了解血管生成以及血管生成生长因子在工程组织血管化中的作用。
Understanding angiogenesis and the role of angiogenic growth factors in the vascularisation of engineered tissues.
机构信息
Division of Surgery and Interventional Science, Centre for Nanotechnology and Tissue Engineering, Royal Free Campus, UCL, London, NW3 2PF, UK.
Lister Hospital, Stevenage, UK.
出版信息
Mol Biol Rep. 2021 Jan;48(1):941-950. doi: 10.1007/s11033-020-06108-9. Epub 2021 Jan 3.
Tissue engineering is a rapidly developing field with many potential clinical applications in tissue and organ regeneration. The development of a mature and stable vasculature within these engineered tissues (ET) remains a significant obstacle. Currently, several growth factors (GFs) have been identified to play key roles within in vivo angiogenesis, including vascular endothelial growth factor (VEGF), platelet derived growth factor (PDGF), FGF and angiopoietins. In this article we attempt to build on in vivo principles to review the single, dual and multiple GF release systems and their effects on promoting angiogenesis. We conclude that multiple GF release systems offer superior results compared to single and dual systems with more stable, mature and larger vessels produced. However, with more complex release systems this raises other problems such as increased cost and significant GF-GF interactions. Upstream regulators and pericyte-coated scaffolds could provide viable alternative to circumnavigate these issues.
组织工程是一个快速发展的领域,在组织和器官再生方面有许多潜在的临床应用。在这些工程组织(ET)中发展成熟稳定的脉管系统仍然是一个重大障碍。目前,已经确定了几种生长因子(GFs)在体内血管生成中发挥关键作用,包括血管内皮生长因子(VEGF)、血小板衍生生长因子(PDGF)、成纤维细胞生长因子和血管生成素。在本文中,我们试图根据体内的原理来回顾单一、双重和多重 GF 释放系统及其对促进血管生成的影响。我们得出的结论是,与单一和双重系统相比,多重 GF 释放系统提供了更好的结果,产生更稳定、成熟和更大的血管。然而,随着释放系统变得更加复杂,会出现其他问题,例如成本增加和 GF 之间的相互作用显著。上游调节剂和周细胞包被支架可以提供可行的替代方案来解决这些问题。