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Journal of Biomedical Optics • Open Access

Three-dimensional optical method for integrated visualization of mouse islet microstructure and vascular network with subcellular-level resolution
Author(s): Ya-Yuan Fu; Chih-Hsuan Lu; Chi-Wen Lin; Jyuhn-Huarng Juang; Grigori Enikolopov; Eric Sibley; Ann-Shyn Chiang; Shiue-Cheng Tang

Paper Abstract

Microscopic visualization of islets of Langerhans under normal and diabetic conditions is essential for understanding the pathophysiology of the disease. The intrinsic opacity of pancreata, however, limits optical accessibility for high-resolution light microscopy of islets in situ. Because the standard microtome-based, 2-D tissue analysis confines visualization of the islet architecture at a specific cut plane, 3-D representation of image data is preferable for islet assessment. We applied optical clearing to minimize the random light scattering in the mouse pancreatic tissue. The optical-cleared pancreas allowed penetrative, 3-D microscopic imaging of the islet microstructure and vasculature. Specifically, the islet vasculature was revealed by vessel painting-lipophilic dye labeling of blood vessels-for confocal microscopy. The voxel-based confocal micrographs were digitally processed with projection algorithms for 3-D visualization. Unlike the microtome-based tissue imaging, this optical method for penetrative imaging of mouse islets yielded clear, continuous optical sections for an integrated visualization of the islet microstructure and vasculature with subcellular-level resolution. We thus provide a useful imaging approach to change our conventional planar view of the islet structure into a 3-D panorama for better understanding of the islet physiology.

Paper Details

Date Published: 1 July 2010
PDF: 9 pages
J. Biomed. Opt. 15(4) 046018 doi: 10.1117/1.3470241
Published in: Journal of Biomedical Optics Volume 15, Issue 4
Show Author Affiliations
Ya-Yuan Fu, National Tsing Hua Univ. (Taiwan)
Chih-Hsuan Lu, National Tsing Hua Univ. (Taiwan)
Chi-Wen Lin, National Tsing Hua Univ. (Taiwan)
Jyuhn-Huarng Juang, Chang-Gung Memorial Hospital (Taiwan)
Grigori Enikolopov, Cold Spring Harbor Lab. (United States)
Eric Sibley, Stanford Univ. School of Medicine (United States)
Ann-Shyn Chiang, National Tsing Hua Univ. (Taiwan)
Shiue-Cheng Tang, National Tsing Hua Univ. (Taiwan)

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