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In Vitro Response to Functionalized Self-Assembled Peptide Scaffolds for Three-Dimensional Cell Culture

文献类型： 外文期刊

作者： Modepalli, Vengama N. 1 ; Rodriguez, Alexandra L. 3 ; Li, Rui 1 ; Pavuluri, Sivapriya 1 ; Nicholas, Kevin R. 1 ; Ba 1 ;

作者机构： 1.Deakin Univ, Ctr Chem & Biotechnol, Waurn Ponds, Vic 3217, Australia

2.Deakin Univ, Sch Med, Waurn Ponds, Vic 3217, Australia

3.Australian Natl Univ, Coll Engn & Comp Sci, Res Sch Engn, Acton, ACT 0200, Australia

4.Deakin Univ, Fac Sci Engn & Built Environm, Waurn Ponds, Vic 3217, Australia

5.Chinese Acad Trop Agr Sci, Coconut Res Inst, Wenchang 571339, Hainan, Peoples R China

关键词： hydrogels;nanostructures;peptides;self-assembly;scaffolds

期刊名称：BIOPOLYMERS （ 影响因子：2.505； 五年影响因子：2.235 ）

ISSN： 0006-3525

年卷期： 2014 年 102 卷 2 期

页码：

收录情况： SCI

摘要： Nanomaterials are rich in potential, particularly for the formation of scaffolds that mimic the landscape of the host environment of the cell. This niche arises from the spatial organization of a series of biochemical and biomechanical signals. Self-assembling peptides have emerged as an important tool in the development of functional (bio-)nanomaterials; these simple, easily synthesized subunits form structures which present the properties of these larger, more complex systems. Scaffolds based upon these nanofibrous matrices are promising materials for regenerative medicine as part of a new methodology in scaffold design where a "bottom-up" approach is used in order to simulate the native cellular milieu. Importantly, SAPs hold the potential to be bioactive through the presentation of biochemical and biomechanical signals in a context similar to the natural extracellular matrix, making them ideal targets for providing structural and chemical support in a cellular context. Here, we discuss a new methodology for the presentation of biologically relevant epitopes through their effective presentation on the surface of the nanofibers. Here, we demonstrate that these signals have a direct effect on the viability of cells within a three-dimensional matrix as compared with an unfunctionalized, yet mechanically and morphologically similar system. (C) 2014 Wiley Periodicals, Inc.

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