Viralgen exclusive technology for rAAV production

Our technology

01Triple Plasmid Transfection

Genes are the blueprints of the human body. These DNA based messages provide the body’s cells with instructions on how to make proteins that are critical to its function. The expression of faulty proteins is often caused by corrupted or missing genes, or by erroneous modifications to downstream products of genes.



Historically, there were several recombinant viral vectors available for the delivery of therapeutic genetic cargo to the body’s cells. Recombinant adeno-associated virus (rAAV) has become the dominant gene-delivery vector of choice, aimed at curing or treating disease by delivering new or replacement genes to code for therapeutic proteins in humans.


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02Flowchart cGMP Production

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Pro10™ Cell line

Proprietary Pro10™ is an animal-derived component-free suspension-adapted cell line, derived from HEK293 cells. Pro10™ is a unique high yield universal system that can produce all serotypes and chimeric forms of rAAV.

Upstream process

Plasmid-based transfection of a master cell bank. 50 to 500L single-use stirred-tank bioreactors.

Downstream process

VIRALGEN has the capability of continously processing 50L to 500L batches with depth filtration, affinity and Ion exchange chromatography & tangential flow filtration.

Fill & Finish

Inhouse aseptic fill &finish process.


Manufacturing includes drug product and in-process testing services to ensure the identity, quality and purity of the product.