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Molecular characterization of the intact mouse muscle spindle using a multi-omics approach

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Item Type:Article
Title:Molecular characterization of the intact mouse muscle spindle using a multi-omics approach
Creators Name:Bornstein, B. and Heinemann-Yerushalmi, L. and Krief, S. and Adler, R. and Dassa, B. and Leshkowitz, D. and Kim, M.C. and Bewick, G. and Banks, R.W. and Zelzer, E.
Abstract:The proprioceptive system is essential for the control of coordinated movement, posture and skeletal integrity. The sense of proprioception is produced in the brain using peripheral sensory input from receptors such as the muscle spindle, which detects changes in the length of skeletal muscles. Despite its importance, the molecular composition of the muscle spindle is largely unknown. In this study, we generated comprehensive transcriptomic and proteomic datasets of the entire muscle spindle isolated from the murine deep masseter muscle. We then associated differentially expressed genes with the various tissues composing the spindle using bioinformatic analysis. Immunostaining verified these predictions, thus establishing new markers for the different spindle tissues. Utilizing these markers, we identified the differentiation stages the spindle capsule cells undergo during development. Together, these findings provide comprehensive molecular characterization of the intact spindle as well as new tools to study its development and function in health and disease.
Keywords:Multiomics, Muscle Spindles, Proprioception, Proteomics, Skeletal Muscle, Animals, Mice
Publisher:eLife Sciences Publications
Page Range:e81843
Date:6 February 2023
Official Publication:https://doi.org/10.7554/elife.81843
PubMed:View item in PubMed

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