1
|
Renault C, Bolloré K, Pisoni A, Motto-Ros C, Van de Perre P, Reynes J, Tuaillon E. Accuracy of real-time PCR and digital PCR for the monitoring of total HIV DNA under prolonged antiretroviral therapy. Sci Rep 2022; 12:9323. [PMID: 35665775 PMCID: PMC9167282 DOI: 10.1038/s41598-022-13581-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/21/2022] [Indexed: 12/16/2022] Open
Abstract
Total HIV DNA is a standard marker to monitor the HIV reservoir in people living with HIV. We investigated HIV DNA quantification accuracy by a real-time PCR kit (qPCR) and digital PCR (dPCR) method within the same set of primers and probes. Among 48 aviremic patients followed for up to 7 years with qPCR, the mean coefficient of variation of total HIV DNA between two successive measurements was 77% (± 0.42log10 HIVDNA copies/106 PBMC). The total HIV DNA quantified by the two PCR methods has a high correlation (0.99 and 0.83, for 8E5 and PLHIV samples, respectively), but we observed better repeatability and reproducibility of the dPCR compared to the qPCR (CV of 11.9% vs. 24.7% for qPCR, p-value = 0.024). Furthermore, we highlighted a decay of the number of HIV copies in the 8E5 cell line qPCR standard over time (from 0.73 to 0.43 copies per cell), contributing to variations of HIV DNA results in patients whose HIV reservoir should be theoretically stabilized. Our study highlighted that absolute quantification of total HIV DNA by dPCR allows more accurate monitoring of the HIV reservoir than qPCR in patients under prolonged antiretroviral therapy.
Collapse
Affiliation(s)
- Constance Renault
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France
| | - Karine Bolloré
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France
| | - Amandine Pisoni
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France.,CHU de Montpellier, Montpellier, France
| | - Camille Motto-Ros
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France
| | - Philippe Van de Perre
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France.,CHU de Montpellier, Montpellier, France
| | - Jacques Reynes
- IRD UMI 233, INSERM U1175, Montpellier University, Montpellier, France.,Infectious Diseases Department, CHU de Montpellier, Montpellier, France
| | - Edouard Tuaillon
- Pathogenesis and Control of Chronic and Emerging Infections, University of Montpellier, INSERM, Etablissement Français du Sang, Antilles University, Montpellier, France. .,CHU de Montpellier, Montpellier, France.
| |
Collapse
|