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Anisotropically Aligned Cell‐Laden Nanofibrous Bundle Fabricated via Cell Electrospinning to Regenerate Skeletal Muscle Tissue
Small ( IF 13.0 ) Pub Date : 2018-10-11 , DOI: 10.1002/smll.201803491
Miji Yeo 1 , Geun Hyung Kim 1
Affiliation  

For muscle regeneration, a uniaxially arranged micropattern is important to mimic the structure of the natural extracellular matrix. Recently, cell electrospinning (CE) has been tested to fabricate cell‐laden fibrous structures by embedding cells directly into micro/nanofibers. Although homogenous cell distribution and a reasonable cell viability of the cell‐laden fibrous structure fabricated using the CE process are achieved, unique topographical cues formed by an aligned fibrous structure have not been applied. In this study, a CE process to achieve not only homogeneous cell distribution with a high cell viability, but also highly aligned cells, which are guided by aligned alginate fibers is employed. To attain the aligned cell‐laden fibrous structure, various processing conditions are examined. The selected condition is applied using C2C12 myoblast cells to ensure the biocompatibility and guidance of cell elongation and alignment. As a control, a cell‐printed scaffold using a 3D bioprinter is used to compare the efficiency of cell alignment and differentiation of myoblasts. Highly arranged, multinucleated cell morphology is confirmed in the CE scaffold, which successively facilitates myogenic differentiation. It is believed that this study will be a new platform for obtaining cell alignment and will significantly benefit the efforts on muscle regeneration.

中文翻译:

通过细胞静电纺丝制备的各向异性排列的载有细胞的纳米纤维束可再生骨骼肌组织。

对于肌肉再生,单轴排列的微图案对于模仿天然细胞外基质的结构很重要。最近,已经测试了细胞静电纺丝(CE)通过将细胞直接嵌入微纤维/纳米纤维中来制造载有细胞的纤维结构。尽管使用CE工艺制造的充满细胞的纤维结构实现了均匀的细胞分布和合理的细胞活力,但尚未应用由排列的纤维结构形成的独特形貌线索。在这项研究中,采用了一种CE工艺,不仅可以实现具有高细胞活力的均匀细胞分布,而且还可以通过由对齐的藻酸盐纤维引导的高度对齐的细胞。为了获得对齐的充满细胞的纤维结构,需要检查各种加工条件。使用C2C12成肌细胞应用所选条件,以确保生物相容性并指导细胞延长和对齐。作为对照,使用3D生物打印机的细胞打印支架用于比较细胞排列和成肌细胞分化的效率。在CE支架中证实了高度排列的多核细胞形态,其随后促进了成肌分化。相信该研究将是获得细胞排​​列的新平台,并将大大有益于肌肉再生的努力。在CE支架中证实了多核细胞的形态,这相继促进了成肌的分化。相信该研究将是获得细胞排​​列的新平台,并将大大有益于肌肉再生的努力。在CE支架中证实了多核细胞的形态,这相继促进了成肌的分化。相信该研究将是获得细胞排​​列的新平台,并将大大有益于肌肉再生的努力。
更新日期:2018-10-11
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