Quantification of Antisense HIV RNA in Patients
Study Details
Study Description
Brief Summary
The objective of this study is to quantify the expression levels of the HIV-1 unspliced sense transcript and of total HIV-1 antisense transcripts in PBMCs of HIV-1-infected persons, either still untreated or virologically controlled on treatment, and to investigate their correlations with the HIV reservoir as assessed by the quantification of total and integrated HIV-1 DNA.
Condition or Disease | Intervention/Treatment | Phase |
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Detailed Description
The research team will quantify the expression level of total HIV-1 antisense transcripts in PBMCs from two groups of HIV-1-infected persons: still untreated and virologically controllled on treatment.
The research team will also study (i) the correlation between the expression level of total HIV-1 antisense transcripts and the levels of total and integrated HIV-1 DNA in PBMCs, (ii) the correlation between the expression level of the unspliced HIV-1 sense transcript and the levels of total and integrated HIV-1 DNA in PBMCs, (iii) the correlation between the expression levels of total HIV-1 antisense transcripts and the level of the unspliced HIV-1 sense transcript in PBMCs, (iv) whether the correlations are different in the two groups of HIV-1-infected persons : still untreated patients vs. patients with virological control on antiretroviral treatment. Quantification of viral transcripts will rely on quantitative RT-PCRs, yielding the quantity of viral RNAs, normalized on the expression of 2 housekeeping genes, and on a digital RT-PCR, yielding the absolute number of viral RNA copies.
The quantification of total and integrated HIV-1 DNA will rely on a quantitative PCR yielding the number of HIV-1 DNA copies/million of PBMCs, according to the technique described in Tremeaux P et al, EBioMedicine 2019;41:455-64. The percentage of intact proviral DNA will be estimated according to the technique described in Bruner KM et al, Nature 2019; 566 :120-5
Study Design
Arms and Interventions
Arm | Intervention/Treatment |
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HIV-1-infected, untreated Patients recently diagnosed with chronic HIV-1-infection with detectable HIV-1 RNA in plasma, sampled before treatment initiation |
Other: Blood sampling
30 ml blood sampling for virological research
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HIV-1-infected, undetectable viral load Patients with chronic HIV-1 infection on antiretroviral treatment for less than a year, with a plasma HIV-1 RNA < 50 copies/ml plasma since at least 6 months |
Other: Blood sampling
30 ml blood sampling for virological research
|
Outcome Measures
Primary Outcome Measures
- HIV-1 antisense transcripts in PBMCs [30 months]
Quantification of total antisense transcripts with quantitative PCR and digital RT-PCR
Secondary Outcome Measures
- Correlation between HIV-1 antisense transcripts and HIV-1 DNA in PBMCs [30 months]
Study of the correlation between the expression level of total HIV-1 antisense transcripts and the level of total and integrated HIV-1 DNA in PBMCs
- Correlation between unspliced HIV-1 sense transcripts and HIV-1 DNA in PBMCs [30 months]
Study of the correlation between the expression level of unspliced HIV-1 sense transcripts and the level of total or integrated HIV-1 DNA in PBMCs
- Correlation between HIV-1 sense and antisense transcripts in PBMCs [30 months]
Study of the the correlation between the expression level of total HIV-1 antisense transcripts and the level of unspliced HIV-1 sense transcripts in PBMCs
- Comparison of untreated patients vs. patients with virological control on treatment. [30 months]
Study whether the correlations are different in HIV-1-infected persons with ongoing viral replication and persons with virological control on antiretroviral treatment.
Eligibility Criteria
Criteria
Inclusion Criteria:
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HIV-1 infection
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ability to understand the objectives and protocols of the research and to sign the informed consent
- group 1 : treatment-naive patients with a detectable HIV-1 viral load
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Have not received any antiretroviral treatment
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At the chronic stage as determined during the clinical examination and confirmed by a western blot complete HIV antigens ("env" bands (gp 120 and 160). + "gag" and "pol" bands) with the presence of p31+
*Group 2: patients with chronic HIV-1 infection on antiretroviral therapy efficient
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Have been on antiretroviral therapy for less than a year
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With a plasma HIV RNA < 50 copies/mL of blood for at least 6 months
Exclusion Criteria:
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ongoing HIV primary infection
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coinfection with HIV-2 or HTLV-1/2
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ongoing AIDS-defining clinical condition
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ongoing infectious disease of any type
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ongoing immunosuppressive treatment
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incompetent adults, persons under the protection of a conservator, tutor or guardian
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participation in a trial testing a medication in the 3 months preceding blood sampling
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pregnant or lactating woman
Contacts and Locations
Locations
Site | City | State | Country | Postal Code | |
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1 | Jean-Paul VIARD | Paris | France | 75004 |
Sponsors and Collaborators
- Institut National de la Santé Et de la Recherche Médicale, France
Investigators
None specified.Study Documents (Full-Text)
None provided.More Information
Publications
- C21-16
- 2021-A02266-35