ArticleScience advances2023
Optogenetic-induced muscle loading leads to mechanical adaptation of the Achilles tendon enthesis in mice.
Article in Science advances, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Do plantar calcaneal spurs make the plantar aponeurosis enthesis stronger? A biomechanical analysis.Journal of anatomy · 2026Article
- Leveraging mechanobiology: Identifying mechanotransducers with potential applications for tendon repair.The Journal of physiology · 2025Review
- A wireless optogenetic stimulation system for long-term function evaluation of mice forelimb with sub-nerve resolution.Nature communications · 2025Article
- Sixteen weeks of high-speed treadmill running is insufficient to induce Achilles tendinopathy in a rat model.American journal of physiology. Cell physiology · 2025Article
- Actuating Extracellular Matrices Decouple the Mechanical and Biochemical Effects of Muscle Contraction on Motor Neurons.Advanced healthcare materials · 2025Article
- Overexpression of enhanced yellow fluorescent protein fused with Channelrhodopsin-2 causes contractile dysfunction in skeletal muscle.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024Article
- Interfacial Tissue Regeneration with Bone.Current osteoporosis reports · 2024Review
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7 authors.
Funding
Abstract
Skeletal shape depends on the transmission of contractile muscle forces from tendon to bone across the enthesis. Loss of muscle loading impairs enthesis development, yet little is known if and how the postnatal enthesis adapts to increased loading. Here, we studied adaptations in enthesis structure and function in response to increased loading, using optogenetically induced muscle contraction in young (i.e., growth) and adult (i.e., mature) mice. Daily bouts of unilateral optogenetic loading in young mice led to radial calcaneal expansion and warping. This also led to a weaker enthesis with increased collagen damage in young tendon and enthisis, with little change in adult mice. We then used RNA sequencing to identify the pathways associated with increased mechanical loading during growth. In tendon, we found enrichment of glycolysis, focal adhesion, and cell-matrix interactions. In bone, we found enrichment of inflammation and cell cycle. Together, we demonstrate the utility of optogenetic-induced muscle contraction to elicit in vivo adaptation of the enthesis.
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