Cited by 87Bone Metabolism and DiseasesAdvanced Fluorescence Microscopy TechniquesBone health and osteoporosis research

Novel approaches for two and three dimensional multiplexed imaging of osteocytes

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Kamel-ElSayed, Suzan A., Tiede-Lewis, LeAnn M., Lu, Yongbo, Veno, Patricia A., Dallas, Sarah L.·2015·Bone

Abstract

Although osteocytes have historically been viewed as quiescent cells, it is now clear that they are highly active cells in bone and play key regulatory roles in diverse skeletal functions, including mechanotransduction, phosphate homeostasis and regulation of osteoblast and osteoclast activity. Three dimensional imaging of embedded osteocytes and their dendritic connections within intact bone specimens can be quite challenging and many of the currently available methods are actually imaging the lacunocanalicular network rather than the osteocytes themselves. With the explosion of interest in the field of osteocyte biology, there is an increased need for reliable ways to image these cells in live and fixed bone specimens. Here we report the development of reproducible methods for 2D and 3D imaging of osteocytes in situ using multiplexed imaging approaches in which the osteocyte cell membrane, nucleus, cytoskeleton and extracellular matrix can be imaged simultaneously in various combinations. We also present a new transgenic mouse line expressing a membrane targeted-GFP variant selectively in osteocytes as a novel tool for in situ imaging of osteocytes and their dendrites in fixed or living bone specimens. These methods have been multiplexed with a novel method for labeling of the lacunocanalicular network using fixable dextran, which enables aspects of the osteocyte cell structure and lacunocanalicular system to be simultaneously imaged. The application of these comprehensive approaches for imaging of osteocytes in situ should advance research into osteocyte biology and function in health and disease.

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Crossref · 10.1016/j.bone.2015.02.011

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Authors
Kamel-ElSayed, S. A., Tiede-Lewis, L. M., Lu, Y., Veno, P. A., & Dallas, S. L.
Affiliations
  • Oakland University (US)
  • University of Missouri–Kansas City (US)
Corresponding author
Dallas, Sarah L.
Venue
Bone
Publisher
Elsevier BV
Published
2015-07
Volume
76
Pages
129-140
ISSN
  • 1873-2763 (ISSN-L)
  • 8756-3282
OpenAlex
W2047035939
Cited by
87
References
41
Citations by year
2026: 3 · 2025: 9 · 2024: 5 · 2023: 8 · 2022: 10 · 2021: 4 · 2020: 12 · 2019: 11 · 2018: 7 · 2017: 8 · 2016: 9 · 2015: 1
FWCI
3.60
Type
journal article
Language
en
Update notices
erratum (2016-02-01)
Open access
Locations
  • Bone (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
NIH (R21-AR054449, RO1-AR051517, S10RR027668, PO1-AR46798)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bone Metabolism and Diseases
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Advanced Fluorescence Microscopy Techniques
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Bone health and osteoporosis research
Keywords
osteocytes, multiplexed imaging, 3D imaging, transgenic mice, cytoskeleton, extracellular matrix, mechanotransduction, phosphate homeostasis
MeSH terms
Animals, Diagnostic Imaging, Mice, Inbred C57BL, Mice, Transgenic, Osteocytes, Extracellular Matrix Proteins, Green Fluorescent Proteins, Mice

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