1
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Roy S, Pokharel P, Piganelli JD. Decoding the immune dance: Unraveling the interplay between beta cells and type 1 diabetes. Mol Metab 2024; 88:101998. [PMID: 39069156 DOI: 10.1016/j.molmet.2024.101998] [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: 05/11/2024] [Revised: 07/12/2024] [Accepted: 07/23/2024] [Indexed: 07/30/2024] Open
Abstract
BACKGROUND Type 1 diabetes (T1D) is an autoimmune disease characterized by the specific destruction of insulin-producing beta cells in the pancreas by the immune system, including CD4 cells which orchestrate the attack and CD8 cells which directly destroy the beta cells, resulting in the loss of glucose homeostasis. SCOPE OF REVIEW This comprehensive document delves into the complex interplay between the immune system and beta cells, aiming to shed light on the mechanisms driving their destruction in T1D. Insights into the genetic predisposition, environmental triggers, and autoimmune responses provide a foundation for understanding the autoimmune attack on beta cells. From the role of viral infections as potential triggers to the inflammatory response of beta cells, an intricate puzzle starts to unfold. This exploration highlights the importance of beta cells in breaking immune tolerance and the factors contributing to their targeted destruction. Furthermore, it examines the potential role of autophagy and the impact of cytokine signaling on beta cell function and survival. MAJOR CONCLUSIONS This review collectively represents current research findings on T1D which offers valuable perspectives on novel therapeutic approaches for preserving beta cell mass, restoring immune tolerance, and ultimately preventing or halting the progression of T1D. By unraveling the complex dynamics between the immune system and beta cells, we inch closer to a comprehensive understanding of T1D pathogenesis, paving the way for more effective treatments and ultimately a cure.
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Affiliation(s)
- Saptarshi Roy
- Department of Endocrinology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Pravil Pokharel
- Department of Endocrinology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States
| | - Jon D Piganelli
- Department of Endocrinology, Indiana University School of Medicine, Indianapolis, IN, 46202, United States.
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2
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Kaur G, Yap T, Ramani R, McCullough M, Singh A. Assessing bias in the causal role of HPV in oral cancer: A systematic review and meta-analysis. Oral Dis 2024. [PMID: 38956902 DOI: 10.1111/odi.15062] [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: 10/20/2023] [Revised: 05/23/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
OBJECTIVE High-risk human papillomaviruses (HPV) are an established cause of oropharyngeal cancer. Their relationship with oral cancer remains unclear with detection ranging from 0% to 100%. HPV DNA detection or evidence of exposure alone is insufficient to conclude causality. This systematic review assesses the extent of bias in studies of HPV detection in cancers of the oral cavity. METHODS PubMed, Ovid MEDLINE, EMBASE, and PsycInfo databases were searched for observational studies reporting the effect of HPV in oral cavity specific cancers. RESULTS All 15 included studies presented HPV DNA detection or serum HPV-antibodies, none included mRNA E6/E7 analysis. Cases with oral cancer had 5.36 times (95% CI 3.29-8.72) higher odds of having HPV detected compared to controls. The odds of HPV detection were higher in cell-based (OR 6.93; 95% CI 0.82-58.55) and tissue samples (OR 5.28; 95% CI 3.41-8.18) than blood-based samples (OR 3.36; 95% CI 1.53-7.40). CONCLUSION When cancer site is clearly differentiated between oropharynx and oral cavity, 12 studies showed strong association between HPV and oral cancer, but the available estimates lack internal validity due to inconsistent measurements, high confounding, and lack of gold standard testing. There is not high-quality evidence to conclude a causal relationship of HPV with oral cancer.
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Affiliation(s)
- Gagandeep Kaur
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
| | - Tami Yap
- Melbourne Dental School, University of Melbourne, Melbourne, Victoria, Australia
| | - Rishi Ramani
- Melbourne Dental School, University of Melbourne, Melbourne, Victoria, Australia
| | - Michael McCullough
- Melbourne Dental School, University of Melbourne, Melbourne, Victoria, Australia
| | - Ankur Singh
- Centre for Epidemiology and Biostatistics, Melbourne School of Population and Global Health, University of Melbourne, Melbourne, Victoria, Australia
- Melbourne Dental School, University of Melbourne, Melbourne, Victoria, Australia
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3
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Pérez-Isidoro R, Valdez-Lara AG, Díaz-Salazar AJ, Hoeppener S, Guerrero-Sánchez C, Quintana-Owen P, Ruiz-Suárez JC, Schubert US, Ayora-Talavera G, De Jesús-Téllez MA, Saldívar-Guerra E. Biophysical investigation of liposome systems decorated with bioconjugated copolymers in the presence of amantadine. J Mater Chem B 2024; 12:5823-5837. [PMID: 38757473 DOI: 10.1039/d4tb00171k] [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: 05/18/2024]
Abstract
Liposome-based technologies derived from lipids and polymers (e.g., PEGylated liposomes) have been recognized because of their applications in nanomedicine. However, since such systems represent myriad challenges and may promote immune responses, investigation of new biomaterials is mandatory. Here, we report on a biophysical investigation of liposomes decorated with bioconjugated copolymers in the presence (or absence) of amantadine (an antiviral medication). First, copolymers of poly(N,N-dimethylacrylamide-co-fluoresceinacrylate-co-acrylic acid-N-succinimide ester)-block-poly(N-isopropylacrylamide) (PDMA-b-PNIPAM) containing a fluorescence label were biofunctionalized with short peptides that resemble the sequence of the loops 220 and 130 of the binding receptor of the hemagglutinin (HA) protein of the influenza A virus. Then, the bioconjugated copolymers were self-assembled along with liposomes composed of 1,2 dimyristoyl-sn-glycero-3-phosphocholine, sphingomyelin, and cholesterol (MSC). These biohybrid systems, with and without amantadine, were systematically characterized using differential scanning calorimetry (DSC), dynamic light scattering (DLS), and cryogenic transmission electron microscopy (cryoTEM). Finally, the systems were tested in an in vitro study to evaluate cytotoxicity and direct immunofluorescence in Madin Darbin Canine Kidney (MDCK) cells. The biohybrid systems displayed long-term stability, thermo-responsiveness, hydrophilic-hydrophobic features, and fluorescence properties and were presumable endowed with cell targeting properties intrinsically integrated into the amino acid sequences of the utilized peptides, which indeed turn them into promising nanodevices for biomedical applications.
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Affiliation(s)
- Rosendo Pérez-Isidoro
- Centro de Investigación en Química Aplicada (CIQA), Enrique Reyna, 140, 25294 Saltillo, Coahuila, Mexico.
| | | | - Alma Jessica Díaz-Salazar
- Laboratorio de Bio-fisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, 04510 México City, Mexico
| | - Stephanie Hoeppener
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 97743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Carlos Guerrero-Sánchez
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 97743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Patricia Quintana-Owen
- Departamento de Física Aplicada, CINVESTAV-IPN, Unidad Mérida, A.P. 73, Cordemex, 97310 Mérida, Yucatán, Mexico
| | | | - Ulrich S Schubert
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 97743 Jena, Germany.
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743 Jena, Germany
| | - Guadalupe Ayora-Talavera
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstrasse 10, 97743 Jena, Germany.
| | | | - Enrique Saldívar-Guerra
- Centro de Investigación en Química Aplicada (CIQA), Enrique Reyna, 140, 25294 Saltillo, Coahuila, Mexico.
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4
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Waller SJ, Butcher RG, Lim L, McInnes K, Holmes EC, Geoghegan JL. The radiation of New Zealand's skinks and geckos is associated with distinct viromes. BMC Ecol Evol 2024; 24:81. [PMID: 38872095 PMCID: PMC11170836 DOI: 10.1186/s12862-024-02269-4] [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: 02/14/2024] [Accepted: 06/10/2024] [Indexed: 06/15/2024] Open
Abstract
BACKGROUND New Zealand is home to over 120 native endemic species of skinks and geckos that radiated over the last 20-40 million years, likely driven by the exploitation of diverse habitats formed during the Miocene. The recent radiation of animal hosts may facilitate cross-species virus transmission, likely reflecting their close genetic relationships and therefore relatively low barriers for viruses to emerge in new hosts. Conversely, as animal hosts adapt to new niches, even within specific geographic locations, so too could their viruses. Consequently, animals that have niche-specialised following radiations may be expected to harbour genetically distinct viruses. Through a metatranscriptomic analysis of eight of New Zealand's native skink and gecko species, as well as the only introduced lizard species, the rainbow skink (Lampropholis delicata), we aimed to reveal the diversity of viruses in these hosts and determine whether and how the radiation of skinks and geckos in New Zealand has impacted virus diversity and evolution. RESULTS We identified a total of 15 novel reptilian viruses spanning 11 different viral families, across seven of the nine species sampled. Notably, we detected no viral host-switching among the native animals analysed, even between those sampled from the same geographic location. This is compatible with the idea that host speciation has likely resulted in isolated, niche-constrained viral populations that have prevented cross-species transmission. Using a protein structural similarity-based approach, we further identified a highly divergent bunya-like virus that potentially formed a new family within the Bunyavirales. CONCLUSIONS This study has broadened our understanding of reptilian viruses within New Zealand and illustrates how niche adaptation may limit viral-host interactions.
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Affiliation(s)
- Stephanie J Waller
- Department of Microbiology and Immunology, University of Otago, Dunedin, 9016, New Zealand
| | - Richelle G Butcher
- Tāwharau Ora, School of Veterinary Science, Massey University, University Avenue, Fitzherbert, Palmerston North, 4442, New Zealand
| | - Lauren Lim
- Department of Microbiology and Immunology, University of Otago, Dunedin, 9016, New Zealand
| | - Kate McInnes
- Department of Conservation, P.O. Box 10420, Wellington, 6143, New Zealand
| | - Edward C Holmes
- School of Medical Sciences, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Jemma L Geoghegan
- Department of Microbiology and Immunology, University of Otago, Dunedin, 9016, New Zealand.
- Institute of Environmental Science and Research, Wellington, New Zealand.
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5
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Budicini MR, Rodriguez-Irizarry VJ, Maples RW, Pfeiffer JK. Murine norovirus mutants adapted to replicate in human cells reveal a post-entry restriction. J Virol 2024; 98:e0004724. [PMID: 38651898 PMCID: PMC11092334 DOI: 10.1128/jvi.00047-24] [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: 01/10/2024] [Accepted: 04/01/2024] [Indexed: 04/25/2024] Open
Abstract
RNA viruses lack proofreading in their RNA polymerases and therefore exist as genetically diverse populations. By exposing these diverse viral populations to selective pressures, viruses with mutations that confer fitness advantages can be enriched. To examine factors important for viral tropism and host restriction, we passaged murine norovirus (MNV) in a human cell line, HeLa cells, to select mutant viruses with increased fitness in non-murine cells. A major determinant of host range is expression of the MNV receptor CD300lf on mouse cells, but additional host factors may limit MNV replication in human cells. We found that viruses passaged six times in HeLa cells had enhanced replication compared with the parental virus. The passaged viruses had several mutations throughout the viral genome, which were primarily located in the viral non-structural coding regions. Although viral attachment was not altered for the passaged viruses, their replication was higher than the parental virus when the entry was bypassed, suggesting that the mutant viruses overcame a post-entry block in human cells. Three mutations in the viral NS1 protein were sufficient for enhanced post-entry replication in human cells. We found that the human cell-adapted MNV variants had reduced fitness in murine BV2 cells and infected mice, with reduced viral titers. These results suggest a fitness tradeoff, where increased fitness in a non-native host cell reduces fitness in a natural host environment. Overall, this work suggests that MNV tropism is determined by the presence of not only the viral receptor but also post-entry factors. IMPORTANCE Viruses infect specific species and cell types, which is dictated by the expression of host factors required for viral entry as well as downstream replication steps. Murine norovirus (MNV) infects mouse cells, but not human cells. However, human cells expressing the murine CD300lf receptor support MNV replication, suggesting that receptor expression is a major determinant of MNV tropism. To determine whether other factors influence MNV tropism, we selected for variants with enhanced replication in human cells. We identified mutations that enhance MNV replication in human cells and demonstrated that these mutations enhance infection at a post-entry replication step. Therefore, MNV infection of human cells is restricted at both entry and post-entry stages. These results shed new light on factors that influence viral tropism and host range.
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Affiliation(s)
- Melissa R. Budicini
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Robert W. Maples
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Julie K. Pfeiffer
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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6
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Sun M, Manson ML, Guo T, de Lange ECM. CNS Viral Infections-What to Consider for Improving Drug Treatment: A Plea for Using Mathematical Modeling Approaches. CNS Drugs 2024; 38:349-373. [PMID: 38580795 PMCID: PMC11026214 DOI: 10.1007/s40263-024-01082-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/10/2024] [Indexed: 04/07/2024]
Abstract
Neurotropic viruses may cause meningitis, myelitis, encephalitis, or meningoencephalitis. These inflammatory conditions of the central nervous system (CNS) may have serious and devastating consequences if not treated adequately. In this review, we first summarize how neurotropic viruses can enter the CNS by (1) crossing the blood-brain barrier or blood-cerebrospinal fluid barrier; (2) invading the nose via the olfactory route; or (3) invading the peripheral nervous system. Neurotropic viruses may then enter the intracellular space of brain cells via endocytosis and/or membrane fusion. Antiviral drugs are currently used for different viral CNS infections, even though their use and dosing regimens within the CNS, with the exception of acyclovir, are minimally supported by clinical evidence. We therefore provide considerations to optimize drug treatment(s) for these neurotropic viruses. Antiviral drugs should cross the blood-brain barrier/blood cerebrospinal fluid barrier and pass the brain cellular membrane to inhibit these viruses inside the brain cells. Some antiviral drugs may also require intracellular conversion into their active metabolite(s). This illustrates the need to better understand these mechanisms because these processes dictate drug exposure within the CNS that ultimately determine the success of antiviral drugs for CNS infections. Finally, we discuss mathematical model-based approaches for optimizing antiviral treatments. Thereby emphasizing the potential of CNS physiologically based pharmacokinetic models because direct measurement of brain intracellular exposure in living humans faces ethical restrictions. Existing physiologically based pharmacokinetic models combined with in vitro pharmacokinetic/pharmacodynamic information can be used to predict drug exposure and evaluate efficacy of antiviral drugs within the CNS, to ultimately optimize the treatments of CNS viral infections.
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Affiliation(s)
- Ming Sun
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Center for Drug Research, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Martijn L Manson
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Center for Drug Research, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Tingjie Guo
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Center for Drug Research, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands
| | - Elizabeth C M de Lange
- Division of Systems Pharmacology and Pharmacy, Leiden Academic Center for Drug Research, Leiden University, Einsteinweg 55, 2333 CC, Leiden, The Netherlands.
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7
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Viana JT, Rocha RDS, Maggioni R. Immunological lectins in shrimp Penaeus vannamei challenged with infectious myonecrosis virus (IMNV) under low-salinity conditions. FISH & SHELLFISH IMMUNOLOGY 2024; 148:109471. [PMID: 38452959 DOI: 10.1016/j.fsi.2024.109471] [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: 11/30/2023] [Revised: 02/26/2024] [Accepted: 02/28/2024] [Indexed: 03/09/2024]
Abstract
Lectins are proteins capable of recognizing and binding to glycan in a specific way. In invertebrates, lectins are a crucial group of Pattern Recognition Proteins (PRRs), activating cellular and humoral responses in the innate immune system. The shrimp Penaeus vannamei is the main crustacean cultivated worldwide, however, the productivity of cultures is strongly affected by diseases, mainly viral ones, such as Infectious Myonecrosis (IMN). Thus, we investigated the participation of five lectins (LvAV, LvCTL4, LvCTL5, LvCTLU, and LvLdlrCTL) in IMNV-challenged shrimp. We verified upregulation gene profiles of lectins after IMNV-challenge, especially in hepatopancreas and gills, in addition to an increase in total hemocytes count (THC) after to 12 h post-infection (hpi). The bioinformatics characterization also revealed several sites of post-translational modification (PTM), such as phosphorylation and glycosylation, which possibly influence the action and stabilization of these lectins. We conclude that LvLdlrCTL and LvCTL5 are the lectins with greater participation in the activation of the immune system against IMNV, showing the greatest potential for PTM, higher upregulation levels, and overlapping with the THC and IMNV viral load.
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Affiliation(s)
- Jhonatas Teixeira Viana
- Center for the Diagnosis of Diseases of Aquatic Organisms, Marine Sciences Institute, Federal University of Ceara, 60165-081, Fortaleza, CE, Brazil; Federal Institute of Education, Science and Technology of Ceara, 62580-000, Acaraú, CE, Brazil.
| | - Rafael Dos Santos Rocha
- Center for the Diagnosis of Diseases of Aquatic Organisms, Marine Sciences Institute, Federal University of Ceara, 60165-081, Fortaleza, CE, Brazil
| | - Rodrigo Maggioni
- Center for the Diagnosis of Diseases of Aquatic Organisms, Marine Sciences Institute, Federal University of Ceara, 60165-081, Fortaleza, CE, Brazil
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8
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Sant'Anna MB, Kimura LF, Vieira WF, Zambelli VO, Novaes LS, Hösch NG, Picolo G. Environmental factors and their impact on chronic pain development and maintenance. Phys Life Rev 2024; 48:176-197. [PMID: 38320380 DOI: 10.1016/j.plrev.2024.01.007] [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: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/08/2024]
Abstract
It is more than recognized and accepted that the environment affects the physiological responses of all living things, from bacteria to superior vertebrates, constituting an important factor in the evolution of all species. Environmental influences range from natural processes such as sunlight, seasons of the year, and rest to complex processes like stress and other mood disorders, infections, and air pollution, being all of them influenced by how each creature deals with them. In this chapter, it will be discussed how some of the environmental elements affect directly or indirectly neuropathic pain, a type of chronic pain caused by a lesion or disease of the somatosensory nervous system. For that, it was considered the edge of knowledge in translational research, thus including data from human and experimental animals as well as the applicability of such findings.
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Affiliation(s)
| | - Louise Faggionato Kimura
- Laboratory of Pain and Signaling, Butantan Institute, São Paulo, Brazil; Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, USA
| | - Willians Fernando Vieira
- Laboratory of Functional Neuroanatomy of Pain, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | | | - Leonardo Santana Novaes
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Gisele Picolo
- Laboratory of Pain and Signaling, Butantan Institute, São Paulo, Brazil.
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9
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Budicini MR, Rodriguez-Irizarry VJ, Maples RW, Pfeiffer JK. Murine norovirus mutants adapted to replicate in human cells reveal a post-entry restriction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.11.575274. [PMID: 38260699 PMCID: PMC10802625 DOI: 10.1101/2024.01.11.575274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
RNA viruses lack proofreading in their RNA polymerases and therefore exist as genetically diverse populations. By exposing these diverse viral populations to selective pressures, viruses with mutations that confer fitness advantages can be enriched. To examine factors important for viral tropism and host restriction, we passaged murine norovirus (MNV) in a human cell line, HeLa cells, to select for mutant viruses with increased fitness in non-murine cells. A major determinant of host range is expression of the MNV receptor CD300lf on mouse cells, but additional host factors may limit MNV replication in human cells. We found that viruses passaged six times in HeLa cells had enhanced replication compared with the parental virus. The passaged viruses had several mutations throughout the viral genome, which were primarily located in the viral non-structural coding regions. While viral attachment was not altered for the passaged viruses, their replication was higher than the parental virus when entry was bypassed, suggesting the mutant viruses overcame a post-entry block in human cells. Three mutations in the viral NS1 protein were sufficient for enhanced post-entry replication in human cells. We found that the human cell-adapted MNV variants had reduced fitness in mouse BV2 cells. Although the mutant viruses had increased fitness in HeLa cells, they did not have increased fitness in mice. Overall, this work suggests that MNV tropism is not only determined by the presence of the viral receptor but also post-entry factors.
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Affiliation(s)
- Melissa R. Budicini
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | | | - Robert W. Maples
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
| | - Julie K. Pfeiffer
- Department of Microbiology, University of Texas Southwestern Medical Center, Dallas, Texas, USA
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10
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Capendale PE, Wolthers KC, Pajkrt D. What is a neurotropic virus: Discrepancies in terminology between clinical and basic science. MED 2023; 4:660-663. [PMID: 37837961 DOI: 10.1016/j.medj.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 07/03/2023] [Accepted: 07/04/2023] [Indexed: 10/16/2023]
Abstract
Technological advancements allow for the use of more physiologically relevant models to study viral neuropathology. This results in closure of the gap between clinical and basic research. We discuss the current discrepancy in the use of terminology around viral CNS infections, which impedes interdisciplinary communication and translation of findings.
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Affiliation(s)
- Pamela E Capendale
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Locatie Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100 AZ Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Locatie Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100 AZ Amsterdam, the Netherlands.
| | - Katja C Wolthers
- OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Locatie Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100 AZ Amsterdam, the Netherlands
| | - Dasja Pajkrt
- Emma Children's Hospital, Department of Pediatric Infectious Diseases, Amsterdam UMC, Locatie Academic Medical Center, Amsterdam Institute for Infection and Immunity, Amsterdam Institute for Reproduction and Development, University of Amsterdam, Meibergdreef 9, 1100 AZ Amsterdam, the Netherlands; OrganoVIR Labs, Department of Medical Microbiology, Amsterdam UMC, Locatie Academic Medical Center, Amsterdam Institute for Infection and Immunity, University of Amsterdam, Meibergdreef 9, 1100 AZ Amsterdam, the Netherlands
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11
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Ravindran S, Lahon A. Tropism and immune response of chikungunya and zika viruses: An overview. Cytokine 2023; 170:156327. [PMID: 37579710 DOI: 10.1016/j.cyto.2023.156327] [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: 10/10/2022] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/16/2023]
Abstract
Zika virus (ZIKV) and chikungunya virus (CHIKV) are two medically important vector-borne viruses responsible for causing significant disease burden in humans, including neurological sequelae/complications. Besides sharing some common clinical features, ZIKV has major shares in causing microcephaly and brain malformations in developing foetus, whereas CHIKV causes chronic joint pain/swelling in infected individuals. Both viruses have a common route of entry to the host body. i.e., dermal site of inoculation through the bite of an infected mosquito and later taken up by different immune cells for further dissemination to other areas of the host body that lead to a range of immune responses via different pathways. The immune responses generated by both viruses have similar characteristics with varying degrees of inflammation and activation of immune cells. However, the overall response of immune cells is not fully explored in the context of ZIKV and CHIKV infection. The knowledge of cellular tropism and the immune response is the key to understanding the mechanisms of viral immunity and pathogenesis, which may allow to develop novel therapeutic strategies for these viral infections. This review aims to discuss recent advancements and identify the knowledge gaps in understanding the mechanism of cellular tropism and immune response of CHIKV and ZIKV.
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Affiliation(s)
- Shilpa Ravindran
- Institute of Advanced Virology, Thiruvananthapuram, Kerala 695317, India
| | - Anismrita Lahon
- Institute of Advanced Virology, Thiruvananthapuram, Kerala 695317, India.
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12
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Zimmer O, Walter M, Remmert M, Maier O, Witzgall R, Goepferich A. Impact of interferon-γ on the target cell tropism of nanoparticles. J Control Release 2023; 362:325-341. [PMID: 37598888 DOI: 10.1016/j.jconrel.2023.08.034] [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: 04/17/2023] [Revised: 08/04/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
Interferon-γ (IFN-γ) is well known to reduce the infectivity of viral pathogens by altering their tissue tropism. This effect is induced by upregulation of cholesterol 25-hydroxylase (CH25H). Given the similarity of viral pathogens and ligand-functionalized nanoparticles in the underlying strategy of receptor-mediated cell recognition, it appears conceivable that IFN-γ exceeds similar effects on nanoparticles. Concretely, IFN-γ-induced activation of CH25H could decrease nanoparticle avidity for target cells via depletion of clathrin-coated pits. We hypothesized that this effect would cause deterioration of target-cell specific accumulation of nanoparticles. To prove our hypothesis, we investigated the cell tropism of angiotensin II functionalized nanoparticles (NPLys-Ang II) in a co-culture system of angiotensin II subtype 1 receptor (AT1R) positive rat mesangial target cells (rMCs) and AT1R-negative HeLa off-target cells. In the presence of IFN-γ we observed an up to 5-fold loss of target cell preference for NPLys-Ang II. Thus, our in vitro results suggest a strong influence of IFN-γ on nanoparticle distribution, which is relevant in the context of nanotherapeutic approaches to cancer treatment, as IFN-γ is strongly expressed in tumors. For the target cell tropism of viruses, our results provide a conclusive hypothesis for the underlying mechanism behind non-directed viral distribution in the presence of IFN-γ.
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Affiliation(s)
- Oliver Zimmer
- Department of Pharmaceutical Technology, University of Regensburg, Regensburg, Bavaria 93053, Germany
| | - Melanie Walter
- Department of Pharmaceutical Technology, University of Regensburg, Regensburg, Bavaria 93053, Germany
| | - Marius Remmert
- Department of Pharmaceutical Technology, University of Regensburg, Regensburg, Bavaria 93053, Germany
| | - Olga Maier
- Institute for Molecular and Cellular Anatomy, University of Regensburg, Regensburg, Bavaria 93053, Germany
| | - Ralph Witzgall
- Institute for Molecular and Cellular Anatomy, University of Regensburg, Regensburg, Bavaria 93053, Germany
| | - Achim Goepferich
- Department of Pharmaceutical Technology, University of Regensburg, Regensburg, Bavaria 93053, Germany.
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Zhang H, Du Y, Qi L, Xiao S, Braun FK, Kogiso M, Huang Y, Huang F, Abdallah A, Suarez M, Karthick S, Ahmed NM, Salsman VS, Baxter PA, Su JM, Brat DJ, Hellenbeck PL, Teo WY, Patel AJ, Li XN. Targeting GBM with an Oncolytic Picornavirus SVV-001 alone and in combination with fractionated Radiation in a Novel Panel of Orthotopic PDX models. J Transl Med 2023; 21:444. [PMID: 37415222 PMCID: PMC10324131 DOI: 10.1186/s12967-023-04237-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] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/30/2023] [Indexed: 07/08/2023] Open
Abstract
BACKGROUND Animal models representing different molecular subtypes of glioblastoma multiforme (GBM) is desired for developing new therapies. SVV-001 is an oncolytic virus selectively targeting cancer cells. It's capacity of passing through the blood brain barrier makes is an attractive novel approach for GBM. MATERIALS AND METHODS 23 patient tumor samples were implanted into the brains of NOD/SCID mice (1 × 105 cells/mouse). Tumor histology, gene expression (RNAseq), and growth rate of the developed patient-derived orthotopic xenograft (PDOX) models were compared with the originating patient tumors during serial subtransplantations. Anti-tumor activities of SVV-001 were examined in vivo; and therapeutic efficacy validated in vivo via single i.v. injection (1 × 1011 viral particle) with or without fractionated (2 Gy/day x 5 days) radiation followed by analysis of animal survival times, viral infection, and DNA damage. RESULTS PDOX formation was confirmed in 17/23 (73.9%) GBMs while maintaining key histopathological features and diffuse invasion of the patient tumors. Using differentially expressed genes, we subclassified PDOX models into proneural, classic and mesenchymal groups. Animal survival times were inversely correlated with the implanted tumor cells. SVV-001 was active in vitro by killing primary monolayer culture (4/13 models), 3D neurospheres (7/13 models) and glioma stem cells. In 2/2 models, SVV-001 infected PDOX cells in vivo without harming normal brain cells and significantly prolonged survival times in 2/2 models. When combined with radiation, SVV-001 enhanced DNA damages and further prolonged animal survival times. CONCLUSION A panel of 17 clinically relevant and molecularly annotated PDOX modes of GBM is developed, and SVV-001 exhibited strong anti-tumor activities in vitro and in vivo.
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Affiliation(s)
- Huiyuan Zhang
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Yuchen Du
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
- Department of Pharmacology, School of Medicine, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Lin Qi
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
- Shenzhen Key Laboratory for Systems Medicine in Inflammatory Diseases, School of Medicine, Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Sophie Xiao
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
| | - Frank K Braun
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Mari Kogiso
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Yulun Huang
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
- Department of Neurosurgery, Dushou Lake Hospital, Soochow University Medical School, Suzhou, Jiangsu, China
| | - Frank Huang
- Division of Experimental Hematology and Cancer Biology, Brain Tumor Center, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati College of Medicine, Cincinnati, OH, 45229, USA
| | - Aalaa Abdallah
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
| | - Milagros Suarez
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA
| | - Sekar Karthick
- Pediatric Brain Tumor Research Office, Cancer and Stem Cell Biology Program, SingHealth Duke-NUS Academic Medical Center, Humphrey Oei Institute of Cancer Research, National Cancer Center Singapore, Duke-NUS Medical School, 169610, Singapore, Singapore
| | | | | | - Patricia A Baxter
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Jack M Su
- Texas Children's Cancer Center, Houston, TX, USA
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Daniel J Brat
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA
| | | | - Wan-Yee Teo
- Texas Children's Cancer Center, Houston, TX, USA
- Pediatric Brain Tumor Research Office, Cancer and Stem Cell Biology Program, SingHealth Duke-NUS Academic Medical Center, Humphrey Oei Institute of Cancer Research, National Cancer Center Singapore, Duke-NUS Medical School, 169610, Singapore, Singapore
| | - Akash J Patel
- Department of Neurosurgery, Baylor College of Medicine, Houston, TX, USA.
- Jan and Dan Duncan Neurological Research Institute, Texas Children's Hospital, Houston, TX, USA.
- Department of Otolaryngology-Head and Neck Surgery, Baylor College of Medicine, Houston, TX, USA.
- Dan Duncan Cancer Center, Baylor College of Medicine, Houston, TX, USA.
| | - Xiao-Nan Li
- Texas Children's Cancer Center, Houston, TX, USA.
- Laboratory of Molecular Neuro-Oncology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX, 77030, USA.
- Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Lurie Children's Hospital of Chicago, Chicago, IL, 60611, USA.
- Robert H. Lurie Comprehensive Cancer Center, Northwestern University, Chicago, IL, 60611, USA.
- Program of Precision Medicine PDOX Modeling of Pediatric Tumors, Department of Pediatrics, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, Chicago, IL, 60611, USA.
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14
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Dunay E, Rukundo J, Atencia R, Cole MF, Cantwell A, Emery Thompson M, Rosati AG, Goldberg TL. Viruses in saliva from sanctuary chimpanzees (Pan troglodytes) in Republic of Congo and Uganda. PLoS One 2023; 18:e0288007. [PMID: 37384730 PMCID: PMC10310015 DOI: 10.1371/journal.pone.0288007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 06/16/2023] [Indexed: 07/01/2023] Open
Abstract
Pathogen surveillance for great ape health monitoring has typically been performed on non-invasive samples, primarily feces, in wild apes and blood in sanctuary-housed apes. However, many important primate pathogens, including known zoonoses, are shed in saliva and transmitted via oral fluids. Using metagenomic methods, we identified viruses in saliva samples from 46 wild-born, sanctuary-housed chimpanzees at two African sanctuaries in Republic of Congo and Uganda. In total, we identified 20 viruses. All but one, an unclassified CRESS DNA virus, are classified in five families: Circoviridae, Herpesviridae, Papillomaviridae, Picobirnaviridae, and Retroviridae. Overall, viral prevalence ranged from 4.2% to 87.5%. Many of these viruses are ubiquitous in primates and known to replicate in the oral cavity (simian foamy viruses, Retroviridae; a cytomegalovirus and lymphocryptovirus; Herpesviridae; and alpha and gamma papillomaviruses, Papillomaviridae). None of the viruses identified have been shown to cause disease in chimpanzees or, to our knowledge, in humans. These data suggest that the risk of zoonotic viral disease from chimpanzee oral fluids in sanctuaries may be lower than commonly assumed.
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Affiliation(s)
- Emily Dunay
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
| | - Joshua Rukundo
- Ngamba Island Chimpanzee Sanctuary / Chimpanzee Trust, Entebbe, Uganda
| | - Rebeca Atencia
- Jane Goodall Institute Congo, Pointe-Noire, Republic of Congo
| | - Megan F. Cole
- Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Averill Cantwell
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Melissa Emery Thompson
- Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, United States of America
| | - Alexandra G. Rosati
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Anthropology, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Tony L. Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, United States of America
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15
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Dunay E, Owens LA, Dunn CD, Rukundo J, Atencia R, Cole MF, Cantwell A, Emery Thompson M, Rosati AG, Goldberg TL. Viruses in sanctuary chimpanzees across Africa. Am J Primatol 2023; 85:e23452. [PMID: 36329642 PMCID: PMC9812903 DOI: 10.1002/ajp.23452] [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: 07/07/2022] [Revised: 10/04/2022] [Accepted: 10/07/2022] [Indexed: 11/06/2022]
Abstract
Infectious disease is a major concern for both wild and captive primate populations. Primate sanctuaries in Africa provide critical protection to thousands of wild-born, orphan primates confiscated from the bushmeat and pet trades. However, uncertainty about the infectious agents these individuals potentially harbor has important implications for their individual care and long-term conservation strategies. We used metagenomic next-generation sequencing to identify viruses in blood samples from chimpanzees (Pan troglodytes) in three sanctuaries in West, Central, and East Africa. Our goal was to evaluate whether viruses of human origin or other "atypical" or unknown viruses might infect these chimpanzees. We identified viruses from eight families: Anelloviridae, Flaviviridae, Genomoviridae, Hepadnaviridae, Parvoviridae, Picobirnaviridae, Picornaviridae, and Rhabdoviridae. The majority (15/26) of viruses identified were members of the family Anelloviridae and represent the genera Alphatorquevirus (torque teno viruses) and Betatorquevirus (torque teno mini viruses), which are common in chimpanzees and apathogenic. Of the remaining 11 viruses, 9 were typical constituents of the chimpanzee virome that have been identified in previous studies and are also thought to be apathogenic. One virus, a novel tibrovirus (Rhabdoviridae: Tibrovirus) is related to Bas-Congo virus, which was originally thought to be a human pathogen but is currently thought to be apathogenic, incidental, and vector-borne. The only virus associated with disease was rhinovirus C (Picornaviridae: Enterovirus) infecting one chimpanzee subsequent to an outbreak of respiratory illness at that sanctuary. Our results suggest that the blood-borne virome of African sanctuary chimpanzees does not differ appreciably from that of their wild counterparts, and that persistent infection with exogenous viruses may be less common than often assumed.
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Affiliation(s)
- Emily Dunay
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Leah A Owens
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Christopher D Dunn
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Joshua Rukundo
- Ngamba Island Chimpanzee Sanctuary/Chimpanzee Trust, Entebbe, Uganda
| | - Rebeca Atencia
- Jane Goodall Institute Congo, Pointe-Noire, Republic of Congo
| | - Megan F Cole
- Department of Anthropology, University of New Mexico, Albuquerque, New Mexico, USA
| | - Averill Cantwell
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Alexandra G Rosati
- Department of Psychology, University of Michigan, Ann Arbor, Michigan, USA.,Department of Anthropology, University of Michigan, Ann Arbor, Michigan, USA
| | - Tony L Goldberg
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin, USA
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16
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Wong KH, Lal SK. Alternative antiviral approaches to combat influenza A virus. Virus Genes 2023; 59:25-35. [PMID: 36260242 PMCID: PMC9832087 DOI: 10.1007/s11262-022-01935-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Accepted: 09/06/2022] [Indexed: 01/14/2023]
Abstract
Influenza A (IAV) is a major human respiratory pathogen that contributes to a significant threat to health security, worldwide. Despite vaccinations and previous immunisations through infections, humans can still be infected with influenza several times throughout their lives. This phenomenon is attributed to the antigenic changes of hemagglutinin (HA) and neuraminidase (NA) proteins in IAV via genetic mutation and reassortment, conferring antigenic drift and antigenic shift, respectively. Numerous findings indicate that slow antigenic drift and reassortment-derived antigenic shift exhibited by IAV are key processes that allow IAVs to overcome the previously acquired host immunity, which eventually leads to the annual re-emergence of seasonal influenza and even pandemic influenza, in rare occasions. As a result, current therapeutic options hit a brick wall quickly. As IAV remains a constant threat for new outbreaks worldwide, the underlying processes of genetic changes and alternative antiviral approaches for IAV should be further explored to improve disease management. In the light of the above, this review discusses the characteristics and mechanisms of mutations and reassortments that contribute to IAV's evolution. We also discuss several alternative RNA-targeting antiviral approaches, namely the CRISPR/Cas13 systems, RNA interference (RNAi), and antisense oligonucleotides (ASO) as potential antiviral approaches against IAV.
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Affiliation(s)
- Ka Heng Wong
- School of Science, Monash University Malaysia, 47500, Bandar Sunway, Selangor DE, Malaysia
| | - Sunil K Lal
- School of Science, Monash University Malaysia, 47500, Bandar Sunway, Selangor DE, Malaysia.
- Tropical Medicine & Biology Multidisciplinary Platform, Monash University Malaysia, Bandar Sunway, 47500, Selangor, Malaysia.
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17
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Pan F, Ma X, Tang X, Xing J, Sheng X, Chi H, Zhan W. Genome characterization of Hirame novirhabdovirus (HIRRV) isolate CNPo2015 and transcriptome analysis of Hirame natural embryo (HINAE) cells infected with CNPo2015. FISH & SHELLFISH IMMUNOLOGY 2023; 132:108493. [PMID: 36509411 DOI: 10.1016/j.fsi.2022.108493] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/02/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
Hirame novirhabdovirus (HIRRV) is a fish rhabdovirus belonging to family Rhabdoviridae, genus Novirhabdovirus, which is highly contagious and virulent, and causes hemorrhagic disease in many fish species. In the present work, the whole genome sequence of HIRRV strain CNPo2015 that previously isolated from cultured flounders was obtained using high-throughput sequencing. It consists of 10,998 nucleotides and encodes six viral proteins arranged in order of 3'-N-P-M-G-NV-L-5'. Among Novirhabdovirus, L protein of CNPo2015 possessed the lowest amino acid sequence divergence with HIRRV isolate CA 9703 and HIRRV 080113, and the highest with Snakehead rhabdovirus. Furthermore, the immune response of Hirame natural embryo (HINAE) cell line to HIRRV infection was characterized by RNA-seq, and the results showed that 1976 differentially expressed genes (DEGs) including 1219 up-regulated and 727 down-regulated genes were identified in the HINAE cells infected with HIRRV at 48 h post infection (hpi). Several KEGG pathways were significantly enriched in the viral infected cells, such as cytokine-cytokine receptor interaction, JAK-STAT signaling pathway, cell cycle, apoptosis, RIG-I-like receptors signaling pathway and P13K-AKT signaling pathway. Post viral infection, the flow cytometric Annexin V/PI assay found that apoptotic rate of HINAE cells showed a slight increase within 3 days and then the early and late apoptotic rate were significantly increased to 41 ± 2.65% and 12.37 ± 2.61% at day 4, respectively. Meanwhile, qRT-PCR results also showed that six apoptosis-related genes (BCL2L1, CASPASE 3, CASPASE 10, FAS, AKT and CDK1) were significantly upregulated. This investigation has not only enriched our knowledge of sequence difference characteristics between CNPo2015 and other Novirhabdoviruses, but also provided a data basis for deeper understanding of immune responses in flounder cells post viral infection.
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Affiliation(s)
- Fenghuang Pan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Xinbiao Ma
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Xiaoqian Tang
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China.
| | - Jing Xing
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Xiuzhen Sheng
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Heng Chi
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
| | - Wenbin Zhan
- Laboratory of Pathology and Immunology of Aquatic Animals, KLMME, Ocean University of China, 5 Yushan Road, Qingdao, 266003, China
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18
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Feige L, Kozaki T, Dias de Melo G, Guillemot V, Larrous F, Ginhoux F, Bourhy H. Susceptibilities of CNS Cells towards Rabies Virus Infection Is Linked to Cellular Innate Immune Responses. Viruses 2022; 15:88. [PMID: 36680128 PMCID: PMC9860954 DOI: 10.3390/v15010088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/13/2022] [Accepted: 12/16/2022] [Indexed: 12/31/2022] Open
Abstract
Rabies is caused by neurotropic rabies virus (RABV), contributing to 60,000 human deaths annually. Even though rabies leads to major public health concerns worldwide, we still do not fully understand factors determining RABV tropism and why glial cells are unable to clear RABV from the infected brain. Here, we compare susceptibilities and immune responses of CNS cell types to infection with two RABV strains, Tha and its attenuated variant Th2P-4M, mutated on phospho- (P-protein) and matrix protein (M-protein). We demonstrate that RABV replicates in human stem cell-derived neurons and astrocytes but fails to infect human iPSC-derived microglia. Additionally, we observed major differences in transcription profiles and quantification of intracellular protein levels between antiviral immune responses mediated by neurons, astrocytes (IFNB1, CCL5, CXCL10, IL1B, IL6, and LIF), and microglia (CCL5, CXCL10, ISG15, MX1, and IL6) upon Tha infection. We also show that P- and M-proteins of Tha mediate evasion of NF-κB- and JAK-STAT-controlled antiviral host responses in neuronal cell types in contrast to glial cells, potentially explaining the strong neuron-specific tropism of RABV. Further, Tha-infected astrocytes and microglia protect neurons from Tha infection via a filtrable and transferable agent. Overall, our study provides novel insights into RABV tropism, showing the interest in studying the interplay of CNS cell types during RABV infection.
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Affiliation(s)
- Lena Feige
- Institut Pasteur, Université de Paris, Lyssavirus Epidemiology and Neuropathology, 75015 Paris, France
| | - Tatsuya Kozaki
- Singapore Immunology Network, Agency for Science, Technology and Research, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
| | - Guilherme Dias de Melo
- Institut Pasteur, Université de Paris, Lyssavirus Epidemiology and Neuropathology, 75015 Paris, France
| | - Vincent Guillemot
- Hub de Bioinformatique et Biostatistique, Département Biologie Computationnelle, Institut Pasteur, 75015 Paris, France
| | - Florence Larrous
- Institut Pasteur, Université de Paris, Lyssavirus Epidemiology and Neuropathology, 75015 Paris, France
| | - Florent Ginhoux
- Singapore Immunology Network, Agency for Science, Technology and Research, 8A Biomedical Grove, Immunos Building, Level 3, Singapore 138648, Singapore
- Shanghai Institute of Immunology, Shanghai Jiao Tong University School of Medicine, 280 South Chongqing Road, Shanghai 200025, China
- Translational Immunology Institute, SingHealth Duke-NUS Academic Medical Center, 20 College Road, Discovery Tower Level 8, Singapore 169856, Singapore
- Inserm U1015, Gustave Roussy, Bâtiment de Médecine Moléculaire, 114 Rue Edouard Vaillant, 94800 Villejuif, France
| | - Hervé Bourhy
- Institut Pasteur, Université de Paris, Lyssavirus Epidemiology and Neuropathology, 75015 Paris, France
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Rahman MM, McFadden G. Role of cytokines in poxvirus host tropism and adaptation. Curr Opin Virol 2022; 57:101286. [PMID: 36427482 PMCID: PMC9704024 DOI: 10.1016/j.coviro.2022.101286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/19/2022] [Accepted: 10/26/2022] [Indexed: 11/23/2022]
Abstract
Poxviruses are a diverse family of double-stranded DNA viruses that cause mild-to-severe disease in selective hosts, including humans. Although most poxviruses are restricted to their hosts, some members can leap host species and cause zoonotic diseases and, therefore, are genuine threats to human and animal health. The recent global spread of monkeypox in humans suggests that zoonotic poxviruses can adapt to a new host, spread rapidly in the new host, and evolve to better evade host innate barriers. Unlike many other viruses, poxviruses express an extensive repertoire of self-defense proteins that play a vital role in the evasion of host innate and adaptive immune responses in their newest host species. The function of these viral immune modulators and host-specific cytokine responses can result in different host tropism and poxvirus disease progression. Here, we review the role of different cytokines that control poxvirus host tropism and adaptation.
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20
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Pires De Souza GA, Le Bideau M, Boschi C, Wurtz N, Colson P, Aherfi S, Devaux C, La Scola B. Choosing a cellular model to study SARS-CoV-2. Front Cell Infect Microbiol 2022; 12:1003608. [PMID: 36339347 PMCID: PMC9634005 DOI: 10.3389/fcimb.2022.1003608] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 10/03/2022] [Indexed: 08/04/2023] Open
Abstract
As new pathogens emerge, new challenges must be faced. This is no different in infectious disease research, where identifying the best tools available in laboratories to conduct an investigation can, at least initially, be particularly complicated. However, in the context of an emerging virus, such as SARS-CoV-2, which was recently detected in China and has become a global threat to healthcare systems, developing models of infection and pathogenesis is urgently required. Cell-based approaches are crucial to understanding coronavirus infection biology, growth kinetics, and tropism. Usually, laboratory cell lines are the first line in experimental models to study viral pathogenicity and perform assays aimed at screening antiviral compounds which are efficient at blocking the replication of emerging viruses, saving time and resources, reducing the use of experimental animals. However, determining the ideal cell type can be challenging, especially when several researchers have to adapt their studies to specific requirements. This review strives to guide scientists who are venturing into studying SARS-CoV-2 and help them choose the right cellular models. It revisits basic concepts of virology and presents the currently available in vitro models, their advantages and disadvantages, and the known consequences of each choice.
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Affiliation(s)
- Gabriel Augusto Pires De Souza
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Marion Le Bideau
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Céline Boschi
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Nathalie Wurtz
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Philippe Colson
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Sarah Aherfi
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
| | - Christian Devaux
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
- Department of Biological Sciences (INSB), Centre National de la Recherche Scientifique, Marseille, France
| | - Bernard La Scola
- Microbes, Evolution, Phylogeny and Infection (MEPHI), UM63, Institut de Recherche pour le Développement (IRD), Assistance Publique - Hôpitaux de Marseille (AP-HM), Aix-Marseille Université, Marseille, France
- Institut Hospitalo-Universitaire Méditerranée Infection, Marseille, France
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A comparison between SARS-CoV-1 and SARS-CoV2: an update on current COVID-19 vaccines. Daru 2022; 30:379-406. [PMID: 36050585 PMCID: PMC9436716 DOI: 10.1007/s40199-022-00446-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 08/05/2022] [Indexed: 10/31/2022] Open
Abstract
Since the outbreak of the novel coronavirus disease 2019 (COVID-19) in Wuhan, China, many health care systems have been heavily engaged in treating and preventing the disease, and the year 2020 may be called as “historic COVID-19 vaccine breakthrough”. Due to the COVID-19 pandemic, many companies have initiated investigations on developing an efficient and safe vaccine against the virus. From Moderna and Pfizer in the United States to PastocoVac in Pasteur Institute of Iran and the University of Oxford in the United Kingdom, different candidates have been introduced to the market. COVID-19 vaccine research has been facilitated based on genome and structural information, bioinformatics predictions, epitope mapping, and data obtained from the previous developments of severe acute respiratory syndrome coronavirus (SARS-CoV or SARS-CoV-1) and middle east respiratory syndrome coronavirus (MERS-CoV) vaccine candidates. SARS-CoV genome sequence is highly homologous to the one in COVID-19 and both viruses use the same receptor, angiotensin-converting enzyme 2 (ACE2). Moreover, the immune system responds to these viruses, partially in the same way. Considering the on-going COVID-19 pandemic and previous attempts to manufacture SARS-CoV vaccines, this paper is going to discuss clinical cases as well as vaccine challenges, including those related to infrastructures, transportation, possible adverse reactions, utilized delivery systems (e.g., nanotechnology and electroporation) and probable vaccine-induced mutations.
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22
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Banerjee S, Wang X, Du S, Zhu C, Jia Y, Wang Y, Cai Q. Comprehensive role of SARS-CoV-2 spike glycoprotein in regulating host signaling pathway. J Med Virol 2022; 94:4071-4087. [PMID: 35488404 PMCID: PMC9348444 DOI: 10.1002/jmv.27820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/21/2022] [Accepted: 04/27/2022] [Indexed: 11/06/2022]
Abstract
Since the outbreak of coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, global public health and the economy have suffered unprecedented damage. Based on the increasing related literature, the characteristics and pathogenic mechanisms of the virus, and epidemiological and clinical features of the disease are being rapidly discovered. The spike glycoprotein (S protein), as a key antigen of SARS-CoV-2 for developing vaccines, antibodies, and drug targets, has been shown to play an important role in viral entry, tissue tropism, and pathogenesis. In this review, we summarize the molecular mechanisms of interaction between S protein and host factors, especially receptor-mediated viral modulation of host signaling pathways, and highlight the progression of potential therapeutic targets, prophylactic and therapeutic agents for prevention and treatment of SARS-CoV-2 infection.
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Affiliation(s)
- Shuvomoy Banerjee
- Department of Biotechnology and BioengineeringKoba Institutional AreaGandhinagarGujaratIndia
| | - Xinyu Wang
- MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, & School of Basic Medical Science, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Shujuan Du
- MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, & School of Basic Medical Science, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Caixia Zhu
- MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, & School of Basic Medical Science, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Yuping Jia
- Shandong Academy of Pharmaceutical SciencesJinanChina
| | - Yuyan Wang
- MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, & School of Basic Medical Science, Shanghai Medical CollegeFudan UniversityShanghaiChina
| | - Qiliang Cai
- MOE&NHC&CAMS Key Laboratory of Medical Molecular Virology, Shanghai Institute of Infections Disease and Biosecurity, & School of Basic Medical Science, Shanghai Medical CollegeFudan UniversityShanghaiChina
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23
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CD24 Expression Dampens the Basal Antiviral State in Human Neuroblastoma Cells and Enhances Permissivity to Zika Virus Infection. Viruses 2022; 14:v14081735. [PMID: 36016357 PMCID: PMC9416398 DOI: 10.3390/v14081735] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
Zika virus (ZIKV) exhibits distinct selectivity for infection of various cells and tissues, but how host cellular factors modulate varying permissivity remains largely unknown. Previous studies showed that the neuroblastoma cell line SK-N-AS (expressing low levels of cellular protein CD24) was highly restricted for ZIKV infection, and that this restriction was relieved by ectopic expression of CD24. We tested the hypothesis that CD24 expression allowed ZIKV replication by suppression of the antiviral response. SK-N-AS cells expressing an empty vector (termed CD24-low cells) showed elevated basal levels of phosphorylated STAT1, IRF-1, IKKE, and NFκB. In response to exogenously added type I interferon (IFN-I), CD24-low cells had higher-level induction of antiviral genes and activity against two IFN-I-sensitive viruses (VSV and PIV5-P/V) compared to SK-N-AS cells with ectopic CD24 expression (termed CD24-high cells). Media-transfer experiments showed that the inherent antiviral state of CD24-low cells was not dependent on a secreted factor such as IFN-I. Transcriptomics analysis revealed that CD24 expression decreased expression of genes involved in intracellular antiviral pathways, including IFN-I, NFκB, and Ras. Our findings that CD24 expression in neuroblastoma cells represses intracellular antiviral pathways support the proposal that CD24 may represent a novel biomarker in cancer cells for susceptibility to oncolytic viruses.
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24
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Viral strategies for targeting spinal neuronal subtypes in adult wild-type rodents. Sci Rep 2022; 12:8627. [PMID: 35606530 PMCID: PMC9126985 DOI: 10.1038/s41598-022-12535-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 05/12/2022] [Indexed: 12/02/2022] Open
Abstract
Targeting specific subtypes of interneurons in the spinal cord is primarily restricted to a small group of genetic model animals. Since the development of new transgenic model animals can be expensive and labor intensive, it is often difficult to generalize these findings and verify them in other model organisms, such as the rat, ferret or monkey, that may be more beneficial in certain experimental investigations. Nevertheless, endogenous enhancers and promoters delivered using an adeno-associated virus (AAV) have been successful in providing expression in specific subtypes of neurons in the forebrain of wildtype animals, and therefore may introduce a shortcut. GABAergic interneurons, for instance, have successfully been targeted using the mDlx promoter, which has recently been developed and is now widely used in wild type animals. Here, we test the specificity and efficiency of the mDlx enhancer for robust targeting of inhibitory interneurons in the lumbar spinal cord of wild-type rats using AAV serotype 2 (AAV2). Since this has rarely been done in the spinal cord, we also test the expression and specificity of the CamKIIa and hSynapsin promoters using serotype 9. We found that AAV2-mDlx does in fact target many neurons that contain an enzyme for catalyzing GABA, the GAD-65, with high specificity and a small fraction of neurons containing an isoform, GAD-67. Expression was also seen in some motor neurons although with low correlation. Viral injections using the CamKIIa enhancer via AAV9 infected in some glutamatergic neurons, but also GABAergic neurons, whereas hSynapsin via AAV9 targets almost all the neurons in the lumbar spinal cord.
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25
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Ye S, Lu C, Qiu Y, Zheng H, Ge X, Wu A, Xia Z, Jiang T, Zhu H, Peng Y. An atlas of human viruses provides new insights into diversity and tissue tropism of human viruses. Bioinformatics 2022; 38:3087-3093. [PMID: 35435220 DOI: 10.1093/bioinformatics/btac275] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 03/25/2022] [Accepted: 04/12/2022] [Indexed: 11/14/2022] Open
Abstract
MOTIVATION Viruses continue to threaten human health. Yet, the complete viral species carried by humans and their infection characteristics have not been fully revealed. RESULTS This study curated an atlas of human viruses from public databases and literature, and built the Human Virus Database (HVD). The HVD contains 1,131 virus species of 54 viral families which were more than twice the number of the human-infecting virus species reported in previous studies. These viruses were identified in human samples including 68 human tissues, the excreta and body fluid. The viral diversity in humans was age-dependent with a peak in the infant and a valley in the teenager. The tissue tropism of viruses was found to be associated with several factors including the viral group (DNA, RNA or reverse-transcribing viruses), enveloped or not, viral genome length and GC content, viral receptors and the virus-interacting proteins. Finally, the tissue tropism of DNA viruses was predicted using a random-forest algorithm with a middle performance. Overall, the study not only provides a valuable resource for further studies of human viruses, but also deepens our understanding towards the diversity and tissue tropism of human viruses. AVAILABILITY The HVD is available at http://computationalbiology.cn/humanVirusBase/#/. SUPPLEMENTARY INFORMATION Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Sifan Ye
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Congyu Lu
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Ye Qiu
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Heping Zheng
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Xingyi Ge
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Aiping Wu
- Center of System Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,Suzhou Institute of Systems Medicine, Suzhou, China
| | - Zanxian Xia
- Department of Cell Biology, Hunan Key Laboratory of Animal Models for Human Diseases and Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, China
| | - Taijiao Jiang
- Center of System Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.,Suzhou Institute of Systems Medicine, Suzhou, China
| | - Haizhen Zhu
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
| | - Yousong Peng
- Bioinformatics Center, College of Biology, Hunan Provincial Key Laboratory of Medical Virology, Hunan University, Changsha, China
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26
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Sachdev S, Potočnik T, Rems L, Miklavčič D. Revisiting the role of pulsed electric fields in overcoming the barriers to in vivo gene electrotransfer. Bioelectrochemistry 2022; 144:107994. [PMID: 34930678 DOI: 10.1016/j.bioelechem.2021.107994] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Revised: 10/15/2021] [Accepted: 11/02/2021] [Indexed: 12/21/2022]
Abstract
Gene therapies are revolutionizing medicine by providing a way to cure hitherto incurable diseases. The scientific and technological advances have enabled the first gene therapies to become clinically approved. In addition, with the ongoing COVID-19 pandemic, we are witnessing record speeds in the development and distribution of gene-based vaccines. For gene therapy to take effect, the therapeutic nucleic acids (RNA or DNA) need to overcome several barriers before they can execute their function of producing a protein or silencing a defective or overexpressing gene. This includes the barriers of the interstitium, the cell membrane, the cytoplasmic barriers and (in case of DNA) the nuclear envelope. Gene electrotransfer (GET), i.e., transfection by means of pulsed electric fields, is a non-viral technique that can overcome these barriers in a safe and effective manner. GET has reached the clinical stage of investigations where it is currently being evaluated for its therapeutic benefits across a wide variety of indications. In this review, we formalize our current understanding of GET from a biophysical perspective and critically discuss the mechanisms by which electric field can aid in overcoming the barriers. We also identify the gaps in knowledge that are hindering optimization of GET in vivo.
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Affiliation(s)
- Shaurya Sachdev
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška cesta 25, 1000 Ljubljana, Slovenia
| | - Tjaša Potočnik
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška cesta 25, 1000 Ljubljana, Slovenia
| | - Lea Rems
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška cesta 25, 1000 Ljubljana, Slovenia
| | - Damijan Miklavčič
- University of Ljubljana, Faculty of Electrical Engineering, Tržaška cesta 25, 1000 Ljubljana, Slovenia.
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27
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Fan W, Christian KM, Song H, Ming GL. Applications of Brain Organoids for Infectious Diseases. J Mol Biol 2022; 434:167243. [PMID: 34536442 PMCID: PMC8810605 DOI: 10.1016/j.jmb.2021.167243] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 12/17/2022]
Abstract
Brain organoids are self-organized three-dimensional aggregates generated from pluripotent stem cells. They exhibit complex cell diversities and organized architectures that resemble human brain development ranging from neural tube formation, neuroepithelium differentiation, neurogenesis and gliogenesis, to neural circuit formation. Rapid advancements in brain organoid culture technologies have allowed researchers to generate more accurate models of human brain development and neurological diseases. These models also allow for direct investigation of pathological processes associated with infectious diseases affecting the nervous system. In this review, we first briefly summarize recent advancements in brain organoid methodologies and neurodevelopmental processes that can be effectively modeled by brain organoids. We then focus on applications of brain organoids to investigate the pathogenesis of neurotropic viral infection. Finally, we discuss limitations of the current brain organoid methodologies as well as applications of other organ specific organoids in the infectious disease research.
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Affiliation(s)
- Wenqiang Fan
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kimberly M Christian
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hongjun Song
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Developmental and Cell Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Epigenetics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA. https://twitter.com/UPenn_SongMing
| | - Guo-Li Ming
- Department of Neuroscience and Mahoney Institute for Neurosciences, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Developmental and Cell Biology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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28
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Gaide N, Lucas MN, Delpont M, Croville G, Bouwman KM, Papanikolaou A, van der Woude R, Gagarinov IA, Boons GJ, De Vries RP, Volmer R, Teillaud A, Vergne T, Bleuart C, Le Loc’h G, Delverdier M, Guérin JL. Pathobiology of highly pathogenic H5 avian influenza viruses in naturally infected Galliformes and Anseriformes in France during winter 2015–2016. Vet Res 2022; 53:11. [PMID: 35164866 PMCID: PMC8842868 DOI: 10.1186/s13567-022-01028-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 12/10/2021] [Indexed: 12/22/2022] Open
Abstract
In late 2015, an epizootic of Highly Pathogenic Avian Influenza (H5Nx) was registered in Southwestern France, including more than 70 outbreaks in commercial poultry flocks. Phylogenetic analyses suggested local emergence of H5 viruses which differed from A/goose/Guangdong/1/1996 clade 2.3.4.4b lineage and shared a unique polybasic cleavage site in their hemagglutinin protein. The present work provides an overview of the pathobiological picture associated with this epizootic in naturally infected chickens, guinea fowls and ducks. Upon necropsy examination, selected tissues were sampled for histopathology, immunohistochemistry and quantitative Real Time Polymerase Chain Reaction. In Galliformes, HPAIVs infection manifested as severe acute systemic vasculitis and parenchymal necrosis and was associated with endothelial expression of viral antigen. In ducks, lesions were mild and infrequent, with sparse antigenic detection in respiratory and digestive mucosae and leukocytes. Tissue quantifications of viral antigen and RNA were higher in chickens and guinea fowls compared to duck. Subsequently, recombinant HA (rHA) was generated from a H5 HPAIV isolated from an infected duck to investigate its glycan-binding affinity for avian mucosae. Glycan-binding analysis revealed strong affinity of rHA for 3’Sialyl-LacNAc and low affinity for Sialyl-LewisX, consistent with a duck-adapted virus similar to A/Duck/Mongolia/54/2001 (H5N2). K222R and S227R mutations on rHA sequence shifted affinity towards Sialyl-LewisX and led to an increased affinity for chicken mucosa, confirming the involvement of these two mutations in the glycan-binding specificity of the HA. Interestingly, the rHA glycan binding pattern of guinea fowl appeared intermediate between duck and chicken. The present study presents a unique pathobiological description of the H5 HPAIVs outbreaks that occurred in 2015–2016 in Southwestern France.
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29
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Shah AU, Li Y, Ouyang W, Wang Z, Zuo J, Shi S, Yu Q, Lin J, Yang Q. From nasal to basal: single-cell sequencing of the bursa of Fabricius highlights the IBDV infection mechanism in chickens. Cell Biosci 2021; 11:212. [PMID: 34915931 PMCID: PMC8675306 DOI: 10.1186/s13578-021-00728-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 12/07/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chickens, important food animals and model organisms, are susceptible to many RNA viruses that invade via the nasal cavity. To determine the nasal entry site of the virus and clarify why avians are susceptible to RNA viruses, infectious bursal disease virus (IBDV) was selected because it is a typical avian RNA virus that infects chickens mainly via the nasal route. RESULTS First, we found that IBDV infected the posterior part of the nasal cavity in chickens, which is rich in lymphoid tissue and allows the virus to be easily transferred to the blood. Via the blood circulation, IBDV infected peripheral blood mononuclear cells (PBMCs) and was transferred to the bursa of Fabricius to damage the IgM + B lymphocyte population. Subsequently, the single-cell RNA sequencing (scRNA-seq) results suggested the more detailed response of different bursal cell populations (B cells, epithelial cells, dendritic cells, and fibroblasts) to IBDV. Regarding B cells, IBDV infection greatly decreased the IgM + B cell population but increased the IgA + B cell population in the bursal follicles. In contrast to B cells, bursal epithelial cells, especially basal cells, accumulated a large number of IBDV particles. Furthermore, we found that both innate RNA sensors and interferon-stimulated genes (ISGs) were highly expressed in the IBDV-infected groups, while dicer and ago2 expression was largely blocked by IBDV infection. This result suggests that dicer-related RNA interference (RNAi) might be an effective antiviral strategy for IBDV infection in avian. CONCLUSION Our study not only comprehensively elaborates on the transmission of airborne IBDV via the intranasal route and establishes the main target cell types for productive IBDV infection but also provides sufficient evidence to explain the cellular antiviral mechanism against IBDV infection.
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Affiliation(s)
- Abid Ullah Shah
- College of Life Sciences, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China.,College of Veterinary Medicine, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China
| | - Yuchen Li
- College of Veterinary Medicine, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China
| | - Wei Ouyang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences/Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing, 210014, People's Republic of China
| | - Zhisheng Wang
- Institute of Veterinary Immunology and Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, People's Republic of China
| | - Jinjiao Zuo
- College of Life Sciences, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China
| | - Song Shi
- Shanghai OE Biotech. Co., Ltd, Shanghai, 201114, People's Republic of China
| | - Qinghua Yu
- College of Veterinary Medicine, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China
| | - Jian Lin
- College of Life Sciences, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China.
| | - Qian Yang
- College of Veterinary Medicine, Nanjing Agricultural University, Wei gang 1, Nanjing, Jiangsu, 210095, People's Republic of China
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30
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Shao Q, Huang J, Li J. Intracellular Replication Inhibitory Effects of Tea Tree Oil on Vesicular Stomatitis Virus and Anti-inflammatory Activities in Vero Cells. Front Vet Sci 2021; 8:759812. [PMID: 34869732 PMCID: PMC8635969 DOI: 10.3389/fvets.2021.759812] [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: 08/17/2021] [Accepted: 10/18/2021] [Indexed: 11/13/2022] Open
Abstract
Viral disease management has been proven difficult, and there are no broadly licensed vaccines or therapeutics. Vesicular stomatitis virus (VSV) is an active pathogen of wild ungulates and livestock; its infection frequently caused irreversible vesicles on the tongue or other positions, leading to enormous economic loss. Tea tree oil (TTO) has been shown to be a popular remedy for many skin diseases owing to its antibacterial, antipruritic, and anti-inflammatory effects. However, the potential effect of TTO on VSV proliferation and the corresponding inflammatory response in cells remain unclear. In this study, methyl thiazolyl tetrazolium assay was used to evaluate the cell viability of TTO, and cytotoxic concentration 50 (CC50) was calculated. Then, fluorescence observation, reverse transcription-quantitative polymerase chain reaction, Western blot (WB), and flow cytometry (FCM) assay were used to evaluate the antiviral effect of TTO against VSV under three manners of pre-infection before medication, co-administration, pretreatment before infection at safe doses to Vero cells. Meanwhile, the mRNA expressions of interleukin 8, tumor necrosis factor α, and ISG56 in cells were also detected. The results showed that the maximum safe concentration of TTO to Vero cells was 0.063% and the CC50 is 0.32%. Most notably, TTO dose-dependently inhibited the VSV GFP fluorescence generation and restrained the replication of VSV in gene and protein levels regardless of the treatment modes. Based on the results of the FCM, effective concentration 50 of TTO against VSV is 0.019%. Similarly, the mRNA expression of the above cytokines induced by viral infection was also remarkably curbed. These findings suggest that TTO emerged blocking, prophylaxis, and treatment action against VSV replication and suppressed the related inflammation in Vero cells. This study provides a novel potential for TTO fighting against viral infection and anti-inflammatory activities in Vero cells.
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Affiliation(s)
- Qi Shao
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Junjie Huang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jingui Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, China.,Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.,Joint International Research Laboratory of Agriculture and Agri-Product Safety, The Ministry of Education of China, Yangzhou University, Yangzhou, China
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31
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Kuka M, Iannacone M. Heterogeneity in antiviral B cell responses: Lessons from the movies. Immunol Rev 2021; 306:224-233. [PMID: 34811768 DOI: 10.1111/imr.13041] [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: 11/04/2021] [Accepted: 11/09/2021] [Indexed: 11/29/2022]
Abstract
Humoral and cellular responses to viral infections coexist in a dynamic equilibrium that often results in efficient viral clearance. However, in some infections one of the two responses prevails, for instance when an overactivation of cytotoxic T cells is accompanied by weak and insufficient antibody responses. Although the cellular response is usually sufficient to control a primary viral infection, in some cases clearance is not complete and persistent infections ensue. In order to design effective therapeutic or vaccination strategies aiming at inducing early and potent neutralizing antibody responses, a deep knowledge of the cellular and molecular determinants of antiviral immune responses is needed. Here, we review our understanding on the spatiotemporal dynamics of antiviral humoral immune responses, with a particular focus on recent studies using intravital imaging approaches as an insightful complement to more traditional techniques.
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Affiliation(s)
- Mirela Kuka
- Division of Immunology, Transplantation and Infectious Diseases and Experimental Imaging Center, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy
| | - Matteo Iannacone
- Division of Immunology, Transplantation and Infectious Diseases and Experimental Imaging Center, IRCCS San Raffaele Scientific Institute and Vita-Salute San Raffaele University, Milan, Italy
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32
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Onisiforou A, Spyrou GM. Identification of viral-mediated pathogenic mechanisms in neurodegenerative diseases using network-based approaches. Brief Bioinform 2021; 22:bbab141. [PMID: 34237135 PMCID: PMC8574625 DOI: 10.1093/bib/bbab141] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 03/01/2021] [Accepted: 03/23/2021] [Indexed: 12/18/2022] Open
Abstract
During the course of a viral infection, virus-host protein-protein interactions (PPIs) play a critical role in allowing viruses to replicate and survive within the host. These interspecies molecular interactions can lead to viral-mediated perturbations of the human interactome causing the generation of various complex diseases. Evidences suggest that viral-mediated perturbations are a possible pathogenic etiology in several neurodegenerative diseases (NDs). These diseases are characterized by chronic progressive degeneration of neurons, and current therapeutic approaches provide only mild symptomatic relief; therefore, there is unmet need for the discovery of novel therapeutic interventions. In this paper, we initially review databases and tools that can be utilized to investigate viral-mediated perturbations in complex NDs using network-based analysis by examining the interaction between the ND-related PPI disease networks and the virus-host PPI network. Afterwards, we present our theoretical-driven integrative network-based bioinformatics approach that accounts for pathogen-genes-disease-related PPIs with the aim to identify viral-mediated pathogenic mechanisms focusing in multiple sclerosis (MS) disease. We identified seven high centrality nodes that can act as disease communicator nodes and exert systemic effects in the MS-enriched Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways network. In addition, we identified 12 KEGG pathways, 5 Reactome pathways and 52 Gene Ontology Immune System Processes by which 80 viral proteins from eight viral species might exert viral-mediated pathogenic mechanisms in MS. Finally, our analysis highlighted the Th17 differentiation pathway, a disease communicator node and part of the 12 underlined KEGG pathways, as a key viral-mediated pathogenic mechanism and a possible therapeutic target for MS disease.
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Affiliation(s)
- Anna Onisiforou
- Department of Bioinformatics, Cyprus Institute of Neurology & Genetics, and the Cyprus School of Molecular Medicine, Cyprus
| | - George M Spyrou
- Department of Bioinformatics, Cyprus Institute of Neurology & Genetics, and professor at the Cyprus School of Molecular Medicine, Cyprus
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33
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DeLong JP, Al-Sammak MA, Al-Ameeli ZT, Dunigan DD, Edwards KF, Fuhrmann JJ, Gleghorn JP, Li H, Haramoto K, Harrison AO, Marston MF, Moore RM, Polson SW, Ferrell BD, Salsbery ME, Schvarcz CR, Shirazi J, Steward GF, Van Etten JL, Wommack KE. Towards an integrative view of virus phenotypes. Nat Rev Microbiol 2021; 20:83-94. [PMID: 34522049 DOI: 10.1038/s41579-021-00612-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/26/2021] [Indexed: 12/25/2022]
Abstract
Understanding how phenotypes emerge from genotypes is a foundational goal in biology. As challenging as this task is when considering cellular life, it is further complicated in the case of viruses. During replication, a virus as a discrete entity (the virion) disappears and manifests itself as a metabolic amalgam between the virus and the host (the virocell). Identifying traits that unambiguously constitute a virus's phenotype is straightforward for the virion, less so for the virocell. Here, we present a framework for categorizing virus phenotypes that encompasses both virion and virocell stages and considers functional and performance traits of viruses in the context of fitness. Such an integrated view of virus phenotype is necessary for comprehensive interpretation of viral genome sequences and will advance our understanding of viral evolution and ecology.
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Affiliation(s)
- John P DeLong
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA.
| | - Maitham A Al-Sammak
- Tropical Biological Research Unit, College of Science, University of Baghdad, Baghdad, Iraq.,Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Zeina T Al-Ameeli
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, USA.,Medical Technical Institutes, Middle Technical University, Baghdad, Iraq
| | - David D Dunigan
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, USA.,Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Kyle F Edwards
- Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, HI, USA
| | - Jeffry J Fuhrmann
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA.,Department of Biological Sciences, University of Delaware, Newark, DE, USA
| | - Jason P Gleghorn
- Department of Biological Sciences, University of Delaware, Newark, DE, USA.,Department of Biomedical Engineering, University of Delaware, Newark, DE, USA
| | - Hanqun Li
- Department of Biological Sciences, University of Delaware, Newark, DE, USA.,Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
| | - Kona Haramoto
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA.,Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
| | - Amelia O Harrison
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA.,Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA
| | - Marcia F Marston
- Department of Biology and Marine Biology, Roger Williams University, Bristol, RI, USA
| | - Ryan M Moore
- Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Shawn W Polson
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA.,Department of Biological Sciences, University of Delaware, Newark, DE, USA.,Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Barbra D Ferrell
- Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.,Center for Bioinformatics and Computational Biology, University of Delaware, Newark, DE, USA
| | - Miranda E Salsbery
- School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, NE, USA
| | | | - Jasmine Shirazi
- Department of Biomedical Engineering, University of Delaware, Newark, DE, USA
| | - Grieg F Steward
- Department of Oceanography, University of Hawai'i at Mānoa, Honolulu, HI, USA
| | - James L Van Etten
- Nebraska Center for Virology, University of Nebraska-Lincoln, Lincoln, NE, USA.,Department of Plant Pathology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - K Eric Wommack
- Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA. .,Department of Biological Sciences, University of Delaware, Newark, DE, USA. .,Delaware Biotechnology Institute, University of Delaware, Newark, DE, USA.
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Taechangam N, Kol A, Arzi B, Borjesson DL. Multipotent Stromal Cells and Viral Interaction: Current Implications for Therapy. Stem Cell Rev Rep 2021; 18:214-227. [PMID: 34347271 PMCID: PMC8335712 DOI: 10.1007/s12015-021-10224-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2021] [Indexed: 12/29/2022]
Abstract
Multipotent stromal cells (MSCs) are widely utilized in therapy for their immunomodulatory properties, but their usage in infectious viral diseases is less explored. This review aimed to collate the current novel use of MSCs in virus-associated conditions, including MSC’s susceptibility to virus infection, antiviral properties of MSCs and their effects on cell-based immune response and implementation of MSC therapy in animal models and human clinical trials of viral diseases. Recent discoveries shed lights on MSC’s capability in suppressing viral replication and augmenting clearance through enhancement of antiviral immunity. MSC therapy may maintain a crucial balance between aiding pathogen clearance and suppressing hyperactive immune response.
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Affiliation(s)
- Nopmanee Taechangam
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Amir Kol
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Boaz Arzi
- Department of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA
| | - Dori L Borjesson
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, Davis, CA, USA.
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35
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Tarasova O, Poroikov V. Machine Learning in Discovery of New Antivirals and Optimization of Viral Infections Therapy. Curr Med Chem 2021; 28:7840-7861. [PMID: 33949929 DOI: 10.2174/0929867328666210504114351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 02/13/2021] [Accepted: 02/24/2021] [Indexed: 11/22/2022]
Abstract
Nowadays, computational approaches play an important role in the design of new drug-like compounds and optimization of pharmacotherapeutic treatment of diseases. The emerging growth of viral infections, including those caused by the Human Immunodeficiency Virus (HIV), Ebola virus, recently detected coronavirus, and some others, leads to many newly infected people with a high risk of death or severe complications. A huge amount of chemical, biological, clinical data is at the disposal of the researchers. Therefore, there are many opportunities to find the relationships between the particular features of chemical data and the antiviral activity of biologically active compounds based on machine learning approaches. Biological and clinical data can also be used for building models to predict relationships between viral genotype and drug resistance, which might help determine the clinical outcome of treatment. In the current study, we consider machine-learning approaches in the antiviral research carried out during the past decade. We overview in detail the application of machine-learning methods for the design of new potential antiviral agents and vaccines, drug resistance prediction, and analysis of virus-host interactions. Our review also covers the perspectives of using the machine-learning approaches for antiviral research, including Dengue, Ebola viruses, Influenza A, Human Immunodeficiency Virus, coronaviruses, and some others.
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Affiliation(s)
- Olga Tarasova
- Department of Bioinformatics, Institute of Biomedical Chemistry, Moscow. Russian Federation
| | - Vladimir Poroikov
- Department of Bioinformatics, Institute of Biomedical Chemistry, Moscow. Russian Federation
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36
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The tetraspanin protein CD9 modulates infection with human herpesvirus 6A and 6B in a CD46-dependent manner. J Virol 2021; 95:JVI.02259-20. [PMID: 33504606 PMCID: PMC8103686 DOI: 10.1128/jvi.02259-20] [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] [Indexed: 01/02/2023] Open
Abstract
Tetraspanins are four-span transmembrane proteins that organize the membrane by forming tetraspanin-enriched microdomains. These have been shown to be important for virus entry. The human herpesvirus (HHV)-6A receptor CD46 is known to form complexes with the tetraspanin CD9 and β1-integrins, however the significance of this for HHV-6A infection remains unexplored. Using a genetic approach, we demonstrate that knock out of CD46 abolishes binding to and infection of SupT1 cells by both HHV-6A and HHV-6B, establishing CD46 as a necessary receptor for productive infection of these cells. Knock out of CD9 in SupT1 cells had no effect on binding of either virus to the cell surface, but it reduced expression of immediate early transcripts to between 25-60% compared with the wild type cells. Although HHV-6B required CD46 for infection of SupT1, infection of Molt3 cells was independent of CD46 expression. Conversely, the absence of CD9 expression promoted infection of Molt3 cells with HHV-6B, indicating a negative role of CD9 for CD46-independent infection. Taken together, these data demonstrate that CD9 modulates infection with HHV-6A/B by promoting CD46-dependent infection and impairing CD46-independent infection. This also suggests that HHV-6A is strictly dependent on CD46 for entry, although other proteins, like CD9, may enhance the infection, whereas HHV-6B is more promiscuous and may use CD134, as demonstrated by others, CD46 in SupT1, and a novel yet unidentified receptor in Molt3 cells.Importance The mechanisms of entry of human herpesvirus (HHV)-6A and HHV-6B into host cells are of significance in order to develop novel drugs that may inhibit infection. To elucidate the contribution of the membrane proteins CD9 and CD46, we employed a genetic approach that eliminated these molecules from the host cell. This demonstrated that CD46 is critical for infection by HHV-6A, whereas infection by HHV-6B appeared to be more promiscuous. The infection of a T-cell line in the absence of CD46 and CD134 strongly suggest that an additional receptor for HHV-6B entry exists. Moreover, elimination of CD9 and subsequent reconstitution experiments demonstrated that CD9 promoted infection with HHV-6A and HHV-6B mediated by CD46, but inhibited infection with HHV-6B that occurred independent of CD46. Together, this demonstrated a CD46-dependent role of CD9 during infection with HHV-6A and HHV-6B and emphasized that HHV-6B may employ different entry mechanisms in various cells.
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Combination Regimens of Favipiravir Plus Interferon Alpha Inhibit Chikungunya Virus Replication in Clinically Relevant Human Cell Lines. Microorganisms 2021; 9:microorganisms9020307. [PMID: 33540830 PMCID: PMC7912990 DOI: 10.3390/microorganisms9020307] [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: 01/11/2021] [Accepted: 01/30/2021] [Indexed: 12/15/2022] Open
Abstract
Chikungunya virus (CHIKV) is an alphavirus associated with a broad tissue tropism for which no antivirals or vaccines are approved. This study evaluated the antiviral potential of favipiravir (FAV), interferon-alpha (IFN), and ribavirin (RBV) against CHIKV as mono- and combination-therapy in cell lines that are clinically relevant to human infection. Cells derived from human connective tissue (HT-1080), neurons (SK-N-MC), and skin (HFF-1) were infected with CHIKV and treated with different concentrations of FAV, IFN, or RBV. Viral supernatant was sampled daily and the burden was quantified by plaque assay on Vero cells. FAV and IFN were the most effective against CHIKV on various cell lines, suppressing the viral burden at clinically achievable concentrations; although the degree of antiviral activity was heavily influenced by cell type. RBV was not effective and demonstrated substantial toxicity, indicating that it is not a feasible candidate for CHIKV. The combination of FAV and IFN was then assessed on all cell lines. Combination therapy enhanced antiviral activity in HT-1080 and SK-N-MC cells, but not in HFF-1 cells. We developed a pharmacokinetic/pharmacodynamic model that described the viral burden and inhibitory antiviral effect. Simulations from this model predicted clinically relevant concentrations of FAV plus IFN completely suppressed CHIKV replication in HT-1080 cells, and considerably slowed down the rate of viral replication in SK-N-MC cells. The model predicted substantial inhibition of viral replication by clinical IFN regimens in HFF-1 cells. Our results highlight the antiviral potential of FAV and IFN combination regimens against CHIKV in clinically relevant cell types.
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38
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Cai J, Yan G. The Identification and Development of a Novel Oncolytic Virus: Alphavirus M1. Hum Gene Ther 2021; 32:138-149. [PMID: 33261513 DOI: 10.1089/hum.2020.271] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Oncolytic virotherapy represents an ideal therapeutic platform for cancer in which natural or engineered viruses selectively replicate in and destroy tumor cells, whereas sparing normal cells. Oncolytic virotherapy is considered as a key contributor in modern immunotherapy. However, several challenges remain with regard to exploiting the potential of oncolytic viruses, such as the lack of biomarkers for precise treatment, the difficulty of systemic administration because of pre-existing neutralizing antibodies to popular oncolytic viral vectors in human serum and the lack of mature lyophilization technology for convenient transport and preservation of viral preparations. The M1 strain, which was isolated on Hainan Island of China in the 1960s, is a member of the alphavirus genus Togaviridae family. It was identified as a novel oncolytic virus in 2014. During the development of M1 virus, many challenges have been overcome: several biomarkers have been identified for precise treatment; systematic administration of M1 is suitable and feasible because of the extremely low percentage of pre-existing neutralizing antibodies in the general population, and a lyophilized powder that maintains high biological stability has been developed. This review provides an encyclopedia of studies supporting M1 as an oncolytic virus, including the biological characteristics, tumor selectivity and its mechanism, tumor killing mechanism, combination therapy, and nonclinical pharmacokinetics of M1 virus. The future development direction of oncolytic virus M1 is also discussed at the end of the review.
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Affiliation(s)
- Jing Cai
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Guangmei Yan
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
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39
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Wang Y, Bruggeman KF, Franks S, Gautam V, Hodgetts SI, Harvey AR, Williams RJ, Nisbet DR. Is Viral Vector Gene Delivery More Effective Using Biomaterials? Adv Healthc Mater 2021; 10:e2001238. [PMID: 33191667 DOI: 10.1002/adhm.202001238] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 10/03/2020] [Indexed: 12/16/2022]
Abstract
Gene delivery has been extensively investigated for introducing foreign genetic material into cells to promote expression of therapeutic proteins or to silence relevant genes. This approach can regulate genetic or epigenetic disorders, offering an attractive alternative to pharmacological therapy or invasive protein delivery options. However, the exciting potential of viral gene therapy has yet to be fully realized, with a number of clinical trials failing to deliver optimal therapeutic outcomes. Reasons for this include difficulty in achieving localized delivery, and subsequently lower efficacy at the target site, as well as poor or inconsistent transduction efficiency. Thus, ongoing efforts are focused on improving local viral delivery and enhancing its efficiency. Recently, biomaterials have been exploited as an option for more controlled, targeted and programmable gene delivery. There is a growing body of literature demonstrating the efficacy of biomaterials and their potential advantages over other delivery strategies. This review explores current limitations of gene delivery and the progress of biomaterial-mediated gene delivery. The combination of biomaterials and gene vectors holds the potential to surmount major challenges, including the uncontrolled release of viral vectors with random delivery duration, poorly localized viral delivery with associated off-target effects, limited viral tropism, and immune safety concerns.
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Affiliation(s)
- Yi Wang
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Kiara F. Bruggeman
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Stephanie Franks
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
| | - Vini Gautam
- Department of Biomedical Engineering The University of Melbourne Melbourne Victoria 3010 Australia
| | - Stuart I. Hodgetts
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Alan R. Harvey
- School of Human Sciences The University of Western Australia Perth WA 6009 Australia
- Perron Institute for Neurological and Translational Science Perth WA 6009 Australia
| | - Richard J. Williams
- The Institute for Mental and Physical Health and Clinical Translation (IMPACT) School of Medicine Deakin University Waurn Ponds VIC 3216 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
| | - David R. Nisbet
- Laboratory of Advanced Biomaterials Research School of Engineering The Australian National University Canberra ACT 2601 Australia
- Biofab3D St. Vincent's Hospital Fitzroy 3065 Australia
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40
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Howard F, Muthana M. Designer nanocarriers for navigating the systemic delivery of oncolytic viruses. Nanomedicine (Lond) 2020; 15:93-110. [PMID: 31868115 DOI: 10.2217/nnm-2019-0323] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Nanotechnology is paving the way for new carrier systems designed to overcome the greatest challenges of oncolytic virotherapy; systemic administration and subsequent implications of immune responses and specific cell binding and entry. Systemic administration of oncolytic agents is vital for disseminated neoplasms, however transition of nanoparticles (NP) to virotherapy has yielded modest results. Their success relies on how they navigate the merry-go-round of often-contradictory phases of NP delivery: circulatory longevity, tissue permeation and cellular interaction, with many studies postulating design features optimal for each phase. This review discusses the optimal design of NPs for the transport of oncolytic viruses within these phases, to determine whether improved virotherapeutic efficacy lies in the pharmacokinetic/pharmacodynamics characteristics of the NP-oncolytic viruses complexes rather than manipulation of the virus and targeting ligands.
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41
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Zhang Y, Wen Z, Shi X, Liu YJ, Eriksson JE, Jiu Y. The diverse roles and dynamic rearrangement of vimentin during viral infection. J Cell Sci 2020; 134:134/5/jcs250597. [PMID: 33154171 DOI: 10.1242/jcs.250597] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Epidemics caused by viral infections pose a significant global threat. Cytoskeletal vimentin is a major intermediate filament (IF) protein, and is involved in numerous functions, including cell signaling, epithelial-mesenchymal transition, intracellular organization and cell migration. Vimentin has important roles for the life cycle of particular viruses; it can act as a co-receptor to enable effective virus invasion and guide efficient transport of the virus to the replication site. Furthermore, vimentin has been shown to rearrange into cage-like structures that facilitate virus replication, and to recruit viral components to the location of assembly and egress. Surprisingly, vimentin can also inhibit virus entry or egress, as well as participate in host-cell defense. Although vimentin can facilitate viral infection, how this function is regulated is still poorly understood. In particular, information is lacking on its interaction sites, regulation of expression, post-translational modifications and cooperation with other host factors. This Review recapitulates the different functions of vimentin in the virus life cycle and discusses how they influence host-cell tropism, virulence of the pathogens and the consequent pathological outcomes. These insights into vimentin-virus interactions emphasize the importance of cytoskeletal functions in viral cell biology and their potential for the identification of novel antiviral targets.
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Affiliation(s)
- Yue Zhang
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Yuquan Road No. 19(A), Shijingshan District, Beijing 100049, China
| | - Zeyu Wen
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China.,University of Chinese Academy of Sciences, Yuquan Road No. 19(A), Shijingshan District, Beijing 100049, China
| | - Xuemeng Shi
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China
| | - Yan-Jun Liu
- Shanghai Institute of Cardiovascular Diseases, and Institutes of Biomedical Sciences, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - John E Eriksson
- Cell Biology, Biosciences, Faculty of Science and Engineering, Åbo Akademi University, Turku FI-20520, Finland .,Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku FI-20520, Finland
| | - Yaming Jiu
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai 200031, China .,University of Chinese Academy of Sciences, Yuquan Road No. 19(A), Shijingshan District, Beijing 100049, China
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Tokorodani M, Ichikawa H, Yuasa K, Takahashi T, Hijikata T. SV40 microRNA miR-S1-3p Downregulates the Expression of T Antigens to Control Viral DNA Replication, and TNFα and IL-17F Expression. Biol Pharm Bull 2020; 43:1715-1728. [PMID: 33132317 DOI: 10.1248/bpb.b20-00415] [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: 11/22/2022]
Abstract
SV40-encoded microRNA (miRNA), miR-S1, downregulates the large and small T antigens (LTag and STag), which promote viral replication and cellular transformation, thereby presumably impairing LTag and STag functions essential for the viral life cycle. To explore the functional significance of miR-S1-mediated downregulation of LTag and STag as well as the functional roles of miR-S1, we evaluated viral DNA replication and proinflammatory cytokine induction in cells transfected with simian virus 40 (SV40) genome plasmid and its mutated form lacking miR-S1 expression. The SV40 genome encodes two mature miR-S1s, miR-S1-3p and miR-S1-5p, of which miR-S1-3p is the predominantly expressed form. MiR-S1-3p exerted strong repressive effects on a reporter containing full-length sequence complementarity, but only marginal effect on one harboring a sequence complementary to its seed sequence. Consistently, miR-S1-3p downregulated LTag and STag transcripts with complete sequence complementarity through miR-S1-3p-Ago2-mediated mRNA decay. Transfection of SV40 plasmid induced higher DNA replication and lower LTag and STag transcripts in most of the examined cells compared to that miR-S1-deficient SV40 plasmid. However, miR-S1 itself did not affect DNA replication without the downregulation of LTag transcripts. Both LTag and STag induced the expression of tumor necrosis factor α (TNFα) and interleukin (IL)-17F, which was slightly reduced by miR-S1 due to miR-S1-mediated downregulation of LTag and STag. Forced miR-S1 expression did not affect TNFα expression, but increased IL-17F expression. Overall, our findings suggest that miR-S1-3p is a latent modifier of LTag and STag functions, ensuring efficient viral replication and attenuating cytokine expression detrimental to the viral life cycle.
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Affiliation(s)
- Misa Tokorodani
- Department of Anatomy and Cell Biology, Research Institute of Pharmaceutical Science, Faculty of Pharmacy, Musashino University
| | - Hirona Ichikawa
- Department of Anatomy and Cell Biology, Research Institute of Pharmaceutical Science, Faculty of Pharmacy, Musashino University
| | - Katsutoshi Yuasa
- Department of Anatomy and Cell Biology, Research Institute of Pharmaceutical Science, Faculty of Pharmacy, Musashino University
| | - Tetsuyuki Takahashi
- Department of Anatomy and Cell Biology, Research Institute of Pharmaceutical Science, Faculty of Pharmacy, Musashino University
| | - Takao Hijikata
- Department of Anatomy and Cell Biology, Research Institute of Pharmaceutical Science, Faculty of Pharmacy, Musashino University
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43
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McGowan EM, Haddadi N, Nassif NT, Lin Y. Targeting the SphK-S1P-SIPR Pathway as a Potential Therapeutic Approach for COVID-19. Int J Mol Sci 2020; 21:ijms21197189. [PMID: 33003377 PMCID: PMC7583882 DOI: 10.3390/ijms21197189] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Revised: 09/25/2020] [Accepted: 09/25/2020] [Indexed: 02/07/2023] Open
Abstract
The world is currently experiencing the worst health pandemic since the Spanish flu in 1918-the COVID-19 pandemic-caused by the coronavirus severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). This pandemic is the world's third wake-up call this century. In 2003 and 2012, the world experienced two major coronavirus outbreaks, SARS-CoV-1 and Middle East Respiratory syndrome coronavirus (MERS-CoV), causing major respiratory tract infections. At present, there is neither a vaccine nor a cure for COVID-19. The severe COVID-19 symptoms of hyperinflammation, catastrophic damage to the vascular endothelium, thrombotic complications, septic shock, brain damage, acute disseminated encephalomyelitis (ADEM), and acute neurological and psychiatric complications are unprecedented. Many COVID-19 deaths result from the aftermath of hyperinflammatory complications, also referred to as the "cytokine storm syndrome", endotheliitus and blood clotting, all with the potential to cause multiorgan dysfunction. The sphingolipid rheostat plays integral roles in viral replication, activation/modulation of the immune response, and importantly in maintaining vasculature integrity, with sphingosine 1 phosphate (S1P) and its cognate receptors (SIPRs: G-protein-coupled receptors) being key factors in vascular protection against endotheliitus. Hence, modulation of sphingosine kinase (SphK), S1P, and the S1P receptor pathway may provide significant beneficial effects towards counteracting the life-threatening, acute, and chronic complications associated with SARS-CoV-2 infection. This review provides a comprehensive overview of SARS-CoV-2 infection and disease, prospective vaccines, and current treatments. We then discuss the evidence supporting the targeting of SphK/S1P and S1P receptors in the repertoire of COVID-19 therapies to control viral replication and alleviate the known and emerging acute and chronic symptoms of COVID-19. Three clinical trials using FDA-approved sphingolipid-based drugs being repurposed and evaluated to help in alleviating COVID-19 symptoms are discussed.
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Affiliation(s)
- Eileen M McGowan
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precise Therapy, Guangdong Pharmaceutical University, Guangzhou 510080, China;
- Central Laboratory, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
- School of Life Sciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia; (N.H.); (N.T.N.)
- Correspondence: ; Tel.: +61-405814048
| | - Nahal Haddadi
- School of Life Sciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia; (N.H.); (N.T.N.)
| | - Najah T. Nassif
- School of Life Sciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia; (N.H.); (N.T.N.)
| | - Yiguang Lin
- Guangdong Provincial Engineering Research Center for Esophageal Cancer Precise Therapy, Guangdong Pharmaceutical University, Guangzhou 510080, China;
- School of Life Sciences, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia; (N.H.); (N.T.N.)
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44
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Gori A, Leone F, Loffredo L, Cinicola BL, Brindisi G, De Castro G, Spalice A, Duse M, Zicari AM. COVID-19-Related Anosmia: The Olfactory Pathway Hypothesis and Early Intervention. Front Neurol 2020; 11:956. [PMID: 33013637 PMCID: PMC7511833 DOI: 10.3389/fneur.2020.00956] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Accepted: 07/23/2020] [Indexed: 12/17/2022] Open
Abstract
Anosmia is a well-described symptom of Corona Virus Disease 2019 (COVID-19). Several respiratory viruses are able to cause post-viral olfactory dysfunction, suggesting a sensorineural damage. Since the olfactory bulb is considered an immunological organ contributing to prevent the invasion of viruses, it could have a role in host defense. The inflammatory products locally released in COVID-19, leading to a local damage and causing olfactory loss, simultaneously may interfere with the viral spread into the central nervous system. In this context, olfactory receptors could play a role as an alternative way of SARS-CoV-2 entry into cells locally, in the central nervous system, and systemically. Differences in olfactory bulb due to sex and age may contribute to clarify the different susceptibility to infection and understand the role of age in transmission and disease severity. Finally, evaluation of the degree of functional impairment (grading), central/peripheral anosmia (localization), and the temporal course (evolution) may be useful tools to counteract COVID-19.
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Affiliation(s)
| | - Fabrizio Leone
- Department of Pediatrics, Sapienza University, Rome, Italy
| | - Lorenzo Loffredo
- Department of Internal Medicine and Medical Specialties, Sapienza University, Rome, Italy
| | | | | | | | - Alberto Spalice
- Child Neurology Division, Department of Pediatrics, Sapienza University of Rome, Rome, Italy
| | - Marzia Duse
- Department of Pediatrics, Sapienza University, Rome, Italy
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de Castro TBR, Canesso MCC, Boroni M, Chame DF, Souza DDL, de Toledo NE, Tahara EB, Pena SD, Machado CR, Chiari E, Macedo A, Franco GR. Differential Modulation of Mouse Heart Gene Expression by Infection With Two Trypanosoma cruzi Strains: A Transcriptome Analysis. Front Genet 2020; 11:1031. [PMID: 33088283 PMCID: PMC7495023 DOI: 10.3389/fgene.2020.01031] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/11/2020] [Indexed: 12/17/2022] Open
Abstract
The protozoan Trypanosoma cruzi (T. cruzi) is a well-adapted parasite to mammalian hosts and the pathogen of Chagas disease in humans. As both host and T. cruzi are highly genetically diverse, many variables come into play during infection, making disease outcomes difficult to predict. One important challenge in the field of Chagas disease research is determining the main factors leading to parasite establishment in the chronic stage in some organs, mainly the heart and/or digestive system. Our group previously showed that distinct strains of T. cruzi (JG and Col1.7G2) acquired differential tissue distribution in the chronic stage in dually infected BALB/c mice. To investigate changes in the host triggered by the two distinct T. cruzi strains, we assessed the gene expression profiles of BALB/c mouse hearts infected with either JG, Col1.7G2 or an equivalent mixture of both parasites during the initial phase of infection. This study demonstrates the clear differences in modulation of host gene expression by both parasites. Col1.7G2 strongly activated Th1-polarized immune signature genes, whereas JG caused only minor activation of the host immune response. Moreover, JG strongly reduced the expression of genes encoding ribosomal proteins and mitochondrial proteins related to the electron transport chain. Interestingly, the evaluation of gene expression in mice inoculated with a mixture of the parasites produced expression profiles with both up- and downregulated genes, indicating the coexistence of both parasite strains in the heart during the acute phase. This study suggests that different strains of T. cruzi may be distinguished by their efficiency in activating the immune system, modulating host energy metabolism and reactive oxygen species production and decreasing protein synthesis during early infection, which may be crucial for parasite persistence in specific organs.
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Affiliation(s)
| | | | - Mariana Boroni
- Laboratório de Bioinformática e Biologia Computacional, Centro de Pesquisas, Instituto Nacional de Câncer, Rio de Janeiro, Brazil
| | - Daniela Ferreira Chame
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Daniela de Laet Souza
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Nayara Evelin de Toledo
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Eric Birelli Tahara
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Sergio Danilo Pena
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Carlos Renato Machado
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Egler Chiari
- Departamento de Parasitologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Andrea Macedo
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
| | - Gloria Regina Franco
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, UFMG, Belo Horizonte, Brazil
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46
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Elrefaey AME, Abdelnabi R, Rosales Rosas AL, Wang L, Basu S, Delang L. Understanding the Mechanisms Underlying Host Restriction of Insect-Specific Viruses. Viruses 2020; 12:E964. [PMID: 32878245 PMCID: PMC7552076 DOI: 10.3390/v12090964] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Revised: 08/26/2020] [Accepted: 08/27/2020] [Indexed: 12/13/2022] Open
Abstract
Arthropod-borne viruses contribute significantly to global mortality and morbidity in humans and animals. These viruses are mainly transmitted between susceptible vertebrate hosts by hematophagous arthropod vectors, especially mosquitoes. Recently, there has been substantial attention for a novel group of viruses, referred to as insect-specific viruses (ISVs) which are exclusively maintained in mosquito populations. Recent discoveries of novel insect-specific viruses over the past years generated a great interest not only in their potential use as vaccine and diagnostic platforms but also as novel biological control agents due to their ability to modulate arbovirus transmission. While arboviruses infect both vertebrate and invertebrate hosts, the replication of insect-specific viruses is restricted in vertebrates at multiple stages of virus replication. The vertebrate restriction factors include the genetic elements of ISVs (structural and non-structural genes and the untranslated terminal regions), vertebrate host factors (agonists and antagonists), and the temperature-dependent microenvironment. A better understanding of these bottlenecks is thus warranted. In this review, we explore these factors and the complex interplay between ISVs and their hosts contributing to this host restriction phenomenon.
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Affiliation(s)
| | - Rana Abdelnabi
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, 3000 Leuven, Belgium; (R.A.); (A.L.R.R.); (L.W.)
| | - Ana Lucia Rosales Rosas
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, 3000 Leuven, Belgium; (R.A.); (A.L.R.R.); (L.W.)
| | - Lanjiao Wang
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, 3000 Leuven, Belgium; (R.A.); (A.L.R.R.); (L.W.)
| | - Sanjay Basu
- The Pirbright Institute, Pirbright, Woking GU24 0NF, UK;
| | - Leen Delang
- KU Leuven, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, 3000 Leuven, Belgium; (R.A.); (A.L.R.R.); (L.W.)
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Alomari SO, Abou-Mrad Z, Bydon A. COVID-19 and the central nervous system. Clin Neurol Neurosurg 2020; 198:106116. [PMID: 32828027 PMCID: PMC7402113 DOI: 10.1016/j.clineuro.2020.106116] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 07/13/2020] [Accepted: 07/27/2020] [Indexed: 01/08/2023]
Abstract
Awareness of atypical clinical presentation of COVID patients. Continued sharing and publishing of case series to better understand symptoms, signs, and prognosis of patients with COVID. Continued studies needed to fully undertstand the long term consequences of COVID on the neurological system.
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Affiliation(s)
- Safwan O Alomari
- Neurosurgery Department, American University of Beirut Medical Center, Beirut, Lebanon
| | - Zaki Abou-Mrad
- Neurosurgery Department, American University of Beirut Medical Center, Beirut, Lebanon
| | - Ali Bydon
- Neurosurgery Department, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Chang FY, Chen HC, Chen PJ, Ho MS, Hsieh SL, Lin JC, Liu FT, Sytwu HK. Immunologic aspects of characteristics, diagnosis, and treatment of coronavirus disease 2019 (COVID-19). J Biomed Sci 2020; 27:72. [PMID: 32498686 PMCID: PMC7270518 DOI: 10.1186/s12929-020-00663-w] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 04/28/2020] [Indexed: 12/21/2022] Open
Abstract
On March 11, 2020, the World Health Organization declared the worldwide spread of the infectious disease COVID-19, caused by a new strain of coronavirus, SARS-CoV-2, as a pandemic. Like in all other infectious diseases, the host immune system plays a key role in our defense against SARS-CoV-2 infection. However, viruses are able to evade the immune attack and proliferate and, in susceptible individuals, cause severe inflammatory response known as cytokine storm, particularly in the lungs. The advancement in our understanding of the mechanisms underlying the host immune responses promises to facilitate the development of approaches for prevention or treatment of diseases. Components of immune system, such as antibodies, can also be used to develop sensitive and specific diagnostic methods as well as novel therapeutic agents. In this review, we summarize our knowledge about how the host mounts immune responses to infection by SARS-CoV-2. We also describe the diagnostic methods being used for COVID-19 identification and summarize the current status of various therapeutic strategies, including vaccination, being considered for treatment of the disease.
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Affiliation(s)
- Feng-Yee Chang
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Hsiang-Cheng Chen
- Division of Rheumatology, Immunology, and Allergy, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Pei-Jer Chen
- Division of Gastroenterology, Department of Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Mei-Shang Ho
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Taipei, Taiwan
| | | | - Jung-Chung Lin
- Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, 128 Academia Road, Section 2, Taipei, Taiwan.
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
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Al-Rawi NN, Anwer BA, Al-Rawi NH, Uthman AT, Ahmed IS. Magnetism in drug delivery: The marvels of iron oxides and substituted ferrites nanoparticles. Saudi Pharm J 2020; 28:876-887. [PMID: 32647490 PMCID: PMC7335713 DOI: 10.1016/j.jsps.2020.05.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 05/06/2020] [Indexed: 02/08/2023] Open
Abstract
The conventional utilization of drugs is characterized by poor biodistribution, limited effectiveness, and lack of selectivity, besides undesirable side effects on multiple body systems. Seeking a DDS with a modifiable skeleton to customize drug targeting is of extreme importance for successful therapy of many diseases. Among the different synthesis strategies for MNPs, chemical methods are the most common, and on top of the pyramid, is the co-precipitation method. MNPs have customizable properties, where applying a hydrophilic coating protects the particles from opsonization and human-immunity recognition, which increases their circulation time. The route MNPs usually follow in the body starts with magnetic guidance to the target, immobilization for drug release, and finally clearance. Interestingly, multifunctional nanocomplexes with conjugated SPIONS and PEI presented enhanced transfection while decreased PEI toxicity. Theranostic applications of MNPs are limitless, whether it is a dual function of diagnosis and therapy simultaneously, or a multimodal imaging system. IONPs participate in the production of oxidative stress that leads to cell damage. Metal ferrite NPs can overcome the drawbacks of IONPs provided that the substituting metal in use is less toxic. Metal ferrite NPs present unique properties of high saturation magnetization, enhanced encapsulation efficacy, as well as enzyme-mimetic activities. Magnesium ferrite NPs (MFNPs) were found to exhibit greater magnetic heating capacity compared to other ferrites. MFNPs also show safe metabolism and high biocompatibility, making them a promising system for cancer applications.
In modern drug delivery, seeking a drug delivery system (DDS) with a modifiable skeleton for proper targeting of loaded actives to specific sites in the body is of extreme importance for a successful therapy. Magnetically guided nanosystems, where particles such as iron oxides are guided to specific regions using an external magnetic field, can provide magnetic resonance imaging (MRI) while delivering a therapeutic payload at the same time, which represents a breakthrough in disease therapy and make MNPs excellent candidates for several biomedical applications. In this review, magnetic nanoparticles (MNPs) along with their distinguishable properties, including pharmacokinetics and toxicity, especially in cancer therapy will be discussed. The potential perspective of using other elements within the MNP system to reduce toxicity, improve pharmacokinetics, increase the magnetization ability, improve physical targeting precision and/or widen the scope of its biomedical application will be also discussed.
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Affiliation(s)
- Noor Natheer Al-Rawi
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Basma Azad Anwer
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
| | - Natheer Hashim Al-Rawi
- Department of Oral and Craniofacial Health Sciences, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Asmaa Tahseen Uthman
- Department of Diagnostic and Surgical Dental Sciences, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates
| | - Iman Saad Ahmed
- Department of Pharmaceutics and Pharmaceutical Technology, College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates
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50
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Naturally Occurring and Engineered Alphaviruses Sensitive to Double-Stranded-RNA-Activated Protein Kinase Show Restricted Translation in Mammalian Cells, Increased Sensitivity to Interferon, and Marked Oncotropism. J Virol 2020; 94:JVI.01630-19. [PMID: 31723025 DOI: 10.1128/jvi.01630-19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 10/24/2019] [Indexed: 02/07/2023] Open
Abstract
Alphaviruses are insect-borne viruses that alternate between replication in mosquitoes and vertebrate species. Adaptation of some alphaviruses to vertebrate hosts has involved the acquisition of an RNA structure (downstream loop [DLP]) in viral subgenomic mRNAs that confers translational resistance to protein kinase (PKR)-mediated eIF2α phosphorylation. Here, we found that, in addition to promoting eIF2-independent translation of viral subgenomic mRNAs, presence of the DLP structure also increased the resistance of alphavirus to type I interferon (IFN). Aura virus (AURAV), an ecologically isolated relative of Sindbis virus (SV) that is poorly adapted to replication in vertebrate cells, displayed a nonfunctional DLP structure and dramatic sensitivity to type I IFN. Our data suggest that an increased resistance to IFN emerged during translational adaptation of alphavirus mRNA to vertebrate hosts, reinforcing the role that double-stranded RNA (dsRNA)-activated protein kinase (PKR) plays as both a constitutive and IFN-induced antiviral effector. Interestingly, a mutant SV lacking the DLP structure (SV-ΔDLP) and AURAV both showed a marked oncotropism for certain tumor cell lines that have defects in PKR expression and/or activation. AURAV selectively replicated in and killed some cell lines derived from human hepatocarcinoma (HCC) that lacked PKR response to infection or poly(I·C) transfection. The oncolytic activities of SV-ΔDLP and AURAV were also confirmed using tumor xenografts in mice, showing tumor regression activities comparable to wild-type SV. Our data show that translation of alphavirus subgenomic mRNAs plays a central role in IFN susceptibility and cell tropism, suggesting an unanticipated oncolytic potential that some naive arboviruses may have in virotherapy.IMPORTANCE Interferons (IFNs) induce the expression of a number of antiviral genes that protect the cells of vertebrates against viruses and other microbes. The susceptibility of cells to viruses greatly depends on the level and activity of these antiviral effectors but also on the ability of viruses to counteract this antiviral response. Here, we found that the level of one of the main IFN effectors in the cell, the dsRNA-activated protein kinase (PKR), greatly determines the permissiveness of cells to alphaviruses that lack mechanisms to counteract its activation. These naive viruses also showed a hypersensitivity to IFN, suggesting that acquisition of IFN resistance (even partial) has probably been involved in expanding the host range of alphaviruses in the past. Interestingly, some of these naive viruses showed a marked oncotropism for some tumor cell lines derived from human hepatocarcinoma (HCC), opening the possibility of their use in oncolytic therapy to treat human tumors.
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