1
|
Milošević I, Beronja B, Filipović A, Mitrović N, Simić J, Knežević N, Ranin J, Todorović N, Stevanović O, Radovanović-Spurnić A, Katanić N, Hristović D, Nikolić N. HCV Treatment Outcomes in PWID: Impact of Addiction History on SVR12. Microorganisms 2024; 12:2554. [PMID: 39770757 PMCID: PMC11677223 DOI: 10.3390/microorganisms12122554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2024] [Revised: 12/05/2024] [Accepted: 12/10/2024] [Indexed: 01/11/2025] Open
Abstract
People who inject drugs (PWIDs) experience high rates of hepatitis C virus (HCV) infection, primarily due to needle sharing and limited healthcare access, resulting in a disproportionate disease burden within this population. This prospective study evaluated treatment outcomes in 432 adult patients with chronic hepatitis C (CHC) treated with direct-acting antivirals (DAAs) at the University Clinical Center of Serbia. Patients were categorized into two groups based on a history of drug addiction: PWIDs (163, 37.7%) and non-PWIDs (269, 62.3%). The PWID group was further categorized into subpopulations of problematic PWIDs (39, 23.9%), ex-PWIDs (124, 76.1%), and PWIDs on OST (96, 58.9%). The PWID group demonstrated significantly lower treatment adherence, with an intention-to-treat (ITT) rate of 82.8%, compared to 96.3% in the control group (p < 0.001). In contrast, no significant differences were observed in per-protocol (PP) outcomes between the two groups. Additionally, PWIDs were significantly younger (p < 0.001) and had higher rates of psychiatric disorders (p < 0.001), alcohol abuse (p < 0.001), and HCV genotype 1a (p < 0.001). Advanced fibrosis was predictor of PP treatment failure among PWIDs, while mood disorders and alcohol use disorder were associated with interruptions before the scheduled completion time. For non-PWIDs, older age and advanced fibrosis emerged as key predictors of PP treatment failure. The loss to follow-up was most commonly observed in the problematic PWID subgroup (p = 0.001). These findings highlight the importance of addressing barriers in PWIDs through integrated care strategies that concurrently manage addiction and HCV.
Collapse
Affiliation(s)
- Ivana Milošević
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| | - Branko Beronja
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| | - Ana Filipović
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
| | - Nikola Mitrović
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| | - Jelena Simić
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
| | - Nataša Knežević
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
| | - Jovana Ranin
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
| | - Nevena Todorović
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
| | - Olja Stevanović
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| | - Aleksandra Radovanović-Spurnić
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| | - Nataša Katanić
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Department of Infective Diseases, Faculty of Medicine, University of Pristina Temporarily Settled in Kosovska Mitrovica, 38220 Kosovska Mitrovica, Serbia
| | - Dejan Hristović
- Clinic for Infectious and Tropical Diseases, Military Academy of the University of Defence, Crnotravska 17, 11000 Belgrade, Serbia;
| | - Nataša Nikolić
- Clinic for Infectious and Tropical Diseases, University Clinical Center of Serbia, Bulevar Oslobođenja 16, 11000 Belgrade, Serbia; (A.F.); (N.M.); (J.S.); (N.K.); (J.R.); (N.T.); (O.S.); (A.R.-S.); (N.K.)
- Faculty of Medicine, University of Belgrade, Dr Subotica 8, 11000 Belgrade, Serbia;
| |
Collapse
|
2
|
Nagarathinam K, Scheck A, Labuhn M, Ströh LJ, Herold E, Veselkova B, Tune S, Cramer JT, Rosset S, Vollers SS, Bankwitz D, Ballmaier M, Böning H, Roth E, Khera T, Ahsendorf-Abidi HP, Dittrich-Breiholz O, Obleser J, Nassal M, Jäck HM, Pietschmann T, Correia BE, Krey T. Epitope-focused immunogens targeting the hepatitis C virus glycoproteins induce broadly neutralizing antibodies. SCIENCE ADVANCES 2024; 10:eado2600. [PMID: 39642219 PMCID: PMC11623273 DOI: 10.1126/sciadv.ado2600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 11/04/2024] [Indexed: 12/08/2024]
Abstract
Hepatitis C virus (HCV) infection causes ~290,000 annual human deaths despite the highly effective antiviral treatment available. Several viral immune evasion mechanisms have hampered the development of an effective vaccine against HCV, among them the remarkable conformational flexibility within neutralization epitopes in the HCV antigens. Here, we report the design of epitope-focused immunogens displaying two distinct HCV cross-neutralization epitopes. We show that these immunogens induce a pronounced, broadly neutralizing antibody response in laboratory and transgenic human antibody mice. Monoclonal human antibodies isolated from immunized human antibody mice specifically recognized the grafted epitopes and neutralized four diverse HCV strains. Our results highlight a promising strategy for developing HCV immunogens and provide an encouraging paradigm for targeting structurally flexible epitopes to improve the induction of neutralizing antibodies.
Collapse
Affiliation(s)
- Kumar Nagarathinam
- Institute of Biochemistry, Center of Structural and Cell Biology in Medicine, University of Lübeck, 23562 Lübeck, Germany
| | - Andreas Scheck
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne CH-1015, Switzerland
| | - Maurice Labuhn
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Luisa J. Ströh
- Institute of Virology, Hannover Medical School, 30625 Hannover, Germany
| | - Elisabeth Herold
- Institute of Biochemistry, Center of Structural and Cell Biology in Medicine, University of Lübeck, 23562 Lübeck, Germany
| | - Barbora Veselkova
- Institute of Biochemistry, Center of Structural and Cell Biology in Medicine, University of Lübeck, 23562 Lübeck, Germany
| | - Sarah Tune
- Department of Psychology, University of Lübeck, 23562 Lübeck, Germany
- Center of Brain, Behavior, and Metabolism, University of Lübeck, 23562 Lübeck, Germany
| | | | - Stéphane Rosset
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne CH-1015, Switzerland
| | - Sabrina S. Vollers
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne CH-1015, Switzerland
| | - Dorothea Bankwitz
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Matthias Ballmaier
- Central Research Facility Cell Sorting, Hannover Medical School, 30625 Hannover, Germany
| | - Heike Böning
- Institute of Virology, Hannover Medical School, 30625 Hannover, Germany
| | - Edith Roth
- Division of Molecular Immunology, Department of Internal Medicine 3, Friedrich-Alexander University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Tanvi Khera
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | | | | | - Jonas Obleser
- Department of Psychology, University of Lübeck, 23562 Lübeck, Germany
- Center of Brain, Behavior, and Metabolism, University of Lübeck, 23562 Lübeck, Germany
| | - Michael Nassal
- Department of Internal Medicine 2/Molecular Biology, University Hospital Freiburg, 79106 Freiburg, Germany
| | - Hans-Martin Jäck
- Division of Molecular Immunology, Department of Internal Medicine 3, Friedrich-Alexander University of Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Thomas Pietschmann
- Institute for Experimental Virology, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
- German Center for Infection Research (DZIF), partner site Hannover-Braunschweig, 30625 Hannover, Germany
- Excellence Cluster 2155 RESIST, Hannover Medical School, 30625 Hannover, Germany
| | - Bruno E. Correia
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne, Lausanne CH-1015, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne CH-1015, Switzerland
| | - Thomas Krey
- Institute of Biochemistry, Center of Structural and Cell Biology in Medicine, University of Lübeck, 23562 Lübeck, Germany
- Institute of Virology, Hannover Medical School, 30625 Hannover, Germany
- Excellence Cluster 2155 RESIST, Hannover Medical School, 30625 Hannover, Germany
- German Center for Infection Research (DZIF), partner site Hamburg-Lübeck-Borstel-Riems, 38124 Braunschweig, Germany
- Centre for Structural Systems Biology (CSSB), 22607 Hamburg, Germany
| |
Collapse
|
3
|
Lange S, Baehr C, Cakman-Hinrichs NI, Cron K, Fengels H, Gregor C, Matschenz K, Petersen J, Steinfurth R, Stoehr A, Unger S, Gil Mir M, Hernández C, Schwenken M, Buggisch P. ReLink strategy in diagnosed-but-untreated hepatitis C-positive patients in Germany: report from a single center. ZEITSCHRIFT FUR GASTROENTEROLOGIE 2024; 62:1701-1707. [PMID: 39013433 PMCID: PMC11466545 DOI: 10.1055/a-2349-2767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/23/2024] [Indexed: 07/18/2024]
Abstract
OBJECTIVE The ReLink project aims to reintegrate diagnosed-but-untreated hepatitis-C-positive patients into medical care and initiate a therapy. MATERIAL/METHODS A retrospective search within the practice management system of a single center in Germany identified among 1965 hepatitis-C-positive patients 100 untreated patients with available contact details and meeting all inclusion criteria. Patients were contacted by 2 contact rounds. RESULTS Out of 100 patients, 64% were male. Most patients (81%) were aged between 30 and 59 years. The patients belonged to high-risk groups for hepatitis C virus infections or had other comorbidities. The majority of patients injected drugs (21%) and/or were currently or had been on substitution therapy (44%); alcohol addiction was also frequent (21%). Out of 25 patients who agreed to an appointment, 10 patients (40%) started therapy and 5 additional patients (20%) agreed to therapy but were not yet able to start or had not yet made a decision. One‑third of patients who agreed to an appointment did not show up. CONCLUSIONS Diagnosed-but-untreated patients are an important subgroup of hepatitis-C-positive patients; their recall to the clinic for direct-acting antiviral therapy is possible. However, inaccurate contact information, unresponsiveness to outreach, and further reluctance to attend doctor appointments limited the overall impact of this program. Regular review of the patients' contact details may facilitate both follow-up and recall.
Collapse
Affiliation(s)
- Sarah Lange
- MVZ ifi-Institut GmbH an der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Christina Baehr
- MVZ ifi-Institut GmbH an der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | | | - Katharina Cron
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Hannah Fengels
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Christina Gregor
- MVZ ifi-Institut GmbH an der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Katrin Matschenz
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Jörg Petersen
- MVZ ifi-Institut GmbH an der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Robin Steinfurth
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamubrg, Germany
| | - Albrecht Stoehr
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | - Stefan Unger
- MVZ ifi-Institut GmbH An der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| | | | - Candido Hernández
- Gilead Sciences Europe Ltd, Uxbridge, United Kingdom of Great Britain and Northern Ireland
| | | | - Peter Buggisch
- MVZ ifi-Institut GmbH an der Asklepios Klinik St. Georg, Haus L, Hamburg, Germany
| |
Collapse
|
4
|
Wu J, Wang H, Xiang Z, Jiang C, Xu Y, Zhai G, Ling Z. Role of viral hepatitis in pregnancy and its triggering mechanism. J Transl Int Med 2024; 12:344-354. [PMID: 39360164 PMCID: PMC11444475 DOI: 10.2478/jtim-2024-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2024] Open
Abstract
Hepatitis viral infection can cause severe complications, even mortality in pregnant women and their offspring. Multiple studies have shown that vertical transmission can cause viral hepatitis infections in newborns, especially in hepatitis B, C, and E. Screening for hepatitis viral infection in pregnant women is essential. Once infected, pregnant women should be given timely antiviral treatments, which could effectively alleviate the disease progression and reduce adverse outcomes. Besides, the mechanism of viral hepatitis mediating adverse pregnancy outcomes has been a hot topic. Hepatitis B virus has been found to mediate both mother- to-child and parent-child transmission. Liver injury in hepatitis C virus infection is associated with immune-mediated mechanisms, which can be regulated by hormonal factors as well. The mediating mechanism of adverse maternal and infant outcomes caused by hepatitis E virus infection is mainly related to viral replication in the placenta and changes in cytokine and estrogen. Nevertheless, the specific mechanisms related to hepatitis A virus and hepatitis D virus remain unclear, and more research is needed. This review shows that the existence of viral hepatitis during pregnancy can pose certain risks for pregnant women and infants, and different interventions have been used to treat pregnant women infected with viral hepatitis. It may provide deep insight into adverse pregnancy outcomes caused by viral hepatitis and give guidance on treatment.
Collapse
Affiliation(s)
- Jian Wu
- Department of Blood Transfusion, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, 242 Guangji Road, Suzhou 215008, Jiangsu Province, China
| | - Huiqing Wang
- Department of Family Medicine, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou 310016, Zhejiang Province, China
| | - Ze Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, City, Hangzhou 310003, Zhejiang Province, China
| | - Chun Jiang
- Department of Blood Transfusion, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, 242 Guangji Road, Suzhou 215008, Jiangsu Province, China
| | - Yunyang Xu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, City, Hangzhou 310003, Zhejiang Province, China
| | - Guanghua Zhai
- Department of Blood Transfusion, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Nanjing Medical University, 242 Guangji Road, Suzhou 215008, Jiangsu Province, China
| | - Zongxin Ling
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Rd, City, Hangzhou 310003, Zhejiang Province, China
| |
Collapse
|
5
|
Crespi A, Van Uum R, Lathouris H, Masterman C, Muncaster K, Gaete K, Capraru C, Shah H, Feld JJ, Biondi MJ. Increasing linkage to hepatitis C care following trauma-informed rehabilitation: An education and quality improvement project among women. Drug Alcohol Rev 2024; 43:1093-1103. [PMID: 37439376 DOI: 10.1111/dar.13713] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 05/19/2023] [Accepted: 06/16/2023] [Indexed: 07/14/2023]
Abstract
INTRODUCTION The on-going substance use crisis has led to unprecedented rates of hepatitis C virus (HCV) in Canada, with increasing positivity among women who use drugs (WWUD). Despite efforts to reduce barriers to HCV testing and treatment, follow-up remains a major issue. METHODS In this quality improvement project (QIP), we partnered with a short-stay trauma-informed residential drug treatment facility specifically for WWUD, to provide an engaging peer-led HCV education session, followed by low-barrier nurse and peer-led testing and treatment. We sought to evaluate these interventions, as well as determine what factors could improve engagement after women leave. RESULTS The session was attended by 217 participants, 130 completed the survey and 153 opted into testing. Survey results indicated that participants were highly motivated to access general care as well as HCV testing and treatment. The most frequently reported barriers to testing and treatment were a previous negative test and being asymptomatic, respectively. Follow-up facilitators included a non-judgmental provider (88%), monetary incentives (67%), follow-up phone calls (77%), e-mails (66%) and text messages (58%). Of those who were RNA positive, 5 of 13 initiated treatment on-site. By using the results of the QIP in real-time, 6 of 13 were started after leaving the centre (one pending and one lost to follow-up). DISCUSSION AND CONCLUSIONS The implementation of co-localised peer-led testing and treatment for HCV, along with persistent follow-up efforts, led to increases in linkage to care and treatment. Co-localisation of testing and care with substance-use services, especially if residential, is a viable, low-barrier strategy for increasing linkage to care among WWUD.
Collapse
Affiliation(s)
- Agustina Crespi
- Toronto Centre for Liver Disease/VIRCAN, University Health Network, Toronto, Canada
| | | | | | - Chelsea Masterman
- Arthur Labatt Family School of Nursing, Western University, London, Canada
| | - Kody Muncaster
- Department of Gender, Sexuality, & Women's Studies, Western University, London, Canada
| | - Kayla Gaete
- School of Nursing, York University, Toronto, Canada
| | - Camelia Capraru
- Toronto Centre for Liver Disease/VIRCAN, University Health Network, Toronto, Canada
| | - Hemant Shah
- Toronto Centre for Liver Disease/VIRCAN, University Health Network, Toronto, Canada
| | - Jordan J Feld
- Toronto Centre for Liver Disease/VIRCAN, University Health Network, Toronto, Canada
| | - Mia J Biondi
- Toronto Centre for Liver Disease/VIRCAN, University Health Network, Toronto, Canada
- School of Nursing, York University, Toronto, Canada
- Omega Specialty Nurses, Toronto, Canada
- Arthur Labatt Family School of Nursing, Western University, London, Canada
| |
Collapse
|
6
|
Brzdęk M, Zarębska-Michaluk D, Tomasiewicz K, Tudrujek-Zdunek M, Lorenc B, Mazur W, Berak H, Janocha-Litwin J, Klapaczyński J, Sitko M, Janczewska E, Dybowska D, Parfieniuk-Kowerda A, Piekarska A, Jaroszewicz J, Flisiak R. Effectiveness and safety of direct-acting antivirals in the therapy of HCV-infected elderly people. Minerva Med 2024; 115:266-276. [PMID: 38591836 DOI: 10.23736/s0026-4806.24.09238-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
BACKGROUND The introduction of direct-acting antivirals (DAAs) with their effectiveness and safety has revolutionized the approach to treating hepatitis C virus (HCV) infections. Nevertheless, elderly patients have often been excluded from clinical trials, so the results of real-world studies are particularly important in the context of the geriatric population. The study aimed to analyze the effectiveness and safety of antiviral DAA treatment in HCV-infected patients over the age of 65, with notable inclusion of those over the age of 85. METHODS The analyzed patients were divided by age into three groups: group A (65-74 years), group B (75-84 years) and group C (85 years or older). Patients started DAA based therapy at 22 hepatology centers between July 2015 and December 2022. RESULTS A total of 3505 elderly patients were included in the analysis, and this group consisted of 2501 patients in group A, 893 in group B, and 111 in group C. The study population, regardless of age, was dominated by women. Patients had a high prevalence of comorbidities (84.9%, 92.2%, and 93.7%, respectively) as well as a high rate of concomitant medications. The sustained virological response was 97.9% in groups A and B and 100% in group C. The therapy was well-tolerated, with a comparable safety profile observed in all analyzed groups. CONCLUSIONS DAA-based therapies are highly effective and well tolerated by the elderly patients, including those over 85. Age should not be a barrier to treatment, but careful management is necessary.
Collapse
Affiliation(s)
- Michał Brzdęk
- Department of Infectious Diseases and Allergology, Jan Kochanowski University, Kielce, Poland -
| | | | | | | | - Beata Lorenc
- Pomeranian Center of Infectious Diseases, Medical University Gdansk, Gdansk, Poland
| | - Włodzimierz Mazur
- Clinical Department of Infectious Diseases, Clinical University of Silesia in Katowice, Chorzów, Poland
| | - Hanna Berak
- Daily Department, Hospital for Infectious Diseases, Warsaw, Poland
| | - Justyna Janocha-Litwin
- Department of Infectious Diseases and Hepatology, Wroclaw Medical University, Wroclaw, Poland
| | - Jakub Klapaczyński
- Department of Internal Medicine and Hepatology, The National Institute of Medicine of the Ministry of Interior and Administration, Warsaw, Poland
| | - Marek Sitko
- Department of Infectious and Tropical Diseases, Jagiellonian University, Krakow, Poland
| | - Ewa Janczewska
- Department of Basic Medical Sciences, Faculty of Public Health in Bytom, Medical University of Silesia in Katowice, Bytom, Poland
| | - Dorota Dybowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Anna Parfieniuk-Kowerda
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
| | - Anna Piekarska
- Department of Infectious Diseases and Hepatology, Medical University of Lodz, Lodz, Poland
| | - Jerzy Jaroszewicz
- Department of Infectious Diseases and Hepatology, Medical University of Silesia in Katowice, Bytom, Poland
| | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Bialystok, Bialystok, Poland
| |
Collapse
|
7
|
Benetti F, de Araújo A, de Maman Júnior I, Coelho Borges Cheinquer C, Herz Wolff F, Cheinquer H. Impact of sustained virologic response on glucose parameters among patients with chronic hepatitis C treated with direct-acting antivirals. ARCHIVES OF ENDOCRINOLOGY AND METABOLISM 2024; 68:e220480. [PMID: 38709148 PMCID: PMC11081048 DOI: 10.20945/2359-4292-2022-0480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 08/09/2023] [Indexed: 05/07/2024]
Abstract
Objective The aim of this study was to evaluate the glycated hemoglobin (HbA1c) levels before and after sustained virologic response (SVR) and investigate the baseline characteristics associated with improved glycemic control in patients with chronic hepatitis C (CHC) achieving SVR after directacting antivirals (DAA) therapy. Materials and methods Consecutive adult patients with CHC who achieved SVR after DAA treatment between January 2016 and December 2017 at Hospital de Clínicas de Porto Alegre (RS, Brazil) were prospectively included. Levels of HbA1c were measured up to 24 weeks before DAA therapy and 12 weeks after SVR. Exclusion criteria were decompensated cirrhosis, HIV and/or hepatitis B virus, liver disease of other etiologies, and/or modification of prediabetes/ type 2 diabetes mellitus (PDM/T2DM) management. The primary outcome was a comparison of HbA1c levels before and after SVR. Secondary outcomes were the baseline variables associated with improved glycemic control. Results The study included 207 patients with a mean age of 60.6±10.7 years, of whom 51.7% were women, 56% had cirrhosis, 37.7% had HCV genotype 3, and 54.5% had baseline T2DM or PDM. The median HbA1c level reduced significantly after SVR (5.5%, interquartile range [IQR] 4.9%-6.3%) compared with baseline (5.7%, IQR 5.3%-6.7%; p = 0.01). The baseline characteristics associated with improved HbA1c after SVR were cirrhosis, genotype 3, and age ≤ 60 years. Conclusion Among patients with CHC, SVR after DAA was associated with HbA1c reduction, particularly in those with cirrhosis, genotype 3, and age ≤ 60 years.
Collapse
Affiliation(s)
- Fábia Benetti
- Programa de Pós-graduação em Gastroenterologia e Hepatologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Alexandre de Araújo
- Programa de Pós-graduação em Gastroenterologia e Hepatologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
- Divisão de Gastroenterologia e Hepatologia do Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Italo de Maman Júnior
- Programa de Pós-graduação em Gastroenterologia e Hepatologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | | | - Fernando Herz Wolff
- Programa de Pós-graduação em Gastroenterologia e Hepatologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil
| | - Hugo Cheinquer
- Programa de Pós-graduação em Gastroenterologia e Hepatologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil,
- Divisão de Gastroenterologia e Hepatologia do Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Brasil,
| |
Collapse
|
8
|
Dobrowolska K, Brzdęk M, Rzymski P, Flisiak R, Pawłowska M, Janczura J, Brzdęk K, Zarębska-Michaluk D. Revolutionizing hepatitis C treatment: next-gen direct-acting antivirals. Expert Opin Pharmacother 2024; 25:833-852. [PMID: 38768013 DOI: 10.1080/14656566.2024.2358139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
INTRODUCTION With the introduction of highly effective and safe therapies with next-generation direct-acting antivirals (DAAs), that act without interferon, hepatitis C virus (HCV) infection remains the only treatable chronic infectious disease. AREAS COVERED The review aims to provide an overview of the therapy revolution with a description of specific DAAs, their mechanisms of action, a summary of the safety and efficacy of specific regimens, and a discussion of populations requiring special therapeutic approaches. EXPERT OPINION DAAs are highly effective, safe, and easy to use. However, challenges such as access to health services and loss of patients from the cascade of care, especially in groups disproportionately affected by HCV infection, such as substance abusers, make it difficult to achieve the WHO's goal of HCV elimination. The proposed strategy to combat these difficulties involves a one-step approach to diagnosing and treating the infection, the availability of long-lasting forms of medication, and the development of an effective vaccine. The aforementioned opportunities are all the more important as the world is facing an opioid epidemic that is translating into an increase in HCV prevalence. This phenomenon is of greatest concern in women of childbearing age and in those already pregnant due to treatment limitations.
Collapse
Affiliation(s)
| | - Michał Brzdęk
- Collegium Medicum, Jan Kochanowski University, Kielce, Poland
| | - Piotr Rzymski
- Department of Environmental Medicine, Poznan University of Medical Sciences, Poznan, Poland
| | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, Białystok, Poland
| | - Małgorzata Pawłowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Collegium Medicum Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Jakub Janczura
- Collegium Medicum, Jan Kochanowski University, Kielce, Poland
| | - Kinga Brzdęk
- Collegium Medicum, Jan Kochanowski University, Kielce, Poland
| | | |
Collapse
|
9
|
Chen CH, Hsieh YY, Chen WM, Shen CH, Wei KL, Chang KC, Ding YJ, Lu SN, Hung CH, Chang TS. Weight Gain and Increased Body Mass Index in Patients with Hepatitis C after Eradication Using Direct-Acting Antiviral Therapy in Taiwan. Diagnostics (Basel) 2024; 14:213. [PMID: 38275460 PMCID: PMC10814234 DOI: 10.3390/diagnostics14020213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2023] [Revised: 01/14/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Few studies have reported weight gain in patients with hepatitis C virus (HCV) infection treated with direct-acting antiviral agents (DAAs). This retrospective cohort study identified factors associated with substantial weight gain after DAA treatment in Taiwan. This study involved patients treated using DAAs at the Chiayi and Yunlin branches of Chang Gung Memorial Hospital from 1 January 2017 to 31 October 2020. Body weight data were collected at the start of DAA therapy and 2 years after the confirmation of a sustained virologic response. We performed multiple logistic regression to evaluate the clinical and laboratory parameters associated with a large body mass index (BMI) increase (≥5%). The mean BMI was 25.56 ± 4.07 kg/m2 at baseline and 25.77 ± 4.29 kg/m2 at the endpoint (p = 0.005). A considerable reduction in fibrosis-4 (FIB-4) score was a significant predictor of a large BMI increase (OR: 1.168; 95% CI: 1.047-1.304, p = 0.006). By contrast, older age (OR: 0.979; 95% CI: 0.963-0.996, p = 0.013) and a higher baseline BMI (OR: 0.907; 95% CI: 0.863-0.954, p < 0.001) were associated with a reduced risk of a large increase in BMI at the endpoint. In summary, a larger BMI increase was closely associated with a younger age, lower baseline BMI, and higher FIB-4 score reduction. Notably, differences in DAA regimens did not affect outcomes. Future studies are needed to elucidate the long-term effects and metabolic outcomes associated with this body weight change and investigate the exact underlying mechanisms.
Collapse
Affiliation(s)
- Chun-Hsien Chen
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
| | - Yung-Yu Hsieh
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
| | - Wei-Ming Chen
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
| | - Chien-Heng Shen
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
| | - Kuo-Liang Wei
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
| | - Kao-Chi Chang
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
| | - Yuan-Jie Ding
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
| | - Sheng-Nan Lu
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Chao-Hung Hung
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 83301, Taiwan
| | - Te-Sheng Chang
- Department of Gastroenterology and Hepatology, Division of Internal Medicine, Chang Gung Memorial Hospital, Chiayi 61363, Taiwan; (C.-H.C.)
- College of Medicine, Chang Gung University, Taoyuan 33303, Taiwan
| |
Collapse
|
10
|
Giachello M, Leporatti L, Levaggi R, Montefiori M. The illness trap: The impact of disability benefits on willingness to receive HCV treatment. ECONOMICS AND HUMAN BIOLOGY 2024; 52:101352. [PMID: 38278057 DOI: 10.1016/j.ehb.2024.101352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 11/28/2023] [Accepted: 01/13/2024] [Indexed: 01/28/2024]
Abstract
Health care is assumed to be a primary good, implying that patients should always demand or accept treatments that may enhance their life expectancy and quality of life, especially if the risks associated with the treatment are low. We argue that, especially in countries with a well-developed welfare state, treating an invalidating condition may lead to opportunity costs in terms of reduced disability allowances that may represent a barrier to treatment for low-income individuals. We test this hypothesis by applying a recursive bivariate probit approach to population data from an ad hoc administrative database for Liguria (an Italian administrative region). The dataset includes data for more than 8 thousand people affected by hepatitis C Virus (HCV) infection between 2013 and 2020. After the discovery of new direct-acting antivirals (DAAs) in 2014, HCV eradication may now be possible. However, despite the national and international efforts, several patients diagnosed with HCV choose not to undergo drug therapy despite the adverse consequences for their personal health and relevant costs to the national health system. We show that five years after the implementation of the new drugs, approximately 41 % of the diagnosed population in Liguria remains untreated. This percentage increases to 64 % within the subgroup entitled to disability benefits and characterized by lower income levels. The "illness trap" effect is more substantial for older people but also low-income patients. Moreover, we find that this effect is higher in patients with an intermediate range of comorbidities; indeed, these patients are at a higher risk of losing economic benefits if they recover from HCV. These results suggest the need for healthcare policies addressing this distorting effect when designing benefit programs and granting financial benefits to patients.
Collapse
Affiliation(s)
- Marta Giachello
- Department of Economics (DIEC), Centro APHEC, University of Genoa, Via Vivaldi, 5, Genova, GE 16126, Italy
| | - Lucia Leporatti
- Department of Economics (DIEC), Centro APHEC, University of Genoa, Via Vivaldi, 5, Genova, GE 16126, Italy.
| | - Rosella Levaggi
- Department of Economics and Management, University of Brescia, via S. Faustino 74/B, Brescia, BS 25122, Italy
| | - Marcello Montefiori
- Department of Economics (DIEC), Centro APHEC, University of Genoa, Via Vivaldi, 5, Genova, GE 16126, Italy
| |
Collapse
|
11
|
Niu ZX, Nie P, Herdewijn P, Wang YT. Synthetic approaches and application of clinically approved small-molecule drugs to treat hepatitis. Eur J Med Chem 2023; 262:115919. [PMID: 37922830 DOI: 10.1016/j.ejmech.2023.115919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/24/2023] [Accepted: 10/26/2023] [Indexed: 11/07/2023]
Abstract
Hepatitis, a global public health concern, presents a significant burden on healthcare systems worldwide. Particularly, hepatitis B and C are viral infections that can lead to severe liver damage, cirrhosis, and even hepatocellular carcinoma (HCC). The urgency to combat these diseases has driven researchers to explore existing small-molecule drugs as potential therapeutics. This comprehensive review provides a systematic overview of synthetic routes to key antiviral agents used to manage hepatitis. Furthermore, it elucidates the mechanisms of action of these drugs, shedding light on their interference with viral replication and liver disease progression. The review also discusses the clinical applications of these drugs, including their use in combination therapies and various patient populations. By evaluating the synthetic pathways and clinical utility of these drugs, this review not only consolidates current knowledge but also highlights potential future directions for research and drug development in the fight against hepatitis, ultimately contributing to improved patient outcomes and reduced global disease burden.
Collapse
Affiliation(s)
- Zhen-Xi Niu
- Department of Pharmacy, Children's Hospital Affiliated to Zhengzhou University, Henan Children's Hospital, Zhengzhou Children's Hospital, Zhengzhou, 450018, China
| | - Peng Nie
- Rega Institute for Medical Research, Medicinal Chemistry, KU Leuven, Herestraat 49-Box 1041, 3000, Leuven, Belgium.
| | - Piet Herdewijn
- Rega Institute for Medical Research, Medicinal Chemistry, KU Leuven, Herestraat 49-Box 1041, 3000, Leuven, Belgium.
| | - Ya-Tao Wang
- First People's Hospital of Shangqiu, Henan Province, Shangqiu, 476100, China; Department of Orthopedics, China-Japan Union Hospital, Jilin University, Changchun, 130033, China.
| |
Collapse
|
12
|
Maasoumy B, Lampertico P. Hepatitis Delta: Ready for primetime? Liver Int 2023; 43 Suppl 1:1-4. [PMID: 37658668 DOI: 10.1111/liv.15679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 09/03/2023]
Affiliation(s)
- Benjamin Maasoumy
- Department of Gastroenterology, Hepatology, Infectious Diseases and Endocrinology, Hannover Medical School, Hannover, Germany
- German Centre for Infection Research (DZIF), Braunschweig, Germany
| | - Pietro Lampertico
- Division of Gastroenterology and Hepatology, Foundation IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- CRC "A. M. and A. Migliavacca" Center for Liver Disease, Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| |
Collapse
|
13
|
Zou J, Li J, Zhong X, Tang D, Fan X, Chen R. Liver in infections: a single-cell and spatial transcriptomics perspective. J Biomed Sci 2023; 30:53. [PMID: 37430371 PMCID: PMC10332047 DOI: 10.1186/s12929-023-00945-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/27/2023] [Indexed: 07/12/2023] Open
Abstract
The liver is an immune organ that plays a vital role in the detection, capture, and clearance of pathogens and foreign antigens that invade the human body. During acute and chronic infections, the liver transforms from a tolerant to an active immune state. The defence mechanism of the liver mainly depends on a complicated network of intrahepatic and translocated immune cells and non-immune cells. Therefore, a comprehensive liver cell atlas in both healthy and diseased states is needed for new therapeutic target development and disease intervention improvement. With the development of high-throughput single-cell technology, we can now decipher heterogeneity, differentiation, and intercellular communication at the single-cell level in sophisticated organs and complicated diseases. In this concise review, we aimed to summarise the advancement of emerging high-throughput single-cell technologies and re-define our understanding of liver function towards infections, including hepatitis B virus, hepatitis C virus, Plasmodium, schistosomiasis, endotoxemia, and corona virus disease 2019 (COVID-19). We also unravel previously unknown pathogenic pathways and disease mechanisms for the development of new therapeutic targets. As high-throughput single-cell technologies mature, their integration into spatial transcriptomics, multiomics, and clinical data analysis will aid in patient stratification and in developing effective treatment plans for patients with or without liver injury due to infectious diseases.
Collapse
Affiliation(s)
- Ju Zou
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jie Li
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Xiao Zhong
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Daolin Tang
- Department of Surgery, UT Southwestern Medical Center, Dallas, TX, USA
| | - Xuegong Fan
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Ruochan Chen
- Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| |
Collapse
|
14
|
Maretti-Mira AC, Salomon MP, Hsu AM, Matsuba C, Golden-Mason L. Chronic HCV infection promotes cytotoxicity in antigen-specific CD8 + T cells regardless of virus specificity. FRONTIERS IN VIROLOGY (LAUSANNE, SWITZERLAND) 2023; 3:1198361. [PMID: 37886042 PMCID: PMC10601542 DOI: 10.3389/fviro.2023.1198361] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Introduction Despite advancements in hepatitis C virus (HCV) infection treatment, HCV still represents a significant public health burden. Besides progressive hepatic damage, viral persistence has lasting effects on innate and adaptive immune responses. Lack of a complete understanding of the factors driving an effective HCV response contributes to the failure to develop a vaccine for prevention. This study advances the existing knowledge on HCV-specific CD8+ T cells and describes the impact of current or past HCV infection on CD8+ T cells specific for other viruses. Methods We used barcoded-dextramers to identify and sort CD8+ T cells specific for HCV, cytomegalovirus, and influenza, and characterized them using single-cell RNA sequencing technology. Our cohort included chronic (cHCV), spontaneously resolved (rHCV), and subjects undergoing direct-acting antiviral (DAA) therapy. Results We show that HCV-specific CD8+ T cells have cytotoxic features in patients with cHCV, which is progressively reduced with DAA therapy and persists 12 weeks after treatment completion. We also observe a shift in the CD8+ T cell phenotype on DAA treatment, with decreased effector memory and exhausted cell signatures. In rHCV, we also detected a smaller proportion of effector memory cells compared to cHCV. The proportion of CD8+ exhausted T cells in cHCV and rHCV subjects was comparable. Moreover, we also observed that non-HCV virus-specific CD8+ T cells exhibit robust cytotoxic traits during cHCV infection. Discussion Altogether, our findings suggest that cHCV infection promotes cytotoxicity in CD8+ T cells regardless of virus specificity. The immunological changes caused by cHCV infection in CD8+ T cells may contribute to worsening the ongoing hepatic damage caused by HCV infection or exacerbate the immune response to possible co-infections. Our data provide a resource to groups exploring the underlying mechanisms of HCV-specific T cell spontaneous and treatment-induced resolution to inform the development of effective vaccines against HCV infection.
Collapse
Affiliation(s)
- Ana C. Maretti-Mira
- USC Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Division of Gastrointestinal and Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Matthew P. Salomon
- USC Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Angela M. Hsu
- USC Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Division of Gastrointestinal and Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Chikako Matsuba
- USC Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| | - Lucy Golden-Mason
- USC Research Center for Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
- Division of Gastrointestinal and Liver Diseases, Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA, United States
| |
Collapse
|
15
|
Reau N, Cheng WH, Shao Q, Marx SE, Brooks H, Martinez A. Real-World Effectiveness of 8-Week Glecaprevir/Pibrentasvir in Treatment-Naïve, Compensated Cirrhotic HCV Patients. Infect Dis Ther 2023:10.1007/s40121-023-00823-z. [PMID: 37329414 PMCID: PMC10390440 DOI: 10.1007/s40121-023-00823-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 05/16/2023] [Indexed: 06/19/2023] Open
Abstract
INTRODUCTION The EXPEDITION-8 clinical trial has demonstrated that treatment-naïve patients with compensated cirrhosis (TN/CC) of HCV genotypes 1-6 can achieve a 98% intent-to-treat sustained virologic response rate 12 weeks post-treatment with an 8-week glecaprevir/pibrentasvir (G/P) regimen. Further real-world evidence is needed to support the effectiveness of 8-week G/P in a clinical practice setting and to consolidate these treatment recommendations. The aim of this study is to contribute real-world evidence for the effectiveness of an 8-week G/P treatment in TN/CC patients with HCV genotypes 1-6. METHODS Retrospective real-world data from 494 TN/CC patients with HCV genotypes 1-6 were collected between August 2017 to December 2020 from the Symphony Health Solutions administrative claims database. Demographic and clinical characteristics were collected at baseline. Patients were required to have a follow-up HCV ribonucleic acid level at least 8 weeks or more after the end of treatment. The percentage of patients achieving a sustained virologic response (SVR) is reported. RESULTS The majority of patients were male (58%) and Caucasian (40%), with a mean age of 58 years; 74%, 12%, 12%, and 1% of patients were HCV genotype 1, 2, 3, and 4-6 infected, respectively. SVR was achieved in 95.5% of all patients. Across patient subgroups, SVR was achieved in 95.6% of patients with HCV genotype 3 and in 93% of HCV patients with a recent diagnosis of illicit drug use or abuse (within 6 months prior to G/P initiation). CONCLUSION Early real-world evidence indicates high effectiveness of the 8-week G/P regimen in TN/CC patients of HCV genotypes 1-6 from a large US claims database.
Collapse
Affiliation(s)
- Nancy Reau
- Rush University Medical Center, 1725 W. Harrison St., Suite 158, Chicago, IL, 60612, USA.
| | | | | | | | | | - Anthony Martinez
- Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, State University of New York, Buffalo, NY, USA
| |
Collapse
|
16
|
Musialowicz B, Kamitaki B, Zhang P. An exploratory study evaluating the 30 medications most commonly associated with headaches in the FDA Adverse Event Reporting System. Headache 2023; 63:299-304. [PMID: 36651638 DOI: 10.1111/head.14453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 01/19/2023]
Abstract
OBJECTIVE This project seeks to identify the top 30 drugs most commonly associated with headaches in the U.S. Food and Drug Administration Adverse Event Reporting System (FAERS), as well as their respective reporting odds ratios (RORs). BACKGROUND Headache secondary to medication use is a well-known entity. However, which medications are most likely to cause headaches on a global scale is unknown. METHODS We extracted case identifiers, adverse events, and attributed medications for entries in the FAERS database from July 1, 2018, to March 31, 2020. Entries were split into two datasets based on whether or they contained the word "headache(s)." Non-medication words were then excluded. The medications most commonly associated with headaches were then identified. RESULTS We extracted 2,673,081 entries, of which 86,086 contain the word "headache(s)." The 30 most frequently appearing medications were then ranked by ROR values with associated 95% confidence intervals. The three medications with the greatest association with headaches were selexipag (ROR 16.7, 95% CI 15.8-17.7), epoprostenol (ROR 11.7, 95% CI 10.8-12.7), and glecaprevir (ROR 8.7, 95% CI 8.3-9.2). Immunosuppressants, antivirals, as well as pulmonary hypertension medication classes were most commonly associated with headache. CONCLUSION Our study offers a potential list of the medication classes commonly associated with iatrogenic headaches.
Collapse
Affiliation(s)
- Brett Musialowicz
- Department of Neurology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Brad Kamitaki
- Department of Neurology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| | - Pengfei Zhang
- Department of Neurology, Rutgers Robert Wood Johnson Medical School, New Brunswick, New Jersey, USA
| |
Collapse
|
17
|
Conti J, Dryden E, Fincke BG, Dunlap S, McInnes DK. Innovative Approaches to Engaging Homeless and Marginally Housed Patients in Care: a Case Study of Hepatitis C. J Gen Intern Med 2023; 38:156-164. [PMID: 35879538 PMCID: PMC9849487 DOI: 10.1007/s11606-022-07708-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 06/16/2022] [Indexed: 01/22/2023]
Abstract
BACKGROUND Homeless and marginally housed (HAMH) individuals experience significant health disparities compared to housed counterparts, including higher hepatitis C virus (HCV) rates. New direct-acting antiviral (DAA) medications dramatically increased screening and treatment rates for HCV overall, but inequities persist for HAMH populations. OBJECTIVE This study examines the range of policies, practices, adaptations, and innovations implemented by Veteran Affairs Medical Centers (VAMCs) in response to Veterans Health Administration (VHA)'s 2016 HCV funding allocation to expand provision of HCV care. DESIGN Ethnographic site visits to six US VAMCs varying in size, location, and availability of Homeless Patient-Aligned Care Teams. Semi-structured qualitative interviews informed by the HCV care continuum were conducted with providers, staff, and HAMH patients to elicit experiences providing and receiving HCV care. Semi-structured field note templates captured clinical care observations. Interview and observation data were analyzed to identify cross-cutting themes and strategies supporting tailored HCV care for HAMH patients. PARTICIPANTS Fifty-six providers and staff working in HCV and/or homelessness care (e.g., infectious disease providers, primary care providers, social workers). Twenty-five patients with varying homeless experiences, including currently, formerly, or at risk of homelessness (n=20) and stably housed (n=5). KEY RESULTS All sites experienced challenges with continued engagement of HAMH individuals in HCV care, which led to the implementation of targeted care strategies to better meet their needs. Across sites, we identified 35 unique strategies used to find, engage, and retain HAMH individuals in HCV care. CONCLUSIONS Despite highly effective, widely available HCV treatments, HAMH individuals continue to experience challenges accessing HCV care. VHA's 2016 HCV funding allocation resulted in rapid adoption of strategies to engage and retain vulnerable patients in HCV treatment. The strategies identified here can help healthcare institutions tailor and target approaches to provide sustainable, high-quality, equitable care to HAMH individuals living with HCV and other chronic illnesses.
Collapse
Affiliation(s)
- Jennifer Conti
- Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, MA, USA.
| | - Eileen Dryden
- Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, MA, USA
| | - B Graeme Fincke
- Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, MA, USA
- Department of Health Law, Policy, and Management, Boston University School of Public Health, Boston, MA, USA
| | - Shawn Dunlap
- Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, MA, USA
| | - D Keith McInnes
- Center for Healthcare Organization and Implementation Research, VA Bedford Healthcare System, Bedford, MA, USA
- Department of Health Law, Policy, and Management, Boston University School of Public Health, Boston, MA, USA
| |
Collapse
|
18
|
Weigand K, Peschel G, Grimm J, Müller M, Höring M, Krautbauer S, Liebisch G, Buechler C. HCV Infection and Liver Cirrhosis Are Associated with a Less-Favorable Serum Cholesteryl Ester Profile Which Improves through the Successful Treatment of HCV. Biomedicines 2022; 10:biomedicines10123152. [PMID: 36551908 PMCID: PMC9775323 DOI: 10.3390/biomedicines10123152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/28/2022] [Accepted: 12/03/2022] [Indexed: 12/12/2022] Open
Abstract
Background: Infection with hepatitis C virus (HCV) lowers serum cholesterol levels, which rapidly recover during therapy with direct-acting antivirals (DAAs). Serum cholesterol is also reduced in patients with liver cirrhosis. Studies investigating serum cholesterol in patients with chronic liver diseases are generally based on enzymatic assays providing total cholesterol levels. Hence, these studies do not account for the individual cholesteryl ester (CE) species, which have different properties according to acyl chain length and desaturation. Methods: Free cholesterol (FC) and 15 CE species were quantified by flow injection analysis high-resolution Fourier Transform mass spectrometry (FIA-FTMS) in the serum of 178 patients with chronic HCV before therapy and during treatment with DAAs. Results: Serum CEs were low in HCV patients with liver cirrhosis and, compared to patients without cirrhosis, proportions of CE 16:0 and 16:1 were higher whereas % CE 20:4 and 20:5 were reduced. FC levels were unchanged, and the CE/FC ratio was consequently low in cirrhosis. FC and CEs did not correlate with viral load. Four CE species were reduced in genotype 3 compared to genotype 1-infected patients. During DAA therapy, 9 of the 15 measured CE species, and the CE/FC ratio, increased. Relative to total CE levels, % CE 16:0 declined and % CE 18:3 was higher at therapy end. At this time, % CE 14:0, 16:0 and 16:1 were higher and % CE 20:4 and 22:6 were lower in the cirrhosis than the non-cirrhosis patients. Viral genotype associated changes of CEs disappeared at therapy end. Conclusions: The serum CE composition differs between patients with and without liver cirrhosis, and changes through the efficient elimination of HCV. Overall, HCV infection and cirrhosis are associated with a higher proportion of CE species with a lower number of carbon atoms and double bonds, reflecting a less-favorable CE profile.
Collapse
Affiliation(s)
- Kilian Weigand
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Gastroenterology, Gemeinschaftsklinikum Mittelrhein, 56073 Koblenz, Germany
| | - Georg Peschel
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
- Department of Internal Medicine, Klinikum Fürstenfeldbruck, 82256 Fürstenfeldbruck, Germany
| | - Jonathan Grimm
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Martina Müller
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Marcus Höring
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Sabrina Krautbauer
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Gerhard Liebisch
- Institute of Clinical Chemistry and Laboratory Medicine, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Christa Buechler
- Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
- Correspondence: ; Tel.: +49-941-944-7009
| |
Collapse
|
19
|
Peschel G, Grimm J, Müller M, Höring M, Krautbauer S, Weigand K, Liebisch G, Buechler C. Sex-specific changes in triglyceride profiles in liver cirrhosis and hepatitis C virus infection. Lipids Health Dis 2022; 21:106. [PMID: 36280840 PMCID: PMC9590217 DOI: 10.1186/s12944-022-01715-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 10/11/2022] [Indexed: 12/05/2022] Open
Abstract
Background Hepatitis C virus (HCV) infection is associated with serum lipid abnormalities, which partly normalize following direct-acting antiviral (DAA) therapy. Here, associations of serum triglycerides (TGs) with viral genotype and markers of liver disease severity were evaluated in patients with chronic HCV. Methods The study included the serum of 177 patients with chronic HCV. TGs were quantified by flow injection analysis Fourier transform mass spectrometry. Laboratory values and noninvasive scores for liver fibrosis assessment were determined. The nonparametric Kruskal‒Wallis test, one-way ANOVA, multiple linear regression and Student’s t test were used as appropriate. P values were adjusted for multiple comparisons. Results HCV-infected women had lower serum TGs than men, and thus, a sex-specific analysis was performed. None of the 46 TG species analyzed differed in the serum of female patients with and without liver cirrhosis. In contrast, in the serum of male patients with liver cirrhosis, TGs with 53, 56 and 58 carbon atoms and three to eight double bonds were diminished. These polyunsaturated TGs were also low in males with a high fibrosis-4 score. TGs with 7 or 8 double bonds negatively correlated with the model of end-stage liver disease score in males. In addition, TGs with 49, 51 and 53 carbon atoms were reduced in male patients infected with genotype 3a in comparison to genotype 1a. TGs with 56 carbon atoms were lower in genotype 3a-infected males than in genotype 1b-infected males. TGs did not differ in females by genotype. Genotype 3-related changes disappeared at the end of therapy with DAAs. Overall, the levels of serum TGs did not change during DAA therapy in either sex. Consequently, the serum TGs of males with liver cirrhosis were lower than those of males without cirrhosis at the end of therapy. Such a difference was not apparent in females. Conclusions The decline in TGs observed only in male patients with liver cirrhosis and male patients infected with genotype 3 illustrates sex-specific changes in lipid metabolism in chronic HCV. Supplementary Information The online version contains supplementary material available at 10.1186/s12944-022-01715-w.
Collapse
Affiliation(s)
- Georg Peschel
- grid.411941.80000 0000 9194 7179Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany ,Department of Internal Medicine, Klinikum Fürstenfeldbruck, 82256 Fürstenfeldbruck, Germany
| | - Jonathan Grimm
- grid.411941.80000 0000 9194 7179Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Martina Müller
- grid.411941.80000 0000 9194 7179Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| | - Marcus Höring
- grid.411941.80000 0000 9194 7179Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Sabrina Krautbauer
- grid.411941.80000 0000 9194 7179Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Kilian Weigand
- grid.411941.80000 0000 9194 7179Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany ,grid.502406.50000 0004 0559 328XDepartment of Gastroenterology, Gemeinschaftsklinikum Mittelrhein, 56073 Koblenz, Germany
| | - Gerhard Liebisch
- grid.411941.80000 0000 9194 7179Institute of Clinical Chemistry and Laboratory Medicine, Regensburg University Hospital, 93053 Regensburg, Germany
| | - Christa Buechler
- grid.411941.80000 0000 9194 7179Department of Internal Medicine I, Gastroenterology, Hepatology, Endocrinology, Rheumatology and Infectious Diseases, University Hospital Regensburg, 93053 Regensburg, Germany
| |
Collapse
|
20
|
Abstract
The development of direct-acting antivirals (DAA) has revolutionized the treatment of chronic hepatitis C, enabling cure of hepatitis C virus (HCV) infection in more than 95% of cases. There are essentially no contraindications, so almost any patient can now be successfully treated. The result is the prevention or amelioration of cirrhosis, hepatocellular carcinoma (HCC), and extrahepatic manifestations. Consequently, the 2020 Nobel Prize in Medicine and Physiology was awarded for the discovery of HCV. Due to the high efficacy of therapy, even global HCV elimination is conceivable even without a vaccine. Here, we would like to venture a SWOT analysis of current HCV therapies aimed at HCV elimination.
Collapse
Affiliation(s)
- Markus Cornberg
- Department of Gastroenterology, Hepatology, and Endocrinology, 9177Hannover Medical School Hannover, Hannover, Germany.,Centre for Individualised Infection Medicine (CiiM), a joint venture of Helmholtz Centre for Infection Research and Hannover Medical School, Hannover, Germany.,German Center for Infection Research (DZIF), Partner-Site Hannover-Braunschweig, Hannover, Germany
| | | |
Collapse
|
21
|
Nishiguchi J, McNamara A, Surlyn CS, Eagen KV, Feeney L, Lian V, Smith DE. Efficacy of an eConsult service to cure hepatitis C in primary care. J Viral Hepat 2022; 29:21-25. [PMID: 34586710 DOI: 10.1111/jvh.13616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 09/20/2021] [Accepted: 09/23/2021] [Indexed: 12/09/2022]
Abstract
In 2016, an eConsult service was developed within a safety net health system to expand access to hepatitis C (HCV) treatment in the primary care setting. The eConsult system provides individualized treatment recommendations from specially trained primary care pharmacists and primary care physicians to primary care providers with less experience in the rapidly changing treatment of HCV. Since its launch, this service has had a large impact in expanding care to a largely homeless and low-income urban population within our health system. We now aim to evaluate its efficacy in curing HCV. In this retrospective cohort study, we describe rates of sustained virologic response 12 weeks after treatment completion (SVR12) for those who received primary care-based HCV treatment through the eConsult system with those who were treated in primary care independent of an eConsult from 2017 to 2019. We found there was no significant difference in the proportion of patients who achieved SVR12 between the two groups. Overall, >90% of patients who received treatment achieved SVR12. Approximately 40% of patients treated for HCV received an eConsult, suggesting utility of the eConsult in expanding access and coordinating treatment for patients within our network.
Collapse
Affiliation(s)
- Jacey Nishiguchi
- San Francisco Department of Public Health, San Francisco, California, USA
| | - Anusha McNamara
- San Francisco Department of Public Health, San Francisco, California, USA
| | - Colleen S Surlyn
- San Francisco Department of Public Health, San Francisco, California, USA.,Whitney Young Health Center, Albany, New York, USA
| | - Kellene Vokaty Eagen
- San Francisco Department of Public Health, San Francisco, California, USA.,University of Wisconsin - Madison, Madison, Wisconsin, USA
| | - Laura Feeney
- San Francisco Department of Public Health, San Francisco, California, USA
| | - Vivian Lian
- San Francisco Department of Public Health, San Francisco, California, USA
| | - David E Smith
- San Francisco Department of Public Health, San Francisco, California, USA
| |
Collapse
|
22
|
Teaima MH, Al-Nuseirat A, Abouhussein D, Badary OA, El-Nabarawi MA. Pharmaceutical policies and regulations of oral antiviral drugs for treatment of hepatitis C in Egypt-case study. J Pharm Policy Pract 2021; 14:106. [PMID: 34915937 PMCID: PMC8674831 DOI: 10.1186/s40545-021-00389-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Accepted: 12/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There are limited studies on the role of efficient regulatory mechanisms in facilitating greater access to Hepatitis C virus (HCV) treatment. Evidence to support the importance of effective pharmaceutical policies and regulations in improving access to oral viral drugs towards the elimination of HCV is needed. This study aims to explore the adequacy of the implemented pharmaceutical policies and regulations in Egypt and their role to improve the availability and affordability of direct-acting antivirals (DAAs) to achieve universal access to the treatment of HCV. METHODS The study adopts a qualitative methodology using desk review of regulatory and legislative information, literature review, and semi-structured interviews with key experts from the concerned governmental regulatory agencies, pharmaceutical industries, academic organizations, professional associations, civil society organizations, and clinicians who are working in researching treatments for hepatitis C. FINDINGS The common DAAs available in the market are Daclatasvir, Sofosbuvir, and Sofosbuvir-based direct-acting antiviral combinations. Fast-track medicines registration pathway for marketing authorization of DAAs is used to reduce market access time frames. The pricing policies are supplemented using price negotiation to set up affordable prices that led to a reasonable price for DAAs. Using Trade-Related Aspects of Intellectual Property Rights (TRIPs) flexibility and local production of quality generics DAAs at lower prices. In addition, political will and collaboration between the government, civil society, and pharmaceutical companies improved patients' access to affordable DAAs and succeeding hepatitis C treatment in Egypt. CONCLUSIONS The study findings indicated that the implemented pharmaceutical policies and regulations have an immense role in enhancing access to medicines towards the elimination of hepatitis C in Egypt.
Collapse
Affiliation(s)
- Mahmoud H Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Adi Al-Nuseirat
- Access to Medicines and Health Technologies Unit, World Health Organization Office for the Eastern Mediterranean Region, Cairo, Egypt.
| | - Dalia Abouhussein
- Pharmaceutics Department, Egyptian Drug Authority (EDA), Cairo, Egypt
| | - Osama A Badary
- Department of Clinical Pharmacy Practice, Faculty of Pharmacy, The British University in Egypt, Cairo, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| |
Collapse
|
23
|
Khalid H, Shahid S, Tariq S, Ijaz B, Ashfaq UA, Ahmad M. Discovery of Novel HCV NS5B polymerase inhibitor, 2-(3,4-dimethyl-5,5-dioxidobenzo[e]pyrazolo[4,3-c][1,2]thiazin-2(4H)-yl)-N-(2-fluorobenzyl)acetamide via molecular docking and experimental approach. Clin Exp Pharmacol Physiol 2021; 48:1653-1661. [PMID: 34386985 DOI: 10.1111/1440-1681.13571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/13/2021] [Accepted: 08/08/2021] [Indexed: 11/27/2022]
Abstract
Hepatitis C Virus (HCV) is a viral infection posing a severe global threat that left untreated progresses to end-stage liver disease, including cirrhosis and hepatocellular carcinoma (HCC). Moreover, no prophylactic approach exists so far enabling its prevention. The NS5B polymerase holds special significance as the target of intervention against HCV infection. The current study kindles benzothiazine derivatives against HCV NS5B polymerase through in silico and experimental approaches. Following docking, the compound 2-(3,4-dimethyl-5,5-dioxidobenzo[e]pyrazolo[4,3-c][1,2]thiazin-2(4H)-yl)-N-(2-fluorobenzyl)acetamide was revealed to form effective binding interaction in the proposed site of HCV NS5B with a score of -10 kcal/mol and subsequently was deciphered through molecular dynamics (MD) simulation study which indicated interaction of residues TYR_382, VAL_381 and HIS_467 through hydrophobic interaction and two residues such as GLU_202 and LYS_209 contributed in the formation of water bridges. The subsequent in silico pharmacological analysis revealed its safe drug profile. The cytotoxicity activity of compound 6c indicated to be non-toxic in HepG2 cells at concentration ranges from 0.001-1.0 µmol/L with >80% cell viability and diminished expression of the HCV NS5B to 98% at the dose of 1.0 µmol/L and 90% at 0.5µmol/L. Thus the hit compound 6c might be a potent NS5B polymerase inhibitor required to be validated further through in vivo and preclinical studies.
Collapse
Affiliation(s)
- Hina Khalid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Sana Shahid
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Somayya Tariq
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Bushra Ijaz
- Center of Excellence in Molecular Biology, University of the Punjab, Lahore, Pakistan
| | - Usman Ali Ashfaq
- Department of Bioinformatics and Biotechnology, Government College University Faisalabad (GCUF), Faisalabad, Pakistan
| | - Matloob Ahmad
- Department of Chemistry, Government College University, Faisalabad, Pakistan
| |
Collapse
|
24
|
Weight Gain after Interferon-Free Treatment of Chronic Hepatitis C-Results from the German Hepatitis C-Registry (DHC-R). Biomedicines 2021; 9:biomedicines9101495. [PMID: 34680612 PMCID: PMC8533115 DOI: 10.3390/biomedicines9101495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/07/2021] [Accepted: 10/16/2021] [Indexed: 01/01/2023] Open
Abstract
Chronic hepatitis C can be treated very effectively with direct-acting antivirals (DAA) with only minor side effects compared to an interferon-containing treatment regimen. The significance of metabolic comorbidities after HCV cure is not well defined. This study aims to investigate short- and long-term weight change of patients receiving interferon-free antiviral treatment for chronic hepatitis C. The German Hepatitis C-registry (DHC-R) is a national multicenter real-world cohort. A total of 5111 patients were followed prospectively after DAA treatment for up to 3 years. Weight change compared to baseline was analyzed at end of treatment and at years 1, 2, and 3 after completion of antiviral therapy. Regression analysis was performed to identify baseline predictors for weight change. While there was no relevant mean weight change (−0.2 kg, SD 4.3 kg) at the end of antiviral treatment, weight started to increase during long-term follow-up reaching +1.7 kg (SD 8.0 kg, p < 0.001) compared to baseline at 3 years (follow-up year 3, FU3) after completion of antiviral therapy. 48%, 31%, and 22% of patients had a weight gain greater than 1, 3, and 5 kg at FU3, respectively. During follow-up, a body mass index (BMI) <30 proved to be the only consistent predictor for weight gain. DAA treatment is followed by a substantial weight gain (+3 kg or more) in one-third of the patients during long-term follow-up. Non-obese patients seemed to be most vulnerable to weight gain. The body compartment involved in weight gain as well as the mechanism of weight gain remain to be elucidated.
Collapse
|
25
|
Kobayashi T, Yasuno T, Takahashi K, Nakamura S, Mashino T, Ohe T. Novel pyridinium-type fullerene derivatives as multitargeting inhibitors of HIV-1 reverse transcriptase, HIV-1 protease, and HCV NS5B polymerase. Bioorg Med Chem Lett 2021; 49:128267. [PMID: 34271071 DOI: 10.1016/j.bmcl.2021.128267] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/05/2021] [Accepted: 07/11/2021] [Indexed: 11/26/2022]
Abstract
In the present study, we newly synthesized four types of novel fullerene derivatives: pyridinium/ethyl ester-type derivatives 3b-3l, pyridinium/carboxylic acid-type derivatives 4a, 4e, 4f, pyridinium/amide-type derivative 5a, and pyridinium/2-morpholinone-type derivative 6a. Among the assessed compounds, cis-3c, cis-3d, trans-3e, trans-3h, cis-3l, cis-4e, cis-4f, trans-4f, and cis-5a were found to inhibit HIV-1 reverse transcriptase (HIV-RT), HIV-1 protease (HIV-PR), and HCV NS5B polymerase (HCV NS5B), with IC50 values observed in the micromolar range. Cellular uptake of pyridinium/ethyl ester-type derivatives was higher than that of corresponding pyridinium/carboxylic acid-type derivatives and pyridinium/amide-type derivatives. This result might indicate that pyridinium/ethyl ester-type derivatives are expected to be lead compounds for multitargeting drugs to treat HIV/HCV coinfection.
Collapse
Affiliation(s)
- Toi Kobayashi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Takumi Yasuno
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Kyoko Takahashi
- Department of Chemistry, Nippon Medical School, 1-7-1 Kyonan-cho, Musashino, Tokyo, Japan
| | - Shigeo Nakamura
- Department of Chemistry, Nippon Medical School, 1-7-1 Kyonan-cho, Musashino, Tokyo, Japan
| | - Tadahiko Mashino
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Tomoyuki Ohe
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Keio University, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan.
| |
Collapse
|
26
|
Burchill MA, Salomon MP, Golden-Mason L, Wieland A, Maretti-Mira AC, Gale M, Rosen HR. Single-cell transcriptomic analyses of T cells in chronic HCV-infected patients dominated by DAA-induced interferon signaling changes. PLoS Pathog 2021; 17:e1009799. [PMID: 34370798 PMCID: PMC8376199 DOI: 10.1371/journal.ppat.1009799] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 08/19/2021] [Accepted: 07/13/2021] [Indexed: 12/13/2022] Open
Abstract
Chronic infection with HCV is manifested by dysregulation of innate immune responses and impaired T cell function at multiple levels. These changes may impact susceptibility to other infections, responsiveness to antiviral therapies, vaccine responsiveness, and development of complications such as hepatocellular carcinoma. Highly effective direct-acting antiviral (DAA) therapy has revolutionized the management of chronic HCV, with expected cure rates exceeding 95%. DAA treatment represents a unique opportunity to investigate to what extent elimination of viral replication and chronic antigen stimulation can restore immunologic phenotype. In this study we interrogated the global transcriptional profile of isolated peripheral blood T cells before, during and after IFN-free DAA therapy using single-cell mRNA sequencing. Our results demonstrate that T cells mapped at single-cell resolution have dramatic transcriptomic changes early after initiation of DAA and many of these changes are sustained after completion of DAA therapy. Specifically, we see a significant reduction in transcripts associated with innate immune activation and interferon signaling such as ISG15, ISG20, IFIT3, OAS and MX1 in many different T cell subsets. Furthermore, we find an early upregulation of a gene involved in suppression of immune activation, DUSP1, in circulating T cells. Conclusion: This study provides the first in-depth transcriptomic analysis at the single-cell level of patients undergoing DAA therapy, demonstrating that IFN-free antiviral therapy in chronic HCV infection induces hitherto unrecognized shifts in innate immune and interferon signaling within T cell populations early, during, and long-term after treatment. The present study provides a rich data source to explore the effects of DAA treatment on bulk T cells.
Collapse
Affiliation(s)
- Matthew A. Burchill
- Division of Gastroenterology & Hepatology, University of Colorado, Aurora, Colorado, United States of America
| | - Matthew P. Salomon
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
| | - Lucy Golden-Mason
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Research Center for Liver Disease (RCLD), University of Southern California, Los Angeles, California, United States of America
| | - Amanda Wieland
- Division of Gastroenterology & Hepatology, University of Colorado, Aurora, Colorado, United States of America
| | - Ana C. Maretti-Mira
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Research Center for Liver Disease (RCLD), University of Southern California, Los Angeles, California, United States of America
| | - Michael Gale
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Hugo R. Rosen
- Department of Medicine, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Division of Gastrointestinal and Liver Diseases, Keck School of Medicine, University of Southern California, Los Angeles, California, United States of America
- Research Center for Liver Disease (RCLD), University of Southern California, Los Angeles, California, United States of America
- * E-mail:
| |
Collapse
|
27
|
Berkan-Kawińska A, Piekarska A, Janczewska E, Lorenc B, Tudrujek-Zdunek M, Tomasiewicz K, Berak H, Horban A, Zarębska-Michaluk D, Pabjan P, Buczyńska I, Pazgan-Simon M, Dybowska D, Halota W, Pawłowska M, Klapaczyński J, Mazur W, Czauż-Andrzejuk A, Socha Ł, Laurans Ł, Garlicki A, Sitko M, Jaroszewicz J, Citko J, Dobracka B, Krygier R, Białkowska-Warzecha J, Tronina O, Belica-Wdowik T, Baka-Ćwierz B, Flisiak R. Real-world effectiveness and safety of direct-acting antivirals in patients with cirrhosis and history of hepatic decompensation: Epi-Ter2 Study. Liver Int 2021; 41:1789-1801. [PMID: 33655628 DOI: 10.1111/liv.14858] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 01/30/2021] [Accepted: 02/18/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND AND AIMS The aim of this study was to assess the real-life effectiveness and safety of direct acting antivirals (DAAs) in patients with cirrhosis and history of hepatic decompensation compared to those with compensated cirrhosis. METHOD Data of patients treated with DAAs and included in the EpiTer-2 database (N = 10 152) were collected retrospectively. The primary endpoint was sustained viral response (SVR) at 12 weeks posttreatment. Patients were also evaluated in terms of liver-related adverse events and treatment modification/discontinuation. RESULTS The overall SVR rate was 91.4% in the intent to treat (ITT) analysis and 95.2% in the per-protocol (PP) analysis (P < .001). Patients with decompensated cirrhosis had lower SVR rates compared to those with compensated cirrhosis in ITT analysis (86.4% vs 92.0%, P < .001), while not in PP analysis (92.9% vs 95.5%, P > .05). Adverse events (AE) occurred 45.6% and 29.3% of patients with decompensated and compensated cirrhosis (P < .001). Patients with decompensated cirrhosis were at higher risk of death (5.4% vs 0.9%; P < .0001) or liver decompensation (21.5% vs 1.3%; P < .0001). Treatment with protease inhibitors was not associated with hepatic decompensation (P = .3). Only 82.6% of patients with decompensated cirrhosis completed DAA treatment (vs 92.8% in compensated cirrhotics; P < .0001). CONCLUSION Despite higher frequency of AE and treatment modifications, once completed, DAAs yield comparable results for patients with decompensated and compensated cirrhosis. High rate of serious adverse events in patients with advanced liver disease treated with PI may not be related to the detrimental effect of the medications, but rather to the disease itself.
Collapse
Affiliation(s)
| | - Anna Piekarska
- Department of Infectious Diseases and Hepatology, Medical University of Lodz, Łódź, Poland
| | - Ewa Janczewska
- Medical University of Silesia, School of Public Health in Bytom, Department of Basic Medical Sciences, Bytom, Poland.,ID Clinic, Hepatology Outpatient Department, Mysłowice, Poland
| | - Beata Lorenc
- Department of Infectious Diseases, Pomeranian Center of Infectious Diseases, Medical University of Gdansk, Gdansk, Poland
| | | | | | - Hanna Berak
- Hospital for Infectious Diseases, Warsaw Medical University, Warszawa, Poland
| | - Andrzej Horban
- Hospital for Infectious Diseases, Warsaw Medical University, Warszawa, Poland
| | - Dorota Zarębska-Michaluk
- Department of Infectious Disease, Voivodeship Hospital, Jan Kochanowski University, Kielce, Poland
| | - Paweł Pabjan
- Department of Infectious Disease, Voivodeship Hospital, Jan Kochanowski University, Kielce, Poland
| | - Iwona Buczyńska
- Department of Infectious Diseases and Hepatology, Wroclaw Medical University, Wrocław, Poland
| | - Monika Pazgan-Simon
- Department of Infectious Diseases and Hepatology, Wroclaw Medical University, Wrocław, Poland
| | - Dorota Dybowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Waldemar Halota
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Małgorzata Pawłowska
- Department of Infectious Diseases and Hepatology, Faculty of Medicine, Nicolaus Copernicus University, Bydgoszcz, Poland
| | - Jakub Klapaczyński
- Department of Internal Medicine and Hepatology, Central Clinical Hospital of Internal Affairs and Administration, Warszawa, Poland
| | - Włodzimierz Mazur
- Clinical Department of Infectious Diseases, Medical University of Silesia, Chorzów, Poland
| | - Agnieszka Czauż-Andrzejuk
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, Białystok, Poland
| | - Łukasz Socha
- Department of Infectious Diseases, Hepatology and Liver Transplantation, Pomeranian Medical University, Szczecin, Poland
| | - Łukasz Laurans
- Department of Infectious Diseases, Hepatology and Liver Transplantation, Pomeranian Medical University, Szczecin, Poland.,Multidisciplinary Regional Hospital, Gorzów Wielkopolski, Poland
| | - Aleksander Garlicki
- Department of Infectious and Tropical Diseases, Collegium Medicum, Jagiellonian University, Kraków, Poland
| | - Marek Sitko
- Department of Infectious and Tropical Diseases, Collegium Medicum, Jagiellonian University, Kraków, Poland
| | - Jerzy Jaroszewicz
- Department of Infectious Diseases and Hepatology, Medical University of Silesia in Katowice, Bytom, Poland
| | | | | | - Rafał Krygier
- NZOZ Gemini, Infectious Diseases and Hepatology Outpatient Clinic, Zychlin, Poland
| | | | - Olga Tronina
- Department of Transplantation Medicine, Nephrology, and Internal Diseases, Medical University of Warsaw, Warszawa, Poland
| | - Teresa Belica-Wdowik
- Regional Center for Diagnosis and Treatment of Viral Hepatitis and Hepatology, John Paul II Hospital, Kraków, Poland
| | - Barbara Baka-Ćwierz
- Regional Center for Diagnosis and Treatment of Viral Hepatitis and Hepatology, John Paul II Hospital, Kraków, Poland
| | - Robert Flisiak
- Department of Infectious Diseases and Hepatology, Medical University of Białystok, Białystok, Poland
| |
Collapse
|
28
|
Khalsa JH, Mathur P. Hepatitis C Virus Infection in Persons Who Inject Drugs in the Middle East and North Africa: Intervention Strategies. Viruses 2021; 13:1363. [PMID: 34372569 PMCID: PMC8310161 DOI: 10.3390/v13071363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/04/2021] [Accepted: 07/11/2021] [Indexed: 12/12/2022] Open
Abstract
There is a high incidence and prevalence of hepatitis C viral infection in persons with or without substance use disorders (SUDs) in the Middle East and North Africa (MENA) region, but only a small number receive comprehensive care. Highly effective direct-acting antiviral (DAA) medications are available at substantially lower costs; however, complete elimination of the hepatitis C virus (HCV) can only be achieved if integrated care strategies target those at highest risk for HCV infection and transmission and improve access to care. Due to the high prevalence of SUD in the MENA region, strategies to eliminate HCV must focus on integrated healthcare across multiple subspecialties, including addiction medicine, psychiatry, infectious diseases, hepatology, and social work. In this invited manuscript, we review the epidemiology of HCV in the MENA region and highlight intervention strategies to attain the WHO's goal of HCV eradication by 2030.
Collapse
Affiliation(s)
- Jag H. Khalsa
- Medical Consequences of Drug Abuse and Infections Branch, Division of Therapeutics and Medical Consequences, National Institute on Drug Abuse, National Institutes of Health, Bethesda, MD 20892, USA
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Poonam Mathur
- Institute of Human Virology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| |
Collapse
|
29
|
Almeida PH, Matielo CEL, Curvelo LA, Rocco RA, Felga G, Della Guardia B, Boteon YL. Update on the management and treatment of viral hepatitis. World J Gastroenterol 2021; 27:3249-3261. [PMID: 34163109 PMCID: PMC8218370 DOI: 10.3748/wjg.v27.i23.3249] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 03/11/2021] [Accepted: 04/22/2021] [Indexed: 02/06/2023] Open
Abstract
This review aims to summarize the current evidence on the treatment of viral hepatitis, focusing on its clinical management. Also, future treatment options and areas of potential research interest are detailed. PubMed and Scopus databases were searched for primary studies published within the last ten years. Keywords included hepatitis A virus, hepatitis B virus (HBV), hepatitis C virus, hepatitis D virus (HDV), hepatitis E virus, and treatment. Outcomes reported in the studies were summarized, tabulated, and synthesized. Significant advances in viral hepatitis treatment were accomplished, such as the advent of curative therapies for hepatitis C and the development and improvement of hepatitis A, hepatitis B, and hepatitis E vaccination. Drugs that cure hepatitis B, going beyond viral suppression, are so far unavailable; however, targeted antiviral drugs against HBV (immunomodulatory therapies and gene silencing technologies) are promising approaches to eradicating the virus. Ultimately, high vaccination coverage and large-scale test-and-treat programmes with high screening rates may eliminate viral hepatitis and mitigate their burden on health systems. The development of curative hepatitis C treatment renewed the enthusiasm for curing hepatitis B, albeit further investigation is required. Novel therapeutic options targeting HDV life cycle are currently under clinical investigation.
Collapse
Affiliation(s)
| | - Celso E L Matielo
- Liver Unit, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | - Lilian A Curvelo
- Liver Unit, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | - Rodrigo A Rocco
- Liver Unit, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | - Guilherme Felga
- Liver Unit, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
| | | | - Yuri L Boteon
- Liver Unit, Hospital Israelita Albert Einstein, São Paulo 05652-900, Brazil
- Instituto Israelita de Ensino e Pesquisa Albert Einstein, Faculdade Israelita de Ciências da Saúde Albert Einstein, São Paulo 05652-900, Brazil
| |
Collapse
|
30
|
Jeong S, Lee YS, Kim K, Yoon JS, Kim S, Ha J, Kang I, Choe W. 2-O-Methylhonokiol Suppresses HCV Replication via TRAF6-Mediated NF-kB Activation. Int J Mol Sci 2021; 22:ijms22126499. [PMID: 34204438 PMCID: PMC8234778 DOI: 10.3390/ijms22126499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/15/2021] [Accepted: 06/15/2021] [Indexed: 01/09/2023] Open
Abstract
Hepatitis C virus (HCV) is associated with various liver diseases. Chronic HCV infection is characterized by an abnormal host immune response. Therefore, it is speculated that to suppress HCV, a well-regulated host immune response is necessary. 2-O-methylhonokiol was identified by the screening of anti-HCV compounds using Renilla luciferase assay in Huh 7.5/Con 1 genotype 1b replicon cells. Here, we investigated the mechanism by which 2-O-methylhonokiol treatment inhibits HCV replication using real-time PCR. Our data shows that treatment with 2-O-methylhonokiol activated innate immune responses via nuclear factor kappa-light-chain-enhancer of activated B cells (NF-kB) pathway. Additionally, the immunoprecipitation result shows that treatment with 2-O-methylhonokiol augmented tumor necrosis factor receptor (TNFR)-associated factor 6 (TRAF6) by preventing p62 from binding to TRAF6, resulting in reduced autophagy caused by HCV. Finally, we reproduced our data with the conditioned media from 2-O-methylhonokiol-treated cells. These findings strongly suggest that 2-O-methylhonokiol enhances the host immune response and suppresses HCV replication via TRAF6-mediated NF-kB activation.
Collapse
Affiliation(s)
- Suyun Jeong
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
| | - Young-seok Lee
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
| | - Kiyoon Kim
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Ji-su Yoon
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
| | - Sungsoo Kim
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Joohun Ha
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Insug Kang
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
| | - Wonchae Choe
- Department of Biomedical Science, Graduate School, Kyung Hee University, Seoul 02447, Korea; (S.J.); (Y.-s.L.); (J.-s.Y.); (S.K.); (J.H.); (I.K.)
- Department of Biochemistry and Molecular Biology, School of Medicine, Kyung Hee University, Seoul 02447, Korea;
- Correspondence: ; Tel.: +82-2-961-0940
| |
Collapse
|
31
|
Sarrazin C, Boesecke C, Golsabahi‐Broclawski S, Moog G, Negro F, Silaidos C, Patel P, Lohmann K, Spinner CD, Walcher S, Wedemeyer H, Wörns M. Hepatitis C virus: Current steps toward elimination in Germany and barriers to reaching the 2030 goal. Health Sci Rep 2021; 4:e290. [PMID: 34136654 PMCID: PMC8177898 DOI: 10.1002/hsr2.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/24/2021] [Accepted: 04/13/2021] [Indexed: 11/25/2022] Open
Abstract
Hepatitis C virus (HCV) affects over 70 million people globally, with an estimated 399 000 HCV-related deaths in 2016. The World Health Organization (WHO) has set a goal to eliminate HCV by 2030. Despite the availability of direct-acting antivirals-highly effective and well-tolerated therapies for HCV-many patients infected with HCV in Germany have not initiated treatment, including a majority of those who are aware of their positive diagnosis. Barriers to screening, diagnosis, and treatment are major factors taking many countries off track for HCV elimination by 2030. Identifying country-specific barriers and challenges, particularly in at-risk populations such as people who inject drugs or men who have sex with men, has the potential to create tailored programs and strategies to increase access to screening or treatment and engage at-risk populations. This review aims to report the current steps toward HCV elimination in Germany, the country-specific barriers and challenges that will potentially prevent reaching the 2030 HCV elimination goal and describe good practice examples to overcome these barriers.
Collapse
Affiliation(s)
- Christoph Sarrazin
- Department of Internal Medicine and Liver CenterSt. Josefs‐Hospital Wiesbaden and Viral Hepatitis Research Group, Goethe‐University Hospital FrankfurtFrankfurtGermany
| | - Christoph Boesecke
- Department of Medicine IUniversity Hospital BonnBonnGermany
- German Centre for Infection Research (DZIF)Partner‐site Bonn‐CologneBonnGermany
| | | | - Gero Moog
- Gastroenterologische Praxis im MarienkrankenhausKasselGermany
| | - Francesco Negro
- Divisions of Gastroenterology and Hepatology and of Clinical PathologyGeneva University HospitalsGenevaSwitzerland
| | | | | | | | - Christoph D. Spinner
- Department of Internal Medicine II, School of Medicine, University Hospital Rechts der IsarTechnical University of MunichMunichGermany
- German Centre for Infection Research (DZIF), Partner Site MunichMunichGermany
| | | | - Heiner Wedemeyer
- Department of GastroenterologyHepatology and Endocrinology, Hannover Medical SchoolHannoverGermany
- Leberstiftungs‐GmbH DeutschlandHannoverGermany
| | - Marcus‐Alexander Wörns
- First Department of MedicineUniversity Medical Centre of the Johannes Gutenberg‐UniversityMainzGermany
- Cirrhosis Centre Mainz (CCM)University Medical Centre of the Johannes Gutenberg‐UniversityMainzGermany
| |
Collapse
|
32
|
Rai PK, Mueed Z, Chowdhury A, Deval R, Kumar D, Kamal MA, Negi YS, Pareek S, Poddar NK. Current Overviews on COVID-19 Management Strategies. Curr Pharm Biotechnol 2021; 23:361-387. [PMID: 33966618 DOI: 10.2174/1389201022666210509022313] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 01/02/2021] [Accepted: 02/08/2021] [Indexed: 02/08/2023]
Abstract
The coronavirus pandemic has hit the world lately and caused acute respiratory syndrome in humans. The causative agent of the disease was soon brought to focus by scientists as SARS-CoV-2 and later called a novel coronavirus by the general public. Due to the severity and rapid spread of the disease, WHO classifies the COVID-19 pandemic as the 6th public health emergency even after taking efforts like worldwide quarantine and restrictions. Since only symptomatic treatment is available, the best way to control the spread of the virus is by taking preventive measures. Various types of antigen/antibody detection kits and diagnostic methods are available for the diagnosis of COVID-19 patients. In recent years, various phytochemicals and repurposing drugs are showing a broad range of anti-viral activities with different modes of action have been identified. Repurposing drugs such as arbidol, hydroxychloroquine, chloroquine, lopinavir, favipiravir, remdesivir, hexamethylene amiloride, and dexamethasone, tocilizumab, interferon-β, neutralizing antibodies exhibit in vitro anti-coronaviral properties by inhibiting multiple processes in the virus life cycle. Various research groups are involved in drug trials and vaccine development. Plant-based anti-viral compounds such as baicalin, calanolides, curcumin, oxymatrine, matrine, and resveratrol exhibit different modes of action against a wide range of positive/negative sense-RNA/DNA virus, and future researches need to be conducted to ascertain their role, use in managing SARS-CoV-2. Thus, this article is an attempt to review the current understanding of COVID-19 acute respiratory disease and summarize its clinical features with their prospective control and various aspects of the therapeutic approach.
Collapse
Affiliation(s)
- Pankaj Kumar Rai
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Zeba Mueed
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Abhiroop Chowdhury
- School of Environment & Sustainability, O.P. Jindal Global University, Sonipat, Haryana, India
| | - Ravi Deval
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Dinesh Kumar
- Department of Biotechnology, Invertis University, Bareilly, Uttar Pradesh, India
| | - Mohammad A Kamal
- West China School of Nursing / Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu 610041, Sichuan. China
| | - Yogeshwar Singh Negi
- Department of Biosciences, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
| | - Shubhra Pareek
- Department of Chemistry, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
| | - Nitesh Kumar Poddar
- Department of Biosciences, Manipal University Jaipur, DehmiKalan, Jaipur-Ajmer Expressway, Jaipur-303007, Rajasthan, India
| |
Collapse
|
33
|
Aghemo A, Alberti A, Andreone P, Angelico M, Brunetto MR, Chessa L, Ciancio A, Craxì A, Gaeta GB, Galli M, Gasbarrini A, Giorgini A, Grilli E, Lampertico P, Lichtner M, Milella M, Morisco F, Persico M, Pirisi M, Puoti M, Raimondo G, Romano A, Russello M, Sangiovanni V, Schiavini M, Serviddio G, Villa E, Vinci M, De Michina A, Gallinaro V, Gualberti G, Roscini AS, Zignego AL. Effectiveness and safety of glecaprevir/pibrentasvir in chronic hepatitis C patients: Results of the Italian cohort of a post-marketing observational study. Dig Liver Dis 2021; 53:612-619. [PMID: 32917546 DOI: 10.1016/j.dld.2020.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 08/05/2020] [Accepted: 08/07/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIMS The MARS post-marketing, observational study evaluates glecaprevir/pibrentasvir in a large population of Italian patients who are infected with HCV. PATIENTS AND METHODS Achievement of SVR12 was the primary endpoint in the overall population and by subpopulations of interest (treatment-naïve and treatment-experienced patients, subjects infected with different HCV genotype/sub-genotype, cirrhotic and non-cirrhotic patients, patients with different severity of fibrosis, patients with an APRI score ≥1, subjects with comorbidities, HIV-coinfected patients, elderly patients and people who use drugs). Safety and quality of life (assessed by SF-36 and Work Productivity and Activity Impairment) were also evaluated. RESULTS The SVR12 rate was 99.4% (319/321; 95% CI: 97.8-99.8%) in the core population with sufficient follow-up (n = 321), 99.7% (289/290) in 8-week treated patients, and high (>96%) across subgroups. Only three patients (0.9%) had treatment-related adverse events that led to treatment discontinuation. In total, 30.1% of patients showed an improvement of ≥2.5 points in the Physical Component Summary of the SF-36 from baseline to the end of treatment, and this figure raised to 37.5% with the achievement of SVR12. Corresponding values for MCS were 42.2% and 42.8%, respectively. CONCLUSION Glecaprevir/pibrentasvir is safe and effective across subpopulations who are underserved in clinical trials.
Collapse
Affiliation(s)
- Alessio Aghemo
- Humanitas Clinical and Research Center IRCCS and Humanitas University
| | - Alfredo Alberti
- Dipartimento di Medicina Molecolare Università di Padova, 35122 Padova, Italy
| | - Pietro Andreone
- Dipartimento di Scienze Mediche, Materno Infantili e dell'Adulto, Università di Modena e Reggio Emilia, 41125 Modena, Italy
| | - Mario Angelico
- Dipartimento di Medicina - UOC di Epatologia, Fondazione PTV - Policlinico Tor Vergata, 00133 Roma, Italy
| | - Maurizia Rossana Brunetto
- Dipartimento di Medicina clinica e sperimentale Università di Pisa - UO Epatologia, Azienda Ospedaliero - Universitaria Pisana, 56126 Pisa, Italy
| | - Luchino Chessa
- Liver Unit, University Hospital, Monserrato, 09042 Cagliari, Italy
| | - Alessia Ciancio
- Dipartimento di Scienze Mediche, SC GastroEpatologia U, A.O.U. Città della Salute e della Scienza di Torino, Università di Medicina, 10126 Torino, Italy
| | - Antonio Craxì
- Dipartimento Biomedico di Medicina Interna e Specialistica - Reparto di Gastroenterologia, Azienda Ospedaliera Universitaria Policlinico P. Giaccone, 90127 Palermo, Italy
| | - Giovanni Battista Gaeta
- Dipartimento Salute Mentale e Fisica, UOC Malattie Infettive, Università degli Studi della Campania "Luigi Vanvitelli", 80138 Napoli, Italy
| | - Massimo Galli
- Dip. Scienze Biomediche e Cliniche L. Sacco - UNIMI, III Divisione Malattie Infettive, ASST Fatebenefratelli Sacco, 20131 Milano, Italy
| | - Antonio Gasbarrini
- UOC Medicina Interna e Gastroenterologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, 00136 Roma, Italy
| | - Alessia Giorgini
- Dipartimento di Malattie Epatologiche, Gastroenterologiche e Metaboliche, Reparto U.O di Epatologia e Gastroenterologia, ASST Santi Paolo e Carlo, 20142 Milano, Italy
| | - Elisabetta Grilli
- Dipartimento Clinico UOC Immunodeficienze Virali, INMI Lazzaro Spallanzani IRCCS, 00149 Roma, Italy
| | - Pietro Lampertico
- CRC "A. M. and A. Migliavacca" Center for the Study of Liver Disease, Division of Gastroenterology and Hepatology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Università degli Studi di Milano, 20122 Milan, Italy
| | - Miriam Lichtner
- Department of Public Health and Infectious Disease, Sapienza University of Rome, Polo Pontino, SM Goretti Hospital, 04100 Latina, Italy
| | - Michele Milella
- DIMO - U.O.C. di Malattie Infettive, Azienda Universitaria Ospedaliera Consorziale-Policlinico Bari, 70124 Bari, Italy
| | - Filomena Morisco
- Dipartimento di Medicina Clinica e Chirurgica, UOC di Gastroenterologia ed Epatologia, Università Federico II, 80138 Napoli, Italy
| | - Marcello Persico
- Dipartimento di Medicina Clinica Medica, Epatologica e Lungodegenza, AOU OO. RR. San Giovanni di Dio Ruggi e D'Aragona, 84131 Salerno, Italy
| | - Mario Pirisi
- Università del Piemonte Orientale, Dipartimento di Medicina Traslazionale, 28100 Novara, Italy
| | - Massimo Puoti
- Dipartimento Medico Polispecialistico - SC Malattie Infettive - ASST Grande Ospedale Metropolitano Niguarda, 20162 Milano, Italy
| | - Giovanni Raimondo
- Dipartimento di Medicina Clinica e Sperimentale, UOC di Epatologia Clinica e Biomolecolare, Università ed AOU di Messina, 98125 Messina, Italy
| | - Antonietta Romano
- Dipartimento di Medicina (DIMED) UOC Clinica Medica 5, A. O. Di Padova, 35128 Padova, Italy
| | - Maurizio Russello
- Dipartimento Medicina Interna, UOSD Epatologia, Azienda Ospedaliera di Rilievo Nazionale e di Alta Specializzazione Garibaldi - Presidio Ospedaliero Garibaldi-Nesima, 95122 Catania, Italy
| | | | - Monica Schiavini
- 1° Divisione di Malattie Infettive, ASST-FBF- Sacco, 20131 Milano, Italy
| | - Gaetano Serviddio
- Unità Universitaria di Epatologia, OORR Ospedali Riuniti - Università degli Studi di Foggia, 71122 Foggia, Italy
| | - Erica Villa
- UC Gastroenterologia, Dipartimento di Specialità Mediche, Azienda Ospedaliera Universitaria di Modena, 41125 Modena, Italy
| | - Maria Vinci
- Dipartimento Medico Polispecialistico, S.C. Epatologia e Gastroenterologia, ASST Grande Ospadale Metropolitano Niguarda, 20162 Milano, Italy
| | | | | | | | | | - Anna Linda Zignego
- Dipartimento di Medicina Sperimentale e Clinica, Centro Interdipartimentale di Epatologia Università di Firenze e C.R.I.A. MASVE AOU Careggi, Firenze, Italy.
| | | |
Collapse
|
34
|
Tomiyasu H, Nakajima S, Kaku Y, Hirata M, Kataoka T, Nomura T, Kabashima K. A possible case of maculopapular eruption associated with glecaprevir/pibrentasvir treatment for chronic hepatitis C virus infection. JOURNAL OF CUTANEOUS IMMUNOLOGY AND ALLERGY 2021. [DOI: 10.1002/cia2.12166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Affiliation(s)
- Hiroka Tomiyasu
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
| | - Saeko Nakajima
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
| | - Yo Kaku
- Department of Dermatology Kagawa University Faculty of Medicine Takamatsu Japan
| | - Masahiro Hirata
- Department of Diagnostic Pathology Kyoto University Graduate School of Medicine Kyoto Japan
| | - Tatsuki Kataoka
- Department of Diagnostic Pathology Kyoto University Graduate School of Medicine Kyoto Japan
| | - Takashi Nomura
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
| | - Kenji Kabashima
- Department of Dermatology Kyoto University Graduate School of Medicine Kyoto Japan
- Singapore Immunology Network (SIgN) and Skin Research Institute of Singapore (SRIS) Agency for Science, Technology and Research (A*STAR) Singapore Singapore
| |
Collapse
|
35
|
Addressing HCV Elimination Barriers in Italy: Healthcare Resource Utilization and Cost Impact Using 8 Weeks' Glecaprevir/Pibrentasvir Therapy. Infect Dis Ther 2021; 10:763-774. [PMID: 33655410 PMCID: PMC7925258 DOI: 10.1007/s40121-021-00410-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 01/29/2021] [Indexed: 11/17/2022] Open
Abstract
Introduction In Italy, hepatitis C virus (HCV) elimination is achievable; however, barriers remain to achieving the World Health Organization’s elimination targets, and have become more pronounced with the spread of COVID-19. Glecaprevir/pibrentasvir (G/P) is a direct-acting antiviral therapy for HCV, approved for 8-week treatment in patients without cirrhosis, and with compensated cirrhosis (CC). Previously, 12 weeks of therapy was recommended for patients with CC. Shortened treatment may reduce the burden on healthcare resources, allowing more patients to be treated. This study presents the benefits that 8-week vs 12-week treatment with G/P may have in Italy. Methods A multicohort Markov model was used to assess the collective number of healthcare visits and time on treatment with 8-week vs 12-week G/P in the HCV-infected population of Italy from 2019 to 2030, using healthcare resource data from post-marketing observational studies of G/P. Increased treatment capacity and downstream clinical and economic benefits were also assessed assuming the reallocation of saved healthcare visits to treat more patients. Results Modeled outcomes showed that by 2030, 8-week treatment saved 27,006 years on therapy compared with 12-week treatment, with 21,065 fewer hepatologist visits. Reallocating these resources to treat more patients could increase capacity to treat 5064 (1.4%) more patients with 8 weeks of G/P, all with CC. This increased treatment capacity would further avoid 2257 cases of end-stage liver disease, 893 liver-related deaths, and provide net savings to the healthcare system of nearly €70 million. Conclusion The modeled comparisons between 8- and 12-week treatment with G/P show that shorter treatment duration can lead to greater time and resource savings, both in terms of healthcare visits and downstream costs. These benefits have the potential to enable the treatment of more patients to overcome elimination barriers in Italy through programs aimed to engage and treat targeted HCV populations.
Collapse
|
36
|
Abstract
Activation and viral control of the innate immune response are hallmarks of hepatitis C virus (HCV) infection and are major determinants of spontaneous clearance or progression to chronic infection and liver disease. In this review, we provide a contemporary overview of how HCV is sensed by the host cell to trigger innate immune activation and the mechanisms deployed by the virus to evade this response. Type I and III interferons (IFNs) are crucial mediators of antiviral innate immunity against HCV, and we specifically highlight the importance of IFN-λ host genetics for the outcome of HCV infection. Last, we focus on the proinflammatory responses elicited by HCV infection and describe our current understanding of how interleukin (IL)-1β signaling and cross talk between the IL-1β and IFN signaling pathways lead to sustained inflammation and increased risk of liver pathology.
Collapse
Affiliation(s)
- Johannes Schwerk
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, Washington 98109, USA
| | - Amina Negash
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, Washington 98109, USA
| | - Ram Savan
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, Washington 98109, USA
| | - Michael Gale
- Center for Innate Immunity and Immune Disease, Department of Immunology, University of Washington School of Medicine, Seattle, Washington 98109, USA
| |
Collapse
|
37
|
Pseudo-Dipeptide Bearing α,α-Difluoromethyl Ketone Moiety as Electrophilic Warhead with Activity against Coronaviruses. Int J Mol Sci 2021; 22:ijms22031398. [PMID: 33573283 PMCID: PMC7866854 DOI: 10.3390/ijms22031398] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 01/26/2021] [Indexed: 12/18/2022] Open
Abstract
The synthesis of α-fluorinated methyl ketones has always been challenging. New methods based on the homologation chemistry via nucleophilic halocarbenoid transfer, carried out recently in our labs, allowed us to design and synthesize a target-directed dipeptidyl α,α-difluoromethyl ketone (DFMK) 8 as a potential antiviral agent with activity against human coronaviruses. The ability of the newly synthesized compound to inhibit viral replication was evaluated by a viral cytopathic effect (CPE)-based assay performed on MCR5 cells infected with one of the four human coronaviruses associated with respiratory distress, i.e., hCoV-229E, showing antiproliferative activity in the micromolar range (EC50 = 12.9 ± 1.22 µM), with a very low cytotoxicity profile (CC50 = 170 ± 3.79 µM, 307 ± 11.63 µM, and 174 ± 7.6 µM for A549, human embryonic lung fibroblasts (HELFs), and MRC5 cells, respectively). Docking and molecular dynamics simulations studies indicated that 8 efficaciously binds to the intended target hCoV-229E main protease (Mpro). Moreover, due to the high similarity between hCoV-229E Mpro and SARS-CoV-2 Mpro, we also performed the in silico analysis towards the second target, which showed results comparable to those obtained for hCoV-229E Mpro and promising in terms of energy of binding and docking pose.
Collapse
|
38
|
Shih WL, Fang CT, Chen PJ. Chapter XX Antiviral Treatment and Cancer Control. Recent Results Cancer Res 2021; 217:325-354. [PMID: 33200371 DOI: 10.1007/978-3-030-57362-1_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Hepatitis B virus (HBV), hepatitis C virus (HCV), human papilloma virus (HPV), Epstein-Barr virus (EBV), human T-cell lymphotropic virus type 1 (HTLV-1), Kaposi's sarcoma-associated herpesvirus (KSHV), and Merkel cell polyomavirus (MCV) contribute to about 10-15% global burden of human cancers. Conventional chemotherapy or molecular target therapies have been used to treat virus-associated cancers. However, a more proactive approach would be the use of antiviral treatment to suppress or eliminate viral infections to prevent the occurrence of cancer in the first place. Antiviral treatments against chronic HBV and HCV infection have achieved this goal, with significant reduction in the incidence of hepatocellular carcinoma in treated patients. Antiviral treatments for EBV, KSHV, and HTLV-1 had limited success in treating refractory EBV-associated lymphoma and post-transplant lymphoproliferative disorder, KSHV-associated Kaposi's sarcoma in AIDS patients, and HTLV-1-associated acute, chronic, and smoldering subtypes of adult T-cell lymphoma, respectively. Therapeutic HPV vaccine and RNA interference-based therapies for treating HPV-associated infection or cervical cancers also showed some encouraging results. Taken together, antiviral therapies have yielded promising results in cancer prevention and treatment. More large-scale studies in a real-world setting are necessary to confirm the efficacy of antiviral therapy. Further investigation for more effective and convenient antiviral regimens warrants more attention.
Collapse
Affiliation(s)
- Wei-Liang Shih
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Chi-Tai Fang
- Institute of Epidemiology and Preventive Medicine, National Taiwan University, Taipei, Taiwan
| | - Pei-Jer Chen
- Institute of Clinical Medicine, National Taiwan University, Taipei, Taiwan.
| |
Collapse
|
39
|
Sulkowski M, Cheng WH, Marx S, Sanchez Gonzalez Y, Strezewski J, Reau N. Estimating the Year Each State in the United States Will Achieve the World Health Organization's Elimination Targets for Hepatitis C. Adv Ther 2021; 38:423-440. [PMID: 33145648 PMCID: PMC7609357 DOI: 10.1007/s12325-020-01535-3] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Accepted: 10/14/2020] [Indexed: 12/12/2022]
Abstract
Introduction Although hepatitis C virus (HCV) infection remains a major clinical, economic, and societal burden, the development of curative antiviral therapy may accelerate the path toward elimination. This analysis assessed the progress of United States (US) states towards achieving the World Health Organization’s (WHO) 2030 HCV elimination targets for incidence, mortality, diagnosis, and treatment. Methods A previously published Markov model was used to simulate HCV progression over time to estimate the path to HCV elimination in each state based on prevalence, annual treatment, and diagnosis inputs from two large US laboratory datasets from January 2013 to December 2017. State-specific fibrosis stage restrictions on treatment in 2017 were included. The model estimated the year individual states would meet the WHO targets for diagnosing 90% of the HCV-infected population, treating 80% of the eligible population, reducing new HCV infections by 80%, and reducing HCV-related deaths by 65%. The minimum number of annual treatments needed between 2020 and 2030 to achieve the WHO treatment target was also calculated. Results Overall, the USA is projected to achieve HCV elimination by 2037, with individual targets related to mortality, diagnosis, treatment, and incidence being achieved by 2020, 2027, 2033, and 2037, respectively. Three states (Connecticut, South Carolina, and Washington) are on track to meet all four elimination targets by 2030, and 18 states are not expected to meet these targets before 2040. The estimated annual number of treatments required during 2020–2030 nationally to reach the WHO treatment target is 173,514. Conclusion With the exception of three states, the USA is not on target to meet the WHO 2030 elimination targets and 35% are off track by 10 years or more. Strategies must be implemented to reduce overall prevalence by preventing new infections, increasing rates of screening, improving linkage to care, and implementing unfettered access to curative therapy. Electronic supplementary material The online version of this article (10.1007/s12325-020-01535-3) contains supplementary material, which is available to authorized users.
Collapse
|
40
|
Parmar P, Shafran SD, Borgia SM, Doucette K, Cooper CL. Hepatitis C direct-acting antiviral outcomes in patients 75 years and older. JGH OPEN 2020; 5:253-257. [PMID: 33553664 PMCID: PMC7857276 DOI: 10.1002/jgh3.12480] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/07/2020] [Accepted: 12/08/2020] [Indexed: 12/17/2022]
Abstract
Background and Aim Elderly patients with hepatitis C virus (HCV) infection have worse interferon‐based treatment outcomes than young patients. Direct‐acting antiviral (DAA) regimens have enabled the treatment of previously difficult‐to‐cure populations. There are few studies that specifically assess DAA treatment outcomes in patients over 75 years of age. Methods Design: This was a cohort study. Setting: The setting was three Canadian HCV specialty sites. Participants: Patients aged 75 years and older and treated with DAA without interferon were enrolled. Measurements: Patient demographics, liver fibrosis by transient elastography, treatment regimen, and treatment outcome data were collected. Results The mean age of 78 patients in our analysis was 78.6 years (SD 3.5; range: 75–88 years). The most common genotype was 1b (35%). The most frequently utilized regimens included sofosbuvir‐velpatasvir (33%) and ledipasvir‐sofosbuvir (32%). Ribavirin was included for 17% of recipients. Sustained virological response (SVR) was achieved in 94% of patients (69% of those receiving ribavirin and 98% of patients on ribavirin‐free regimens). Ribavirin toxicity contributed to the lower SVR rates in ribavirin‐exposed patients. Ribavirin dosage was decreased in three patients and ultimately discontinued in two of these patients. All treatment was discontinued in another two patients. Conclusion Ribavirin‐free DAA therapy is safe and achieves SVR rates in older adults comparable to those described in the general population. RBV inclusion frequently results in complications, often leads to treatment modification or interruption, and does not improve SVR rates in those with advanced age.
Collapse
Affiliation(s)
- Parmvir Parmar
- Department of Medicine University of Ottawa Ottawa Ontario Canada.,The Ottawa Hospital Research Institute Ottawa Ontario Canada
| | - Stephen D Shafran
- Department of Medicine University of Alberta Edmonton Alberta Canada
| | - Sergio M Borgia
- William Osler Health Centre Brampton Civic Hospital Brampton Ontario Canada
| | - Karen Doucette
- Department of Medicine University of Alberta Edmonton Alberta Canada
| | - Curtis L Cooper
- Department of Medicine University of Ottawa Ottawa Ontario Canada.,The Ottawa Hospital Research Institute Ottawa Ontario Canada
| |
Collapse
|
41
|
Gitto S, Cursaro C, Bartoli A, Margotti M, Andreone P. Hepatitis C: clinical management and debated issues. Minerva Med 2020; 112:228-237. [PMID: 33319975 DOI: 10.23736/s0026-4806.20.07208-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hepatitis C virus represents an important global health issue with 71 million of infected people in the word. Direct-acting antivirals are quite new molecules that hit specific Hepatitis C virus proteins useful for viral replication and assembly. Notably, Direct-acting antivirals bring to high sustained virological response rates showing also a great safety profile. This treatment revolution had an impact on transplantation world, in fact the number of liver transplants due to Hepatitis C virus-related cirrhosis and hepatocellular carcinoma is quickly decreasing. Even if this therapy has achieved excellent results in terms of morbility and mortality rates' reduction, there are some debated issues to consider. In the present review the main clinical challenges in every-day management of Hepatitis C virus patients treated with Direct-acting antivirals and the debated effects of viral clearance (metabolic, cardiovascular, immunologic and neoplastic) are discussed. The detection of barriers that can preclude the delivery of Hepatitis C virus care, is the most complex challenge for the scientific community. To obtain the Hepatitis C virus global eradication by 2030, as the World Health Organization has set, will be complex and laborious and will need a further multilevel effort.
Collapse
Affiliation(s)
- Stefano Gitto
- Unit of Internal Medicine and Liver, University Hospital Careggi, Florence, Italy
| | - Carmela Cursaro
- Unit of Internal and Metabolic Medicine, University Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandra Bartoli
- Unit of Internal and Metabolic Medicine, University Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Marzia Margotti
- Unit of Internal and Metabolic Medicine, University Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy
| | - Pietro Andreone
- Unit of Internal and Metabolic Medicine, University Hospital of Modena, University of Modena and Reggio Emilia, Modena, Italy -
| |
Collapse
|
42
|
Mekonnen ZA, Masavuli MG, Yu W, Gummow J, Whelan DM, Al-Delfi Z, Torresi J, Gowans EJ, Grubor-Bauk B. Enhanced T Cell Responses Induced by a Necrotic Dendritic Cell Vaccine, Expressing HCV NS3. Front Microbiol 2020; 11:559105. [PMID: 33343515 PMCID: PMC7739890 DOI: 10.3389/fmicb.2020.559105] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 10/28/2020] [Indexed: 12/21/2022] Open
Abstract
A vaccine that induces potent, broad and sustained cell-mediated immunity, resulting in effective memory has the potential to restrict hepatitis C (HCV) virus infection. Early, multi-functional CD4+ and CD8+ T cell responses against non-structural protein 3 (NS3) have been associated with HCV clearance. Necrotic cells generate strong immune responses and represent a major antigenic source used by dendritic cells (DC) for processing and presentation, but there is conflicting evidence as to their immunogenicity in vaccination. Immunization with DC loaded with viral antigens has been done in the past, but to date the immunogenicity of live vs. necrotic DC vaccines has not been investigated. We developed a DC2.4 cell line stably expressing HCV NS3, and compared the NS3-specific responses of live vs. necrotic NS3 DC. Vaccination of mice with necrotic NS3 DC increased the breadth of T-cell responses and enhanced the production of IL-2, TNF-α, and IFN-γ by effector memory CD4+ and CD8+T cells, compared to mice vaccinated with live NS3 DC. A single dose of necrotic NS3 DC vaccine induced a greater influx and activation of cross-presenting CD11c+ CD8α+ DC and necrosis-sensing Clec9A+ DC in the draining lymph nodes. Furthermore, using a hydrodynamic challenge model necrotic NS3 DC vaccination resulted in enhanced clearance of NS3-positive hepatocytes from the livers of vaccinated mice. Taken together, the data demonstrate that necrotic DC represent a novel and exciting vaccination strategy capable of inducing broad and multifunctional T cell memory.
Collapse
Affiliation(s)
- Zelalem A Mekonnen
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Makutiro G Masavuli
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Wenbo Yu
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia.,Centre for Cancer Biology, University of South Australia, Adelaide, SA, Australia
| | - Jason Gummow
- Gene Silencing and Expression Laboratory, Robinson Research Institute, The University of Adelaide, Adelaide, SA, Australia
| | - Dawn M Whelan
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Zahraa Al-Delfi
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Joseph Torresi
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Eric J Gowans
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Branka Grubor-Bauk
- Viral Immunology Group, Discipline of Surgery, Basil Hetzel Institute for Translational Medicine, University of Adelaide, Adelaide, SA, Australia
| |
Collapse
|
43
|
Chronic hepatitis C virus infection in the Czech Republic and Slovakia: an analysis of patient and virus characteristics. Int J Public Health 2020; 65:1723-1735. [PMID: 33040165 DOI: 10.1007/s00038-020-01496-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 09/18/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022] Open
Abstract
OBJECTIVES The MOSAIC study gathered data on chronic hepatitis C virus (HCV) infection and its treatment in various countries worldwide. Here we summarise patient and HCV characteristics in the Czech Republic and Slovakia. METHODS MOSAIC was an observational study that included patients with chronic HCV infection untreated at the time of enrolment. Study collected and descriptively analysed patient demographics, disease stage and viral characteristics. Data were collected between February 2014 to October 2014. RESULTS Among 220 patients enrolled, 51.4% were treatment-naïve. The most prevalent HCV genotype was G1 (78.4%), followed by G3 (19.7%). Higher prevalence of G1 was found in treatment-experienced patients (94.3%) compared to treatment-naïve (63.4%). Most participants (67.7%) presented viral RNA load of ≥ 800,000 IU/mL. Liver cirrhosis was reported in 24.5% of patients. Higher HCV RNA load and duration of HCV infection correlated with the degree of liver fibrosis. Anti-HCV interferon-based treatments were initiated in 88.2% of participants. CONCLUSIONS The study confirmed significant changes in the HCV genotypes partition with G3 genotype rapidly increasing in both countries, with possible impact on the WHO eradication initiative and treatment selection.
Collapse
|
44
|
Lu Y, Yang X, Zhang L. Domain I of hepatitis C virus NS5A associates with ACBD3 in a genotype-dependent manner. Microbiol Immunol 2020; 64:574-577. [PMID: 32108375 DOI: 10.1111/1348-0421.12784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/21/2020] [Accepted: 02/25/2020] [Indexed: 11/30/2022]
Abstract
Previously, it was found that the hepatitis C virus NS5A interacted with ACBD3 in a genotype-dependent manner. However, the region in NS5A responsible for association with ACBD3 is not clear. Domain I of NS5A was identified as critical for ACBD3 binding. By comparing the differences of amino acids in domain I from different genotypes of NS5A, it was found that key amino acids potentially corresponded to the affinity of the NS5A-ACBD3 interaction. The findings not only revealed that domain I of NS5A associates with ACBD3 but they also shed mechanistic light on how NS5A is associated with ACBD3 in a genotype-dependent manner.
Collapse
Affiliation(s)
- Yue Lu
- School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Jinan, Shandong, China.,Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| | - Xiaojie Yang
- NHC Key Laboratory of Systems Biology of Pathogens, Institute of Pathogen Biology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Leiliang Zhang
- Institute of Basic Medicine, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong, China
| |
Collapse
|
45
|
Pham TTT, Ho DT, Nguyen T. Usefulness of Mac-2 binding protein glycosylation isomer in non-invasive probing liver disease in the Vietnamese population. World J Hepatol 2020; 12:220-229. [PMID: 32547689 PMCID: PMC7280857 DOI: 10.4254/wjh.v12.i5.220] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/01/2020] [Revised: 03/30/2020] [Accepted: 04/09/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Early diagnosis is critical for successful intervention before liver disease progresses to cirrhosis and hepatocellular carcinoma.
AIM To examine a novel biomarker for probing early liver disease quickly using an automated immunology system.
METHODS This was a cross-sectional study. 140 patients at various stages of liver disease were randomly selected. The cohort consisted of patients who were treatment naïve and currently undergoing therapy. We included patients with diverse liver disease etiologies. Mac-2 binding protein glycosylation isomer (M2BPGi) levels in addition to different clinical parameters, co-morbidities and transient elastography results were collected and compared.
RESULTS M2BPGi levels were significantly correlated with transient elastography for liver fibrosis staging across all disease etiologies. Statistically significant differences were observed in patients with F0-1; F2 and > F3 liver fibrosis. Further examination showed that M2BPGi levels were two-fold higher in F4 than F3 hepatitis C (HCV) patients. M2BPGi was observed to be etiology-specific and HCV patients had higher mean M2BPGi levels. We also observed significant correlations with aspartate aminotransferase to platelet ratio index and fibrosis-4 index as well as HBV DNA levels. Mean M2BPGi levels for HBV patients with a viral load lower than 2000 IU/mL was 1.75-fold lower than those with a viral load greater than 2000 IU/mL.
CONCLUSION M2BPGi was observed to be a good indicator of early liver disease in patients with different etiologies. Our results provide reference cut-offs for different causes of liver disease and demonstrated the utility of this marker for early disease monitoring. This is useful for remote regions in developing countries.
Collapse
Affiliation(s)
| | - Dat Tan Ho
- MEDIC Medical Center, Ho Chi Minh 72517, Vietnam
| | - Toan Nguyen
- MEDIC Medical Center, Ho Chi Minh 72517, Vietnam
| |
Collapse
|
46
|
Usefulness of Mac-2 binding protein glycosylation isomer in non-invasive probing liver disease in the Vietnamese population. World J Hepatol 2020. [DOI: 10.4254/wjh.v12.i5.210] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
47
|
Zappulo E, Scotto R, Buonomo AR, Maraolo AE, Pinchera B, Gentile I. Efficacy and safety of a fixed dose combination tablet of asunaprevir + beclabuvir + daclatasvir for the treatment of Hepatitis C. Expert Opin Pharmacother 2020; 21:261-273. [PMID: 31914336 DOI: 10.1080/14656566.2019.1697674] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Introduction: Hepatitis C virus (HCV) is estimated to infect approximately 70 million people worldwide. If left untreated, chronic infection can progress to cirrhosis, liver failure or hepatocellular carcinoma. The advent of new direct-acting antivirals (DAA) has revolutionized patients' chances of treatment and viral elimination. Currently, several DAA options are available on the market.Areas covered: This review focuses on the pharmacokinetics, efficacy, tolerability and safety profile of DCV-TRIO, a twice-daily fixed-dose combination of daclatasvir, asunaprevir and beclabuvir approved in Japan for the treatment of genotype 1 HCV infection.Expert opinion: The DCV-TRIO combination achieved good response rates in genotype 1 patients (SVR12 ≥ 95% in naïve subtype 1b), independently from IL28B genotype, cirrhotic status and prior interferon exposure. On the other hand, unsatisfying response rates were reported in DAA-experienced patients and the risk of RAS selection should not be underestimated. Moreover, DCV-TRIO lacks differentiation from its earlier-launched DAA rivals, presents an inconvenient twice-daily dosing schedule and is not recommended in patients with advanced liver and kidney disease. All these drawbacks considerably limit its effective commercial potential. However, it can be a therapeutic option against HCV in tailored approaches according to the needs of different markets across the world.Abbreviations AE: adverse event; ALT: alanine aminotransferase; AST: aspartate aminotransferase; ASV: asunaprevir; AUC: area under the curve; BCRP: Breast Cancer Resistance Protein; BCV: boceprevir; BID: bis in die; CI: confidence intervals; CLcr: creatinine clearance; DAA: direct acting antivirals; DCV: daclatasvir; EC50: Half maximal effective concentration; GT: genotype; HCV: Hepatitis C virus; IFN: Interferon; NHL: non-Hodgkin lymphoma; OATP: Organic anion transporting polypeptides; OR: odds ratio; P-gp: P-glycoprotein; PK: pharmacokinetics; QD: quo die; RAS: resistance-associated substitutions; SVR: sustained virological response; USD: Unites States dollar.
Collapse
Affiliation(s)
- Emanuela Zappulo
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| | - Riccardo Scotto
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| | - Antonio Riccardo Buonomo
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| | - Alberto Enrico Maraolo
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| | - Biagio Pinchera
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| | - Ivan Gentile
- Department of Clinical Medicine and Surgery, Section of Infectious Diseases, University of Naples Federico II, Naples, Italy
| |
Collapse
|
48
|
Mishra S, Pandey A, Manvati S. Coumarin: An emerging antiviral agent. Heliyon 2020; 6:e03217. [PMID: 32042967 PMCID: PMC7002824 DOI: 10.1016/j.heliyon.2020.e03217] [Citation(s) in RCA: 133] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 11/08/2019] [Accepted: 01/10/2020] [Indexed: 12/12/2022] Open
Abstract
Viral infections are responsible for many illnesses, and recent outbreaks have raised public health concerns. Despite the availability of many antiviral drugs, they are often unsuccessful due to the generation of viral mutants and less effective against their target virus. Identifying novel antiviral drugs is therefore of critical importance and natural products are an excellent source for such discoveries. Coumarin is one such natural compound that is a potential drug candidate owing to its properties of stability, solubility, and low toxicity. There are numerous evidences showing its inhibitory role against infection of various viruses such as HIV, Influenza, Enterovirus 71 (EV71) and coxsackievirus A16 (CVA16). The mechanisms involve either inhibition of proteins essential for viral entry, replication and infection or regulation of cellular pathways such as Akt-Mtor (mammalian target of rapamycin), NF-κB (nuclear factor kappa-light-chain-enhancer of activated B cells), and anti-oxidative pathway including NrF-2 (The nuclear factor erythroid 2 (NFE2)-related factor 2). This review summarizes the present state of understanding with a focus on coumarin's antiviral effect and their possible molecular mechanisms against Influenza virus, HIV, Hepatitis virus, Dengue virus and Chikungunya virus.
Collapse
Affiliation(s)
| | | | - Siddharth Manvati
- School of Biotechnology, Jawaharlal Nehru University, New Delhi, India
| |
Collapse
|
49
|
Plant-Derived Purification, Chemical Synthesis, and In Vitro/In Vivo Evaluation of a Resveratrol Dimer, Viniferin, as an HCV Replication Inhibitor. Viruses 2019; 11:v11100890. [PMID: 31547617 PMCID: PMC6832221 DOI: 10.3390/v11100890] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/03/2019] [Accepted: 09/20/2019] [Indexed: 02/08/2023] Open
Abstract
Oligostilbenoid compounds, a group of resveratrol multimers, display several anti-microbial activities through the neutralization of cytotoxic oxidants, and by inhibiting essential host and viral enzymes. In our previous study, we identified a series of oligostilbenoid compounds as potent hepatitis C virus (HCV) replication inhibitors. In particular, vitisin B, a resveratrol tetramer, exhibited the most dramatic anti-HCV activity (EC50 = 6 nM and CC50 > 10 μM) via the disruption of the viral helicase NS3 (IC50 = 3 nM). However, its further development as an HCV drug candidate was halted due to its intrinsic drawbacks, such as poor stability, low water solubility, and restricted in vivo absorption. In order to overcome these limitations, we focused on (+)-ε-viniferin, a resveratrol dimer, as an alternative. We prepared three different versions of (+)-ε-viniferin, including one which was extracted from the grapevine root (EVF) and two which were chemically synthesized with either penta-acetylation (SVF-5Ac) or no acetylation (SVF) using a newly established synthesis method. We confirmed their anti-HCV replication activities and minimal cytotoxicity by using genotype 1b and 2a HCV replicon cells. Their anti-HCV replication action also translated into a significant reduction of viral protein expression. Anti-HCV NS3 helicase activity by EVF was also verified in vitro. Finally, we demonstrated that SVF has improved pharmacokinetic properties over vitisin B. Overall, the favorable antiviral and pharmacokinetic properties of these three versions of viniferin warrant their further study as members of a promising new class of anti-HCV therapeutics.
Collapse
|