Induction of cytokine/chemokine transcription. Proinflammatory cytokine/chemokine transcription was measured following intravenous delivery of 2 × 1012 viral genomes of rAAV6-CMV-hAP or 1011 viral particles of Ad5-CMV-GFP to C57/BL6 mice. Induction of IL-1β, IL-6, TNF-α, MCP-1, or IP-10 gene transcription is shown as the change in cycle threshold (ΔCT) for qPCR versus that for PBS-injected control animals. For each cytokine/chemokine, time point, and vector, the average of the test ΔCT values was calculated and divided by the ΔCT value for PBS-injected animals. P values are for test groups versus PBS-injected animals.