Use of spider silk fibres as an innovative material in a biocompatible artificial nerve conduit.

Use of spider silk fibres as an innovative material in a biocompatible artificial nerve conduit.
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DOI:
10.1111/j.1582-4934.2006.tb00436.x
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发表时间:
2006-07
影响因子:
5.3
通讯作者:
Vogt PM
Vogt PM
中科院分区:
医学2区
文献类型:
--
作者:
Allmeling C;Jokuszies A;Reimers K;Kall S;Vogt PM

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周围神经的缺损仍然是外科神经重建的一个挑战。最近的研究集中在用不同的合成或生物材料制成的人工神经导管来替代。在我们的研究中,我们首次描述了蜘蛛丝纤维作为一种新材料在神经组织工程中的应用。雪旺细胞(SC)在蜘蛛丝纤维上培养。与聚二氧杂环己酮单丝(PDS)相比,细胞在纤维上黏附得更快。在活/死实验中,SC的存活和增殖正常。蚕丝纤维被细胞完全包裹。我们研制了去细胞静脉、蜘蛛丝纤维和在基质中稀释的SC复合神经移植物。这些人工神经移植物可以在体外培养一周。组织学分析表明,这些细胞是至关重要的,并沿着丝纤维形成明显的柱状结构。综上所述,我们的研究结果表明,蜘蛛丝、去细胞静脉和SC与基质的混合物可以成功地构建人工神经移植物。
Defects of peripheral nerves still represent a challenge for surgical nerve reconstruction. Recent studies concentrated on replacement by artificial nerve conduits from different synthetic or biological materials. In our study, we describe for the first time the use of spider silk fibres as a new material in nerve tissue engineering. Schwann cells (SC) were cultivated on spider silk fibres. Cells adhered quickly on the fibres compared to polydioxanone monofilaments (PDS). SC survival and proliferation was normal in Live/Dead assays. The silk fibres were ensheathed completely with cells. We developed composite nerve grafts of acellularized veins, spider silk fibres and SC diluted in matrigel. These artificial nerve grafts could be cultivated in vitro for one week. Histological analysis showed that the cells were vital and formed distinct columns along the silk fibres. In conclusion, our results show that artificial nerve grafts can be constructed successfully from spider silk, acellularized veins and SC mixed with matrigel.
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