Longitudinal Dynamics of Intact HIV Proviral DNA and Outgrowth Virus Frequencies in a Cohort of Individuals Receiving Antiretroviral Therapy
| Autor: | Shane D Falcinelli, Kayla W Kilpatrick, Jenna Read, Ross Murtagh, Brigitte Allard, Simon Ghofrani, Jennifer Kirchherr, Katherine S James, Erin Stuelke, Caroline Baker, JoAnn D Kuruc, Joseph J Eron, Michael G Hudgens, Cynthia L Gay, David M Margolis, Nancie M Archin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male 0301 basic medicine 030106 microbiology Human immunodeficiency virus (HIV) Proviral dna Biology medicine.disease_cause Virus Major Articles and Brief Reports 03 medical and health sciences chemistry.chemical_compound Proviruses medicine Humans Immunology and Allergy Longitudinal Studies Retrospective Studies HIV Middle Aged Provirus Antiretroviral therapy Virology HIV proviral DNA Cross-Sectional Studies 030104 developmental biology Infectious Diseases Anti-Retroviral Agents chemistry DNA Viral Cohort Female DNA |
| Zdroj: | J Infect Dis |
| ISSN: | 1537-6613 0022-1899 |
| Popis: | Background The replication-competent human immunodeficiency virus (HIV) reservoir is the major barrier to cure. The quantitative viral outgrowth assay (QVOA), the gold-standard method to quantify replication-competent HIV, is resource intensive, which limits its application in large clinical trials. The intact proviral DNA assay (IPDA) requires minimal cell input relative to QVOA and quantifies both defective and intact proviral HIV DNA, the latter potentially serving as a surrogate marker for replication-competent provirus. However, there are limited cross-sectional and longitudinal data on the relationship between IPDA and QVOA measurements. Methods QVOA and IPDA measurements were performed on 156 resting CD4 T-cell (rCD4) samples from 83 antiretroviral therapy-suppressed HIV-positive participants. Longitudinal QVOA and IPDA measurements were performed on rCD4 from 29 of these participants. Results Frequencies of intact, defective, and total proviruses were positively associated with frequencies of replication-competent HIV. Longitudinally, decreases in intact proviral frequencies were strikingly similar to that of replication-competent virus in most participants. In contrast, defective proviral DNA frequencies appeared relatively stable over time in most individuals. Conclusions Changes in frequencies of IPDA-derived intact proviral DNA and replication-competent HIV measured by QVOA are similar. IPDA is a promising high-throughput approach to estimate changes in the frequency of the replication-competent reservoir. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|