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Thiyagarajah K, Basic M, Hildt E. Cellular Factors Involved in the Hepatitis D Virus Life Cycle. Viruses 2023; 15:1687. [PMID: 37632029 PMCID: PMC10459925 DOI: 10.3390/v15081687] [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: 06/30/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Hepatitis D virus (HDV) is a defective RNA virus with a negative-strand RNA genome encompassing less than 1700 nucleotides. The HDV genome encodes only for one protein, the hepatitis delta antigen (HDAg), which exists in two forms acting as nucleoproteins. HDV depends on the envelope proteins of the hepatitis B virus as a helper virus for packaging its ribonucleoprotein complex (RNP). HDV is considered the causative agent for the most severe form of viral hepatitis leading to liver fibrosis/cirrhosis and hepatocellular carcinoma. Many steps of the life cycle of HDV are still enigmatic. This review gives an overview of the complete life cycle of HDV and identifies gaps in knowledge. The focus is on the description of cellular factors being involved in the life cycle of HDV and the deregulation of cellular pathways by HDV with respect to their relevance for viral replication, morphogenesis and HDV-associated pathogenesis. Moreover, recent progress in antiviral strategies targeting cellular structures is summarized in this article.
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Affiliation(s)
| | | | - Eberhard Hildt
- Paul-Ehrlich-Institute, Department of Virology, D-63225 Langen, Germany; (K.T.); (M.B.)
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2
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Casares L, Moreno R, Ali KX, Higgins M, Dayalan Naidu S, Neill G, Cassin L, Kiib AE, Svenningsen EB, Minassi A, Honda T, Poulsen TB, Wiel C, Sayin VI, Dinkova-Kostova AT, Olagnier D, de la Vega L. The synthetic triterpenoids CDDO-TFEA and CDDO-Me, but not CDDO, promote nuclear exclusion of BACH1 impairing its activity. Redox Biol 2022; 51:102291. [PMID: 35313207 PMCID: PMC8938334 DOI: 10.1016/j.redox.2022.102291] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/09/2022] [Accepted: 03/15/2022] [Indexed: 12/31/2022] Open
Abstract
The transcription factor BACH1 is a potential therapeutic target for a variety of chronic conditions linked to oxidative stress and inflammation, as well as cancer metastasis. However, only a few BACH1 degraders/inhibitors have been described. BACH1 is a transcriptional repressor of heme oxygenase 1 (HMOX1), which is positively regulated by transcription factor NRF2 and is highly inducible by derivatives of the synthetic oleanane triterpenoid 2-cyano-3,12-dioxooleana-1,9(11)-dien-28-oic acid (CDDO). Most of the therapeutic activities of these compounds are due to their anti-inflammatory and antioxidant properties, which are widely attributed to their ability to activate NRF2. However, with such a broad range of action, these compounds have other molecular targets that have not been fully identified and could also be of importance for their therapeutic profile. Herein we identified BACH1 as a target of two CDDO-derivatives (CDDO-Me and CDDO-TFEA), but not of CDDO. While both CDDO and CDDO-derivatives activate NRF2 similarly, only CDDO-Me and CDDO-TFEA inhibit BACH1, which explains the much higher potency of these CDDO-derivatives as HMOX1 inducers compared with unmodified CDDO. Notably, we demonstrate that CDDO-Me and CDDO-TFEA inhibit BACH1 via a novel mechanism that reduces BACH1 nuclear levels while accumulating its cytoplasmic form. In an in vitro model, both CDDO-derivatives impaired lung cancer cell invasion in a BACH1-dependent and NRF2-independent manner, while CDDO was inactive. Altogether, our study identifies CDDO-Me and CDDO-TFEA as dual KEAP1/BACH1 inhibitors, providing a rationale for further therapeutic uses of these drugs.
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Affiliation(s)
- Laura Casares
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - Rita Moreno
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - Kevin X Ali
- Institute of Clinical Sciences, Department of Surgery, Sahlgrenska Center for Cancer Research, University of Gothenburg, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Maureen Higgins
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - Sharadha Dayalan Naidu
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - Graham Neill
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - Lena Cassin
- Department of Biomedicine, Health, Aarhus University, 8000, Denmark
| | | | | | - Alberto Minassi
- Department of Drug Science, University of Piemonte Orientale, Novara, Italy
| | - Tadashi Honda
- Department of Chemistry and Institute of Chemical Biology & Drug Discovery, Stony Brook University, Stony Brook, NY, 11794-3400, USA
| | | | - Clotilde Wiel
- Institute of Clinical Sciences, Department of Surgery, Sahlgrenska Center for Cancer Research, University of Gothenburg, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Volkan I Sayin
- Institute of Clinical Sciences, Department of Surgery, Sahlgrenska Center for Cancer Research, University of Gothenburg, Gothenburg, Sweden; Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Albena T Dinkova-Kostova
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK
| | - David Olagnier
- Department of Biomedicine, Health, Aarhus University, 8000, Denmark
| | - Laureano de la Vega
- Jacqui Wood Cancer Centre, Division of Cellular Medicine, School of Medicine, University of Dundee, UK.
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3
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Gerber A, Le Gal F, Dziri S, Alloui C, Roulot D, Dény P, Sureau C, Brichler S, Gordien E. Comprehensive Analysis of Hepatitis Delta Virus Assembly Determinants According to Genotypes: Lessons From a Study of 526 Hepatitis Delta Virus Clinical Strains. Front Microbiol 2021; 12:751531. [PMID: 34867871 PMCID: PMC8636853 DOI: 10.3389/fmicb.2021.751531] [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: 08/01/2021] [Accepted: 09/24/2021] [Indexed: 12/31/2022] Open
Abstract
Human hepatitis Delta virus (HDV) infection is associated to the most severe viral hepatic disease, including severe acute liver decompensation and progression to cirrhosis, and hepatocellular carcinoma. HDV is a satellite of hepatitis B virus (HBV) that requires the HBV envelope proteins for assembly of HDV virions. HDV and HBV exhibit a large genetic diversity that extends, respectively to eight (HDV-1 to -8) and to ten (HBV/A to/J) genotypes. Molecular determinants of HDV virion assembly consist of a C-terminal Proline-rich domain in the large Hepatitis Delta Antigen (HDAg) protein, also known as the Delta packaging domain (DPD) and of a Tryptophan-rich domain, the HDV matrix domain (HMD) in the C-terminal region of the HBV envelope proteins. In this study, we performed a systematic genotyping of HBV and HDV in a cohort 1,590 HDV-RNA-positive serum samples collected between 2001 to 2014, from patients originated from diverse parts of the world, thus reflecting a large genetic diversity. Among these samples, 526 HBV (HBV/A, B, C, D, E, and G) and HDV (HDV-1, 2, 3, and 5 to -8) genotype couples could be obtained. We provide results of a comprehensive analysis of the amino-acid sequence conservation within the HMD and structural and functional features of the DPD that may account for the yet optimal interactions between HDV and its helper HBV.
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Affiliation(s)
- Athenaïs Gerber
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France
| | - Frédéric Le Gal
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,INSERM U955, Équipe 18, Institut Mondor de Recherche Biomédicale, Créteil, France
| | - Samira Dziri
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France
| | - Chakib Alloui
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,INSERM U955, Équipe 18, Institut Mondor de Recherche Biomédicale, Créteil, France
| | - Dominique Roulot
- Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,INSERM U955, Équipe 18, Institut Mondor de Recherche Biomédicale, Créteil, France.,Unité d'Hépatologie, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France
| | - Paul Dény
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Inserm, U1052 - UMR CNRS 5286, Centre de Recherche en Cancérologie de Lyon, Lyon, France
| | - Camille Sureau
- Laboratoire de Virologie Moléculaire, Institut National de la Transfusion Sanguine, Paris, France
| | - Ségolène Brichler
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,INSERM U955, Équipe 18, Institut Mondor de Recherche Biomédicale, Créteil, France
| | - Emmanuel Gordien
- Laboratoire de Microbiologie Clinique, Université Paris Nord, Sorbonne Paris Cité, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,Centre National de Référence des Hépatites B, C et Delta, Hôpitaux Universitaires de Paris-Seine-Saint-Denis, Bobigny, France.,INSERM U955, Équipe 18, Institut Mondor de Recherche Biomédicale, Créteil, France
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4
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LMBD1 protein participates in cell mitosis by regulating microtubule assembly. Biochem J 2021; 478:2321-2337. [PMID: 34076705 DOI: 10.1042/bcj20210070] [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: 01/29/2021] [Revised: 05/14/2021] [Accepted: 06/02/2021] [Indexed: 11/17/2022]
Abstract
LMBD1 was previously demonstrated to regulate the endocytosis of insulin receptor on the cell surface and to mediate the export of cobalamin from the lysosomes to the cytosol, but little is known about its function in mitosis. In this study, interactome analysis data indicate that LMBD1 is involved in cytoskeleton regulation. Both immunoprecipitation and GST pulldown assays demonstrated the association of LMBD1 with tubulin. Immunofluorescence staining also showed the colocalization of LMBD1 with microtubule in both interphase and mitotic cells. LMBD1 specifically accelerates microtubule assembly dynamics in vitro and antagonizes the microtubule-disruptive effect of vinblastine. In addition, LMBRD1-knockdown impairs mitotic spindle formation, inhibits tubulin polymerization, and diminishes the mitosis-associated tubulin acetylation. The reduced acetylation can be reversed by ectopic expression of LMBD1 protein. These results suggest that LMBD1 protein stabilizes microtubule intermediates. Furthermore, embryonic fibroblasts derived from Lmbrd1 heterozygous knockout mice showed abnormality in microtubule formation, mitosis, and cell growth. Taken together, LMBD1 plays a pivotal role in regulating microtubule assembly that is essential for the process of cell mitosis.
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Lucifora J, Delphin M. Current knowledge on Hepatitis Delta Virus replication. Antiviral Res 2020; 179:104812. [PMID: 32360949 DOI: 10.1016/j.antiviral.2020.104812] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Revised: 04/20/2020] [Accepted: 04/25/2020] [Indexed: 12/14/2022]
Abstract
Hepatitis B Virus (HBV) that infects liver parenchymal cells is responsible for severe liver diseases and co-infection with Hepatitis Delta Virus (HDV) leads to the most aggressive form of viral hepatitis. Even tough being different for their viral genome (relaxed circular partially double stranded DNA for HBV and circular RNA for HDV), HBV and HDV are both maintained as episomes in the nucleus of infected cells and use the cellular machinery for the transcription of their viral RNAs. We propose here an update on the current knowledge on HDV replication cycle that may eventually help to identify new antiviral targets.
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Affiliation(s)
- Julie Lucifora
- INSERM, U1052, Cancer Research Center of Lyon (CRCL), Université de Lyon (UCBL1), CNRS UMR_5286, France.
| | - Marion Delphin
- INSERM, U1052, Cancer Research Center of Lyon (CRCL), Université de Lyon (UCBL1), CNRS UMR_5286, France
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Goodrum G, Pelchat M. Insight into the Contribution and Disruption of Host Processes during HDV Replication. Viruses 2018; 11:v11010021. [PMID: 30602655 PMCID: PMC6356607 DOI: 10.3390/v11010021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/18/2018] [Accepted: 12/30/2018] [Indexed: 02/07/2023] Open
Abstract
Hepatitis delta virus (HDV) is unique among animal viruses. HDV is a satellite virus of the hepatitis B virus (HBV), however it shares no sequence similarity with its helper virus and replicates independently in infected cells. HDV is the smallest human pathogenic RNA virus and shares numerous characteristics with viroids. Like viroids, HDV has a circular RNA genome which adopts a rod-like secondary structure, possesses ribozyme domains, replicates in the nucleus of infected cells by redirecting host DNA-dependent RNA polymerases (RNAP), and relies heavily on host proteins for its replication due to its small size and limited protein coding capacity. These similarities suggest an evolutionary relationship between HDV and viroids, and information on HDV could allow a better understanding of viroids and might globally help understanding the pathogenesis and molecular biology of these subviral RNAs. In this review, we discuss the host involvement in HDV replication and its implication for HDV pathogenesis.
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Affiliation(s)
- Gabrielle Goodrum
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
| | - Martin Pelchat
- Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON K1H 8M5, Canada.
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Jun YW, Lee SH, Shim J, Lee JA, Lim CS, Kaang BK, Jang DJ. Dual roles of the N-terminal coiled-coil domain of anAplysiasec7 protein: homodimer formation and nuclear export. J Neurochem 2016; 139:1102-1112. [DOI: 10.1111/jnc.13875] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/13/2016] [Accepted: 10/12/2016] [Indexed: 12/24/2022]
Affiliation(s)
- Yong-Woo Jun
- Department of Ecological Science; College of Ecology and Environment; Kyungpook National University; Sangju-si Gyeongsangbuk-do Korea
| | - Seung-Hee Lee
- Department of Biological Sciences; Korea Institute of Science and Technology (KAIST); Daejeon Korea
| | - Jaehoon Shim
- Department of Biological Sciences; College of Natural Sciences; Seoul National University; Gwanak-gu Seoul Korea
| | - Jin-A Lee
- Department of Biotechnology and Biological Science; College of Life Science and Nano Technology; Hannam University; Yuseong-daero; Yuseong-gu Daejeon Korea
| | - Chae-Seok Lim
- Department of Biological Sciences; College of Natural Sciences; Seoul National University; Gwanak-gu Seoul Korea
| | - Bong-Kiun Kaang
- Department of Biological Sciences; College of Natural Sciences; Seoul National University; Gwanak-gu Seoul Korea
| | - Deok-Jin Jang
- Department of Ecological Science; College of Ecology and Environment; Kyungpook National University; Sangju-si Gyeongsangbuk-do Korea
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Huang HC, Lee CP, Liu HK, Chang MF, Lai YH, Lee YC, Huang C. Cellular Nuclear Export Factors TAP and Aly Are Required for HDAg-L-mediated Assembly of Hepatitis Delta Virus. J Biol Chem 2016; 291:26226-26238. [PMID: 27807029 DOI: 10.1074/jbc.m116.754853] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Revised: 11/01/2016] [Indexed: 12/18/2022] Open
Abstract
Hepatitis delta virus (HDV) is a satellite virus of hepatitis B virus (HBV). HDV genome encodes two forms of hepatitis delta antigen (HDAg), small HDAg (HDAg-S), which is required for viral replication, and large HDAg (HDAg-L), which is essential for viral assembly. HDAg-L is identical to HDAg-S except that it bears a 19-amino acid extension at the C terminus. Both HDAgs contain a nuclear localization signal (NLS), but only HDAg-L contains a CRM1-independent nuclear export signal at its C terminus. The nuclear export activity of HDAg-L is important for HDV particle formation. However, the mechanisms of HDAg-L-mediated nuclear export of HDV ribonucleoprotein are not clear. In this study, the host cellular RNA export complex TAP-Aly was found to form a complex with HDAg-L, but not with an export-defective HDAg-L mutant, in which Pro205 was replaced by Ala. HDAg-L was found to colocalize with TAP and Aly in the nucleus. The C-terminal domain of HDAg-L was shown to directly interact with the N terminus of TAP, whereas an HDAg-L mutant lacking the NLS failed to interact with full-length TAP. In addition, small hairpin RNA-mediated down-regulation of TAP or Aly reduced nuclear export of HDAg-L and assembly of HDV virions. Furthermore, a peptide, TAT-HDAg-L(198-210), containing the 10-amino acid TAT peptide and HDAg-L(198-210), inhibited the interaction between HDAg-L and TAP and blocked HDV virion assembly and secretion. These data demonstrate that formation and release of HDV particles are mediated by TAP and Aly.
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Affiliation(s)
- Hsiu-Chen Huang
- From the Department of Applied Science, National Hsinchu University of Education, Hsinchu 30014
| | - Chung-Pei Lee
- the School of Nursing, National Taipei University of Nursing and Health Sciences, Taipei 11219
| | - Hui-Kang Liu
- the National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11221.,the Ph.D Program for Clinical Drug Discovery from Botanical Herbs, Taipei Medical University, Taipei 11031
| | - Ming-Fu Chang
- the Institute of Biochemistry and Molecular Biology, National Taiwan University College of Medicine, Taipei 10051
| | - Yu-Heng Lai
- the Department of Chemistry, Chinese Culture University, Taipei 11114
| | - Yu-Ching Lee
- the Center of Translational Medicine, Taipei Medical University, Taipei 11031.,the Ph.D. Program for Medical Biotechnology, College of Medical Science and Technology, Taipei Medical University, Taipei 11031, and
| | - Cheng Huang
- the National Research Institute of Chinese Medicine, Ministry of Health and Welfare, Taipei 11221, .,the Department of Earth and Life Sciences, University of Taipei, Taipei 10048, Taiwan
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Douet-Guilbert N, De Braekeleer E, Tous C, Guéganic N, Basinko A, Le Bris MJ, Morel F, De Braekeleer M. A novel translocation (6;20)(q13;q12) in acute myeloid leukemia likely results inLMBRD1–CHD6fusion. Leuk Lymphoma 2014; 56:527-8. [DOI: 10.3109/10428194.2014.924122] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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