Jiang Yuhui, Tang Xiaoxuan, Li Tao, Ling Jue, Yang Yumin
Medical School of Nantong University, Nantong University, Nantong, China.
Key Laboratory of Neuroregeneration, Ministry of Education and Jiangsu Province, Co-innovation Center of Neuroregeneration, Jiangsu Clinical Medicine Center of Tissue Engineering and Nerve Injury Repair, Nantong University, Nantong, China.
Front Bioeng Biotechnol. 2022 Oct 18;10:1039777. doi: 10.3389/fbioe.2022.1039777. eCollection 2022.
Peripheral nerve injury is a clinically common injury that causes sensory dysfunction and locomotor system degeneration, which seriously affects the quality of the patients' daily life. Long gapped defects in large nerve are difficult to repair surgery and limited donor source of autologous nerve greatly challenges the successful nerve repair by transplantation. Significantly, remarkable progress has been made in repairing the peripheral nerve injury using artificial nerve grafts and a variety of products for peripheral nerve repair have emerged been approved globally in recent years. The raw materials of these commercial products includes natural/synthetic polymers, extracellular matrix. Despite a lot of effort, the desirable functional recovery still remains great challenges in long gapped nerve defects. Thus this review discusses the recent development of tissue engineering products for peripheral nerve repair and the design of bionic grafts improving the local microenvironment for accelerating nerve regeneration against locomotor disorder, which may provide potential strategies for the repair of long gaps or thick nerve defects by multifunctional biomaterials.
周围神经损伤是临床上常见的损伤,可导致感觉功能障碍和运动系统退变,严重影响患者的日常生活质量。大神经的长节段缺损难以通过手术修复,且自体神经供体来源有限,这对通过移植成功修复神经构成了巨大挑战。值得注意的是,近年来在使用人工神经移植物修复周围神经损伤方面取得了显著进展,并且有多种用于周围神经修复的产品在全球获得批准。这些商业产品的原材料包括天然/合成聚合物、细胞外基质。尽管付出了很多努力,但在长节段神经缺损中实现理想的功能恢复仍然面临巨大挑战。因此,本综述讨论了用于周围神经修复的组织工程产品的最新进展以及仿生移植物的设计,这些设计可改善局部微环境以加速神经再生,对抗运动障碍,这可能为通过多功能生物材料修复长节段或粗大神经缺损提供潜在策略。