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Morgridge Institute for Research, Madison, Wisconsin

3 ARTICLES PUBLISHED IN JoVE

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Bioengineering

Preparation of 3D Collagen Gels and Microchannels for the Study of 3D Interactions In Vivo
Brian Burkel 1,2, Brett A. Morris 1, Suzanne M. Ponik 1, Kristin M. Riching 1, Kevin W. Eliceiri 2,3,4, Patricia J. Keely 1,2,5
1Department of Cell and Regenerative Biology, University of Wisconsin-Madison, 2Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison, 3Department of Biomedical Engineering, University of Wisconsin-Madison, 4Morgridge Institute for Research, University of Wisconsin-Madison, 5Paul P. Carbone Comprehensive Cancer center, University of Wisconsin-Madison

Collagen is a core component of the ECM, and provides essential cues for several cellular processes ranging from migration to differentiation and proliferation. Provided here is a protocol for embedding cells within 3D collagen hydrogels, and a more advanced technique for generating randomized or aligned collagen matrices using PDMS microchannels.

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Bioengineering

Long-term Live Imaging Device for Improved Experimental Manipulation of Zebrafish Larvae
Kayla Huemer *1,2, Jayne M. Squirrell *3, Robert Swader 2, Kirsten Pelkey 2, Danny C. LeBert 4, Anna Huttenlocher 5,6, Kevin W. Eliceiri 1,2,3
1Department of Biomedical Engineering, University of Wisconsin-Madison, 2Morgridge Institute for Research, University of Wisconsin-Madison, 3Laboratory for Optical and Computational Instrumentation, University of Wisconsin-Madison, 4Cellular and Molecular Pathology Graduate Program, University of Wisconsin-Madison, 5Department of Medical Microbiology and Immunology, University of Wisconsin-Madison, 6Department of Pediatrics, University of Wisconsin-Madison

This manuscript describes the zWEDGI (zebrafish Wounding and Entrapment Device for Growth and Imaging), which is a compartmentalized device designed to orient and restrain zebrafish larvae. The design permits tail transection and long-term collection of high-resolution fluorescent microscopy images of wound healing and regeneration.

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Bioengineering

Quantifying Fibrillar Collagen Organization with Curvelet Transform-Based Tools
Yuming Liu 1, Kevin W. Eliceiri 1,2,3
1Laboratory for Optical and Computational Instrumentation, Center for Quantitative Cell Imaging, University of Wisconsin-Madison, 2Departments of Medical Physics and Biomedical Engineering, University of Wisconsin-Madison, 3Morgridge Institute for Research, Madison, Wisconsin, 4test, test

Here, we present a protocol to use a curvelet transform-based, open-source MATLAB software tool for quantifying fibrillar collagen organization in the extracellular matrix of both normal and diseased tissues. This tool can be applied to images with collagen fibers or other types of line-like structures.

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