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 JoVE Neuroscience

Three-dimensional Confocal Analysis of Microglia/macrophage Markers of Polarization in Experimental Brain Injury

1Department of Neuroscience, IRCCS - Istituto di Ricerche Farmacologiche Mario Negri


JoVE 50605

A way to gain new insights into the complexity of the brain inflammatory response is presented. We describe immunofluorescence-based protocols followed by three-dimensional confocal analysis to investigate the pattern of co-expression of microglia/macrophage phenotype markers in a mouse model of focal ischemia.

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 JoVE Biology

Mouse Fetal Whole Intestine Culture System for Ex Vivo Manipulation of Signaling Pathways and Three-dimensional Live Imaging of Villus Development

1Cell and Developmental Biology, University of Michigan, 2Department of Biosciences and Nutrition, Karolinska Instituet Novum


JoVE 51817

Improved imaging technology is allowing three-dimensional imaging of organs during development. Here we describe a whole organ culture system that allows live imaging of the developing villi in the fetal mouse intestine.

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 JoVE Bioengineering

Analysis of Cell Migration within a Three-dimensional Collagen Matrix

1Institute of Immunology & Experimental Oncology, Center for Biomedical Education and Research (ZBAF), Witten/Herdecke University


JoVE 51963

Cell migration is a biological phenomenon that is involved in a plethora of physiological, such as wound healing and immune responses, and pathophysiological processes, like cancer. The 3D-collagen matrix migration assay is a versatile tool to analyze the migratory properties of different cell types within in a 3D physiological-like environment.

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 JoVE Bioengineering

Investigating the Three-dimensional Flow Separation Induced by a Model Vocal Fold Polyp

1Department of Mechanical and Aerospace Engineering, The George Washington University, 2Department of Mechanical and Aeronautical Engineering, Clarkson University


JoVE 51080

Vocal fold polyps can disrupt vocal fold dynamics and thus can have devastating consequences on a patient's ability to communicate. Three-dimensional flow separation induced by a wall-mounted model polyp and its impact on the wall pressure loading are examined using particle image velocimetry, skin friction line visualization, and wall pressure measurements.

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 JoVE Neuroscience

Consensus Brain-derived Protein, Extraction Protocol for the Study of Human and Murine Brain Proteome Using Both 2D-DIGE and Mini 2DE Immunoblotting

1Team Alzheimer & Tauopathies, Jean-Pierre Aubert Research Centre, Inserm UMR 837, 2EA 4308-Department of Reproductive Biology-Spermiology-CECOS, CHRU-Lille, 3EA2686-Laboratorie d'Immunologie, Faculté de Médecine - Pôle Recherche, 4Department of Neurology, CHRU-Lille


JoVE 51339

A common protein extraction protocol using urea/thiourea/SDS buffer for human and mice brain tissue allows indentification of proteins by 2D-DIGE and their subsequent characterization by mini 2DE immunoblotting. This method enables one to obtain more reproducible and reliable results from human biopsies and experimental models.

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 JoVE Biology

Simultaneous Multicolor Imaging of Biological Structures with Fluorescence Photoactivation Localization Microscopy

1Department of Physics and Astronomy, University of Maine


JoVE 50680

We demonstrate the use of fluorescence photo activation localization microscopy (FPALM) to simultaneously image multiple types of fluorescently labeled molecules within cells. The techniques described yield the localization of thousands to hundreds of thousands of individual fluorescent labeled proteins, with a precision of tens of nanometers within single cells.

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 JoVE Biology

Preparation of DNA-crosslinked Polyacrylamide Hydrogels

1New Jersey Neuroscience Institute, JFK Medical Center, 2Department of Biomedical Engineering, Rutgers University, 3Department of Mechanical and Aerospace Engineering, Rutgers University


JoVE 51323

Our laboratory has developed DNA-crosslinked polyacrylamide hydrogels, a dynamic hydrogel system, to better understand the effects of modulating tissue stiffness on cell function. Here, we provide schematics, descriptions, and protocols to prepare these hydrogels.

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 JoVE Clinical and Translational Medicine

Three Dimensional Cultures: A Tool To Study Normal Acinar Architecture vs. Malignant Transformation Of Breast Cells

1Department of Internal Medicine, University of Michigan Comprehensive Cancer Center, 2Department of Pathology, University of Michigan Comprehensive Cancer Center


JoVE 51311

Three dimensional culture of mammary epithelial cells on a reconstituted basement membrane is a useful method to recapitulate the in vivo architecture of the benign breast, and to differentiate the malignant phenotype from the benign breast phenotype. Importantly, this system can be applied to study invasive carcinomas in other tissues.

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 JoVE Biology

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects

1The Rowland Institute, Harvard University, 2Faculdade de Ciências e Letras de Assis, Universidade Estadual Paulista


JoVE 50488

The three-dimensional locations of weakly-scattering objects can be uniquely identified using digital inline holographic microscopy (DIHM), which involves a minor modification to a standard microscope. Our software uses a simple imaging heuristic coupled with Rayleigh-Sommerfeld back-propagation to yield the three-dimensional position and geometry of a microscopic phase object.

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 JoVE Application Notes

3D Tissue Engineered Systems for Regenerative Approaches, Drug Discovery, and Toxicity Screening - ADVERTISEMENT


JoVE 5517

In vitro mammalian cell culture has served as an invaluable tool in cell biology for several decades. Classically, monolayer cultures of adherent cells were grown on flat and rigid two-dimensional (2D) substrates, such as polystyrene or glass. However, many cells, when isolated from tissues and placed onto stiff planar 2D cell culture surfaces, such as tissue culture plastic, become progressively flatter, divide aberrantly, and lose their differentiated phenotype1,2. While these two-dimensional cell culture studies have played a pivotal role in furthering our understanding of many biological processes, they do not emulate in vivo conditions.

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