The intestinal tuft cell nanostructure in 3D

Abstract Once referred to as “peculiar,” tuft cells are enigmatic epithelial cells. Here, we reasoned that future functional studies could be derived from a complete account of the tuft cell ultrastructure. We identified and documented the volumetric ultrastructure at nanometer resolution (4–5 nm/pi...

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Main Authors: Ben Hoover, Valentina Baena, Melanie M. Kaelberer, Feven Getaneh, Skarleth Chinchilla, Diego V. Bohórquez
Format: Article
Language:English
Published: Nature Portfolio 2017-05-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-017-01520-x
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author Ben Hoover
Valentina Baena
Melanie M. Kaelberer
Feven Getaneh
Skarleth Chinchilla
Diego V. Bohórquez
author_facet Ben Hoover
Valentina Baena
Melanie M. Kaelberer
Feven Getaneh
Skarleth Chinchilla
Diego V. Bohórquez
author_sort Ben Hoover
collection DOAJ
description Abstract Once referred to as “peculiar,” tuft cells are enigmatic epithelial cells. Here, we reasoned that future functional studies could be derived from a complete account of the tuft cell ultrastructure. We identified and documented the volumetric ultrastructure at nanometer resolution (4–5 nm/pixel) of specific intestinal tuft cells. The techniques used were Serial Block-Face (SBF) and Automated Tape-collecting Ultra-Microtome (ATUM) Scanning Electron Microscopy (SEM). Our results exposed a short (~15 µm) basal cytoplasmic process devoid of secretory vesicles. Volume rendering of serial sections unveiled several thin cytospinules (~1 µm). These cytospinules project from the tuft cell into the nuclei of neighboring epithelial cells. Volume rendering also revealed within the tuft cell an elegant network of interconnected tubules. The network forms a passage from the base of the microvilli to the rough endoplasmic reticulum. Based on their location and microanatomy, the tuft cells’ cytospinules, and tubular network, might facilitate the exchange of molecular cargo with nuclei of neighboring cells, and the gut lumen.
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spelling doaj.art-fd942acf13664eab84ba5db6ac51b3f22022-12-21T20:34:11ZengNature PortfolioScientific Reports2045-23222017-05-01711810.1038/s41598-017-01520-xThe intestinal tuft cell nanostructure in 3DBen Hoover0Valentina Baena1Melanie M. Kaelberer2Feven Getaneh3Skarleth Chinchilla4Diego V. Bohórquez5School of Medicine, Duke UniversityDepartment of Cell Biology, University of Connecticut Health CenterDepartment of Medicine, Duke UniversitySchool of Medicine, Duke UniversityDepartment of Medicine, Duke UniversityDepartment of Medicine, Duke UniversityAbstract Once referred to as “peculiar,” tuft cells are enigmatic epithelial cells. Here, we reasoned that future functional studies could be derived from a complete account of the tuft cell ultrastructure. We identified and documented the volumetric ultrastructure at nanometer resolution (4–5 nm/pixel) of specific intestinal tuft cells. The techniques used were Serial Block-Face (SBF) and Automated Tape-collecting Ultra-Microtome (ATUM) Scanning Electron Microscopy (SEM). Our results exposed a short (~15 µm) basal cytoplasmic process devoid of secretory vesicles. Volume rendering of serial sections unveiled several thin cytospinules (~1 µm). These cytospinules project from the tuft cell into the nuclei of neighboring epithelial cells. Volume rendering also revealed within the tuft cell an elegant network of interconnected tubules. The network forms a passage from the base of the microvilli to the rough endoplasmic reticulum. Based on their location and microanatomy, the tuft cells’ cytospinules, and tubular network, might facilitate the exchange of molecular cargo with nuclei of neighboring cells, and the gut lumen.https://doi.org/10.1038/s41598-017-01520-x
spellingShingle Ben Hoover
Valentina Baena
Melanie M. Kaelberer
Feven Getaneh
Skarleth Chinchilla
Diego V. Bohórquez
The intestinal tuft cell nanostructure in 3D
Scientific Reports
title The intestinal tuft cell nanostructure in 3D
title_full The intestinal tuft cell nanostructure in 3D
title_fullStr The intestinal tuft cell nanostructure in 3D
title_full_unstemmed The intestinal tuft cell nanostructure in 3D
title_short The intestinal tuft cell nanostructure in 3D
title_sort intestinal tuft cell nanostructure in 3d
url https://doi.org/10.1038/s41598-017-01520-x
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