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Bobkova MR. Cellular proteins as potential targets for antiretroviral therapy. Vopr Virusol 2023; 68:488-504. [PMID: 38156565 DOI: 10.36233/0507-4088-207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Indexed: 12/30/2023]
Abstract
The review article conducts an in-depth analysis of information gleaned from a comprehensive literature search across Scopus, Web of Science, and MedLine databases. The focal point of this search revolves around the identification and exploration of the mechanisms orchestrated by host cell factors in the replication cycle of the human immunodeficiency virus (HIV-1, Retroviridae: Orthoretrovirinae: Lentivirus: Human immunodeficiency virus-1). The article delves into two primary categories of proteins, namely HIV dependence factors (such as CypA, LEDGF, TSG101) and restriction factors (including SERINС5, TRIM5α, APOBEC3G), providing illustrative examples. The current understanding of the functioning mechanisms of these proteins is elucidated, and an evaluation is presented on the potential development of drugs for treating HIV infection. These drugs aim to either inhibit or stimulate the activity of host factors, offering insights into promising avenues for future research and therapeutic advancements.
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Affiliation(s)
- M R Bobkova
- I. Mechnikov Research Institute for Vaccines and Sera
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Tuberculosis-Associated Immune Reconstitution Inflammatory Syndrome-An Extempore Game of Misfiring with Defense Arsenals. Pathogens 2023; 12:pathogens12020210. [PMID: 36839482 PMCID: PMC9964757 DOI: 10.3390/pathogens12020210] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 01/21/2023] [Accepted: 01/28/2023] [Indexed: 01/31/2023] Open
Abstract
The lethal combination involving TB and HIV, known as "syndemic" diseases, synergistically act upon one another to magnify the disease burden. Individuals on anti-retroviral therapy (ART) are at risk of developing TB-associated immune reconstitution inflammatory syndrome (TB-IRIS). The underlying inflammatory complication includes the rapid restoration of immune responses following ART, eventually leading to exaggerated inflammatory responses to MTB antigens. TB-IRIS continues to be a cause of morbidity and mortality among HIV/TB coinfected patients initiating ART, and although a significant quantum of knowledge has been acquired on the pathogenesis of IRIS, the underlying pathomechanisms and identification of a sensitive and specific diagnostic marker still remain a grey area of investigation. Here, we reviewed the latest research developments into IRIS immunopathogenesis, and outlined the modalities to prevent and manage strategies for better clinical and diagnostic outcomes for IRIS.
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Li Y, Wang Z, Xia H, Zhang J. Influence of Statin Therapy on the Incidence of Cardiovascular Events, Cancer, and All-Cause Mortality in People Living With HIV: A Meta-Analysis. Front Med (Lausanne) 2021; 8:769740. [PMID: 34820402 PMCID: PMC8606632 DOI: 10.3389/fmed.2021.769740] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 09/29/2021] [Indexed: 01/19/2023] Open
Abstract
Background: Possible influences of statin therapy on the risk of cardiovascular events, cancer, and all-cause mortality in people living with HIV (PLWH) remain unclear. We performed a meta-analysis to systematically evaluate the efficacy of statin in PLWH. Methods: Relevant cohort studies were retrieved via a search of the Medline, the Embase, and the Web of Science databases until June 14, 2021. The data were combined with a random-effects model by incorporating the between-study heterogeneity. Results: A total of 12 multivariate cohort studies with 162,252 participants were eligible for the meta-analysis and 36,253 (22.3%) of them were statin users. Pooled results showed that statin use was independently related to a reduced mortality risk in PLWH [adjusted risk ratio (RR): 0.56, 95% CI: 0.44 to 0.72, p < 0.001, I2 = 41%]. In addition, results of the meta-analysis showed that statin use was not significantly associated with a reduced risk of cardiovascular events in PLWH compared to the statin non-users (RR: 1.14, 95% CI: 0.80 to 1.63, p = 0.48, I2 = 42%). However, statin use was significantly related to a reduced risk of cancer in PLWH (RR: 0.73, 95% CI: 0.58 to 0.93, p = 0.009, I2 = 49%). Sensitivity analyses by excluding one study at a time showed consistent results. No significant publication biases were observed. Conclusion: Statin use is associated with reduced all-cause mortality in PLWH. In addition, statin use is related to a reduced risk of cancer, although the risk of cardiovascular events seems not significantly affected.
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Affiliation(s)
- Yanping Li
- School of Chemistry, Biology and Environment, Institute of Biology and Environmental Engineering, Yuxi Normal University, Yuxi, China
| | - Zhandi Wang
- School of Chemistry, Biology and Environment, Institute of Biology and Environmental Engineering, Yuxi Normal University, Yuxi, China
| | - Haimei Xia
- Center of Chinese Medicine, Yunnan Institute of Traditional Chinese Medicine, Kunming, China
| | - Ju Zhang
- Center of Chinese Medicine, Yunnan Institute of Traditional Chinese Medicine, Kunming, China
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Drechsler H, Ayers C, Cutrell J, Arasaratnam R, Bedimo R. Consistent use of lipid lowering therapy in HIV infection is associated with low mortality. BMC Infect Dis 2021; 21:150. [PMID: 33546621 PMCID: PMC7866454 DOI: 10.1186/s12879-021-05787-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 01/11/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND In people living with HIV (PLWH), statins may be disproportionately effective but remain underutilized. A large prospective trial in patients with low to moderate cardiovascular (ASCVD) risk will reveal whether they should be considered in all PLWH. But its effect size may not apply to real-world PLWH with higher ASCVD and mortality risk. Also, the clinical role of non-statin lipid-lowering therapy (LLT) and LLT adherence in this population is unknown. METHODS Comparative multi-level marginal structural model for all-cause mortality examining four time-updated exposure levels to LLT, antihypertensives, and aspirin in a virtual cohort of older PLWH. Incident coronary, cerebrovascular, and overall ASCVD events, serious infections, and new cancer diagnoses served as explanatory outcomes. RESULTS In 23,276 HIV-infected US-veterans who were followed for a median of 5.2 years after virologic suppression overall mortality was 33/1000 patient years: > 3 times higher than in the US population. Use of antihypertensives or aspirin was associated with increased mortality. Past LLT use (> 1 year ago) had no effect on mortality. LLT exposure in the past year was associated with a reduced hazard ratio (HR) of death: 0.59, 95% confidence interval (CI) 0.51-0.69, p < 0.0001 for statin containing LLT and 0.71 (CI: 0.54-0.93), p = 0.03 for statin-free LLT. For consistent LLT use (> 11/12 past months) the HR of death was 0.48 (CI: 0.35-0.66) for statin-only LLT, 0.34 (CI: 0.23-0.52) for combination LLT, and 0.27 (CI: 0.15-0.48) for statin-free LLT (p < 0.0001 for all). The ASCVD risk in these patients was reduced in similar fashion. Use of statin containing LLT was also associated with reduced infection and cancer risk. Multiple contrasting subgroup analyses yielded comparable results. Confounding is unlikely to be a major contributor to our findings. CONCLUSIONS In PLWH, ongoing LLT use may lead to substantially lower mortality, but consistent long-term adherence may be required to reduce ASCVD risk. Consistent non-statin LLT may be highly effective and should be studied prospectively.
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Affiliation(s)
- Henning Drechsler
- VA North Texas Health Care System, Dallas, TX, USA.
- UT Southwestern Medical Center School of Medicine, Dallas, TX, USA.
| | - Colby Ayers
- VA North Texas Health Care System, Dallas, TX, USA
| | | | - Reuben Arasaratnam
- VA North Texas Health Care System, Dallas, TX, USA
- UT Southwestern Medical Center School of Medicine, Dallas, TX, USA
| | - Roger Bedimo
- VA North Texas Health Care System, Dallas, TX, USA
- UT Southwestern Medical Center School of Medicine, Dallas, TX, USA
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Bedimo RJ, Park LS, Shebl FM, Sigel K, Rentsch CT, Crothers K, Rodriguez-Barradas MC, Goetz MB, Butt AA, Brown ST, Gibert C, Justice AC, Tate JP. Statin exposure and risk of cancer in people with and without HIV infection. AIDS 2021; 35:325-334. [PMID: 33181533 PMCID: PMC7775280 DOI: 10.1097/qad.0000000000002748] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
OBJECTIVE To determine whether statin exposure is associated with decreased cancer and mortality risk among persons with HIV (PWH) and uninfected persons. Statins appear to have immunomodulatory and anti-inflammatory effects and may reduce cancer risk, particularly among PWH as they experience chronic inflammation and immune activation. DESIGN Propensity score-matched cohort of statin-exposed and unexposed patients from 2002 to 2017 in the Veterans Aging Cohort Study (VACS), a large cohort with cancer registry linkage and detailed pharmacy data. METHODS We calculated Cox regression hazard ratios (HRs) and 95% confidence intervals (CI) associated with statin use for all cancers, microbial cancers (associated with bacterial or oncovirus coinfection), nonmicrobial cancers, and mortality. RESULTS :The propensity score-matched sample (N = 47 940) included 23 970 statin initiators (31% PWH). Incident cancers were diagnosed in 1160 PWH and 2116 uninfected patients. Death was reported in 1667 (7.0%) statin-exposed, and 2215 (9.2%) unexposed patients. Statin use was associated with 24% decreased risk of microbial-associated cancers (hazard ratio 0.76; 95% CI 0.69-0.85), but was not associated with nonmicrobial cancer risk (hazard ratio 1.00; 95% CI 0.92-1.09). Statin use was associated with 33% lower risk of death overall (hazard ratio 0.67; 95% CI 0.63-0.72). Results were similar in analyses stratified by HIV status, except for non-Hodgkin lymphoma where statin use was associated with reduced risk (hazard ratio 0.56; 95% CI 0.38-0.83) for PWH, but not for uninfected (P interaction = 0.012). CONCLUSION In both PWH and uninfected, statin exposure was associated with lower risk of microbial, but not nonmicrobial cancer incidence, and with decreased mortality.
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Affiliation(s)
- Roger J Bedimo
- Veterans Affairs North Texas Healthcare System, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Lesley S Park
- Stanford University School of Medicine, Palo Alto, California
| | - Fatima M Shebl
- Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Keith Sigel
- Icahn School of Medicine at Mt. Sinai, New York, New York, USA
| | | | - Kristina Crothers
- VA Puget Sound Healthcare System, University of Washington School of Medicine, Seattle, Washington
| | | | - Matthew Bidwell Goetz
- Veterans Affairs Greater Los Angeles Healthcare System, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Adeel A Butt
- VA Pittsburgh Healthcare System, Pittsburgh, Pennsylvamia
- Weill Cornell Medical College, New York, New York, USA
- Weill Cornell Medical College, Doha, Qatar
| | - Sheldon T Brown
- James J. Peters Veterans Affairs Medical Center, Bronx
- Icahn School of Medicine at Mt. Sinai, New York, New York
| | - Cynthia Gibert
- Washington DC Veterans Affairs Medical Center, George Washington University School of Medicine and Health Sciences, Washington, DC
| | - Amy C Justice
- VA Connecticut Healthcare System, West Haven
- Yale School of Medicine, New Haven, Connecticut, USA
| | - Janet P Tate
- VA Connecticut Healthcare System, West Haven
- Yale School of Medicine, New Haven, Connecticut, USA
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Cuomo G, Raimondi A, Rivasi M, Guaraldi G, Borghi V, Mussini C. Adherence to Lipid-Lowering Medication in People Living with HIV: An Outpatient Clinic Drug Direct Distribution Experience. J Res Pharm Pract 2021; 10:10-16. [PMID: 34295847 PMCID: PMC8259599 DOI: 10.4103/jrpp.jrpp_20_96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Accepted: 01/12/2021] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVE Adherence to lipid-lowering drugs could be challenging in our patients as it is in the general population, which is described as low as 25%. Our aim was to evaluate adherence to statins and to investigate clinical event impact on it. METHODS This retrospective study on HIV+ patients attending to Clinic of Modena (Italy) was conducted in order to evaluate characteristics, clinical events, and adherence on lipid-lowering drugs. All drugs for comorbidities are distributed by the hospital pharmacy and recorded in an electronical database. Adherence was also evaluated in patients who were supplied with antilipemics in external pharmacies through phone calls. Patients were considered adherent if the percentage of correct time of drug refill was >80%. FINDINGS Totally 1123 patients were evaluated. Lipid-lowering drugs (statins, fenofibrate, and omega-3 oil) were prescribed in 242 patients (21.5%). Prescription occurred mainly in those who were older, males, and Italians. Two hundred of them (82.6%) used statins alone, 23 (9.5%) only fenofibrate or omega-3 oil, and 19 (7.8%) a combination of both drugs. The median adherence was 90% while patients with adherence >80% resulted 153 (63.2%). Forty-six (19%) had a clinical history of cardiovascular events; 59% of them, placed in secondary prophylaxis, and 76%, already in treatment, continued to adhere. No differences in terms of adherence according to the type of drug distribution (hospital pharmacy or outside pharmacies) were found. CONCLUSION Linking the supply of these drugs to that of antiretrovirals led to a good level of adherence higher than that described in the general population. The majority of the patients who experienced a cardiovascular event remain adherent to the prescribed therapy.
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Affiliation(s)
- Gianluca Cuomo
- Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
| | - Alessandro Raimondi
- Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
| | | | - Giovanni Guaraldi
- Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
| | - Vanni Borghi
- Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
| | - Cristina Mussini
- Clinic of Infectious Diseases, Azienda Ospedaliero-Universitaria Di Modena, Modena, Italy
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Brief Report: No Evidence for an Association Between Statin Use and Lower Biomarkers of HIV Persistence or Immune Activation/Inflammation During Effective ART. J Acquir Immune Defic Syndr 2020; 82:e27-e31. [PMID: 31335587 DOI: 10.1097/qai.0000000000002124] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Statins exert pleiotropic anti-inflammatory and immune-modulatory effects, which might translate into antiviral activity. We evaluated whether reported current statin exposure is associated with lower levels of markers of HIV persistence and immune activation/inflammation. METHODS We compared levels of markers of HIV viral persistence [cell-associated HIV RNA (CA-RNA), CA-DNA, and single copy assay plasma HIV RNA] and immune activation/inflammation (IL-6, IP-10, neopterin, sCD14, sCD163, and TNF-alpha) between statin users and nonusers among participants of ACTG A5321 who initiated antiretroviral therapy (ART) during chronic infection and maintained virologic suppression (HIV-1 RNA levels ≤50 copies/mL) for ≥3 years. RESULTS A total of 303 participants were analyzed. Median time on the current statin was 2.9 years (1.2-5.1). There were no differences between statin users and nonusers in levels of CA-DNA (median 650 vs. 540 copies/10 CD4 T cells; P = 0.58), CA-RNA (53 vs. 37 copies/10 CD4 T cells; P = 0.12), or single copy assay (0.4 vs. 0.4 copies/mL; P = 0.45). Similarly, there were no significant differences between statin users and nonusers in markers of inflammation/activation, except for IP-10 (137 vs. 118 pg/mL; P = 0.028). Findings were unchanged after adjustment for factors including pre-ART CD4 and HIV RNA, and years on ART. CONCLUSIONS In this cohort of persons on long-term suppressive ART, current statin use was not associated with lower levels of HIV persistence or immune activation/inflammation. These results do not support a major role for statins in reducing HIV persistence, although an early transient effect cannot be excluded. Prospective, randomized studies are needed to confirm these findings.
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Clemente GS, Rickmeier J, Antunes IF, Zarganes-Tzitzikas T, Dömling A, Ritter T, Elsinga PH. [ 18F]Atorvastatin: synthesis of a potential molecular imaging tool for the assessment of statin-related mechanisms of action. EJNMMI Res 2020; 10:34. [PMID: 32296962 PMCID: PMC7158976 DOI: 10.1186/s13550-020-00622-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/26/2020] [Indexed: 12/16/2022] Open
Abstract
Background Statins are lipid-lowering agents that inhibit cholesterol synthesis and are clinically used in the primary and secondary prevention of cardiovascular diseases. However, a considerable group of patients does not respond to statin treatment, and the reason for this is still not completely understood. [18F]Atorvastatin, the 18F-labeled version of one of the most widely prescribed statins, may be a useful tool for statin-related research. Results [18F]Atorvastatin was synthesized via an optimized ruthenium-mediated late-stage 18F-deoxyfluorination. The defluoro-hydroxy precursor was produced via Paal-Knorr pyrrole synthesis and was followed by coordination of the phenol to a ruthenium complex, affording the labeling precursor in approximately 10% overall yield. Optimization and automation of the labeling procedure reliably yielded an injectable solution of [18F]atorvastatin in 19% ± 6% (d.c.) with a molar activity of 65 ± 32 GBq·μmol−1. Incubation of [18F]atorvastatin in human serum did not lead to decomposition. Furthermore, we have shown the ability of [18F]atorvastatin to cross the hepatic cell membrane to the cytosolic and microsomal fractions where HMG-CoA reductase is known to be highly expressed. Blocking assays using rat liver sections confirmed the specific binding to HMG-CoA reductase. Autoradiography on rat aorta stimulated to develop atherosclerotic plaques revealed that [18F]atorvastatin significantly accumulates in this tissue when compared to the healthy model. Conclusions The improved ruthenium-mediated 18F-deoxyfluorination procedure overcomes previous hurdles such as the addition of salt additives, the drying steps, or the use of different solvent mixtures at different phases of the process, which increases its practical use, and may allow faster translation to clinical settings. Based on tissue uptake evaluations, [18F]atorvastatin showed the potential to be used as a tool for the understanding of the mechanism of action of statins. Further knowledge of the in vivo biodistribution of [18F]atorvastatin may help to better understand the origin of off-target effects and potentially allow to distinguish between statin-resistant and non-resistant patients.
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Affiliation(s)
- Gonçalo S Clemente
- Department of Nuclear Medicine and Molecular Imaging - University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands
| | - Jens Rickmeier
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Inês F Antunes
- Department of Nuclear Medicine and Molecular Imaging - University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands
| | - Tryfon Zarganes-Tzitzikas
- Department of Drug Design, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Alexander Dömling
- Department of Drug Design, University of Groningen, Antonius Deusinglaan 1, 9713, AV, Groningen, The Netherlands
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Philip H Elsinga
- Department of Nuclear Medicine and Molecular Imaging - University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713, GZ, Groningen, The Netherlands.
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Cevaal PM, Bekker LG, Hermans S. TB-IRIS pathogenesis and new strategies for intervention: Insights from related inflammatory disorders. Tuberculosis (Edinb) 2019; 118:101863. [PMID: 31561185 DOI: 10.1016/j.tube.2019.101863] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 09/10/2019] [Accepted: 09/12/2019] [Indexed: 12/29/2022]
Abstract
In almost one in five HIV/tuberculosis (TB) co-infected patients, initiation of antiretroviral therapy (ART) is complicated by TB immune reconstitution inflammatory syndrome (TB-IRIS). Corticosteroids have been suggested for treatment of severe cases, however no therapy is currently licensed for TB-IRIS. Hence, there is a strong need for more specific therapeutics, and therefore, a better understanding of TB-IRIS pathogenesis. Immune reconstitution following ART is a precariously balanced functional restoration of adaptive immunity. In those patients predisposed to disease, an incomplete activation of the innate immune system leads to a hyper-inflammatory response that comprises partially overlapping innate, adaptive and effector arms, eventually leading to clinical symptoms. Interestingly, many of these pathological mechanisms are shared by related inflammatory disorders. We here describe therapeutic strategies that originate from these other disciplines and discuss their potential application in TB-IRIS. These new avenues of interventions range from final-phase treatment of symptoms to early-phase prevention of disease onset. In conclusion, we propose a novel approach for the discovery and development of therapeutics, based on an updated model of TB-IRIS pathogenesis. Further experimental studies validating the causal relationships in the proposed model could greatly contribute to providing a solid immunological basis for future clinical trials on TB-IRIS therapeutics.
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Affiliation(s)
- Paula M Cevaal
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands.
| | - Linda-Gail Bekker
- Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
| | - Sabine Hermans
- Amsterdam UMC, University of Amsterdam, Department of Global Health, Amsterdam Institute for Global Health and Development, Amsterdam Public Health Research Institute, Paasheuvelweg 25, 1105, BP Amsterdam, the Netherlands; Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, University of Cape Town, Anzio Rd, Observatory, 7925, Cape Town, South Africa
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Rappocciolo G, Sluis-Cremer N, Rinaldo CR. Efficient HIV-1 Trans Infection of CD4 + T Cells Occurs in the Presence of Antiretroviral Therapy. Open Forum Infect Dis 2019; 6:ofz253. [PMID: 31304185 PMCID: PMC6613953 DOI: 10.1093/ofid/ofz253] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 05/23/2019] [Indexed: 11/21/2022] Open
Abstract
Background Antiretroviral therapy (ART) has dramatically improved the quality of life of people with HIV-1 infection (PWH). However, it is not curative, and interruption of ART results in rapid viral rebound. Cell-to-cell transfer of HIV-1, or trans infection, is a highly efficient mechanism of virus infection of CD4+ T cells by professional antigen-presenting cells (APCs), that is, dendritic cells (DCs), macrophages, and B lymphocytes. Methods APC from HIV seronegative donors treated with ART in vitro (CCR5 agonist, NRTI, PI and NNRTI, alone or in combination), were loaded with HIV R5-tropic HIVBal and mixed with autologous or heterologous CD4+ T lymphocytes to assess trans infection. Ex vivo APC from chronic HIV-infected MACS participants before and after initiation of ART, were also loaded with HIV R5-tropic HIVBal and tested for trans infection against autologous or heterologous CD4+ T lymphocytes. Virus replication was measured by p24 ELISA. Results Here we show in vitro that antiretroviral drugs did not block the ability of DCs and B cells to trans-infect CD4+ T cells, although they were effective in blocking direct cis infection of CD4+ T cells. Moreover, ex vivo DCs and B cells from ART-suppressed PWH mediated efficient HIV-1 trans infection of CD4+ T cells, which were resistant to direct cis infection. Conclusions Our study supports a role for HIV-1 trans infection in maintenance of the HIV-1 reservoir during ART.
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Affiliation(s)
- Giovanna Rappocciolo
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Nicolas Sluis-Cremer
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Charles R Rinaldo
- Department of Infectious Diseases and Microbiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.,Department of Pathology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
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Mosepele M, Molefe-Baikai OJ, Grinspoon SK, Triant VA. Benefits and Risks of Statin Therapy in the HIV-Infected Population. Curr Infect Dis Rep 2018; 20:20. [PMID: 29804227 DOI: 10.1007/s11908-018-0628-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW HIV-infected patients face an increased risk for cardiovascular disease (CVD), estimated at 1.5- to 2-fold as compared to HIV-uninfected persons. This review provides a recent (within preceding 5 years) summary of the role of statin therapy and associated role in CVD risk reduction among HIV-infected patients on anti-retroviral therapy. RECENT FINDINGS Statins remain the preferred agents for reducing risk for CVD among HIV-infected populations based on guidance extrapolated from general population (HIV-uninfected) cholesterol treatment guidelines across different settings globally. However, HIV-infected patients are consistently under prescribed statin therapy when compared to their HIV-uninfected counterparts. The most commonly studied statins in clinical care and small randomized and cohort studies have been rosuvastatin and atorvastatin. Both agents are preferred for their potent lipid-lowering effects and their favorable or neutral pleotropic effects on chronic inflammation, renal function, and hepatic steatosis among others. However, growing experience with the newer glucuronidated pitavastatin suggests that this agent has virtually no adverse drug interactions with ART or effects on glucose metabolism-all marked additional benefits when compared with rosuvastatin and atorvastatin while maintaining comparable anti-lipid effects. Pitavastatin is therefore the statin of choice for the ongoing largest trial (6500 participants) to test the benefits of statin therapy among HIV-infected adults. Statins are underutilized in the prevention of CVD in HIV-infected populations based on criteria in established cholesterol guidelines. There is a potential role for statin therapy for HIV-infected patients who do not meet guideline criteria which will be further delineated through ongoing clinical trials.
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Affiliation(s)
- Mosepele Mosepele
- Department of Internal Medicine, Faculty of Medicine, University of Botswana, Gaborone, Botswana. .,Botswana-Harvard AIDS Institute Partnership, Gaborone, Botswana. .,Sir Ketumile Masire Teaching Hospital, Faculty of Medicine, University of Botswana, 3rd Floor, Block F, Room F4069, Gaborone, Botswana.
| | | | - Steven K Grinspoon
- Program in Nutritional Metabolism, Harvard Medical School & Massachusetts General Hospital, Boston, MA, USA
| | - Virginia A Triant
- Divisions of Infectious Diseases and General Internal Medicine, Harvard Medical School & Massachusetts General Hospital, Boston, MA, USA
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