嵌入用于细胞生长和组织形成的调控模块的生物支架:综述。

Bioscaffolds embedded with regulatory modules for cell growth and tissue formation: A review.

作者信息

Wang Pengju, Sun Yazhou, Shi Xiaoquan, Shen Huixing, Ning Haohao, Liu Haitao

机构信息

Department of Mechanical Manufacturing and Automation, School of Mechatronics Engineering, Harbin Institute of Technology, Harbin, 150001, China.

出版信息

Bioact Mater. 2020 Nov 9;6(5):1283-1307. doi: 10.1016/j.bioactmat.2020.10.014. eCollection 2021 May.

Abstract

The demand for artificial organs has greatly increased because of various aging-associated diseases and the wide need for organ transplants. A recent trend in tissue engineering is the precise reconstruction of tissues by the growth of cells adhering to bioscaffolds, which are three-dimensional (3D) structures that guide tissue and organ formation. Bioscaffolds used to fabricate bionic tissues should be able to not only guide cell growth but also regulate cell behaviors. Common regulation methods include biophysical and biochemical stimulations. Biophysical stimulation cues include matrix hardness, external stress and strain, surface topology, and electromagnetic field and concentration, whereas biochemical stimulation cues include growth factors, proteins, kinases, and magnetic nanoparticles. This review discusses bioink preparation, 3D bioprinting (including extrusion-based, inkjet, and ultraviolet-assisted 3D bioprinting), and regulation of cell behaviors. In particular, it provides an overview of state-of-the-art methods and devices for regulating cell growth and tissue formation and the effects of biophysical and biochemical stimulations on cell behaviors. In addition, the fabrication of bioscaffolds embedded with regulatory modules for biomimetic tissue preparation is explained. Finally, challenges in cell growth regulation and future research directions are presented.

摘要

由于各种与衰老相关的疾病以及器官移植的广泛需求,对人造器官的需求大幅增加。组织工程学的一个最新趋势是通过附着在生物支架上的细胞生长来精确重建组织,生物支架是引导组织和器官形成的三维(3D)结构。用于制造仿生组织的生物支架不仅应能够引导细胞生长,还应能够调节细胞行为。常见的调节方法包括生物物理和生化刺激。生物物理刺激线索包括基质硬度、外部应力和应变、表面拓扑结构以及电磁场和浓度,而生化刺激线索包括生长因子、蛋白质、激酶和磁性纳米颗粒。本综述讨论了生物墨水制备、3D生物打印(包括基于挤出、喷墨和紫外线辅助的3D生物打印)以及细胞行为的调节。特别是,它概述了用于调节细胞生长和组织形成的最新方法和设备,以及生物物理和生化刺激对细胞行为的影响。此外,还解释了用于仿生组织制备的嵌入调节模块的生物支架的制造。最后,提出了细胞生长调节方面的挑战和未来的研究方向。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/f259/7662879/0e549521859a/fx1.jpg

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索