In JoVE (1)
Other Publications (1)
Articles by Robert Swader in JoVE
Long-term Live Imaging Device for Improved Experimental Manipulation of Zebrafish Larvae Kayla Huemer*1,2, Jayne M. Squirrell*3, Robert Swader2, Kirsten Pelkey2, Danny C. LeBert4, Anna Huttenlocher5,6, Kevin W. Eliceiri1,2,3 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.
Other articles by Robert Swader on PubMed
ZWEDGI: Wounding and Entrapment Device for Imaging Live Zebrafish Larvae Zebrafish. Feb, 2017 | Pubmed ID: 27676647 Zebrafish, an established model organism in developmental biology, is also a valuable tool for imaging wound healing in space and time with cellular resolution. However, long-term imaging of wound healing poses technical challenges as wound healing occurs over multiple temporal scales. The traditional strategy of larval encapsulation in agarose successfully limits sample movement but impedes larval development and tissue regrowth and is therefore not amenable to long-term imaging of wound healing. To overcome this challenge, we engineered a functionally compartmentalized device, the zebrafish Wounding and Entrapment Device for Growth and Imaging (zWEDGI), to orient larvae for high-resolution microscopy, including confocal and second harmonic generation (SHG), while allowing unrestrained tail development and regrowth. In this device, larval viability was maintained and tail regrowth was improved over embedding in agarose. The quality of tail fiber SHG images collected from larvae in the device was similar to fixed samples but provided the benefit of time lapse data collection. Furthermore, we show that this device was amenable to long-term (>24 h) confocal microscopy of the caudal fin. Finally, the zWEDGI was designed and fabricated using readily available techniques so that it can be easily modified for diverse experimental imaging protocols.