Validation of digital droplet PCR assays for cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 unspliced RNA for clinical studies in HIV-1 cure research
Copyright © 2023. Published by Elsevier B.V..
BACKGROUND: Cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 unspliced RNA (usRNA) are important virological parameters for monitoring HIV-1 persistence and activation of latent HIV-1. Assays fully validated by CLIA and/or GCLP standards are needed for future clinical trials that seek to evaluate treatments directed towards HIV-1 cure.
OBJECTIVES: To determine performance characteristics of sensitive, moderate-throughput, digital droplet PCR (ddPCR) assays for cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 usRNA that can detect a broad range of HIV-1 M-group subtypes.
STUDY DESIGN: To evaluate linearity, limit of detection, precision, and accuracy of each assay, contrived specimens were analyzed in a background of uninfected PBMC. Detection breadth was evaluated by in silico analysis of primer and probes sets and analysis of material harvested from PBMC infected in vitro with various HIV-1 subtypes. A cohort of clinical specimens from viremic and virologically suppressed individuals was analyzed to demonstrate applicability to clinical research.
RESULTS: The empirically determined limit of detection of these assays was 29, 7, and 60 copies per million PBMC for HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 usRNA, respectively. The assays detect a broad range of HIV-1 M-group subtypes. Finally, analysis of clinical specimens demonstrate that these assays can detect low levels of cell-associated HIV-1 DNA, HIV-1 usRNA, and HIV-1 2-LTR circle and correlate with clinical histories and viral loads of untreated and antiretroviral treated individuals.
CONCLUSIONS: We report the clinical validation of three HIV reservoir assays with broad HIV-1 coverage for future cure studies.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:170 |
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Enthalten in: |
Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology - 170(2024) vom: 19. Feb., Seite 105632 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Reed, Jonathan [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 22.01.2024 Date Revised 02.04.2024 published: Print-Electronic Citation Status MEDLINE |
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doi: |
10.1016/j.jcv.2023.105632 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM366043501 |
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245 | 1 | 0 | |a Validation of digital droplet PCR assays for cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 unspliced RNA for clinical studies in HIV-1 cure research |
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500 | |a Date Revised 02.04.2024 | ||
500 | |a published: Print-Electronic | ||
500 | |a Citation Status MEDLINE | ||
520 | |a Copyright © 2023. Published by Elsevier B.V. | ||
520 | |a BACKGROUND: Cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 unspliced RNA (usRNA) are important virological parameters for monitoring HIV-1 persistence and activation of latent HIV-1. Assays fully validated by CLIA and/or GCLP standards are needed for future clinical trials that seek to evaluate treatments directed towards HIV-1 cure | ||
520 | |a OBJECTIVES: To determine performance characteristics of sensitive, moderate-throughput, digital droplet PCR (ddPCR) assays for cell-associated HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 usRNA that can detect a broad range of HIV-1 M-group subtypes | ||
520 | |a STUDY DESIGN: To evaluate linearity, limit of detection, precision, and accuracy of each assay, contrived specimens were analyzed in a background of uninfected PBMC. Detection breadth was evaluated by in silico analysis of primer and probes sets and analysis of material harvested from PBMC infected in vitro with various HIV-1 subtypes. A cohort of clinical specimens from viremic and virologically suppressed individuals was analyzed to demonstrate applicability to clinical research | ||
520 | |a RESULTS: The empirically determined limit of detection of these assays was 29, 7, and 60 copies per million PBMC for HIV-1 DNA, HIV-1 2-LTR circle, and HIV-1 usRNA, respectively. The assays detect a broad range of HIV-1 M-group subtypes. Finally, analysis of clinical specimens demonstrate that these assays can detect low levels of cell-associated HIV-1 DNA, HIV-1 usRNA, and HIV-1 2-LTR circle and correlate with clinical histories and viral loads of untreated and antiretroviral treated individuals | ||
520 | |a CONCLUSIONS: We report the clinical validation of three HIV reservoir assays with broad HIV-1 coverage for future cure studies | ||
650 | 4 | |a Journal Article | |
650 | 4 | |a Research Support, N.I.H., Extramural | |
650 | 4 | |a Research Support, Non-U.S. Gov't | |
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650 | 4 | |a Clinical validation | |
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650 | 4 | |a digital droplet PCR | |
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700 | 1 | |a Kwak, Ginger |e verfasserin |4 aut | |
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700 | 1 | |a Degli-Angeli, Emily J |e verfasserin |4 aut | |
700 | 1 | |a Goecker, Erin A |e verfasserin |4 aut | |
700 | 1 | |a Greninger, Alexander L |e verfasserin |4 aut | |
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