ArticleNature neuroscience2026
Tibial bone compression promotes recovery after brain injury through osteocyte PIEZO1.
Article in Nature neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
17 authors.
Funding
Abstract
Traumatic brain injury (TBI) accelerates bone healing and induces heterotopic ossification, raising the question of whether an injured brain benefits from bone. Here we reveal that dynamic compressive tibial axial loading (DCTAL), a model of tibial bone compression, increased survival and promoted motor and cognitive recovery after stroke and TBI in mice, as well as in pig TBI models. DCTAL reduced neuron loss, attenuated chronic inflammation and astrogliosis and stimulated neuronal regeneration after TBI. Deletion of the mechanosensory channel Piezo1 in osteocytes reversed these benefits, while serum from DCTAL mice recapitulated them. Osteocytes transduced mechanical signals to directly secrete factors such as IL-1R2, APOL11a and HSP70, while indirectly increasing serum levels of BDNF, PF4 and dopamine. These factors synergistically protected against TBI. Altogether, we establish a bone-brain axis in which bone endocrine function can be modulated by mechanical forces to enhance brain repair after injury.
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Registered trials
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