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Chumillas S, Loharch S, Beltrán M, Szewczyk MP, Bernal S, Puertas MC, Martinez-Picado J, Alcamí J, Bedoya LM, Marchán V, Gallego J. Exploring the HIV-1 Rev Recognition Element (RRE)-Rev Inhibitory Capacity and Antiretroviral Action of Benfluron Analogs. Molecules 2023; 28:7031. [PMID: 37894510 PMCID: PMC10609163 DOI: 10.3390/molecules28207031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/03/2023] [Accepted: 10/05/2023] [Indexed: 10/29/2023] Open
Abstract
Human immunodeficiency virus-type 1 (HIV-1) remains one of the leading contributors to the global burden of disease, and novel antiretroviral agents with alternative mechanisms are needed to cure this infection. Here, we describe an exploratory attempt to optimize the antiretroviral properties of benfluron, a cytostatic agent previously reported to exhibit strong anti-HIV activity likely based on inhibitory actions on virus transcription and Rev-mediated viral RNA export. After obtaining six analogs designed to modify the benzo[c]fluorenone system of the parent molecule, we examined their antiretroviral and toxicity properties together with their capacity to recognize the Rev Recognition Element (RRE) of the virus RNA and inhibit the RRE-Rev interaction. The results indicated that both the benzo[c] and cyclopentanone components of benfluron are required for strong RRE-Rev target engagement and antiretroviral activity and revealed the relative impact of these moieties on RRE affinity, RRE-Rev inhibition, antiviral action and cellular toxicity. These data provide insights into the biological properties of the benzo[c]fluorenone scaffold and contribute to facilitating the design of new anti-HIV agents based on the inhibition of Rev function.
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Affiliation(s)
- Sergi Chumillas
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, IBUB, Universitat de Barcelona, 08028 Barcelona, Spain;
| | - Saurabh Loharch
- Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (S.L.); (M.P.S.)
| | - Manuela Beltrán
- Instituto de Salud Carlos III, 28220 Majadahonda, Spain; (M.B.); (L.M.B.)
- CIBERINFEC, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Mateusz P. Szewczyk
- Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (S.L.); (M.P.S.)
- Escuela de Doctorado, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain
| | - Silvia Bernal
- IrsiCaixa AIDS Research Institute, 08916 Badalona, Spain
- Infectious Diseases and Immunity Department, University of Vic—Central University of Catalonia, 08500 Vic, Spain
| | - Maria C. Puertas
- CIBERINFEC, Instituto de Salud Carlos III, 28029 Madrid, Spain
- IrsiCaixa AIDS Research Institute, 08916 Badalona, Spain
- Germans Trias i Pujol Research Institute, 08916 Badalona, Spain
| | - Javier Martinez-Picado
- CIBERINFEC, Instituto de Salud Carlos III, 28029 Madrid, Spain
- IrsiCaixa AIDS Research Institute, 08916 Badalona, Spain
- Infectious Diseases and Immunity Department, University of Vic—Central University of Catalonia, 08500 Vic, Spain
- Germans Trias i Pujol Research Institute, 08916 Badalona, Spain
- Catalan Institution for Research and Advanced Studies, 08010 Barcelona, Spain
| | - José Alcamí
- Instituto de Salud Carlos III, 28220 Majadahonda, Spain; (M.B.); (L.M.B.)
- CIBERINFEC, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Luis M. Bedoya
- Instituto de Salud Carlos III, 28220 Majadahonda, Spain; (M.B.); (L.M.B.)
- CIBERINFEC, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Facultad de Farmacia, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Vicente Marchán
- Departament de Química Inorgànica i Orgànica, Secció de Química Orgànica, IBUB, Universitat de Barcelona, 08028 Barcelona, Spain;
| | - José Gallego
- Centro de Investigación Traslacional San Alberto Magno, Universidad Católica de Valencia San Vicente Mártir, 46001 Valencia, Spain; (S.L.); (M.P.S.)
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Simba-Lahuasi Á, Alcamí J, Beltrán M, Bedoya LM, Gallego J. Novel HIV-1 RNA biogenesis inhibitors identified by virtual pharmacophore-based screening. Biochem Pharmacol 2023; 215:115734. [PMID: 37549794 DOI: 10.1016/j.bcp.2023.115734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 07/24/2023] [Accepted: 08/02/2023] [Indexed: 08/09/2023]
Abstract
The complex between the Rev protein of HIV-1 and the Rev Recognition Element (RRE) within the virus RNA promotes nuclear export of unspliced or incompletely spliced viral transcripts and is required for virus transmission. Here, we have screened a virtual collection of compounds using a pharmacophore based on the chemical similarity of previously characterized inhibitors to identify new chemical scaffolds blocking the RRE-Rev interaction. The best molecules discovered with this strategy inhibited the complex by binding to the RRE and exhibited substantial antiretroviral activity (between 0.582 and 11.3 μM EC50 values) likely associated to inhibitory actions on viral transcription and Rev function. These results have allowed us to identify structural features required for RRE-Rev inhibition as well as to add new compounds to the pool of possible candidates for developing antiretroviral agents based on blockage of HIV-1 RNA biogenesis.
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Affiliation(s)
- Álvaro Simba-Lahuasi
- CITSAM, Fundación Universidad Católica de Valencia San Vicente Mártir, C/Quevedo 2 46001, Valencia, Spain; Escuela de Doctorado, Fundación Universidad Católica de Valencia San Vicente Mártir, Spain
| | - José Alcamí
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2 28220, Majadahonda, Spain; CIBERINFEC, Instituto de Salud Carlos III, Spain
| | - Manuela Beltrán
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2 28220, Majadahonda, Spain; CIBERINFEC, Instituto de Salud Carlos III, Spain
| | - Luis M Bedoya
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2 28220, Majadahonda, Spain; CIBERINFEC, Instituto de Salud Carlos III, Spain; Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n 28040, Madrid, Spain.
| | - José Gallego
- CITSAM, Fundación Universidad Católica de Valencia San Vicente Mártir, C/Quevedo 2 46001, Valencia, Spain.
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3
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Leal L, Guardo AC, Bedoya LM, Rodríguez de Miguel C, Climent N, Rovira C, Beltrán M, Llach J, Alcamí J, Kashuba AD, Gatell JM, Plana M, García F. Pharmacokinetics, the Immunological Impact, and the Effect on HIV Ex-Vivo Infectivity of Maraviroc, Raltegravir, and Lopinavir in Men Who Have Sex with Men Using Postexposure Prophylaxis. AIDS Res Hum Retroviruses 2023; 39:211-221. [PMID: 36416229 PMCID: PMC10325810 DOI: 10.1089/aid.2021.0232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Most of the studies using the colorectal tissue explants challenge model have been conducted after one single dose and before reaching a steady state. We consider that longer exposure as in 28-day postexposure prophylaxis (PEP) course and in an at-risk setting, such as after a sexual risk exposure to HIV could give us valuable information about these drugs. In a substudy we assessed pharmacokinetics, changes on immune system and ex-vivo rectal mucosal susceptibility to HIV-1 infection after taking maraviroc (MVC), raltegravir (RAL), and ritonavir-boosted lopinavir (LPV/r) PEP-based regimens in 30 men who have sex with men. Participants received 28 days of twice-daily MVC (n = 11), RAL (n = 10) or LPV/r (n = 9) all with tenofovir/emtricitabine (TDF/FTC) backbone. Blood, rectal fluid, and rectal tissue samples were collected at days 7, 28, and 90 after starting PEP. The samples obtained at day 90 were considered baseline. All studied antiretrovirals were quantifiable at 7 and 28 days in all tissues. Activation markers were increased in CD4 mucosal mononuclear cells (MMCs) after 28 days of MVC: CD38 + 68.5 versus 85.1, p = .008 and CD38+DR +16.1 versus 26.7, p = .008. Exposure to MVC at both endpoints (7 and 28 days) was associated with significant suppression of HIV-1BAL (p = .005 and p = .028), but we did not observe this effect with RAL or LPV/r. Merging together changes in MMC in all arms, we found a positive correlation in the CD8 T cell lineage between the infectivity at day 7 and activation (CD38+ r = 0.43, p = .025, DR + r = 0.547, p = .003 and 38+DR+ r = 0.526, p = .05), senescence (CD57+CD28- r = 0.479, p = .012), naive cells (RA+CCR7+ r = 0.484, p = .01), and CCR5 expression (r = 0.593, p = .001). We conclude that MVC in combination with TDF/FTC was associated with viral suppression in rectal explants and that overall ex-vivo HIV infectivity correlated with activation and senescence in CD8 MMCs.
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Affiliation(s)
- Lorna Leal
- Department of Infectious Diseases, Hospital Clínic Barcelona, Barcelona, Spain
- AIDS and HIV Infection Research Group, IDIBAPS, Barcelona, Spain
- Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
| | | | - Luis M. Bedoya
- AIDS Immunopathogenesis Unit, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
- Department of Pharmacology, Faculty of Pharmacy, Universidad Complutense de Madrid, Madrid, Spain
| | | | - Núria Climent
- AIDS and HIV Infection Research Group, IDIBAPS, Barcelona, Spain
| | - Cristina Rovira
- AIDS and HIV Infection Research Group, IDIBAPS, Barcelona, Spain
| | - Manuela Beltrán
- AIDS Immunopathogenesis Unit, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Josep Llach
- Endoscopy Unit, Hospital Clínic Barcelona, CIBERehd, Barcelona, Spain
| | - Jose Alcamí
- AIDS Immunopathogenesis Unit, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - Angela D.M. Kashuba
- Division of Pharmacotherapy and Experimental Therapeutics, University of North Carolina at Chapel Hill, Eshelman School of Pharmacy, Chapel Hill, North Carolina, USA
| | - Jose M. Gatell
- Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
- ViiV Healthcare, Barcelona, Spain
| | - Montserrat Plana
- AIDS and HIV Infection Research Group, IDIBAPS, Barcelona, Spain
- Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
| | - Felipe García
- Department of Infectious Diseases, Hospital Clínic Barcelona, Barcelona, Spain
- Faculty of Medicine, Universitat de Barcelona, Barcelona, Spain
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Taddeo VA, Núñez MJ, Beltrán M, Castillo UG, Menjívar J, Jiménez IA, Alcamí J, Bedoya LM, Bazzocchi IL. Withanolide-Type Steroids from Physalis nicandroides Inhibit HIV Transcription. J Nat Prod 2021; 84:2717-2726. [PMID: 34549952 PMCID: PMC8946265 DOI: 10.1021/acs.jnatprod.1c00637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Indexed: 06/13/2023]
Abstract
The aim of the present study is to report the isolation, structural elucidation, and antiviral evaluation of four new withanolide-type steroids, named nicansteroidins A-D (1-4), together with nine related known compounds (5-13) isolated from the aerial parts of Physalis nicandroides. Their structures were established based on an extensive spectroscopic analysis, including 1D and 2D NMR techniques. Outstandingly, nicansteroidins A and B possess an unusual side chain with an exocyclic double bond on the δ-lactone system, whereas nicansteroidins C and D have an uncommon cycloperoxide functionality in ring A as distinct structural motifs. Their biological evaluation as inhibitors of human immunodeficiency virus type 1 replication revealed that two compounds from this series, 7 and 13, displayed strong inhibition of HIV-1 replication with IC50 values lower than 2 μM. Moreover, cellular mechanism experiments showed that the main target of these compounds in the HIV replication cycle is viral transcription. This study is the first report of withanolide-type steroids as HIV inhibitors and provides insight into their potential as candidates for further preclinical studies.
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Affiliation(s)
- Vito A. Taddeo
- Instituto
Universitario de Bio-Orgánica Antonio González and Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida
Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife Spain
- Dipartimento
di Farmacia, Università degli Studi
“G. d’Annunzio” Chieti-Pescara, Via dei Vestini 31, 66100 Chieti, Italy
| | - Marvin J. Núñez
- Laboratorio
de Investigación en Productos Naturales, Facultad de Química
y Farmacia, Universidad de El Salvador, Final Avenida de Mártires
y Héroes del 30 de Julio, San Salvador 1101, El Salvador
| | - Manuela Beltrán
- Retrovirus
Laboratory, Department of AIDS Immunopathogenesis, National Centre
of Microbiology, Instituto de Salud Carlos
III, Ctra. Pozuelo Km. 2, 28220 Majadahonda, Madrid, Spain
| | - Ulises G. Castillo
- Laboratorio
de Investigación en Productos Naturales, Facultad de Química
y Farmacia, Universidad de El Salvador, Final Avenida de Mártires
y Héroes del 30 de Julio, San Salvador 1101, El Salvador
| | - Jenny Menjívar
- Museo
de Historia Natural de El Salvador, Ministerio
de Cultura, San Salvador 1101, El Salvador
| | - Ignacio A. Jiménez
- Instituto
Universitario de Bio-Orgánica Antonio González and Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida
Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife Spain
| | - José Alcamí
- Retrovirus
Laboratory, Department of AIDS Immunopathogenesis, National Centre
of Microbiology, Instituto de Salud Carlos
III, Ctra. Pozuelo Km. 2, 28220 Majadahonda, Madrid, Spain
| | - Luis M. Bedoya
- Retrovirus
Laboratory, Department of AIDS Immunopathogenesis, National Centre
of Microbiology, Instituto de Salud Carlos
III, Ctra. Pozuelo Km. 2, 28220 Majadahonda, Madrid, Spain
- Pharmacology,
Pharmacognosy and Botany Department, Pharmacy Faculty, Universidad Complutense de Madrid, Pz. Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Isabel L. Bazzocchi
- Instituto
Universitario de Bio-Orgánica Antonio González and Departamento
de Química Orgánica, Universidad
de La Laguna, Avenida
Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife Spain
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5
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Apaza Ticona L, Bermejo P, Guerra JA, Abad MJ, Beltrán M, Martín Lázaro R, Alcamí J, Bedoya LM. Ethanolic extract of Artemisia campestris subsp. glutinosa (Besser) Batt. inhibits HIV-1 replication in vitro through the activity of terpenes and flavonoids on viral entry and NF-κB pathway. J Ethnopharmacol 2020; 263:113163. [PMID: 32758575 PMCID: PMC7397943 DOI: 10.1016/j.jep.2020.113163] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/26/2020] [Accepted: 07/06/2020] [Indexed: 05/17/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE The genus Artemisia spp. is well known for its anti-infectious properties and its high content in anti-infectious compounds, like the well-known sweet wormwood (Artemisia annua L.). Another Artemisia species, Artemisia campestris subsp. glutinosa (Besser) Batt., field wormwood, has been traditionally used as medicinal plant in the Mediterranean region. AIM OF THE STUDY The aim of this study is to investigate the anti-HIV activity of field wormwood, to identify the compounds responsible for this activity and their structure and mechanism of action. MATERIALS AND METHODS Antiviral activity of isolated compounds and extracts was evaluated in HIV-1 infections of lymphoblastoid cells. We also evaluated the mechanism of action of isolated compounds. Viral entry was studied comparing the inhibitory effect of isolated compounds on wild type HIV-1 and VSV pseudotyped HIV-1. To assess the viral transcriptional effect, plasmids encoding luciferase reporter genes under the control of the whole genome of HIV-1 or NF-κB or Sp1 transcription factors were transfected in the presence of the compounds under evaluation. Finally, antioxidant activity was assessed by quantitation of reduced and total glutathione in treated cell cultures. RESULTS Ethanolic and aqueous extracts of Artemisia campestris subsp. glutinosa (Besser) Batt. subsp. glutinosa displayed anti-HIV activity in vitro, although ethanolic extract was more powerful (IC50 14.62 μg/mL). Bio-guided ethanolic extract fractionation leads to the isolation and characterization of two terpenes, damsin and canrenone, and four flavonoids, 6, 2', 4'-trimethoxyflavone, acerosin, cardamonin and xanthomicrol. All the isolated compounds inhibited HIV-1 replication in vitro with IC50 values between the middle nanomolar and the low micromolar range. Their anti-HIV mechanism of action is due to the bloking of viral entry and/or transcription inhibition, without correlation with the antioxidant activity, through interference with the cellular transcription factors NF-κB and Sp1, which are targets that are not currently reached by antiretroviral therapy. CONCLUSION We describe here the anti-HIV activity of field wormwood, Artemisia campestris subsp. glutinosa (Besser) Batt., and the isolation and study of the mechanism of action of two terpenes and four flavonoids, responsible, at least in part, for its activity, through the inhibition of two different cellular targets affecting the HIV replication cycle. The activity of these compounds in cellular targets could explain why plant extracts can be used in the treatment of different diseases. Besides, the presence of several compounds with dual and different mechanisms of action could prove useful in the treatment of HIV-1 infection, since it could aid to overcome drug resistances and simplify drug therapy. This work is a further step in understanding the anti-infectious activity of wormwood species and their use in treating infectious diseases.
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Affiliation(s)
- L Apaza Ticona
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain; Department of Organic Chemistry, Faculty of Sciences, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain.
| | - P Bermejo
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain.
| | - J A Guerra
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain.
| | - M J Abad
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain.
| | - M Beltrán
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III, Ctra. Pozuelo Km. 2, 28224, Madrid, Spain.
| | - R Martín Lázaro
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain.
| | - J Alcamí
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III, Ctra. Pozuelo Km. 2, 28224, Madrid, Spain.
| | - L M Bedoya
- Department of Pharmacology, Pharmacognosy and Botany, Faculty of Pharmacy, Universidad Complutense de Madrid, Plza. Ramón y Cajal S/n, 28040, Madrid, Spain; AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III, Ctra. Pozuelo Km. 2, 28224, Madrid, Spain.
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6
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De la Torre-Tarazona HE, Jiménez R, Bueno P, Camarero S, Román L, Fernández-García JL, Beltrán M, Nothias LF, Cachet X, Paolini J, Litaudon M, Alcami J, Bedoya LM. 4-Deoxyphorbol inhibits HIV-1 infection in synergism with antiretroviral drugs and reactivates viral reservoirs through PKC/MEK activation synergizing with vorinostat. Biochem Pharmacol 2020; 177:113937. [PMID: 32224142 DOI: 10.1016/j.bcp.2020.113937] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Accepted: 03/24/2020] [Indexed: 01/06/2023]
Abstract
Latent HIV reservoirs are the main obstacle to eradicate HIV infection. One strategy proposes to eliminate these viral reservoirs by pharmacologically reactivating the latently infected T cells. We show here that a 4-deoxyphorbol ester derivative isolated from Euphorbia amygdaloides ssp. semiperfoliata, 4β-dPE A, reactivates HIV-1 from latency and could potentially contribute to decrease the viral reservoir. 4β-dPE A shows two effects in the HIV replication cycle, infection inhibition and HIV transactivation, similarly to other phorboids PKC agonists such PMA and prostratin and to other diterpene esters such SJ23B. Our data suggest 4β-dPE A is non-tumorigenic, unlike the related compound PMA. As the compounds are highly similar, the lack of tumorigenicity by 4β-dPE A could be due to the lack of a long side lipophilic chain that is present in PMA. 4β-dPE activates HIV transcription at nanomolar concentrations, lower than the concentration needed by other latency reversing agents (LRAs) such as prostratin and similar to bryostatin. PKCθ/MEK activation is required for the transcriptional activity, and thus, anti-latency activity of 4β-dPE A. However, CD4, CXCR4 and CCR5 receptors down-regulation effect seems to be independent of PCK/MEK, suggesting the existence of at least two different targets for 4β-dPE A. Furthermore, NF-κb transcription factor is involved in 4β-dPE HIV reactivation, as previously shown for other PKCs agonists. We also studied the effects of 4β-dPE A in combination with other LRAs. When 4β-dPE A was combined with another PKC agonists such as prostratin an antagonic effect was achieved, while, when combined with an HDAC inhibitor such as vorinostat, a strong synergistic effect was obtained. Interestingly, the latency reversing effect of the combination was synergistically diminishing the EC50 value but also increasing the efficacy showed by the drugs alone. In addition, combinations of 4β-dPE A with antiretroviral drugs as CCR5 antagonist, NRTIs, NNRTIs and PIs, showed a consistent synergistic effect, suggesting that the combination would not interefer with antiretroviral therapy (ART). Finally, 4β-dPE A induced latent HIV reactivation in CD4 + T cells of infected patients under ART at similar levels than the tumorigenic phorbol derivative PMA, showing a clear reactivation effect. In summary, we describe here the mechanism of action of a new potent deoxyphorbol derivative as a latency reversing agent candidate to decrease the size of HIV reservoirs.
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Affiliation(s)
- H E De la Torre-Tarazona
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - R Jiménez
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - P Bueno
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - S Camarero
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - L Román
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - J L Fernández-García
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain; Pharmacology Department, Pharmacy Faculty, Universidad Complutense de Madrid, Pz. Ramón Y Cajal s/n, 28040 Madrid, Spain
| | - M Beltrán
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain
| | - L F Nothias
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - X Cachet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay, 91198 Gif-sur-Yvette, France; CiTCoM Laboratory, UMR 8038 CNRS-University of Paris, Faculty of Pharmacy, University of Paris, 75006 Paris, France
| | - J Paolini
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica, 20250 Corte, France
| | - M Litaudon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay, 91198 Gif-sur-Yvette, France
| | - J Alcami
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain; Infectious Diseases Unit, IBIDAPS, Hospital Clínic, University of Barcelona, Spain.
| | - L M Bedoya
- AIDS Immunopathology Department, National Centre of Microbiology, Instituto de Salud Carlos III. Ctra. Pozuelo Km. 2. Majadahonda, 28224 Madrid, Spain; Pharmacology Department, Pharmacy Faculty, Universidad Complutense de Madrid, Pz. Ramón Y Cajal s/n, 28040 Madrid, Spain.
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7
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Prado S, Beltrán M, Moreno Á, Bedoya LM, Alcamí J, Gallego J. A small-molecule inhibitor of HIV-1 Rev function detected by a diversity screen based on RRE-Rev interference. Biochem Pharmacol 2018; 156:68-77. [PMID: 30071201 DOI: 10.1016/j.bcp.2018.07.040] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Accepted: 07/27/2018] [Indexed: 11/18/2022]
Abstract
The Rev protein of HIV-1 binds to the Rev Recognition Element (RRE) in the virus RNA to promote nuclear export of unspliced and partially spliced transcripts, an essential step in the virus transmission cycle. Here, we describe the screening of a library of chemically diverse compounds with an assay based on monitoring the interaction between the RNA-binding α-helix of Rev and its high-affinity binding site in the RRE. This screen allowed the identification of a benzofluorenone compound that inhibited the formation of the full-length RRE-Rev ribonucleoprotein by associating to the RRE, and blocked HIV-1 transcription and Rev action in cells. This molecule, previously studied as a cytostatic agent, had substantial antiretroviral activity. Together with other screening hits, it provides a new chemical scaffold for the development of antiretroviral agents based on blockage of HIV-1 RNA biogenesis.
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Affiliation(s)
- Silvia Prado
- Facultad de Medicina, Universidad Católica de Valencia, C/Quevedo 2, 46001 Valencia, Spain
| | - Manuela Beltrán
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain
| | - Ángela Moreno
- Facultad de Medicina, Universidad Católica de Valencia, C/Quevedo 2, 46001 Valencia, Spain
| | - Luis M Bedoya
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain; Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - José Alcamí
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain.
| | - José Gallego
- Facultad de Medicina, Universidad Católica de Valencia, C/Quevedo 2, 46001 Valencia, Spain.
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Bedoya LM, Beltrán M, García-Pérez J, Obregón-Calderón P, Callies O, Jímenez IA, Bazzocchi IL, Alcamí J. Promiscuous, Multi-Target Lupane-Type Triterpenoids Inhibits Wild Type and Drug Resistant HIV-1 Replication Through the Interference With Several Targets. Front Pharmacol 2018; 9:358. [PMID: 29720939 PMCID: PMC5915803 DOI: 10.3389/fphar.2018.00358] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 03/27/2018] [Indexed: 12/20/2022] Open
Abstract
Current research on antiretroviral therapy is mainly focused in the development of new formulations or combinations of drugs belonging to already known targets. However, HIV-1 infection is not cured by current therapy and thus, new approaches are needed. Bevirimat was developed by chemical modification of betulinic acid, a lupane-type pentacyclic triterpenoid (LPT), as a first-in-class HIV-1 maturation inhibitor. However, in clinical trials, bevirimat showed less activity than expected because of the presence of a natural mutation in Gag protein that conferred resistance to a high proportion of HIV-1 strains. In this work, three HIV-1 inhibitors selected from a set of previously screened LPTs were investigated for their targets in the HIV-1 replication cycle, including their maturation inhibitor effect. LPTs were found to inhibit HIV-1 infection acting as promiscuous compounds with several targets in the HIV-1 replication cycle. LPT12 inhibited HIV-1 infection mainly through reverse transcription, integration, viral transcription, viral proteins (Gag) production and maturation inhibition. LPT38 did it through integration, viral transcription or Gag production inhibition and finally, LPT42 inhibited reverse transcription, viral transcription or Gag production. The three LPTs inhibited HIV-1 infection of human primary lymphocytes and infections with protease inhibitors and bevirimat resistant HIV-1 variants with similar values of IC50. Therefore, we show that the LPTs tested inhibited HIV-1 infection through acting on different targets depending on their chemical structure and the activities of the different LPTs vary with slight structural alterations. For example, of the three LPTs under study, we found that only LPT12 inhibited infectivity of newly-formed viral particles, suggesting a direct action on the maturation process. Thus, the multi-target behavior gives a potential advantage to these compounds since HIV-1 resistance can be overcome by modulating more than one target.
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Affiliation(s)
- Luis M Bedoya
- Retrovirus Laboratory, Department of AIDS Immunopathogenesis, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain.,Department of Pharmacology, Pharmacy Faculty, Universidad Complutense de Madrid, Madrid, Spain
| | - Manuela Beltrán
- Retrovirus Laboratory, Department of AIDS Immunopathogenesis, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Javier García-Pérez
- Retrovirus Laboratory, Department of AIDS Immunopathogenesis, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Patricia Obregón-Calderón
- Retrovirus Laboratory, Department of AIDS Immunopathogenesis, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
| | - Oliver Callies
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Ignacio A Jímenez
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - Isabel L Bazzocchi
- Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, San Cristóbal de La Laguna, Spain
| | - José Alcamí
- Retrovirus Laboratory, Department of AIDS Immunopathogenesis, National Centre of Microbiology, Instituto de Salud Carlos III, Madrid, Spain
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9
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Nothias LF, Boutet-Mercey S, Cachet X, De La Torre E, Laboureur L, Gallard JF, Retailleau P, Brunelle A, Dorrestein PC, Costa J, Bedoya LM, Roussi F, Leyssen P, Alcami J, Paolini J, Litaudon M, Touboul D. Environmentally Friendly Procedure Based on Supercritical Fluid Chromatography and Tandem Mass Spectrometry Molecular Networking for the Discovery of Potent Antiviral Compounds from Euphorbia semiperfoliata. J Nat Prod 2017; 80:2620-2629. [PMID: 28925702 DOI: 10.1021/acs.jnatprod.7b00113] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A supercritical fluid chromatography-based targeted purification procedure using tandem mass spectrometry and molecular networking was developed to analyze, annotate, and isolate secondary metabolites from complex plant extract mixture. This approach was applied for the targeted isolation of new antiviral diterpene esters from Euphorbia semiperfoliata whole plant extract. The analysis of bioactive fractions revealed that unknown diterpene esters, including jatrophane esters and phorbol esters, were present in the samples. The purification procedure using semipreparative supercritical fluid chromatography led to the isolation and identification of two new jatrophane esters (13 and 14) and one known (15) and three new 4-deoxyphorbol esters (16-18). The structure and absolute configuration of compound 16 were confirmed by X-ray crystallography. This compound was found to display antiviral activity against Chikungunya virus (EC50 = 0.45 μM), while compound 15 proved to be a potent and selective inhibitor of HIV-1 replication in a recombinant virus assay (EC50 = 13 nM). This study showed that a supercritical fluid chromatography-based protocol and molecular networking can facilitate and accelerate the discovery of bioactive small molecules by targeting molecules of interest, while minimizing the use of toxic solvents.
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Affiliation(s)
- Louis-Félix Nothias
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Stéphanie Boutet-Mercey
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Xavier Cachet
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
- Laboratoire de Pharmacognosie, UMR 8638 COMETE CNRS, Faculté de Pharmacie, University of Paris Descartes , Sorbonne Paris Cité, 75270 Paris, France
| | - Erick De La Torre
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Laurent Laboureur
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Jean-François Gallard
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pascal Retailleau
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Alain Brunelle
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pieter C Dorrestein
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego , La Jolla, California 92093, United States
| | - Jean Costa
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
| | - Luis M Bedoya
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Fanny Roussi
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - Pieter Leyssen
- Laboratory for Virology and Experimental Chemotherapy, Rega Institute for Medical Research, KU Leuven , B-3000 Leuven, Belgium
| | - José Alcami
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III , Ctra. Pozuelo Km.2, 28220, Majadahonda, Madrid, Spain
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid . Pz. Ramon y Cajal s/n, 28040 Madrid, Spain
| | - Julien Paolini
- Laboratoire de Chimie des Produits Naturels, CNRS, UMR SPE 6134, University of Corsica , 20250 Corte, France
| | - Marc Litaudon
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
| | - David Touboul
- Institut de Chimie des Substances Naturelles, CNRS UPR 2301, University of Paris-Saclay , 91198 Gif-sur-Yvette, France
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10
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Olmedo DA, López-Pérez JL, Del Olmo E, Bedoya LM, Sancho R, Alcamí J, Muñoz E, Feliciano AS, Gupta MP. Neoflavonoids as Inhibitors of HIV-1 Replication by Targeting the Tat and NF-κB Pathways. Molecules 2017; 22:E321. [PMID: 28218730 PMCID: PMC6155902 DOI: 10.3390/molecules22020321] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 01/19/2017] [Accepted: 02/16/2017] [Indexed: 11/16/2022] Open
Abstract
Twenty-eight neoflavonoids have been prepared and evaluated in vitro against HIV-1. Antiviral activity was assessed on MT-2 cells infected with viral clones carrying the luciferase reporter gene. Inhibition of HIV transcription and Tat function were tested on cells stably transfected with the HIV-LTR and Tat protein. Seven 4-phenylchromen-2-one derivatives showed HIV transcriptional inhibitory activity but only the phenylchrome-2-one 10 inhibited NF-κB and displayed anti-Tat activity simultaneously. Compounds 10, 14, and 25, inhibited HIV replication in both targets at concentrations <25 μM. The assays of these synthetic 4-phenylchromen-2-ones may aid in the investigation of some aspects of the anti-HIV activity of such compounds and could serve as a scaffold for designing better anti-HIV compounds, which may lead to a potential anti-HIV therapeutic drug.
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Affiliation(s)
- Dionisio A Olmedo
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - José Luis López-Pérez
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Esther Del Olmo
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Luis M Bedoya
- National Centre of Microbiology, Institute Carlos III, Crt. Majadahonda a Pozuelo, 28220 Majadahonda, Madrid, Spain.
- Pharmacology Department, College of Pharmacy, Complutense University. Pz. Ramón Y Cajal s/n, 28040 Madrid, Spain.
| | - Rocío Sancho
- Department of Cellular Biology, Physiology and Immunology, University of Córdoba, Faculty of Medicine Avda de Menendez Pidal s/n, 14004 Córdoba, Spain.
| | - José Alcamí
- National Centre of Microbiology, Institute Carlos III, Crt. Majadahonda a Pozuelo, 28220 Majadahonda, Madrid, Spain.
| | - Eduardo Muñoz
- Department of Cellular Biology, Physiology and Immunology, University of Córdoba, Faculty of Medicine Avda de Menendez Pidal s/n, 14004 Córdoba, Spain.
| | - Arturo San Feliciano
- Pharmaceutical Chemistry Area, Department of Pharmaceutical Sciences, University of Salamanca, Faculty of Pharmacy, CIETUS, IBSAL, Campus Miguel de Unamuno, 37007 Salamanca, Spain.
| | - Mahabir P Gupta
- CIFLORPAN, Center for Pharmacognostic Research on Panamanian Flora, College of Pharmacy, University of Panama, P.O. Box 0824-00172 Panama, Panama.
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11
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Prado S, Beltrán M, Coiras M, Bedoya LM, Alcamí J, Gallego J. Bioavailable inhibitors of HIV-1 RNA biogenesis identified through a Rev-based screen. Biochem Pharmacol 2016; 107:14-28. [PMID: 26896646 DOI: 10.1016/j.bcp.2016.02.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2015] [Accepted: 02/15/2016] [Indexed: 12/23/2022]
Abstract
New antiretroviral agents with alternative mechanisms are needed to complement the combination therapies used to treat HIV-1 infections. Here we report the identification of bioavailable molecules that interfere with the gene expression processes of HIV-1. The compounds were detected by screening a small library of FDA-approved drugs with an assay based on measuring the displacement of Rev, and essential virus-encoded protein, from its high-affinity RNA binding site. The antiretroviral activity of two hits was based on interference with post-integration steps of the HIV-1 cycle. Both hits inhibited RRE-Rev complex formation in vitro, and blocked LTR-dependent gene expression and viral transcription in cellular assays. The best compound altered the splicing pattern of HIV-1 transcripts in a manner consistent with Rev inhibition. This mechanism of action is different from those used by current antiretroviral agents. The screening hits recognized the Rev binding site in the viral RNA, and the best compound did so with substantial selectivity, allowing the identification of a new RNA-binding scaffold. These results may be used for developing novel antiretroviral drugs.
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Affiliation(s)
- Silvia Prado
- Facultad de Medicina, Universidad Católica de Valencia, C/Quevedo 2, 46001 Valencia, Spain
| | - Manuela Beltrán
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain
| | - Mayte Coiras
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain
| | - Luis M Bedoya
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain; Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - José Alcamí
- Instituto de Salud Carlos III, Carretera Majadahonda-Pozuelo km 2, 28220 Majadahonda, Spain.
| | - José Gallego
- Facultad de Medicina, Universidad Católica de Valencia, C/Quevedo 2, 46001 Valencia, Spain.
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12
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Callies O, Bedoya LM, Beltrán M, Muñoz A, Calderón PO, Osorio AA, Jiménez IA, Alcamí J, Bazzocchi IL. Isolation, Structural Modification, and HIV Inhibition of Pentacyclic Lupane-Type Triterpenoids from Cassine xylocarpa and Maytenus cuzcoina. J Nat Prod 2015; 78:1045-55. [PMID: 25927586 DOI: 10.1021/np501025r] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
As a part of our investigation into new anti-HIV agents, we report herein the isolation, structure elucidation, and biological activity of six new (1-6) and 20 known (7-26) pentacyclic lupane-type triterpenoids from the stem of Cassine xylocarpa and root bark of Maytenus cuzcoina. Their stereostructures were elucidated on the basis of spectroscopic and spectrometric methods, including 1D and 2D NMR techniques. To gain a more complete understanding of the structural requirements for anti-HIV activity, derivatives 27-48 were prepared by chemical modification of the main secondary metabolites. Sixteen compounds from this series displayed inhibitory effects of human immunodeficiency virus type 1 replication with IC50 values in the micromolar range, highlighting compounds 12, 38, and 42 (IC50 4.08, 4.18, and 1.70 μM, respectively) as the most promising anti-HIV agents.
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Affiliation(s)
- Oliver Callies
- †Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Luis M Bedoya
- ‡Unidad de Inmunopatología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo Km.2, 28220-Majadahonda, Madrid, Spain
- §Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense de Madrid, Ramón y Cajal s/n, 28040, Madrid, Spain
| | - Manuela Beltrán
- ‡Unidad de Inmunopatología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo Km.2, 28220-Majadahonda, Madrid, Spain
| | - Alejandro Muñoz
- ‡Unidad de Inmunopatología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo Km.2, 28220-Majadahonda, Madrid, Spain
| | - Patricia Obregón Calderón
- ‡Unidad de Inmunopatología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo Km.2, 28220-Majadahonda, Madrid, Spain
| | - Alex A Osorio
- †Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - Ignacio A Jiménez
- †Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
| | - José Alcamí
- ‡Unidad de Inmunopatología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Carretera Pozuelo Km.2, 28220-Majadahonda, Madrid, Spain
| | - Isabel L Bazzocchi
- †Instituto Universitario de Bio-Orgánica "Antonio González", Universidad de La Laguna, Avenida Astrofísico Francisco Sánchez 2, 38206 La Laguna, Tenerife, Spain
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13
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González-Bulnes L, Ibáñez I, Bedoya LM, Beltrán M, Catalán S, Alcamí J, Fustero S, Gallego J. Innenrücktitelbild: Structure-Based Design of an RNA-Binding p-Terphenylene Scaffold that Inhibits HIV-1 Rev Protein Function (Angew. Chem. 50/2013). Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201309856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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González-Bulnes L, Ibáñez I, Bedoya LM, Beltrán M, Catalán S, Alcamí J, Fustero S, Gallego J. Structure-based design of an RNA-binding p-terphenylene scaffold that inhibits HIV-1 Rev protein function. Angew Chem Int Ed Engl 2013; 52:13405-9. [PMID: 24214163 DOI: 10.1002/anie.201306665] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/25/2013] [Indexed: 12/29/2022]
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15
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González-Bulnes L, Ibáñez I, Bedoya LM, Beltrán M, Catalán S, Alcamí J, Fustero S, Gallego J. Structure-Based Design of an RNA-Bindingp-Terphenylene Scaffold that Inhibits HIV-1 Rev Protein Function. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306665] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Osorio AA, Muñóz A, Torres-Romero D, Bedoya LM, Perestelo NR, Jiménez IA, Alcamí J, Bazzocchi IL. Olean-18-ene triterpenoids from Celastraceae species inhibit HIV replication targeting NF-kB and Sp1 dependent transcription. Eur J Med Chem 2012; 52:295-303. [DOI: 10.1016/j.ejmech.2012.03.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 03/16/2012] [Accepted: 03/17/2012] [Indexed: 12/31/2022]
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17
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Bedoya LM, Abad MJ, Sánchez-Palomino S, Alcami J, Bermejo P. Ellagitannins from Tuberaria lignosa as entry inhibitors of HIV. Phytomedicine 2010; 17:69-74. [PMID: 19748255 DOI: 10.1016/j.phymed.2009.08.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Revised: 06/22/2009] [Accepted: 08/06/2009] [Indexed: 05/28/2023]
Abstract
Screening of plants from the Iberian Peninsula for anti-human immunodeficiency virus (-HIV) activity revealed that aqueous extract of Tuberaria lignosa gave positive results. Following an activity-guided procedure, the crude extract was counterextracted, and the subsequent fractions obtained tested for their anti-HIV activity in vitro. The bioassay-guided fractionation of the extract afforded an ellagitannin enriched fraction (EEF) isolated for the first time from this species. This EEF exhibited antiviral activity against HIV in MT-2 infected cells, with an IC(50) value of 2.33mug/ml (selectivity index greater than 21). Inhibition of HIV infection by EEF appears to be mediated by CD4 down-regulation, the main receptor for HIV entry. CXCR4 and CCR5 receptors were not affected by EEF, explaining why EEF is able to inhibit R5 and X4 infections.
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Affiliation(s)
- L M Bedoya
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Crt. Majadahonda a Pozuelo, 28220 Majadahonda, Madrid, Spain
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18
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Martínez-Ávila O, Bedoya LM, Marradi M, Clavel C, Alcamí J, Penadés S. Multivalent Manno-Glyconanoparticles Inhibit DC-SIGN-Mediated HIV-1 Trans-Infection of Human T Cells. Chembiochem 2009; 10:1806-9. [DOI: 10.1002/cbic.200900294] [Citation(s) in RCA: 103] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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19
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Bedoya LM, Márquez N, Martínez N, Gutiérrez-Eisman S, Álvarez A, Calzado MA, Rojas JM, Appendino G, Muñoz E, Alcamí J. SJ23B, a jatrophane diterpene activates classical PKCs and displays strong activity against HIV in vitro. Biochem Pharmacol 2009; 77:965-78. [DOI: 10.1016/j.bcp.2008.11.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2008] [Revised: 11/24/2008] [Accepted: 11/25/2008] [Indexed: 10/21/2022]
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20
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Bedoya LM, Alvarez A, Bermejo M, González N, Beltrán M, Sánchez-Palomino S, Cruz SM, Gaitán I, del Olmo E, Escarcena R, García PA, Cáceres A, San Feliciano A, Alcamí J. Guatemalan plants extracts as virucides against HIV-1 infection. Phytomedicine 2008; 15:520-524. [PMID: 18068962 DOI: 10.1016/j.phymed.2007.10.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2007] [Revised: 07/16/2007] [Accepted: 10/18/2007] [Indexed: 05/25/2023]
Abstract
Prevention methods to avoid transmission of pathogens, including HIV, are crucial in the control of infectious diseases, not only to block epidemic spread but to avoid long-term treatments leading to emergence of resistances and drug associated side effects. Together with vaccine development, the discovery of new virucidal agents represents a research priority in this setting. In the screening of new compounds with antiviral activity, three Guatemalan plant extracts from Justicia reptans, Neurolaena lobata and Pouteria viridis were evaluated with a classic antiviral assay and were found to inhibit HIV replication. This activity was corroborated by an original recombinant virus assay, leading us to perform a deeper study of the virucidal activity. Active fractions were non-toxic in vitro and also inhibited other enveloped viruses. Moreover, these fractions were able to inhibit the transfer of HIV from dendritic cells (DCs) to lymphocytes, that represents the main way of HIV spread in vivo.
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Affiliation(s)
- Luis M Bedoya
- Departamento de Inmunopatología del SIDA, Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Spain
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Bedoya LM, del Olmo E, Sancho R, Barboza B, Beltrán M, García-Cadenas AE, Sánchez-Palomino S, López-Pérez JL, Muñoz E, San Feliciano A, Alcamí J. Anti-HIV activity of stilbene-related heterocyclic compounds. Bioorg Med Chem Lett 2006; 16:4075-9. [PMID: 16713260 DOI: 10.1016/j.bmcl.2006.04.087] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2006] [Revised: 04/27/2006] [Accepted: 04/28/2006] [Indexed: 01/19/2023]
Abstract
Viral transcription has not been routinely targeted in the development of new antiviral drugs. This crucial step of the viral cycle depends on the concerted action of cellular and viral proteins such as NF-kappaB and Tat. In the present study, stilbene-related heterocyclic compounds including benzalphthalide, phthalazinone, imidazoindole and pyrimidoisoindole derivatives are tested for their anti-HIV activity. Original assays based on recombinant viruses were used to evaluate HIV replication inhibition and stably transfected cell lines were used to evaluate inhibition of Tat and NF-kappaB proteins. Some of the stilbene-related heterocyclic compounds analysed displayed anti-HIV activity through interference with NF-kappaB and Tat function. Moreover, compounds inhibiting both targets displayed a stronger activity on viral replication.
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Affiliation(s)
- Luis M Bedoya
- Unidad de Inmunopatalogía, Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220-Majadahonda, Madrid, Spain
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22
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Bedoya LM, Beltrán M, Sancho R, Olmedo DA, Sánchez-Palomino S, del Olmo E, López-Pérez JL, Muñoz E, San Feliciano A, Alcamí J. 4-Phenylcoumarins as HIV transcription inhibitors. Bioorg Med Chem Lett 2005; 15:4447-50. [PMID: 16137881 DOI: 10.1016/j.bmcl.2005.07.041] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2005] [Revised: 07/07/2005] [Accepted: 07/14/2005] [Indexed: 11/28/2022]
Abstract
We have evaluated the anti-HIV activity of eleven natural 4-phenylcoumarins isolated from Marila pluricostata and three of their derivatives. Antiviral activity was assessed on MT-2 cells infected with viral clones carrying the luciferase gene as reporter. Inhibitions of HIV transcription and Tat function were tested on cells stably transfected with the HIV-LTR and Tat protein. Most of the coumarins tested displayed NF-kappaB inhibition. Two coumarins were also Tat antagonists and the presence of both activities correlated with a stronger inhibition of HIV replication. Our results show that antiviral effect of 4-phenylcoumarins can be related to the inhibition of NF-kappaB and Tat, and suggest that these types of compounds can be useful in the treatment of HIV infection as viral transcription inhibitors.
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Affiliation(s)
- Luis M Bedoya
- Unidad de Inmunopatalogía, Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28220-Majadahonda, Madrid, Spain
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Márquez N, Sancho R, Bedoya LM, Alcamí J, López-Pérez JL, Feliciano AS, Fiebich BL, Muñoz E. Mesuol, a natural occurring 4-phenylcoumarin, inhibits HIV-1 replication by targeting the NF-κB pathway. Antiviral Res 2005; 66:137-45. [PMID: 15911030 DOI: 10.1016/j.antiviral.2005.02.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2004] [Revised: 02/21/2005] [Accepted: 02/21/2005] [Indexed: 11/22/2022]
Abstract
Coumarins and structurally related compounds have been recently shown to inhibit replication of human immunodeficiency virus (HIV) and thus, exhibit a therapeutic potential. In this study we report that mesuol and isomesuol, two 4-phenyl coumarins, isolated from the tree Marila pluricostata, suppress HIV-1 replication in Jurkat T cells. These coumarins do not affect the reverse transcription and integration steps of the viral cycle and their antiviral effect is additive with that of azidothymidine (AZT). In addition, mesuol inhibits TNFalpha-induced HIV-1-LTR transcriptional activity by targeting the nuclear factor-kappaB (NF-kappaB) pathway. While mesuol does not prevent either the binding of NF-kappaB to DNA or the phosphorylation and degradation of NF-kappaB inhibitory protein, IkappaBalpha, it inhibits the phosphorylation and the transcriptional activity of the NF-kappaB p65 subunit in TNFalpha-stimulated cells. These results highlight the potential of the NF-kappaB transcription factor as a target for anti-HIV-1 compounds such as 4-phenyl coumarins, which could serve as lead compounds for the development of additional therapeutic approaches against AIDS.
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Affiliation(s)
- Nieves Márquez
- Departamento de Biología Celular, Fisiología e Inmunología, Universidad de Córdoba, Facultad de Medicina, Avda. de Menéndez Pidal s/n, 14004 Córdoba, Spain
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Bedoya LM, Palomino SS, Abad MJ, Bermejo P, Alcami J. Screening of selected plant extracts for in vitro inhibitory activity on human immunodeficiency virus. Phytother Res 2002; 16:550-4. [PMID: 12237813 DOI: 10.1002/ptr.992] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
As part of our screening of anti-AIDS agents from natural sources, extracts of 15 medicinal plants widely used in the folk medicines of North America and Europe were evaluated in vitro. Most of the extracts tested were relatively nontoxic to human lymphocytic MT-2 cells, but only the extracts of Hysopp officinalis and Dittrichia viscosa exhibited anti-HIV activity in an in vitro MTT assay. The 50% hydroalcohol extract of Hysopp officinalis and the aqueous extract of Dittrichia viscosa showed inhibitory effects against HIV-1 induced infections in MT-2 cells at concentrations ranging from 50 to 100 microg/mL and 25 to 400 microg/mL, respectively. Both extracts showed no appreciable cytotoxicity at these concentrations.
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Affiliation(s)
- L M Bedoya
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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Abstract
As part of our screening of anti-AIDS agents from natural sources, ethanolic and aqueous extracts of 15 medicinal plants widely used in the folk medicine of the Iberian Peninsula were evaluated in vitro. Most of the extracts tested were relatively nontoxic to human lymphocytic MT-2 cells, but only the extracts of Tuberaria lignosa and Sanguisorba minor magnolii exhibited anti-HIV activity in an in vitro MTT assay. The aqueous extracts of these plants showed inhibitory effects against HIV-1 induced infections in MT-2 cells at concentrations ranging from 12.5 to 50 microg/ml and 50 microg/ml, respectively. Both extracts showed no appreciable cytotoxicity at these concentrations.
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Affiliation(s)
- L M Bedoya
- Departamento de Farmacología, Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain.
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