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- Title
A novel method for quantitation of AAV genome integrity using duplex digital PCR.
- Authors
Tereshko, Lauren; Zhao, Xiaohui; Gagnon, Jake; Lin, Tinchi; Ewald, Trevor; Wang, Yu; Feschenko, Marina; Mason, Cullen
- Abstract
Recombinant adeno-associated virus (rAAV) vectors have become a reliable strategy for delivering gene therapies. As rAAV capsid content is known to be heterogeneous, methods for rAAV characterization are critical for assessing the efficacy and safety of drug products. Multiplex digital PCR (dPCR) has emerged as a popular molecular approach for characterizing capsid content due to its high level of throughput, accuracy, and replicability. Despite growing popularity, tools to accurately analyze multiplexed data are scarce. Here, we introduce a novel statistical model to estimate genome integrity from duplex dPCR assays. This work demonstrates that use of a Poisson-multinomial mixture distribution significantly improves the accuracy and quantifiable range of duplex dPCR assays over currently available models.
- Subjects
ADENO-associated virus; RECOMBINANT viruses; DRUG efficacy; GENE therapy; STATISTICAL models
- Publication
PLoS ONE, 2023, Vol 18, Issue 12, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0293277