Abstract
While histological sections are the go-to method to analyze spatial information in tissues, three-dimensional information is fundamental to understand biological processes. Yet, the opaqueness of fixed samples prevents the visualization of large volumes of tissue. Tissue clearing allows to match the refractive indices of biological specimens with the mounting media, allowing light penetration and imaging of millimetric depths within tissues. We provide a detailed method to process whole brains for volumetric imaging in the African killifish Nothobranchius furzeri. We anticipate this method will facilitate the study of aging and regeneration of adult vertebrate organs.
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Acknowledgments
We thank Jeffrey Lange, Alice Accorsi, Dai Tsuchiya, Nancy Thomas, Seth Malloy, and Michael Frangello for meaningful discussion throughout this project. We also thank the Media Preparation Facility of the Stowers Institute for Medical Research for solutions preparation. We thank Robert Schnittker and Daniel Zamora for exceptional care of the killifish colony in the Sánchez Alvarado Lab. We thank Nicolas Denans for sharing the plasmid to generate the Scarlet transgenic killifish. This study is financially supported by the Stowers Institute for Medical Research.
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Ortega Granillo, A., Deng, F., Wilson, H., Wang, Y., Sánchez Alvarado, A. (2023). Whole-Brain Clearing and Immunolabelling in the African Killifish Nothobranchius furzeri. In: Wang, W., Rohner, N., Wang, Y. (eds) Emerging Model Organisms. Neuromethods, vol 194. Humana, New York, NY. https://doi.org/10.1007/978-1-0716-2875-1_4
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DOI: https://doi.org/10.1007/978-1-0716-2875-1_4
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