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Seo Y, Zhou A, Nguyen TH, Wei N. Yeast Surface-Displayed Quenchbody as a Novel Whole-Cell Biosensor for One-Step Detection of Influenza A (H1N1) Virus. ACS Synth Biol 2024. [PMID: 39256183 DOI: 10.1021/acssynbio.4c00317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
Timely surveillance of airborne pathogens is essential to preventing the spread of infectious diseases and safeguard human health. Methods for sensitive, efficient, and cost-effective detection of airborne viruses are needed. With advances in synthetic biology, whole-cell biosensors have emerged as promising platforms for environmental monitoring and medical diagnostics. However, the current design paradigm of whole-cell biosensors is mostly based on intracellular detection of analytes that can transport across the cell membrane, which presents a critical challenge for viral pathogens and large biomolecules. To address this challenge, we developed a new type of whole-cell biosensor by expressing and displaying VHH-based quenchbody (Q-body) on the surface of the yeast Saccharomyces cerevisiae for simple one-step detection of influenza A (H1N1) virus. Seventeen VHH antibody fragments targeting the hemagglutinin protein H1N1-HA were displayed on the yeast cells and screened for the H1N1-HA binding affinity. The functionally displayed VHHs were selected to create surface-displayed Q-body biosensors. The surface-displayed Q-body exhibiting the highest quenching and dequenching efficiency was identified. The biosensor quantitatively detected H1N1-HA in a range from 0.5 to 16 μg/mL, with a half-maximal concentration of 2.60 μg/mL. The biosensor exhibited high specificity for H1N1-HA over other hemagglutinin proteins from various influenza A virus subtypes. Moreover, the biosensor succeeded in detecting the H1N1 virus at concentrations from 2.4 × 104 to 1.5 × 107 PFU/mL. The results from this study demonstrated a new whole-cell biosensor design that circumvents the need for transport of analytes into biosensor cells, enabling efficient detection of the target virus particles.
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Affiliation(s)
- Yoonjoo Seo
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3221 Newmark Civil Engineering Laboratory, Urbana, Illinois 61801, United States
| | - Aijia Zhou
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3221 Newmark Civil Engineering Laboratory, Urbana, Illinois 61801, United States
| | - Thanh H Nguyen
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3221 Newmark Civil Engineering Laboratory, Urbana, Illinois 61801, United States
| | - Na Wei
- Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3221 Newmark Civil Engineering Laboratory, Urbana, Illinois 61801, United States
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2
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Patil V, Yadagiri G, Bugybayeva D, Schrock J, Suresh R, Hernandez-Franco JF, HogenEsch H, Renukaradhya GJ. Characterization of a novel functional porcine CD3 +CD4 lowCD8α +CD8β + T-helper/memory lymphocyte subset in the respiratory tract lymphoid tissues of swine influenza A virus vaccinated pigs. Vet Immunol Immunopathol 2024; 274:110785. [PMID: 38861830 DOI: 10.1016/j.vetimm.2024.110785] [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: 01/02/2024] [Revised: 05/09/2024] [Accepted: 05/17/2024] [Indexed: 06/13/2024]
Abstract
The pig is emerging as a physiologically relevant biomedical large animal model. Delineating the functional roles of porcine adaptive T-lymphocyte subsets in health and disease is of critical significance, which facilitates mechanistic understanding of antigen-specific immune memory responses. We identified a novel T-helper/memory lymphocyte subset in pigs and performed phenotypic and functional characterization of these cells under steady state and following vaccination and infection with swine influenza A virus (SwIAV). A novel subset of CD3+CD4lowCD8α+CD8β+ memory T-helper cells was identified in the blood of healthy adult pigs under homeostatic conditions. To understand the possible functional role/s of these cells, we characterized the antigen-specific T cell memory responses by multi-color flow cytometry in pigs vaccinated with a whole inactivated SwIAV vaccine, formulated with a phytoglycogen nanoparticle/STING agonist (ADU-S100) adjuvant (NanoS100-SwIAV). As a control, a commercial SwIAV vaccine was included in a heterologous challenge infection trial. The frequencies of antigen-specific IL-17A and IFNγ secreting CD3+CD4lowCD8α+CD8β+ memory T-helper cells were significantly increased in the lung draining tracheobronchial lymph nodes (TBLN) of intradermal, intramuscular and intranasal inoculated NanoS100-SwIAV vaccine and commercial vaccine administered animals. While the frequencies of antigen-specific, IFNγ secreting CD3+CD4lowCD8α+CD8β+ memory T-helper cells were significantly enhanced in the blood of intranasal and intramuscular vaccinates. These observations suggest that the CD3+CD4lowCD8α+CD8β+ T-helper/memory cells in pigs may have a protective and/or regulatory role/s in immune responses against SwIAV infection. These observations highlight the heterogeneity and plasticity of porcine CD4+ T-helper/memory cells in response to respiratory viral infection in pigs. Comprehensive systems immunology studies are needed to further decipher the cellular lineages and functional role/s of this porcine T helper/memory cell subset.
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Affiliation(s)
- V Patil
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - G Yadagiri
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - D Bugybayeva
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - J Schrock
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - R Suresh
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA
| | - J F Hernandez-Franco
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - H HogenEsch
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
| | - G J Renukaradhya
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA.
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3
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Yin Y, Zeng Z, Wei S, Shen Z, Cong Z, Zhu X. Using the sympathetic system, beta blockers and alpha-2 agonists, to address acute respiratory distress syndrome. Int Immunopharmacol 2024; 139:112670. [PMID: 39018694 DOI: 10.1016/j.intimp.2024.112670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 07/06/2024] [Accepted: 07/08/2024] [Indexed: 07/19/2024]
Abstract
Acute Respiratory Distress Syndrome (ARDS) manifests as an acute inflammatory lung injury characterized by persistent hypoxemia, featuring a swift onset, high mortality, and predominantly supportive care as the current therapeutic approach, while effective treatments remain an area of active investigation. Adrenergic receptors (AR) play a pivotal role as stress hormone receptors, extensively participating in various inflammatory processes by initiating downstream signaling pathways. Advancements in molecular biology and pharmacology continually unveil the physiological significance of distinct AR subtypes. Interventions targeting these subtypes have the potential to induce specific alterations in cellular and organismal functions, presenting a promising avenue as a therapeutic target for managing ARDS. This article elucidates the pathogenesis of ARDS and the basic structure and function of AR. It also explores the relationship between AR and ARDS from the perspective of different AR subtypes, aiming to provide new insights for the improvement of ARDS.
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Affiliation(s)
- Yiyuan Yin
- Department of Intensive Care Unit, Peking University Third Hospital, Beijing, China
| | - Zhaojin Zeng
- Department of Intensive Care Unit, Peking University Third Hospital, Beijing, China
| | - Senhao Wei
- Department of Intensive Care Unit, Peking University Third Hospital, Beijing, China
| | - Ziyuan Shen
- Department of Anaesthesiology, Peking University Third Hospital, Beijing, China
| | - Zhukai Cong
- Department of Anaesthesiology, Peking University Third Hospital, Beijing, China.
| | - Xi Zhu
- Department of Intensive Care Unit, Peking University Third Hospital, Beijing, China.
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4
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Wang Q, Wu S, Shuai J, Li Y, Fu X, Zhang M, Yu X, Ye Z, Ma B. Dual Gene Detection of H5N1 Avian Influenza Virus Based on Dual RT-RPA. Molecules 2024; 29:2801. [PMID: 38930866 PMCID: PMC11206350 DOI: 10.3390/molecules29122801] [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: 04/16/2024] [Revised: 06/07/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024] Open
Abstract
The H5N1 avian influenza virus seriously affects the health of poultry and humans. Once infected, the mortality rate is very high. Therefore, accurate and timely detection of the H5N1 avian influenza virus is beneficial for controlling its spread. This article establishes a dual gene detection method based on dual RPA for simultaneously detecting the HA and M2 genes of H5N1 avian influenza virus, for the detection of H5N1 avian influenza virus. Design specific primers for the conserved regions of the HA and M2 genes. The sensitivity of the dual RT-RPA detection method for HA and M2 genes is 1 × 10-7 ng/μL. The optimal primer ratio is 1:1, the optimal reaction temperature is 40 °C, and the optimal reaction time is 20 min. Dual RT-RPA was used to detect 72 samples, and compared with RT-qPCR detection, the Kappa value was 1 (p value < 0.05), and the clinical sample detection sensitivity and specificity were both 100%. The dual RT-RPA method is used for the first time to simultaneously detect two genes of the H5N1 avian influenza virus. As an accurate and convenient diagnostic tool, it can be used to diagnose the H5N1 avian influenza virus.
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Affiliation(s)
- Qian Wang
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Shiwen Wu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Jiangbing Shuai
- Zhejiang Institute of Inspection and Quarantine Science and Technology, Hangzhou 311241, China;
| | - Ye Li
- Zhejiang University of Science and Technology, Hangzhou 310023, China;
| | - Xianshu Fu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Mingzhou Zhang
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Xiaoping Yu
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Zihong Ye
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
| | - Biao Ma
- College of Life Sciences, China Jiliang University, Hangzhou 310018, China; (Q.W.); (S.W.); (M.Z.); (X.Y.); (Z.Y.); (B.M.)
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5
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Thai QM, Nguyen TH, Phung HTT, Pham MQ, Pham NKT, Horng JT, Ngo ST. MedChemExpress compounds prevent neuraminidase N1 via physics- and knowledge-based methods. RSC Adv 2024; 14:18950-18956. [PMID: 38873542 PMCID: PMC11167619 DOI: 10.1039/d4ra02661f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Accepted: 06/07/2024] [Indexed: 06/15/2024] Open
Abstract
Influenza A viruses spread out worldwide, causing several global concerns. Hence, discovering neuraminidase inhibitors to prevent the influenza A virus is of great interest. In this work, a machine learning model was employed to evaluate the ligand-binding affinity of ca. 10 000 compounds from the MedChemExpress (MCE) database for inhibiting neuraminidase. Atomistic simulations, including molecular docking and molecular dynamics simulations, then confirmed the ligand-binding affinity. Furthermore, we clarified the physical insights into the binding process of ligands to neuraminidase. It was found that five compounds, including micronomicin, didesmethyl cariprazine, argatroban, Kgp-IN-1, and AY 9944, are able to inhibit neuraminidase N1 of the influenza A virus. Ten residues, including Glu119, Asp151, Arg152, Trp179, Gln228, Glu277, Glu278, Arg293, Asn295, and Tyr402, may be very important in controlling the ligand-binding process to N1.
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Affiliation(s)
- Quynh Mai Thai
- Laboratory of Biophysics, Institute for Advanced Study in Technology, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Pharmacy, Ton Duc Thang University Ho Chi Minh City Vietnam
| | - Trung Hai Nguyen
- Laboratory of Biophysics, Institute for Advanced Study in Technology, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Pharmacy, Ton Duc Thang University Ho Chi Minh City Vietnam
| | | | - Minh Quan Pham
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology Hanoi Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology Hanoi Vietnam
| | - Nguyen Kim Tuyen Pham
- Faculty of Environment, Sai Gon University 273 An Duong Vuong, Ward 3, District 5 Ho Chi Minh City Vietnam
| | - Jim-Tong Horng
- Department of Biochemistry and Molecular Biology, College of Medicine, Chang Gung University Kweishan Taoyuan Taiwan
| | - Son Tung Ngo
- Laboratory of Biophysics, Institute for Advanced Study in Technology, Ton Duc Thang University Ho Chi Minh City Vietnam
- Faculty of Pharmacy, Ton Duc Thang University Ho Chi Minh City Vietnam
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Scarpa F, Sernicola L, Farcomeni S, Ciccozzi A, Sanna D, Casu M, Vitale M, Cicenia A, Giovanetti M, Romano C, Branda F, Ciccozzi M, Borsetti A. Phylodynamic and Evolution of the Hemagglutinin (HA) and Neuraminidase (NA) Genes of Influenza A(H1N1) pdm09 Viruses Circulating in the 2009 and 2023 Seasons in Italy. Pathogens 2024; 13:334. [PMID: 38668289 PMCID: PMC11054071 DOI: 10.3390/pathogens13040334] [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: 03/29/2024] [Revised: 04/12/2024] [Accepted: 04/15/2024] [Indexed: 04/29/2024] Open
Abstract
The influenza A(H1N1) pdm09 virus, which emerged in 2009, has been circulating seasonally since then. In this study, we conducted a comprehensive genome-based investigation to gain a detailed understanding of the genetic and evolutionary characteristics of the hemagglutinin (HA) and neuraminidase (NA) surface proteins of A/H1N1pdm09 strains circulating in Italy over a fourteen-year period from 2009 to 2023 in relation to global strains. Phylogenetic analysis revealed rapid transmission and diversification of viral variants during the early pandemic that clustered in clade 6B.1. In contrast, limited genetic diversity was observed during the 2023 season, probably due to the genetic drift, which provides the virus with a constant adaptability to the host; furthermore, all isolates were split into two main groups representing two clades, i.e., 6B.1A.5a.2a and its descendant 6B.1A.5a.2a.1. The HA gene showed a faster rate of evolution compared to the NA gene. Using FUBAR, we identified positively selected sites 41 and 177 for HA and 248, 286, and 455 for NA in 2009, as well as sites 22, 123, and 513 for HA and 339 for NA in 2023, all of which may be important sites related to the host immune response. Changes in glycosylation acquisition/loss at prominent sites, i.e., 177 in HA and 248 in NA, should be considered as a predictive tool for early warning signs of emerging pandemics, and for vaccine and drug development.
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Affiliation(s)
- Fabio Scarpa
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (A.C.); (D.S.)
| | - Leonardo Sernicola
- National HIV/AIDS Research Center (CNAIDS), Istituto Superiore di Sanità, 00162 Rome, Italy; (L.S.); (S.F.)
| | - Stefania Farcomeni
- National HIV/AIDS Research Center (CNAIDS), Istituto Superiore di Sanità, 00162 Rome, Italy; (L.S.); (S.F.)
| | - Alessandra Ciccozzi
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (A.C.); (D.S.)
| | - Daria Sanna
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy; (A.C.); (D.S.)
| | - Marco Casu
- Department of Veterinary Medicine, University of Sassari, 07100 Sassari, Italy;
| | - Marco Vitale
- Laboratorio di Biologia Molecolare—Fondazione Università Niccolò Cusano, 00166 Rome, Italy; (M.V.); (A.C.)
| | - Alessia Cicenia
- Laboratorio di Biologia Molecolare—Fondazione Università Niccolò Cusano, 00166 Rome, Italy; (M.V.); (A.C.)
| | - Marta Giovanetti
- Department of Sciences and Technologies for Sustainable Development and One Health, Universita Campus Bio-Medico di Roma, 00128 Rome, Italy;
- Instituto René Rachou, Fundação Oswaldo Cruz, Belo Horizonte 30190-009, MG, Brazil
- Climate Amplified Diseases and Epidemics (CLIMADE), Brasilia 70070-130, DF, Brazil
| | - Chiara Romano
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (C.R.); (F.B.); (M.C.)
| | - Francesco Branda
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (C.R.); (F.B.); (M.C.)
| | - Massimo Ciccozzi
- Unit of Medical Statistics and Molecular Epidemiology, University Campus Bio-Medico of Rome, 00128 Rome, Italy; (C.R.); (F.B.); (M.C.)
| | - Alessandra Borsetti
- National HIV/AIDS Research Center (CNAIDS), Istituto Superiore di Sanità, 00162 Rome, Italy; (L.S.); (S.F.)
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Tran T, Xie S. Mitigating Wildlife Spillover in the Clinical Setting: How Physicians and Veterinarians Can Help Prevent Future Disease Outbreaks. AJPM FOCUS 2024; 3:100193. [PMID: 38379958 PMCID: PMC10876620 DOI: 10.1016/j.focus.2024.100193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Introduction The transmission of pathogens from wildlife to humans is a major global health threat that has been highlighted by the proposed origins of the COVID-19 pandemic. Numerous barriers impede pathogen spillover events from ensuing widespread human transmission, but human activity has accelerated the frequency of spillovers and subsequent disease outbreaks, in part through a booming wildlife trade whose impacts on health are not well understood. Methods A literature review was conducted to examine the risk that the wildlife trade poses to public health and the degree to which these risks are recognized and addressed in clinical practice and medical and veterinary education. Results The illicit aspects of the wildlife trade challenge efforts to understand its impacts on health. The U.S. and Europe play a leading role in the global wildlife trade that often goes unacknowledged. In particular, the consumption of wild meat and ownership of exotic pets poses public health risks. The potential role of clinicians is underutilized, both in the clinical setting and in clinical education. Discussion Physicians and veterinarians have the unique opportunity to utilize their clinical roles to address these knowledge gaps and mitigate future outbreaks. We outline a multifaceted approach that includes increasing clinical knowledge about the ecology of zoonotic diseases, leveraging opportunities for mitigation during patient/client-clinician interactions, and incorporating One Health core competencies into medical and veterinary school curricula.
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Affiliation(s)
- Tam Tran
- Department of Biology, Penn Arts & Sciences, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Sherrie Xie
- Department of Biostatistics, Epidemiology & Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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Padykula I, Damodaran L, Young KT, Krunkosky M, Griffin EF, North JF, Neasham PJ, Pliasas VC, Siepker CL, Stanton JB, Howerth EW, Bahl J, Kyriakis CS, Tompkins SM. Pandemic Risk Assessment for Swine Influenza A Virus in Comparative In Vitro and In Vivo Models. Viruses 2024; 16:548. [PMID: 38675891 PMCID: PMC11053818 DOI: 10.3390/v16040548] [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: 02/29/2024] [Revised: 03/17/2024] [Accepted: 03/18/2024] [Indexed: 04/28/2024] Open
Abstract
Swine influenza A viruses pose a public health concern as novel and circulating strains occasionally spill over into human hosts, with the potential to cause disease. Crucial to preempting these events is the use of a threat assessment framework for human populations. However, established guidelines do not specify which animal models or in vitro substrates should be used. We completed an assessment of a contemporary swine influenza isolate, A/swine/GA/A27480/2019 (H1N2), using animal models and human cell substrates. Infection studies in vivo revealed high replicative ability and a pathogenic phenotype in the swine host, with replication corresponding to a complementary study performed in swine primary respiratory epithelial cells. However, replication was limited in human primary cell substrates. This contrasted with our findings in the Calu-3 cell line, which demonstrated a replication profile on par with the 2009 pandemic H1N1 virus. These data suggest that the selection of models is important for meaningful risk assessment.
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Affiliation(s)
- Ian Padykula
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
| | - Lambodhar Damodaran
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
| | - Kelsey T. Young
- Department of Pathology, University of Georgia, Athens, GA 30602, USA
| | - Madelyn Krunkosky
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
| | - Emily F. Griffin
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
| | - James F. North
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
- Department of Pathobiology, Auburn University, Auburn, AL 36849, USA
| | - Peter J. Neasham
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
- Department of Pathobiology, Auburn University, Auburn, AL 36849, USA
| | - Vasilis C. Pliasas
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
- Department of Pathobiology, Auburn University, Auburn, AL 36849, USA
| | - Chris L. Siepker
- Department of Pathology, University of Georgia, Athens, GA 30602, USA
| | - James B. Stanton
- Department of Pathology, University of Georgia, Athens, GA 30602, USA
| | | | - Justin Bahl
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
| | - Constantinos S. Kyriakis
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
- Department of Pathobiology, Auburn University, Auburn, AL 36849, USA
| | - Stephen Mark Tompkins
- Center for Vaccines and Immunology, University of Georgia, Athens, GA 30602, USA
- Department of Infectious Diseases, University of Georgia, Athens, GA 30602, USA
- Emory-UGA Centers of Excellence for Influenza Research and Surveillance (CEIRS), Athens, GA 30602, USA
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9
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Wang W, Srivastava S, Garg A, Xiao C, Hawks S, Pan J, Duggal N, Isaacman-VanWertz G, Zhou W, Marr LC, Vikesland PJ. Digital Surface-Enhanced Raman Spectroscopy-Lateral Flow Test Dipstick: Ultrasensitive, Rapid Virus Quantification in Environmental Dust. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:4926-4936. [PMID: 38452107 PMCID: PMC10956432 DOI: 10.1021/acs.est.3c10311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/15/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
This study introduces a novel surface-enhanced Raman spectroscopy (SERS)-based lateral flow test (LFT) dipstick that integrates digital analysis for highly sensitive and rapid viral quantification. The SERS-LFT dipsticks, incorporating gold-silver core-shell nanoparticle probes, enable pixel-based digital analysis of large-area SERS scans. Such an approach enables ultralow-level detection of viruses that readily distinguishes positive signals from background noise at the pixel level. The developed digital SERS-LFTs demonstrate limits of detection (LODs) of 180 fg for SARS-CoV-2 spike protein, 120 fg for nucleocapsid protein, and 7 plaque forming units for intact virus, all within <30 min. Importantly, digital SERS-LFT methods maintain their robustness and their LODs in the presence of indoor dust, thus underscoring their potential for accurate and reliable virus diagnosis and quantification in real-world environmental settings.
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Affiliation(s)
- Wei Wang
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia
Tech Institute of Critical Technology and Applied Science (ICTAS)
Sustainable Nanotechnology Center (VTSuN), Blacksburg, Virginia 24061, United States
| | - Sonali Srivastava
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia
Tech Institute of Critical Technology and Applied Science (ICTAS)
Sustainable Nanotechnology Center (VTSuN), Blacksburg, Virginia 24061, United States
| | - Aditya Garg
- Department
of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Chuan Xiao
- Department
of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Seth Hawks
- Department
of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Jin Pan
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Nisha Duggal
- Department
of Biomedical Sciences and Pathobiology, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Gabriel Isaacman-VanWertz
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Wei Zhou
- Department
of Electrical and Computer Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
| | - Linsey C. Marr
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia
Tech Institute of Critical Technology and Applied Science (ICTAS)
Sustainable Nanotechnology Center (VTSuN), Blacksburg, Virginia 24061, United States
| | - Peter J. Vikesland
- Department
of Civil and Environmental Engineering, Virginia Tech, Blacksburg, Virginia 24061, United States
- Virginia
Tech Institute of Critical Technology and Applied Science (ICTAS)
Sustainable Nanotechnology Center (VTSuN), Blacksburg, Virginia 24061, United States
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10
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Heider A, Wedde M, Weinheimer V, Döllinger S, Monazahian M, Dürrwald R, Wolff T, Schweiger B. Characteristics of two zoonotic swine influenza A(H1N1) viruses isolated in Germany from diseased patients. Int J Med Microbiol 2024; 314:151609. [PMID: 38286065 DOI: 10.1016/j.ijmm.2024.151609] [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: 12/14/2023] [Revised: 01/16/2024] [Accepted: 01/22/2024] [Indexed: 01/31/2024] Open
Abstract
Interspecies transmission of influenza A viruses (IAV) from pigs to humans is a concerning event as porcine IAV represent a reservoir of potentially pandemic IAV. We conducted a comprehensive analysis of two porcine A(H1N1)v viruses isolated from human cases by evaluating their genetic, antigenic and virological characteristics. The HA genes of those human isolates belonged to clades 1C.2.1 and 1C.2.2, respectively, of the A(H1N1) Eurasian avian-like swine influenza lineage. Antigenic profiling revealed substantial cross-reactivity between the two zoonotic H1N1 viruses and human A(H1N1)pdm09 virus and some swine viruses, but did not reveal cross-reactivity to H1N2 and earlier human seasonal A(H1N1) viruses. The solid-phase direct receptor binding assay analysis of both A(H1N1)v showed a predominant binding to α2-6-sialylated glycans similar to human-adapted IAV. Investigation of the replicative potential revealed that both A(H1N1)v viruses grow in human bronchial epithelial cells to similar high titers as the human A(H1N1)pdm09 virus. Cytokine induction was studied in human alveolar epithelial cells A549 and showed that both swine viruses isolated from human cases induced higher amounts of type I and type III IFN, as well as IL6 compared to a seasonal A(H1N1) or a A(H1N1)pdm09 virus. In summary, we demonstrate a remarkable adaptation of both zoonotic viruses to propagate in human cells. Our data emphasize the needs for continuous monitoring of people and regions at increased risk of such trans-species transmissions, as well as systematic studies to quantify the frequency of these events and to identify viral molecular determinants enhancing the zoonotic potential of porcine IAV.
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Affiliation(s)
- Alla Heider
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany.
| | - Marianne Wedde
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
| | - Viola Weinheimer
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
| | - Stephanie Döllinger
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
| | | | - Ralf Dürrwald
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
| | - Thorsten Wolff
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
| | - Brunhilde Schweiger
- Division of Influenza Viruses and Other Respiratory Viruses, National Reference Centre for Influenza, Robert Koch-Institute, Seestrasse 10, Berlin 13353, Germany
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11
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Zahedipour F, Zahedipour F, Zamani P, Jaafari MR, Sahebkar A. Harnessing CRISPR technology for viral therapeutics and vaccines: from preclinical studies to clinical applications. Virus Res 2024; 341:199314. [PMID: 38211734 PMCID: PMC10825633 DOI: 10.1016/j.virusres.2024.199314] [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: 12/09/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/13/2024]
Abstract
The CRISPR/Cas system, identified as a type of bacterial adaptive immune system, have attracted significant attention due to its remarkable ability to precisely detect and eliminate foreign genetic material and nucleic acids. Expanding upon these inherent capabilities, recent investigations have unveiled the potential of reprogrammed CRISPR/Cas 9, 12, and 13 systems for treating viral infections associated with human diseases, specifically targeting DNA and RNA viruses, respectively. Of particular interest is the RNA virus responsible for the recent global outbreak of coronavirus disease 2019 (COVID-19), which presents a substantial public health risk, coupled with limited efficacy of current prophylactic and therapeutic techniques. In this regard, the utilization of CRISPR/Cas technology offers a promising gene editing approach to overcome the limitations of conventional methods in managing viral infections. This comprehensive review provides an overview of the latest CRISPR/Cas-based therapeutic and vaccine strategies employed to combat human viral infections. Additionally, we discuss significant challenges and offer insights into the future prospects of this cutting-edge gene editing technology.
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Affiliation(s)
- Farzaneh Zahedipour
- Microbiology Department, Medical Sciences Branch, Islamic Azad University (IAU), Tehran, Iran
| | - Fatemeh Zahedipour
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parvin Zamani
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mahmoud Reza Jaafari
- Nanotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutical Nanotechnology, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Amirhossein Sahebkar
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran; Applied Biomedical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
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12
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Zhao W, Wang X, Tang B. The impacts of spatial-temporal heterogeneity of human-to-human contacts on the extinction probability of infectious disease from branching process model. J Theor Biol 2024; 579:111703. [PMID: 38096979 DOI: 10.1016/j.jtbi.2023.111703] [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: 09/06/2023] [Revised: 11/26/2023] [Accepted: 12/07/2023] [Indexed: 12/18/2023]
Abstract
In this study, we focus on the impacts of spatial-temporal heterogeneity of human-to-human contacts on the spread of infectious diseases and develop a multi-type branching process model by introducing random human-to-human contact mode into a structured population. We provide the general formulas of the generation size, extinction probability, and basic reproduction number of the proposed branching process model. The result shows that the natural temporal heterogeneity (i.e. random contacts over time) can lead to a higher extinction probability while remains the same basic reproduction number and generation size. This is also numerically verified by choosing the real contact distributions from different circumstances of four countries. In addition, we observe a non-monotonic pattern of the differences, against the transmission probability and the mean contact rate, between the extinction probabilities under the constant and random contact patterns. Given the spatial heterogeneity, we show that it can contribute to the increase of basic reproduction number, but also increase the extinction probability of the infectious disease. This study adds novel insights to the course of the impact of heterogeneity on the transmission dynamics and also provides additional evidence for the limited role of reproduction numbers.
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Affiliation(s)
- Wuqiong Zhao
- School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049, PR China.
| | - Xia Wang
- School of Mathematics and Statistics, Shaanxi Normal University, Xi'an 710119, PR China.
| | - Biao Tang
- School of Mathematics and Statistics, Xi'an Jiaotong University, Xi'an 710049, PR China.
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13
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Sk MF, Samanta S, Poddar S, Kar P. Microsecond dynamics of H10N7 influenza neuraminidase reveals the plasticity of loop regions and drug resistance due to the R292K mutation. J Comput Chem 2024; 45:247-263. [PMID: 37787086 DOI: 10.1002/jcc.27234] [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: 03/22/2023] [Revised: 08/12/2023] [Accepted: 09/14/2023] [Indexed: 10/04/2023]
Abstract
At the beginning of the last century, multiple pandemics caused by influenza (flu) viruses severely impacted public health. Despite the development of vaccinations and antiviral medications to prevent and control impending flu outbreaks, unforeseen novel strains and continuously evolving old strains continue to represent a serious threat to human life. Therefore, the recently identified H10N7, for which not much data is available for rational structure-based drug design, needs to be further explored. Here, we investigated the structural dynamics of neuraminidase N7 upon binding of inhibitors, and the drug resistance mechanisms against the oseltamivir (OTV) and laninamivir (LNV) antivirals due to the crucial R292K mutation on the N7 using the computational microscope, molecular dynamics (MD) simulations. In this study, each system underwent long 2 × 1 μs MD simulations to answer the conformational changes and drug resistance mechanisms. These long time-scale dynamics simulations and free energy landscapes demonstrated that the mutant systems showed a high degree of conformational variation compared to their wildtype (WT) counterparts, and the LNV-bound mutant exhibited an extended 150-loop conformation. Further, the molecular mechanics Poisson-Boltzmann surface area (MM/PBSA) calculation and MM/GBSA free energy decomposition were used to characterize the binding of OTV and LNV with WT, and R292K mutated N7, revealing the R292K mutation as drug-resistant, facilitated by a decline in binding interaction and a reduction in the dehydration penalty. Due to the broader binding pocket cavity of the smaller K292 mutant residue relative to the wildtype, the drug carboxylate to K292 hydrogen bonding was lost, and the area surrounding the K292 residue was more accessible to water molecules. This implies that drug resistance could be reduced by strengthening the hydrogen bond contacts between N7 inhibitors and altered N7, creating inhibitors that can form a hydrogen bond to the mutant K292, or preserving the closed cavity conformations.
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Affiliation(s)
- Md Fulbabu Sk
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
- Theoretical and Computational Biophysics Group, NIH Resource for Macromolecular Modeling and Visualization, Beckman Institute for Advanced Science and Technology, University of Illinois Urbana-Champaign, Urbana, Illinois, USA
| | - Sunanda Samanta
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
| | - Sayan Poddar
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
| | - Parimal Kar
- Department of Biosciences and Biomedical Engineering, Indian Institute of Technology Indore, Indore, India
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14
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Styles CT, Zhou J, Flight KE, Brown JC, Lewis C, Wang X, Vanden Oever M, Peacock TP, Wang Z, Millns R, O'Neill JS, Borodavka A, Grove J, Barclay WS, Tregoning JS, Edgar RS. Propylene glycol inactivates respiratory viruses and prevents airborne transmission. EMBO Mol Med 2023; 15:e17932. [PMID: 37970627 PMCID: PMC10701621 DOI: 10.15252/emmm.202317932] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 11/17/2023] Open
Abstract
Viruses are vulnerable as they transmit between hosts, and we aimed to exploit this critical window. We found that the ubiquitous, safe, inexpensive and biodegradable small molecule propylene glycol (PG) has robust virucidal activity. Propylene glycol rapidly inactivates a broad range of viruses including influenza A, SARS-CoV-2 and rotavirus and reduces disease burden in mice when administered intranasally at concentrations commonly found in nasal sprays. Most critically, vaporised PG efficiently abolishes influenza A virus and SARS-CoV-2 infectivity within airborne droplets, potently preventing infection at levels well below those tolerated by mammals. We present PG vapour as a first-in-class non-toxic airborne virucide that can prevent transmission of existing and emergent viral pathogens, with clear and immediate implications for public health.
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Affiliation(s)
| | - Jie Zhou
- Department of Infectious DiseaseImperial College LondonLondonUK
| | - Katie E Flight
- Department of Infectious DiseaseImperial College LondonLondonUK
- Present address:
University College LondonLondonUK
| | | | - Charlotte Lewis
- MRC‐University of Glasgow Centre for Virus ResearchGlasgowUK
| | - Xinyu Wang
- Department of BiochemistryUniversity of CambridgeCambridgeUK
| | - Michael Vanden Oever
- Department of Infectious DiseaseImperial College LondonLondonUK
- Present address:
Life Edit TherapeuticsMorrisvilleNCUSA
| | | | - Ziyin Wang
- Department of Infectious DiseaseImperial College LondonLondonUK
| | - Rosie Millns
- Department of Infectious DiseaseImperial College LondonLondonUK
| | | | | | - Joe Grove
- MRC‐University of Glasgow Centre for Virus ResearchGlasgowUK
| | - Wendy S Barclay
- Department of Infectious DiseaseImperial College LondonLondonUK
| | | | - Rachel S Edgar
- Department of Infectious DiseaseImperial College LondonLondonUK
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15
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Fu X, Wang Q, Ma B, Zhang B, Sun K, Yu X, Ye Z, Zhang M. Advances in Detection Techniques for the H5N1 Avian Influenza Virus. Int J Mol Sci 2023; 24:17157. [PMID: 38138987 PMCID: PMC10743243 DOI: 10.3390/ijms242417157] [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: 10/30/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 12/24/2023] Open
Abstract
Avian influenza is caused by avian influenza virus infection; the H5N1 avian influenza virus is a highly pathogenic subtype, affecting poultry and human health. Since the discovery of the highly pathogenic subtype of the H5N1 avian influenza virus, it has caused enormous losses to the poultry farming industry. It was recently found that the H5N1 avian influenza virus tends to spread among mammals. Therefore, early rapid detection methods are highly significant for effectively preventing the spread of H5N1. This paper discusses the detection technologies used in the detection of the H5N1 avian influenza virus, including serological detection technology, immunological detection technology, molecular biology detection technology, genetic detection technology, and biosensors. Comparisons of these detection technologies were analyzed, aiming to provide some recommendations for the detection of the H5N1 avian influenza virus.
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Affiliation(s)
| | | | | | | | | | | | | | - Mingzhou Zhang
- Zhejiang Provincial Key Laboratory of Biometrology and Inspection & Quarantine, College of Life Science, China Jiliang University, 258 Xueyuan Street, Xiasha Higher Education Zone, Hangzhou 310018, China; (X.F.); (Q.W.); (B.M.); (B.Z.); (K.S.); (X.Y.); (Z.Y.)
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16
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Goncharov A, Joung HA, Ghosh R, Han GR, Ballard ZS, Maloney Q, Bell A, Aung CTZ, Garner OB, Carlo DD, Ozcan A. Deep Learning-Enabled Multiplexed Point-of-Care Sensor using a Paper-Based Fluorescence Vertical Flow Assay. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2300617. [PMID: 37104829 DOI: 10.1002/smll.202300617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 03/25/2023] [Indexed: 06/19/2023]
Abstract
Multiplexed computational sensing with a point-of-care serodiagnosis assay to simultaneously quantify three biomarkers of acute cardiac injury is demonstrated. This point-of-care sensor includes a paper-based fluorescence vertical flow assay (fxVFA) processed by a low-cost mobile reader, which quantifies the target biomarkers through trained neural networks, all within <15 min of test time using 50 µL of serum sample per patient. This fxVFA platform is validated using human serum samples to quantify three cardiac biomarkers, i.e., myoglobin, creatine kinase-MB, and heart-type fatty acid binding protein, achieving less than 0.52 ng mL-1 limit-of-detection for all three biomarkers with minimal cross-reactivity. Biomarker concentration quantification using the fxVFA that is coupled to neural network-based inference is blindly tested using 46 individually activated cartridges, which shows a high correlation with the ground truth concentrations for all three biomarkers achieving >0.9 linearity and <15% coefficient of variation. The competitive performance of this multiplexed computational fxVFA along with its inexpensive paper-based design and handheld footprint makes it a promising point-of-care sensor platform that can expand access to diagnostics in resource-limited settings.
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Affiliation(s)
- Artem Goncharov
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Hyou-Arm Joung
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Rajesh Ghosh
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Gyeo-Re Han
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Zachary S Ballard
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Quinn Maloney
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
| | - Alexandra Bell
- Chemistry & Biochemistry Department, University of California, Los Angeles, CA, 90095, USA
| | - Chew Tin Zar Aung
- Microbiology, Immunology & Molecular Genetics, University of California, Los Angeles, CA, 90095, USA
| | - Omai B Garner
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, CA, 90095, USA
| | - Dino Di Carlo
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
| | - Aydogan Ozcan
- Electrical & Computer Engineering Department, University of California, Los Angeles, CA, 90095, USA
- Bioengineering Department, University of California, Los Angeles, CA, 90095, USA
- California NanoSystems Institute (CNSI), University of California, Los Angeles, CA, 90095, USA
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17
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Li B, Ma R, Chen L, Zhou C, Zhang YX, Wang X, Huang H, Hu Q, Zheng X, Yang J, Shao M, Hao P, Wu Y, Che Y, Li C, Qin T, Gao L, Niu Z, Li Y. Diatomic iron nanozyme with lipoxidase-like activity for efficient inactivation of enveloped virus. Nat Commun 2023; 14:7312. [PMID: 37951992 PMCID: PMC10640610 DOI: 10.1038/s41467-023-43176-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 11/02/2023] [Indexed: 11/14/2023] Open
Abstract
Enveloped viruses encased within a lipid bilayer membrane are highly contagious and can cause many infectious diseases like influenza and COVID-19, thus calling for effective prevention and inactivation strategies. Here, we develop a diatomic iron nanozyme with lipoxidase-like (LOX-like) activity for the inactivation of enveloped virus. The diatomic iron sites can destruct the viral envelope via lipid peroxidation, thus displaying non-specific virucidal property. In contrast, natural LOX exhibits low antiviral performance, manifesting the advantage of nanozyme over the natural enzyme. Theoretical studies suggest that the Fe-O-Fe motif can match well the energy levels of Fe2 minority β-spin d orbitals and pentadiene moiety π* orbitals, and thus significantly lower the activation barrier of cis,cis-1,4-pentadiene moiety in the vesicle membrane. We showcase that the diatomic iron nanozyme can be incorporated into air purifier to disinfect airborne flu virus. The present strategy promises a future application in comprehensive biosecurity control.
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Affiliation(s)
- Beibei Li
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
- Department of Chemistry, Tsinghua University, 100084, Beijing, China
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan, China
| | - Ruonan Ma
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Lei Chen
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
- Department of Pharmacology, School of Medicine, Institute of Translational Medicine, Yangzhou University, 225001, Yangzhou, China
| | - Caiyu Zhou
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Yu-Xiao Zhang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Xiaonan Wang
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China
| | - Helai Huang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Qikun Hu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Xiaobo Zheng
- Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Jiarui Yang
- Department of Chemistry, Tsinghua University, 100084, Beijing, China
| | - Mengjuan Shao
- College of Veterinary Medicine, Yangzhou University, 225001, Yangzhou, China
| | - Pengfei Hao
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 130000, Changchun, China
| | - Yanfen Wu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Yizhen Che
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China
| | - Chang Li
- Research Unit of Key Technologies for Prevention and Control of Virus Zoonoses, Chinese Academy of Medical Sciences, Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 130000, Changchun, China
| | - Tao Qin
- College of Veterinary Medicine, Yangzhou University, 225001, Yangzhou, China
| | - Lizeng Gao
- CAS Engineering Laboratory for Nanozyme, Key Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, 100101, Beijing, China.
| | - Zhiqiang Niu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, 100084, Beijing, China.
| | - Yadong Li
- Department of Chemistry, Tsinghua University, 100084, Beijing, China
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18
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Patil V, Hernandez-Franco JF, Yadagiri G, Bugybayeva D, Dolatyabi S, Feliciano-Ruiz N, Schrock J, Suresh R, Hanson J, Yassine H, HogenEsch H, Renukaradhya GJ. Characterization of the Efficacy of a Split Swine Influenza A Virus Nasal Vaccine Formulated with a Nanoparticle/STING Agonist Combination Adjuvant in Conventional Pigs. Vaccines (Basel) 2023; 11:1707. [PMID: 38006039 PMCID: PMC10675483 DOI: 10.3390/vaccines11111707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/09/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
Swine influenza A viruses (SwIAVs) are pathogens of both veterinary and medical significance. Intranasal (IN) vaccination has the potential to reduce flu infection. We investigated the efficacy of split SwIAV H1N2 antigens adsorbed with a plant origin nanoparticle adjuvant [Nano11-SwIAV] or in combination with a STING agonist ADU-S100 [NanoS100-SwIAV]. Conventional pigs were vaccinated via IN and challenged with a heterologous SwIAV H1N1-OH7 or 2009 H1N1 pandemic virus. Immunologically, in NanoS100-SwIAV vaccinates, we observed enhanced frequencies of activated monocytes in the blood of the pandemic virus challenged animals and in tracheobronchial lymph nodes (TBLN) of H1N1-OH7 challenged animals. In both groups of the virus challenged pigs, increased frequencies of IL-17A+ and CD49d+IL-17A+ cytotoxic lymphocytes were observed in Nano11-SwIAV vaccinates in the draining TBLN. Enhanced frequency of CD49d+IFNγ+ CTLs in the TBLN and blood of both the Nano11-based SwIAV vaccinates was observed. Animals vaccinated with both Nano11-based vaccines had upregulated cross-reactive secretory IgA in the lungs and serum IgG against heterologous and heterosubtypic viruses. However, in NanoS100-SwIAV vaccinates, a slight early reduction in the H1N1 pandemic virus and a late reduction in the SwIAV H1N1-OH7 load in the nasal passages were detected. Hence, despite vast genetic differences between the vaccine and both the challenge viruses, IN vaccination with NanoS100-SwIAV induced antigen-specific moderate levels of cross-protective immune responses.
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Affiliation(s)
- Veerupaxagouda Patil
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Juan F. Hernandez-Franco
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA;
| | - Ganesh Yadagiri
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Dina Bugybayeva
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Sara Dolatyabi
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Ninoshkaly Feliciano-Ruiz
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Jennifer Schrock
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Raksha Suresh
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Juliette Hanson
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
| | - Hadi Yassine
- Biomedical Research Center, Research Institute in Doha, Qatar University, QU-NRC, Building H10, Zone 5, Room D101, Doha P.O. Box 2713, Qatar;
| | - Harm HogenEsch
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907, USA;
| | - Gourapura J. Renukaradhya
- Center for Food Animal Health, Department of Animal Sciences, The Ohio State University, 1680 Madison Avenue, Wooster, OH 44691, USA; (V.P.); (G.Y.); (D.B.); (S.D.); (N.F.-R.); (J.S.); (R.S.); (J.H.)
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19
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Ge Y, Zhang C, Qu Y, Ding L, Zhang X, Zhang Z, Jin C, Wang XN, Wang Z. Synthesis and pharmacodynamic evaluation of naphthalene derivatives against influenza A virus in vitro and in vivo. Eur J Med Chem 2023; 259:115660. [PMID: 37517205 DOI: 10.1016/j.ejmech.2023.115660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 07/12/2023] [Accepted: 07/16/2023] [Indexed: 08/01/2023]
Abstract
Influenza A virus is a highly mutable pathogenic pathogen that could cause a global pandemic. It is necessary to find new anti-influenza drugs to resist influenza epidemics due to the seasonal popularity of a certain area every year. Naphthalene derivatives had potential antiviral activity. A series of naphthalene derivatives were synthesized via the metal-free intramolecular hydroarylation reactions of alkynes. Evaluation of their biological efficacy showed that compound 2-aminonaphthalene 4d had better antiviral activity in vitro than ribavirin. By studying the mechanism of action of 2-aminonaphthalene 4din vivo and in vitro, we found that 4d had antiviral activity to three different subtype influenza viruses of A/Weiss/43 (H1N1), A/Virginia/ATCC2/2009 (H1N1) and A/California/2/2014 (H3N2). Compound 4d had the best effect after viral adsorption, and mainly played in the early stage of virus replication. 2-Aminonaphthalene 4d could reduce the replication of virus by inhibiting the NP and M proteins of virus. Compound 4d cut down ROS accumulation, autophagy and apoptosis induced by influenza virus. Inflammatory response mediated by RIG-1 pathway were suppressed in the cell and mice. In addition, the pathological changes of lung tissue and virus titer in mice were reduced by the administration of 4d. Therefore, naphthalene derivative 4d is a potential drug for the treatment of influenza A virus infection.
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Affiliation(s)
- Yongzhuang Ge
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Chaofeng Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Ying Qu
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Lixia Ding
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xinbo Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Zhongmou Zhang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Chengyun Jin
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiao-Na Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
| | - Zhenya Wang
- Collaborative Innovation Center of New Drug Research and Safety Evaluation, Key Laboratory of Advanced Drug Preparation Technologies, Ministry of Education, Key Laboratory of "Runliang" Antiviral Medicines Research and Development, Institute of Drug Discovery & Development, School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China.
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Batta I, Kaur T, Agrawal DK. Distinguishing Swine Flu (H1N1) from COVID-19: Clinical, Virological, and Immunological Perspectives. ARCHIVES OF MICROBIOLOGY & IMMUNOLOGY 2023; 7:271-280. [PMID: 37994372 PMCID: PMC10664801 DOI: 10.26502/ami.936500125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2023]
Abstract
This article provides an in-depth examination on the differences between the influenza A strain, H1N1 (also called Swine Flu) and Covid-19 focusing on the immune response and clinical symptoms. Flu symptoms due to influenza A strain, H1N1, were initially discovered in 2009. This variant of influenza A is believed to have emerged through reassortment, a process where the resulting virus inherits gene segments from each of its parental viruses. This reassortment event has resulted in a variant with altered characteristics, potentially affecting the level of immunity in humans. The symptoms of this strain typically manifest 1-4 days after exposure and include fever, cough, sore throat, runny/stuffy nose, body aches, fatigue, and gastrointestinal symptoms such as diarrhea. The transmission dynamics of this new variant, including human-to-human transmission, are still under investigation by health authorities. Individuals with weakened immune systems are generally more susceptible to severe illness. Risk factors associated with swine flu can include older adults, young children, pregnant women, and individuals with obesity. Historical variants of swine flu, such as the 2015 variant in India, have been associated with significant case numbers and deaths, often due to respiratory failure. Since the epidemic of Covid-19 due to SARS-CoV2 in early 2020, several symptoms of COVID-19 and swine flu overlap. In this article, we critically reviewed the differences and similarities in the immune response and clinical symptoms due to H1N1 virus and SARS-CoV2 in human.
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Affiliation(s)
- Irene Batta
- Bothell High School, Bothell, Washington, USA
| | - Tejinder Kaur
- Department of Zoology, DAV University, Jallandhar, Punjab, India
| | - Devendra K Agrawal
- Department of Translational Research, Western University of Health Sciences, Pomona, California, USA
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Hong SL, Wang X, Bao ZH, Zhang MF, Tang M, Zhang N, Liu H, Zhu ZY, Liu K, Chen ZL, Li W. Simultaneous detection of multiple influenza virus subtypes based on microbead-encoded microfluidic chip. Anal Chim Acta 2023; 1279:341773. [PMID: 37827673 DOI: 10.1016/j.aca.2023.341773] [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: 06/12/2023] [Revised: 08/06/2023] [Accepted: 09/01/2023] [Indexed: 10/14/2023]
Abstract
Influenza virus, existing many subtypes, causes a huge risk of people health and life. Different subtypes bring a huge challenge for detection and treatment, thus simultaneous detection of multiple influenza virus subtypes plays a key role in fight against this disease. In this work, three kinds of influenza virus subtypes are one-step detection based on microbead-encoded microfluidic chip. HIN1, H3N2 and H7N3 were simultaneously captured only by microbeads of different magnetism and sizes, and they were further treated by magnetic separation and enriched through the magnetism and size-dependent microfluidic structure. Different subtypes of influenza virus could be linearly encoded in different detection zones of microfluidic chip according to microbeads of magnetism and size differences. With the high-brightness quantum dots (QDs) as label, the enriched fluorescence detection signals were further read online from linearly encoded strips, obtaining high sensitivity with detection limit of HIN1, H3N2, H7N3 about 2.2 ng/mL, 3.4 ng/mL and 2.9 ng/mL. Moreover, a visual operation interface, microcontroller unit and two-way syringe pump were consisted of a miniaturized detection device, improving the detection process automation. And this assay showed strong specificity. This method improves a new way of multiple pathogens detection using microbead-encoded technologies in the microfluidic chip.
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Affiliation(s)
- Shao-Li Hong
- College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China; Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, People's Republic of China.
| | - Xuan Wang
- College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China; Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Zhong-Hua Bao
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Meng-Fan Zhang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Man Tang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Nangang Zhang
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Huihong Liu
- College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Zi-Yuan Zhu
- College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Kan Liu
- School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China
| | - Zhi-Liang Chen
- School of Pharmacy, Shaoyang University, Shaoyang, Hunan, 422000, People's Republic of China.
| | - Wei Li
- College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, People's Republic of China; Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, People's Republic of China.
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22
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Zhang Z, Li S, Sun L, Yan W, Huang L, Lu J, Wang Q, Li M, Zheng D, Liu Y, Ding X. Skills assessment after a grape-based microsurgical course for ophthalmology residents: randomised controlled trial. Br J Ophthalmol 2023; 107:1395-1402. [PMID: 35701080 PMCID: PMC10447371 DOI: 10.1136/bjophthalmol-2022-321135] [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: 01/17/2022] [Accepted: 05/19/2022] [Indexed: 11/04/2022]
Abstract
AIMS To introduce and assess a course using grapes as training models for ophthalmology residents to acquire basic microsurgical skills. METHODS Ophthalmology residents who were novices at microsurgery were included. Participants were randomised into a 1:1 ratio to a 4-hour training programme based on fruit models (group A) or virtual reality (VR) modulator and silicone suture pads (group B), respectively. Before and after training, questionnaires were designed to measure their self-confidence with ophthalmic operations and with their coming role as surgical assistants. After training, each participant provided their interest in further studying microsurgery and was assessed for their general competence of ophthalmic microsurgery on porcine eyes. RESULTS Eighty-three participants were included, with 42 ones in group A and 41 ones in group B. After training, participants in group A performed better in the uniformities of the suture span (p<0.05), suture thickness (p<0.05) and tissue protection (p<0.05) during the corneal suturing assessment. The overall scores of corneal suturing and circular capsulorhexis in the porcine eye in group A were comparable to those in group B (p=0.26 and 0.87, respectively). Group A showed a more positive attitude to withstand the training for more than 4 hours (p<0.001), as well as a higher willingness to receive more times of the training in the future (p<0.001). CONCLUSIONS Training models based on grapes are equal to VR simulators and silicon suture pads to provide solid training tasks for ophthalmology residents to master basic microsurgical skills, and might have advantages in lower economic cost, and easy availability. TRIAL REGISTRATION NUMBER ChiCTR2000040439.
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Affiliation(s)
- Zhaotian Zhang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Songshan Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Limei Sun
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Wenjia Yan
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Li Huang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Jinglin Lu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Qiong Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Mengke Li
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Danying Zheng
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Yizhi Liu
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Xiaoyan Ding
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
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23
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Perrocheau A, Jephcott F, Asgari-Jirhanden N, Greig J, Peyraud N, Tempowski J. Investigating outbreaks of initially unknown aetiology in complex settings: findings and recommendations from 10 case studies. Int Health 2023; 15:537-546. [PMID: 36630891 PMCID: PMC10472873 DOI: 10.1093/inthealth/ihac088] [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: 05/30/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND Outbreaks of unknown aetiology in complex settings pose challenges and there is little information about investigation methods. We reviewed investigations into such outbreaks to identify methods favouring or impeding identification of the cause. METHODS We used two approaches: reviewing scientific literature and soliciting key informants. Case studies were developed through interviews with people involved and triangulated with documents available from the time of the investigation. RESULTS Ten outbreaks in African or Asian countries within the period 2007-2017 were selected. The cause was identified in seven, of which two had an unclear mode of transmission, and in three, neither origin nor transmission mode was identified. Four events were caused by infectious agents and three by chemical poisoning. Despite differences in the outbreaks, similar obstacles were noted: incomplete or delayed description of patients, comorbidities confounding clinical pictures and case definitions wrongly attributed. Repeated rounds of data collection and laboratory investigations were common and there was limited capacity to ship samples. DISCUSSION It was not possible to define activities that led to prompt identification of the cause in the case studies selected. Based on the observations, we conclude that basing case definitions on precise medical observations, implementing initial comprehensive data collection, including environmental, social and behavioural information; and involving local informants could save precious time and hasten implementation of control measures.
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Affiliation(s)
- Anne Perrocheau
- Health Emergencies Programme, World Health Organization, Geneva 1211, Switzerland
| | - Freya Jephcott
- Health Emergencies Programme, World Health Organization, Geneva 1211, Switzerland
| | - Nima Asgari-Jirhanden
- Asia Pacific Observatory on Health Systems and Policies, World Health Organization, New Delhi 110 001, India
| | - Jane Greig
- Manson unit, Médecins Sans Frontières, London EC4A 1AB, UK
| | - Nicolas Peyraud
- Médecins Sans Frontières International, Geneva 1211, Switzerland
| | - Joanna Tempowski
- Chemical Safety and Health, World Health Organization, Geneva 1211, United Kingdom
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24
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Nourinejhad Zarghani S, Al Kubrusli R, Iancev S, Jalkanen R, Büttner C, von Bargen S. Molecular Population Genetics of Aspen Mosaic-Associated Virus in Finland and Sweden. Viruses 2023; 15:1678. [PMID: 37632020 PMCID: PMC10460043 DOI: 10.3390/v15081678] [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: 07/20/2023] [Revised: 07/29/2023] [Accepted: 07/31/2023] [Indexed: 08/27/2023] Open
Abstract
Aspen mosaic-associated virus (AsMaV) is a newly identified Emaravirus, in the family Fimoviridae, Bunyavirales, associated with mosaic symptoms in aspen trees (Populus tremula). Aspen trees are widely distributed in Europe and understanding the population structure of AsMaV may aid in the development of better management strategies. The virus genome consists of five negative-sense single-stranded RNA (-ssRNA) molecules. To investigate the genetic diversity and population parameters of AsMaV, different regions of the genome were amplified and analyzed and full-length sequence of the divergent isolates were cloned and sequenced. The results show that RNA3 or nucleoprotein is a good representative for studying genetic diversity in AsMaV. Developed RT-PCR-RFLP was able to identify areas with a higher number of haplotypes and could be applied for screening the large number of samples. In general, AsMaV has a conserved genome and based on the phylogenetic studies, geographical structuring was observed in AsMaV isolates from Sweden and Finland, which could be attributed to founder effects. The genome of AsMaV is under purifying selection but not distributed uniformly on genomic RNAs. Distant AsMaV isolates displayed amino acid sequence variations compared to other isolates, and bioinformatic analysis predicted potential post-translational modification sites in some viral proteins.
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Affiliation(s)
- Shaheen Nourinejhad Zarghani
- Division Phytomedicine, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Lentzeallee 55-57, 14197 Berlin, Germany; (S.N.Z.); (R.A.K.); (C.B.)
| | - Rim Al Kubrusli
- Division Phytomedicine, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Lentzeallee 55-57, 14197 Berlin, Germany; (S.N.Z.); (R.A.K.); (C.B.)
| | - Serghei Iancev
- Division Phytomedicine, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Lentzeallee 55-57, 14197 Berlin, Germany; (S.N.Z.); (R.A.K.); (C.B.)
| | | | - Carmen Büttner
- Division Phytomedicine, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Lentzeallee 55-57, 14197 Berlin, Germany; (S.N.Z.); (R.A.K.); (C.B.)
| | - Susanne von Bargen
- Division Phytomedicine, Faculty of Life Sciences, Albrecht Daniel Thaer-Institute of Agricultural and Horticultural Sciences, Humboldt-Universität zu Berlin, Lentzeallee 55-57, 14197 Berlin, Germany; (S.N.Z.); (R.A.K.); (C.B.)
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25
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Baumberger C, Di Pillo F, Galdames P, Oyarzun C, Marambio V, Jimenez-Bluhm P, Hamilton-West C. Swine Backyard Production Systems in Central Chile: Characterizing Farm Structure, Animal Management, and Production Value Chain. Animals (Basel) 2023; 13:2000. [PMID: 37370510 DOI: 10.3390/ani13122000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/07/2023] [Accepted: 06/09/2023] [Indexed: 06/29/2023] Open
Abstract
Backyard production systems (BPS) are highly distributed in central Chile. While poultry BPS have been extensively characterized, there remains a notable gap in the characterization of swine BPS in central Chile. In addition, there is evidence that zoonotic pathogens, such as influenza A virus and Salmonella spp., are circulating in backyard poultry and pigs. A total of 358 BPS located in central Chile were evaluated between 2013 and 2015 by interviewing farm owners. Severe deficiencies in biosecurity measures were observed. The value chain of swine backyard production identified food, veterinary care (visits and products), and replacement or breeding animals as the primary inputs to the backyard. The most common origin of swine replacements was from outside the BPS (63%). The main outputs of the system were identified as meat and live animals, including piglets and breeding animals. In 16% of BPS, breeding animals were lent to other BPS, indicating the existence of animals and animal product movement in and out of backyard farms. Results from this study indicate that swine BPS in central Chile represents an animal-human interface that demands special attention for implementing targeted preventive measures to prevent the introduction and spread of animal pathogens and the emergence of zoonotic pathogens.
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Affiliation(s)
- Cecilia Baumberger
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
- Programa de Doctorado en Ciencias Silvoagropecuarias y Veterinarias, Campus Sur Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
| | - Francisca Di Pillo
- Núcleo de Investigaciones Aplicadas en Ciencias Veterinarias y Agronómicas, Facultad de Medicina Veterinaria y Agronomía, Universidad de Las Américas, Sede Providencia, Manuel Montt 948, Santiago 7500972, Chile
| | - Pablo Galdames
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
| | - Cristobal Oyarzun
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
| | - Victor Marambio
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
- Programa de Doctorado en Ciencias Silvoagropecuarias y Veterinarias, Campus Sur Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
| | - Pedro Jimenez-Bluhm
- Escuela de Medicina Veterinaria, Facultad de Ciencias Biológicas, Facultad de Medicina y Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Santiago 7820436, Chile
| | - Christopher Hamilton-West
- Departamento de Medicina Preventiva, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11315, Santiago 8820808, Chile
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26
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Yin R, Luo Z, Zhuang P, Zeng M, Li M, Lin Z, Kwoh CK. ViPal: A framework for virulence prediction of influenza viruses with prior viral knowledge using genomic sequences. J Biomed Inform 2023; 142:104388. [PMID: 37178781 PMCID: PMC10602211 DOI: 10.1016/j.jbi.2023.104388] [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: 01/24/2023] [Revised: 04/30/2023] [Accepted: 05/07/2023] [Indexed: 05/15/2023]
Abstract
Influenza viruses pose great threats to public health and cause enormous economic losses every year. Previous work has revealed the viral factors associated with the virulence of influenza viruses in mammals. However, taking prior viral knowledge represented by heterogeneous categorical and discrete information into account to explore virus virulence is scarce in the existing work. How to make full use of the preceding domain knowledge in virulence study is challenging but beneficial. This paper proposes a general framework named ViPal for virulence prediction in mice that incorporates discrete prior viral mutation and reassortment information based on all eight influenza segments. The posterior regularization technique is leveraged to transform prior viral knowledge into constraint features and integrated into the machine learning models. Experimental results on influenza genomic datasets validate that our proposed framework can improve virulence prediction performance over baselines. The comparison between ViPal and other existing methods shows the computational efficiency of our framework with comparable or superior performance. Moreover, the interpretable analysis through SHAP (SHapley Additive exPlanations) identifies the scores of constraint features contributing to the prediction. We hope this framework could provide assistance for the accurate detection of influenza virulence and facilitate flu surveillance.
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Affiliation(s)
- Rui Yin
- Department of Health Outcomes and Biomedical Informatics, University of Florida, Gainesville, USA; School of Computer Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
| | - Zihan Luo
- School of Electronic Information and Communications, Huazhong University of Science and Technology, Wuhan, China
| | - Pei Zhuang
- Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Min Zeng
- School of Computer Science and Engineering, Central South University, Changsha, China
| | - Min Li
- School of Computer Science and Engineering, Central South University, Changsha, China
| | - Zhuoyi Lin
- School of Computer Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Chee Keong Kwoh
- School of Computer Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
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27
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Ferrando VA, Friedrich ME, Gandhi S, Mellmann A, Masemann D, Christersson A, Anhlan D, Brunotte L, Stoll M, Harder T, Beer M, Boergeling Y, Ludwig S. Cell-intrinsic genomic reassortment of pandemic H1N1 2009 and Eurasian avian-like swine influenza viruses results in potentially zoonotic variants. Emerg Microbes Infect 2023; 12:2212809. [PMID: 37191590 DOI: 10.1080/22221751.2023.2212809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Influenza A viruses (IAV) cause annual epidemics and occasional pandemics in humans. The most recent pandemic outbreak occurred in 2009 with H1N1pdm09. This virus, which most likely reassorted in swine before its transmission to humans, was reintroduced into the swine population and continues circulating ever since. In order to assess its potential to cause reassortants on a cellular level, human origin H1N1pdm09 and a recent Eurasian avian-like H1N1 swine IAV were (co-)passaged in the newly generated swine lung cell line C22. Co-infection with both viruses gave rise to numerous reassortants that additionally carry different mutations which can partially be found in nature as well. Reassortment most frequently affected the PB1, PA and NA segments with the swine IAV as recipient. These reassortants reached higher titers in swine lung cells and were able to replicate in genuine human lung tissue explants ex vivo, suggesting a possible zoonotic potential. Interestingly, reassortment and mutations in the viral ribonucleoprotein complex influence the viral polymerase activity in a cell type and species-specific manner. In summary, we demonstrate reassortment promiscuity of these viruses in a novel swine lung cell model and indicate a possible zoonotic potential of the reassortants.
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Affiliation(s)
- Verónica A Ferrando
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Marcel E Friedrich
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Shrey Gandhi
- Department of Genetic Epidemiology, Institute of Human Genetics, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Alexander Mellmann
- Institute of Hygiene Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Dörthe Masemann
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Anmari Christersson
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Darisuren Anhlan
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Linda Brunotte
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Monika Stoll
- Department of Genetic Epidemiology, Institute of Human Genetics, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Timm Harder
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institute 17493 Greifswald, Germany
| | - Martin Beer
- Institute of Diagnostic Virology, Friedrich-Loeffler-Institute 17493 Greifswald, Germany
| | - Yvonne Boergeling
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
| | - Stephan Ludwig
- Institute of Virology Münster, Westfälische Wilhelms-University 48149 Münster, Germany
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Zhang Y, Chi X, Hu J, Wang S, Zhao S, Mao Y, Peng B, Chen J, Wang S. LncRNA LINC02574 Inhibits Influenza A Virus Replication by Positively Regulating the Innate Immune Response. Int J Mol Sci 2023; 24:ijms24087248. [PMID: 37108410 PMCID: PMC10138361 DOI: 10.3390/ijms24087248] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/30/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
Studies have shown that long noncoding RNAs (lncRNAs) play crucial roles in regulating virus infection, host immune response, and other biological processes. Although some lncRNAs have been reported to be involved in antiviral immunity, many lncRNAs have unknown functions in interactions between the host and various viruses, especially influenza A virus (IAV). Herein, we demonstrate that the expression of lncRNA LINC02574 can be induced by IAV infection. Treatment with viral genomic RNA, poly (I:C), or interferons (IFNs) significantly stimulated LINC02574 expression, while RIG-I knockdown and IFNAR1 knockout significantly decreased LINC02574 expression after viral infection or IFN treatment. In addition, inhibition of LINC02574 expression in A549 cells enhanced IAV replication, while overexpression of LINC02574 inhibited viral production. Interestingly, knockdown of LINC02574 attenuated the expression of type I and type III IFNs and multiple ISGs, as well as the activation of STAT1 triggered by IAV infection. Moreover, LINC02574 deficiency impaired the expression of RIG-I, TLR3, and MDA5, and decreased the phosphorylation level of IRF3. In conclusion, the RIG-I-dependent interferon signaling pathway can induce LINC02574 expression. Moreover, the data reveal that LINC02574 inhibits IAV replication by positively regulating the innate immune response.
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Affiliation(s)
- Yanwei Zhang
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiaojuan Chi
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jingyun Hu
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Shulin Wang
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Senhong Zhao
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yanan Mao
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Benqun Peng
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Jilong Chen
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Song Wang
- Key Laboratory of Animal Pathogen Infection and Immunology of Fujian Province, Fujian Agriculture and Forestry University, Fuzhou 350002, China
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, Fujian Agriculture and Forestry University, Fuzhou 350002, China
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Resende F, de Araújo S, Tavares LP, Teixeira MM, Costa VV. The Multifaceted Role of Annexin A1 in Viral Infections. Cells 2023; 12:1131. [PMID: 37190040 PMCID: PMC10137178 DOI: 10.3390/cells12081131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Dysregulated inflammatory responses are often correlated with disease severity during viral infections. Annexin A1 (AnxA1) is an endogenous pro-resolving protein that timely regulates inflammation by activating signaling pathways that culminate with the termination of response, clearance of pathogen and restoration of tissue homeostasis. Harnessing the pro-resolution actions of AnxA1 holds promise as a therapeutic strategy to control the severity of the clinical presentation of viral infections. In contrast, AnxA1 signaling might also be hijacked by viruses to promote pathogen survival and replication. Therefore, the role of AnxA1 during viral infections is complex and dynamic. In this review, we provide an in-depth view of the role of AnxA1 during viral infections, from pre-clinical to clinical studies. In addition, this review discusses the therapeutic potential for AnxA1 and AnxA1 mimetics in treating viral infections.
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Affiliation(s)
- Filipe Resende
- Post-Graduation Program of Cell Biology, Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- Center for Research and Development of Drugs, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Simone de Araújo
- Center for Research and Development of Drugs, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Luciana Pádua Tavares
- Pulmonary and Critical Care Medicine Division, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Mauro Martins Teixeira
- Center for Research and Development of Drugs, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- Department of Biochemistry and Immunology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
| | - Vivian Vasconcelos Costa
- Post-Graduation Program of Cell Biology, Department of Morphology, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
- Center for Research and Development of Drugs, Biological Sciences Institute, Federal University of Minas Gerais, Belo Horizonte 31270-901, Brazil
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Farjo M, Brooke CB. When influenza viruses don't play well with others. Nature 2023; 616:668-669. [PMID: 37019958 DOI: 10.1038/d41586-023-00983-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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31
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Luo J, Zhang Z, Zhao S, Gao R. A Comparison of Etiology, Pathogenesis, Vaccinal and Antiviral Drug Development between Influenza and COVID-19. Int J Mol Sci 2023; 24:ijms24076369. [PMID: 37047339 PMCID: PMC10094131 DOI: 10.3390/ijms24076369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 03/15/2023] [Accepted: 03/20/2023] [Indexed: 03/30/2023] Open
Abstract
Influenza virus and coronavirus, two kinds of pathogens that exist widely in nature, are common emerging pathogens that cause respiratory tract infections in humans. In December 2019, a novel coronavirus SARS-CoV-2 emerged, causing a severe respiratory infection named COVID-19 in humans, and raising a global pandemic which has persisted in the world for almost three years. Influenza virus, a seasonally circulating respiratory pathogen, has caused four global pandemics in humans since 1918 by the emergence of novel variants. Studies have shown that there are certain similarities in transmission mode and pathogenesis between influenza and COVID-19, and vaccination and antiviral drugs are considered to have positive roles as well as several limitations in the prevention and control of both diseases. Comparative understandings would be helpful to the prevention and control of these diseases. Here, we review the study progress in the etiology, pathogenesis, vaccine and antiviral drug development for the two diseases.
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Pushan SS, Samantaray M, Rajagopalan M, Ramaswamy A. Evolution of Indian Influenza A (H1N1) Hemagglutinin Strains: A Comparative Analysis of the Pandemic Californian HA Strain. Front Mol Biosci 2023; 10:1111869. [PMID: 37006623 PMCID: PMC10061220 DOI: 10.3389/fmolb.2023.1111869] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 02/20/2023] [Indexed: 03/18/2023] Open
Abstract
The need for a vaccine/inhibitor design has become inevitable concerning the emerging epidemic and pandemic viral infections, and the recent outbreak of the influenza A (H1N1) virus is one such example. From 2009 to 2018, India faced severe fatalities due to the outbreak of the influenza A (H1N1) virus. In this study, the potential features of reported Indian H1N1 strains are analyzed in comparison with their evolutionarily closest pandemic strain, A/California/04/2009. The focus is laid on one of its surface proteins, hemagglutinin (HA), which imparts a significant role in attacking the host cell surface and its entry. The extensive analysis performed, in comparison with the A/California/04/2009 strain, revealed significant point mutations in all Indian strains reported from 2009 to 2018. Due to these mutations, all Indian strains disclosed altered features at the sequence and structural levels, which are further presumed to be associated with their functional diversity as well. The mutations observed with the 2018 HA sequence such as S91R, S181T, S200P, I312V, K319T, I419M, and E523D might improve the fitness of the virus in a new host and environment. The higher fitness and decreased sequence similarity of mutated strains may compromise therapeutic efficacy. In particular, the mutations observed commonly, such as serine-to-threonine, alanine-to-threonine, and lysine-to-glutamine at various regions, alter the physico-chemical features of receptor-binding domains, N-glycosylation, and epitope-binding sites when compared with the reference strain. Such mutations render diversity among all Indian strains, and the structural and functional characterization of these strains becomes inevitable. In this study, we observed that mutational drift results in the alteration of the receptor-binding domain, the generation of new variant N-glycosylation along with novel epitope-binding sites, and modifications at the structural level. Eventually, the pressing need to develop potentially distinct next-generation therapeutic inhibitors against the HA strains of the Indian influenza A (H1N1) virus is also highlighted here.
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Affiliation(s)
- Shilpa Sri Pushan
- Department of Bioinformatics, Pondicherry University, Puducherry, India
| | - Mahesh Samantaray
- Department of Bioinformatics, Pondicherry University, Puducherry, India
| | - Muthukumaran Rajagopalan
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Amutha Ramaswamy
- Department of Bioinformatics, Pondicherry University, Puducherry, India
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Wang C, Hao X, Chen S. Calling for improved pulmonary and critical care medicine in China and beyond. CHINESE MEDICAL JOURNAL PULMONARY AND CRITICAL CARE MEDICINE 2023; 1:1-2. [PMID: 39170875 PMCID: PMC11332819 DOI: 10.1016/j.pccm.2023.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 03/30/2023] [Indexed: 08/23/2024]
Affiliation(s)
- Chen Wang
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Xiuyuan Hao
- Editorial Department of Chinese Medical Journal Pulmonary and Critical Care Medicine, Chinese Medical Association, Beijing 100052, China
| | - Simiao Chen
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
- Heidelberg Institute of Global Health, Faculty of Medicine and University Hospital, Heidelberg University, Heidelberg, Germany
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Yang ML, Chen YC, Wang CT, Chong HE, Chung NH, Leu CH, Liu FT, Lai MMC, Ling P, Wu CL, Shiau AL. Upregulation of galectin-3 in influenza A virus infection promotes viral RNA synthesis through its association with viral PA protein. J Biomed Sci 2023; 30:14. [PMID: 36823664 PMCID: PMC9948428 DOI: 10.1186/s12929-023-00901-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 01/11/2023] [Indexed: 02/25/2023] Open
Abstract
BACKGROUND Influenza is one of the most important viral infections globally. Viral RNA-dependent RNA polymerase (RdRp) consists of the PA, PB1, and PB2 subunits, and the amino acid residues of each subunit are highly conserved among influenza A virus (IAV) strains. Due to the high mutation rate and emergence of drug resistance, new antiviral strategies are needed. Host cell factors are involved in the transcription and replication of influenza virus. Here, we investigated the role of galectin-3, a member of the β-galactoside-binding animal lectin family, in the life cycle of IAV infection in vitro and in mice. METHODS We used galectin-3 knockout and wild-type mice and cells to study the intracellular role of galectin-3 in influenza pathogenesis. Body weight and survival time of IAV-infected mice were analyzed, and viral production in mouse macrophages and lung fibroblasts was examined. Overexpression and knockdown of galectin-3 in A549 human lung epithelial cells were exploited to assess viral entry, viral ribonucleoprotein (vRNP) import/export, transcription, replication, virion production, as well as interactions between galectin-3 and viral proteins by immunoblotting, immunofluorescence, co-immunoprecipitation, RT-qPCR, minireplicon, and plaque assays. We also employed recombinant galectin-3 proteins to identify specific step(s) of the viral life cycle that was affected by exogenously added galectin-3 in A549 cells. RESULTS Galectin-3 levels were increased in the bronchoalveolar lavage fluid and lungs of IAV-infected mice. There was a positive correlation between galectin-3 levels and viral loads. Notably, galectin-3 knockout mice were resistant to IAV infection. Knockdown of galectin-3 significantly reduced the production of viral proteins and virions in A549 cells. While intracellular galectin-3 did not affect viral entry, it increased vRNP nuclear import, RdRp activity, and viral transcription and replication, which were associated with the interaction of galectin-3 with viral PA subunit. Galectin-3 enhanced the interaction between viral PA and PB1 proteins. Moreover, exogenously added recombinant galectin-3 proteins also enhanced viral adsorption and promoted IAV infection in A549 cells. CONCLUSION We demonstrate that galectin-3 enhances viral infection through increases in vRNP nuclear import and RdRp activity, thereby facilitating viral transcription and replication. Our findings also identify galectin-3 as a potential therapeutic target for influenza.
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Affiliation(s)
- Mei-Lin Yang
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan ,grid.413878.10000 0004 0572 9327Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan
| | - Yi-Cheng Chen
- grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Chung-Teng Wang
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Hao-Earn Chong
- grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Nai-Hui Chung
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Chia-Hsing Leu
- grid.64523.360000 0004 0532 3255Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Fu-Tong Liu
- grid.28665.3f0000 0001 2287 1366Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Michael M. C. Lai
- grid.254145.30000 0001 0083 6092Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan ,grid.28665.3f0000 0001 2287 1366Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Pin Ling
- grid.64523.360000 0004 0532 3255Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401 Taiwan
| | - Chao-Liang Wu
- Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan. .,Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401, Taiwan.
| | - Ai-Li Shiau
- Department of Microbiology and Immunology, College of Medicine, National Cheng Kung University, 1, University Road, Tainan, 701401, Taiwan. .,Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chiayi, Taiwan.
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Son SU, Jang S, Lim J, Seo SB, Kang T, Jung J, Oh SY, Yoon SW, Yong D, Lee J, Lim EK. Conductive Thread-Based Immunosensor for Pandemic Influenza A (H1N1) Virus Detection. ACS APPLIED MATERIALS & INTERFACES 2023; 15:7759-7766. [PMID: 36748606 DOI: 10.1021/acsami.2c19403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Infectious agents such as viruses pose significant threats to human health, being transmitted via direct contact as well as airborne transmission without direct contact, thus requiring rapid detection to prevent the spread of infectious diseases. In this study, we developed a conductive thread-based immunosensor (CT-IS), a biosensor to easily detect the presence of airborne viruses. CT-IS utilizes an antibody that specifically recognizes the HA protein of the pandemic influenza A (pH1N1) virus, which is incorporated into the conductive thread. The antigen-antibody interaction results in increased strain on the conductive thread in the presence of the pH1N1 virus, resulting in increased electrical resistance of the CT-IS. We evaluated the performance of this sensor using the HA protein and the pH1N1 virus, in addition to samples from patients infected with the pH1N1 virus. We observed a significant change in resistance in the pH1N1-infected patient samples (positive: n = 11, negative: n = 9), whereas negligible change was observed in the control samples (patients not infected with the pH1N1 virus; negative). Hence, the CT-IS is a lightweight fiber-type sensor that can be used as a wearable biosensor by combining it with textiles, to detect the pH1N1 virus in a person's vicinity.
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Affiliation(s)
- Seong Uk Son
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Soojin Jang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Jaewoo Lim
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Seung Beom Seo
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Taejoon Kang
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Juyeon Jung
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Seo Yeong Oh
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Sun-Woo Yoon
- Department of Biological Sciences and Biotechnology, Andong National University, Andong 36729, Republic of Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Jaejong Lee
- Department of Nano Manufacturing Technology, Korea Institute of Machinery and Materials (KIMM), Daejeon 34103, Republic of Korea
| | - Eun-Kyung Lim
- Bionanotechnology Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
- Department of Nanobiotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), Daejeon 34113, Republic of Korea
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Republic of Korea
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Kayed AE, Kutkat O, Kandeil A, Moatasim Y, El Taweel A, El Sayes M, El-Shesheny R, Aboulhoda BE, Abdeltawab NF, Kayali G, Ali MA, Ramadan MA. Comparative pathogenic potential of avian influenza H7N3 viruses isolated from wild birds in Egypt and their sensitivity to commercial antiviral drugs. Arch Virol 2023; 168:82. [PMID: 36757481 PMCID: PMC9909137 DOI: 10.1007/s00705-022-05646-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 11/03/2022] [Indexed: 02/10/2023]
Abstract
Active surveillance and studying the virological features of avian-origin influenza viruses are essential for early warning and preparedness for the next potential pandemic. During our active surveillance of avian influenza viruses in wild birds in Egypt in the period 2014-2017, multiple reassortant low-pathogenic avian influenza H7N3 viruses were isolated. In this study, we investigated and compared the infectivity, pathogenicity, and transmission of four different constellation forms of Egyptian H7N3 viruses in chickens and mice and assessed the sensitivity of these viruses to different commercial antiviral drugs in vitro. Considerable variation in virus pathogenicity was observed in mice infected with different H7N3 viruses. The mortality rate ranged from 20 to 100% in infected mice. Infected chickens showed only ocular clinical signs at three days postinfection as well as systemic viral infection in different organs. Efficient virus replication and transmission in chickens was observed within each group, indicating that these subtypes can spread easily from wild birds to poultry without prior adaptation. Mutations in the viral proteins associated with antiviral drug resistance were not detected, and all strains were sensitive to the antiviral drugs tested. In conclusion, all of the viruses studied had the ability to infect mice and chickens. H7N3 viruses circulating among wild birds in Egypt could threaten poultry production and public health.
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Affiliation(s)
- Ahmed E Kayed
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Omnia Kutkat
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Ahmed Kandeil
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Yassmin Moatasim
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Ahmed El Taweel
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Mohamed El Sayes
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Rabeh El-Shesheny
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt
| | - Basma Emad Aboulhoda
- Department of Anatomy and Embryology, Faculty of Medicine, Cairo University, Cairo, 12613, Egypt
| | - Nourtan F Abdeltawab
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt
| | | | - Mohamed A Ali
- Environmental Research Division, Centre of Scientific Excellence for Influenza Viruses, National Research Centre, Giza, 12622, Egypt.
| | - Mohammed A Ramadan
- Department of Microbiology and Immunology, Faculty of Pharmacy, Cairo University, Cairo, 12613, Egypt.
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Tan C, Wang S, Yang H, Huang Q, Li S, Liu X, Ye H, Zhang G. Understanding the interaction of nucleotides with UVC light: an insight from quantum chemical calculation-based findings. Phys Chem Chem Phys 2023; 25:3270-3278. [PMID: 36625732 DOI: 10.1039/d2cp05054d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Short-wave ultraviolet (also called UVC) irradiation is a well-adopted method of viral inactivation due to its ability to damage genetic material. A fundamental problem with the UVC inactivation method is that its mechanism of action on viruses is still unknown at the molecular level. To address this problem, herein we investigate the response mechanism of genome materials to UVC light by means of quantum chemical calculations. The spectral properties of four nucleotides, namely, adenine, cytosine, guanine, and uracil, are mainly focused on. Meanwhile, the transition state and reaction rate constant of uracil molecules are also considered to demonstrate the difficulty level of adjacent nucleotide reaction without and with UVC irradiation. The results show that the peak wavelengths are 248.7 nm, 226.1 nm (252.7 nm), 248.3 nm, and 205.8 nm (249.2 nm) for adenine, cytosine, guanine, and uracil nucleotides, respectively. Besides, the reaction rate constants of uracil molecules are 6.419 × 10-49 s-1 M-1 and 5.436 × 1011 s-1 M-1 for the ground state and excited state, respectively. Their corresponding half-life values are 1.56 × 1048 s and 1.84 × 10-12 s. This directly suggests that the molecular reaction between nucleotides is a photochemical process and the reaction without UVC irradiation almost cannot occur.
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Affiliation(s)
- Chunjian Tan
- Electronic Components, Technology and Materials, Delft University of Technology, 2628 CD Delft, The Netherlands. .,Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Shaogang Wang
- Electronic Components, Technology and Materials, Delft University of Technology, 2628 CD Delft, The Netherlands. .,Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Huiru Yang
- Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Qianming Huang
- Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Shizhen Li
- Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Xu Liu
- Electronic Components, Technology and Materials, Delft University of Technology, 2628 CD Delft, The Netherlands. .,Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Huaiyu Ye
- Engineering Research Center of Integrated Circuits for Next-Generation Communications, Ministry of Education, School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, P. R. China.
| | - Guoqi Zhang
- Electronic Components, Technology and Materials, Delft University of Technology, 2628 CD Delft, The Netherlands.
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Taskou C, Sarantaki A, Beloukas A, Georgakopoulou VΕ, Daskalakis G, Papalexis P, Lykeridou A. Knowledge and Attitudes of Healthcare Professionals Regarding Perinatal Influenza Vaccination during the COVID-19 Pandemic. Vaccines (Basel) 2023; 11:vaccines11010168. [PMID: 36680013 PMCID: PMC9863632 DOI: 10.3390/vaccines11010168] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/30/2022] [Accepted: 01/09/2023] [Indexed: 01/15/2023] Open
Abstract
Immunizations during pregnancy are an important aspect of perinatal care. Although the influenza vaccine during pregnancy is safe, vaccination rates are low. According to research data, one of the reasons for the low vaccination rates among pregnant women is that they do not receive a clear recommendation from healthcare providers. This study aims to record the knowledge and attitudes about influenza vaccination and investigate healthcare professionals' recommendations during the perinatal period. A cross-sectional study was conducted with convenience sampling in Athens, Greece. Our purposive sample included 240 midwives, Ob/Gs, and pediatricians. Data were collected using an appropriate standardized questionnaire with information about demographics, attitudes towards influenza vaccination, and knowledge about the influenza virus and peripartum vaccination. Statistical analysis was conducted using IBM SPSS-Statistics version 26.0. This study identifies the reasons for the lack of vaccine uptake including a wide range of misconceptions or lack of knowledge about influenza infection, lack of convenient access to get vaccinated, etc. Misconceptions about influenza and influenza vaccines could be improved by better education of healthcare workers. Continuing professional education for health professionals is necessary to improve the level of knowledge, prevent negative beliefs, and promote preventive and therapeutic practices.
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Affiliation(s)
- Chrysoula Taskou
- Midwifery Department, University of West Attica, 12243 Athens, Greece
- Correspondence:
| | | | - Apostolos Beloukas
- Molecular Microbiology & Immunology Laboratory, Department of Biomedical Sciences, University of West Attica, 11521 Athens, Greece
- National AIDS Reference Centre of Southern Greece, University of West Attica, 12243 Athens, Greece
| | | | - Georgios Daskalakis
- 1st Department of Obstetrics and Gynecology, Alexandra Hospital, National and Kapodistrian University of Athens, 15772 Athens, Greece
| | - Petros Papalexis
- Unit of Endocrinology, 1st Department of Internal Medicine, Laiko General Hospital, Medical School, National and Kapodistrian University of Athens, 15772 Athens, Greece
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Patel SK, Surve J, Parmar J, Ahmed K, Bui FM, Al-Zahrani FA. Recent Advances in Biosensors for Detection of COVID-19 and Other Viruses. IEEE Rev Biomed Eng 2023; 16:22-37. [PMID: 36197867 PMCID: PMC10009816 DOI: 10.1109/rbme.2022.3212038] [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: 03/21/2022] [Revised: 06/28/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022]
Abstract
This century has introduced very deadly, dangerous, and infectious diseases to humankind such as the influenza virus, Ebola virus, Zika virus, and the most infectious SARS-CoV-2 commonly known as COVID-19 and have caused epidemics and pandemics across the globe. For some of these diseases, proper medications, and vaccinations are missing and the early detection of these viruses will be critical to saving the patients. And even the vaccines are available for COVID-19, the new variants of COVID-19 such as Delta, and Omicron are spreading at large. The available virus detection techniques take a long time, are costly, and complex and some of them generates false negative or false positive that might cost patients their lives. The biosensor technique is one of the best qualified to address this difficult challenge. In this systematic review, we have summarized recent advancements in biosensor-based detection of these pandemic viruses including COVID-19. Biosensors are emerging as efficient and economical analytical diagnostic instruments for early-stage illness detection. They are highly suitable for applications related to healthcare, wearable electronics, safety, environment, military, and agriculture. We strongly believe that these insights will aid in the study and development of a new generation of adaptable virus biosensors for fellow researchers.
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Affiliation(s)
- Shobhit K. Patel
- Department of Computer EngineeringMarwadi UniversityRajkot360003India
| | - Jaymit Surve
- Department of Electrical EngineeringMarwadi UniversityRajkot360003India
| | - Juveriya Parmar
- Department of Mechanical and Materials EngineeringUniversity of Nebraska - LincolnNebraska68588USA
- Department of Electronics and Communication EngineeringMarwadi UniversityRajkot360003India
| | - Kawsar Ahmed
- Department of Electrical and Computer EngineeringUniversity of SaskatchewanSaskatoonSKS79 5A9Canada
- Group of Bio-PhotomatiX, Department of Information and Communication TechnologyMawlana Bhashani Science and Technology UniversitySantoshTangail1902Bangladesh
| | - Francis M. Bui
- Department of Electrical and Computer EngineeringUniversity of SaskatchewanSaskatoonSKS79 5A9Canada
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Chen Z, Wang J, Yuan J, Wang Z, Tu Z, Crommen J, Luo W, Guo J, Zhang T, Jiang Z. Rapid screening of neuraminidase inhibitors using an at-line nanofractionation platform involving parallel oseltamivir-sensitive/resistant neuraminidase bioassays. J Chromatogr A 2023; 1687:463693. [PMID: 36516530 DOI: 10.1016/j.chroma.2022.463693] [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: 10/13/2022] [Revised: 11/22/2022] [Accepted: 11/28/2022] [Indexed: 11/30/2022]
Abstract
In this study, an advanced at-line nanofractionation based screening platform was developed to screen potential neuraminidase inhibitors (NAIs) from Lonicera japonica Thunb by involving two parallel bioassays, for determining both oseltamivir-sensitive neuraminidase (NAS) and oseltamivir-resistant neuraminidase (NAR) inhibitory activities. 20 potential NAIs with both NAS and NAR inhibitory effects were screened from Lonicera japonica Thunb and identified by mass spectrometer, including 11 phenolic acids, 8 flavonoids and one iridoid glycoside. The proposed at-line nanofractionation based screening platform for NAIs was also used to rapidly screen nine batches of water extracts of Lonicera japonica Thunb or its similar species. Clear differences in the number and content of active components were easily observed, demonstrating that the proposed method possesses great potential for the quality control of herb medicines.
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Affiliation(s)
- Zhixu Chen
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Jincai Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Jiaming Yuan
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Zhen Wang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Zhengchao Tu
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Jacques Crommen
- Laboratory of Analytical Pharmaceutical Chemistry, Department of Pharmaceutical Sciences, CIRM, University of Liege, CHU B36, B-4000, Liege, Belgium
| | - Wenhui Luo
- Guangdong Yifang Pharmaceutical Co., Ltd., Foshan, 528000, China
| | - Jialiang Guo
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China; School of Stomatology and Medicine, Foshan University, Foshan, 528000, China.
| | - Tingting Zhang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China
| | - Zhengjin Jiang
- Institute of Traditional Chinese Medicine & Natural Products, College of Pharmacy / Guangdong Province Key Laboratory of Pharmacodynamic Constituents of TCM and New Drugs Research / International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Ministry of Education (MOE) of China, Jinan University, Guangzhou, 510632, China.
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Li J, Tian F, Zhang S, Liu SS, Kang XP, Li YD, Wei JQ, Lin W, Lei Z, Feng Y, Jiang JF, Jiang T, Tong Y. Genomic representation predicts an asymptotic host adaptation of bat coronaviruses using deep learning. Front Microbiol 2023; 14:1157608. [PMID: 37213516 PMCID: PMC10198438 DOI: 10.3389/fmicb.2023.1157608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/03/2023] [Indexed: 05/23/2023] Open
Abstract
Introduction Coronaviruses (CoVs) are naturally found in bats and can occasionally cause infection and transmission in humans and other mammals. Our study aimed to build a deep learning (DL) method to predict the adaptation of bat CoVs to other mammals. Methods The CoV genome was represented with a method of dinucleotide composition representation (DCR) for the two main viral genes, ORF1ab and Spike. DCR features were first analyzed for their distribution among adaptive hosts and then trained with a DL classifier of convolutional neural networks (CNN) to predict the adaptation of bat CoVs. Results and discussion The results demonstrated inter-host separation and intra-host clustering of DCR-represented CoVs for six host types: Artiodactyla, Carnivora, Chiroptera, Primates, Rodentia/Lagomorpha, and Suiformes. The DCR-based CNN with five host labels (without Chiroptera) predicted a dominant adaptation of bat CoVs to Artiodactyla hosts, then to Carnivora and Rodentia/Lagomorpha mammals, and later to primates. Moreover, a linear asymptotic adaptation of all CoVs (except Suiformes) from Artiodactyla to Carnivora and Rodentia/Lagomorpha and then to Primates indicates an asymptotic bats-other mammals-human adaptation. Conclusion Genomic dinucleotides represented as DCR indicate a host-specific separation, and clustering predicts a linear asymptotic adaptation shift of bat CoVs from other mammals to humans via deep learning.
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Affiliation(s)
- Jing Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Fengjuan Tian
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Sen Zhang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Shun-Shuai Liu
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Xiao-Ping Kang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Ya-Dan Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Jun-Qing Wei
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Wei Lin
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Zhongyi Lei
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
| | - Ye Feng
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
| | - Jia-Fu Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
- Jia-Fu Jiang
| | - Tao Jiang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, AMMS, Beijing, China
- Tao Jiang
| | - Yigang Tong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering (BAIC-SM), College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, China
- *Correspondence: Yigang Tong
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Stadejek W, Chiers K, Van Reeth K. Infectivity and transmissibility of an avian H3N1 influenza virus in pigs. Vet Res 2023; 54:4. [PMID: 36694192 PMCID: PMC9872060 DOI: 10.1186/s13567-022-01133-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 12/05/2022] [Indexed: 01/26/2023] Open
Abstract
In 2019 a low pathogenic H3N1 avian influenza virus (AIV) caused an outbreak in Belgian poultry farms, characterized by an unusually high mortality in chickens. Influenza A viruses of the H1 and H3 subtype can infect pigs and become established in swine populations. Therefore, the H3N1 epizootic raised concern about AIV transmission to pigs and from pigs to humans. Here, we assessed the replication efficiency of this virus in explants of the porcine respiratory tract and in pigs, using virus titration and/or RT-qPCR. We also examined transmission from directly, intranasally inoculated pigs to contact pigs. The H3N1 AIV replicated to moderate titers in explants of the bronchioles and lungs, but not in the nasal mucosa or trachea. In the pig infection study, infectious virus was only detected in a few lung samples collected between 1 and 3 days post-inoculation. Virus titers were between 1.7 and 4.8 log10 TCID50. In line with the ex vivo experiment, no virus was isolated from the upper respiratory tract of pigs. In the transmission experiment, we could not detect virus transmission from directly inoculated to contact pigs. An increase in serum antibody titers was observed only in the inoculated pigs. We conclude that the porcine respiratory tract tissue explants can be a useful tool to assess the replication efficiency of AIVs in pigs. The H3N1 AIV examined here is unlikely to pose a risk to swine populations. However, continuous risk assessment studies of emerging AIVs in pigs are necessary, since different virus strains will have different genotypic and phenotypic traits.
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Affiliation(s)
- Wojciech Stadejek
- grid.5342.00000 0001 2069 7798Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Koen Chiers
- grid.5342.00000 0001 2069 7798Laboratory of Veterinary Pathology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
| | - Kristien Van Reeth
- grid.5342.00000 0001 2069 7798Laboratory of Virology, Department of Translational Physiology, Infectiology and Public Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium
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Thromboembolic Events in Patients with Influenza: A Scoping Review. Viruses 2022; 14:v14122817. [PMID: 36560821 PMCID: PMC9785394 DOI: 10.3390/v14122817] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Influenza is an acute respiratory infection that usually causes a short-term and self-limiting illness. However, in high-risk populations, this can lead to several complications, with an increase in mortality. Aside from the well-known extrapulmonary complications, several studies have investigated the relationship between influenza and acute cardio and cerebrovascular events. Reviews of the thromboembolic complications associated with influenza are lacking. OBJECTIVES the study aims to conduct a scoping review to analyze the epidemiological and clinical characteristics of patients suffering from influenza and thromboembolic complications. MATERIALS AND METHODS A computerized search of historical published cases using PubMed and the terms "influenza" or "flu" and "thrombosis", "embolism", "thromboembolism", "stroke", or "infarct" for the last twenty-five years was conducted. Only articles reporting detailed data on patients with thromboembolic complications of laboratory-confirmed influenza were considered eligible for inclusion in the scoping review. RESULTS Fifty-eight cases with laboratory documented influenza A or B and a related intravascular thrombosis were retrieved. Their characteristics were analyzed along with those of a patient who motivated our search. The localizations of thromboembolic events were pulmonary embolism 21/58 (36.2%), DVT 12/58 (20.6%), DVT and pulmonary embolism 3/58 (5.1%), acute ischemic stroke 11/58 (18.9%), arterial thrombosis 4/58 (6.8%), and acute myocardial infarction 5/58 (8.6%). DISCUSSION Our findings are important in clarifying which thromboembolic complications are more frequent in adults and children with influenza. Symptoms of pulmonary embolism and influenza can be very similar, so a careful clinical evaluation is required for proper patient management, possible instrumental deepening, and appropriate pharmacological interventions, especially for patients with respiratory failure.
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Ghosh A, Ghosh B, Parihar N, Ilaweibaphyrnai M, Panda SR, Alexander A, Chella N, Murty U, Naidu V, Kumar G J, Pemmaraju DB. Nutraceutical prospects of Houttuynia cordata against the infectious viruses. FOOD BIOSCI 2022; 50:101977. [PMID: 36059903 PMCID: PMC9423882 DOI: 10.1016/j.fbio.2022.101977] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 08/04/2022] [Accepted: 08/11/2022] [Indexed: 11/17/2022]
Abstract
The novel enveloped β-coronavirus SARS-CoV-2 (COVID-19) has offered a surprising health challenge all over the world. It develops severe pneumonia leading to acute respiratory distress syndrome (ARDS). Like SARS-COV-2, other encapsulated viruses like HIV, HSV, and influenza have also offered a similar challenge in the past. In this regard, many antiviral drugs are being explored with varying degrees of success to combat the associated pathological conditions. Therefore, upon scientific validation & development, these antiviral phytochemicals can attain a futuristic nutraceutical prospect in managing different encapsulated viruses. Houttuynia cordata (HC) is widely reported for activities such as antioxidant, anti-inflammatory, and antiviral properties. The major antiviral bioactive components of HC include essential oils (methyl n-nonyl ketone, lauryl aldehyde, capryl aldehyde), flavonoids (quercetin, rutin, hyperin, quercitrin, isoquercitrin), and alkaloids (norcepharadione B) & polysaccharides. HC can further be explored as a potential nutraceutical agent in the therapy of encapsulated viruses like HIV, HSV, and influenza. The review listed various conventional and green technologies that are being employed to extract potent phytochemicals with diverse activities from the HC. It was indicated that HC also inhibited molecular targets like 3C-like protease (3CLPRO) and RNA-dependent RNA polymerase (RdRp) of COVID-19 by blocking viral RNA synthesis and replication. Antioxidant and hepatoprotective effects of HC have been evident in impeding complications from marketed drugs during antiviral therapies. The use of HC as a nutraceutical is localized within some parts of Southeast Asia. Further technological advances can establish it as a nutraceutical-based functional food against pathogenic enveloped viruses like COVID 19.
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Affiliation(s)
- Aparajita Ghosh
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Bijoyani Ghosh
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Nidhi Parihar
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Myrthong Ilaweibaphyrnai
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Samir R Panda
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Amit Alexander
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Naveen Chella
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Usn Murty
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Vgm Naidu
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Jagadeesh Kumar G
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
| | - Deepak B Pemmaraju
- Department of Pharmacology & Toxicology, National Institute of Pharmaceutical Education and Research Guwahati, Assam, 781101, India
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Chavda V, Bezbaruah R, Kalita T, Sarma A, Devi JR, Bania R, Apostolopoulos V. Variant influenza: connecting the missing dots. Expert Rev Anti Infect Ther 2022; 20:1567-1585. [PMID: 36346383 DOI: 10.1080/14787210.2022.2144231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND In June 2009, the World Health Organization declared a new pandemic, the 2009 swine influenza pandemic (swine flu). The symptoms of the swine flu pandemic causing strain were comparable to most of the symptoms noted by seasonal influenza. AREA COVERED Zoonotic viruses that caused the swine flu pandemic and its preventive measures. EXPERT OPINION As per Centers for Disease Control and Prevention (CDC), the clinical manifestations in humans produced by the 2009 H1N1 'swine flu' virus were equivalent to the manifestations caused by related flu strains. The H1N1 vaccination was the most successful prophylactic measure since it prevented the virus from spreading and reduced the intensity and consequences of the pandemic. Despite the availability of therapeutics, the ongoing evolution and appearance of new strains have made it difficult to develop effective vaccines and therapies. Currently, the CDC recommends yearly flu immunization for those aged 6 months and above. The lessons learned from the A/2009/H1N1 pandemic in 2009 indicated that readiness of mankind toward new illnesses caused by mutant viral subtypes that leap from animals to people must be maintained.
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Affiliation(s)
- Vivek Chavda
- Department of Pharmaceutics and Pharmaceutical Technology, L M College of Pharmacy, Ahmedabad, India
| | - Rajashri Bezbaruah
- Department of Pharmaceutical Sciences, Faculty of Science and Engineering, Dibrugarh University, Dibrugarh, India
| | - Tutumoni Kalita
- Department of Pharmaceutical Chemistry, Regional College of Pharmaceutical Sciences, RIPT Group of Institution, Sonapur, Guwahati, India
| | - Anupam Sarma
- Department of Pharmaceutics, Girijananda Chowdhury Institute of Pharmaceutical Science, Hatkhowapara, Azara, Guwahati, Assam, India
| | - Juti Rani Devi
- NETES Institute of Pharmaceutical Science, Mirza, Guwahati, India
| | - Ratnali Bania
- Pratiksha Institute of Pharmaceutical Sciences, India
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Stafford E, Kot M. Optimal reduced-mixing for an SIS infectious-disease model. JOURNAL OF BIOLOGICAL DYNAMICS 2022; 16:746-765. [PMID: 36415142 DOI: 10.1080/17513758.2022.2148764] [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: 02/24/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
Which reduced-mixing strategy maximizes economic output during a disease outbreak? To answer this question, we formulate an optimal-control problem that maximizes the difference between revenue, due to healthy individuals, and medical costs, associated with infective individuals, for SIS disease dynamics. The control variable is the level of mixing in the population, which influences both revenue and the spread of the disease. Using Pontryagin's maximum principle, we find a closed-form solution for our problem. We explore an example of our problem with parameters for the transmission of Staphylococcus aureus in dairy cows, and we perform sensitivity analyses to determine how model parameters affect optimal strategies. We find that less mixing is preferable when the transmission rate is high, the per-capita recovery rate is low, or when the revenue parameter is much smaller than the cost parameter.
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Affiliation(s)
- Erin Stafford
- Department of Applied Mathematics, University of Washington, Seattle, WA, USA
| | - Mark Kot
- Department of Applied Mathematics, University of Washington, Seattle, WA, USA
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Aleith J, Brendel M, Weipert E, Müller M, Schultz D, Müller-Hilke B. Influenza A Virus Exacerbates Group A Streptococcus Infection and Thwarts Anti-Bacterial Inflammatory Responses in Murine Macrophages. Pathogens 2022; 11:1320. [PMID: 36365071 PMCID: PMC9699311 DOI: 10.3390/pathogens11111320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 09/30/2023] Open
Abstract
Seasonal influenza epidemics pose a considerable hazard for global health. In the past decades, accumulating evidence revealed that influenza A virus (IAV) renders the host vulnerable to bacterial superinfections which in turn are a major cause for morbidity and mortality. However, whether the impact of influenza on anti-bacterial innate immunity is restricted to the vicinity of the lung or systemically extends to remote sites is underexplored. We therefore sought to investigate intranasal infection of adult C57BL/6J mice with IAV H1N1 in combination with bacteremia elicited by intravenous application of Group A Streptococcus (GAS). Co-infection in vivo was supplemented in vitro by challenging murine bone marrow derived macrophages and exploring gene expression and cytokine secretion. Our results show that viral infection of mice caused mild disease and induced the depletion of CCL2 in the periphery. Influenza preceding GAS infection promoted the occurrence of paw edemas and was accompanied by exacerbated disease scores. In vitro co-infection of macrophages led to significantly elevated expression of TLR2 and CD80 compared to bacterial mono-infection, whereas CD163 and CD206 were downregulated. The GAS-inducible upregulation of inflammatory genes, such as Nos2, as well as the secretion of TNFα and IL-1β were notably reduced or even abrogated following co-infection. Our results indicate that IAV primes an innate immune layout that is inadequately equipped for bacterial clearance.
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Affiliation(s)
- Johann Aleith
- Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18057 Rostock, Germany
| | - Maria Brendel
- Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18057 Rostock, Germany
| | - Erik Weipert
- Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18057 Rostock, Germany
| | - Michael Müller
- Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18057 Rostock, Germany
| | - Daniel Schultz
- Institute of Biochemistry, University of Greifswald, 17489 Greifswald, Germany
| | - Ko-Infekt Study Group
- Institute of Biochemistry, University of Greifswald, 17489 Greifswald, Germany
- Institute of Immunology, Friedrich-Loeffler-Institut, 17493 Greifswald-Insel Riems, Germany
- Institute of Medical Microbiology, Virology and Hygiene, Rostock University Medical Center, 18057 Rostock, Germany
| | - Brigitte Müller-Hilke
- Core Facility for Cell Sorting and Cell Analysis, Rostock University Medical Center, 18057 Rostock, Germany
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Interspecies Transmission from Pigs to Ferrets of Antigenically Distinct Swine H1 Influenza A Viruses with Reduced Reactivity to Candidate Vaccine Virus Antisera as Measures of Relative Zoonotic Risk. Viruses 2022; 14:v14112398. [PMID: 36366493 PMCID: PMC9698830 DOI: 10.3390/v14112398] [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: 09/28/2022] [Revised: 10/24/2022] [Accepted: 10/26/2022] [Indexed: 01/31/2023] Open
Abstract
During the last decade, endemic swine H1 influenza A viruses (IAV) from six different genetic clades of the hemagglutinin gene caused zoonotic infections in humans. The majority of zoonotic events with swine IAV were restricted to a single case with no subsequent transmission. However, repeated introduction of human-seasonal H1N1, continual reassortment between endemic swine IAV, and subsequent drift in the swine host resulted in highly diverse swine IAV with human-origin genes that may become a risk to the human population. To prepare for the potential of a future swine-origin IAV pandemic in humans, public health laboratories selected candidate vaccine viruses (CVV) for use as vaccine seed strains. To assess the pandemic risk of contemporary US swine H1N1 or H1N2 strains, we quantified the genetic diversity of swine H1 HA genes, and identified representative strains from each circulating clade. We then characterized the representative swine IAV against human seasonal vaccine and CVV strains using ferret antisera in hemagglutination inhibition assays (HI). HI assays revealed that 1A.3.3.2 (pdm09) and 1B.2.1 (delta-2) demonstrated strong cross reactivity to human seasonal vaccines or CVVs. However, swine IAV from three clades that represent more than 50% of the detected swine IAVs in the USA showed significant reduction in cross-reactivity compared to the closest CVV virus: 1A.1.1.3 (alpha-deletion), 1A.3.3.3-clade 3 (gamma), and 1B.2.2.1 (delta-1a). Representative viruses from these three clades were further characterized in a pig-to-ferret transmission model and shown to exhibit variable transmission efficiency. Our data prioritize specific genotypes of swine H1N1 and H1N2 to further investigate in the risk they pose to the human population.
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Chen J, Zhou J, Peng Y, Xie Y, Xiao Y. Aptamers: A prospective tool for infectious diseases diagnosis. J Clin Lab Anal 2022; 36:e24725. [PMID: 36245423 PMCID: PMC9701868 DOI: 10.1002/jcla.24725] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 09/21/2022] [Accepted: 09/22/2022] [Indexed: 12/05/2022] Open
Abstract
It is well known that people's health is seriously threatened by various pathogens (such as Mycobacterium tuberculosis, Treponema pallidum, Novel coronavirus, HIV, Mucor, etc.), which leads to heavy socioeconomic burdens. Therefore, early and accurate pathogen diagnosis is essential for timely and effective therapies. Up to now, diagnosing human contagious diseases at molecule and nano levels is remarkably difficult owing to insufficient valid probes when it comes to determining the biological markers of pathogens. Aptamers are a set of high‐specificity and high‐sensitivity plastic oligonucleotides screened in vitro via the selective expansion of ligands by exponential enrichment (SELEX). With the advent of aptamer‐based technologies, their merits have aroused mounting academic interest. In recent years, as new detection and treatment tools, nucleic acid aptamers have been extensively utilized in the field of biomedicine, such as pathogen detection, new drug development, clinical diagnosis, nanotechnology, etc. However, the traditional SELEX method is cumbersome and has a long screening cycle, and it takes several months to screen out aptamers with high specificity. With the persistent development of SELEX‐based aptamer screening technologies, the application scenarios of aptamers have become more and more extensive. The present research briefly reviews the research progress of nucleic acid aptamers in the field of biomedicine, especially in the diagnosis of contagious diseases.
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Affiliation(s)
- Jiayi Chen
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Jiahuan Zhou
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yunchi Peng
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yafeng Xie
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
| | - Yongjian Xiao
- Department of Clinical Laboratory, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan, China
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Zhang Z, Li S, Zhu X, Hou J, Zhang H, Zhao B, Tian Z. Increased genetic variation of A(H3N2) virus from influenza surveillance at the end of the 2016/2017 season for Shanghai port, China. Sci Rep 2022; 12:17089. [PMID: 36224196 PMCID: PMC9556717 DOI: 10.1038/s41598-022-19228-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2022] [Accepted: 08/25/2022] [Indexed: 01/04/2023] Open
Abstract
Influenza A(H3N2) virus exhibited complex seasonal patterns to evade pre-existing antibodies, resulting in changes in the antigenicity of the viron surface protein hemagglutinin (HA). To monitor the currently imported influenza viruses as well as to assess the capacity of health emergencies at the Shanghai port, we collected respiratory specimens of passengers from different countries and regions including some of Europe with influenza-like illness at the Shanghai port during 2016/2017, examined amino acid substitutions, and calculated the perfect-match vaccine efficacy using the p epitope model. Phylogenetic analysis of the HA genes revealed that influenza A(H3N2) viruses belonging to eight subclades were detected, and three amino acid substitutions in the subclade 3C.2a.4 were also added. Besides, two epidemic influenza virus strains were found in the 2016/2017 winter and 2016 summer. The results of lower predicted vaccine effectiveness in summer suggest that the imported A(H3N2) strains were not a good match for the A/Hong Kong/4801/2014 vaccine strain since the summer of 2017. Therefore, the Shanghai Port might stop the risk of the international spread of influenza for the first time, and curb the entry of A(H3N2) from overseas at the earliest stage of a probable influenza pandemic.
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Affiliation(s)
- Zilong Zhang
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Shenwei Li
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Xiaolin Zhu
- Shanghai BioGerm Medical Biotechnology Co., Ltd, Shanghai, 201401 China
| | - Jian Hou
- Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Hong Zhang
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
| | - Baihui Zhao
- grid.16821.3c0000 0004 0368 8293Bio-X Life Science Research Center, Shanghai Jiao Tong University, Shanghai, 200030 China ,Shanghai BioGerm Medical Biotechnology Co., Ltd, Shanghai, 201401 China
| | - Zhengan Tian
- Shanghai International Travel Healthcare Center, Shanghai, 200335 China ,Shanghai Customs District P.R.China, Shanghai, 200135 China
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