1
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Machmouchi D, Courageot MP, El-Kalamouni C, Kohl A, Desprès P. Replication properties of a contemporary Zika virus from West Africa. PLoS Negl Trop Dis 2024; 18:e0012066. [PMID: 38968296 PMCID: PMC11253966 DOI: 10.1371/journal.pntd.0012066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 07/17/2024] [Accepted: 06/13/2024] [Indexed: 07/07/2024] Open
Abstract
Zika virus (ZIKV) has become a global health problem over the past decade due to the extension of the geographic distribution of the Asian/American genotype. Recent epidemics of Asian/American ZIKV have been associated with developmental disorders in humans. There is mounting evidence that African ZIKV may be associated with increased fetal pathogenicity necessitating to pay a greater attention towards currently circulating viral strains in sub-Saharan Africa. Here, we generated an infectious molecular clone GUINEA-18 of a recently transmitted human ZIKV isolate from West Africa, ZIKV-15555. The available infectious molecular clone MR766MC of historical African ZIKV strain MR766-NIID was used for a molecular clone-based comparative study. Viral clones GUINEA-18 and MR766MC were compared for their ability to replicate in VeroE6, A549 and HCM3 cell lines. There was a lower replication rate for GUINEA-18 associated with weaker cytotoxicity and reduced innate immune system activation compared with MR766MC. Analysis of chimeric viruses between viral clones stressed the importance of NS1 to NS4B proteins, with a particular focus of NS4B on GUINEA-18 replicative properties. ZIKV has developed strategies to prevent cytoplasmic stress granule formation which occurs in response to virus infection. GUINEA-18 was greatly efficient in inhibiting stress granule assembly in A549 cells subjected to a physiological stressor, with NS1 to NS4B proteins also being critical in this process. The impact of these GUINEA-18 proteins on viral replicative abilities and host-cell responses to viral infection raises the question of the role of nonstructural proteins in the pathogenicity of currently circulating ZIKV in sub-Saharan Africa.
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Affiliation(s)
- Dana Machmouchi
- Processus Infectieux en Milieu Insulaire Tropical (PIMIT), Université de La Réunion, INSERM U1187, CNRS 9192, IRD 249, Plateforme Technologique CYROI, Sainte-Clotilde, La Réunion, France
| | | | - Chaker El-Kalamouni
- Processus Infectieux en Milieu Insulaire Tropical (PIMIT), Université de La Réunion, INSERM U1187, CNRS 9192, IRD 249, Plateforme Technologique CYROI, Sainte-Clotilde, La Réunion, France
| | - Alain Kohl
- Centre for Neglected Tropical Diseases, Departments of Tropical Disease Biology and Vector Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Philippe Desprès
- Processus Infectieux en Milieu Insulaire Tropical (PIMIT), Université de La Réunion, INSERM U1187, CNRS 9192, IRD 249, Plateforme Technologique CYROI, Sainte-Clotilde, La Réunion, France
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2
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Cheng C, Tan MJA, Chan KWK, Choy MMJ, Roman N, Arnold DDR, Bifani AM, Kong SYZ, Bist P, Nath BK, Swarbrick CMD, Forwood JK, Vasudevan SG. Serotype-Specific Regulation of Dengue Virus NS5 Protein Subcellular Localization. ACS Infect Dis 2024; 10:2047-2062. [PMID: 38811007 PMCID: PMC11184549 DOI: 10.1021/acsinfecdis.4c00054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 05/31/2024]
Abstract
Dengue virus (DENV) nonstructural protein 5 (NS5), consisting of methyltransferase and RNA-dependent RNA polymerase (RdRp) domains, is critical for viral RNA synthesis within endoplasmic reticulum-derived replication complexes in the cytoplasm. However, a significant proportion of NS5 is localized to the nucleus of infected cells for DENV2, 3, and 4, whereas DENV1 NS5 is localized diffusely in the cytoplasm. We still have an incomplete understanding of how the DENV NS5 subcellular localization is regulated. Within NS5, two putative nuclear localization signal (NLS) sequences have been identified: NLSCentral residing in the palm of the RdRp domain as well as the recently discovered NLSC-term residing in the flexible region at the C-terminal of the RdRp domain. We have previously shown that DENV2 NS5 nuclear localization can be significantly reduced by single-point mutations to the NLSC-term. Here, we present biochemical, virological, and structural data demonstrating that the relative importance of either NLS in NS5 nuclear localization is unique to each of the four DENV serotypes. DENV1 NS5's cytoplasmic localization appears to be due to a functionally weak interaction between its NLSCentral and importin-α (IMPα), while DENV2 NS5 is almost exclusively nuclear through its NLSC-term's strong interaction with IMPα. Both NLSs of DENV3 NS5 appear to contribute to directing its nuclear localization. Lastly, in the case of DENV4, the regulation of its NS5 nuclear localization remains an enigma but appears to be associated with its NLSC-term.
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Affiliation(s)
- Colin
Xinru Cheng
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Min Jie Alvin Tan
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Kitti Wing Ki Chan
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Milly Ming Ju Choy
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Noelia Roman
- School
of Dentistry and Medical Sciences, Charles
Sturt University, Wagga
Wagga, NSW 2678, Australia
| | - Daniel D. R. Arnold
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
- School
of Dentistry and Medical Sciences, Charles
Sturt University, Wagga
Wagga, NSW 2678, Australia
| | - Amanda Makha Bifani
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Sean Yao Zu Kong
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Pradeep Bist
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
| | - Babu K. Nath
- School
of Dentistry and Medical Sciences, Charles
Sturt University, Wagga
Wagga, NSW 2678, Australia
| | - Crystall M. D. Swarbrick
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
- Biosecurity
Research Program and Training Centre, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
- Institute
for Glycomics, Griffith University, Southport 4222, Australia
| | - Jade K. Forwood
- School
of Dentistry and Medical Sciences, Charles
Sturt University, Wagga
Wagga, NSW 2678, Australia
- Biosecurity
Research Program and Training Centre, Gulbali Institute, Charles Sturt University, Wagga Wagga, NSW 2678, Australia
| | - Subhash G. Vasudevan
- Programme
in Emerging Infectious Diseases, Duke-NUS
Medical School, Singapore 169857, Singapore
- Department
of Microbiology and Immunology, National
University of Singapore, Singapore 117545, Singapore
- Institute
for Glycomics, Griffith University, Southport 4222, Australia
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3
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Pérez-Yanes S, Lorenzo-Sánchez I, Cabrera-Rodríguez R, García-Luis J, Trujillo-González R, Estévez-Herrera J, Valenzuela-Fernández A. The ZIKV NS5 Protein Aberrantly Alters the Tubulin Cytoskeleton, Induces the Accumulation of Autophagic p62 and Affects IFN Production: HDAC6 Has Emerged as an Anti-NS5/ZIKV Factor. Cells 2024; 13:598. [PMID: 38607037 PMCID: PMC11011779 DOI: 10.3390/cells13070598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/22/2024] [Accepted: 03/27/2024] [Indexed: 04/13/2024] Open
Abstract
Zika virus (ZIKV) infection and pathogenesis are linked to the disruption of neurogenesis, congenital Zika syndrome and microcephaly by affecting neural progenitor cells. Nonstructural protein 5 (NS5) is the largest product encoded by ZIKV-RNA and is important for replication and immune evasion. Here, we studied the potential effects of NS5 on microtubules (MTs) and autophagy flux, together with the interplay of NS5 with histone deacetylase 6 (HDAC6). Fluorescence microscopy, biochemical cell-fractionation combined with the use of HDAC6 mutants, chemical inhibitors and RNA interference indicated that NS5 accumulates in nuclear structures and strongly promotes the acetylation of MTs that aberrantly reorganize in nested structures. Similarly, NS5 accumulates the p62 protein, an autophagic-flux marker. Therefore, NS5 alters events that are under the control of the autophagic tubulin-deacetylase HDAC6. HDAC6 appears to degrade NS5 by autophagy in a deacetylase- and BUZ domain-dependent manner and to control the cytoplasmic expression of NS5. Moreover, NS5 inhibits RNA-mediated RIG-I interferon (IFN) production, resulting in greater activity when autophagy is inhibited (i.e., effect correlated with NS5 stability). Therefore, it is conceivable that NS5 contributes to cell toxicity and pathogenesis, evading the IFN-immune response by overcoming HDAC6 functions. HDAC6 has emerged as an anti-ZIKV factor by targeting NS5.
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Affiliation(s)
- Silvia Pérez-Yanes
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Iria Lorenzo-Sánchez
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Romina Cabrera-Rodríguez
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Jonay García-Luis
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Rodrigo Trujillo-González
- Department of Análisis Matemático, Facultad de Ciencias, Universidad de La Laguna, 38296 La Laguna, Spain;
| | - Judith Estévez-Herrera
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
| | - Agustín Valenzuela-Fernández
- Laboratorio de Inmunología Celular y Viral, Unidad de Farmacología, Sección de Medicina, Facultad de Ciencias de la Salud, Universidad de La Laguna, 38200 La Laguna, Spain; (S.P.-Y.); (I.L.-S.); (R.C.-R.); (J.G.-L.)
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4
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Peng NYG, Sng JDJ, Setoh YX, Khromykh AA. Residue K28 of Zika Virus NS5 Protein Is Implicated in Virus Replication and Antagonism of STAT2. Microorganisms 2024; 12:660. [PMID: 38674605 PMCID: PMC11052099 DOI: 10.3390/microorganisms12040660] [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: 01/10/2024] [Revised: 03/07/2024] [Accepted: 03/19/2024] [Indexed: 04/28/2024] Open
Abstract
The identification of four potential nonstructural 5 (NS5) residues-K28, K45, V335, and S749-that share the same amino acid preference in STAT2-interacting flaviviruses [Dengue virus (DENV) and Zika virus (ZIKV)], but not in STAT2-non-interacting flaviviruses [West Nile virus (WNV) and/or Yellow fever virus (YFV)] from an alignment of multiple flavivirus NS5 sequences, implied a possible association with the efficiency of ZIKV to antagonize the human signal transducer and activator of transcription factor 2 (STAT2). Through site-directed mutagenesis and reverse genetics, mutational impacts of these residues on ZIKV growth in vitro and STAT2 antagonism were assessed using virus growth kinetics assays and STAT2 immunoblotting. The results showed that mutations at the residue K28 significantly reduced the efficiency of ZIKV to antagonize STAT2. Further investigation involving residue K28 demonstrated its additional effects on the phenotypes of ZIKV-NS5 nuclear bodies. These findings demonstrate that K28, identified from sequence alignment, is an important determinant of replication and STAT2 antagonism by ZIKV.
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Affiliation(s)
- Nias Y. G. Peng
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
| | - Julian D. J. Sng
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
| | - Yin Xiang Setoh
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
- Infectious Diseases Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119077, Singapore
| | - Alexander A. Khromykh
- School of Chemistry and Molecular Biosciences, The University of Queensland, St. Lucia, QLD 4072, Australia; (J.D.J.S.); (Y.X.S.)
- Australian Infectious Diseases Research Centre, Global Virus Network Centre of Excellence, Brisbane, QLD 4072, Australia
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5
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Zhou GF, Qian W, Li F, Yang RH, Wang N, Zheng CB, Li CY, Gu XR, Yang LM, Liu J, Xiong SD, Zhou GC, Zheng YT. Discovery of ZFD-10 of a pyridazino[4,5-b]indol-4(5H)-one derivative as an anti-ZIKV agent and a ZIKV NS5 RdRp inhibitor. Antiviral Res 2023; 214:105607. [PMID: 37088168 DOI: 10.1016/j.antiviral.2023.105607] [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: 02/05/2023] [Revised: 04/17/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Zika virus (ZIKV) infection is associated with the birth defect microcephaly and Guillain-Barré syndrome in adults. There is no approved vaccine or specific antiviral agent against ZIKV. ZFD-10, a novel structural skeleton of 1H-pyridazino[4,5-b]indol-4(5H)-one, was firstly synthesized and discovered to be a potent anti-ZIKV inhibitor with very low cytotoxicity. ZFD-10's anti-ZIKV potency is independent of cell lines and ZFD-10 mainly targets the post-entry stages of ZIKV life cycle. Time-of-addition and time-of-withdrawal assays showed that 10 μM ZFD-10 displayed the ability to decrease mainly at the RNA level and weakly the viral progeny particle load. Furthermore, ZFD-10 could protect ZIKV NS5 from thermal unfolding and aggregation and increase the Tagg value of ZIKV NS5 protein from 44.6 to 49.3 °C, while ZFD-10 dose-dependently inhibits ZIKV NS5 RdRp activity using in vitro RNA polymerase assays. Molecular docking study suggests that ZFD-10 affects RdRp enzymatic function through interfering with the fingers and thumb subdomains. These results supported that ZFD-10's cell-based anti-ZIKV activity is related to its anti-RdRp activity of ZIKV NS5. The in vivo anti-ZIKV study shows that the middle-dose (4.77 mg/kg/d) of ZFD-10 protected mice from ZIKV infection and the viral loads of the blood, liver, kidney and brain in the middle-dose and high-dose (9.54 mg/kg/d) were significantly reduced compared to those of the ZIKV control. These results confirm that ZFD-10 has a certain antiviral effect against ZIKV infection in vivo.
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Affiliation(s)
- Guang-Feng Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China; College of Pharmacy, Soochow University, Suzhou, 215021, China
| | - Weiyi Qian
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, Jiangsu, China
| | - Feng Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, Jiangsu, China
| | - Ren-Hua Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China; School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Na Wang
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Chang-Bo Zheng
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Chun-Yan Li
- College of Pharmacy, Dali University, Dali, 671000, Yunnan, China
| | - Xue-Rong Gu
- School of Pharmaceutical Science & Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, 650500, China
| | - Liu-Meng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China
| | - Jinsong Liu
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, 510530, China
| | - Si-Dong Xiong
- College of Pharmacy, Soochow University, Suzhou, 215021, China.
| | - Guo-Chun Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, 211816, Jiangsu, China.
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences, Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, 650223, Yunnan, China.
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6
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Zhou GF, Li F, Xue JX, Qian W, Gu XR, Zheng CB, Li C, Yang LM, Xiong SD, Zhou GC, Zheng YT. Antiviral effects of the fused tricyclic derivatives of indoline and imidazolidinone on ZIKV infection and RdRp activities of ZIKV and DENV. Virus Res 2023; 326:199062. [PMID: 36746341 DOI: 10.1016/j.virusres.2023.199062] [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: 07/25/2022] [Revised: 01/10/2023] [Accepted: 02/01/2023] [Indexed: 02/08/2023]
Abstract
The prevalence and ravages of Zika virus (ZIKV) seriously endanger human health, especially causing significant neurological defects in both neonates as pediatric microcephaly and adults as Guillain-Barré syndrome. In this work, we studied anti-ZIKV effects of the fused tricyclic derivatives of indoline and imidazolidinone and discovered that some of them are valuable leads for drug discovery of anti-ZIKV agents. The current results show that certain compounds are broad-spectrum inhibitors of ZIKV- and dengue virus (DENV)-infection while distinctive compounds are selective ZIKV inhibitors or selective DENV inhibitors. Compounds of 12, 17 and 28 are more active against Asian ZIKV SZ-VIV01 strain than African ZIKV MR766 strain. It is valued that silylation makes six TBS compounds of 4-nitrophenyl hydrazine series and phenyl hydrazine series more active against ZIKV infection than their phenols. Time-of-addition and withdrawal studies indicate that compound 12 majorly acts on post-infection of RNA synthesis stage of ZIKV life cycle. Moreover, compounds of 12, 17 and 18 are anti-ZIKV agents with the inhibitory activities to ZIKV NS5 RdRp while 12 doesn't inhibit DENV infection even though it is a DENV RdRp inhibitor, 17 is an active agent against DENV infection but is only a weak DENV NS5 RdRp inhibitor, and 28 is inactive against DENV infection and not a DENV NS5 RdRp inhibitor. As a result, a compound's antiviral difference between ZIKV and DENV is not always related to anti-RdRp difference between ZIKV RdRp and DENV RdRp, and structural features of a compound play important roles in executing antiviral and anti-RdRp functions. Further discovery of highly potent broad-spectrum or selective agents against infection by ZIKV and DENV will be facilitated.
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Affiliation(s)
- Guang-Feng Zhou
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; College of Pharmacy, Soochow University, Suzhou 215021, China
| | - Feng Li
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Jian-Xia Xue
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China; Medical College, Kunming University of Science and Technology, Kunming, Yunnan 650223, China
| | - Weiyi Qian
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 211816, China
| | - Xue-Rong Gu
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Chang-Bo Zheng
- School of Pharmaceutical Science and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, China
| | - Chunyan Li
- College of Pharmacy, Dali University, Dali, Yunnan 671000, China
| | - Liu-Meng Yang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China
| | - Si-Dong Xiong
- College of Pharmacy, Soochow University, Suzhou 215021, China.
| | - Guo-Chun Zhou
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing, Jiangsu 211816, China.
| | - Yong-Tang Zheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, KIZ-CUHK Joint Laboratory of Bioresources and Molecular Research in Common Diseases, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650223, China.
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7
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Yu Y, Chen Y, Wang J, Fan X, He Z, Qiao S, Hou S, Zou P. A peptide derived from the N-terminal of NS2A for the preparation of ZIKV NS2A recognition polyclonal antibody. J Immunol Methods 2023; 512:113396. [PMID: 36463933 DOI: 10.1016/j.jim.2022.113396] [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: 06/14/2022] [Revised: 11/10/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
Zika virus non-structural protein NS2A participates in viral replication, organization, and budding, as well as escaping host immunity. NS2A also involved in the induction of microcephaly by ZIKV. However, the above studies were mainly performed through NS2A with a tag due to the lack of available antibodies against NS2A. ZIKV NS2A is a multiplex transmembrane protein, which leads to difficulties in the preparation of its recognition antibodies, thus seriously affecting the study of ZIKV NS2A. In this study, we found that a peptide (GSTDHMDHFSLGVLC) derived from the N-terminal of ZIKV NS2A coupled to KLH induced antibodies recognizing ZIKV NS2A in rabbits. The purified polyclonal antibody recognized ZIKV NS2A in ZIKV-infected cells with high efficiency and specificity, as detected by western blot and immunofluorescence assay. Our study has important implications for the preparation of ZIKV NS2A antibodies and the in-depth study of ZIKV NS2A.
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Affiliation(s)
- Yufeng Yu
- Shanxi Provincial Key Laboratory for Functional Proteins, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China.
| | - Yongkang Chen
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Jian Wang
- Shanxi Provincial Key Laboratory for Functional Proteins, Shanxi Jinbo Bio-Pharmaceutical Co., Ltd., Taiyuan 030032, China
| | - Xiuling Fan
- Shanxi Provincial Key Laboratory for Functional Proteins, School of Basic Medical Sciences, Shanxi Medical University, Taiyuan 030001, China
| | - Zhenrui He
- Shanxi Provincial Key Laboratory for Functional Proteins, Shanxi Jinbo Bio-Pharmaceutical Co., Ltd., Taiyuan 030032, China
| | - Shaojun Qiao
- Shanxi Provincial Key Laboratory for Functional Proteins, Shanxi Jinbo Bio-Pharmaceutical Co., Ltd., Taiyuan 030032, China
| | - Shishi Hou
- Shanxi Provincial Key Laboratory for Functional Proteins, Shanxi Jinbo Bio-Pharmaceutical Co., Ltd., Taiyuan 030032, China
| | - Peng Zou
- Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China.
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8
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Discovery of dehydroandrographolide derivatives with C19 hindered ether as potent anti-ZIKV agents with inhibitory activities to MTase of ZIKV NS5. Eur J Med Chem 2022; 243:114710. [DOI: 10.1016/j.ejmech.2022.114710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/20/2022] [Accepted: 08/21/2022] [Indexed: 11/22/2022]
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9
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Jung HG, Cho H, Kim M, Jung H, Bak Y, Lee SY, Seo HY, Son YM, Woo H, Yoon G, Kim SJ, Oh JW. Influence of Zika virus 3'-end sequence and nonstructural protein evolution on the viral replication competence and virulence. Emerg Microbes Infect 2022; 11:2447-2465. [PMID: 36149812 PMCID: PMC9621255 DOI: 10.1080/22221751.2022.2128433] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 09/20/2022] [Indexed: 11/09/2022]
Abstract
Zika virus (ZIKV) has been circulating in human networks over 70 years since its first appearance in Africa, yet little is known about whether the viral 3'-terminal sequence and nonstructural (NS) protein diverged genetically from ancient ZIKV have different effects on viral replication and virulence in currently prevailing Asian lineage ZIKV. Here we show, by a reverse genetics approach using an infectious cDNA clone for a consensus sequence (Con1) of ZIKV, which represents Asian ZIKV strains, and another clone derived from the MR766 strain isolated in Uganda, Africa in 1947, that the 3'-end sequence -UUUCU-3' homogeneously present in MR766 genome and the -GUCU-3' sequence strictly conserved in Asian ZIKV isolates are functionally equivalent in viral replication and gene expression. By gene swapping experiments using the two infectious cDNA clones, we show that the NS1-5 proteins of MR766 enhance replication competence of ZIKV Con1. The Con1, which was less virulent than MR766, acquired severe bilateral hindlimb paralysis when its NS1-5 genes were replaced by the counterparts of MR766 in type I interferon receptor (IFNAR1)-deficient A129 mice. Moreover, MR766 NS5 RNA-dependent RNA polymerase (RdRp) alone also rendered the Con1 virulent, despite there being no difference in RdRp activity between MR766 and Con1 NS5 proteins. By contrast, the Con1 derivatives expressing MR766 Nsps, like Con1, did not develop severe disease in wild-type mice treated with an IFNAR1 blocking antibody. Together, our findings uncover an unprecedented role for ZIKV NS proteins in determining viral pathogenicity in immunocompromised hosts.
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Affiliation(s)
- Hae-Gwang Jung
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Hee Cho
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Minwoo Kim
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Haewon Jung
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Yeonju Bak
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Se-Young Lee
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Han Young Seo
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Yu-Min Son
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Hawon Woo
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Gone Yoon
- Department of Biotechnology, Yonsei University, Seoul, South Korea
| | - Seong-Jun Kim
- Center for Convergent Research of Emerging Virus Infection, Korea Research Institute of Chemical Technology, Daejeon, South Korea
| | - Jong-Won Oh
- Department of Biotechnology, Yonsei University, Seoul, South Korea
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10
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Cheng CX, Alvin Tan MJ, Chan KWK, Watanabe S, Wang S, Choy MM, Manuel M, Victorio CBL, Ong J, Reolo M, Chacko AM, Vasudevan SG. In Vitro and In Vivo Stability of P884T, a Mutation that Relocalizes Dengue Virus 2 Non-structural Protein 5. ACS Infect Dis 2021; 7:3277-3291. [PMID: 34735113 DOI: 10.1021/acsinfecdis.1c00441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Dengue virus (DENV) non-structural protein 5 (NS5) is critical for viral RNA synthesis within endoplasmic reticulum (ER)-derived replication complexes in the cytoplasm; however a proportion of NS5 is known to be localized to the nucleus of infected cells. The importance of nuclear DENV NS5 on viral replication and pathogenesis is still unclear. We recently discovered a nuclear localization signal (NLS) residing in the C-terminal 18 amino acid (Cter18) region of DENV NS5 and that a single NS5 P884T amino acid substitution adjacent to the NLS is sufficient to relocalize a significant proportion of DENV2 NS5 from the nucleus to the cytoplasm of infected cells. Here, in vitro studies show that the DENV2 NS5 P884T mutant replicates similarly to the parental wild-type infectious clone-derived virus while inducing a greater type I interferon and inflammatory cytokine response, in a manner independent of NS5's ability to degrade STAT2 or regulate SAT1 splicing. In both AG129 mouse and Aedes aegypti mosquito infection models, the P884T virus exhibits lower levels of viral replication only at early timepoints. Intriguingly, there appears to be a tendency for selection pressure to revert to the wild-type proline in P884T-infected Ae. aegypti, in agreement with the high conservation of the proline at this position of NS5 in DENV2, 3, and 4. These results suggest that the predominant nuclear localization of DENV NS5, while not required for viral RNA replication, may play a role in pathogenesis and modulation of the host immune response and contribute to viral fitness in the mosquito host.
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Affiliation(s)
- Colin X. Cheng
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Min Jie Alvin Tan
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Kitti W. K. Chan
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Satoru Watanabe
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Sai Wang
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Milly M. Choy
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Menchie Manuel
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Carla B. L. Victorio
- Laboratory for Translational and Molecular Imaging, Cancer and Stem Cell Biology Programme, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Joanne Ong
- Laboratory for Translational and Molecular Imaging, Cancer and Stem Cell Biology Programme, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Marie Reolo
- Laboratory for Translational and Molecular Imaging, Cancer and Stem Cell Biology Programme, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Ann-Marie Chacko
- Laboratory for Translational and Molecular Imaging, Cancer and Stem Cell Biology Programme, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
| | - Subhash G. Vasudevan
- Programme in Emerging Infectious Diseases, Duke-NUS Medical School, 8 College Road, Singapore 169857, Singapore
- Department of Microbiology & Immunology, Yong Loo Lin School of Medicine, NUS, 5 Science Drive 2, Singapore 117545, Singapore
- Institute for Glycomics, Griffith University, Southport 4222, Australia
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11
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Zeng M, Chen S, Zhang W, Duan Y, Jiang B, Pan X, Wang M, Jia R, Zhu D, Liu M, Zhao X, Yang Q, Wu Y, Zhang S, Huang J, Ou X, Mao S, Tian B, Gao Q, Cheng A. Nuclear localization of duck Tembusu virus NS5 protein attenuates viral replication in vitro and NS5-NS2B3 interaction. Vet Microbiol 2021; 262:109239. [PMID: 34555732 DOI: 10.1016/j.vetmic.2021.109239] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 09/11/2021] [Indexed: 11/15/2022]
Abstract
Duck Tembusu virus (TMUV) belongs to the flavivirus genus whose genome replication involved in capping and RNA synthesis dominating by nonstructural protein 5 (NS5). Flaviviral replication has been well documented to occur in the cytoplasm, but the effect of NS5 to gain access to the nucleus remains controversial. Here, TMUV NS5 was observed to localize within the cytoplasm of transfected and infected cells and co-localized with the endoplasmic reticulum. We introduced two arginine mutations into the N390 and Q392 (N390R and Q392R) of the NS5 bipartite nuclear localization sequence (α/βNLS) and designated that mutagenesis as NS5NLSmut, which has shown the ability to access the nucleus and hence attenuates viral replication and production in vitro. Additionally, there was no significant difference between the recovered wild-type TMUV (rTMUV-WT) and engineered mutant (rTMUV-NS5NLSmut) on plaque morphology, survival rate of infected duck embryos or virus copies in tissues. Considering that NS5NLSmut is mainly located in the cytoplasm of rTMUV-NS5NLSmut infected cells at the early stage of infection. We further confirmed that NS5NLSmut attenuated its interaction with nonstructural NS2B-NS3 (NS2B3) following transfection and infection. Meanwhile, the rTMUV-NS5NLSmut tended to stimulate more interferon beta (IFNβ) than rTMUV-WT. However, preliminary study on transient NS5 and NS5NLSmut detected the same levels of IFNβ mRNA mediated by RIG-I detection of NS5 RNA polymerase activity in cell. In summary, these results provide further insights into the relationship between the viral property and subcellular localization of flavivirus NS5 in terms of the NS5-NS2B3 interaction.
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Affiliation(s)
- Miao Zeng
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Shun Chen
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China.
| | - Wei Zhang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Yanping Duan
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Bowen Jiang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Xin Pan
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Mingshu Wang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Renyong Jia
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Dekang Zhu
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Mafeng Liu
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Xinxin Zhao
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Qiao Yang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Ying Wu
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Shaqiu Zhang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Juan Huang
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Xumin Ou
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Sai Mao
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Bin Tian
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Qun Gao
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China
| | - Anchun Cheng
- Research Center of Avian Disease, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Institute of Preventive Veterinary Medicine, College of Veterinary Medicine, Sichuan Agricultural University, Wenjiang District, Chengdu City, Sichuan Province, 611130, China; Key Laboratory of Animal Disease and Human Health of Sichuan Province, Wenjiang District, Chengdu City, Sichuan Province, 611130, China.
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12
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Bagasra O, Shamabadi NS, Pandey P, Desoky A, McLean E. Differential expression of miRNAs in a human developing neuronal cell line chronically infected with Zika virus. Libyan J Med 2021; 16:1909902. [PMID: 33849406 PMCID: PMC8049460 DOI: 10.1080/19932820.2021.1909902] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Zika virus (ZIKV) is a serious public health concern that may lead to neurological disorders in affected individuals. The virus can be transmitted from an infected mother to her fetus, via mosquitoes, or sexually. ZIKV infections are associated with increased risk for Guillain-Barré syndrome (GBS) and congenital microcephaly in newborns infected prenatally. Dysregulations of intracellular microRNAs (miRNAs) in infected neurons have been linked to different neurological diseases. To determine the potential role of miRNAs in ZIKV infection we developed a chronically infected neuroblastoma cell line and carried out differential expression analyses of miRNAs with reference to an uninfected neuroblastoma cell line. A total of 3192miRNAs were evaluated and 389 were found to be upregulated < 2-fold and 1291 were downregulated < 2-fold. In particular, we determined that hsa-mir-431-5p, hsa-mir-3687, hsa-mir-4655-5p, hsa-mir-6071, hsa-mir-762, hsa-mir-5787, and hsa-mir-6825-3p were significantly downregulated, ranging from -5711 to -660-fold whereas, has-mir-4315, hsa-mir-5681b, hsa-mir-6511a-3p, hsa-mir-1264, hsa-mir-4418, hsa-mir-4497, hsa-mir-4485-3p, hsa-mir-4715-3p, hsa-mir-4433-3p, hsa-mir-4708-3p, hsa-mir-1973 and hsa-mir-564 were upregulated, ranging from 20-0.8-fold. We carried out target gene alignment of these miRNAs with the ZIKV genome to predict the function of the differentially expressed miRNAs and their potential impact on ZIKV pathogenesis. These miRNAs might prove useful as novel diagnostic or therapeutic markers and targets for further research on ZIKV infection and neuronal injury resulting from ZIKV infectivity in developing fetal brain neurons.
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Affiliation(s)
- Omar Bagasra
- Omar Bagasra, South Carolina Center for Biotechnology, Claflin University, Orangeburg, SC, USA
| | | | - Pratima Pandey
- Omar Bagasra, South Carolina Center for Biotechnology, Claflin University, Orangeburg, SC, USA
| | - Abdelrahman Desoky
- Department of Mathematics and Computer Science, Claflin University, Orangeburg, SC, USA
| | - Ewen McLean
- Department of Aquatic Research, Aqua Cognoscenti LLC, West Columbia, SC, USA
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13
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Zika Virus Pathogenesis: A Battle for Immune Evasion. Vaccines (Basel) 2021; 9:vaccines9030294. [PMID: 33810028 PMCID: PMC8005041 DOI: 10.3390/vaccines9030294] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2021] [Revised: 03/12/2021] [Accepted: 03/13/2021] [Indexed: 12/13/2022] Open
Abstract
Zika virus (ZIKV) infection and its associated congenital and other neurological disorders, particularly microcephaly and other fetal developmental abnormalities, constitute a World Health Organization (WHO) Zika Virus Research Agenda within the WHO’s R&D Blueprint for Action to Prevent Epidemics, and continue to be a Public Health Emergency of International Concern (PHEIC) today. ZIKV pathogenicity is initiated by viral infection and propagation across multiple placental and fetal tissue barriers, and is critically strengthened by subverting host immunity. ZIKV immune evasion involves viral non-structural proteins, genomic and non-coding RNA and microRNA (miRNA) to modulate interferon (IFN) signaling and production, interfering with intracellular signal pathways and autophagy, and promoting cellular environment changes together with secretion of cellular components to escape innate and adaptive immunity and further infect privileged immune organs/tissues such as the placenta and eyes. This review includes a description of recent advances in the understanding of the mechanisms underlying ZIKV immune modulation and evasion that strongly condition viral pathogenesis, which would certainly contribute to the development of anti-ZIKV strategies, drugs, and vaccines.
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14
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Zika Virus and Host Interactions: From the Bench to the Bedside and Beyond. Cells 2020; 9:cells9112463. [PMID: 33198165 PMCID: PMC7697018 DOI: 10.3390/cells9112463] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023] Open
Abstract
Before the emergence of SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2), the causative agent of the current COVID-19 (coronavirus disease 2019) pandemic [...].
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15
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Yang SNY, Atkinson SC, Wang C, Lee A, Bogoyevitch MA, Borg NA, Jans DA. The broad spectrum antiviral ivermectin targets the host nuclear transport importin α/β1 heterodimer. Antiviral Res 2020; 177:104760. [PMID: 32135219 DOI: 10.1016/j.antiviral.2020.104760] [Citation(s) in RCA: 193] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 02/28/2020] [Accepted: 02/28/2020] [Indexed: 12/11/2022]
Abstract
Infection by RNA viruses such as human immunodeficiency virus (HIV)-1, influenza, and dengue virus (DENV) represent a major burden for human health worldwide. Although RNA viruses replicate in the infected host cell cytoplasm, the nucleus is central to key stages of the infectious cycle of HIV-1 and influenza, and an important target of DENV nonstructural protein 5 (NS5) in limiting the host antiviral response. We previously identified the small molecule ivermectin as an inhibitor of HIV-1 integrase nuclear entry, subsequently showing ivermectin could inhibit DENV NS5 nuclear import, as well as limit infection by viruses such as HIV-1 and DENV. We show here that ivermectin's broad spectrum antiviral activity relates to its ability to target the host importin (IMP) α/β1 nuclear transport proteins responsible for nuclear entry of cargoes such as integrase and NS5. We establish for the first time that ivermectin can dissociate the preformed IMPα/β1 heterodimer, as well as prevent its formation, through binding to the IMPα armadillo (ARM) repeat domain to impact IMPα thermal stability and α-helicity. We show that ivermectin inhibits NS5-IMPα interaction in a cell context using quantitative bimolecular fluorescence complementation. Finally, we show for the first time that ivermectin can limit infection by the DENV-related West Nile virus at low (μM) concentrations. Since it is FDA approved for parasitic indications, ivermectin merits closer consideration as a broad spectrum antiviral of interest.
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Affiliation(s)
- Sundy N Y Yang
- Nuclear Signalling Laboratory, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia
| | - Sarah C Atkinson
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia
| | - Chunxiao Wang
- Nuclear Signalling Laboratory, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia
| | - Alexander Lee
- Nuclear Signalling Laboratory, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia
| | - Marie A Bogoyevitch
- Department of Biochemistry and Molecular Biology, University of Melbourne, Melbourne, Australia
| | - Natalie A Borg
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia
| | - David A Jans
- Nuclear Signalling Laboratory, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Vic, 3800, Australia.
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