2024年6月1日 · Current lentiviral vector (LVV) manufacturing approaches primarily use fully transient and adherent processes which present challenges of robustness, scalability, and high cost-of-goods. To address these, we developed clonal suspension cell lines for transient, semi-stable and stable LVV manufacture.

We have developed a scalable LVV platform for rapid and consistent vector production with minimal process development. With decades of experiences and reproducible process data, we use results from the smallest pilot scale to predict larger-scale GMP manufacturing outcomes, thereby reducing process development efforts.

慢病毒载体（lvv）是在 car t 细胞治疗和基因治疗应用中传递遗传物质的常用载体，而优化慢病毒载体下游工艺的流程能解决生物制药下游工艺难题。 慢病毒载体下游工艺的流程优化

2024年5月1日 · 因此， 慢病毒载体 (LVV) 被用于细胞和基因治疗领域，在体外和体内将核酸递送到靶细胞中。我们开发了一种可放大的上游工艺，在Xcellerex XDR 10一次性生物反应器和ReadyToProcess WAVE 25波浪式生物反应器中，使用悬浮培养的HEK293T细胞进行LVV生产。

慢病毒载体 （Lentiviral vectors, LVs）是在人免疫缺陷病毒（HIV-1病毒）基础上改造而成的病毒载体系统，它能高效的将 目的基因 （或 RNAi）导入动物和人的原代细胞或细胞系，对分裂细胞和非分裂细胞均具有感染能力。 慢病毒载体基因组是单股正链RNA，其基因组进入细胞后，在细胞浆中被其自身携带的 反转录酶 反转为DNA，形成DNA整合前复合体，进入细胞核后，DNA整合到细胞基因组中。 整合后的DNA转录成mRNA，回到细胞浆中，表达目的基因或片段。 慢病毒载 …

In this technical note, 2 simplified multi-capillary electrophoresis-based workflows are presented to address the key characterization and in-process attribute evaluation of lentiviral vectors (LVVs). The proteomic analysis workflow provides both protein profiling results and p24-based titer (total particle) determination.

We have developed a scalable and robust upstream process for lentiviral vector (LVV) production of HEK293T cells using ReadyToProcess WAVE™ 25 rocker and Xcellerex™ XDR 10 single-use stirred-tank bioreactor. We describe how to expand HEK293T suspension cells from cryovials to small cell culture in shake flasks and up to a 10 L bioreactor culture.

Lentiviral vector transduction involves the delivery of genetic material to the target cell by exploiting the natural ability of lentiviruses to insert their genetic material into dividing and non-dividing cells. The process begins with the binding of the viral envelope protein to a specific receptor on the target cell membrane.

2024年5月18日 · 因此， 慢病毒载体 (LVV) 被用于细胞和基因治疗领域，在体外和体内将核酸递送到靶细胞中。我们开发了一种可放大的上游工艺，在Xcellerex XDR 10一次性生物反应器和ReadyToProcess WAVE 25波浪式生物反应器中，使用悬浮培养的HEK293T细胞进行LVV生产。

2024年12月20日 · Learn how DoE can be utilized to optimize buffer formulations that enhance LVV stability; Understand key factors affecting LVV stability, including buffer composition, additives, and virus concentration; Explore testing conditions for analyzing short-term and long-term LVV stability