用于治疗开发的外血视网膜屏障组织工程

Tissue Engineering of Outer Blood Retina Barrier for Therapeutic Development.

作者信息

Hampton Christopher, Bharti Kapil, Song Min Jae

机构信息

Department of Ophthalmology, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.

National Eye Institute, National Institute of Health, Bethesda, MD, USA.

出版信息

Curr Opin Biomed Eng. 2024 Sep;31. doi: 10.1016/j.cobme.2024.100538. Epub 2024 May 13.

Abstract

Age related macular degeneration and other retinal degenerative disorders are characterized by disruption of the outer blood retinal barrier (oBRB) with subsequent ischemia, neovascularization, and atrophy. Despite the treatment advances, there remains no curative therapy, and no treatment targeted at regenerating native-like tissue for patients with late stages of the disease. Here we present advances in tissue engineering, focusing on bioprinting methods of generating tissue allowing for safe and reliable production of oBRB as well as tissue reprogramming with induced pluripotent stem cells for transplantation. We compare these approaches to organ-on-a-chip models for studying the dynamic nature of physiologic conditions. Highlighted within this review are studies that employ good manufacturing practices and use clinical grade methods that minimize potential risk to patients. Lastly, we illustrate recent clinical applications demonstrating both safety and efficacy for direct patient use. These advances provide an avenue for drug discovery and ultimately transplantation.

摘要

年龄相关性黄斑变性和其他视网膜退行性疾病的特征是外层血视网膜屏障(oBRB)破坏,随后出现缺血、新生血管形成和萎缩。尽管治疗取得了进展,但仍然没有治愈性疗法,也没有针对疾病晚期患者再生类似天然组织的治疗方法。在此,我们介绍组织工程的进展,重点是通过生物打印方法生成组织,以安全可靠地生产oBRB,以及利用诱导多能干细胞进行组织重编程用于移植。我们将这些方法与用于研究生理条件动态性质的芯片器官模型进行比较。本综述重点介绍了采用良好生产规范并使用临床级方法以将对患者的潜在风险降至最低的研究。最后,我们阐述了近期的临床应用,这些应用证明了对直接用于患者的安全性和有效性。这些进展为药物发现乃至移植提供了一条途径。

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