Live30 webinars are thirty minute presentations designed to update you on the latest innovations, applications and data in a fast yet interactive format.
The gene therapy industry has benefitted from exciting biological advances in recent years, fuelling an ever-growing desire to ensure that more patients can benefit from these novel treatments. However, for these treatments to become widely available, manufacturing systems must keep pace with biological advances. Lack of novel manufacturing systems leave gene therapies costly, difficult to produce at scale, and subject to batch-to-batch variability.
One significant challenge comes in the manufacturing of AAV, a popular choice of viral vector to deliver new gene therapies. AAV is typically manufactured using plasmids, which are limited in efficiency and scalability. In this webinar, Dr Ryan Cawood describes how OXGENE’s plasmid free TESSA™ technology brings ‘a new era for AAV manufacture’ by manipulating the adenoviral lifecycle to provide wild type levels of adenoviral help for AAV production, without subsequent high levels of contamination.
TESSA™ vectors directly encode the genetic material required for AAV production, removing the need for plasmids to perform that function. These vectors take advantage of the dual phases of the adenoviral lifecycle to produce AAV, while limiting adenoviral contamination. Early phase adenoviral gene expression provides help for high titre AAV manufacture, while late phase gene expression, responsible for adenovirus contamination, is switched off. This increases rAAV yield, packaging efficiency and infectivity compared with plasmid based rAAV manufacture, and represses adenovirus production by 99.99999%. TESSA™ technology is fully scalable and is ideally suited for rapid and continuous production of GMP quality AAV, reducing the potential for batch-to-batch variation. Ultimately, TESSA™ technology will result in improved cost of goods and improved safety of gene therapies.