Transverse Tibial Transport Accelerated of Diabetic Wound Healing via Enhanced Wnt/β-catenin-Driven BMSCs Mobilization and Angiogenesis

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ID: 326908
2026
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Abstract
BACKGROUND: The management of severe diabetic foot ulcers (DFUs) remains a major clinical challenge. Tibial cortex transverse transport (TTT) has emerged as an effective surgical intervention, but its underlying mechanism, particularly concerning stem cell mobilization and signaling pathways, is largely unknown. METHODS: A diabetic DFU model was established in New Zealand White rabbits using STZ, followed by TTT surgery. Wound healing was evaluated through photography, H&E, and Masson's trichrome staining. Angiogenesis was assessed by High-resolution X-ray angiography and immunofluorescence. Bone marrow-derived mesenchymal stem cell (BMSC) mobilization was analyzed via CFU-F assays and flow cytometry. Serum levels of SDF-1α, CXCR4, VEGF, and Ang2 were measured by ELISA and qRT-PCR. The activity of the Wnt/β-catenin pathway was determined by Western blot. RESULTS: TTT significantly accelerated wound closure and enhanced tissue regeneration, with improved epidermal/dermal restoration and collagen deposition. Consistently,​ neovascularization in wounds was markedly promoted. Mechanistically, TTT activated the Wnt/β‑catenin signaling pathway in BMSCs, which was associated with enhanced BMSC quantity, mobilization, and migration capacity. Inhibition of this pathway attenuated the TTT‑induced pro‑healing effects. CONCLUSION: TTT promotes healing of DFUs primarily by activating the Wnt/β-catenin pathway in BMSCs, thereby enhancing their mobilization, homing, and pro-angiogenic capacity. This study reveals a key molecular mechanism underlying TTT's efficacy and supports its therapeutic potential for refractory DFU.
Reference Key
openalex_W7204995189 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Baoping Deng, Xiaoyong Ge, Junjie Li, Weiping Deng
Journal stem cells international
Year 2026
DOI
10.1093/stmcls/sxag049
URL
https://doi.org/10.1093/stmcls/sxag049
Keywords Keywords not found

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