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Evaluating DNA impurities in recombinant adeno-associated virus

A new study found that recombinant adeno-associated virus (rAAV) capsids contain single-stranded DNA impurities derived from plasmid and host cell DNA. The researchers suggest that the adverse effects of these impurities may differ from those of double-stranded DNA, highlighting the need for further evaluation.

SourceMary Ann Liebert, Inc./Genetic Engineering News·JournalHuman Gene Therapy·TypeExperimental study·DateMar 22, 2025

3D genome architecture influences SCID-X1 gene therapy success

Researchers identified the integration site pattern of lentiviral gene therapies in patient cells, shedding light on treatment safety and efficacy. The study found that integration near nuclear pores is associated with improved safety and effectiveness, avoiding oncogene regions where earlier technologies failed.

SourceSt. Jude Children's Research Hospital·JournalScience Advances·TypeRandomized controlled/clinical trial·DateOct 6, 2023

Journal of Pharmaceutical Analysis publishes method for the fast detection of a key antiviral

Researchers developed a novel nanobody-based detection method for recombinant human interferon α2b (rhIFNα2b), which has a lower detection limit than existing methods. The assay's operation time was shortened from two days to a few minutes, making it suitable for rapid market counterfeit detection and early diagnosis of hepatitis.

SourceCactus Communications·JournalJournal of Pharmaceutical Analysis·TypeExperimental study·DateJun 9, 2022

Modifying plant genes without foreign DNA

Researchers at Cornell University's Boyce Thompson Institute have developed a novel approach to genetically modifying plants by using chimeraplasty, a method that coats gold particles with short chimeric DNA/RNA molecules. This technique has the potential to improve crop yields and nutritional value without involving foreign DNA.

SourceCornell University·JournalProceedings of the National Academy of Sciences·DateJul 21, 1999