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Your search keyword '"Gianserra L."' showing total 4 results
Start Over Author "Gianserra L." Topic 030104 developmental biology
4 results on '"Gianserra L."'

1. HCV NS3 sequencing as a reliable and clinically useful tool for the assessment of genotype and resistance mutations for clinical samples with different HCV-RNA levels

Author

Di Maio, V C, Cento, V, Di Paolo, D, Aragri, M, De Leonardis, F, Tontodonati, M, Micheli, V, Bellocchi, M C, Antonucci, F P, Bertoli, A, Lenci, I, Milana, M, Gianserra, L, Melis, M, Di Biagio, A, Sarrecchia, C, Sarmati, L, Landonio, S, Francioso, S, Lambiase, L, Nicolini, L A, Marenco, S, Nosotti, L, Giannelli, V, Siciliano, M, Romagnoli, D, Pellicelli, A, Vecchiet, J, Magni, C F, Babudieri, S, Mura, M S, Taliani, G, Mastroianni, C, Vespasiani-Gentilucci, U, Romano, M, Morisco, F, Gasbarrini, A, Vullo, V, Bruno, S, Baiguera, C, Pasquazzi, C, Tisone, G, Picciotto, A, Andreoni, M, Parruti, G, Rizzardini, G, Angelico, M, Perno, C F, Ceccherini-Silberstein, F, Collaborators (129) Mariani R, HCV Italian Resistance Network Study Group., Paoloni, M, Iapadre, N, Grimaldi, A, Menzaghi, B, Quirino, T, Bruzzone, B, De Maria, A, Nicolini, La, Viscoli, C, Casinelli, K, Monache, Md, Lichtner, M, Aghemo, A, Cerrone, M, Colombo, M, Monforte, Ad, Danieli, E, Donato, F, Gubertini, G, Magni, Cf, Mancon, A, Monico, S, Niero, F, Puoti, M, Russo, Ml, Alfieri, R, Gnocchi, M, Orro, A, Milanesi, L, Baldelli, E, Bertolotti, M, Borghi, V, Mussini, C, Brancaccio, G, Caporaso, N, Gaeta, Gb, Lembo, V, Calvaruso, V, Craxì, A, Di Marco, V, Mazzola, A, Petta, S, D'Amico, E, Cacciatore, P, Consorte, A, Palitti, Vp, Pieri, A, Polilli, E, Antenucci, F, Antonucci, Fp, Armenia, D, Baiocchi, L, Bellocchi, M, Biliotti, E, Biolato, M, Carioti, L, Cerasari, G, Cerva, C, Ciotti, M, D'Ambrosio, C, D'Ettorre, G, De Sanctis, A, Di Maio VC, Furlan, C, Gallo, P, Grieco, A, Grieco, S, Lattanzi, B, Malagnino, V, Manuelli, M, Merli, M, Miglioresi, L, Palazzo, D, Perno, Cf, Santopaolo, F, Santoro, Mm, Sforza, D, Sorbo, Mc, Spaziante, M, Svicher, V, Teti, E, Mangia, A, Maida, I, Mura, Ms, Falconi, L, Di Giammartino, D, Tarquini, P., Di Maio, V C, Cento, V, Di Paolo, D, Aragri, M, De Leonardis, F, Tontodonati, M, Micheli, V, Bellocchi, M C, Antonucci, F P, Bertoli, A, Lenci, I, Milana, M, Gianserra, L, Melis, M, Di Biagio, A, Sarrecchia, C, Sarmati, L, Landonio, S, Francioso, S, Lambiase, L, Nicolini, L A, Marenco, S, Nosotti, L, Giannelli, V, Siciliano, M, Romagnoli, D, Pellicelli, A, Vecchiet, J, Magni, C F, Babudieri, S, Mura, M S, Taliani, G, Mastroianni, C, Vespasiani-Gentilucci, U, Romano, M, Morisco, F, Gasbarrini, A, Vullo, V, Bruno, S, Baiguera, C, Pasquazzi, C, Tisone, G, Picciotto, A, Andreoni, M, Parruti, G, Rizzardini, G, Angelico, M, Perno, C F, Ceccherini-Silberstein, F, HCV Italian Resistance Network Study Group., Collaborators (129) Mariani R, Paoloni, M, Iapadre, N, Grimaldi, A, Menzaghi, B, Quirino, T, Bruzzone, B, De Maria, A, Nicolini, La, Viscoli, C, Casinelli, K, Monache, Md, Lichtner, M, Aghemo, A, Cerrone, M, Colombo, M, Monforte, Ad, Danieli, E, Donato, F, Gubertini, G, Magni, Cf, Mancon, A, Monico, S, Niero, F, Puoti, M, Russo, Ml, Alfieri, R, Gnocchi, M, Orro, A, Milanesi, L, Baldelli, E, Bertolotti, M, Borghi, V, Mussini, C, Brancaccio, G, Caporaso, N, Gaeta, Gb, Lembo, V, Calvaruso, V, Craxì, A, Di Marco, V, Mazzola, A, Petta, S, D'Amico, E, Cacciatore, P, Consorte, A, Palitti, Vp, Pieri, A, Polilli, E, Antenucci, F, Antonucci, Fp, Armenia, D, Baiocchi, L, Bellocchi, M, Biliotti, E, Biolato, M, Carioti, L, Cerasari, G, Cerva, C, Ciotti, M, D'Ambrosio, C, D'Ettorre, G, De Sanctis, A, Di Maio, Vc, Furlan, C, Gallo, P, Grieco, A, Grieco, S, Lattanzi, B, Malagnino, V, Manuelli, M, Merli, M, Miglioresi, L, Palazzo, D, Perno, Cf, Santopaolo, F, Santoro, Mm, Sforza, D, Sorbo, Mc, Spaziante, M, Svicher, V, Teti, E, Mangia, A, Maida, I, Mura, M, Falconi, L, Di Giammartino, D, Tarquini, P., Di Maio, V. C, Bellocchi, M. C, Antonucci, F. P, Nicolini, L. A, Magni, C. F, Mura, M. S, Vespasiani Gentilucci, U, Morisco, Filomena, Perno, C. F, Ceccherini Silberstein, F., Caporaso, Nicola, Di Maio, V., Cento, V., Di Paolo, D., Aragri, M., De Leonardis, F., Tontodonati, M., Micheli, V., Bellocchi, M., Antonucci, F., Bertoli, A., Lenci, I., Milana, M., Gianserra, L., Melis, M., Di Biagio, A., Sarrecchia, C., Sarmati, L., Landonio, S., Francioso, S., Lambiase, L., Nicolini, L., Marenco, S., Nosotti, L., Giannelli, V., Siciliano, M., Romagnoli, D., Pellicelli, A., Vecchiet, J., Magni, C., Babudieri, S., Mura, M., Taliani, G., Mastroianni, C., Vespasiani-Gentilucci, U., Romano, M., Morisco, F., Gasbarrini, A., Vullo, V., Bruno, S., Baiguera, C., Pasquazzi, C., Tisone, G., Picciotto, A., Andreoni, M., Parruti, G., Rizzardini, G., Angelico, M., Perno, C., Ceccherini-Silberstein, F., Mariani, R., Paoloni, M., Iapadre, N., Grimaldi, A., Menzaghi, B., Quirino, T., Bruzzone, B., De Maria, A., Viscoli, C., Casinelli, K., Delle Monache, M., Lichtner, M., Aghemo, A., Cerrone, M., Colombo, M., D'Arminio Monforte, A., Danieli, E., Donato, F., Gubertini, G., Mancon, A., Monico, S., Niero, F., Puoti, M., Russo, M., Alfieri, R., Gnocchi, M., Orro, A., Milanesi, L., Baldelli, E., Bertolotti, M., Borghi, V., Mussini, C., Brancaccio, G., Caporaso, N., Gaeta, G., Lembo, V., Calvaruso, V., Craxã­, A., DI MARCO, V., Mazzola, A., Petta, S., D'Amico, E., Cacciatore, P., Consorte, A., Pace Palitti, V., Pieri, A., Polilli, E., Antenucci, F., Armenia, D., Baiocchi, L., Biliotti, E., Biolato, M., Carioti, L., Cerasari, G., Cerva, C., Ciotti, M., D'Ambrosio, C., D'Ettorre, G., De Sanctis, A., Furlan, C., Gallo, P., Grieco, A., Grieco, S., Lattanzi, B., Malagnino, V., Manuelli, M., Merli, M., Miglioresi, L., Palazzo, D., Santopaolo, F., Santoro, M., Sforza, D., Sorbo, M., Spaziante, M., Svicher, V., Teti, E., Mangia, A., Maida, I., Falconi, L., and Di Giammartino, D.

Subjects
0301 basic medicine, ns3, Genotyping Techniques, viruses, Drug Resistance, Hepacivirus, Viral Nonstructural Proteins, medicine.disease_cause, Gastroenterology, Telaprevir, chemistry.chemical_compound, genotype, genotyping techniques, hepacivirus, hepatitis C, humans, RNA viral, retrospective studies, sequence analysis, DNA, viral nonstructural proteins, drug resistance, viral, mutation, pharmacology, infectious diseases, 0302 clinical medicine, Retrospective Studie, Genotype, Pharmacology (medical), Viral, Hepatitis C, Humans, RNA, Viral, Retrospective Studies, Sequence Analysis, DNA, Drug Resistance, Viral, Mutation, Proteolytic enzymes, virus diseases, Settore MED/07 - Microbiologia e Microbiologia Clinica, hcv-rna levels, Infectious Diseases, HCV-RNA, 030211 gastroenterology & hepatology, Sequence Analysis, medicine.drug, Human, Microbiology (medical), medicine.medical_specialty, Hepatitis C virus, Concordance, Settore MED/12 - GASTROENTEROLOGIA, Pharmacology, Biology, 03 medical and health sciences, Boceprevir, Internal medicine, medicine, hcv, Genotyping, Hepaciviru, Viral Nonstructural Protein, Settore MED/09 - MEDICINA INTERNA, Virology, digestive system diseases, 030104 developmental biology, chemistry, Sequence Analysi, RNA, Genotyping Technique
Abstract

OBJECTIVES: This study aims to evaluate the reliability and clinical utility of NS3 sequencing in hepatitis C virus (HCV) 1-infected patients who were candidates to start a PI-containing regimen. METHODS: NS3 protease sequencing was performed by in-house-developed HCV-1 subtype-specific protocols. Phylogenetic analysis was used to test sequencing reliability and concordance with previous genotype/subtype assignment by commercial genotyping assays. RESULTS: Five hundred and sixty-seven HCV plasma samples with quantifiable HCV-RNA from 326 HCV-infected patients were collected between 2011 and 2014. Overall, the success rate of NS3 sequencing was 88.9%. The success rate between the two subtype protocols (HCV-1a/HCV-1b) was similarly high for samples with HCV-RNA >3 log IU/mL (>92% success rate), while it was slightly lower for HCV-1a samples with HCV-RNA ≤3 log IU/mL compared with HCV-1b samples. Phylogenetic analysis confirmed the genotype/subtype given by commercial genotyping assays in 92.9% (303/326) of cases analysed. In the remaining 23 cases (7.1%), 1 was HCV-1g (previously defined as subtype 1a), 1 was HCV-4d (previously defined as genotype 1b) and 1 was HCV-1b (previously defined as genotype 2a/2c). In the other cases, NS3 sequencing precisely resolved the either previous undetermined/discordant subtype 1 or double genotype/subtype assignment by commercial genotyping assays. Resistance-associated variants (RAVs) to PI were detected in 31.0% of samples. This prevalence changed according to PI experience (17.1% in PI-naive patients versus 79.2% in boceprevir/telaprevir/simeprevir-failing patients). Among 96 patients with available virological outcome following boceprevir/telaprevir treatment, a trend of association between baseline NS3 RAVs and virological failure was observed (particularly for HCV-1a-infected patients: 3/21 failing patients versus 0/22 achieving sustained virological response; P = 0.11). CONCLUSIONS: HCV-NS3 sequencing provides reliable results and at the same time gives two clinically relevant pieces of information: a correct subtype/genotype assignment and the detection of variants that may interfere with the efficacy of PI.

Published
2016
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2. Improvement of ALT decay kinetics by all-oral HCV treatment: Role of NS5A inhibitors and differences with IFN-based regimens

Author

Carlo Magni, Barbara Menzaghi, Valeria Cento, Francesca Ceccherini-Silberstein, Giustino Parruti, Antonio Di Biagio, Velia Chiara Di Maio, Sergio Babudieri, Antonella d'Arminio Monforte, Loredana Sarmati, Laura Gianserra, Paolo Casalino, Tiziana Quirino, Elena Danieli, Jeremie Guedj, Dante Romagnoli, Ilaria Lenci, Sergio Bernardini, Laura Ambra Nicolini, Elisa Biliotti, Matteo Bolis, M. Melis, Maddalena Cerrone, Massimo Puoti, Valeria Micheli, Carlo Federico Perno, Vincenza Calvaruso, Thi Huyen Tram Nguyen, Ennio Polilli, Giuliano Rizzardini, Massimo Siciliano, Massimo Andreoni, Mario Angelico, Francesco Paolo Antonucci, Domenico Di Carlo, Caterina Pasquazzi, Antonio Craxì, Daniele Di Paolo, Elisabetta Teti, Gloria Taliani, Roberta Alfieri, Cento, V, Nguyen, T, Di Carlo, D, Biliotti, E, Gianserra, L, Lenci, I, Di Paolo, D, Calvaruso, V, Teti, E, Cerrone, M, Romagnoli, D, Melis, M, Danieli, E, Menzaghi, B, Polilli, E, Siciliano, M, Nicolini, L, Di Biagio, A, Magni, C, Bolis, M, Antonucci, F, Di Maio, V, Alfieri, R, Sarmati, L, Casalino, P, Bernardini, S, Micheli, V, Rizzardini, G, Parruti, G, Quirino, T, Puoti, M, Babudieri, S, Monforte, A, Andreoni, M, Craxì, A, Angelico, M, Pasquazzi, C, Taliani, G, Guedj, J, Perno, C, Ceccherini-Silberstein, F, Cento, V., Nguyen, T., Di Carlo, D., Biliotti, E., Gianserra, L., Lenci, I., Di Paolo, D., Calvaruso, V., Teti, E., Cerrone, M., Romagnoli, D., Melis, M., Danieli, E., Menzaghi, B., Polilli, E., Siciliano, M., Nicolini, L., Di Biagio, A., Magni, C., Bolis, M., Antonucci, F., Di Maio, V., Alfieri, R., Sarmati, L., Casalino, P., Bernardini, S., Micheli, V., Rizzardini, G., Parruti, G., Quirino, T., Puoti, M., Babudieri, S., Monforte, A., Andreoni, M., Craxi, A., Angelico, M., Pasquazzi, C., Taliani, G., Guedj, J., Perno, C., and Ceccherini-Silberstein, F.

Subjects
Genetics and Molecular Biology (all), Simeprevir, Male, Hepacivirus, Pharmacology, Biochemistry, Stiffness, 0302 clinical medicine, Animal Cells, Medicine, Amino Acids, lcsh:Science, Alanine, Organic Compounds, Liver Diseases, 3. Good health, Cirrhosis, Physical Sciences, Administration, Interferon, 030211 gastroenterology & hepatology, Drug Therapy, Combination, Cellular Types, Oligopeptides, Human, Oral, Materials Science, Gastroenterology and Hepatology, Microbiology, Antiviral Agents, 03 medical and health sciences, Drug Therapy, Humans, Aged, Kinetic, Hepaciviru, Biochemistry, Genetics and Molecular Biology (all), Mathematical Modeling, lcsh:R, Chemical Compounds, Biology and Life Sciences, Proteins, medicine.disease, digestive system diseases, Administration, Oral, Alanine Transaminase, Female, Hepatitis C, Interferons, Kinetics, Middle Aged, RNA, Viral, Ribavirin, Sofosbuvir, Treatment Outcome, Viral Nonstructural Proteins, Agricultural and Biological Sciences (all), 030104 developmental biology, chemistry, Aliphatic Amino Acids, lcsh:Q, 0301 basic medicine, lcsh:Medicine, Medicine (all), Telaprevir, chemistry.chemical_compound, Medicine and Health Sciences, Viral, Multidisciplinary, biology, Antimicrobials, Simulation and Modeling, Drugs, Antivirals, Chemistry, Liver, Combination, Oligopeptide, Anatomy, medicine.drug, Research Article, Settore MED/17 - Malattie Infettive, General Science & Technology, Material Properties, Research and Analysis Methods, Microbial Control, Virology, Mechanical Properties, NS5A, Antiviral Agent, business.industry, HCV DAA ALT, Viral Nonstructural Protein, Organic Chemistry, Cell Biology, biology.organism_classification, Alanine transaminase, biology.protein, Hepatocytes, RNA, business
Abstract

Background Intracellular HCV-RNA reduction is a proposed mechanism of action of direct-acting antivirals (DAAs), alternative to hepatocytes elimination by pegylated-interferon plus ribavirin (PR). We modeled ALT and HCV-RNA kinetics in cirrhotic patients treated with currently-used all-DAA combinations to evaluate their mode of action and cytotoxicity compared with telaprevir (TVR)+PR. Study design Mathematical modeling of ALT and HCV-RNA kinetics was performed in 111 HCV-1 cirrhotic patients, 81 treated with all-DAA regimens and 30 with TVR+PR. Kinetic-models and Cox-analysis were used to assess determinants of ALT-decay and normalization. Results HCV-RNA kinetics was biphasic, reflecting a mean effectiveness in blocking viral production >99.8%. The first-phase of viral-decline was faster in patients receiving NS5A-inhibitors compared to TVR+PR or sofosbuvir+simeprevir (p

Published
2017

3. Multiclass HCV resistance to direct-acting antiviral failure in real-life patients advocates for tailored second-line therapies

Author

Di Maio, Velia C., Cento, Valeria, Lenci, Ilaria, Aragri, Marianna, Rossi, Piera, Barbaliscia, Silvia, Melis, Michela, Verucchi, Gabriella, Magni, Carlo F., Teti, Elisabetta, Bertoli, Ada, Antonucci, Francescopaolo, Bellocchi, Maria C., Micheli, Valeria, Masetti, Chiara, Landonio, Simona, Francioso, Simona, Santopaolo, Francesco, Pellicelli, Adriano M., Calvaruso, Vincenza, Gianserra, Laura, Siciliano, Massimo, Romagnoli, Dante, Cozzolongo, Raffaele, Grieco, Antonio, Vecchiet, Jacopo, Morisco, Filomena, Merli, Manuela, Brancaccio, Giuseppina, Di Biagio, Antonio, Loggi, Elisabetta, Mastroianni, Claudio Maria, Pace Palitti, Valeria, Tarquini, Pierluigi, Puoti, Massimo, Taliani, Gloria, Sarmati, Loredana, Picciotto, Antonino, Vullo, Vincenzo, Caporaso, Nicola, Paoloni, Maurizio, Pasquazzi, Caterina, Rizzardini, Giuliano, Parruti, Giustino, Craxì, Antonio, Babudieri, Sergio, Andreoni, Massimo, Angelico, Mario, Perno, Carlo F., Ceccherini Silberstein, Francesca, Mariani, R., Iapadre, N., Grimaldi, A., Cozzolongo, R., Andreone, P., Verucchi, G., Menzaghi, B., Quirino, T., Pisani, V., Torti, MARIA CHIARA, Vecchiet, J., Bruzzone, B., De Maria, A., Marenco, S., Nicolini, L. A., Viscoli, C., Casinelli, K., Delle Monache, M., Lichtner, Miriam, Aghemo, A., Boccaccio, V., Bruno, S., Cerrone, M., Colombo, M., D'Arminio Monforte, A., Danieli, E., Donato, F., Gubertini, G., Lleo, A., Magni, C. F., Mancon, A., Monico, S., Niero, F., Russo, M. L., Gnocchi, M., Orro, A., Milanesi, L., Baldelli, E., Bertolotti, M., Borghi, V., Mussini, C., Brancaccio, G., Gaeta, G. B., Lembo, V., Sangiovanni, V., Di Marco, V., Mazzola, A., Petta, S., D'Amico, E., Cacciatore, P., Consorte, A., Pieri, A., Polilli, E., Sozio, F., Antenucci, F., Aragri, M., Baiocchi, L., Barbaliscia, S., Biliotti, Elisa, Biolato, M., Carioti, L., Ceccherini Silberstein, F., Cerasari, G., Cerva, C., Ciotti, M., D'Ambrosio, C., D'Ettorre, G., De Leonardis, F., De Sanctis, A., Di Maio, V. C., Di Paolo, D., Furlan, Caterina, Gallo, P., Gasbarrini, A., Giannelli, V., Grieco, S., Lambiase, L., Lattanzi, B., Lenci, I., Lula, R., Malagnino, V., Manuelli, M., Miglioresi, L., Milana, M., Moretti, A., Nosotti, L., Palazzo, Donatella, Pellicelli, A., Romano, M., Sarrecchia, C., Sforza, D., Sorbo, M. C., Spaziante, M., Svicher, V., Tisone, G., Vespasiani Gentilucci, U., D'Adamo, G., Mangia, A., Maida, I., Mura, M. S., Falconi, L., Di Giammartino, D., Di Maio, V., Cento, V., Lenci, I., Aragri, M., Rossi, P., Barbaliscia, S., Melis, M., Verucchi, G., Magni, C., Teti, E., Bertoli, A., Antonucci, F., Bellocchi, M., Micheli, V., Masetti, C., Landonio, S., Francioso, S., Santopaolo, F., Pellicelli, A., Calvaruso, V., Gianserra, L., Siciliano, M., Romagnoli, D., Cozzolongo, R., Grieco, A., Vecchiet, J., Morisco, F., Merli, M., Brancaccio, G., Di Biagio, A., Loggi, E., Mastroianni, C., Pace Palitti, V., Tarquini, P., Puoti, M., Taliani, G., Sarmati, L., Picciotto, A., Vullo, V., Caporaso, N., Paoloni, M., Pasquazzi, C., Rizzardini, G., Parruti, G., Craxã¬, A., Babudieri, S., Andreoni, M., Angelico, M., Perno, C., Ceccherini-Silberstein, F., Mariani, R., Iapadre, N., Grimaldi, A., Andreone, P., Menzaghi, B., Quirino, T., Pisani, V., Torti, C., Bruzzone, B., De Maria, A., Marenco, S., Nicolini, L., Viscoli, C., Casinelli, K., Delle Monache, M., Lichtner, M., Aghemo, A., Boccaccio, V., Bruno, S., Cerrone, M., Colombo, M., D'Arminio Monforte, A., Danieli, E., Donato, F., Gubertini, G., Lleo, A., Mancon, A., Monico, S., Niero, F., Russo, M., Gnocchi, M., Orro, A., Milanesi, L., Baldelli, E., Bertolotti, M., Borghi, V., Mussini, C., Gaeta, G., Lembo, V., Sangiovanni, V., DI MARCO, V., Mazzola, A., Petta, S., D'Amico, E., Cacciatore, P., Consorte, A., Pieri, A., Polilli, E., Sozio, F., Antenucci, F., Baiocchi, L., Biliotti, E., Biolato, M., Carioti, L., Cerasari, G., Cerva, C., Ciotti, M., D'Ambrosio, C., D'Ettorre, G., De Leonardis, F., De Sanctis, A., Di Paolo, D., Furlan, C., Gallo, P., Gasbarrini, A., Giannelli, V., Grieco, S., Lambiase, L., Lattanzi, B., Lula, R., Malagnino, V., Manuelli, M., Miglioresi, L., Milana, M., Moretti, A., Nosotti, L., Palazzo, D., Romano, M., Sarrecchia, C., Sforza, D., Sorbo, M., Spaziante, M., Svicher, V., Tisone, G., Vespasiani-Gentilucci, U., D'Adamo, G., Mangia, A., Maida, I., Mura, M., Falconi, L., Di Giammartino, D., Di Maio, V, Cento, V, Lenci, I, Aragri, M, Rossi, P, Barbaliscia, S, Melis, M, Verucchi, G, Magni, C, Teti, E, Bertoli, A, Antonucci, F, Bellocchi, M, Micheli, V, Masetti, C, Landonio, S, Francioso, S, Santopaolo, F, Pellicelli, A, Calvaruso, V, Gianserra, L, Siciliano, M, Romagnoli, D, Cozzolongo, R, Grieco, A, Morisco, F, Merli, M, Brancaccio, G, Di Biagio, A, Loggi, E, Mastroianni, C, Pace Palitti, V, Tarquini, P, Puoti, M, Taliani, G, Sarmati, L, Picciotto, A, Vullo, V, Caporaso, N, Paoloni, M, Pasquazzi, C, Rizzardini, G, Parruti, G, Craxì, A, Babudieri, S, Andreoni, M, Angelico, M, Perno, C, Ceccherini-Silberstein, F, Velia C. Di Maio, Valeria Cento, Ilaria Lenci, Marianna Aragri, Piera Rossi, Silvia Barbaliscia, Michela Meli, Gabriella Verucchi, Carlo F. Magni, Elisabetta Teti, Ada Bertoli, Francesco Paolo Antonucci, Maria C. Bellocchi, Valeria Micheli, Chiara Masetti, Simona Landonio, Simona Francioso, Francesco Santopaolo, Adriano M. Pellicelli, Vincenza Calvaruso, Laura Gianserra, Massimo Siciliano, Dante Romagnoli, Raffaele Cozzolongo, Antonio Grieco, Jacopo Vecchiet, Filomena Morisco, Manuela Merli, Giuseppina Brancaccio, Antonio Di Biagio, Elisabetta Loggi, Claudio M. Mastroianni, Valeria Pace Palitti, Pierluigi Tarquini, Massimo Puoti, Gloria Taliani, Loredana Sarmati, Antonino Picciotto, Vincenzo Vullo, Nicola Caporaso, Maurizio Paoloni, Caterina Pasquazzi, Giuliano Rizzardini, Giustino Parruti, Antonio Craxì, Sergio Babudieri, Massimo Andreoni, Mario Angelico, Carlo F. Perno, Francesca Ceccherini-Silberstein, for the HCV Italian Resistance Network Study Group: [.., P. Andreone, E. Loggi, G. Verucchi, ], Di Maio, Velia C., Cento, Valeria, Lenci, Ilaria, Aragri, Marianna, Rossi, Piera, Barbaliscia, Silvia, Melis, Michela, Verucchi, Gabriella, Magni, Carlo F., Teti, Elisabetta, Bertoli, Ada, Antonucci, Francescopaolo, Bellocchi, Maria C., Micheli, Valeria, Masetti, Chiara, Landonio, Simona, Francioso, Simona, Santopaolo, Francesco, Pellicelli, Adriano M., Calvaruso, Vincenza, Gianserra, Laura, Siciliano, Massimo, Romagnoli, Dante, Cozzolongo, Raffaele, Grieco, Antonio, Vecchiet, Jacopo, Morisco, Filomena, Merli, Manuela, Brancaccio, Giuseppina, Di Biagio, Antonio, Loggi, Elisabetta, Mastroianni, Claudio M., Pace Palitti, Valeria, Tarquini, Pierluigi, Puoti, Massimo, Taliani, Gloria, Sarmati, Loredana, Picciotto, Antonino, Vullo, Vincenzo, Caporaso, Nicola, Paoloni, Maurizio, Pasquazzi, Caterina, Rizzardini, Giuliano, Parruti, Giustino, Craxã¬, Antonio, Babudieri, Sergio, Andreoni, Massimo, Angelico, Mario, Perno, Carlo F., Ceccherini-Silberstein, Francesca, Nicolini, L. A., Magni, C. F., Russo, M. L., Gaeta, G. B., Di Marco, V., Di Maio, V. C., Sorbo, M. C., Mura, M. S., Di Maio, Velia C, Magni, Carlo F, Bellocchi, Maria C, Pellicelli, Adriano M, Mastroianni, Claudio M, Craxì, Antonio, Perno, Carlo F, and Ceccherini Silberstein, Francesca

Subjects
Male, 0301 basic medicine, hepatitis C virus, Sustained Virologic Response, Sofosbuvir, Hepacivirus, Drug Resistance, resistance-associated substitutions, Viral Nonstructural Proteins, VARIANTS, NS5A, medicine.disease_cause, Gastroenterology, chemistry.chemical_compound, 0302 clinical medicine, Recurrence, INFECTION, antiviral therapy, Medicine, hepatitis C viru, Viral, Treatment Failure, Chronic, direct-acting antivirals, resistance test, hepatology, biology, GENOTYPE 1, virus diseases, Middle Aged, Settore MED/07 - Microbiologia e Microbiologia Clinica, Hepatitis C, Italy, Combination, Interferon, Drug Therapy, Combination, Female, 030211 gastroenterology & hepatology, Author Keywords:antiviral therapy, RIBAVIRIN, Sequence Analysis, Human, medicine.drug, medicine.medical_specialty, Daclatasvir, Genotype, Hepatitis C virus, Antiviral Agents, LONG-TERM PERSISTENCE, DACLATASVIR, 03 medical and health sciences, Drug Therapy, Aged, Drug Resistance, Viral, Hepatitis C, Chronic, Humans, Interferons, Mutation, Ribavirin, Sequence Analysis, DNA, Hepatology, TREATMENT-NAIVE, Internal medicine, Antiviral Agent, resistance-associated substitution, direct-acting antiviral, Hepaciviru, resistance test KeyWords Plus:HEPATITIS-C VIRUS, business.industry, Viral Nonstructural Protein, DNA, biology.organism_classification, Clinical trial, 030104 developmental biology, SOFOSBUVIR, chemistry, Sequence Analysi, Immunology, business
Abstract

Background & Aims: Despite the excellent efficacy of direct-acting antivirals (DAA) reported in clinical trials, virological failures can occur, often associated with the development of resistance-associated substitutions (RASs). This study aimed to characterize the presence of clinically relevant RASs to all classes in real-life DAA failures. Methods: Of the 200 virological failures that were analyzed in 197 DAA-treated patients, 89 with pegylated-interferon+ribavirin (PegIFN+RBV) and 111 without (HCV-1a/1b/1g/2/3/4=58/83/1/6/24/25; 56.8% treatment experienced; 65.5% cirrhotic) were observed. Sanger sequencing of NS3/NS5A/NS5B was performed by home-made protocols, at failure (N= 200) and whenever possible at baseline (N= 70). Results: The majority of the virological failures were relapsers (57.0%), 22.5% breakthroughs, 20.5% non-responders. RAS prevalence varied according to IFN/RBV use, DAA class, failure type and HCV genotype/subtype. It was 73.0% in IFN group vs 49.5% in IFN free, with the highest prevalence of NS5A-RASs (96.1%), compared to NS3-RASs (75.9% with IFN, 70.5% without) and NS5B-RASs (66.6% with IFN, 20.4% without, in sofosbuvir failures). In the IFN-free group, RASs were higher in breakthrough/non-responders than in relapsers (90.5% vs 40.0%, P= 2 DAA classes showed multiclass resistance, including 11/11 NS3+NS5A failures. Furthermore, 20.0% of patients had baseline-RASs, which were always confirmed at failure. Conclusions: In our failure setting, RAS prevalence was remarkably high in all genes, with a partial exception for NS5B, whose limited resistance is still higher than previously reported. This multiclass resistance advocates for HCV resistance testing at failure, in all three genes for the best second-line therapeutic tailoring.

Published
2017
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4. Prevalence of Single and Multiple Natural NS3, NS5A and NS5B Resistance-Associated Substitutions in Hepatitis C Virus Genotypes 1-4 in Italy

Author

Bertoli, Ada, Sorbo, Maria Chiara, Aragri, Marianna, Lenci, Ilaria, Teti, Elisabetta, Polilli, Ennio, Di Maio, Velia Chiara, Gianserra, Laura, Biliotti, Elisa, Masetti, Chiara, Magni, Carlo F., Babudieri, Sergio, Nicolini, Laura A., Milana, Martina, Cacciatore, Pierluigi, Sarmati, Loredana, Pellicelli, Adriano, Paolucci, Stefania, Craxì, Antonio, Morisco, Filomena, Palitti, Valeria Pace, Siciliano, Massimo, Coppola, Nicola, Iapadre, Nerio, Puoti, Massimo, Rizzardini, Giuliano, Taliani, Gloria, Pasquazzi, Caterina, Andreoni, Massimo, Parruti, Giustino, Angelico, Mario, Perno, Carlo Federico, Cento, Valeria, Ceccherini-Silberstein, Francesca, Andreone, Pietro, Baldanti, Fausto, Barbarini, Giorgio, Boccaccio, Vincenzo, Boglione, Lucio, Bolis, Matteo, Bonora, Stefano, Borghi, Vanni, Brancaccio, Giuseppina, Bruno, Savino, Bruzzone, Bianca, Calvaruso, Vincenza, Caporaso, Nicola, Ciaccio, Antonio, Ciancio, Alessia, Colombatto, Piero, Cozzolongo, Raffaele, D'Ambrosio, Cecilia, D'Ettorre, Gabriella, De Leonardis, Francesco, De Luca, Andrea, Di Biagio, Antonio, Di Perri, Giovanni, Francioso, Simona, Gaeta, Giovanni Battista, Gasbarrini, Antonio, Ghisetti, Valeria, Giorgini, Alessia, Grieco, Antonio, Gubertini, Guido, Gulminetti, Roberto, Lambiase, Lara, Landonio, Simona, Lichtner, Miriam, Maida, Ivana, Marenco, Simona, Marinaro, Letizia, Maserati, Renato, Melis, Michela, Menzaghi, Barbara, Meregalli, Elisa, Micheli, Valeria, Niero, Fosca, Paoloni, Maurizio, Pieri, Alessandro, Rendina, Maria, Romagnoli, Dante, Rossetti, Barbara, Ruggiero, Tina, Sangiovanni, Vincenzo, Starace, Mario, Sticchi, Laura, Tarquini, Pierluigi, Toniutto, Pierluigi, Vullo, Vincenzo, Zazzi, Maurizio, HCV Virology Italian Resistance Network, Bertoli A1, Sorbo MC1, Aragri M1, Lenci I2, Teti E3, Polilli E4, Di Maio VC1, Gianserra L5, Biliotti E6, Masetti C2, Magni CF7, Babudieri S8, Nicolini LA9, Milana M2, Cacciatore P4, Sarmati L3, Pellicelli A10, Paolucci S11, Craxì A, Morisco F13, Palitti VP14, Siciliano M15, Coppola N16, Iapadre N17, Puoti M18, Rizzardini G7, Taliani G6, Pasquazzi C5, Andreoni M3, Parruti G4, Angelico M2, Perno CF19, Cento V20, Ceccherini-Silberstein F1, HCV Virology Italian Resistance Network (VIRONET-C)., Bertoli, Ada, Sorbo, Maria Chiara, Aragri, Marianna, Lenci, Ilaria, Teti, Elisabetta, Polilli, Ennio, Di Maio, Velia Chiara, Gianserra, Laura, Biliotti, Elisa, Masetti, Chiara, Magni, Carlo F., Babudieri, Sergio, Nicolini, Laura A., Milana, Martina, Cacciatore, Pierluigi, Sarmati, Loredana, Pellicelli, Adriano, Paolucci, Stefania, Craxì, Antonio, Morisco, Filomena, Palitti, Valeria Pace, Siciliano, Massimo, Coppola, Nicola, Iapadre, Nerio, Puoti, Massimo, Rizzardini, Giuliano, Taliani, Gloria, Pasquazzi, Caterina, Andreoni, Massimo, Parruti, Giustino, Angelico, Mario, Perno, Carlo Federico, Cento, Valeria, Ceccherini-Silberstein, Francesca, Andreone, Pietro, Baldanti, Fausto, Barbarini, Giorgio, Boccaccio, Vincenzo, Boglione, Lucio, Bolis, Matteo, Bonora, Stefano, Borghi, Vanni, Brancaccio, Giuseppina, Bruno, Savino, Bruzzone, Bianca, Calvaruso, Vincenza, Caporaso, Nicola, Ciaccio, Antonio, Ciancio, Alessia, Colombatto, Piero, Cozzolongo, Raffaele, D'Ambrosio, Cecilia, D'Ettorre, Gabriella, De Leonardis, Francesco, De Luca, Andrea, Di Biagio, Antonio, Di Perri, Giovanni, Francioso, Simona, Gaeta, Giovanni Battista, Gasbarrini, Antonio, Ghisetti, Valeria, Giorgini, Alessia, Grieco, Antonio, Gubertini, Guido, Gulminetti, Roberto, Lambiase, Lara, Landonio, Simona, Lichtner, Miriam, Maida, Ivana, Marenco, Simona, Marinaro, Letizia, Maserati, Renato, Melis, Michela, Menzaghi, Barbara, Meregalli, Elisa, Micheli, Valeria, Niero, Fosca, Paoloni, Maurizio, Pieri, Alessandro, Rendina, Maria, Romagnoli, Dante, Rossetti, Barbara, Ruggiero, Tina, Sangiovanni, Vincenzo, Starace, Mario, Sticchi, Laura, Tarquini, Pierluigi, Toniutto, Pierluigi, Vullo, Vincenzo, Zazzi, Maurizio, Bertoli, A, Sorbo, M, Aragri, M, Lenci, I, Teti, E, Polilli, E, Di Maio, V, Gianserra, L, Biliotti, E, Masetti, C, Magni, C, Babudieri, S, Nicolini, L, Milana, M, Cacciatore, P, Sarmati, L, Pellicelli, A, Paolucci, S, Craxi, A, Morisco, F, Palitti, V, Siciliano, M, Coppola, N, Iapadre, N, Puoti, M, Rizzardini, G, Taliani, G, Pasquazzi, C, Andreoni, M, Parruti, G, Angelico, M, Perno, C, Cento, V, Ceccherini-Silberstein, F, Andreone, P, Baldanti, F, Barbarini, G, Boccaccio, V, Boglione, L, Bolis, M, Bonora, S, Borghi, V, Brancaccio, G, Bruno, S, Bruzzone, B, Calvaruso, V, Caporaso, N, Ciaccio, A, Ciancio, A, Colombatto, P, Cozzolongo, R, D'Ambrosio, C, D'Ettorre, G, De Leonardis, F, De Luca, A, Di Biagio, A, Di Perri, G, Francioso, S, Gaeta, G, Gasbarrini, A, Ghisetti, V, Giorgini, A, Grieco, A, Gubertini, G, Gulminetti, R, Lambiase, L, Landonio, S, Lichtner, M, Maida, I, Marenco, S, Marinaro, L, Maserati, R, Melis, M, Menzaghi, B, Meregalli, E, Micheli, V, Niero, F, Paoloni, M, Pieri, A, Rendina, M, Romagnoli, D, Rossetti, B, Ruggiero, T, Sangiovanni, V, Starace, M, Sticchi, L, Tarquini, P, Toniutto, P, Vullo, V, Zazzi, M, Sorbo, Mc, Di Maio, Vc, Magni, Cf, Nicolini, La, Craxì, A, Palitti, Vp, Perno, Cf, Gaeta, Gb, and Zazzi, M.

Subjects
Male, 0301 basic medicine, Sofosbuvir, Hepacivirus, Drug Resistance, lcsh:Medicine, Viral Nonstructural Proteins, medicine.disease_cause, Gastroenterology, Hepatitis C Virus, HCV resistance-test, chemistry.chemical_compound, 0302 clinical medicine, Genotype, Prevalence, Viral, lcsh:Science, Multidisciplinary, biology, Hepatitis C, Middle Aged, Settore MED/07 - Microbiologia e Microbiologia Clinica, Italy, Cohort, HCV, Female, 030211 gastroenterology & hepatology, medicine.drug, Adult, medicine.medical_specialty, HCV RAS, Hepatitis C virus, 03 medical and health sciences, Internal medicine, Drug Resistance, Viral, medicine, Humans, Aged, NS5A, NS5B, business.industry, lcsh:R, Hepatitis C Virus, HCV resistance-test, biology.organism_classification, medicine.disease, 030104 developmental biology, chemistry, lcsh:Q, business
Abstract

Natural resistance-associated substitutions (RASs) are reported with highly variable prevalence across different HCV genotypes (GTs). Frequency of natural RASs in a large Italian real-life cohort of patients infected with the 4 main HCV-GTs was investigated. NS3, NS5A and NS5B sequences were analysed in 1445 HCV-infected DAA-naïve patients. Sanger-sequencing was performed by home-made protocols on 464 GT1a, 585 GT1b, 92 GT2c, 199 GT3a, 16 GT4a and 99 GT4d samples. Overall, 20.7% (301/1455) of patients showed natural RASs, and the prevalence of multiclass-resistance was 7.3% (29/372 patients analysed). NS3-RASs were particularly common in GT1a and GT1b (45.2-10.8%, respectively), mainly due to 80K presence in GT1a (17%). Almost all GTs showed high prevalence of NS5A-RASs (range: 10.2–45.4%), and especially of 93H (5.1%). NS5A-RASs with fold-change >100x were detected in 6.8% GT1a (30H/R-31M-93C/H), 10.3% GT1b (31V-93H), 28.4% GT2c (28C-31M-93H), 8.5% GT3a (30K-93H), 45.5% GT4a (28M-30R-93H) and 3.8% GT4d (28V-30S-93H). Sofosbuvir RAS 282T was never detected, while the 159F and 316N RASs were found in GT1b (13.4–19.1%, respectively). Natural RASs are common in Italian patients infected with HCV-GTs 1–4. High prevalence of clinically-relevant RASs (such as Y93H) supports the appropriateness of HCV resistance-test to properly guide DAA-based therapy.

Published
2018

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