基于物理和化学交联的氨酸基凝不同地促进来自神经组织培养的轴突外生
Andrej Bajic1, Brittmarie Andersson1, Alexander Ossinger1
1Department of Surgical Sciences, Section of Orthopedics, The OrthoLab, Uppsala University, 75185 Uppsala, Sweden.
Biomimetics (Basel, Switzerland)
|March 27, 2024
概括
与原蛋白相比,氨酸水凝显著增强了神经组织中的轴突外生. 不同的神经模型对这些生物材料的反应各不相同,这表明神经再生中的定制应用.
科学领域:
- 生物材料科学 生物材料科学
- 神经科学是一个神经科学.
- 组织工程是组织工程.
背景情况:
- 软生物材料对于神经组织工程至关重要.
- 基于氨酸 (HA) 的水凝提供了有希望的生物相容性.
- 了解神经组织对生物材料的差异反应是有效的再生策略的关键.
研究的目的:
- 为了研究基于氨酸 (HA) 的水凝的不同神经组织模型中的轴突外生.
- 为了比较物理和化学交联的HA水凝的疗效.
- 评估神经营养因子 (NF) 对轴突再生的影响.
主要方法:
- 使用脊髓切片培养 (SCSCs) 和背部根结节培养 (DRGCs).
- 神经组织在原上培养,物理交联HA (Healon 5®) 和化学交联HA水凝.
- 时间间隔显微镜和自动图像分析量化了轴突外生长.
- 定量PCR (qPCR) 评估了神经保护标志物.
主要成果:
- 与原蛋白相比,这两种基于HA的水凝都促进了SCSCs的高级轴突外生.
- 在Healon 5®与NF一起观察到DRGCs的显著增长.
- 基于HA的组在刺激性损伤后显示了NeuN基因表达的增加,这表明神经保护.
- 原体凝导致跨模型的轴突外生很少.
结论:
- 根据神经组织模型,氨酸水凝可以差异地促进轴突外生.
- 化学交联的HA水凝显示了神经再生应用的潜力.
- 该研究强调了生物材料选择对于特定神经组织再生的重要性.
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