ArticleScience advances2026
Activation of the YAP1/pSTAT3/NRP1 axis in peritendinous sensory nerves promotes tendon healing.
Article in Science advances, 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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10 authors.
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Abstract
Chemotactic migration of peritendinous nerves is essential for tendon regeneration, yet the underlying neuroelectrical mechanisms remain unclear. Here, we identify an electrically responsive yes-associated protein 1 (YAP1)/phosphorylated signal transducer and activator of transcription 3 (pSTAT3)/neuropilin-1 (NRP1) signaling axis in sensory neurons. Electrical stimulation enhances YAP1-pSTAT3 interaction, promotes pSTAT3 nuclear translocation and transcriptional activity, and up-regulates NRP1 to support growth of calcitonin gene-related peptide (CGRP)-positive sensory fibers. Guided by these findings, we engineered a bifunctional piezoelectric patch composed of poly(vinylidene difluoride-trifluoroethylene) [P(VDF-TrFE)] and regenerated silk fibroin@poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (RSF@P:P), coupling mechanically induced electrical cues with dynamic lubrication. Under ultrasound activation, the P(VDF-TrFE) layer generates localized electrical signals that facilitate sensory-nerve and vascular ingrowth, while the RSF@P:P layer undergoes piezoelectric-triggered gel-sol transition to form a low-friction interface and reduce adhesion. In rat and Bama minipig models, the patch markedly enhanced tendon regeneration and decreased adhesion scores by ~50%. These findings establish a neuroelectrically guided strategy for enhancing tendon healing.
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