modeling techniques in the last decade are providing new imaging modalities to explore tissue heterogeneity and plasticity. Here we describe current state-of-the-art imaging modalities for tissue research at multiple scales, with a focus on explaining key tradeoffs such as spatial resolution, penetration depth, capture time/frequency, and moieties. We explore emerging tissue modeling and molecular tools that improve resolution, specificity, and throughput.
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Affiliation(s)
- Qiang Huang
- Department of Pediatric Surgery, Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004 Shaanxi, China; Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA
| | - Aliesha Garrett
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA
| | - Shree Bose
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA
| | - Stephanie Blocker
- Center for In Vitro Microscopy, Duke University, Durham, NC 27708, USA
| | - Anne C Rios
- Princess Máxima Center for Pediatric Oncology, Utrecht 3584, the Netherlands; Department of Cancer Research, Oncode Institute, Hubrecht Institute-KNAW Utrecht, Utrecht 3584, the Netherlands
| | - Hans Clevers
- Princess Máxima Center for Pediatric Oncology, Utrecht 3584, the Netherlands; Department of Cancer Research, Oncode Institute, Hubrecht Institute-KNAW Utrecht, Utrecht 3584, the Netherlands; Hubrecht Institute, Royal Netherlands Academy of Arts and Sciences (KNAW) and University Medical Center (UMC) Utrecht, Utrecht 3584, the Netherlands
| | - Xiling Shen
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University, Durham, NC 27708, USA.
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Su S, Li X. Dive into Single, Seek Out Multiple: Probing Cancer Metastases via Single-Cell Sequencing and Imaging Techniques. Cancers (Basel) 2021; 13:1067. [PMID: 33802312 PMCID: PMC7959126 DOI: 10.3390/cancers13051067] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/25/2021] [Accepted: 02/27/2021] [Indexed: 02/08/2023] Open
Abstract
Metastasis is the cause of most cancer deaths and continues to be the biggest challenge in clinical practice and laboratory investigation. The challenge is largely due to the intrinsic heterogeneity of primary and metastatic tumor populations and the complex interactions among cancer cells and cells in the tumor microenvironment. Therefore, it is important to determine the genotype and phenotype of individual cells so that the metastasis-driving events can be precisely identified, understood, and targeted in future therapies. Single-cell sequencing techniques have allowed the direct comparison of the genomic and transcriptomic changes among different stages of metastatic samples. Single-cell imaging approaches have enabled the live visualization of the heterogeneous behaviors of malignant and non-malignant cells in the tumor microenvironment. By applying these technologies, we are achieving a spatiotemporal precision understanding of cancer metastases and clinical therapeutic translations.
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Affiliation(s)
| | - Xiaohong Li
- Department of Cancer Biology, College of Medicine and Life Sciences, The University of Toledo, Toledo, OH 43614, USA;
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47
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In Vivo Optical Metabolic Imaging of Long-Chain Fatty Acid Uptake in Orthotopic Models of Triple-Negative Breast Cancer. Cancers (Basel) 2021; 13:cancers13010148. [PMID: 33466329 PMCID: PMC7794847 DOI: 10.3390/cancers13010148] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 12/23/2020] [Accepted: 12/31/2020] [Indexed: 12/16/2022] Open
Abstract
Simple Summary A dysregulated metabolism is a hallmark of cancer. Once understood, tumor metabolic reprogramming can lead to targetable vulnerabilities, spurring the development of novel treatment strategies. Beyond the common observation that tumors rely heavily on glucose, building evidence indicates that a subset of tumors use lipids to maintain their proliferative or metastatic phenotype. This study developed an intra-vital microscopy method to quantify lipid uptake in breast cancer murine models using a fluorescently labeled palmitate molecule, Bodipy FL c16. This work highlights optical imaging’s ability to both measure metabolic endpoints non-destructively and repeatedly, as well as inform small animal metabolic phenotyping beyond in vivo optical imaging of breast cancer alone. Abstract Targeting a tumor’s metabolic dependencies is a clinically actionable therapeutic approach; however, identifying subtypes of tumors likely to respond remains difficult. The use of lipids as a nutrient source is of particular importance, especially in breast cancer. Imaging techniques offer the opportunity to quantify nutrient use in preclinical tumor models to guide development of new drugs that restrict uptake or utilization of these nutrients. We describe a fast and dynamic approach to image fatty acid uptake in vivo and demonstrate its relevance to study both tumor metabolic reprogramming directly, as well as the effectiveness of drugs targeting lipid metabolism. Specifically, we developed a quantitative optical approach to spatially and longitudinally map the kinetics of long-chain fatty acid uptake in in vivo murine models of breast cancer using a fluorescently labeled palmitate molecule, Bodipy FL c16. We chose intra-vital microscopy of mammary tumor windows to validate our approach in two orthotopic breast cancer models: a MYC-overexpressing, transgenic, triple-negative breast cancer (TNBC) model and a murine model of the 4T1 family. Following injection, Bodipy FL c16 fluorescence increased and reached its maximum after approximately 30 min, with the signal remaining stable during the 30–80 min post-injection period. We used the fluorescence at 60 min (Bodipy60), the mid-point in the plateau region, as a summary parameter to quantify Bodipy FL c16 fluorescence in subsequent experiments. Using our imaging platform, we observed a two- to four-fold decrease in fatty acid uptake in response to the downregulation of the MYC oncogene, consistent with findings from in vitro metabolic assays. In contrast, our imaging studies report an increase in fatty acid uptake with tumor aggressiveness (6NR, 4T07, and 4T1), and uptake was significantly decreased after treatment with a fatty acid transport inhibitor, perphenazine, in both normal mammary pads and in the most aggressive 4T1 tumor model. Our approach fills an important gap between in vitro assays providing rich metabolic information at static time points and imaging approaches visualizing metabolism in whole organs at a reduced resolution.
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Maruno T, Fukuda A, Goto N, Tsuda M, Ikuta K, Hiramatsu Y, Ogawa S, Nakanishi Y, Yamaga Y, Yoshioka T, Takaori K, Uemoto S, Saur D, Chiba T, Seno H. Visualization of stem cell activity in pancreatic cancer expansion by direct lineage tracing with live imaging. eLife 2021; 10:55117. [PMID: 33393460 PMCID: PMC7800378 DOI: 10.7554/elife.55117] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 11/24/2020] [Indexed: 12/12/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a devastating disease. Although rigorous efforts identified the presence of 'cancer stem cells (CSCs)' in PDAC and molecular markers for them, stem cell dynamics in vivo have not been clearly demonstrated. Here we focused on Doublecortin-like kinase 1 (Dclk1), known as a CSC marker of PDAC. Using genetic lineage tracing with a dual-recombinase system and live imaging, we showed that Dclk1+ tumor cells continuously provided progeny cells within pancreatic intraepithelial neoplasia, primary and metastatic PDAC, and PDAC-derived spheroids in vivo and in vitro. Furthermore, genes associated with CSC and epithelial mesenchymal transition were enriched in mouse Dclk1+ and human DCLK1-high PDAC cells. Thus, we provided direct functional evidence for the stem cell activity of Dclk1+ cells in vivo, revealing the essential roles of Dclk1+ cells in expansion of pancreatic neoplasia in all progressive stages.
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Affiliation(s)
- Takahisa Maruno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Akihisa Fukuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norihiro Goto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Motoyuki Tsuda
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kozo Ikuta
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yukiko Hiramatsu
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Satoshi Ogawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuki Nakanishi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuichi Yamaga
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takuto Yoshioka
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Kyoichi Takaori
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shinji Uemoto
- Division of Hepatobiliary-Pancreatic Surgery and Transplantation, Department of Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Dieter Saur
- Department of Internal Medicine II, Klinikum rechts der Isar Technische Universität München, München, Germany.,Division of Translational Cancer Research, German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Kansai Electric Power Hospital, Fukushima-ku Osaka-shi, Osaka, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Smolanka II, Bagmut IY, Sheremet MI, Lyashenko AO, Movchan OV, Smolanka II, Loboda AD, Kolisnyk IL, Sydorchuk LP, Lazaruk OV. Delayed breast reconstruction with tram-flap and various modifications after radical mastectomy. J Med Life 2021; 14:847-852. [PMID: 35126757 PMCID: PMC8811661 DOI: 10.25122/jml-2021-0354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 12/01/2021] [Indexed: 11/19/2022] Open
Abstract
This study describes the experience of radical mastectomies with simultaneous breast reconstruction using TRAM flap in patients with inflammatory breast cancer. The study aimed to evaluate the effectiveness of primary breast reconstruction using the TRAM-flap procedure in patients with an inflammatory form of breast cancer. Our work is associated with some deviation from generally accepted standards: delayed breast reconstruction after radical mastectomy for inflammatory breast cancer. We describe the experience of radical mastectomies with the simultaneous reconstruction of the breast using a TRAM flap in patients with inflammatory breast cancer. This study included 12 patients diagnosed with breast cancer stages IIIB and IIIC. Almost all patients (eleven out of twelve patients) underwent radical mastectomy with one-stage reconstruction using a TRAM flap after chemotherapy. Two years later, one patient (8.3%) showed disease progression in the form of distant metastases in the bones of the spine. One patient (8.3%) had a regional relapse in the displaced flap near the postoperative scar. The rest of the patients (83.4%) showed no signs of continuing the disease. Patients with one-stage breast reconstruction improved socially, and their subjective well-being was better than those who underwent radical mastectomy without reconstruction. Experience in performing one-stage reconstructions in the surgical treatment of patients with inflammatory breast cancer is a reason for restrained optimism regarding the possibility and feasibility of these operations.
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Affiliation(s)
| | | | - Michael Ivanovicha Sheremet
- Surgery Department No.1, Bukovinian State Medical University, Chernivtsi, Ukraine,* Corresponding Author: Michael Ivanovich Sheremet, Surgery Department No. 1 of Bukovinian State Medical University, Holovna str., 191, 58018, Chernivtsi, Ukraine. Phone: 0956064607; E-mail:
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50
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Liang Y, Walczak P. Long term intravital single cell tracking under multiphoton microscopy. J Neurosci Methods 2020; 349:109042. [PMID: 33340557 DOI: 10.1016/j.jneumeth.2020.109042] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 12/07/2020] [Accepted: 12/11/2020] [Indexed: 12/13/2022]
Abstract
Visualizing and tracking cells over time in a living organism has been a much-coveted dream before the invention of intravital microscopy. The opaque nature of tissue was a major hurdle that was remedied by the multiphoton microscopy. With the advancement of optical imaging and fluorescent labeling tools, intravital high resolution imaging has become increasingly accessible over the past few years. Long-term intravital tracking of single cells (LIST) under multiphoton microscopy provides a unique opportunity to gain insight into the longitudinal changes in the morphology, migration, or function of cells or subcellular structures. It is particularly suitable for studying slow-evolving cellular and molecular events during normal development or disease progression, without losing the opportunity of catching fast events such as calcium signals. Here, we review the application of LIST under 2-photon microscopy in various fields of neurobiology and discuss challenges and new directions in labeling and imaging methods for LIST. Overall, this review provides an overview of current applications of LIST in mammals, which is an emerging field that will contribute to a better understanding of essential molecular and cellular events in health and disease.
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Affiliation(s)
- Yajie Liang
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA.
| | - Piotr Walczak
- Department of Diagnostic Radiology and Nuclear Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
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