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Highly Bioadaptable Hybrid Conduits with Spatially Bidirectional Structure for Precision Nerve Fiber Regeneration via Gene Therapy

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机构: [1]Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China. [2]Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China. [3]Multidisciplinary Centre for Advanced Materials, Institute for Frontier Medical Technology, School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, 333 Longteng Rd., Shanghai, 201620, P. R. China. [4]Head & Neck Oncology Ward, Cancer Center, West China Hospital, Cancer Center, Sichuan University, Chengdu, 610041, P. R. China. [5]Spine Lab, Department of Orthopedic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China. [6]Department of Orthopedic Trauma, The First People's Hospital of Kunshan affiliated with Jiangsu University, Suzhou, Jiangsu, 215300, P. R. China. [7]Department of Gynecology, West China Second Hospital, Sichuan University, Chengdu, 610041, P. R. China.
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关键词: genetic therapy nerve conduits neuroautonomous selectivity neuroplasticity Wallerian degeneration

摘要:
Peripheral nerve deficits give rise to motor and sensory impairments within the limb. The clinical restoration of extensive segmental nerve defects through autologous nerve transplantation often encounters challenges such as axonal mismatch and suboptimal functional recovery. These issues may stem from the limited regenerative capacity of proximal axons and the subsequent Wallerian degeneration of distal axons. To achieve the integration of sensory and motor functions, a spatially differential plasmid DNA (pDNA) dual-delivery nanohydrogel conduit scaffold is devised. This innovative scaffold facilitates the localized administration of the transforming growth factor β (TGF-β) gene in the proximal region to accelerate nerve regeneration, while simultaneously delivering nicotinamide mononucleotide adenylyltransferase 2 (NMNAT2) to the distal region to mitigate Wallerian degeneration. By promoting autonomous and selective alignment of nerve fiber gap sutures via structure design, the approach aims to achieve a harmonious unification of nerve regeneration, neuromotor function, and sensory recovery. It is anticipated that this groundbreaking technology will establish a robust platform for gene delivery in tissue engineering.© 2024 The Authors. Advanced Science published by Wiley-VCH GmbH.

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出版当年[2023]版:
大类 | 1 区 材料科学
小类 | 1 区 化学:综合 1 区 材料科学:综合 2 区 纳米科技
最新[2023]版:
大类 | 1 区 材料科学
小类 | 1 区 化学:综合 1 区 材料科学:综合 2 区 纳米科技
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出版当年[2023]版:
Q1 CHEMISTRY, MULTIDISCIPLINARY Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY
最新[2023]版:
Q1 CHEMISTRY, MULTIDISCIPLINARY Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Q1 NANOSCIENCE & NANOTECHNOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2023版] 出版当年五年平均 出版前一年[2023版]

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第一作者机构: [1]Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China. [2]Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
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通讯机构: [1]Orthopedics Research Institute, Department of Orthopedics, West China Hospital, Sichuan University, Chengdu, 610041, P. R. China. [2]Trauma Medical Center, Department of Orthopedics Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China.
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