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Evaluation of the Single‐Use Fixed‐Bed Bioreactors in Scalable Virus Production
Biotechnology Journal ( IF 3.2 ) Pub Date : 2020-09-24 , DOI: 10.1002/biot.202000020
Hanna P. Lesch 1, 2 , Piia Valonen 2 , Minna Karhinen 2
Affiliation  

The accelerating development of gene therapy from research towards clinical trials and beyond has elevated the demand for practical viral vector‐manufacturing solutions. The use of disposable upstream technology is gaining traction in clinical manufacturing. Packed‐bed or fixed‐bed reactors, where column is packed with immobilized biocatalyst particles providing surface to constrain the cells in a particular region of the reactor, have been widely used in bioprocessing applications since mid‐1900s. However, the world's first single‐use, fully integrated, high cell density, fixed‐bed bioreactor was launched only approximately a decade ago. By now, several single‐use, fixed‐bed technology solutions have been developed in a small scale. Scaling‐up the manufacturing can be challenging and for commercial‐scale manufacturing, there is practically only one single‐use, good manufacturing practice‐compliant option available. This study reviews the latest, fully disposable, fixed‐bed bioreactors; compares the virus production in the different systems; and discusses important manufacturing cost‐related topics. It is predicted that single‐use, fixed‐bed bioreactors will receive even more attention in the field of viral vector manufacturing and commercialization, especially with the need for higher virus titers and virus yields.

中文翻译:

可扩展病毒生产中一次性使用固定床生物反应器的评估

基因治疗从研究到临床试验以及其他方面的加速发展,都增加了对实际病毒载体生产解决方案的需求。一次性上游技术的使用在临床生产中越来越受欢迎。自1900年代中期以来,填充床或固定床反应器的色谱柱中装有固定化的生物催化剂颗粒,该颗粒提供了可在反应器特定区域内约束细胞的表面,已广泛用于生物处理应用中。然而,大约在十年前,世界上第一个一次性使用的,完全集成的,高细胞密度的固定床生物反应器才问世。到目前为止,已经小规模开发了几种一次性使用的固定床技术解决方案。扩大制造规模具有挑战性,对于商业规模的制造而言,实际上只有一种一次性的,符合良好生产规范的选项。这项研究回顾了最新的,完全可抛弃的固定床生物反应器。比较不同系统中的病毒产量;并讨论与制造成本相关的重要主题。据预测,一次性使用的固定床生物反应器将在病毒载体的生产和商业化领域受到更多关注,尤其是在需要更高的病毒滴度和病毒产量的情况下。
更新日期:2020-09-24
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