Research Topics
| F Ceccherini-SilbersteinSummaryAffiliation: University of Rome Tor Vergata Country: Italy Publications
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Detail Information
Publications
Specific enfuvirtide-associated mutational pathways in HIV-1 Gp41 are significantly correlated with an increase in CD4(+) cell count, despite virological failureValentina Svicher
Department of Experimental Medicine, University of Tor Vergata Rome, Italy
J Infect Dis 197:1408-18. 2008..We investigated the correlation of enfuvirtide (ENF)-associated gp41 mutational clusters with viroimmunological parameters, as well as the potential underlying mechanisms...
Selected amino acid mutations in HIV-1 B subtype gp41 are associated with specific gp120v₃ signatures in the regulation of co-receptor usageSalvatore Dimonte
University of Rome Tor Vergata, Via Montpellier 1, Rome, Italy
Retrovirology 8:33. 2011..The binomial correlation phi coefficient was used to assess covariation among gp120V3 and gp41 mutations; subsequently the average linkage hierarchical agglomerative clustering was performed...
Characterization of the patterns of drug-resistance mutations in newly diagnosed HIV-1 infected patients naïve to the antiretroviral drugsClaudia Alteri
Department of Experimental Medicine and Biochemical Sciences, University of Tor Vergata Rome, Italy
BMC Infect Dis 9:111. 2009..This study is aimed to assess the prevalence and the patterns of the mutations recently associated with transmitted drug resistance in the reverse transcriptase (RT) and in protease (PR) of HIV-1...
Identification of a novel Rev-interacting cellular proteinSusanne Kramer-Hammerle
Institute of Molecular Virology, GSF National Research Center for Environment and Health, Ingolstadter Landstrasse 1, D 85764 Neuherberg, Germany
BMC Cell Biol 6:20. 2005..Identification of Rev-modulating cellular factors may eventually contribute to the design of novel antiviral therapies...
Secondary integrase resistance mutations found in HIV-1 minority quasispecies in integrase therapy-naive patients have little or no effect on susceptibility to integrase inhibitorsFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
Antimicrob Agents Chemother 54:3938-48. 2010....
High sequence conservation of human immunodeficiency virus type 1 reverse transcriptase under drug pressure despite the continuous appearance of mutationsFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
J Virol 79:10718-29. 2005..This new knowledge could be of help in the structure-based design of novel resistance-evading drugs...
Characterization and structural analysis of novel mutations in human immunodeficiency virus type 1 reverse transcriptase involved in the regulation of resistance to nonnucleoside inhibitorsFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
J Virol 81:11507-19. 2007..Mutations beyond those currently known to confer resistance should be considered for a better prediction of clinical response to reverse transcriptase inhibitors and for the development of more efficient new-generation NNRTIs...
Specific HIV-1 integrase polymorphisms change their prevalence in untreated versus antiretroviral-treated HIV-1-infected patients, all naive to integrase inhibitorsFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
J Antimicrob Chemother 65:2305-18. 2010..To define whether the prevalence of mutations associated with integrase inhibitor (INI) resistance is different in untreated versus antiretroviral-treated HIV-1-infected individuals (all INI naive)...
Impact of HIV-1 reverse transcriptase polymorphism F214L on virological response to thymidine analogue-based regimens in antiretroviral therapy (ART)-naive and ART-experienced patientsFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
J Infect Dis 196:1180-90. 2007..A negative association between the polymorphism F214L and type 1 thymidine analogue (TA) mutations (TAMs) has been observed. However, the virological response to TAs according to the detection of F214L has not been evaluated...
The use of human immunodeficiency virus resistance tests in clinical practiceF Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
Clin Microbiol Infect 16:1511-7. 2010....
Characterization and structural analysis of HIV-1 integrase conservationFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
AIDS Rev 11:17-29. 2009....
Effect of suppressing HIV viremia on the HIV progression of patients undergoing a genotype resistance test after treatment failureM Zaccarelli
Clinical Department, National Institute for Infectious Diseases Lazzaro Spallanzani, Via Portuense 292, 00149, Rome, Italy
Infection 37:203-9. 2009..To assess the role of viral suppression on clinical progression following a genotypic resistance test (GRT), we have examined a database on patients failing to respond to combined antiretroviral therapy (cART)...
Clinical and genotypic correlates of mutation K65R in HIV-infected patients failing regimens not including tenofovirMaria Paola Trotta
Clinical Department, National Institute for Infectious Diseases Lazzaro Spallanzani, IRCCS, Rome, Italy
J Med Virol 78:535-41. 2006..However, exposure to abacavir and/or efavirenz, presence of Q151M and/or L100I, and prior AIDS may favor the selection of this mutation. Conversely, long 3TC exposure, and the presence of M184V or NAMs seem to be protective...
The V118I mutation as a marker of advanced HIV infection and disease progressionMauro Zaccarelli
Clinical Department, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
Antivir Ther 12:163-8. 2007..We focused on the V1181 mutation in order to evaluate factors associated with its detection and its relationship with HIV progression...
The lowest X4 Geno2Pheno false-positive rate is associated with greater CD4 depletion in HIV-1 infected patientsM M Santoro
University of Tor Vergata, Rome, Italy
Clin Microbiol Infect 18:E289-98. 2012....
Mutations in HIV-1 reverse transcriptase potentially associated with hypersusceptibility to nonnucleoside reverse-transcriptase inhibitors: effect on response to efavirenz-based therapy in an urban observational cohortValerio Tozzi
National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
J Infect Dis 189:1688-95. 2004..We evaluated the effect of RT mutations associated with hypersusceptibility to NNRTIs on the response to efavirenz-based therapy...
Two different patterns of mutations are involved in the genotypic resistance score for atazanavir boosted versus unboosted by ritonavir in multiple failing patientsM M Santoro
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133, Rome, Italy
Infection 37:233-43. 2009..To date, however, genotypic resistance scores (GRSs) have been developed only for boosted-ATV. We have determined GRS associated with virologic response (VR) for both ATV300/r and ATV400 in highly pre-treated HIV-1 infected patients...
Favourable evolution of virological and immunological profiles in treated and untreated patients in Italy in the period 1998-2008M C F Prosperi
Clinic of Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
HIV Med 12:174-82. 2011....
Characterization of drug-resistance mutations in HIV type 1 isolates from drug-naive and ARV-treated patients in BulgariaMaria Mercedes Santoro
Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Rome, Italy
AIDS Res Hum Retroviruses 24:1133-8. 2008..Furthermore, surveillance of PR and RT sequences is also convenient to monitor the introduction of nonsubtype B HIV-1 strains in Bulgaria...
Temporal change in the use of genotypic resistance testing over the years 1999--2003M Santoro
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
New Microbiol 27:141-4. 2004..0001). Overall, data suggest that the genotype test is increasingly considered, and requested also for patients at earlier stages of drug history and/or at less severe disease stage...
Incidence of malignancies in HIV-infected patients and prognostic role of current CD4 cell count: evidence from a large Italian cohort studyM C F Prosperi
Istituto di Clinica delle Malattie Infettive, Universita Cattolica del Sacro Cuore, Rome, Italy
Clin Infect Dis 50:1316-21. 2010..9-3.1 cases per 1000 person-years of follow-up), respectively. Lower current CD4 cell count was an independent predictor of developing malignancies, with the association being stronger for ADM than for NADM...
The profile of mutational clusters associated with lamivudine resistance can be constrained by HBV genotypesValentina Svicher
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
J Hepatol 50:461-70. 2009..To investigate the different clusters of mutations associated with lamivudine resistance in HBV genotypes D and A...
Limited development and progression of resistance of HIV-1 to the nucleoside analogue reverse transcriptase inhibitor lamivudine in human primary macrophagesStefano Aquaro
Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome
J Antimicrob Chemother 55:872-8. 2005....
Dynamics of NRTI resistance mutations during therapy interruptionMaria Trignetti
Experimental Medicine Department, University of Rome Tor Vergata, 00133, Rome, Italy
AIDS Res Hum Retroviruses 25:57-64. 2009..Overall, it seems that the loss of NRTI drug resistance mutations during TI is not an ordered process, and in the majority of patients occurs without specific interaction among mutations...
Treatment with the fusion inhibitor enfuvirtide influences the appearance of mutations in the human immunodeficiency virus type 1 regulatory protein revValentina Svicher
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, Rome, Italy
Antimicrob Agents Chemother 53:2816-23. 2009..This highlights the multiple roles of ENF (and perhaps other entry inhibitors) in modulating the correct interplay between the different HIV-1 genes and proteins during the HIV-1 life cycle...
Different evolution of genotypic resistance profiles to emtricitabine versus lamivudine in tenofovir-containing regimensValentina Svicher
Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
J Acquir Immune Defic Syndr 55:336-44. 2010..To investigate genotypic resistance profiles to emtricitabine + tenofovir (FTC + TDF) in-vivo and in-vitro, and compare them with lamivudine + tenofovir (3TC + TDF)...
Virologic correlates of adherence to antiretroviral medications and therapeutic failureCarlo Federico Perno
INMI L Spallanzani, Rome, Italy
J Acquir Immune Defic Syndr 31:S118-22. 2002....
Use of novel antiretroviral agents in rescue regimens: a case of early virological failure to raltegravirChiara Tommasi
National Institute for Infectious Diseases, INMI, L Spallanzani, Rome, Italy
Scand J Infect Dis 42:237-9. 2010..We describe the clinical outcome of a heavily antiretroviral-experienced patient who experienced early failure to raltegravir...
Performance of genotypic tropism testing in clinical practice using the enhanced sensitivity version of Trofile as reference assay: results from the OSCAR Study GroupValentina Svicher
University of Rome Tor Vergata, Department of Experimental Medicine, Roma, Italy
New Microbiol 33:195-206. 2010..The goal of the OSCAR programme is to evaluate the performances of genotypic HIV-1 tropism testing in clinical practice using the enhanced sensitivity version of Trofile (ESTA) as reference-assay...
Molecular diversity of HIV in AlbaniaMassimo Ciccozzi
Epidemiology Unit, Department of Infectious Diseases, Istituto Superiore di Sanita, Rome, Italy
J Infect Dis 192:475-9. 2005..In conclusion, non-B subtypes are predominant in Albania, and the prevalence of resistance to antiretroviral drugs is still low...
Historical resistance profile helps to predict salvage failureMauro Zaccarelli
Clinical Department, National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
Antivir Ther 14:285-91. 2009....
Temporal characterization of drug resistance associated mutations in HIV-1 protease and reverse transcriptase in patients failing antiretroviral therapyMaria Mercedes Santoro
Department of Experimental Medicine, Tor Vergata University of Rome, Italy
New Microbiol 29:89-100. 2006....
Identification of the minimal conserved structure of HIV-1 protease in the presence and absence of drug pressureFrancesca Ceccherini-Silberstein
Department of Experimental Medicine, University of Rome Tor Vergata, Italy
AIDS 18:F11-9. 2004....
The N137 and P140 amino acids in the p51 and the P95 amino acid in the p66 subunit of human immunodeficiency virus type 1 (HIV-1) reverse transcriptase are instrumental to maintain catalytic activity and to design new classes of anti-HIV-1 drugsJoeri Auwerx
Rega Institute for Medical Research, K.U. Leuven, Belgium
FEBS Lett 579:2294-300. 2005....
HIV fitness and resistance as covariates associated with the appearance of mutations under antiretroviral treatmentCarlo Federico Perno
National Institute for Infectious Diseases Lazzaro Spallanzani, Rome, Italy
Scand J Infect Dis Suppl 35:37-40. 2003....
Involvement of novel human immunodeficiency virus type 1 reverse transcriptase mutations in the regulation of resistance to nucleoside inhibitorsValentina Svicher
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
J Virol 80:7186-98. 2006....
Novel drug resistance mutations in HIV: recognition and clinical relevanceCarlo Federico Perno
Department of Experimental Medicine and Biochemical Sciences, University of Rome Tor Vergata, Italy
AIDS Rev 8:179-90. 2006..Such novel mutations should be considered for improved prediction of clinical response to antiretroviral drugs and for assessing the efficacy of next-generation drugs...
Virological response to salvage therapy in HIV-infected persons carrying the reverse transcriptase K65R mutationAndrea Antinori
National Institute for Infectious Diseases L Spallanzani IRCCS, Roma, Italy
Antivir Ther 12:1175-83. 2007..The effect of the HIV reverse transcriptase K65R mutation on virological response to salvage therapy has not been clearly defined...
The amino acid Asn136 in HIV-1 reverse transcriptase (RT) maintains efficient association of both RT subunits and enables the rational design of novel RT inhibitorsJan Balzarini
Rega Institute for Medical Research, Katholieke Universiteit Leuven, Leuven, Belgium
Mol Pharmacol 68:49-60. 2005....
Novel human immunodeficiency virus type 1 protease mutations potentially involved in resistance to protease inhibitorsValentina Svicher
Department of Experimental Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy
Antimicrob Agents Chemother 49:2015-25. 2005....
The role of Thr139 in the human immunodeficiency virus type 1 reverse transcriptase sensitivity to (+)-calanolide AJoeri Auwerx
Rega Institute for Medical Research, Minderbroedersstraat 10, B 3000 Leuven, Belgium
Mol Pharmacol 68:652-9. 2005....
