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Martínez-Arribas B, Annang F, Díaz-González R, Pérez-Moreno G, Martín J, Mackenzie TA, Castillo F, Reyes F, Genilloud O, Ruiz-Pérez LM, Vicente F, Ramos MC, González-Pacanowska D. Establishment of a screening platform based on human coronavirus OC43 for the identification of microbial natural products with antiviral activity. Microbiol Spectr 2024; 12:e0167923. [PMID: 38009959 PMCID: PMC10783114 DOI: 10.1128/spectrum.01679-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 10/24/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE The COVID-19 pandemic has revealed the lack of effective treatments against betacoronaviruses and the urgent need for new broad-spectrum antivirals. Natural products are a valuable source of bioactive compounds with pharmaceutical potential that may lead to the discovery of new antiviral agents. Specifically, compared to conventional synthetic molecules, microbial natural extracts possess a unique and vast chemical diversity and are amenable to large-scale production. The implementation of a high-throughput screening platform using the betacoronavirus OC43 in a human cell line infection model has provided proof of concept of the approach and has allowed for the rapid and efficient evaluation of 1,280 microbial extracts. The identification of several active compounds validates the potential of the platform for the search for new compounds with antiviral capacity.
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Affiliation(s)
- Blanca Martínez-Arribas
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Frederick Annang
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Rosario Díaz-González
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Guiomar Pérez-Moreno
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Jesús Martín
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Thomas A. Mackenzie
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Francisco Castillo
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Fernando Reyes
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Olga Genilloud
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Luis Miguel Ruiz-Pérez
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
| | - Francisca Vicente
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - María C. Ramos
- Fundación MEDINA, Parque Tecnológico de Ciencias de la Salud, Granada, Spain
| | - Dolores González-Pacanowska
- Instituto de Parasitología y Biomedicina López-Neyra, Consejo Superior de Investigaciones Científicas, Granada, Spain
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HIV and Drug-Resistant Subtypes. Microorganisms 2023; 11:microorganisms11010221. [PMID: 36677513 PMCID: PMC9861097 DOI: 10.3390/microorganisms11010221] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 01/03/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
Acquired Immunodeficiency Syndrome (AIDS) is a human viral infectious disease caused by the positive-sense single-stranded (ss) RNA Human Immunodeficiency Virus (HIV) (Retroviridae family, Ortervirales order). HIV-1 can be distinguished into various worldwide spread groups and subtypes. HIV-2 also causes human immunodeficiency, which develops slowly and tends to be less aggressive. HIV-2 only partially homologates to HIV-1 despite the similar derivation. Antiretroviral therapy (ART) is the treatment approved to control HIV infection, based on multiple antiretroviral drugs that belong to different classes: (i) NNRTIs, (ii) NRTIs, (iii) PIs, (iv) INSTIs, and (v) entry inhibitors. These drugs, acting on different stages of the HIV life cycle, decrease the patient's total burden of HIV, maintain the function of the immune system, and prevent opportunistic infections. The appearance of several strains resistant to these drugs, however, represents a problem today that needs to be addressed as best as we can. New outbreaks of strains show a widespread geographic distribution and a highly variable mortality rate, even affecting treated patients significantly. Therefore, novel treatment approaches should be explored. The present review discusses updated information on HIV-1- and HIV-2-resistant strains, including details on different mutations responsible for drug resistance.
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Sayan M, Yildirim FS, Akhan S, Karaoglan I, Akalin H. Integrase Strand Transfer Inhibitor (INSTI) Genotypic Resistance Analysis in Treatment-nNaive, INSTI Free Antiretroviral-Experienced and INSTI-Experienced Turkish Patients Infected with HIV-1. Curr HIV Res 2022; 20:184-192. [PMID: 35240975 DOI: 10.2174/1570162x20666220303104509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Revised: 01/10/2022] [Accepted: 01/28/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND AND OBJECTIVE Integrase strand transfer inhibitors (INSTIs) are currently the standard of practice for first-line HIV therapy for most patients. We evaluated the mutations associated with INSTI resistance in naive HIV-1 infected patients and treated them with antiretrovirals (ART). METHODS The study, conducted in the 2018 - 2020 period, included 50 ART-naïve patients, 69 INSTI free ART-experienced patients, and 82 INSTI-experienced patients. INSTI resistance mutations were interpreted using the Stanford University HIVdb Program algorithm. RESULTS INSTI resistance was not detected in ART naïve patients. At least one INSTI resistance mutation was detected in 10% of the INSTI-free patients and 29% of the INSTI-treated patients. Major INSTI-mutations E138K, Y143R, S147G, Q148R, N155H, and E157Q were found in raltegravir. Additional mutations, E92Q, E138K, G140A, S147G, and Q148R were found in elvitegravir; E192Q, E138K/T, G140A/S, S147G, Q148H/R, N155H, E157Q were found in dolutegravir (DTG) experienced patients. According to all drug classes, drug resistance mutation prevalences were determined at the rate of 60%, 46%, and 46% in the RAL, EVG, and DTG groups, respectively. CONCLUSION Our findings provide data for treatment and resistance management of INSTIs and may provide feedback for INSTIs resistance surveillance consensus-building efforts. In viral rebound under INSTI treatment, INSTI-resistant mutations follow typical INSTI resistance pathways and high resistance rates. INSTI resistance genotypic analysis should be considered before any DTG-based regimes can be initiated in the future, and reduced DTG susceptibility should be carefully monitored and investigated.
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Affiliation(s)
- Murat Sayan
- Kocaeli University, Research and Education Hospital, PCR Laboratory, Kocaeli, Turkey
- Near East University, DESAM Research Institute, Nicosia, Northern Cyprus
| | - Figen Sarigul Yildirim
- Health Sciences University, Antalya Research and Education Hospital, Department of Infectious Diseases, Antalya, Turkey
| | - Sila Akhan
- Kocaeli University, Medical Faculty, Department of Infectious Diseases and Clinical Microbiology, Kocaeli, Turkey
| | - Ilkay Karaoglan
- Gaziantep University, Medical Faculty, Department of Infectious Diseases and Clinical Microbiology, Gaziantep, Turkey
| | - Halis Akalin
- Uludağ University, Medical Faculty, Department of Infectious Diseases and Clinical Microbiology, Bursa, Turkey
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Mbisa JL, Ledesma J, Kirwan P, Bibby DF, Manso C, Skingsley A, Murphy G, Brown A, Dunn DT, Delpech V, Geretti AM. Surveillance of HIV-1 transmitted integrase strand transfer inhibitor resistance in the UK. J Antimicrob Chemother 2021; 75:3311-3318. [PMID: 32728703 PMCID: PMC7566560 DOI: 10.1093/jac/dkaa309] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 06/15/2020] [Indexed: 12/16/2022] Open
Abstract
Background HIV treatment guidelines have traditionally recommended that all HIV-positive individuals are tested for evidence of drug resistance prior to starting ART. Testing for resistance to reverse transcriptase inhibitors and PIs is well established in routine care. However, testing for integrase strand transfer inhibitor (InSTI) resistance is less consistent. Objectives To inform treatment guidelines by determining the prevalence of InSTI resistance in a national cohort of recently infected individuals. Patients and methods Recent (within 4 months) HIV-1 infections were identified using a Recent Infection Testing Algorithm of new HIV-1 diagnoses in the UK. Resistance-associated mutations (RAMs) in integrase, protease and reverse transcriptase were detected by ultradeep sequencing, which allows for the sensitive estimation of the frequency of each resistant variant in a sample. Results The analysis included 655 randomly selected individuals (median age = 33 years, 95% male, 83% MSM, 78% white) sampled in the period 2014 to 2016 and determined to have a recent infection. These comprised 320, 138 and 197 samples from 2014, 2015 and 2016, respectively. None of the samples had major InSTI RAMs occurring at high variant frequency (≥20%). A subset (25/640, 3.9%) had major InSTI RAMs occurring only as low-frequency variants (2%–20%). In contrast, 47/588 (8.0%) had major reverse transcriptase inhibitor and PI RAMs at high frequency. Conclusions Between 2014 and 2016, major InSTI RAMs were uncommon in adults with recent HIV-1 infection, only occurring as low-frequency variants of doubtful clinical significance. Continued surveillance of newly diagnosed patients for evidence of transmitted InSTI resistance is recommended to inform clinical practice.
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Affiliation(s)
- Jean L Mbisa
- National Infection Service, Public Health England, London, UK.,National Institute for Health Research (NIHR) Health Protection Research Unit in Blood Borne and Sexually Transmitted Infections, London, UK
| | - Juan Ledesma
- National Infection Service, Public Health England, London, UK.,National Institute for Health Research (NIHR) Health Protection Research Unit in Blood Borne and Sexually Transmitted Infections, London, UK
| | - Peter Kirwan
- National Infection Service, Public Health England, London, UK
| | - David F Bibby
- National Infection Service, Public Health England, London, UK
| | - Carmen Manso
- National Infection Service, Public Health England, London, UK
| | | | - Gary Murphy
- National Infection Service, Public Health England, London, UK
| | - Alison Brown
- National Infection Service, Public Health England, London, UK
| | - David T Dunn
- Institute for Global Health, University College London, London, UK
| | - Valerie Delpech
- National Infection Service, Public Health England, London, UK.,National Institute for Health Research (NIHR) Health Protection Research Unit in Blood Borne and Sexually Transmitted Infections, London, UK
| | - Anna Maria Geretti
- Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
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Rai PK, Mueed Z, Chowdhury A, Deval R, Kumar D, Kamal MA, Negi YS, Pareek S, Poddar NK. Current Overviews on COVID-19 Management Strategies. Curr Pharm Biotechnol 2021; 23:361-387. [PMID: 33966618 DOI: 10.2174/1389201022666210509022313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/02/2021] [Accepted: 02/08/2021] [Indexed: 02/08/2023]
Abstract
The coronavirus pandemic has hit the world lately and caused acute respiratory syndrome in humans. The causative agent of the disease was soon brought to focus by scientists as SARS-CoV-2 and later called a novel coronavirus by the general public. Due to the severity and rapid spread of the disease, WHO classifies the COVID-19 pandemic as the 6th public health emergency even after taking efforts like worldwide quarantine and restrictions. Since only symptomatic treatment is available, the best way to control the spread of the virus is by taking preventive measures. Various types of antigen/antibody detection kits and diagnostic methods are available for the diagnosis of COVID-19 patients. In recent years, various phytochemicals and repurposing drugs are showing a broad range of anti-viral activities with different modes of action have been identified. Repurposing drugs such as arbidol, hydroxychloroquine, chloroquine, lopinavir, favipiravir, remdesivir, hexamethylene amiloride, and dexamethasone, tocilizumab, interferon-β, neutralizing antibodies exhibit in vitro anti-coronaviral properties by inhibiting multiple processes in the virus life cycle. Various research groups are involved in drug trials and vaccine development. Plant-based anti-viral compounds such as baicalin, calanolides, curcumin, oxymatrine, matrine, and resveratrol exhibit different modes of action against a wide range of positive/negative sense-RNA/DNA virus, and future researches need to be conducted to ascertain their role, use in managing SARS-CoV-2. Thus, this article is an attempt to review the current understanding of COVID-19 acute respiratory disease and summarize its clinical features with their prospective control and various aspects of the therapeutic approach.
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Affiliation(s)
- Pankaj Kumar Rai
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Zeba Mueed
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Abhiroop Chowdhury
- School of Environment & Sustainability, O.P. Jindal Global University, Sonipat, Haryana, India
| | - Ravi Deval
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Dinesh Kumar
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Mohammad A Kamal
- West China School of Nursing / Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan. China
| | - Yogeshwar Singh Negi
- Department of Biosciences, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
| | - Shubhra Pareek
- Department of Chemistry, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
| | - Nitesh Kumar Poddar
- Department of Biosciences, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
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Chakravarti R, Singh R, Ghosh A, Dey D, Sharma P, Velayutham R, Roy S, Ghosh D. A review on potential of natural products in the management of COVID-19. RSC Adv 2021; 11:16711-16735. [PMID: 35479175 PMCID: PMC9031656 DOI: 10.1039/d1ra00644d] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 03/22/2021] [Indexed: 12/11/2022] Open
Abstract
At the end of 2019, a life threatening viral infection (COVID-19) caused by a novel coronavirus, Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) was reported. This virus has spread worldwide in a short duration and forced the world to face unprecedented life and economic loss. To date, there are no known specific drugs to combat this virus and the process for new drug development is lengthy. Most promising candidates, which emerged as potential leads, were abandoned in the later phases of clinical trials. Repurposing of already approved drugs for other therapeutic applications can be done only after extensive testing for safety and efficacy. With no definite therapeutics in the horizon, natural products are in extensive use arbitrarily as anti-viral agents and immune boosters. For ages it has been known that most natural products possess potent anti-viral activity and it is no different for SARS-CoV-2. It has been shown that natural products display inhibitory effects on MERS-CoV and SARS-CoV infections. In silico studies have shown that various natural products have strong binding affinity for and inhibitory action on the non-structural proteins of the virus, namely PLPRO, MPRO, and RdRp, and structural proteins such as spike (S) protein. Since the virus utilizes the transmembrane ACE2 receptor of the host cell, it also proves to be a valid target for drug development. In this review promising targets for drug development against SARS-CoV-2 and anti-viral activities of some of the known natural products are discussed. In this review promising targets for drug development against SARS-CoV-2 and anti-viral activities of some of the known natural products (including plant secondary metabolites) are discussed.![]()
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Affiliation(s)
- Rudra Chakravarti
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
| | - Rajveer Singh
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
| | - Arijit Ghosh
- Department of Chemistry, University of Calcutta Kolkata India
| | - Dhritiman Dey
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
| | - Priyanka Sharma
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
| | - Ravichandiran Velayutham
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
| | - Syamal Roy
- CSIR-Indian Institute of Chemical Biology Jadavpur Kolkata India
| | - Dipanjan Ghosh
- Department of Natural Products, National Institute of Pharmaceutical Education and Research-Kolkata India
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López P, Tirado G, Arias A, Sánchez R, Rodríguez-López ER, Rivera-Amill V. Short Communication: Integrase Strand Transfer Inhibitors Drug Resistance Mutations in Puerto Rico HIV-Positive Individuals. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18052719. [PMID: 33800269 PMCID: PMC7967446 DOI: 10.3390/ijerph18052719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 11/16/2022]
Abstract
The HIV-1 integrase viral protein is responsible for incorporating the viral DNA into the genomic DNA. The inhibition of viral integration into host cell DNA is part of recent therapeutic procedures. Combination therapy with protease and reverse transcriptase inhibitors has demonstrated good synergistic results in reducing viral replication. The purpose of this study is to assess the occurrence of integrase drug resistance mutations from the period comprising 2013 through 2018 in Puerto Rico (PR). We analyzed 131 nucleotide sequences available in our HIV genotyping database, and we performed drug resistance mutation analyses using the Stanford HIV Drug Resistance Database. Twenty-one sequences (16.03%) harbored major or resistance-associated mutations. We identified the Q148HKR, G140S, Y143R, N155H, S147G, and E138EA major drug resistance mutations and the D232DN, T97TA, E157Q, G163GART accessory mutations. We detected high-level drug resistance to Elvitegravir and Raltegravir (76.19% and 85.71%). Moreover, we identified sequences harboring drug resistance mutations that could provide resistance to Dolutegravir. The transmission of strains with integrase antiretroviral resistance has been previously documented in treatment naïve patients. Given the increase of patients treated with integrase inhibitors, surveillance of drug resistance mutations is an essential aspect of PR's clinical management of HIV infection.
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Ali SI, Sheikh WM, Rather MA, Venkatesalu V, Muzamil Bashir S, Nabi SU. Medicinal plants: Treasure for antiviral drug discovery. Phytother Res 2021; 35:3447-3483. [PMID: 33590931 PMCID: PMC8013762 DOI: 10.1002/ptr.7039] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 01/04/2021] [Accepted: 01/12/2021] [Indexed: 12/11/2022]
Abstract
The pandemic of viral diseases like novel coronavirus (2019-nCoV) prompted the scientific world to examine antiviral bioactive compounds rather than nucleic acid analogous, protease inhibitors, or other toxic synthetic molecules. The emerging viral infections significantly associated with 2019-nCoV have challenged humanity's survival. Further, there is a constant emergence of new resistant viral strains that demand novel antiviral agents with fewer side effects and cell toxicity. Despite significant progress made in immunization and regenerative medicine, numerous viruses still lack prophylactic vaccines and specific antiviral treatments that are so often influenced by the generation of viral escape mutants. Of importance, medicinal herbs offer a wide variety of therapeutic antiviral chemotypes that can inhibit viral replication by preventing viral adsorption, adhering to cell receptors, inhibiting virus penetration in the host cell, and competing for pathways of activation of intracellular signals. The present review will comprehensively summarize the promising antiviral activities of medicinal plants and their bioactive molecules. Furthermore, it will elucidate their mechanism of action and possible implications in the treatment/prevention of viral diseases even when their mechanism of action is not fully understood, which could serve as the base for the future development of novel or complementary antiviral treatments.
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Affiliation(s)
- Sofi Imtiyaz Ali
- Biochemistry & Molecular Biology Lab, Division of veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India
| | - Wajid Mohammad Sheikh
- Biochemistry & Molecular Biology Lab, Division of veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India
| | - Muzafar Ahmad Rather
- Biochemistry & Molecular Biology Lab, Division of veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India
| | | | - Showkeen Muzamil Bashir
- Biochemistry & Molecular Biology Lab, Division of veterinary Biochemistry, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India
| | - Showkat Ul Nabi
- Large Animal Diagnostic Laboratory, Department of Clinical Veterinary Medicine, Ethics & Jurisprudence, Faculty of Veterinary Sciences and Animal Husbandry, SKUAST-K, Srinagar, India
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Jarchi M, Bokharaei-Salim F, Esghaei M, Kiani SJ, Jahanbakhsh F, Monavari SH, Ataei-Pirkooh A, Marjani A, Keyvani H. The Frequency of HIV-1 Infection in Iranian Children and Determination of the Transmitted Drug Resistance in Treatment-Naïve Children. Curr HIV Res 2021; 17:397-407. [PMID: 31702525 DOI: 10.2174/1570162x17666191106111211] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/23/2019] [Accepted: 10/31/2019] [Indexed: 12/23/2022]
Abstract
BACKGROUND The advent of resistance-associated mutations in HIV-1 is a barrier to the success of the ARTs. OBJECTIVE In this study, the abundance of HIV-1 infection in Iranian children, and also detection of the TDR in naïve HIV-1 infected pediatric (under 12 years old) were evaluated. MATERIALS From June 2014 to January 2019, a total of 544 consecutive treatment-naïve HIV-1- infected individuals enrolled in this study. After RNA extraction, amplification, and sequencing of the HIV-1 pol gene, the DRM and phylogenetic analysis were successfully performed on the plasma specimens of the ART-naïve HIV-1-infected-children under 12 years old. The DRMs were recognized using the Stanford HIV Drug Resistance Database. RESULTS Out of the 544 evaluated treatment-naïve HIV-1-infected individuals, 15 (2.8%) cases were children under 12 years old. The phylogenetic analyses of the amplified region of pol gene indicated that all of the 15 HIV-1-infected pediatric patients were infected by CRF35_AD, and a total of 13.3% (2/15) of these children were infected with HIV-1 variants with SDRMs (one child harbored two related SDRMs [D67N, V179F], and another child had three related SDRMs [M184V, T215F, and K103N]), according to the last algorithm of the WHO. No PIs-related SDRMs were observed in HIV-1-infected children. CONCLUSION The current study demonstrated that a total of 13.3% of treatment-naïve HIV-1-infected Iranian pediatrics (under 12 years old) were infected with HIV-1 variants with SDRMs. Therefore, it seems that screening to recognize resistance-associated mutations before the initiation of ARTs among Iranian children is essential for favorable medication efficacy and dependable prognosis.
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Affiliation(s)
- Maryam Jarchi
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farah Bokharaei-Salim
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Esghaei
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Seyed Jalal Kiani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | | | - Angila Ataei-Pirkooh
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Arezoo Marjani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Keyvani
- Department of Virology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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Mikasi SG, Isaacs D, Ikomey GM, Shimba H, Cloete R, Jacobs GB. Short Communication: HIV-1 Drug Resistance Mutation Analyses of Cameroon-Derived Integrase Sequences. AIDS Res Hum Retroviruses 2021; 37:54-56. [PMID: 32640829 DOI: 10.1089/aid.2020.0022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
HIV-1 integrase (IN) is a primary target for combination antiretroviral therapy. Only a limited number of studies report on the emergence of resistance-associated mutations (RAMs) in Cameroon. We observed that 1.4% of sequence from treatment-naive patients had IN strand transfer inhibitor (INSTI) RAMs. These mutations confer resistance to raltegravir and elvitegravir. We also observed that 10.1% of the sequences have INSTI accessory RAMs. HIV-1 CRF02_AG was the predominant subtype (44.7%) in this study analyses. The occurrence of INSTI RAMs among the sequences at baseline needs to be monitored carefully.
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Affiliation(s)
- Sello Given Mikasi
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Darren Isaacs
- South African Medical Research Council Bioinformatics Unit, South African National Bioinformatics Institute, University of the Western Cape, Cape Town, South Africa
| | - George Mondinde Ikomey
- Centre for the Study and Control of Communicable Diseases, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaounde, Cameroon
| | - Henerico Shimba
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Bugando Medical Centre, Mwanza, United Republic of Tanzania
| | - Ruben Cloete
- Centre for the Study and Control of Communicable Diseases, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaounde, Cameroon
| | - Graeme Brendon Jacobs
- Division of Medical Virology, Department of Pathology, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Ferrer P, Rodriguez C, Sciaraffia A, Tordecilla R, Ramos V, Durán M, Beltrán C, Afani A. HIV-1 resistance patterns to integrase inhibitors in Chilean patients with virological failure on raltegravir-containing regimens. J Virus Erad 2020; 6:100002. [PMID: 33251020 PMCID: PMC7646669 DOI: 10.1016/j.jve.2020.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 11/17/2022] Open
Abstract
In this viewpoint we would like to describe our results in terms of resistance pattern in Chilean patients with virological failure (VF) on raltegravir (RAL)-containing-regimens and highlight the need for the concomitant availability of genotypic resistance testing to integrase strand transfer inhibitors (INSTIs) introduction in antiretroviral regimens, particularly in countries in South America. Indeed we found in our study the presence of two or more primary mutations in some of the participants which is associated with cross-resistance to all INSTIs. By using timely genotyping, we could optimally manage these patients, early after detection of VF.
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Affiliation(s)
- Pablo Ferrer
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Consuelo Rodriguez
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Alicia Sciaraffia
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Rocío Tordecilla
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Veronica Ramos
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Magdalena Durán
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Carlos Beltrán
- Grupo SIDA CHILE, Hospital Ramón Barros Luco y Universidad de Santiago de Chile, Chile
| | - Alejandro Afani
- Laboratorio de Medicina Molecular, Hospital Clínico Universidad de Chile, Santiago, Chile
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12
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Yang LL, Li Q, Zhou LB, Chen SQ. Meta-analysis and systematic review of the efficacy and resistance for human immunodeficiency virus type 1 integrase strand transfer inhibitors. Int J Antimicrob Agents 2019; 54:547-555. [PMID: 31398480 DOI: 10.1016/j.ijantimicag.2019.08.008] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 07/16/2019] [Accepted: 08/01/2019] [Indexed: 11/22/2022]
Abstract
Integrase strand transfer inhibitors (INSTIs) are the most recent class of antiretroviral drugs with potent and durable antiviral activity used to treat human immunodeficiency virus type 1 (HIV-1) infection. However, development of drug resistance increases the risk of treatment failure, disease progression and mortality. A better understanding of drug efficacy and resistance against INSTIs is crucial for their efficient use and the development of new antiretrovirals. A meta-analysis of studies reporting efficacy and resistance data on INSTI use in HIV-infected patients was performed. Odds ratios (ORs) of efficacy outcome data favouring INSTI use in different clinical settings demonstrated that INSTIs have higher efficacy compared with drugs of other classes. For combination antiretroviral therapy-naïve patients and virologically-suppressed patients who switched to INSTI-based therapy, the OR was 1.484 (95% CI 1.229-1.790) and 1.341 (95% CI 0.913-1.971), respectively. ORs of resistance data indicated decreased treatment-emergent resistance development to dolutegravir (DTG) upon virological failure than to non-INSTIs (OR = 0.081, 95% CI 0.004-1.849), whereas the opposite was observed for raltegravir (RAL) (OR = 3.137, 95% CI 1.827-5.385) and elvitegravir (EVG) (OR = 1.886, 95% CI 0.569-6.252). Pooled analysis of resistance data indicated that development of resistance to DTG and bictegravir was rare, whereas EVG and RAL had low genetic barriers to resistance and the intensive cross-resistance between them limits INSTI efficiency. Efficient means of monitoring the emergence of resistance to INSTIs and the development of drugs with high genetic barriers are clear paths for future research.
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Affiliation(s)
- Li-Li Yang
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou 310058, China
| | - Qi Li
- Department of Nephrology, Central Hospital of Zibo, Zibo 255020, China
| | - Li-Bo Zhou
- Department of Molecular and Medical Pharmacology, Molecular Biology Institute and AIDS Institute, School of Medicine, University of California, Los Angeles, CA 90095, USA
| | - Shu-Qing Chen
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, No. 866 Yuhangtang Road, Hangzhou 310058, China.
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13
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Nguyen T, Fofana DB, Lê MP, Charpentier C, Peytavin G, Wirden M, Lambert-Niclot S, Desire N, Grude M, Morand-Joubert L, Flandre P, Katlama C, Descamps D, Calvez V, Todesco E, Marcelin AG. Prevalence and clinical impact of minority resistant variants in patients failing an integrase inhibitor-based regimen by ultra-deep sequencing. J Antimicrob Chemother 2019; 73:2485-2492. [PMID: 29873733 DOI: 10.1093/jac/dky198] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 04/27/2018] [Indexed: 12/20/2022] Open
Abstract
Background Integrase strand transfer inhibitors (INSTIs) are recommended by international guidelines as first-line therapy in antiretroviral-naive and -experienced HIV-1-infected patients. Objectives This study aimed at evaluating the prevalence at failure of INSTI-resistant variants and the impact of baseline minority resistant variants (MiRVs) on the virological response to an INSTI-based regimen. Methods Samples at failure of 134 patients failing a raltegravir-containing (n = 65), an elvitegravir-containing (n = 20) or a dolutegravir-containing (n = 49) regimen were sequenced by Sanger sequencing and ultra-deep sequencing (UDS). Baseline samples of patients with virological failure (VF) (n = 34) and of those with virological success (VS) (n = 31) under INSTI treatment were sequenced by UDS. Data were analysed using the SmartGene platform, and resistance was interpreted according to the ANRS algorithm version 27. Results At failure, the prevalence of at least one INSTI-resistant variant was 39.6% by Sanger sequencing and 57.5% by UDS, changing the interpretation of resistance in 17/134 (13%) patients. Among 53 patients harbouring at least one resistance mutation detected by both techniques, the most dominant INSTI resistance mutations were N155H (45%), Q148H/K/R (23%), T97A (19%) and Y143C (11%). There was no difference in prevalence of baseline MiRVs between patients with VF and those with VS. MiRVs found at baseline in patients with VF were not detected at failure either in majority or minority mutations. Conclusions UDS is more sensitive than Sanger sequencing at detecting INSTI MiRVs at treatment failure. The presence of MiRVs at failure could be important to the decision to switch to other INSTIs. However, there was no association between the presence of baseline MiRVs and the response to INSTI-based therapies in our study.
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Affiliation(s)
- T Nguyen
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
| | - D B Fofana
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Saint-Antoine, Laboratoire de virologie, F-75012 Paris, France
| | - M P Lê
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité, AP-HP, Département de Pharmaco-Toxicologie, Hôpital Bichat-Claude Bernard, Paris, France
| | - C Charpentier
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité, AP-HP, Laboratoire de Virologie, Hôpital Bichat-Claude Bernard, Paris, France
| | - G Peytavin
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité, AP-HP, Département de Pharmaco-Toxicologie, Hôpital Bichat-Claude Bernard, Paris, France
| | - M Wirden
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
| | - S Lambert-Niclot
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Saint-Antoine, Laboratoire de virologie, F-75012 Paris, France
| | - N Desire
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
| | - M Grude
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), F-75013 Paris, France
| | - L Morand-Joubert
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Saint-Antoine, Laboratoire de virologie, F-75012 Paris, France
| | - P Flandre
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), F-75013 Paris, France
| | - C Katlama
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Service de maladies infectieuses, F-75013 Paris, France
| | - D Descamps
- IAME, UMR 1137, INSERM, Université Paris Diderot, Sorbonne Paris Cité, AP-HP, Laboratoire de Virologie, Hôpital Bichat-Claude Bernard, Paris, France
| | - V Calvez
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
| | - E Todesco
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
| | - A G Marcelin
- Sorbonne Université, INSERM, Institut Pierre Louis d'Epidémiologie et de Santé Publique (iPLESP), AP-HP, Hôpital Pitié-Salpêtrière, Laboratoire de virologie, F-75013 Paris, France
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14
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Margot NA, Ram RR, White KL, Abram ME, Callebaut C. Antiviral activity of HIV-1 integrase strand-transfer inhibitors against mutants with integrase resistance-associated mutations and their frequency in treatment-naïve individuals. J Med Virol 2019; 91:2188-2194. [PMID: 31389026 DOI: 10.1002/jmv.25564] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 07/31/2019] [Indexed: 11/08/2022]
Abstract
The development of resistance to human immunodeficiency virus 1 (HIV-1) integrase strand-transfer inhibitors (INSTI) has been documented; however, knowledge of the impact of pre-existing integrase (IN) mutations on INSTI resistance (INSTI-R) is still evolving. The frequency of HIV-1 IN mutations in 2177 treatment-naïve subjects was investigated, along with the INSTI susceptibility of site-directed mutant viruses containing major and minor INSTI-R mutations. Total 6 of 39 minor INSTI-R mutations (M50I, S119P/G/T/R, and E157Q) were found in >1% of IN-treatment-naïve subjects with no impact on INSTI susceptibility. When each combined with major INSTI-R mutation, M50I, S119P, and E157Q led to decreased susceptibility to elvitegravir but remained sensitive to dolutegravir and bictegravir.
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Affiliation(s)
- Nicolas A Margot
- Gilead Sciences, Inc., Clinical virology, Foster City, California
| | - Renee R Ram
- Gilead Sciences, Inc., Clinical virology, Foster City, California
| | - Kirsten L White
- Gilead Sciences, Inc., Clinical virology, Foster City, California
| | - Michael E Abram
- Gilead Sciences, Inc., Clinical virology, Foster City, California
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15
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Cecchini DM, Castillo S, Copertari G, Lacal V, Rodriguez CG, Cassetti I. Resistance to HIV integrase strand transfer inhibitors in Argentina: first interim survey. REVISTA ESPANOLA DE QUIMIOTERAPIA : PUBLICACION OFICIAL DE LA SOCIEDAD ESPANOLA DE QUIMIOTERAPIA 2019; 32:263-267. [PMID: 31037930 PMCID: PMC6609941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
OBJECTIVE No data on resistance to HIV integrase strand transfer inhibitors (InSTIs) in Argentina are available as access to these drugs and to integrase genotypic resistance test is limited. We aimed to evaluate the clinical profile of patients who underwent an integrase genotypic resistance test, prevalence of InSTI resistance mutations and predicted efficacy of raltegravir, elvitegravir and dolutegravir in our country. METHODS Retrospective multicentric pilot survey from January 2011 to November 2017 of InSTI-failing patients assisted at two private and one public healthcare institutions located in Buenos Aires city, Argentina. RESULTS Sixty seven patients were included. Patients had a median of 5 (4-7) prior treatments. All patients had InSTI-containing regimens (median exposure of 22.5 months); 94% were under raltegravir therapy and 71.9% had InSTI-resistance mutations. Predominant major mutations were N155H (35.1%), Q148H/R (15.8%) and G140A/S (14%). Considering Stanford HIVdb program, extremely low and identical activity of raltegravir and elvitegravir was described while dolutegravir remained either partially or fully active in 97.7% of patients. CONCLUSIONS Integrase resistance test was prescribed almost exclusively in heavily pretrated raltegravir-exposed patients. The three main mutational pathways were described, with a predominance of N155H. Despite almost null susceptibility and extensive cross resistance was shown among raltegravir and elvitegravir, dolutegravir remains active in the majority of patients.
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Affiliation(s)
- Diego M. Cecchini
- Helios Salud, Buenos Aires, Argentina.,Hospital Cosme Argerich, Buenos Aires, Argentina.,Correspondence: Diego M. Cecchini, Helios Salud SA. Peru 1511/15, Buenos Aires, C1141ACG, Argentina. Phone: +5411 4363 7400. E-mail:
| | - Sonia Castillo
- Laboratorio Dr. Stamboulian, Sección Biología Molecular, Buenos Aires, Argentina
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16
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Rusconi S, Adorni F, Tau P, Borghi V, Pecorari M, Maserati R, Francisci D, Monno L, Punzi G, Meraviglia P, Paolucci S, Di Biagio A, Bruzzone B, Mancon A, Micheli V, Zazzi M. Dolutegravir (DTG)-containing regimens after receiving raltegravir (RAL) or elvitegravir (EVG): Durability and virological response in a large Italian HIV drug resistance network (ARCA). J Clin Virol 2018; 105:112-117. [PMID: 29957545 DOI: 10.1016/j.jcv.2018.06.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Revised: 05/17/2018] [Accepted: 06/20/2018] [Indexed: 02/05/2023]
Abstract
BACKGROUND Dolutegravir (DTG) is a next-generation HIV integrase inhibitor (INI) with an increased genetic barrier to resistance with respect to raltegravir (RAL) or elvitegravir (EVG). Few data are available on the durability of DTG-containing regimens. OBJECTIVES We aimed at investigating the duration of the DTG-containing regimen, the occurrence of an HIV-1 RNA blip, and factors associated with DTG virological response. STUDY DESIGN From the Antiviral Response Cohort Analysis database, we selected 89 HIV-1-positive four-class-experienced subjects who started DTG after receiving RAL or EVG. Factors associated with durability and virological response were analysed by logistic regression. RESULTS After a median duration of 18.8 [0.4-76.2] months, 79/89 (88.8%) subjects were still on DTG. All subjects remaining on DTG at the end of follow-up had undetectable HIV-1 RNA, compared to 5/10 subjects who discontinued DTG. DTG discontinuation was less frequent in patients who had experienced ≥10 regimens (HR 0.11, p = 0.040). The probability of having an HIV-1 RNA positive value at the last follow-up significantly increased in patients with non-B HIV-1 subtype (HR 5.77, p < .001) and significantly decreased in patients with CD4 nadir >200/μL (HR 0.29, p = 0.038), with more than 10 previous regimens (HR 0.27, p = 0.040), and who harbored virus with IN mutations (HR 0.12, p = 0.023) at DTG start. CONCLUSIONS After previous exposure to first-generation INIs, treatment with DTG showed long durability and did not show virological rebound after virological suppression. Subjects infected with a non-B HIV-1 subtype had a greater risk of having detectable HIV-1 RNA at the last observation.
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Affiliation(s)
- S Rusconi
- Divisione Malattie Infettive, DIBIC Luigi Sacco, Università degli Studi di Milano, Italy.
| | | | - P Tau
- Divisione Malattie Infettive, DIBIC Luigi Sacco, Università degli Studi di Milano, Italy
| | - V Borghi
- Clinica Malattie Infettive, Modena, Italy
| | | | - R Maserati
- Ambulatorio Clinica Malattie Infettive, Fondazione Policlinico San Matteo, Pavia, Italy
| | | | - L Monno
- Clinica Malattie Infettive, Bari, Italy
| | - G Punzi
- Laboratorio di Virologia, Bari, Italy
| | - P Meraviglia
- Prima divisione di Malattie Infettive, Ospedale Luigi Sacco, Milano, Italy
| | - S Paolucci
- Laboratorio di Virologia, Fondazione Policlinico San Matteo, Pavia, Italy
| | - A Di Biagio
- Clinica Malattie Infettive, Azienda Ospedaliera Universitaria San Martino, Genova, Italy
| | - B Bruzzone
- Laboratorio di Igiene, Azienda Ospedaliera Universitaria San Martino, Genova, Italy
| | - A Mancon
- Laboratorio Microbiologia Clinica - Virologia - Bioterrorismo, Ospedale Luigi Sacco, ASST FBF-Sacco, Milano, Italy
| | - V Micheli
- Laboratorio Microbiologia Clinica - Virologia - Bioterrorismo, Ospedale Luigi Sacco, ASST FBF-Sacco, Milano, Italy
| | - M Zazzi
- Dipartimento di Biotecnologie Mediche, Università degli Studi di Siena, Italy
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17
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Marshall BDL, Goedel WC, King MRF, Singleton A, Durham DP, Chan PA, Townsend JP, Galvani AP. Potential effectiveness of long-acting injectable pre-exposure prophylaxis for HIV prevention in men who have sex with men: a modelling study. Lancet HIV 2018; 5:e498-e505. [PMID: 29908917 DOI: 10.1016/s2352-3018(18)30097-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2017] [Revised: 04/11/2018] [Accepted: 05/02/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Oral pre-exposure prophylaxis (PrEP) prevents HIV infection in men who have sex with men (MSM); however, adherence is an ongoing concern. Long-acting injectable PrEP is being tested in phase 3 trials and could address challenges associated with adherence. We examined the potential effectiveness of long-acting injectable PrEP compared with oral PrEP in MSM. METHODS We used an agent-based model to simulate HIV transmission in a dynamic network of 11 245 MSM in Atlanta, GA, USA. We used raw data from studies in macaque models and pharmacokinetic data from safety trials to estimate the time-varying efficacy of long-acting injectable PrEP. The effect of long-acting injectable PrEP on the cumulative number of new HIV infections over 10 years (2015-24) was compared with no PrEP and daily oral PrEP across a range of coverage levels. Sensitivity analyses were done with varying maximum efficacy and drug half-life values. FINDINGS In the absence of PrEP, the model predicted 2374 new HIV infections (95% simulation interval [SI] 2345-2412) between 2015 and 2024. The cumulative number of new HIV infections was reduced in all scenarios in which MSM received long-acting injectable PrEP compared with oral PrEP. At a coverage level of 35%, compared with no PrEP, long-acting injectable PrEP led to a 44% reduction in new HIV infections (1044 new infections averted [95% SI 1018-1077]) versus 33% (792 infections averted [763-821]) for oral PrEP. The relative benefit of long-acting injectable PrEP was sensitive to the assumed efficacy of injections received every 8 weeks, discontinuation rates, and terminal drug half-life. INTERPRETATION Long-acting injectable PrEP has the potential to produce larger reductions in HIV transmission in MSM than oral PrEP. However, the real-world, population-level impact of this approach will depend on uptake of this prevention method and its effectiveness, as well as retention of patients in clinical care. FUNDING National Institute on Drug Abuse and National Institute of Mental Health.
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Affiliation(s)
- Brandon D L Marshall
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI, USA.
| | - William C Goedel
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI, USA
| | - Maximilian R F King
- Department of Epidemiology, School of Public Health, Brown University, Providence, RI, USA
| | - Alyson Singleton
- Department of Applied Mathematics, Brown University, Providence, RI, USA
| | - David P Durham
- Center for Infectious Disease Modeling and Analysis, School of Public Health, Yale University, New Haven, CT, USA
| | - Philip A Chan
- Department of Medicine, Warren Alpert Medical School, Brown University, Providence, RI, USA
| | - Jeffrey P Townsend
- Department of Biostatistics, School of Public Health, Yale University, New Haven, CT, USA; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA
| | - Alison P Galvani
- Center for Infectious Disease Modeling and Analysis, School of Public Health, Yale University, New Haven, CT, USA; Department of Ecology and Evolutionary Biology, Yale University, New Haven, CT, USA; Program in Computational Biology and Bioinformatics, Yale University, New Haven, CT, USA
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18
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de Miguel R, Montejano R, Stella-Ascariz N, Arribas JR. A safety evaluation of raltegravir for the treatment of HIV. Expert Opin Drug Saf 2017; 17:217-223. [PMID: 29199485 DOI: 10.1080/14740338.2018.1411903] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Raltegravir (RAL) was the first commercialized agent from a new drug class with an innovative target, the integrase. Since its introduction in clinical practice RAL has become widely used for the treatment of HIV-1 infected patients. A decade after its approval, this article reviews key evidence from RAL with a special interest on safety outcomes. Areas covered: Pharmacologic, safety and efficacy data of RAL from clinical trials and post-commercialization published reports are hereby summarized after a literature review including PubMed search, relating proceedings and abstracts from relevant international HIV conferences, assessment reports from European and United States regulatory agencies and treatment guidelines (World Health Organization, United States Department of Health and Human Services and European AIDS Clinical Society), up to October 2017. Most frequent search terms were 'raltegravir', 'safety', 'adverse events', 'efficacy' and 'integrase-inhibitors'. Expert opinion: Despite the arrival of new integrase strand transfer inhibitors (INSTIs) with advantages in terms of dosing convenience (elvitegravir, ELV) and higher genetic barrier (dolutegravir, DTG), RAL has stood the test of time and its overall favourable safety profile, without significant appearance of unexpected adverse events, vouch for its relevance in the antiretroviral armamentarium.
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Affiliation(s)
- Rosa de Miguel
- a HIV Unit, Internal Medicine Service , Hospital Universitario La Paz-IdiPAZ , Madrid , Spain
| | - Rocio Montejano
- a HIV Unit, Internal Medicine Service , Hospital Universitario La Paz-IdiPAZ , Madrid , Spain
| | - Natalia Stella-Ascariz
- a HIV Unit, Internal Medicine Service , Hospital Universitario La Paz-IdiPAZ , Madrid , Spain
| | - Jose R Arribas
- a HIV Unit, Internal Medicine Service , Hospital Universitario La Paz-IdiPAZ , Madrid , Spain
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19
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Stefic K, Salmona M, Capitao M, Splittgerber M, Maakaroun-Vermesse Z, Néré ML, Bernard L, Chaix ML, Barin F, Delaugerre C. Unravelling the dynamics of selection of multiresistant variants to integrase inhibitors in an HIV-1-infected child using ultra-deep sequencing. J Antimicrob Chemother 2017; 72:850-854. [PMID: 27999055 DOI: 10.1093/jac/dkw507] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Accepted: 10/26/2016] [Indexed: 12/20/2022] Open
Abstract
Background Ultra-deep sequencing (UDS) allows detection of minority resistant variants (MRVs) with a threshold of 1% and could be useful to identify variants harbouring single or multiple drug-resistance mutations (DRMs). Objectives We analysed the integrase gene region longitudinally using UDS in an HIV-1-infected child rapidly failing a raltegravir-based regimen. Methods Longitudinal plasma samples at baseline and weeks 4, 8, 13, 17 and 39 were obtained, as well as the mother's baseline plasma sample. Sanger sequencing and UDS were performed on the integrase gene using Roche 454 GS-Junior. A bioinformatic workflow was developed to identify the major DRMs, accessory mutations and the linkage between mutations. Results In Sanger sequencing and UDS, no MRV in the integrase gene was detected at baseline in either the mother or the child. The major DRM N155H conferring resistance to raltegravir and elvitegravir was detected in 4% of the sequences by week 4 using UDS, whereas it was not detected by Sanger sequencing. The double mutant E92Q + N155H, conferring resistance to the entire integrase inhibitor class, including dolutegravir, emerged at week 8 (16%) and became rapidly dominant (57% by week 13). At the last timepoint under raltegravir (week 17), Y143R emerged, leading to different resistance mutation patterns: single mutants N155H (47%) and Y143R (24%) and double mutants E92Q + N155H (13%), Y143R + N155H (2%) and E92Q + Y143R (2%). The polymorphic substitution M50I was preferentially selected on resistant variants, especially on E92Q + N155H variants. Conclusions This case study illustrates the usefulness of UDS in detecting early MRVs and determining the dynamics of selected HIV-1 variants in longitudinal analysis.
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Affiliation(s)
- Karl Stefic
- Inserm U966, Université François Rabelais, Tours, France.,Laboratoire de Bactériologie-Virologie & Centre National de Référence du VIH, CHU Bretonneau, Tours, France
| | - Maud Salmona
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
| | - Marisa Capitao
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
| | - Marion Splittgerber
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
| | | | - Marie-Laure Néré
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
| | - Louis Bernard
- CHU Bretonneau, Médecine Interne et Maladies Infectieuses, Tours, France
| | - Marie-Laure Chaix
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
| | - Francis Barin
- Inserm U966, Université François Rabelais, Tours, France.,Laboratoire de Bactériologie-Virologie & Centre National de Référence du VIH, CHU Bretonneau, Tours, France
| | - Constance Delaugerre
- Inserm U941, Université Paris Diderot, Paris, France.,Laboratoire de Virologie, Hôpital Saint-Louis, APHP, Paris, France
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20
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Zhao XZ, Smith SJ, Maskell DP, Métifiot M, Pye VE, Fesen K, Marchand C, Pommier Y, Cherepanov P, Hughes SH, Burke TR. Structure-Guided Optimization of HIV Integrase Strand Transfer Inhibitors. J Med Chem 2017; 60:7315-7332. [PMID: 28737946 PMCID: PMC5601359 DOI: 10.1021/acs.jmedchem.7b00596] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Indexed: 12/16/2022]
Abstract
Integrase mutations can reduce the effectiveness of the first-generation FDA-approved integrase strand transfer inhibitors (INSTIs), raltegravir (RAL) and elvitegravir (EVG). The second-generation agent, dolutegravir (DTG), has enjoyed considerable clinical success; however, resistance-causing mutations that diminish the efficacy of DTG have appeared. Our current findings support and extend the substrate envelope concept that broadly effective INSTIs can be designed by filling the envelope defined by the DNA substrates. Previously, we explored 1-hydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamides as an INSTI scaffold, making a limited set of derivatives, and concluded that broadly effective INSTIs can be developed using this scaffold. Herein, we report an extended investigation of 6-substituents as well the first examples of 7-substituted analogues of this scaffold. While 7-substituents are not well-tolerated, we have identified novel substituents at the 6-position that are highly effective, with the best compound (6p) retaining better efficacy against a broad panel of known INSTI resistant mutants than any analogues we have previously described.
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Affiliation(s)
- Xue Zhi Zhao
- Chemical
Biology Laboratory and HIV Dynamics and Replication Program, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Frederick, Maryland 21702, United States
| | - Steven J. Smith
- Chemical
Biology Laboratory and HIV Dynamics and Replication Program, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Frederick, Maryland 21702, United States
| | - Daniel P. Maskell
- Chromatin
Structure and Mobile DNA, The Francis Crick
Institute, London NW1 1AT, United Kingdom
| | - Mathieu Métifiot
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Valerie E. Pye
- Chromatin
Structure and Mobile DNA, The Francis Crick
Institute, London NW1 1AT, United Kingdom
| | - Katherine Fesen
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Christophe Marchand
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Yves Pommier
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Peter Cherepanov
- Chromatin
Structure and Mobile DNA, The Francis Crick
Institute, London NW1 1AT, United Kingdom
- Imperial
College London, St-Mary’s
Campus, Norfolk Place, London W2 1PG, United Kingdom
| | - Stephen H. Hughes
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Terrence R. Burke
- Chemical
Biology Laboratory and HIV Dynamics and Replication Program, Center
for Cancer Research, National Cancer Institute,
National Institutes of Health, Frederick, Maryland 21702, United States
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21
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Chen I, Zhang Y, Cummings V, Cloherty GA, Connor M, Beauchamp G, Griffith S, Rose S, Gallant J, Scott HM, Shoptaw S, del Rio C, Kuo I, Mannheimer S, Tieu HV, Hurt CB, Fields SD, Wheeler DP, Mayer KH, Koblin BA, Eshleman SH. Analysis of HIV Integrase Resistance in Black Men Who Have Sex with Men in the United States. AIDS Res Hum Retroviruses 2017; 33:745-748. [PMID: 28384058 PMCID: PMC5512295 DOI: 10.1089/aid.2017.0005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Resistance to reverse transcriptase and protease inhibitors was frequently detected in HIV from black men who have sex with men (MSM) enrolled in the HIV prevention trials network (HPTN) 061 study. In this study, integrase strand transfer inhibitor (INSTI) resistance was analyzed in black MSM enrolled in HPTN 061 (134 infected at enrollment and 23 seroconverters) and a follow-up study, HPTN 073 (eight seroconverters). The ViroSeq HIV-1 Integrase Genotyping Kit (Abbott Molecular) was used for analysis. Major INSTI resistance mutations were not detected in any of the samples. HIV from 14 (8.4%) of the 165 men, including 4 (12.9%) of 31 seroconverters, had accessory or polymorphic INSTI-associated mutations. The most frequently detected mutation was E157Q. These findings are promising because INSTI-based regimens are now recommended for first-line antiretroviral treatment and because long-acting cabotegravir is being evaluated for pre-exposure prophylaxis.
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Affiliation(s)
- Iris Chen
- Bureau of Primary Health Care, Health Resources and Services Administration, Rockville, Maryland
| | - Yinfeng Zhang
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Vanessa Cummings
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gavin A. Cloherty
- Infectious Disease Research, Abbott Diagnostics, Abbott Park, Illinois
| | - Matthew Connor
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Geetha Beauchamp
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Center, Seattle, Washington
| | - Sam Griffith
- Science Facilitation Department, FHI 360, Durham, North Carolina
| | - Scott Rose
- Science Facilitation Department, FHI 360, Durham, North Carolina
| | | | - Hyman M. Scott
- Bridge HIV, San Francisco Department of Public Health, San Francisco, California
| | - Steven Shoptaw
- Department of Family Medicine, University of California Los Angeles, Los Angeles, California
| | - Carlos del Rio
- Department of Global Health, Emory University Rollins School of Public Health, Atlanta, Georgia
| | - Irene Kuo
- Department of Epidemiology and Biostatistics, The George Washington University, Washington, District of Columbia
| | - Sharon Mannheimer
- Department of Medicine, Harlem Hospital, Columbia University, Mailman School of Public Health, New York, New York
| | - Hong-Van Tieu
- Laboratory of Infectious Disease Prevention, Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York
| | - Christopher B. Hurt
- Institute for Global Health & Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina
| | - Sheldon D. Fields
- School of Health Professions, New York Institute of Technology, Old Westbury, New York
| | - Darrell P. Wheeler
- School of Social Welfare, University at Albany, State University of New York, Albany, New York
| | - Kenneth H. Mayer
- Fenway Health/Infectious Disease Division, The Fenway Institute, Beth Israel Deaconess Medical Center, Boston, Massachusetts
- Department of Medicine, Harvard Medical School, Boston, Massachusetts
| | - Beryl A. Koblin
- Laboratory of Infectious Disease Prevention, Lindsley F. Kimball Research Institute, New York Blood Center, New York, New York
| | - Susan H. Eshleman
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland
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22
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Microbial Natural Product Alternariol 5-O-Methyl Ether Inhibits HIV-1 Integration by Blocking Nuclear Import of the Pre-Integration Complex. Viruses 2017; 9:v9050105. [PMID: 28489061 PMCID: PMC5454418 DOI: 10.3390/v9050105] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/19/2017] [Accepted: 05/05/2017] [Indexed: 02/07/2023] Open
Abstract
While Highly Active Antiretroviral Therapy (HAART) has significantly decreased the mortality of human immunodeficiency virus (HIV)-infected patients, emerging drug resistance to approved HIV-1 integrase inhibitors highlights the need to develop new antivirals with novel mechanisms of action. In this study, we screened a library of microbial natural compounds from endophytic fungus Colletotrichum sp. and identified alternariol 5-O-methyl ether (AME) as a compound that inhibits HIV-1 pre-integration steps. Time-of addition analysis, quantitative real-time PCR, confocal microscopy, and WT viral replication assay were used to elucidate the mechanism. As opposed to the approved integrase inhibitor Raltegravir, AME reduced both the integrated viral DNA and the 2-long terminal repeat (2-LTR) circular DNA, which suggests that AME impairs the nuclear import of viral DNA. Further confocal microscopy studies showed that AME specifically blocks the nuclear import of HIV-1 integrase and pre-integration complex without any adverse effects on the importin α/β and importin β-mediated nuclear import pathway in general. Importantly, AME inhibited Raltegravir-resistant HIV-1 strains and exhibited a broad anti-HIV-1 activity in diverse cell lines. These data collectively demonstrate the potential of AME for further development into a new HIV inhibitor, and suggest the utility of viral DNA nuclear import as a target for anti-HIV drug discovery.
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23
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Maraolo AE. HIV-1 Integrase Inhibitors Resistance: Update of the Current Literature. CURRENT TREATMENT OPTIONS IN INFECTIOUS DISEASES 2017. [DOI: 10.1007/s40506-017-0113-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Antiviral Activity of Bictegravir (GS-9883), a Novel Potent HIV-1 Integrase Strand Transfer Inhibitor with an Improved Resistance Profile. Antimicrob Agents Chemother 2016; 60:7086-7097. [PMID: 27645238 PMCID: PMC5118987 DOI: 10.1128/aac.01474-16] [Citation(s) in RCA: 189] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 09/02/2016] [Indexed: 11/28/2022] Open
Abstract
Bictegravir (BIC; GS-9883), a novel, potent, once-daily, unboosted inhibitor of HIV-1 integrase (IN), specifically targets IN strand transfer activity (50% inhibitory concentration [IC50] of 7.5 ± 0.3 nM) and HIV-1 integration in cells. BIC exhibits potent and selective in vitro antiretroviral activity in both T-cell lines and primary human T lymphocytes, with 50% effective concentrations ranging from 1.5 to 2.4 nM and selectivity indices up to 8,700 relative to cytotoxicity. BIC exhibits synergistic in vitro antiviral effects in pairwise combinations with tenofovir alafenamide, emtricitabine, or darunavir and maintains potent antiviral activity against HIV-1 variants resistant to other classes of antiretrovirals. BIC displayed an in vitro resistance profile that was markedly improved compared to the integrase strand transfer inhibitors (INSTIs) raltegravir (RAL) and elvitegravir (EVG), and comparable to that of dolutegravir (DTG), against nine INSTI-resistant site-directed HIV-1 mutants. BIC displayed statistically improved antiviral activity relative to EVG, RAL, and DTG against a panel of 47 patient-derived HIV-1 isolates with high-level INSTI resistance; 13 of 47 tested isolates exhibited >2-fold lower resistance to BIC than DTG. In dose-escalation experiments conducted in vitro, BIC and DTG exhibited higher barriers to resistance than EVG, selecting for HIV-1 variants with reduced phenotypic susceptibility at days 71, 87, and 20, respectively. A recombinant virus with the BIC-selected M50I/R263K dual mutations in IN exhibited only 2.8-fold reduced susceptibility to BIC compared to wild-type virus. All BIC-selected variants exhibited low to intermediate levels of cross-resistance to RAL, DTG, and EVG (<8-fold) but remained susceptible to other classes of antiretrovirals. A high barrier to in vitro resistance emergence for both BIC and DTG was also observed in viral breakthrough studies in the presence of constant clinically relevant drug concentrations. The overall virologic profile of BIC supports its ongoing clinical investigation in combination with other antiretroviral agents for both treatment-naive and -experienced HIV-infected patients.
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25
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Heger E, Theis AA, Remmel K, Walter H, Pironti A, Knops E, Di Cristanziano V, Jensen B, Esser S, Kaiser R, Lübke N. Development of a phenotypic susceptibility assay for HIV-1 integrase inhibitors. J Virol Methods 2016; 238:29-37. [PMID: 27737783 DOI: 10.1016/j.jviromet.2016.10.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 09/02/2016] [Accepted: 10/07/2016] [Indexed: 10/20/2022]
Abstract
Phenotypic resistance analysis is an indispensable method for determination of HIV-1 resistance and cross-resistance to novel drug compounds. Since integrase inhibitors are essential components of recent antiretroviral combination therapies, phenotypic resistance data, in conjunction with the corresponding genotypes, are needed for improving rules-based and data-driven tools for resistance prediction, such as HIV-Grade and geno2pheno[integrase]. For generation of phenotypic resistance data to recent integrase inhibitors, a recombinant phenotypic integrase susceptibility assay was established. For validation purposes, the phenotypic resistance to raltegravir, elvitegravir and dolutegravir of nine subtype-B virus strains, isolated from integrase inhibitor-naïve and raltegravir-treated patients was determined. Genotypic resistance analysis identified four virus strains harbouring RAL resistance-associated mutations. Phenotypic resistance analysis was performed as follows. The HIV-1 integrase genes were cloned into a modified pNL4-3 vector and transfected into 293T cells for the generation of recombinant virus. The integrase-inhibitor susceptibility of the recombinant viruses was determined via an indicator cell line. While raltegravir resistance profiles presented a high cross-resistance to elvitegravir, dolutegravir maintained in-vitro activity in spite of the Y143R and N155H mutations, confirming the strong activity of dolutegravir against raltegravir-resistant viruses. Solely a Q148H+G140S variant presented reduced susceptibility to dolutegravir. In conclusion, our phenotypic susceptibility assay permits resistance analysis of the integrase gene of patient-derived viruses for integrase inhibitors by replication-competent recombinants. Thus, this assay can be used to analyze phenotypic drug resistance of integrase inhibitors in vitro. It provides the possibility to determine the impact of newly appearing mutational patterns to drug resistance of recent integrase inhibitors.
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Affiliation(s)
- Eva Heger
- Institute of Virology, University of Cologne, Germany
| | | | - Klaus Remmel
- Institute of Virology, University of Cologne, Germany
| | - Hauke Walter
- Medical Center for Infectiology, Berlin, and Medical Laboratory Stendal, Stendal, Germany
| | - Alejandro Pironti
- Department of Computational Biology and Applied Algorithmics, Max Planck Institute for Informatics, Saarbrücken, Germany
| | - Elena Knops
- Institute of Virology, University of Cologne, Germany
| | | | - Björn Jensen
- Department of Gastroenterology, Hepatology and Infectiology, Heinrich-Heine-University, University Hospital Düsseldorf, Germany
| | - Stefan Esser
- Department of Dermatology and Venerology, University Hospital Duisburg-Essen, Germany
| | - Rolf Kaiser
- Institute of Virology, University of Cologne, Germany
| | - Nadine Lübke
- Institute of Virology, University of Cologne, Germany.
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26
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Liu GN, Luo RH, Zhou Y, Zhang XJ, Li J, Yang LM, Zheng YT, Liu H. Synthesis and Anti-HIV-1 Activity Evaluation for Novel 3a,6a-Dihydro-1H-pyrrolo[3,4-c]pyrazole-4,6-dione Derivatives. Molecules 2016; 21:molecules21091198. [PMID: 27617994 PMCID: PMC6274355 DOI: 10.3390/molecules21091198] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2016] [Revised: 08/30/2016] [Accepted: 08/30/2016] [Indexed: 12/12/2022] Open
Abstract
The search for new molecular constructs that resemble the critical two-metal binding pharmacophore and the halo-substituted phenyl functionality required for HIV-1 integrase (IN) inhibition represents a vibrant area of research within drug discovery. As reported herein, we have modified our recently disclosed 1-[2-(4-fluorophenyl)ethyl]-pyrrole-2,5-dione scaffolds to design 35 novel compounds with improved biological activities against HIV-1. These new compounds show single-digit micromolar antiviral potencies against HIV-1 and low toxicity. Among of them, compound 9g and 15i had potent anti-HIV-1 activities (EC50 < 5 μM) and excellent therapeutic index (TI, CC50/EC50 > 100). These two compounds have potential as lead compounds for further optimization into clinical anti-HIV-1 agents.
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Affiliation(s)
- Guan-Nan Liu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, Zhejiang, China.
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Rong-Hua Luo
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.
| | - Yu Zhou
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Xing-Jie Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.
| | - Jian Li
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China.
| | - Liu-Meng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, Yunnan, China.
| | - Hong Liu
- CAS Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, China.
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27
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HIV-1 drug resistance and resistance testing. INFECTION GENETICS AND EVOLUTION 2016; 46:292-307. [PMID: 27587334 DOI: 10.1016/j.meegid.2016.08.031] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/24/2016] [Accepted: 08/27/2016] [Indexed: 12/23/2022]
Abstract
The global scale-up of antiretroviral (ARV) therapy (ART) has led to dramatic reductions in HIV-1 mortality and incidence. However, HIV drug resistance (HIVDR) poses a potential threat to the long-term success of ART and is emerging as a threat to the elimination of AIDS as a public health problem by 2030. In this review we describe the genetic mechanisms, epidemiology, and management of HIVDR at both individual and population levels across diverse economic and geographic settings. To describe the genetic mechanisms of HIVDR, we review the genetic barriers to resistance for the most commonly used ARVs and describe the extent of cross-resistance between them. To describe the epidemiology of HIVDR, we summarize the prevalence and patterns of transmitted drug resistance (TDR) and acquired drug resistance (ADR) in both high-income and low- and middle-income countries (LMICs). We also review to two categories of HIVDR with important public health relevance: (i) pre-treatment drug resistance (PDR), a World Health Organization-recommended HIVDR surveillance metric and (ii) and pre-exposure prophylaxis (PrEP)-related drug resistance, a type of ADR that can impact clinical outcomes if present at the time of treatment initiation. To summarize the implications of HIVDR for patient management, we review the role of genotypic resistance testing and treatment practices in both high-income and LMIC settings. In high-income countries where drug resistance testing is part of routine care, such an understanding can help clinicians prevent virological failure and accumulation of further HIVDR on an individual level by selecting the most efficacious regimens for their patients. Although there is reduced access to diagnostic testing and to many ARVs in LMIC, understanding the scientific basis and clinical implications of HIVDR is useful in all regions in order to shape appropriate surveillance, inform treatment algorithms, and manage difficult cases.
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28
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Differences among HIV-1 subtypes in drug resistance against integrase inhibitors. INFECTION GENETICS AND EVOLUTION 2016; 46:286-291. [PMID: 27353185 DOI: 10.1016/j.meegid.2016.06.047] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 06/22/2016] [Accepted: 06/24/2016] [Indexed: 11/22/2022]
Abstract
Three integrase strand transfer inhibitors (INSTIs), raltegravir (RAL), elvitegravir (EVG) and dolutegravir (DTG), have been approved by the FDA. Resistance against these three INSTIs have been reported and cross-resistance among them has been documented. Due to extensive and dynamic genetic diversity in different HIV-1 variants, significant differences in susceptibility to the INSTIs have been observed among HIV subtypes. This review summarizes what is known about this topic and discusses possible clinical implications.
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29
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Zhao XZ, Smith SJ, Maskell DP, Metifiot M, Pye VE, Fesen K, Marchand C, Pommier Y, Cherepanov P, Hughes SH, Burke TR. HIV-1 Integrase Strand Transfer Inhibitors with Reduced Susceptibility to Drug Resistant Mutant Integrases. ACS Chem Biol 2016; 11:1074-81. [PMID: 26808478 PMCID: PMC4836387 DOI: 10.1021/acschembio.5b00948] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
![]()
HIV
integrase (IN) strand transfer inhibitors (INSTIs) are among
the newest anti-AIDS drugs; however, mutant forms of IN can confer
resistance. We developed noncytotoxic naphthyridine-containing INSTIs
that retain low nanomolar IC50 values against HIV-1 variants
harboring all of the major INSTI-resistant mutations. We found by
analyzing crystal structures of inhibitors bound to the IN from the
prototype foamy virus (PFV) that the most successful inhibitors show
striking mimicry of the bound viral DNA prior to 3′-processing
and the bound host DNA prior to strand transfer. Using this concept
of “bi-substrate mimicry,” we developed a new broadly
effective inhibitor that not only mimics aspects of both the bound
target and viral DNA but also more completely fills the space they
would normally occupy. Maximizing shape complementarity and recapitulating
structural components encompassing both of the IN DNA substrates could
serve as a guiding principle for the development of new INSTIs.
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Affiliation(s)
| | | | - Daniel P. Maskell
- Clare
Hall Laboratories, The Francis Crick Institute, Blanche Lane, South Mimms, EN6 3LD, United Kingdom
| | - Mathieu Metifiot
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Valerie E. Pye
- Clare
Hall Laboratories, The Francis Crick Institute, Blanche Lane, South Mimms, EN6 3LD, United Kingdom
| | - Katherine Fesen
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Christophe Marchand
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Yves Pommier
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - Peter Cherepanov
- Clare
Hall Laboratories, The Francis Crick Institute, Blanche Lane, South Mimms, EN6 3LD, United Kingdom
- Imperial College London, St-Mary’s
Campus, Norfolk Place, London, W2 1PG, United Kingdom
| | - Stephen H. Hughes
- Developmental
Therapeutics Branch and Laboratory of Molecular Pharmacology, Center
for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
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30
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Wainberg MA, Han YS, Mesplède T. Might dolutegravir be part of a functional cure for HIV? Can J Microbiol 2016; 62:375-82. [PMID: 27031127 DOI: 10.1139/cjm-2015-0725] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Antiretroviral therapy (ART) has greatly decreased HIV-related morbidity and mortality. However, HIV can establish viral reservoirs that evade both the immune system and ART. Dolutegravir (DTG) is a second-generation integrase strand transfer inhibitor (INSTI) related to the first-generation INSTIs raltegravir (RAL) and elvitegravir (EVG). DTG shows a higher genetic barrier to the development of HIV-1 resistance than RAL and EVG. More interestingly, clinical resistance mutations to DTG in treatment-naïve patients have not been observed to date. This review summarizes recent studies on strategies toward a cure for HIV, explores resistance profiles of DTG, and discusses how DTG might help in finding a functional cure for HIV.
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Affiliation(s)
- Mark A Wainberg
- a McGill University AIDS Centre, Lady Davis for Medical Research, Jewish General Hospital, Montréal, Que., Canada.,b Division of Experimental Medicine, Faculty of Medicine, McGill University, Montréal, Que., Canada.,c Department of Microbiology and Immunology, Faculty of Medicine, McGill University, Montréal, Que., Canada
| | - Ying-Shan Han
- a McGill University AIDS Centre, Lady Davis for Medical Research, Jewish General Hospital, Montréal, Que., Canada
| | - Thibault Mesplède
- a McGill University AIDS Centre, Lady Davis for Medical Research, Jewish General Hospital, Montréal, Que., Canada
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31
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Adams JL, Byrne D, Pepe R, Gray A, Baxter JD. Virological failure in two patients with HIV-1 RNA viral loads >1,000,000 copies/ml initiated on elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate. Antivir Ther 2015; 21:175-80. [PMID: 26308882 DOI: 10.3851/imp2987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/17/2015] [Indexed: 10/23/2022]
Abstract
Very high baseline HIV-1 RNA viral loads require potent and robust antiretroviral regimens to achieve virological suppression. The coformulated single tablet regimen of elvitegravir/cobicistat/emtricitabine/tenofovir disoproxil fumarate (EVG/COBI/FTC/TDF) is recommended by the US Department of Health and Human Services for the treatment of HIV-1 in treatment-naive adults and adolescents regardless of baseline CD4(+) T-cell count and viral load. We report two cases of HIV-infected, treatment-naive patients, with baseline HIV-1 RNA viral loads >1,000,000 copies/ml who were initiated on the single tablet regimen EVG/COBI/FTC/TDF, but failed to attain viral load suppression and developed resistance to the components of EVG/COBI/FTC/TDF.
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Affiliation(s)
- Jessica L Adams
- University of the Sciences, Philadelphia College of Pharmacy, Philadelphia, PA, USA.
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32
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Doyle T, Dunn DT, Ceccherini-Silberstein F, De Mendoza C, Garcia F, Smit E, Fearnhill E, Marcelin AG, Martinez-Picado J, Kaiser R, Geretti AM. Integrase inhibitor (INI) genotypic resistance in treatment-naive and raltegravir-experienced patients infected with diverse HIV-1 clades. J Antimicrob Chemother 2015; 70:3080-6. [PMID: 26311843 PMCID: PMC4613743 DOI: 10.1093/jac/dkv243] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 07/14/2015] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVES The aim of this study was to characterize the prevalence and patterns of genotypic integrase inhibitor (INI) resistance in relation to HIV-1 clade. METHODS The cohort comprised 533 INI-naive subjects and 255 raltegravir recipients with viraemia who underwent integrase sequencing in routine care across Europe, including 134/533 (25.1%) and 46/255 (18.0%), respectively, with non-B clades (A, C, D, F, G, CRF01, CRF02, other CRFs, complex). RESULTS No major INI resistance-associated mutations (RAMs) occurred in INI-naive subjects. Among raltegravir recipients with viraemia (median 3523 HIV-1 RNA copies/mL), 113/255 (44.3%) had one or more major INI RAMs, most commonly N155H (45/255, 17.6%), Q148H/R/K + G140S/A (35/255, 13.7%) and Y143R/C/H (12/255, 4.7%). In addition, four (1.6%) raltegravir recipients showed novel mutations at recognized resistance sites (E92A, S147I, N155D, N155Q) and novel mutations at other integrase positions that were statistically associated with raltegravir exposure (K159Q/R, I161L/M/T/V, E170A/G). Comparing subtype B with non-B clades, Q148H/R/K occurred in 42/209 (20.1%) versus 2/46 (4.3%) subjects (P = 0.009) and G140S/A occurred in 36/209 (17.2%) versus 1/46 (2.2%) subjects (P = 0.005). Intermediate- to high-level cross-resistance to twice-daily dolutegravir was predicted in 40/255 (15.7%) subjects, more commonly in subtype B versus non-B clades (39/209, 18.7% versus 1/46, 2.2%; P = 0.003). A glycine (G) to serine (S) substitution at integrase position 140 required one nucleotide change in subtype B and two nucleotide changes in all non-B clades. CONCLUSIONS No major INI resistance mutations occurred in INI-naive subjects. Reduced occurrence of Q148H/R/K + G140S/A was seen in non-B clades versus subtype B, and was explained by the higher genetic barrier to the G140S mutation observed in all non-B clades analysed.
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Affiliation(s)
- Tomas Doyle
- Department of Infectious Diseases, King's College London, London, UK
| | | | | | | | | | - Erasmus Smit
- Heart of England NHS Foundation Trust, Birmingham, UK
| | | | - Anne-Genevieve Marcelin
- AP-HP, Hôpital Pitié-Salpêtrière, INSERM-Sorbonne Universités, UPMC Univ Paris 06, UMR_S 1136, Paris, France
| | | | - Rolf Kaiser
- Institute of Virology, University of Cologne, Cologne, Germany
| | - Anna Maria Geretti
- Department of Clinical Infection, Microbiology and Immunology, Institute of Infection and Global Health, University of Liverpool, Liverpool, UK
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Wainberg MA, Han YS. Will drug resistance against dolutegravir in initial therapy ever occur? Front Pharmacol 2015; 6:90. [PMID: 25972810 PMCID: PMC4413831 DOI: 10.3389/fphar.2015.00090] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/12/2015] [Indexed: 12/16/2022] Open
Abstract
Dolutegravir (DTG) is a second-generation integrase strand transfer inhibitor (INSTI) and INSTIs are the latest class of potent anti-HIV drugs. Compared to the first generation INSTIs, raltegravir, and elvitegravir, DTG shows a limited cross-resistance profile. More interestingly, clinical resistance mutations to DTG in treatment-naive patents have not been observed to this date. This review summarizes recent studies on resistance mutations to DTG and on our understanding of the mechanisms of resistance to DTG as well as future directions for research.
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Affiliation(s)
- Mark A Wainberg
- Lady Davis Institute for Medical Research, McGill University AIDS Centre, Jewish General Hospital Montreal, QC, Canada
| | - Ying-Shan Han
- Lady Davis Institute for Medical Research, McGill University AIDS Centre, Jewish General Hospital Montreal, QC, Canada
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Armenia D, Fabeni L, Alteri C, Di Pinto D, Di Carlo D, Bertoli A, Gori C, Carta S, Fedele V, Forbici F, D'Arrigo R, Svicher V, Berno G, Pizzi D, Nicastri E, Sarmati L, Pinnetti C, Ammassari A, D'Offizi G, Latini A, Andreoni M, Antinori A, Ceccherini-Silberstein F, Perno CF, Santoro MM. HIV-1 integrase genotyping is reliable and reproducible for routine clinical detection of integrase resistance mutations even in patients with low-level viraemia. J Antimicrob Chemother 2015; 70:1865-73. [PMID: 25712318 DOI: 10.1093/jac/dkv029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Accepted: 01/25/2015] [Indexed: 11/13/2022] Open
Abstract
OBJECTIVES Integrase drug resistance monitoring deserves attention because of the increasing number of patients being treated with integrase strand-transfer inhibitors. Therefore, we evaluated the integrase genotyping success rate at low-level viraemia (LLV, 51-1000 copies/mL) and resistance in raltegravir-failing patients. METHODS An integrase genotypic resistance test (GRT) was performed on 1734 HIV-1 samples collected during 2006-13. Genotyping success rate was determined according to the following viraemia levels: 51-500, 501-1000, 1001-10 000, 10 001-100 000 and >100 000 copies/mL. The reproducibility of integrase GRT was evaluated in 41 plasma samples processed in duplicate in two reference centres. The relationship between LLV and resistance prevalence was evaluated in a subset of 120 raltegravir-failing patients. RESULTS Overall, the integrase genotyping success rate was 95.7%. For viraemia levels 51-500 and 501-1000 copies/mL, the rate of success was 82.1% and 94.0%, respectively. GRT was reproducible, producing sequences with a high similarity and an equal resistance profile regardless of the sequencing centre or viraemia level. Resistance was detected both at LLV and at viraemia >1000 copies/mL (51-500 copies/mL = 18.2%; 501-1000 = 37.5%; 1001-10 000 = 53.7%; 10 001-100 000 = 30.0%; and >100 000 = 30.8%). At viraemia ≤500 copies/mL, Q148H/K/R and N155H had the same prevalence (9.1%), while the Y143C/H/R was completely absent. At early genotyping (within 3 months of raltegravir treatment), Q148H/K/R and N155H mutations were detected regardless of the viraemia level, while Y143C/H/R was observed only in samples with viraemia >1000 copies/mL. CONCLUSIONS Our findings prove the reliability of HIV-1 integrase genotyping and reinforce the concept that this assay may be useful in the management of failures even at LLV.
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Affiliation(s)
- D Armenia
- University of Rome Tor Vergata, Rome, Italy
| | - L Fabeni
- L. Spallanzani Hospital, Rome, Italy
| | - C Alteri
- University of Rome Tor Vergata, Rome, Italy
| | - D Di Pinto
- University of Rome Tor Vergata, Rome, Italy
| | - D Di Carlo
- University of Rome Tor Vergata, Rome, Italy
| | - A Bertoli
- University of Rome Tor Vergata, Rome, Italy University Hospital Tor Vergata, Rome, Italy
| | - C Gori
- L. Spallanzani Hospital, Rome, Italy
| | - S Carta
- L. Spallanzani Hospital, Rome, Italy
| | - V Fedele
- L. Spallanzani Hospital, Rome, Italy
| | - F Forbici
- L. Spallanzani Hospital, Rome, Italy
| | | | - V Svicher
- University of Rome Tor Vergata, Rome, Italy
| | - G Berno
- L. Spallanzani Hospital, Rome, Italy
| | - D Pizzi
- L. Spallanzani Hospital, Rome, Italy
| | | | - L Sarmati
- University Hospital Tor Vergata, Rome, Italy
| | | | | | | | - A Latini
- San Gallicano Hospital, Rome, Italy
| | - M Andreoni
- University Hospital Tor Vergata, Rome, Italy
| | | | | | - C F Perno
- L. Spallanzani Hospital, Rome, Italy
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Effects of raltegravir or elvitegravir resistance signature mutations on the barrier to dolutegravir resistance in vitro. Antimicrob Agents Chemother 2015; 59:2596-606. [PMID: 25691633 DOI: 10.1128/aac.04844-14] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 02/09/2015] [Indexed: 11/20/2022] Open
Abstract
The recently approved HIV-1 integrase strand transfer inhibitor (INSTI) dolutegravir (DTG) (S/GSK1349572) has overall advantageous activity when tested in vitro against HIV-1 with raltegravir (RAL) and elvitegravir (EVG) resistance signature mutations. We conducted an in vitro resistance selection study using wild-type HIV-1 and mutants with the E92Q, Y143C, Y143R, Q148H, Q148K, Q148R, and N155H substitutions to assess the DTG in vitro barrier to resistance. No viral replication was observed at concentrations of ≥ 32 nM DTG, whereas viral replication was observed at 160 nM RAL or EVG in the mutants. In the Q148H, Q148K, or Q148R mutants, G140S/Q148H, E138K/Q148K, E138K/Q148R, and G140S/Q148R secondary mutations were identified with each INSTI and showed high resistance to RAL or EVG but limited resistance to DTG. E138K and G140S, as secondary substitutions to Q148H, Q148K, or Q148R, were associated with partial recovery in viral infectivity and/or INSTI resistance. In the E92Q, Y143C, Y143R, and N155H mutants, no secondary substitutions were associated with DTG. These in vitro results suggest that DTG has a high barrier to the development of resistance in the presence of RAL or EVG signature mutations other than Q148. One explanation for this high barrier to resistance is that no additional secondary substitution of E92Q, Y143C, Y143R, or N155H simultaneously increased the fold change in 50% effective concentration (EC50) to DTG and infectivity. Although increased DTG resistance via the Q148 pathway and secondary substitutions occurs at low concentrations, a higher starting concentration may reduce or eliminate the development of DTG resistance in this pathway in vitro.
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Descamps D, Peytavin G, Visseaux B, Tubiana R, Damond F, Campa P, Charpentier C, Khuong-Josses MA, Duvivier C, Karmochkine M, Lukiana T, Matheron S. Dolutegravir in HIV-2-Infected Patients With Resistant Virus to First-line Integrase Inhibitors From the French Named Patient Program. Clin Infect Dis 2015; 60:1521-7. [PMID: 25690598 DOI: 10.1093/cid/civ124] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 02/09/2015] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND Dolutegravir has shown in vitro activity against human immunodeficiency virus type 2 (HIV-2). We report safety and efficacy data of regimens containing dolutegravir (50 mg twice daily) in antiretroviral-experienced, HIV-2-infected patients. METHODS HIV-2-infected patients experiencing virological failure to raltegravir received dolutegravir with optimized background antiretroviral combinations within the French Named Patient Program (NPP). Plasma HIV-2 RNA (pVL) was assessed at time of dolutegravir initiation (baseline), month 3, and month 6. Antiretroviral trough plasma concentrations (C12h) were determined using liquid chromatography coupled with tandem mass spectrometry. RESULTS Thirteen HIV-2-infected-patients, with a median duration of 15 years' infection and given 16 previous antiretroviral regimens, were included in NPP. Median follow-up was 9 months (min-max, 3-15 months). Median baseline pVL and CD4 cell count were 9544 copies/mL (inter quartile range [IQR], 3096-23 120 copies/mL) and 100 cells/µL (IQR, 77-171 cells/µL), respectively. Available integrase genotypic resistance patterns were Y143C/G/H/R (n = 5), Q148R/K (n = 2), and N155H (n = 4). Optimized background antiretroviral regimens conferring a genotypic sensitivity score ≤2 in 10 patients included nucleoside reverse transcriptase inhibitors associated with darunavir/ritonavir (n = 12), saquinavir/ritonavir (n = 2), and maraviroc (n = 3). At months 3 and 6, pVL was undetectable in 6 of 13 and 4 of 12 patients, respectively, and median CD4 count was 161 (101-188) cells/µL and 167 (135-1353) cells/µL, respectively. Median dolutegravir C12h was 4086 (1756-5717 ng/mL) ng/mL in 9 patients. No serious events were notified except 1 death from progressive multifocal leukoencephalopathy at month 4. CONCLUSIONS Optimized dolutegravir-containing antiretroviral regimens supported by good plasma exposure provide a substantial initial efficacy rate for salvage therapy in heavily antiretroviral-experienced HIV-2-infected patients with virus harboring resistance to first-generation integrase inhibitors. Larger numbers of patients and longer follow-up are needed to confirm these findings.
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Affiliation(s)
- Diane Descamps
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Laboratoire de Virologie
| | - Gilles Peytavin
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Laboratoire de Pharmaco-Toxicologie, AP-HP, Hôpital Bichat-Claude Bernard
| | - Benoit Visseaux
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Laboratoire de Virologie
| | - Roland Tubiana
- Service des Maladies Infectieuses et Tropicales, AP-HP, Hôpital Pitié-Salpêtrière Pierre Louis Institute of Epidemiology and Public Health, Sorbonne University, UPMC, INSERM UMR-S1136
| | - Florence Damond
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Laboratoire de Virologie
| | - Pauline Campa
- Service des Maladies Infectieuses et Tropicales, AP-HP, Hôpital Saint-Antoine, Paris
| | - Charlotte Charpentier
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Laboratoire de Virologie
| | | | - Claudine Duvivier
- Service de Maladies Infectieuses et Tropicales, AP-HP, Hôpital Necker, Centre d'Infectiologie Necker-Pasteur, Université Paris Descartes, Sorbonne Paris Cité IHU Imagine
| | - Marina Karmochkine
- Service d'Immunologie Clinique, AP-HP, Hôpital Européen Georges Pompidou, Paris
| | | | - Sophie Matheron
- Université Paris Diderot, Sorbonne Paris Cité INSERM, IAME, UMR 1137 Service de Maladies Infectieuses et Tropicales, AP-HP, Hôpital Bichat-Claude Bernard, Paris, France
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Smith RA, Raugi DN, Pan C, Sow PS, Seydi M, Mullins JI, Gottlieb GS. In vitro activity of dolutegravir against wild-type and integrase inhibitor-resistant HIV-2. Retrovirology 2015; 12:10. [PMID: 25808007 PMCID: PMC4328052 DOI: 10.1186/s12977-015-0146-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 01/21/2015] [Indexed: 11/25/2022] Open
Abstract
Background Dolutegravir recently became the third integrase strand transfer inhibitor (INSTI) approved for use in HIV-1–infected individuals. In contrast to the extensive dataset for HIV-1, in vitro studies and clinical reports of dolutegravir for HIV-2 are limited. To evaluate the potential role of dolutegravir in HIV-2 treatment, we compared the susceptibilities of wild-type and INSTI-resistant HIV-1 and HIV-2 strains to the drug using single-cycle assays, spreading infections of immortalized T cells, and site-directed mutagenesis. Findings HIV-2 group A, HIV-2 group B, and HIV-1 isolates from INSTI-naïve individuals were comparably sensitive to dolutegravir in the single-cycle assay (mean EC50 values = 1.9, 2.6, and 1.3 nM, respectively). Integrase substitutions E92Q, Y143C, E92Q + Y143C, and Q148R conferred relatively low levels of resistance to dolutegravir in HIV-2ROD9 (2- to 6-fold), but Q148K, E92Q + N155H, T97A + N155H and G140S + Q148R resulted in moderate resistance (10- to 46-fold), and the combination of T97A + Y143C in HIV-2ROD9 conferred high-level resistance (>5000-fold). In contrast, HIV-1NL4-3 mutants E92Q + N155H, G140S + Q148R, and T97A + Y143C showed 2-fold, 4-fold, and no increase in EC50, respectively, relative to the parental strain. The resistance phenotypes for E92Q + N155H, and G140S + Q148R HIV-2ROD9 were also confirmed in spreading infections of CEM-ss cells. Conclusions Our data support the use of dolutegravir in INSTI-naïve HIV-2 patients but suggest that, relative to HIV-1, a broader array of replacements in HIV-2 integrase may enable cross-resistance between dolutegravir and other INSTI. Clinical studies are needed to evaluate the efficacy of dolutegravir in HIV-2–infected individuals, including patients previously treated with raltegravir or elvitegravir.
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Wainberg MA, Han YS. Will drug resistance against dolutegravir in initial therapy ever occur? Front Pharmacol 2015. [PMID: 25972810 DOI: 10.3389/fphar.2015.00090/bibtex] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023] Open
Abstract
Dolutegravir (DTG) is a second-generation integrase strand transfer inhibitor (INSTI) and INSTIs are the latest class of potent anti-HIV drugs. Compared to the first generation INSTIs, raltegravir, and elvitegravir, DTG shows a limited cross-resistance profile. More interestingly, clinical resistance mutations to DTG in treatment-naive patents have not been observed to this date. This review summarizes recent studies on resistance mutations to DTG and on our understanding of the mechanisms of resistance to DTG as well as future directions for research.
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Affiliation(s)
- Mark A Wainberg
- Lady Davis Institute for Medical Research, McGill University AIDS Centre, Jewish General Hospital Montreal, QC, Canada
| | - Ying-Shan Han
- Lady Davis Institute for Medical Research, McGill University AIDS Centre, Jewish General Hospital Montreal, QC, Canada
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Mercadel CJ, Skelley JW, Kyle JA, Elmore LK. Dolutegravir: An Integrase Strand Transfer Inhibitor for the Treatment of Human Immunodeficiency Virus 1 in Adults. J Pharm Technol 2014; 30:216-226. [PMID: 34860879 PMCID: PMC5990157 DOI: 10.1177/8755122514544126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023] Open
Abstract
Objective: To review the efficacy, safety, pharmacokinetics, pharmacodynamics, administration, drug interactions, and cost of dolutegravir (Tivicay), a third in class integrase strand transfer inhibitor (INSTI), for the treatment of human immunodeficiency virus (HIV-1) in adults. Data Sources: MEDLINE, International Pharmaceutical Abstracts, ClinicalTrials.gov, and Google Scholar searches (January 2000 to May 2014) were conducted for articles published in English and limited to human subjects, using the key words antiretroviral drugs, HIV integrase strand transfer inhibitors, dolutegravir, DTG, and S/GSK1349572. Study Selection and Data Extraction: Following MEDLINE, International Pharmaceutical Abstracts, ClinicalTrials.gov, and Google Scholar searches, 6 clinical trials were identified and included in this review. Phase III/IV studies evaluating the safety and efficacy of dolutegravir in humans were selected and evaluated. Data Synthesis: In treatment naïve and experienced patients dolutegravir was noninferior to raltegravir at suppressing viral load when added to background therapy. Abacavir/lamivudine/dolutegravir was noninferior to efavirenz/emtricitabine/tenofovir disoproxil fumarate and darunavir/ritonavir plus background therapy at suppressing viral load. In patients with multiple-class antiretroviral resistance at baseline, dolutegravir decreased HIV RNA by 1.4 log10 copies/mL at day 8, 63% of patients had achieved virologic suppression at week 8, and retained potency in treatment-experienced INSTI-resistant patients up to week 48 or 96 of follow-up. Conclusion: Dolutegravir is a safe, effective, and well-tolerated treatment option for adults with HIV-1, even in the setting of resistance to other antiretrovirals.
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Antiviral characteristics of GSK1265744, an HIV integrase inhibitor dosed orally or by long-acting injection. Antimicrob Agents Chemother 2014; 59:397-406. [PMID: 25367908 DOI: 10.1128/aac.03909-14] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
GSK1265744 is a new HIV integrase strand transfer inhibitor (INSTI) engineered to deliver efficient antiviral activity with a once-daily, low-milligram dose that does not require a pharmacokinetic booster. The in vitro antiviral profile and mechanism of action of GSK1265744 were established through integrase enzyme assays, resistance passage experiments, and cellular assays with site-directed molecular (SDM) HIV clones resistant to other classes of anti-HIV-1 agents and earlier INSTIs. GSK1265744 inhibited HIV replication with low or subnanomolar efficacy and with a selectivity index of at least 22,000 under the same culture conditions. The protein-adjusted half-maximal inhibitory concentration (PA-EC50) extrapolated to 100% human serum was 102 nM. When the virus was passaged in the presence of GSK1265744, highly resistant mutants with more than a 10-fold change (FC) in EC50 relative to that of the wild-type were not observed for up to 112 days of culture. GSK1265744 demonstrated activity against SDM clones containing the raltegravir (RAL)-resistant Y143R, Q148K, N155H, and G140S/Q148H signature variants (FC less than 6.1), while these mutants had a high FC in the EC50 for RAL (11 to >130). Either additive or synergistic effects were observed when GSK1265744 was tested in combination with representative anti-HIV agents, and no antagonistic effects were seen. These findings demonstrate that, similar to dolutegravir, GSK1265744 is differentiated as a new INSTI, having a markedly distinct resistance profile compared with earlier INSTIs, RAL, and elvitegravir (EVG). The collective data set supports further clinical development of GSK1265744.
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Virological and immunological outcomes of elvitegravir-based regimen in a treatment-naïve HIV-2-infected patient. AIDS 2014; 28:2329-31. [PMID: 25313590 DOI: 10.1097/qad.0000000000000414] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Fitness impaired drug resistant HIV-1 is not compromised in cell-to-cell transmission or establishment of and reactivation from latency. Viruses 2014; 6:3487-99. [PMID: 25243372 PMCID: PMC4189035 DOI: 10.3390/v6093487] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2014] [Revised: 09/01/2014] [Accepted: 09/17/2014] [Indexed: 12/24/2022] Open
Abstract
Both the presence of latently infected cells and cell-to-cell viral transmission are means whereby HIV can partially evade the inhibitory activities of antiretroviral drugs. The clinical use of a novel integrase inhibitor, dolutegravir (DTG), has established hope that this compound may limit HIV persistence, since no treatment-naïve patient treated with DTG has yet developed resistance against this drug, even though a R263K substitution in integrase confers low-level resistance to this drug in tissue culture. Here, we have studied the impact of R263K on HIV replication capacity and the ability of HIV to establish or be reactivated from latency and/or spread through cell-to-cell transmission. We affirm that DTG-resistant viruses have diminished capacity to replicate and establish infection. However, DTG-resistant viruses were efficiently transmitted via cell-to-cell contacts, and were as likely to establish and be reactivated from latent infection as wildtype viruses. Both cell-to-cell transmission of HIV and the establishment of and reemergence from latency are important for the establishment and maintenance of viral reservoirs. Since the DTG and other drug-resistant viruses studied here do not seem to have been impaired in regard to these activities, studies should be undertaken to characterize HIV reservoirs in patients who have been treated with DTG.
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Grobler JA, Hazuda DJ. Resistance to HIV integrase strand transfer inhibitors: in vitro findings and clinical consequences. Curr Opin Virol 2014; 8:98-103. [PMID: 25128610 DOI: 10.1016/j.coviro.2014.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 07/11/2014] [Accepted: 07/14/2014] [Indexed: 10/24/2022]
Abstract
Three integrase strand transfer inhibitors have now been approved for the treatment of HIV infection, raltegravir, cobicistat-boosted elvitegravir, and dolutegravir. Each of these agents selects for unique signature mutations; however, there can be significant cross resistance among all three drugs when multiple mutations are present or are presented in the context of different genetic backgrounds such as non B-subtypes. Many of the mutations that are associated with integrase inhibitor resistance have a profound effect on integrase function and viral replication and thus, while only one or two mutations may be sufficient to impact susceptibility, virologic failure and treatment-associated resistance have been infrequent with all three drugs to date.
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Affiliation(s)
- Jay A Grobler
- Merck and Company, 770 Sumneytown Pike, West Point, PA, United States
| | - Daria J Hazuda
- Merck and Company, 770 Sumneytown Pike, West Point, PA, United States.
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Abstract
Viral infections play an important role in human diseases, and recent outbreaks in the advent of globalization and ease of travel have underscored their prevention as a critical issue in safeguarding public health. Despite the progress made in immunization and drug development, many viruses lack preventive vaccines and efficient antiviral therapies, which are often beset by the generation of viral escape mutants. Thus, identifying novel antiviral drugs is of critical importance and natural products are an excellent source for such discoveries. In this mini-review, we summarize the antiviral effects reported for several natural products and herbal medicines.
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Affiliation(s)
- Liang-Tzung Lin
- Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Chan Hsu
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Ching Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan
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Zhao XZ, Smith SJ, Métifiot M, Marchand C, Boyer PL, Pommier Y, Hughes SH, Burke TR. 4-amino-1-hydroxy-2-oxo-1,8-naphthyridine-containing compounds having high potency against raltegravir-resistant integrase mutants of HIV-1. J Med Chem 2014; 57:5190-202. [PMID: 24901667 PMCID: PMC4216207 DOI: 10.1021/jm5001908] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
There
are currently three HIV-1 integrase (IN) strand transfer
inhibitors (INSTIs) approved by the FDA for the treatment of AIDS.
However, the emergence of drug-resistant mutants emphasizes the need
to develop additional agents that have improved efficacies against
the existent resistant mutants. As reported herein, we modified our
recently disclosed 1-hydroxy-2-oxo-1,2-dihydro-1,8-naphthyridine-3-carboxamides
IN inhibitors to develop compounds that have improved efficacies against
recombinant IN in biochemical assays. These new compounds show single-digit
nanomolar antiviral potencies against HIV vectors that carry wild-type
(WT) IN in a single round replication assay and have improved potency
against vectors harboring the major forms of drug resistant IN mutants.
These compounds also have low toxicity for cultured cells, which in
several cases, results in selectivity indices (CC50/EC50) of greater than 10000. The compounds have the potential,
with additional structural modifications, to yield clinical agents
that are effective against the known strains of resistant viruses.
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Affiliation(s)
- Xue Zhi Zhao
- Chemical Biology Laboratory, and ‡HIV Drug Resistance Program, Center for Cancer Research, NCI at Frederick, National Institutes of Health , Building 376, Boyles Street, P.O. Box B, Frederick, Maryland 21702, United States
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48
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Pollicita M, Surdo M, Di Santo F, Cortese MF, Fabeni L, Fedele V, Malet I, Marcelin AG, Calvez V, Ceccherini-Silberstein F, Perno CF, Svicher V. Comparative replication capacity of raltegravir-resistant strains and antiviral activity of the new-generation integrase inhibitor dolutegravir in human primary macrophages and lymphocytes. J Antimicrob Chemother 2014; 69:2412-9. [DOI: 10.1093/jac/dku144] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
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49
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Abstract
Dolutegravir, an orally administered HIV-1 integrase strand transfer inhibitor (INSTI), is under development by ViiV Healthcare. Like other drugs belonging in the INSTI class of antiretroviral agents, dolutegravir binds to the integrase site of HIV-1 and blocks the strand transfer integration step, thereby preventing the replication of HIV-1. Dolutegravir is being developed as an unboosted once-daily therapy for use in combination with other antiretroviral agents for the treatment of both treatment-naïve and treatment-experienced patients with HIV-1 infection. Dolutegravir has been approved in the USA for the treatment of HIV-1 infection in combination with other antiretroviral agents and has been filed for approval in the EU and Canada. Phase III development is underway in North America, Europe, South Africa, South America, Australia and Taiwan. This article summarizes the milestones in the development of dolutegravir leading to this first approval for the treatment of HIV-1 infection in both therapy-naïve and -experienced patients.
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50
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Rahman MA, Kuse N, Murakoshi H, Chikata T, Gatanaga H, Oka S, Takiguchi M. Raltegravir and elvitegravir-resistance mutation E92Q affects HLA-B*40:02-restricted HIV-1-specific CTL recognition. Microbes Infect 2014; 16:434-8. [PMID: 24657622 DOI: 10.1016/j.micinf.2014.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Revised: 03/10/2014] [Accepted: 03/11/2014] [Indexed: 11/30/2022]
Abstract
Interplay between drug-resistance mutations in CTL epitopes and HIV-1-specific CTLs may influence the control of HIV-1 viremia. However, the effect of integrase inhibitor (INI)-resistance mutations on the CTL recognition has not been reported. We here investigated the effect of a raltegravir and elvitegravir-resistance mutation (E92Q) on HLA-B*40:02-restricted Int92-102 (EL11: ETGQETAYFLL)-specific CTLs. EL11-specific CTLs recognized E92Q peptide-pulsed and E92Q mutant virus-infected cells less effectively than EL11 peptide-pulsed and wild-type virus-infected cells, respectively. Ex vivo ELISpot analysis showed no induction of E92Q-specific T cells in chronically HIV-1-infected individuals. Thus, we demonstrated that EL11-specific CTL recognition was affected by the INI-resistance mutation.
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Affiliation(s)
- Mohammad Arif Rahman
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Nozomi Kuse
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Hayato Murakoshi
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Takayuki Chikata
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan
| | - Hiroyuki Gatanaga
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan; AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Shinichi Oka
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan; AIDS Clinical Center, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku-ku, Tokyo 162-8655, Japan
| | - Masafumi Takiguchi
- Center for AIDS Research, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan.
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