JoVE Neuroscience
In vivo Imaging of the Mouse Spinal Cord Using Two-photon Microscopy
1Gladstone Institute of Neurological Disease, University of California, San Francisco, 2Department of Neurology, University of California, San Francisco
A minimally invasive protocol to stabilize the mouse spinal column and perform repetitive in vivo spinal cord imaging using two-photon microscopy is described. This method combines a spinal stabilization device and an anesthetic regimen to minimize respiratory-induced movements and produce raw imaging data that require no alignment or other post-processing.
JoVE General
A Craniotomy Surgery Procedure for Chronic Brain Imaging
Department of Neurology, University of California, Los Angeles
This video and protocol demonstrate how to implant a glass-covered cranial window in rodents. These preparations can be used for chronic in vivo two-photon imaging of the neocortex over time scales of months. It may also be used for other types of imaging, including optical intrinsic signal imaging.
JoVE General
Mesoscopic Fluorescence Tomography for In-vivo Imaging of Developing Drosophila
1Center for Systems Biology, Massachusetts General Hospital, 2Institute for Biological and Medical Imaging (IBMI), Technical University of Munich and Helmholtz Center Munich, 3Department of Genetics, Harvard Medical School and Howard Hughes Medical Institute
Mesoscopic fluorescence tomography operates beyond the penetration limits of tissue-sectioning fluorescence microscopy. The technique is based on multi-projection illumination and a photon transport description. We demonstrate in-vivo whole-body 3D visualization of the morphogenesis of GFP-expressing wing imaginal discs in Drosophila melanogaster.
JoVE Immunology and Infection
Competitive Homing Assays to Study Gut-tropic T Cell Migration
Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School
Competitive homing experiments allow to directly assessing the migratory properties of two different cell populations in a single mouse. Here we illustrate this procedure by comparing the migration of ex vivo-generated gut-tropic versus non-gut tropic T cells.
JoVE General
In vivo Bioluminescent Imaging of Mammary Tumors Using IVIS Spectrum
Biology Research and Development , Caliper Life Sciences
Mammary tumor cells expressing luciferase are implanted subcutaneously in mice and visualized using optical imaging to monitor tumor growth and development non-invasively in a longitudinal study.
JoVE General
Single Cell Electroporation in vivo within the Intact Developing Brain
1Brain Research Centre, University of British Columbia - UBC, 2Department of Cellular and Physiological Sciences, University of British Columbia - UBC
Single-cell electroporation (SCE) is a specialized technique allowing delivery of DNA or other macromolecules into individual cells within intact tissue, including in vivo preparations. Here we detail the procedure for SCE of a fluorescent dye or plasmid DNA into neurons within the intact brain of the Xenopus laevis tadpole.
JoVE General
Noninvasive In Vivo Small Animal MRI and MRS: Basic Experimental Procedures
1Department of Radiology, University of Washington, 2Department of Bioengineering, University of Washington
This work describes basic procedures of noninvasive small animal MRI and MRS in vivo.
JoVE Bioengineering
Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells (hESCs) and and Induced Pluripotent Stem Cells (iPSCs)
1Department of Medicine (Hematology, Oncology, and Transplant), University of Minnesota, Minneapolis, 2Stem Cell Institute, University of Minnesota, Minneapolis
This protocol describes the development, expansion, and in vivo imaging of NK cells derived from hESCs and iPSCs.
JoVE General
In vivo Imaging and Therapeutic Treatments in an Orthotopic Mouse Model of Ovarian Cancer
1Department of Medical Oncology, Women's Cancer Program, 2Transgenic Mouse Facility, Fox Chase Cancer Center
Orthotopic animal models of ovarian cancer replicate better human disease and therefore enhance our understanding of cancer progression and tumor response to therapy. A mouse model receives an intrabursal injection of luciferase-expressing ovarian tumor cells. Treatment is administered via oral gavage. Tumor growth is monitored by in vivo imaging system.
JoVE Clinical and Translational Medicine
Evaluation of Nanoparticle Uptake in Tumors in Real Time Using Intravital Imaging
1Department of Medical Biophysics, University of Western Ontario, 2London Regional Cancer Program, London Health Science Centre, 3Department of Pathology, Vanderbilt University, 4Translational Prostate Cancer Research Group, London Health Science Centre
We present a novel approach to quantify nanoparticle localization in the vasculature of human xenografted tumors using dynamic, real-time intravital imaging in an avian embryo model.
JoVE General
In situ Imaging of the Mouse Thymus Using 2-Photon Microscopy
Department of Molecular and Cell Biology, University of California, Berkeley
We present step-by-step instructions for the generation of neonatal chimeras as well as the dissection and preparation of the thymus for ex vivo imaging by 2-Photon Microscopy.
JoVE General
In vitro and in vivo Bioluminescence Reporter Gene Imaging of Human Embryonic Stem Cells
Departments of Radiology and Medicine (Cardiology), Stanford University School of Medicine
With the growing interest in stem cell therapies, molecular imaging techniques are ideal for monitoring stem cell behavior after transplantation. Luciferase reporter genes have enabled non-invasive, repetitive assessment of cell survival, location, and proliferation in vivo. This video will demonstrate how to track hESC proliferation in a living mouse.
JoVE Neuroscience
Systemic and Local Drug Delivery for Treating Diseases of the Central Nervous System in Rodent Models
Department of Neurological Surgery, University of California, San Francisco - UCSF
Thorough preclinical testing of drugs that act in the central nervous system often involves assessing and comparing drug biodistribution in association with specific routes of administration. Here, three commonly used methods of systemic delivery (intravenous, intraperitoneal, and oral) as well as a method for local delivery (convection-enhanced delivery) are demonstrated in mice.
JoVE General
In vivo Ca2+- Imaging of Mushroom Body Neurons During Olfactory Learning in the Honey Bee
1Institut für Biologie - Neurobiologie, Freie Universität Berlin, 2Institut für Biologie - Neurobiologie, Free University Berlin - Freie Universitaet Berlin
Bees can be conditioned in an appetitive olfactory learning paradigm (PER-conditioning). Using odors as stimuli, we established a method in which behavior is recorded while simultaneously Calcium Imaging is used to measure odor evoked activity in mushroom body neurons in vivo.
JoVE Editorial
September 2011: This Month in JoVE
Here are some highlights from the September 2011 Issue of Journal of Visualized Experiments (JoVE).
JoVE Immunology and Infection
Using Luciferase to Image Bacterial Infections in Mice
Microbial & Molecular Pathogenesis, Texas A&M Health Science Center
Methods for bioluminescence imaging of bacterial infections in living animals are decribed. Pathogens are modified to express luciferase allowing optical whole body imaging of infections in live animals. Animal models can be infected with luciferase expressing pathogens and the resulting course of disease visualized in real-time by bioluminescence imaging.
JoVE General
In vivo Imaging of Deep Cortical Layers using a Microprism
Department of Biomedical Engineering, Yale University
Right-angle microprisms inserted into the mouse neocortex allows for deep imaging of multiple cortical layers with a viewpoint typically found in slice. One-millimeter microprisms offer a wide field-of-view (~900 μm) and spatial resolutions sufficient to resolve dendritic spines. We demonstrate layer V neuronal imaging and neocortical vascular imaging using microprisms.
JoVE Clinical and Translational Medicine
Multi-photon Imaging of Tumor Cell Invasion in an Orthotopic Mouse Model of Oral Squamous Cell Carcinoma
1Department of Neurobiology and Anatomy, Program in Cancer Cell Biology, Mary Babb Randolph Cancer Center, West Virginia University, 2Sensory Neuroscience Research Center, West Virginia University, 3Departments of Otolaryngology and Physiology, Center for Neuroscience, West Virginia University
A comprehensive overview of the techniques involved in generating a mouse model of oral cancer and quantitative monitoring of tumor invasion within the tongue through multi-photon microscopy of labeled cells is presented. This system can serve as a useful platform for the molecular assessment and drug efficacy of anti-invasive compounds.
JoVE Application Notes
使用IVIS光谱仪对乳腺癌细胞进行在体生物光学成像 - ADVERTISEMENT
Biology Research and Development , Caliper Life Sciences
JoVE Immunology and Infection
In vivo Imaging of Transgenic Leishmania Parasites in a Live Host
1Interdisciplinary Immunology Program, University of Iowa, and the VA Medical Center, 2Department of Biochemistry, University of Iowa, and the VA Medical Center, 3Department of Internal Medicine, University of Iowa, 4Department of Molecular Microbiology, Washington University School of Medicine, 5Division of Dermatology, Harbor-UCLA Medical Center, Hanley-Hardison Research Center, 6Interdisciplinary Immunology Program, Iowa City VA Medical Center, 7Departments of Internal Medicine, Microbiology and Epidemiology, University of Iowa
An in vivo imaging system is used to generate quantitative measurements of murine infection with the Trypanosomatid protozoan Leishmania. This is a non-invasive and non-lethal method for detecting parasites expressing luciferase within many tissues throughout the course of chronic Leishmania spp. infection.
JoVE General
In vivo Imaging of Intact Drosophila Larvae at Sub-cellular Resolution
1Junior Research Group Synaptic Plasticity, Hertie Institute for Clinical Brain Research, University of Tübingen, 2Graduate School of Cellular and Molecular Neuroscience, University of Tübingen
This protocol describes a reliable method for anesthetization and imaging of intact Drosophila melanogaster larvae. We have utilized the volatile anesthetic desflurane to allow for repetitive imaging at sub-cellular resolution and re-identification of structures for up to a few days1.
JoVE Clinical and Translational Medicine
Intracranial Implantation with Subsequent 3D In Vivo Bioluminescent Imaging of Murine Gliomas
1Neuro-Oncology Research, Barrow Neurological Institute of St. Joseph’s Hospital and Medical Center, 2Neurosurgery Research Laboratory, Barrow Neurological Institute of St. Joseph’s Hospital and Medical Center
Intracranial implantation of GL261 cells into C57BL/6 mice produces malignant gliomas that recapitulate many of the hallmarks of human glioblastoma multiforme. We used GL261 cells stably expressing luciferase to allow us to use in vivo imaging to follow tumor progression. The surgery and 3D in vivo imaging are demonstrated.
JoVE Immunology and Infection
Intravital Imaging of the Mouse Popliteal Lymph Node
1Department of Pediatrics, Case Western Reserve University, 2Department of Pediatrics, Pathology and Biomedical Engineering, Case Western Reserve University
Recent advances in 2-photon microscopy have enabled real-time in situ imaging of live tissues in animal models, thereby enhancing our ability to investigate cellular behavior in both physiologic and pathologic conditions. Here, we outline the preparations required to perform intravital imaging of the mouse popliteal lymph node.
JoVE Clinical and Translational Medicine
In vivo Near Infrared Fluorescence (NIRF) Intravascular Molecular Imaging of Inflammatory Plaque, a Multimodal Approach to Imaging of Atherosclerosis
1Cardiovascular Research Center and Cardiology Division, Massachusetts General Hospital, Harvard Medical School, 2Institute for Biological and Medical Imaging, Helmholtz Zentrum München und Technische Universität München, 3Department of Electrical and Computer Engineering, Northeastern University
We detail a new near-infrared fluorescence (NIRF) catheter for 2-dimensional intravascular molecular imaging of plaque biology in vivo. The NIRF catheter can visualize key biological processes such as inflammation by reporting on the presence of plaque-avid activatable and targeted NIR fluorochromes. The catheter utilizes clinical engineering and power requirements and is targeted for application in human coronary arteries. The following research study describes a multimodal imaging strategy that utilizes a novel in vivo intravascular NIRF catheter to image and quantify inflammatory plaque in proteolytically active inflamed rabbit atheromata.
JoVE Neuroscience
A Thin-skull Window Technique for Chronic Two-photon In vivo Imaging of Murine Microglia in Models of Neuroinflammation
1Center for Neural Development and Disease, Department of Neurology, Child Neurology Division, University of Rochester, 2Department of Neurobiology and Anatomy, University of Rochester
We describe a method for repeatedly visualizing murine microglia and circulating monocytes in vivo over hours, days or weeks using transcranial two-photon microscopy. We demonstrate how to prepare a thinned-skull window that allows intermittent observation of quiescent microglia that can be activated by adjacent stereotactic injection of the HIV-1 regulatory protein Tat.
JoVE Immunology and Infection
An Orthotopic Model of Serous Ovarian Cancer in Immunocompetent Mice for in vivo Tumor Imaging and Monitoring of Tumor Immune Responses
1Penn Ovarian Cancer Research Center, Center for Research on Reproduction and Womans Health, Department of Obstetrics and Gynecology, University of Pennsylvania-School of Medicine, 2Women's Cancer Program, Fox Chase Cancer Center
To study in vivo tumor growth and tumor microenvironment, we used a syngeneic and orthotopic mouse model of ovarian cancer in immunocompetent animals. We transduced a mouse tumor cell line (MOV1) with Katushka fluorescent protein (MOV1KAT) and here we show its orthotopic implantation in ovary and in vivo imaging.
JoVE Clinical and Translational Medicine
Monitoring Tumor Metastases and Osteolytic Lesions with Bioluminescence and Micro CT Imaging
Imaging Biology Research and Development, Caliper Life Sciences
An experimental mouse model of bone metastasis was established following intracardiac delivery of luciferase expressing mammary tumor cells. Tumor development and resulted osteolytic lesion were monitored longitudinally with bioluminescence and micro CT imaging.
JoVE Neuroscience
Live Imaging of Dorsal Root Axons after Rhizotomy
1Temple University, Shriners Hospitals Pediatric Research Center and Department of Anatomy and Cell Biology, 2Medical Research Service, Department of Veterans Affairs Hospital, 3Department of Neurobiology and Anatomy, Drexel University College of Medicine, 4Shriners Hospitals Pediatric Research Center and Department of Anatomy and Cell Biology, Temple University School of Medicine
An in vivo imaging protocol to monitor primary sensory axons following dorsal root crush is described. The procedures utilize wide-field fluorescence microscopy and thy1-YFP transgenic mice, and permit repeated imaging of axon regeneration over 4 cm in the PNS and axon interactions with the interface of the CNS.
JoVE Bioengineering
Patient-specific Modeling of the Heart: Estimation of Ventricular Fiber Orientations
A methodology to estimate ventricular fiber orientations from in vivo images of patient heart geometries for personalized modeling is described. Validation of the methodology performed using normal and failing canine hearts demonstrate that that there are no significant differences between estimated and acquired fiber orientations at a clinically observable level.
JoVE Clinical and Translational Medicine
In vivo Bioluminescence Imaging of Tumor Hypoxia Dynamics of Breast Cancer Brain Metastasis in a Mouse Model
1Department of Radiation Oncology, University of Texas Southwestern Medical Center, 2Department of Radiology, University of Texas Southwestern Medical Center, 3Department of Radiation Oncology, Kyoto University Graduate School of Medicine
Bioluminescence imaging of hypoxia inducible factor-1α activity is applied to monitor intracranial tumor hypoxia development in a breast cancer brain metastasis mouse model.
JoVE Immunology and Infection
Protocols for Vaginal Inoculation and Sample Collection in the Experimental Mouse Model of Candida vaginitis
Louisiana State University Health Sciences Center
Key techniques to be used in the evaluation of Candida vaginitis in an experimental animal model are described. The methods will allow rapid collection of vaginal specimens and lymphocytes from draining lumbar lymph nodes. These techniques could give rise to mouse models of other diseases in the female lower genital tract.
JoVE Clinical and Translational Medicine
Ex Vivo Infection of Live Tissue with Oncolytic Viruses
Center for Innovative Cancer Research, Ottawa Hospital Research Institute (OHRI)
Oncolytic viruses are promising for cancer therapeutics. The ability to ascertain the infectability of live tissue specimens obtained from patients prior to treatment is a unique advantage of this therapeutic approach. This protocol describes how to process tissues for ex vivo infection with oncolytic virus and subsequent viral quantification.
JoVE Bioengineering
Optical Frequency Domain Imaging of Ex vivo Pulmonary Resection Specimens: Obtaining One to One Image to Histopathology Correlation
1Department of Pathology, Harvard Medical School, 2Massachusetts General Hospital, 3Wellman Center for Photomedicine, Harvard Medical School, 4Pulmonary and Critical Care Unit, Massachusetts General Hospital, 5Pulmonary and Critical Care Unit, Harvard Medical School
A method to image ex vivo pulmonary resection specimens with optical frequency domain imaging (OFDI) and obtain precise correlation to histology is described, which is essential to developing specific OFDI interpretation criteria for pulmonary pathology. This method is applicable to other tissue types and imaging techniques to obtain precise imaging to histology correlation for accurate image interpretation and assessment. Imaging criteria established with this technique would then be applicable to image assessment in future in vivo studies.
JoVE Neuroscience
Thinned-skull Cortical Window Technique for In Vivo Optical Coherence Tomography Imaging
1Division of Biomedical Sciences, University of California, Riverside, 2Department of Bioengineering, University of California, Riverside
We present a method of creating a thinned-skull cortical window (TSCW) in a mouse model for in vivo OCT imaging of the cerebral cortex.
JoVE Clinical and Translational Medicine
Transplantation into the Anterior Chamber of the Eye for Longitudinal, Non-invasive In vivo Imaging with Single-cell Resolution in Real-time
1Diabetes Research Institute, University of Miami Miller School of Medicine, 2Department of Surgery, University of Miami Miller School of Medicine, 3Department of Medicine, University of Miami Miller School of Medicine, 4Department of Physiology & Biophysics, University of Miami Miller School of Medicine, 5The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institutet
A new approach combining intraocular transplantation and confocal microscopy enables longitudinal, non-invasive real-time imaging with single-cell resolution within grafted tissues in vivo. We demonstrate how to transplant pancreatic islets into the anterior chamber of the mouse eye.
JoVE Neuroscience
Chronic Imaging of Mouse Visual Cortex Using a Thinned-skull Preparation
Neurobiology and Anatomy, University of Rochester
In this video and supplemental material, we show a protocol for chronic in vivo imaging of the intact brain using a thinned-skull preparation.
JoVE Neuroscience
A Polished and Reinforced Thinned-skull Window for Long-term Imaging of the Mouse Brain
1Department of Physics, University of California, San Diego, 2Department of Engineering Science and Mechanics, Pennsylvania State University, 3Department of Neurosurgery, Pennsylvania State University, 4Section of Neurobiology, University of California, San Diego
We present a method to form an imaging window in the mouse skull that spans millimeters and is stable for months without inflammation of the brain. This method is well suited for longitudinal studies of blood flow, cellular dynamics, and cell/vascular structure using two-photon microscopy.
JoVE Clinical and Translational Medicine
Multispectral Real-time Fluorescence Imaging for Intraoperative Detection of the Sentinel Lymph Node in Gynecologic Oncology
1Department of Surgery, Division of Surgical Oncology, University Medical Center Groningen, 2Helmholtz Zentrum, Technical University Munich, 3Department of Obstetrics and Gynaecology, University Medical Center Groningen
Fluorescence imaging is a promising innovative modality for image-guided surgery in surgical oncology. In this video we describe the technical procedure for detection of the sentinel lymph node using fluorescence imaging as showcased in gynecologic oncologicy. A multispectral fluorescence camera system, together with the fluorescent agent indocyanine green, is applied.
JoVE Neuroscience
Multimodal Imaging of Stem Cell Implantation in the Central Nervous System of Mice
1Laboratory of Experimental Hematology, University of Antwerp, 2Bio Imaging Lab, University of Antwerp
This article describes an optimized sequence of events for multimodal imaging of cellular grafts in rodent brain using: (i) in vivo bioluminescence and magnetic resonance imaging, and (ii) post mortem histological analysis. Combining these imaging modalities on a single animal allows cellular graft evaluation with high resolution, sensitivity and specificity.
JoVE Immunology and Infection
Monitoring Dendritic Cell Migration using 19F / 1H Magnetic Resonance Imaging
1Experimental and Clinical Research Center, A joint cooperation between the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, 2Berlin Ultrahigh Field Facility (B.U.F.F.), Max Delbrück Center for Molecular Medicine
Tracking of cells using MRI has gained remarkable attention in the past years. This protocol describes the labeling of dendritic cells with fluorine (19F)-rich particles, the in vivo application of these cells, and monitoring the extent of their migration to the draining lymph node with 19F/1H MRI and 19F MRS.
JoVE Neuroscience
Ex vivo Culturing of Whole, Developing Drosophila Brains
1National Institute of Neurological Disorders and Stroke, 2National Human Genome Research Institute, National Institutes of Health, Bethesda, MD
This article describes a method by which one can mimic in vivo development of the Drosophila mushroom body in an ex vivo culture system.
JoVE Bioengineering
High-resolution Fiber-optic Microendoscopy for in situ Cellular Imaging
1Department of Bioengineering, Rice University, 2Department of Molecular and Cellular Oncology, The Univeristy of Texas M. D. Anderson Cancer Center
In many biological and clinical situations it is advantageous to study cellular processes as they evolve in their native microenvironment. Here we describe the assembly and use of a low-cost fiber-optic microscope which can provide real time imaging in cell culture, animal studies, and clinical patient studies.
JoVE Immunology and Infection
Bioluminescent Bacterial Imaging In Vivo
Cork Cancer Research Centre, BioSciences Institute, University College Cork
This article describes the administration of lux-tagged bacteria to mice and subsequent in vivo analysis using IVIS bioluminescence imaging.
JoVE Neuroscience
Ex vivo Live Imaging of Single Cell Divisions in Mouse Neuroepithelium
1Department of Human Genetics, Emory University School of Medicine, 2Department of Experimental Embryology, IGAB Polish Academy of Sciences
Here we develop the tools necessary for ex vivo live imaging to trace single cell divisions in the mouse E8.5 neuroepithelium
JoVE Clinical and Translational Medicine
Live Imaging of Drug Responses in the Tumor Microenvironment in Mouse Models of Breast Cancer
1Watson School of Biological Sciences, 2Cold Spring Harbor Laboratory, 3Departments of Medical Genetics, University of Oslo and Oslo University Hospital
We describe a method for imaging response to anti-cancer treatment in vivo and at single cell resolution.
JoVE General
3D Printing of Preclinical X-ray Computed Tomographic Data Sets
1Department of Chemistry and Biochemistry, University of Notre Dame, 2Freimann Life Science Center, University of Notre Dame, 3Department of Biological Sciences, University of Notre Dame, 4Notre Dame Integrated Imaging Facility, University of Notre Dame, 5MakerBot Industries LLC, 6Departments of Biological Sciences, Aerospace and Mechanical Engineering, and Anthropology, University of Notre Dame, 7Harper Cancer Research Institute, University of Notre Dame
Using modern plastic extrusion and printing technologies, it is now possible to quickly and inexpensively produce physical models of X-ray CT data taken in a laboratory. The three -dimensional printing of tomographic data is a powerful visualization, research, and educational tool that may now be accessed by the preclinical imaging community.
JoVE Bioengineering
Three-dimensional Optical-resolution Photoacoustic Microscopy
Optical Imaging Laboratory, Department of Biomedical Engineering, Washington University in St. Louis
Optical-resolution photoacoustic microscopy (OR-PAM) is an emerging technology capable of imaging optical absorption contrasts in vivo with cellular resolution and sensitivity. Here, we provide a visualized instruction on the experimental protocols of OR-PAM, including system configuration, system alignment, typical in vivo experimental procedures, and functional imaging schemes.
JoVE Clinical and Translational Medicine
Models of Bone Metastasis
1Department of Pharmacology, Vanderbilt University, 2Vanderbilt Center for Bone Biology, Vanderbilt University, 3Department of Veterans Affairs, Tennessee Valley Healthcare System (VISN 9), 4Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University, 5Department of Cancer Biology, Vanderbilt University
Animal models are frequently utilized to study cancer metastasis to bone. In this protocol we will describe two common methods of tumor inoculation for bone metastasis studies and briefly describe some of the analyses utilized to monitor and quantify these models.
JoVE General
Genetic Modification and Recombination of Salivary Gland Organ Cultures
Department of Biological Sciences, University at Albany, SUNY
A technique to genetically manipulate epithelial cells within whole ex vivo cultured embryonic mouse submandibular glands (SMGs) using viral gene transfer is described. This method takes advantage of the innate ability of SMG epithelium and mesenchyme to spontaneously recombine after separation and infection of epithelial rudiments with adenoviral vectors.
JoVE General
Tracking Dynamics of Muscle Engraftment in Small Animals by In Vivo Fluorescent Imaging
1Department of Anesthesia, Brigham and Woman's Hospital, 2Department of Radiology, Brigham and Woman's Hospital
We describe an in vivo fluorescence imaging protocol to monitor muscle regeneration by GFP-labeled myoblasts after transplantation into skeletal muscles of both healthy and dystrophic mice. This protocol can be adapted to study muscle regeneration by transplantation of other types of cells and in other muscular conditions as well.
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