DsDNA Viruses TRIZ Cases

Linear AD-sequence fragments enable nucleic acid loading into empty AAV particles without denaturation, preserving infectious activity and lowering cytotoxicity.

Recombinant plasmids boost miRNA production to degrade CXCR2 mRNA, helping restore immune homeostasis when CXCR2 is overexpressed.

Separate adenoviral vectors for AAV Rep and Cap raise rAAV yield while improving production stability and scale-up for clinical supply.

Recombinant plasmids boost miRNA against CXCR3 mRNA, lowering overexpression and helping restore immune homeostasis.

Recombinant plasmids boost miRNA production to degrade or inactivate CXCR2 mRNA, helping restore homeostatic balance in disease.

Recombinant plasmids boost miRNA production to degrade CXCR3 mRNA, helping restore homeostasis without fully suppressing immune response.

Carrier-based bioreactor culture, lysis, harvest, and filtration raise recombinant adenovirus vector yield while preserving clinical-grade quality.

US2 and US8 genome changes let HSV-1 vectors grow in suspension cell lines, improving scalable yield while preventing cell-to-cell spread.

Flow cytometry, ELISA, and cytotoxicity assays measure infectivity, transgene expression, and potency for consistent large-scale vector quality.

Repressible operon control silences exogenous genes during packaging, preventing production interference and increasing viral particle yield.

This case combines alkaline lysis, salting, PEG precipitation, and chromatography to reduce protein contamination and retain infectivity.

Deleting Int, S, R, Rz, Xis, and Q genes from lambda phage prevents bacterial lysis and contamination during recombinant protein production.

Controlling infection duration prevents baculoviral cathepsin from degrading VP1 and VP2 capsid proteins, preserving rAAV infectivity.

Recombinant viral genomes incorporate inhibitory oligonucleotides to block toll-like receptor activation and prevent inflammatory responses during gene therapy.

Segmented culturing boosts viral diversity while maintaining high recombination efficiency across species boundaries.

Lowering cis-element plasmid concentration by 10 to 100-fold resolves the trade-off between productivity and host cell fitness.

Alkaline lysis and polyethylene glycol fractionation replace ultracentrifugation, preserving viral infectivity while achieving ultra-high purity.

Optimized basal media with glucose, maltose, and alpha-ketoglutarate overcome nutrient limitations to achieve AAV titers exceeding 1.5×10^12 vg/mL.

Modified CHO cells express poxviral host range factors to support viral propagation.

Co-expressing adenoviral pIX polypeptide resolves low recombination efficiency and wild-type contamination to increase adenovirus yield by up to 4000%.

Penton base mutations remove beta3-integrin interactions, resolving inflammation trade-offs while maintaining gene transfer efficiency.

Optimized salt concentrations in suspension HEK293 culture media boost rAAV yields while preventing degradation and contamination during large-scale production.

Albumin and hyaluronic acid stabilize viral vector formulations, preventing aggregation during high-concentration manufacturing.