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Development of cell-laden 3D scaffolds for efficient engineered skin substitutes by collagen gelation

机译:通过胶原凝胶的高效工程皮肤替代品的Cell-Laden 3D支架的开发

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Conventional collagen scaffolds, which were fabricated like spongy types, have been used widely to promote wound repair since they can enhance various cellular activities including cell proliferation and migration, and even guidance of near cells to work as normal tissues functionally. Fabrication technology of 3 dimensional (3D) scaffolds including solid free-form fabrication and rapid prototyping methods is developing all the time in order to promote wound repair efficiently. In addition, researchers have been studying scaffolds containing other components, such as various cells, growth factors and related materials. In this study, we modified rapid prototyping methods and then set up a cell printing system, which is able to fabricate 3D cell-laden scaffolds for better skin tissue regeneration. These scaffolds have a layered structure and were manufactured using collagen, having optimal biocompatibility, and human primary skin cells including epidermal keratinocytes and dermal fibroblasts. Accordingly, these scaffolds are capable of proliferation and migration of keratinocytes and fibroblasts effectively. Therefore, we suggest that these cell-laden scaffolds can be used as engineered skin substitute (in other words, artificial skin), sufficiently.
机译:常规的胶原蛋白支架如海绵状类型制造,已被广泛用于促进伤口修复,因为它们可以增强各种细胞活性,包括细胞增殖和迁移,甚至在功能上近细胞的指导。 3维(3D)支架的制造技术包括固体自由形式制造和快速原型制作方法,一直在开发,以便有效地促进伤口修复。此外,研究人员一直在研究含有其他组分的支架,例如各种细胞,生长因子和相关材料。在这项研究中,我们修改了快速的原型方法,然后建立了一种细胞印刷系统,其能够制造用于更好的皮肤组织再生的3D细胞载花支架。这些支架具有层状结构,并使用胶原蛋白制造,具有最佳的生物相容性,以及人的原发性皮肤细胞,包括表皮角蛋白细胞和皮肤成纤维细胞。因此,这些支架能够有效地能够有效地增殖角质细胞和成纤维细胞。因此,我们建议这些细胞载花支架可以用作工程皮肤替代品(换句话说,人造皮肤),充分。

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