1
|
Koziol-White C, Gebski E, Cao G, Panettieri RA. Precision cut lung slices: an integrated ex vivo model for studying lung physiology, pharmacology, disease pathogenesis and drug discovery. Respir Res 2024; 25:231. [PMID: 38824592 PMCID: PMC11144351 DOI: 10.1186/s12931-024-02855-6] [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: 04/08/2024] [Accepted: 05/18/2024] [Indexed: 06/03/2024] Open
Abstract
Precision Cut Lung Slices (PCLS) have emerged as a sophisticated and physiologically relevant ex vivo model for studying the intricacies of lung diseases, including fibrosis, injury, repair, and host defense mechanisms. This innovative methodology presents a unique opportunity to bridge the gap between traditional in vitro cell cultures and in vivo animal models, offering researchers a more accurate representation of the intricate microenvironment of the lung. PCLS require the precise sectioning of lung tissue to maintain its structural and functional integrity. These thin slices serve as invaluable tools for various research endeavors, particularly in the realm of airway diseases. By providing a controlled microenvironment, precision-cut lung slices empower researchers to dissect and comprehend the multifaceted interactions and responses within lung tissue, thereby advancing our understanding of pulmonary pathophysiology.
Collapse
Affiliation(s)
- Cynthia Koziol-White
- Rutgers Institute for Translational Medicine and Science, The State University of NJ, 08901, Rutgers, New Brunswick, NJ, USA.
| | - Eric Gebski
- Rutgers Institute for Translational Medicine and Science, The State University of NJ, 08901, Rutgers, New Brunswick, NJ, USA
| | - Gaoyaun Cao
- Rutgers Institute for Translational Medicine and Science, The State University of NJ, 08901, Rutgers, New Brunswick, NJ, USA
| | - Reynold A Panettieri
- Rutgers Institute for Translational Medicine and Science, The State University of NJ, 08901, Rutgers, New Brunswick, NJ, USA
| |
Collapse
|
2
|
Saglam-Metiner P, Yildiz-Ozturk E, Tetik-Vardarli A, Cicek C, Goksel O, Goksel T, Tezcanli B, Yesil-Celiktas O. Organotypic lung tissue culture as a preclinical model to study host- influenza A viral infection: A case for repurposing of nafamostat mesylate. Tissue Cell 2024; 87:102319. [PMID: 38359705 DOI: 10.1016/j.tice.2024.102319] [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: 09/18/2023] [Revised: 01/11/2024] [Accepted: 01/29/2024] [Indexed: 02/17/2024]
Abstract
Reliable and effective models for recapitulation of host-pathogen interactions are imperative for the discovery of potential therapeutics. Ex vivo models can fulfill these requirements as the multicellular native environment in the tissue is preserved and be utilized for toxicology, vaccine, infection and drug efficacy studies due to the presence of immune cells. Drug repurposing involves the identification of new applications for already approved drugs that are not related to the prime medical indication and emerged as a strategy to cope with slow pace of drug discovery due to high costs and necessary phases to reach the patients. Within the scope of the study, broad-spectrum serine protease inhibitor nafamostat mesylate was repurposed to inhibit influenza A infection and evaluated by a translational ex vivo organotypic model, in which human organ-level responses can be achieved in preclinical safety studies of potential antiviral agents, along with in in vitro lung airway culture. The safe doses were determined as 10 µM for in vitro, whereas 22 µM for ex vivo to be applied for evaluation of host-pathogen interactions, which reduced virus infectivity, increased cell/tissue viability, and protected total protein content by reducing cell death with the inflammatory response. When the gene expression levels of specific pro-inflammatory, anti-inflammatory and cell surface markers involved in antiviral responses were examined, the significant inflammatory response represented by highly elevated mRNA gene expression levels of cytokines and chemokines combined with CDH5 downregulated by 5.1-fold supported the antiviral efficacy of NM and usability of ex vivo model as a preclinical infection model.
Collapse
Affiliation(s)
- Pelin Saglam-Metiner
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 Izmir, Turkey; Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey
| | - Ece Yildiz-Ozturk
- Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey; Department of Food Processing, Food Technology Programme, Yasar University, 35100 Izmir, Turkey
| | - Aslı Tetik-Vardarli
- Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey; Department of Medical Biology, Faculty of Medicine, Ege University, Izmir 35100, Turkey
| | - Candan Cicek
- Department of Medical Microbiology, Faculty of Medicine, Ege University, Izmir 35100, Turkey
| | - Ozlem Goksel
- Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey; Department of Pulmonary Medicine, Division of Allergy and Immunology, Faculty of Medicine, Ege University, Izmir 35100, Turkey
| | - Tuncay Goksel
- Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey; Department of Pulmonary Medicine, Division of Allergy and Immunology, Faculty of Medicine, Ege University, Izmir 35100, Turkey
| | | | - Ozlem Yesil-Celiktas
- Department of Bioengineering, Faculty of Engineering, Ege University, 35100 Izmir, Turkey; Translational Pulmonary Research Center (EgeSAM), Ege University, Izmir 35100, Turkey.
| |
Collapse
|
3
|
Weldearegay YB, Brogaard L, Nerlich A, Schaaf D, Heegaard PMH, Valentin-Weigand P. Transcriptional Host Responses to Infection with Streptococcus suis in a Porcine Precision-Cut Lung Slice Model: Between-Strain Differences Suggest Association with Virulence Potential. Pathogens 2023; 13:4. [PMID: 38276150 PMCID: PMC10820225 DOI: 10.3390/pathogens13010004] [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: 11/08/2023] [Revised: 12/06/2023] [Accepted: 12/15/2023] [Indexed: 01/27/2024] Open
Abstract
Streptococcus suis is a porcine and zoonotic pathogen in the upper respiratory tract, expressing different capsular serotypes and virulence-associated factors. Given its genomic and phenotypic diversity, the virulence potential of S. suis cannot be attributed to a single factor. Since strong inflammatory response is a hallmark of S. suis infection, the objective of this study was to investigate the differences in transcriptional host responses to two serotype 2 and one serotype 9 strains. Both serotypes are frequently found in clinical isolates. We infected porcine precision-cut lung slices (PCLSs) with two serotype 2 strains of high (strain S10) and low (strain T15) virulence, and a serotype 9 strain 8067 of moderate virulence. We observed higher expression of inflammation-related genes during early infection with strains T15 and 8067, in contrast to infection with strain 10, whose expression peaked late. In addition, bacterial gene expression from infected PCLSs revealed differences, mainly of metabolism-related and certain virulence-associated bacterial genes amongst these strains. We conclude that the strain- and time-dependent induction of genes involved in innate immune response might reflect clinical outcomes of infection in vivo, implying rapid control of infection with less virulent strains compared to the highly virulent strain S10.
Collapse
Affiliation(s)
- Yenehiwot Berhanu Weldearegay
- Institute for Microbiology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, 30173 Hannover, Germany; (Y.B.W.); (A.N.); (D.S.)
| | - Louise Brogaard
- Department of Biotechnology and Biomedicine, Section for Protein Science and Biotherapeutics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark; (L.B.); (P.M.H.H.)
| | - Andreas Nerlich
- Institute for Microbiology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, 30173 Hannover, Germany; (Y.B.W.); (A.N.); (D.S.)
- Department of Veterinary Medicine, Veterinary Centre for Resistance Research (TZR), Freie Universität Berlin, 14163 Berlin, Germany
| | - Désirée Schaaf
- Institute for Microbiology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, 30173 Hannover, Germany; (Y.B.W.); (A.N.); (D.S.)
| | - Peter M. H. Heegaard
- Department of Biotechnology and Biomedicine, Section for Protein Science and Biotherapeutics, Technical University of Denmark, 2800 Kongens Lyngby, Denmark; (L.B.); (P.M.H.H.)
- Department of Health Technology, Experimental & Translational Immunology, Technical University of Denmark, 2800 Kongens Lyngby, Denmark
| | - Peter Valentin-Weigand
- Institute for Microbiology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, 30173 Hannover, Germany; (Y.B.W.); (A.N.); (D.S.)
| |
Collapse
|
4
|
Qin L, Meng F, He H, Li S, Zhang H, Sun Y, Zhang W, An T, Cai X, Wang S. Inflammation plays a critical role in damage to the bronchiolar epithelium induced by Trueperella pyogenes in vitro and in vivo. Infect Immun 2023; 91:e0027323. [PMID: 37929972 PMCID: PMC10714949 DOI: 10.1128/iai.00273-23] [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: 07/21/2023] [Accepted: 09/26/2023] [Indexed: 11/07/2023] Open
Abstract
Trueperella pyogenes can cause severe pulmonary disease in swine, but the mechanism of pathogenesis is not well defined. T. pyogenes-induced damage to porcine bronchial epithelial cells (PBECs), porcine precision-cut lung slices (PCLS), and respiratory epithelium of mice remains unknown. In this study, we used T. pyogenes 20121 to infect PBECs in air-liquid interface conditions and porcine PCLS. T. pyogenes could adhere to, colonize, and induce cytotoxic effect on PBECs and the luminal surface of bronchi in PCLS, which damaged the bronchiolar epithelium. Moreover, bronchiolar epithelial cells showed extensive degeneration in the lungs of infected mice. Furthermore, western blot showed that the NOD-like receptor (NLR)/C-terminal caspase recruitment domain (ASC)/caspase-1 axis and nuclear factor-kappa B pathway were involved in inflammation in PCLS and lungs of mice, which also confirms that porcine PCLS provide a platform to analyze the pulmonary immune response. Meanwhile, the levels of p-c-Jun N-terminal kinase, p-extracellular signal-regulated kinase, and p-protein kinase B (AKT) were increased significantly, which indicated the mitogen-activated protein kinase and Akt pathways were also involved in inflammation in T. pyogenes-infected mice. In addition, we used T. pyogenes 20121 to infect tumor necrosis factor-alpha (tnf-α-/-) mice, and the results indicated that apoptosis and injury in respiratory epithelium of infected tnf-α-/- mice were alleviated. Thus, the pro-inflammatory cytokine TNF-α played a role in apoptosis and the respiratory epithelium injury in mouse lungs. Collectively, our study provides insight into the inflammatory injury induced by T. pyogenes and suggests that blocking NLR may be a potential therapeutic strategy against T. pyogenes infection.
Collapse
Affiliation(s)
- Lei Qin
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
- Laboratory Animal Centre, Qiqihar Medical University, Qiqihar, China
| | - Fandan Meng
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Haijuan He
- Institute of Animal Husbandry, Heilongjiang Academy of Agriculture Sciences, Harbin, Heilongjiang, China
| | - Siqi Li
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Hongliang Zhang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Yuan Sun
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Wenlong Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, Heilongjiang, China
| | - Tongqing An
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
| | - Xuehui Cai
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
- Heilongjiang Research Center for Veterinary Biopharmaceutical Technology, Harbin, China
| | - Shujie Wang
- State Key Laboratory for Animal Disease Control and Prevention, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, Heilongjiang, China
- Heilongjiang Provincial Key Laboratory of Veterinary Immunology, Harbin, China
| |
Collapse
|
5
|
Chludzinski E, Ciurkiewicz M, Stoff M, Klemens J, Krüger J, Shin DL, Herrler G, Beineke A. Canine Distemper Virus Alters Defense Responses in an Ex Vivo Model of Pulmonary Infection. Viruses 2023; 15:v15040834. [PMID: 37112814 PMCID: PMC10144441 DOI: 10.3390/v15040834] [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: 02/27/2023] [Revised: 03/18/2023] [Accepted: 03/22/2023] [Indexed: 04/29/2023] Open
Abstract
Canine distemper virus (CDV), belonging to the genus Morbillivirus, is a highly contagious pathogen. It is infectious in a wide range of host species, including domestic and wildlife carnivores, and causes severe systemic disease with involvement of the respiratory tract. In the present study, canine precision-cut lung slices (PCLSs) were infected with CDV (strain R252) to investigate temporospatial viral loads, cell tropism, ciliary activity, and local immune responses during early infection ex vivo. Progressive viral replication was observed during the infection period in histiocytic and, to a lesser extent, epithelial cells. CDV-infected cells were predominantly located within the bronchial subepithelial tissue. Ciliary activity was reduced in CDV-infected PCLSs, while viability remained unchanged when compared to controls. MHC-II expression was increased in the bronchial epithelium on day three postinfection. Elevated levels of anti-inflammatory cytokines (interleukin-10 and transforming growth factor-β) were observed in CDV-infected PCLSs on day one postinfection. In conclusion, the present study demonstrates that PCLSs are permissive for CDV. The model reveals an impaired ciliary function and an anti-inflammatory cytokine response, potentially fostering viral replication in the lung during the early phase of canine distemper.
Collapse
Affiliation(s)
- Elisa Chludzinski
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Center for Systems Neuroscience (ZSN), 30559 Hannover, Germany
| | - Małgorzata Ciurkiewicz
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Melanie Stoff
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Johanna Klemens
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Johannes Krüger
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Dai-Lun Shin
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Department of Veterinary Medicine, College of Veterinary Medicine, National Chung Hsing University, Taichung 402, Taiwan
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, 30559 Hannover, Germany
- Center for Systems Neuroscience (ZSN), 30559 Hannover, Germany
| |
Collapse
|
6
|
Su A, Yan M, Pavasutthipaisit S, Wicke KD, Grassl GA, Beineke A, Felmy F, Schmidt S, Esser KH, Becher P, Herrler G. Infection Studies with Airway Organoids from Carollia perspicillata Indicate That the Respiratory Epithelium Is Not a Barrier for Interspecies Transmission of Influenza Viruses. Microbiol Spectr 2023; 11:e0309822. [PMID: 36916937 PMCID: PMC10100918 DOI: 10.1128/spectrum.03098-22] [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: 08/18/2022] [Accepted: 02/11/2023] [Indexed: 03/16/2023] Open
Abstract
Bats are a natural reservoir for many viruses and are considered to play an important role in the interspecies transmission of viruses. To analyze the susceptibility of bat airway cells to infection by viruses of other mammalian species, we developed an airway organoid culture model derived from airways of Carollia perspicillata. Application of specific antibodies for fluorescent staining indicated that the cell composition of organoids resembled those of bat trachea and lungs as determined by immunohistochemistry. Infection studies indicated that Carollia perspicillata bat airway organoids (AOs) from the trachea or the lung are highly susceptible to infection by two different porcine influenza A viruses. The bat AOs were also used to develop an air-liquid interface (ALI) culture system of filter-grown epithelial cells. Infection of these cells showed the same characteristics, including lower virulence and enhanced replication and release of the H1N1/2006 virus compared to infection with H3N2/2007. These observations agreed with the results obtained by infection of porcine ALI cultures with these two virus strains. Interestingly, lectin staining indicated that bat airway cells only contain a small amount of alpha 2,6-linked sialic acid, the preferred receptor determinant for mammalian influenza A viruses. In contrast, large amounts of alpha 2,3-linked sialic acid, the preferred receptor determinant for avian influenza viruses, are present in bat airway epithelial cells. Therefore, bat airway cells may be susceptible not only to mammalian but also to avian influenza viruses. Our culture models, which can be extended to other parts of the airways and to other species, provide a promising tool to analyze virus infectivity and the transmission of viruses both from bats to other species and from other species to bats. IMPORTANCE We developed an organoid culture system derived from the airways of the bat species Carollia perspicillata. Using this cell system, we showed that the airway epithelium of these bats is highly susceptible to infection by influenza viruses of other mammalian species and thus is not a barrier for interspecies transmission. These organoids provide an almost unlimited supply of airway epithelial cells that can be used to generate well-differentiated epithelial cells and perform infection studies. The establishment of the organoid model required only three animals, and can be extended to other epithelia (nose, intestine) as well as to other species (bat and other animal species). Therefore, organoids promise to be a valuable tool for future zoonosis research on the interspecies transmission of viruses (e.g., bat → intermediate host → human).
Collapse
Affiliation(s)
- Ang Su
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Miaomiao Yan
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Suvarin Pavasutthipaisit
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
- Department of Pathology, Faculty of Veterinary Medicine, Mahanakorn University of Technology, Bangkok, Thailand
| | - Kathrin D. Wicke
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Guntram A. Grassl
- Institute of Medical Microbiology and Hospital Epidemiology, Hannover Medical School and German Center for Infection Research (DZIF), Hannover, Germany
| | - Andreas Beineke
- Department of Pathology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
- Center for Systems Neuroscience, Hannover, Germany
| | - Felix Felmy
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Sabine Schmidt
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Karl-Heinz Esser
- Institute of Zoology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Paul Becher
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Georg Herrler
- Department of Infectious Diseases, Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| |
Collapse
|
7
|
Runft S, Färber I, Krüger J, Krüger N, Armando F, Rocha C, Pöhlmann S, Burigk L, Leitzen E, Ciurkiewicz M, Braun A, Schneider D, Baumgärtner L, Freisleben B, Baumgärtner W. Alternatives to animal models and their application in the discovery of species susceptibility to SARS-CoV-2 and other respiratory infectious pathogens: A review. Vet Pathol 2022; 59:565-577. [PMID: 35130766 DOI: 10.1177/03009858211073678] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The emergence of the coronavirus disease 2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) inspired rapid research efforts targeting the host range, pathogenesis and transmission mechanisms, and the development of antiviral strategies. Genetically modified mice, rhesus macaques, ferrets, and Syrian golden hamsters have been frequently used in studies of pathogenesis and efficacy of antiviral compounds and vaccines. However, alternatives to in vivo experiments, such as immortalized cell lines, primary respiratory epithelial cells cultured at an air-liquid interface, stem/progenitor cell-derived organoids, or tissue explants, have also been used for isolation of SARS-CoV-2, investigation of cytopathic effects, and pathogen-host interactions. Moreover, initial proof-of-concept studies for testing therapeutic agents can be performed with these tools, showing that animal-sparing cell culture methods could significantly reduce the need for animal models in the future, following the 3R principles of replace, reduce, and refine. So far, only few studies using animal-derived primary cells or tissues have been conducted in SARS-CoV-2 research, although natural infection has been shown to occur in several animal species. Therefore, the need for in-depth investigations on possible interspecies transmission routes and differences in susceptibility to SARS-CoV-2 is urgent. This review gives an overview of studies employing alternative culture systems like primary cell cultures, tissue explants, or organoids for investigations of the pathophysiology and reverse zoonotic potential of SARS-CoV-2 in animals. In addition, future possibilities of SARS-CoV-2 research in animals, including previously neglected methods like the use of precision-cut lung slices, will be outlined.
Collapse
Affiliation(s)
- Sandra Runft
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Iris Färber
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Johannes Krüger
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Nadine Krüger
- German Primate Center-Leibniz Institute for Primate Research, Göttingen, Germany
| | - Federico Armando
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Cheila Rocha
- German Primate Center-Leibniz Institute for Primate Research, Göttingen, Germany
| | - Stefan Pöhlmann
- German Primate Center-Leibniz Institute for Primate Research, Göttingen, Germany
| | - Laura Burigk
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Eva Leitzen
- University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | | | - Armin Braun
- Fraunhofer Institute for Toxicology and Experimental Medicine, Hannover, Germany
- Hannover Medical School, Hannover, Germany
| | | | | | | | | |
Collapse
|
8
|
Shin DL, Siebert U, Haas L, Valentin-Weigand P, Herrler G, Wu NH. Primary harbor seal (Phoca vitulina) airway epithelial cells show high susceptibility to infection by a seal-derived influenza A virus (H5N8). Transbound Emerg Dis 2022; 69:e2378-e2388. [PMID: 35504691 DOI: 10.1111/tbed.14580] [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: 03/02/2022] [Revised: 04/24/2022] [Accepted: 04/29/2022] [Indexed: 11/29/2022]
Abstract
Highly pathogenic avian influenza viruses of the H5N8 subtype have been circulating in Europe and Asia since 2016, causing huge economic losses to the poultry industry. A new wave of H5Nx infections has begun in 2020. The viruses mainly infect wild birds and waterfowl; from there they spread to poultry and cause disease. Previous studies have shown that the H5N8 viruses have seldom spread to mammals; however, reports in early 2021 indicate that humans may be infected, and some incident reports indicate that H5Nx clade 2.3.4.4B virus may be transmitted to wild mammals, such as red foxes and seals. In order to get more information on how the H5N8 virus affects seals and other marine animals, here, we used primary cultures to analyze the cell tropism of the H5N8 virus, which was isolated from an infected gray seal (H5N8/Seal-2016). Primary tracheal epithelial cells were readily infected by H5N8/Seal -2016 virus; in contrast, the commonly used primary seal kidney cells required the presence of exogenous trypsin to initiate virus infection. When applied to an ex vivo precision-cut lung slice model, compared with recombinant human H3N2 virus or H9N2 LPAI virus, the H5N8/Seal-2016 virus replicated to a high titer and caused a strong detrimental effect; with these characteristics, the virus was superior to a human H3N2 virus and to an H9N2 LPAI virus. By using well-differentiated air-liquid interface cultures, we have observed that ALI cultures of canines, ferrets, and harbor seals are more sensitive to H5N8/Seal-2016 virus than are human or porcine ALI cultures, which cannot be fully explained by sialic acid distribution. Our results indicate that the airway epithelium of carnivores may be the main target of H5N8 viruses. Consideration should be given to an increased monitoring of the distribution of highly pathogenic avian influenza viruses in wild animals. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Dai-Lun Shin
- Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, Hannover, Germany.,Research Center for Emerging Infections and Zoonoses, Hannover, Germany
| | - Ursula Siebert
- Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ludwig Haas
- Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Peter Valentin-Weigand
- Institute of Microbiology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Georg Herrler
- Institute of Virology, Department of Infectious Diseases, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Nai-Huei Wu
- Department of Veterinary Medicine, National Taiwan University, Taiwan
| |
Collapse
|
9
|
Qin L, Meng F, He H, Yang YB, Wang G, Tang YD, Sun M, Zhang W, Cai X, Wang S. A Virulent Trueperella pyogenes Isolate, Which Causes Severe Bronchoconstriction in Porcine Precision-Cut Lung Slices. Front Vet Sci 2022; 8:824349. [PMID: 35174243 PMCID: PMC8841747 DOI: 10.3389/fvets.2021.824349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 12/23/2021] [Indexed: 12/02/2022] Open
Abstract
Trueperella pyogenes causes disease in cattle, sheep, goats and swine, and is involved occasionally in human disease worldwide. Most reports implicating T. pyogenes have been associated with clinical cases, whereas no report has focused on pathogenicity of T. pyogenes in mouse models or precision-cut lung slice (PCLS) cultures from swine. Here, we isolated and identified a virulent, β-hemolytic, multidrug-resistant T. pyogenes strain named 20121, which harbors the virulence marker genes fimA, fimE, nanH, nanP and plo. It was found to be highly resistant to erythromycin, azithromycin and medemycin. Strain 20121 was pathogenic in mouse infection models, displaying pulmonary congestion and inflammatory cell infiltration, partial degeneration in epithelial cells of the tracheal and bronchiolar mucosa, a small amount of inflammatory cell infiltration in the submucosa, and bacteria (>104 CFU/g) in the lung. Importantly, we used T. pyogenes 20121 to infect porcine precision-cut lung slices (PCLS) cultures for the first time, where it caused severe bronchoconstriction. Furthermore, dexamethasone showed its ability to relieve bronchoconstriction in PCLS caused by T. pyogenes 20121, highlighting dexamethasone may assist antibiotic treatment for clinical T. pyogenes infection. This is the first report of T. pyogenes used to infect and cause bronchoconstriction in porcine PCLS. Our results suggest that porcine PCLS cultures as a valuable 3D organ model for the study of T. pyogenes infection and treatment in vitro.
Collapse
Affiliation(s)
- Lei Qin
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Fandan Meng
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Haijuan He
- Institute of Animal Husbandry, Heilongjiang Academy of Agriculture Sciences, Harbin, China
| | - Yong-Bo Yang
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Gang Wang
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Yan-Dong Tang
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Mingxia Sun
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
| | - Wenlong Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Xuehui Cai
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- *Correspondence: Xuehui Cai
| | - Shujie Wang
- National Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China
- Shujie Wang
| |
Collapse
|
10
|
Krüger N, Rocha C, Runft S, Krüger J, Färber I, Armando F, Leitzen E, Brogden G, Gerold G, Pöhlmann S, Hoffmann M, Baumgärtner W. The Upper Respiratory Tract of Felids Is Highly Susceptible to SARS-CoV-2 Infection. Int J Mol Sci 2021; 22:10636. [PMID: 34638978 PMCID: PMC8508926 DOI: 10.3390/ijms221910636] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 02/07/2023] Open
Abstract
Natural or experimental infection of domestic cats and virus transmission from humans to captive predatory cats suggest that felids are highly susceptible to SARS-CoV-2 infection. However, it is unclear which cells and compartments of the respiratory tract are infected. To address this question, primary cell cultures derived from the nose, trachea, and lungs of cat and lion were inoculated with SARS-CoV-2. Strong viral replication was observed for nasal mucosa explants and tracheal air-liquid interface cultures, whereas replication in lung slices was less efficient. Infection was mainly restricted to epithelial cells and did not cause major pathological changes. Detection of high ACE2 levels in the nose and trachea but not lung further suggests that susceptibility of feline tissues to SARS-CoV-2 correlates with ACE2 expression. Collectively, this study demonstrates that SARS-CoV-2 can efficiently replicate in the feline upper respiratory tract ex vivo and thus highlights the risk of SARS-CoV-2 spillover from humans to felids.
Collapse
Affiliation(s)
- Nadine Krüger
- Infection Biology Unit, German Primate Center, 37077 Göttingen, Germany; (C.R.); (S.P.); (M.H.)
| | - Cheila Rocha
- Infection Biology Unit, German Primate Center, 37077 Göttingen, Germany; (C.R.); (S.P.); (M.H.)
| | - Sandra Runft
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| | - Johannes Krüger
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| | - Iris Färber
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| | - Federico Armando
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| | - Eva Leitzen
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| | - Graham Brogden
- Department of Biochemistry, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (G.B.); (G.G.)
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany
- Institute of Experimental Virology, TWINCORE, Center for Experimental and Clinical Infection Research Hannover, 30625 Hannover, Germany
| | - Gisa Gerold
- Department of Biochemistry, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (G.B.); (G.G.)
- Research Center for Emerging Infections and Zoonoses, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany
- Institute of Experimental Virology, TWINCORE, Center for Experimental and Clinical Infection Research Hannover, 30625 Hannover, Germany
- Wallenberg Centre for Molecular Medicine (WCMM), Umeå University, 90185 Umeå, Sweden
- Department of Clinical Microbiology, Umeå University, 90185 Umeå, Sweden
| | - Stefan Pöhlmann
- Infection Biology Unit, German Primate Center, 37077 Göttingen, Germany; (C.R.); (S.P.); (M.H.)
- Faculty of Biology and Psychology, Georg-August-University, 37073 Göttingen, Germany
| | - Markus Hoffmann
- Infection Biology Unit, German Primate Center, 37077 Göttingen, Germany; (C.R.); (S.P.); (M.H.)
- Faculty of Biology and Psychology, Georg-August-University, 37073 Göttingen, Germany
| | - Wolfgang Baumgärtner
- Department of Pathology, University of Veterinary Medicine, Foundation, 30559 Hannover, Germany; (S.R.); (J.K.); (I.F.); (F.A.); (E.L.); (W.B.)
| |
Collapse
|
11
|
Viana F, O'Kane CM, Schroeder GN. Precision-cut lung slices: A powerful ex vivo model to investigate respiratory infectious diseases. Mol Microbiol 2021; 117:578-588. [PMID: 34570407 PMCID: PMC9298270 DOI: 10.1111/mmi.14817] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 09/23/2021] [Indexed: 11/30/2022]
Abstract
Respiratory infections are a leading cause of mortality worldwide. Most of the research on the underlying disease mechanisms is based on cell culture, organoid, or surrogate animal models. Although these provide important insights, they have limitations. Cell culture models fail to recapitulate cellular interactions in the lung and animal models often do not permit high‐throughput analysis of drugs or pathogen isolates; hence, there is a need for improved, scalable models. Precision‐cut lung slices (PCLS), small, uniform tissue slices generated from animal or human lungs are increasingly recognized and employed as an ex vivo organotypic model. PCLS retain remarkable cellular complexity and the architecture of the lung, providing a platform to investigate respiratory pathogens in a near‐native environment. Here, we review the generation and features of PCLS, their use to investigate the pathogenesis of viral and bacterial pathogens, and highlight their potential to advance respiratory infection research in the future.
Collapse
Affiliation(s)
- Flávia Viana
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Cecilia M O'Kane
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Gunnar N Schroeder
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| |
Collapse
|
12
|
Vötsch D, Willenborg M, Baumgärtner W, Rohde M, Valentin-Weigand P. Bordetella bronchiseptica promotes adherence, colonization, and cytotoxicity of Streptococcus suis in a porcine precision-cut lung slice model. Virulence 2020; 12:84-95. [PMID: 33372837 PMCID: PMC7781633 DOI: 10.1080/21505594.2020.1858604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Bordetella (B.) bronchiseptica and Streptococcus (S.) suis are major pathogens in pigs, which are frequently isolated from co-infections in the respiratory tract and contribute to the porcine respiratory disease complex (PRDC). Despite the high impact of co-infections on respiratory diseases of swine (and other hosts), very little is known about pathogen-pathogen-host interactions and the mechanisms of pathogenesis. In the present study, we established a porcine precision-cut lung slice (PCLS) model to analyze the effects of B. bronchiseptica infection on adherence, colonization, and cytotoxic effects of S. suis. We hypothesized that induction of ciliostasis by a clinical isolate of B. bronchiseptica may promote subsequent infection with a virulent S. suis serotype 2 strain. To investigate this theory, we monitored the ciliary activity by light microscopy, measured the release of lactate dehydrogenase, and calculated the number of PCLS-associated bacteria. To study the role of the pore-forming toxin suilysin (SLY) in S. suis-induced cytotoxicity, we included a SLY-negative isogenic mutant and the complemented mutant strain. Furthermore, we analyzed infected PCLS by histopathology, immunofluorescence microscopy, and field emission scanning electron microscopy. Our results showed that pre-infection with B. bronchiseptica promoted adherence, colonization, and, as a consequence of the increased colonization, the cytotoxic effects of S. suis, probably by reduction of the ciliary activity. Moreover, cytotoxicity induced by S. suis is strictly dependent on the presence of SLY. Though the underlying molecular mechanisms remain to be fully clarified, our results clearly support the hypothesis that B. bronchiseptica paves the way for S. suis infection.
Collapse
Affiliation(s)
- Désirée Vötsch
- Institute for Microbiology, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Maren Willenborg
- Institute for Microbiology, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Wolfgang Baumgärtner
- Institute for Pathology, University of Veterinary Medicine Hannover , Hannover, Germany
| | - Manfred Rohde
- Central Facility for Microscopy, Helmholtz Center for Infection Research , Braunschweig, Germany
| | - Peter Valentin-Weigand
- Institute for Microbiology, University of Veterinary Medicine Hannover , Hannover, Germany
| |
Collapse
|
13
|
Johansen MD, Irving A, Montagutelli X, Tate MD, Rudloff I, Nold MF, Hansbro NG, Kim RY, Donovan C, Liu G, Faiz A, Short KR, Lyons JG, McCaughan GW, Gorrell MD, Cole A, Moreno C, Couteur D, Hesselson D, Triccas J, Neely GG, Gamble JR, Simpson SJ, Saunders BM, Oliver BG, Britton WJ, Wark PA, Nold-Petry CA, Hansbro PM. Animal and translational models of SARS-CoV-2 infection and COVID-19. Mucosal Immunol 2020; 13:877-891. [PMID: 32820248 PMCID: PMC7439637 DOI: 10.1038/s41385-020-00340-z] [Citation(s) in RCA: 134] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 02/06/2023]
Abstract
COVID-19 is causing a major once-in-a-century global pandemic. The scientific and clinical community is in a race to define and develop effective preventions and treatments. The major features of disease are described but clinical trials have been hampered by competing interests, small scale, lack of defined patient cohorts and defined readouts. What is needed now is head-to-head comparison of existing drugs, testing of safety including in the background of predisposing chronic diseases, and the development of new and targeted preventions and treatments. This is most efficiently achieved using representative animal models of primary infection including in the background of chronic disease with validation of findings in primary human cells and tissues. We explore and discuss the diverse animal, cell and tissue models that are being used and developed and collectively recapitulate many critical aspects of disease manifestation in humans to develop and test new preventions and treatments.
Collapse
Affiliation(s)
- M D Johansen
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
| | - A Irving
- Zhejiang University-University of Edinburgh Institute, Zhejiang University School of Medicine, ZJU International Campus, Haining, China
- Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - X Montagutelli
- Department of Genomes and Genetics, Institut Pasteur, Paris, France
| | - M D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, VIC, Australia
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
| | - I Rudloff
- Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, 3168, Australia
- Department of Paediatrics, Monash University, Clayton, VIC, 3168, Australia
| | - M F Nold
- Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, 3168, Australia
- Monash Newborn, Monash Children's Hospital, Clayton, VIC, Australia
| | - N G Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia
| | - R Y Kim
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia
| | - C Donovan
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia
| | - G Liu
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia
| | - A Faiz
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
| | - K R Short
- School of Chemistry and Molecular Biosciences and Australian Infectious Diseases Research Centre, The University of Queensland, Brisbane, Australia
| | - J G Lyons
- Centenary Institute and Dermatology, The University of Sydney and Cancer Services, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - G W McCaughan
- Centenary Institute and Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - M D Gorrell
- Centenary Institute and Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - A Cole
- Centenary Institute and Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - C Moreno
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, Australia
| | - D Couteur
- Charles Perkins Centre and School of Life and Environmental Sciences, University of Sydney, and Faculty of Medicine and Health, Concord Clinical School, ANZAC Research Institute and Centre for Education and Research on Ageing, Sydney, Australia
| | - D Hesselson
- Centenary Institute and Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - J Triccas
- Discipline of Infectious Diseases and Immunology, Central Clinical School, Faculty of Medicine and Health and the Charles Perkins Centre, The University of Sydney, Camperdown, Sydney, Australia
| | - G G Neely
- Dr. John and Anne Chong Lab for Functional Genomics, Charles Perkins Centre, Centenary Institute, and School of Life and Environmental Sciences, University of Sydney, Sydney, NSW, Australia
| | - J R Gamble
- Centenary Institute and Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - S J Simpson
- Charles Perkins Centre and School of Life and Environmental Sciences, University of Sydney, and Faculty of Medicine and Health, Concord Clinical School, ANZAC Research Institute and Centre for Education and Research on Ageing, Sydney, Australia
| | - B M Saunders
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
| | - B G Oliver
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia
- Woolcock Institute of Medical Research, Sydney, Australia
| | - W J Britton
- Centenary Institute, The University of Sydney and Department of Clinical Immunology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - P A Wark
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia
| | - C A Nold-Petry
- Department of Molecular and Translational Sciences, Monash University, Clayton, VIC, Australia
- Ritchie Centre, Hudson Institute of Medical Research, Clayton, VIC, 3168, Australia
| | - P M Hansbro
- Centre for Inflammation, Centenary Institute and University of Technology Sydney, Faculty of Science, Sydney, Australia.
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW, Australia.
| |
Collapse
|
14
|
Avian Influenza A Virus Infects Swine Airway Epithelial Cells without Prior Adaptation. Viruses 2020; 12:v12060589. [PMID: 32481674 PMCID: PMC7374723 DOI: 10.3390/v12060589] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 01/15/2023] Open
Abstract
Pigs play an important role in the interspecies transmission of influenza A viruses (IAV). The porcine airway epithelium contains binding sites for both swine/human IAV (α2,6-linked sialic acids) and avian IAV (α2,3-linked sialic acids) and therefore is suited for adaptation of viruses from other species as suggested by the “mixing vessel theory”. Here, we applied well-differentiated swine airway epithelial cells to find out whether efficient infection by avian IAV requires prior adaption. Furthermore, we analyzed the influence of the sialic acid-binding activity and the virus-induced detrimental effects. Surprisingly, an avian IAV H1N1 strain circulating in European poultry and waterfowl shows increased and prolonged viral replication without inducing a strong innate immune response. This virus could infect the lower respiratory tract in our precision cut-lung slice model. Pretreating the cells with poly (I:C) and/or JAK/STAT pathway inhibitors revealed that the interferon-stimulated innate immune response influences the replication of avian IAV in swine airway epitheliums but not that of swine IAV. Further studies indicated that in the infection by IAVs, the binding affinity of sialic acid is not the sole factor affecting the virus infectivity for swine or human airway epithelial cells, whereas it may be crucial in well-differentiated ferret tracheal epithelial cells. Taken together, our results suggest that the role of pigs being the vessel of interspecies transmission should be reconsidered, and the potential of avian H1N1 viruses to infect mammals needs to be characterized in more detail.
Collapse
|
15
|
Bryson KJ, Garrido D, Esposito M, McLachlan G, Digard P, Schouler C, Guabiraba R, Trapp S, Vervelde L. Precision cut lung slices: a novel versatile tool to examine host-pathogen interaction in the chicken lung. Vet Res 2020; 51:2. [PMID: 31924278 PMCID: PMC6954617 DOI: 10.1186/s13567-019-0733-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 12/12/2019] [Indexed: 01/12/2023] Open
Abstract
The avian respiratory tract is a common entry route for many pathogens and an important delivery route for vaccination in the poultry industry. Immune responses in the avian lung have mostly been studied in vivo due to the lack of robust, relevant in vitro and ex vivo models mimicking the microenvironment. Precision-cut lung slices (PCLS) have the major advantages of maintaining the 3-dimensional architecture of the lung and includes heterogeneous cell populations. PCLS have been obtained from a number of mammalian species and from chicken embryos. However, as the embryonic lung is physiologically undifferentiated and immunologically immature, it is less suitable to examine complex host-pathogen interactions including antimicrobial responses. Here we prepared PCLS from immunologically mature chicken lungs, tested different culture conditions, and found that serum supplementation has a detrimental effect on the quality of PCLS. Viable cells in PCLS remained present for ≥ 40 days, as determined by viability assays and sustained motility of fluorescent mononuclear phagocytic cells. The PCLS were responsive to lipopolysaccharide stimulation, which induced the release of nitric oxide, IL-1β, type I interferons and IL-10. Mononuclear phagocytes within the tissue maintained phagocytic activity, with live cell imaging capturing interactions with latex beads and an avian pathogenic Escherichia coli strain. Finally, the PCLS were also shown to be permissive to infection with low pathogenic avian influenza viruses. Taken together, immunologically mature chicken PCLS provide a suitable model to simulate live organ responsiveness and cell dynamics, which can be readily exploited to examine host-pathogen interactions and inflammatory responses.
Collapse
Affiliation(s)
- Karen Jane Bryson
- Division of Infection and Immunity, The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, Edinburgh, Scotland EH25 9RG UK
| | - Damien Garrido
- INRAE, Université de Tours, UMR ISP, Centre Val de Loire, 37380 Nouzilly, France
| | - Marco Esposito
- Division of Developmental Biology, The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, Edinburgh, Scotland EH25 9RG UK
| | - Gerry McLachlan
- Division of Developmental Biology, The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, Edinburgh, Scotland EH25 9RG UK
| | - Paul Digard
- Division of Infection and Immunity, The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, Edinburgh, Scotland EH25 9RG UK
| | - Catherine Schouler
- INRAE, Université de Tours, UMR ISP, Centre Val de Loire, 37380 Nouzilly, France
| | - Rodrigo Guabiraba
- INRAE, Université de Tours, UMR ISP, Centre Val de Loire, 37380 Nouzilly, France
| | - Sascha Trapp
- INRAE, Université de Tours, UMR ISP, Centre Val de Loire, 37380 Nouzilly, France
| | - Lonneke Vervelde
- Division of Infection and Immunity, The Roslin Institute, Royal (Dick) School of Veterinary Studies, University of Edinburgh, Easter Bush, Midlothian, Edinburgh, Scotland EH25 9RG UK
| |
Collapse
|
16
|
Fu Y, Dürrwald R, Meng F, Tong J, Wu NH, Su A, Yin X, Haas L, Schmidtke M, Zell R, Krumbholz A, Herrler G. Infection Studies in Pigs and Porcine Airway Epithelial Cells Reveal an Evolution of A(H1N1)pdm09 Influenza A Viruses Toward Lower Virulence. J Infect Dis 2020; 219:1596-1604. [PMID: 30776304 PMCID: PMC7107423 DOI: 10.1093/infdis/jiy719] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 01/31/2018] [Indexed: 12/15/2022] Open
Abstract
We analyzed the virulence of pandemic H1N1 2009 influenza A viruses in vivo and in vitro. Selected viruses isolated in 2009, 2010, 2014, and 2015 were assessed using an aerosol-mediated high-dose infection model for pigs as well as air-liquid interface cultures of differentiated airway epithelial cells. Using a dyspnea score, rectal temperature, lung lesions, and viral load in the lung as parameters, the strains from 2014–2015 were significantly less virulent than the strains isolated in 2009–2010. In vitro, the viruses from 2009–2010 also differed from the 2014–2015 viruses by increased release of infectious virus, a more pronounced loss of ciliated cells, and a reduced thickness of the epithelial cell layer. Our in vivo and in vitro results reveal an evolution of A(H1N1)pdm09 viruses toward lower virulence. Our in vitro culture system can be used to predict the virulence of influenza viruses.
Collapse
Affiliation(s)
- Yuguang Fu
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany.,State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences
| | - Ralf Dürrwald
- Division of Experimental Virology, Department for Medical Microbiology, Jena University Hospital, Friedrich Schiller University, Germany
| | - Fandan Meng
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany.,State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences
| | - Jie Tong
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany
| | - Nai-Huei Wu
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany
| | - Ang Su
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany
| | - Xiangping Yin
- State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences
| | - Ludwig Haas
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany
| | - Michaela Schmidtke
- Division of Experimental Virology, Department for Medical Microbiology, Jena University Hospital, Friedrich Schiller University, Germany
| | - Roland Zell
- Division of Experimental Virology, Department for Medical Microbiology, Jena University Hospital, Friedrich Schiller University, Germany
| | - Andi Krumbholz
- Institute of Infection Medicine, Kiel University, Germany
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Germany
| |
Collapse
|
17
|
The effects of oxygen concentration on cell death, anti-oxidant transcription, acute inflammation, and cell proliferation in precision-cut lung slices. Sci Rep 2019; 9:16239. [PMID: 31700101 PMCID: PMC6838147 DOI: 10.1038/s41598-019-52813-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 10/23/2019] [Indexed: 12/19/2022] Open
Abstract
Although animal models are often used in drug research, alternative experimental models are becoming more popular as they reduce animal use and suffering. Of particular interest are precision-cut lung slices, which refer to explants – with a reproducible thickness and diameter – that can be cultured ex vivo. Because lung slices (partially) reflect functional and structural features of whole tissue, they are often applied in the field of immunology, pharmacology, toxicology, and virology. Nevertheless, previous research failed to adequately address concerns with respect to the viability of lung slices. For instance, the effect of oxygen concentration on lung slice viability has never been thoroughly investigated. Therefore, the main goal of this study was to investigate the effect of oxygen concentration (20 vs. 80% O2) on the degree of cell death, anti-oxidant transcription, acute inflammation, and cell proliferation in lung slices. According to the results, slices incubated at 20% O2 displayed less cell death, anti-oxidant transcription, and acute inflammation, as well as more cell proliferation, demonstrating that these slices were considerably more viable than slices cultured at 80% O2. These findings expand our knowledge on lung slices and their use as an alternative experimental model in drug research.
Collapse
|
18
|
Viral Coinfection Replaces Effects of Suilysin on Streptococcus suis Adherence to and Invasion of Respiratory Epithelial Cells Grown under Air-Liquid Interface Conditions. Infect Immun 2019; 87:IAI.00350-19. [PMID: 31138613 DOI: 10.1128/iai.00350-19] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 05/06/2019] [Indexed: 12/23/2022] Open
Abstract
Streptococcus suis is an important zoonotic pathogen which can infect humans and pigs worldwide, posing a potential risk to global public health. Suilysin, a pore-forming cholesterol-dependent cytolysin, is considered to play an important role in the pathogenesis of S. suis infections. It is known that infection with influenza A viruses may favor susceptibility to secondary bacterial infection, resulting in more severe disease and increased mortality. However, the molecular mechanisms underlying these coinfections are incompletely understood. Applying highly differentiated primary porcine respiratory epithelial cells grown under air-liquid interface (ALI) conditions, we analyzed the contribution of swine influenza viruses (SIV) to the virulence of S. suis, with a special focus on its cytolytic toxin, suilysin. We found that during secondary bacterial infection, suilysin of S. suis contributed to the damage of well-differentiated respiratory epithelial cells in the early stage of infection, whereas the cytotoxic effects induced by SIV became prominent at later stages of infection. Prior infection by SIV enhanced the adherence to and colonization of porcine airway epithelial cells by a wild-type (wt) S. suis strain and a suilysin-negative S. suis mutant in a sialic acid-dependent manner. A striking difference was observed with respect to bacterial invasion. After bacterial monoinfection, only the wt S. suis strain showed an invasive phenotype, whereas the mutant remained adherent. When the epithelial cells were preinfected with SIV, the suilysin-negative mutant also showed an invasion capacity. Therefore, we propose that coinfection with SIV may compensate for the lack of suilysin in the adherence and invasion process of suilysin-negative S. suis.
Collapse
|
19
|
Wang Z, Yu J, Thomas M, Sreenivasan CC, Hause BM, Wang D, Francis DH, Kaushik RS, Li F. Pre-exposure with influenza A virus A/WSN/1933(H1N1) resulted in viral shedding reduction from pigs challenged with either swine H1N1 or H3N2 virus. Vet Microbiol 2018; 228:26-31. [PMID: 30593376 DOI: 10.1016/j.vetmic.2018.11.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/14/2018] [Accepted: 11/15/2018] [Indexed: 01/03/2023]
Abstract
There is an urgent need to develop a broad-spectrum vaccine that can effectively prevent or eliminate the spread of co-circulating swine influenza virus strains in multiple lineages or subtypes. We describe here that pre-exposure with a live virus generated via a A/WSN/1933(H1N1) reverse genetics system resulted in a significant reduction of viral shedding from pigs exposed to either a swine H1N1 virus or a swine H3N2 virus. At 3-day post challenge (DPC), approximately 1 log and 1.5 logs reductions of viral shedding were observed in the swine H1N1- and H3N2-challenged vaccinated pigs when compared to unvaccinated animals. A further decline in viral load was observed at 5 DPC where viral shedding was decreased by greater than 3 logs in vaccinated pigs receiving either the H1N1 or H3N2 virus challenge. Although the sera of the vaccinated pigs contained high titers of neutralizing antibodies against the vaccine strain, measured by Hemagglutination Inhibition (HI) assay, only suboptimal HI titers of neutralizing antibody were detected in the post-challenge serum of the vaccinated animals using the challenge swine H1N1 virus. The substantial genetic and antigenic differences between the vaccine virus and the challenge viruses imply that the observed protection may be mediated by mechanisms other than neutralization by IgG, such as non-neutralizing antibody activities, mucosal immunity, or conserved T cell immunity, which warrants further investigation.
Collapse
Affiliation(s)
- Zhao Wang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; China Institute of Veterinary Drug Control, 8 Zhongguancun S St, Beijing, China
| | - Jieshi Yu
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Milton Thomas
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Chithra C Sreenivasan
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA
| | - Ben M Hause
- Cambridge Technologies, Oxford Street Worthington, MN, 56187, USA
| | - Dan Wang
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; BioSNTR, Brookings, SD, 57007, USA
| | - David H Francis
- Department of Veterinary and Biomedical Sciences, South Dakota State University, Brookings, SD, 57007, USA
| | - Radhey S Kaushik
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA.
| | - Feng Li
- Department of Biology and Microbiology, South Dakota State University, Brookings, SD, 57007, USA; BioSNTR, Brookings, SD, 57007, USA.
| |
Collapse
|
20
|
Fu Y, Tong J, Meng F, Hoeltig D, Liu G, Yin X, Herrler G. Ciliostasis of airway epithelial cells facilitates influenza A virus infection. Vet Res 2018; 49:65. [PMID: 30021653 PMCID: PMC6052543 DOI: 10.1186/s13567-018-0568-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/06/2018] [Indexed: 01/28/2023] Open
Abstract
Porcine precision-cut lung slices (PCLS) were used to analyze the effect of the ciliary activity on infection of airway epithelial cells by influenza viruses. Treatment of slices with 2% NaCl for 30 min resulted in reversible ciliostasis. When PCLS were infected by a swine influenza virus of the H3N2 subtype under ciliostatic conditions, the viral yield was about twofold or threefold higher at 24 or 48 h post-infection, respectively, as compared to slices with ciliary activity. Therefore, the cilia beating not only transports the mucus out of the airways, it also impedes virus infection.
Collapse
Affiliation(s)
- Yuguang Fu
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany.,Lanzhou Veterinary Research Institute, State Key Laboratory of Veterinary Etiological Biology, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
| | - Jie Tong
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Fandan Meng
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Doris Hoeltig
- Clinic of Swine and Small Ruminants and Forensic Medicine and Ambulatory Service, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany
| | - Guangliang Liu
- Lanzhou Veterinary Research Institute, State Key Laboratory of Veterinary Etiological Biology, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
| | - Xiangping Yin
- Lanzhou Veterinary Research Institute, State Key Laboratory of Veterinary Etiological Biology, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu Province, China
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, Foundation, Hannover, Germany.
| |
Collapse
|
21
|
Tong J, Fu Y, Wu NH, Rohde M, Meng F, Valentin-Weigand P, Herrler G. Sialic acid-dependent interaction of group B streptococci with influenza virus-infected cells reveals a novel adherence and invasion mechanism. Cell Microbiol 2018; 20. [DOI: 10.1111/cmi.12818] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 11/10/2017] [Accepted: 12/01/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Jie Tong
- Institute of Virology; University of Veterinary Medicine Hannover; Hannover Germany
| | - Yuguang Fu
- Institute of Virology; University of Veterinary Medicine Hannover; Hannover Germany
- Chinese Academy of Agricultural Sciences, Lanzhou Veterinary Research Institute; State Key Laboratory of Veterinary Etiological Biology; Lanzhou Gansu Province China
| | - Nai-Huei Wu
- Institute of Virology; University of Veterinary Medicine Hannover; Hannover Germany
| | - Manfred Rohde
- Central Facility for Microscopy; Helmholtz Centre for Infection Research, HZI; Braunschweig Germany
| | - Fandan Meng
- Institute of Virology; University of Veterinary Medicine Hannover; Hannover Germany
| | | | - Georg Herrler
- Institute of Virology; University of Veterinary Medicine Hannover; Hannover Germany
| |
Collapse
|
22
|
Yang W, Lambertz RLO, Punyadarsaniya D, Leist SR, Stech J, Schughart K, Herrler G, Wu NH, Meng F. Increased virulence of a PB2/HA mutant of an avian H9N2 influenza strain after three passages in porcine differentiated airway epithelial cells. Vet Microbiol 2017; 211:129-134. [PMID: 29102108 DOI: 10.1016/j.vetmic.2017.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 10/09/2017] [Accepted: 10/12/2017] [Indexed: 01/18/2023]
Abstract
We analyzed the adaptation of influenza viruses to growth in differentiated airway epithelial cells of a new host by passaging an avian H9N2 virus three times in porcine precision-cut lung slices (PCLS). Sequence analysis revealed four mutations: one each in the PB2 and NS1 proteins, and two in the HA protein. In this study, we characterized the PB2 mutation G685R by generating recombinant H9N2 viruses containing the PB2 single mutation alone or in combination with one of the HA mutations (A190V or T212I). When analyzed in porcine cells - a tracheal cell line (NPTr) or PCLS - the PB2-685 mutant did not provide a growth advantage and had no effect on the ciliary activity which is a virulence marker of swine influenza viruses. Pathogenicity for mice was also not increased by the single PB2 mutation. However, both double mutants (HA-190+PB2-685 and HA-212+PB2-685) showed significantly increased virulence in mice. Therefore, the mutations in the HA and PB2 proteins may confer early adaptation of an avian H9N2 virus to a mammalian host. In conclusion, we expect that a broader ensemble of mutations will be required to render an H9N2 virus virulent for pigs.
Collapse
Affiliation(s)
- Wei Yang
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ruth L O Lambertz
- Department of Infection Genetics, Helmholtz Centre for Infection Research and University of Veterinary Medicine Hannover, Braunschweig, Germany
| | - Darsaniya Punyadarsaniya
- Virology and Immunology Department, Faculty of Veterinary Medicine, Mahanakorn University of Technology, Bangkok, Thailand
| | - Sarah R Leist
- Department of Infection Genetics, Helmholtz Centre for Infection Research and University of Veterinary Medicine Hannover, Braunschweig, Germany
| | - Jürgen Stech
- Institute for Molecular Virology and Cell Biology, Friedrich-Loeffler-Institut, Greifswald-Insel Riems, Germany
| | - Klaus Schughart
- Department of Infection Genetics, Helmholtz Centre for Infection Research and University of Veterinary Medicine Hannover, Braunschweig, Germany; University of Tennessee Health Science Center, Department of Microbiology, Immunology and Biochemistry, Memphis, TN, USA
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Nai-Huei Wu
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany.
| | - Fandan Meng
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany.
| |
Collapse
|
23
|
Carranza-Rosales P, Carranza-Torres IE, Guzmán-Delgado NE, Lozano-Garza G, Villarreal-Treviño L, Molina-Torres C, Villarreal JV, Vera-Cabrera L, Castro-Garza J. Modeling tuberculosis pathogenesis through ex vivo lung tissue infection. Tuberculosis (Edinb) 2017; 107:126-132. [PMID: 29050759 PMCID: PMC7106348 DOI: 10.1016/j.tube.2017.09.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Revised: 09/06/2017] [Accepted: 09/10/2017] [Indexed: 02/02/2023]
Abstract
Tuberculosis (TB) is one of the top 10 causes of death worldwide. Several in vitro and in vivo experimental models have been used to study TB pathogenesis and induction of immune response during Mycobacterium tuberculosis infection. Precision cut lung tissue slices (PCLTS) is an experimental model, in which all the usual cell types of the organ are found, the tissue architecture and the interactions amongst the different cells are maintained. PCLTS in good physiological conditions, monitored by MTT assay and histology, were infected with either virulent Mycobacterium tuberculosis strain H37Rv or the TB vaccine strain Mycobacterium bovis BCG. Histological analysis showed that bacilli infecting lung tissue slices were observed in the alveolar septa, alveolar light spaces, near to type II pneumocytes, and inside macrophages. Mycobacterial infection of PCLTS induced TNF-α production, which is consistent with previous M. tuberculosis in vitro and in vivo studies. This is the first report of using PCLTS as a system to study M. tuberculosis infection. The PCLTS model provides a useful tool to evaluate the innate immune responses and other aspects during the early stages of mycobacterial infection.
Collapse
Affiliation(s)
- Pilar Carranza-Rosales
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril 501 ote, Col. Independencia, 64720, Monterrey, N.L., Mexico.
| | - Irma Edith Carranza-Torres
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril 501 ote, Col. Independencia, 64720, Monterrey, N.L., Mexico; Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Avenida Pedro de Alba y Manuel L, Barragán s/n, Cd. Universitaria, 66450, San Nicolás de los Garza, N.L., Mexico.
| | - Nancy Elena Guzmán-Delgado
- Departamento de Patología, Unidad Médica de Alta Especialidad # 34, Instituto Mexicano del Seguro Social, Monterrey, N.L. 64730, Mexico.
| | - Gerardo Lozano-Garza
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril 501 ote, Col. Independencia, 64720, Monterrey, N.L., Mexico.
| | - Licet Villarreal-Treviño
- Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Avenida Pedro de Alba y Manuel L, Barragán s/n, Cd. Universitaria, 66450, San Nicolás de los Garza, N.L., Mexico.
| | - Carmen Molina-Torres
- Servicio de Dermatología, Hospital Universitario "José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos, Col. Mitras Centro, Monterrey, N.L., Mexico.
| | - Javier Vargas Villarreal
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril 501 ote, Col. Independencia, 64720, Monterrey, N.L., Mexico.
| | - Lucio Vera-Cabrera
- Servicio de Dermatología, Hospital Universitario "José E. González", Universidad Autónoma de Nuevo León, Madero y Gonzalitos, Col. Mitras Centro, Monterrey, N.L., Mexico.
| | - Jorge Castro-Garza
- Centro de Investigación Biomédica del Noreste, Instituto Mexicano del Seguro Social, 2 de Abril 501 ote, Col. Independencia, 64720, Monterrey, N.L., Mexico.
| |
Collapse
|
24
|
Comparison of mono- and co-infection by swine influenza A viruses and porcine respiratory coronavirus in porcine precision-cut lung slices. Res Vet Sci 2017; 115:470-477. [PMID: 28779714 PMCID: PMC7111742 DOI: 10.1016/j.rvsc.2017.07.016] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 05/31/2017] [Accepted: 07/16/2017] [Indexed: 01/09/2023]
Abstract
Coronaviruses as well as influenza A viruses are widely spread in pig fattening and can cause high economical loss. Here we infected porcine precision-cut lung slices with porcine respiratory coronavirus and two Influenza A viruses to analyze if co-infection with these viruses may enhance disease outcome in swine. Ciliary activity of the epithelial cells in the bronchus of precision-cut lung slices was measured. Co-infection of PCLS reduced virulence of both virus species compared to mono-infection. Similar results were obtained by mono- and co-infection experiments on a porcine respiratory cell line. Again lower titers in co-infection groups indicated an interference of the two RNA viruses. This is in accordance with in vivo experiments, revealing cell innate immune answers to both PRCoV and SIV that are able to restrict the virulence and pathogenicity of the viruses. PCLS can be used to analyze porcine respiratory coronavirus infection. Co-infection of PCLS with PRCoV and SIV reduces viral replication efficiency. SIV replication is reduced after co-infection of NPTr cells with PRCoV. Porcine influenza and coronaviruses interfere during infection.
Collapse
|
25
|
Mutations during the Adaptation of H9N2 Avian Influenza Virus to the Respiratory Epithelium of Pigs Enhance Sialic Acid Binding Activity and Virulence in Mice. J Virol 2017; 91:JVI.02125-16. [PMID: 28148793 DOI: 10.1128/jvi.02125-16] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/25/2017] [Indexed: 12/23/2022] Open
Abstract
The natural reservoir for influenza viruses is waterfowl, and from there they succeeded in crossing the barrier to different mammalian species. We analyzed the adaptation of avian influenza viruses to a mammalian host by passaging an H9N2 strain three times in differentiated swine airway epithelial cells. Using precision-cut slices from the porcine lung to passage the parental virus, isolates from each of the three passages (P1 to P3) were characterized by assessing growth curves and ciliostatic effects. The only difference noted was an increased growth kinetics of the P3 virus. Sequence analysis revealed four mutations: one each in the PB2 and NS1 proteins and two in the HA protein. The HA mutations, A190V and T212I, were characterized by generating recombinant viruses containing either one or both amino acid exchanges. Whereas the parental virus recognized α2,3-linked sialic acids preferentially, the HA190 mutant bound to a broad spectrum of glycans with α2,6/8/9-linked sialic acids. The HA212 mutant alone differed only slightly from the parental virus; however, the combination of both mutations (HA190+HA212) increased the binding affinity to those glycans recognized by the HA190 mutant. Remarkably, only the HA double mutant showed a significantly increased pathogenicity in mice. In contrast, none of those mutations affected the ciliary activity of the epithelial cells which is characteristic for virulent swine influenza viruses. Taken together, our results indicate that shifts in the HA receptor affinity are just an early adaptation step of avian H9N2 strains; further mutational changes may be required to become virulent for pigs.IMPORTANCE Swine play an important role in the interspecies transmission of influenza viruses. Avian influenza A viruses (IAV) of the H9N2 subtype have successfully infected hosts from different species but have not established a stable lineage. We have analyzed the adaptation of IAV-H9N2 virus to target cells of a new host by passaging the virus three times in differentiated porcine respiratory epithelial cells. Among the four mutations detected, the two HA mutations were analyzed by generating recombinant viruses. Depending on the infection system used, the mutations differed in their phenotypic expression, e.g., sialic acid binding activity, replication kinetics, plaque size, and pathogenicity in inbred mice. However, none of the mutations affected the ciliary activity which serves as a virulence marker. Thus, early adaptive mutation enhances the replication kinetics, but more mutations are required for IAV of the H9N2 subtype to become virulent.
Collapse
|
26
|
Wu NH, Yang W, Beineke A, Dijkman R, Matrosovich M, Baumgärtner W, Thiel V, Valentin-Weigand P, Meng F, Herrler G. The differentiated airway epithelium infected by influenza viruses maintains the barrier function despite a dramatic loss of ciliated cells. Sci Rep 2016; 6:39668. [PMID: 28004801 PMCID: PMC5177954 DOI: 10.1038/srep39668] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 11/22/2016] [Indexed: 11/08/2022] Open
Abstract
Virus-host interactions in the respiratory epithelium during long term influenza virus infection are not well characterized. Therefore, we developed an air-liquid interface culture system for differentiated porcine respiratory epithelial cells to study the effect of virus-induced cellular damage. In our well-differentiated cells, α2,6-linked sialic acid is predominantly expressed on the apical surface and the basal cells mainly express α2,3-linked sialic acid. During the whole infection period, release of infectious virus was maintained at a high titre for more than seven days. The infected epithelial cells were subject to apoptosis resulting in the loss of ciliated cells together with a thinner thickness. Nevertheless, the airway epithelium maintained trans-epithelial electrical resistance and retained its barrier function. The loss of ciliated cells was compensated by the cells which contained the KRT5 basal cell marker but were not yet differentiated into ciliated cells. These specialized cells showed an increase of α2,3-linked sialic acid on the apical surface. In sum, our results help to explain the localized infection of the airway epithelium by influenza viruses. The impairment of mucociliary clearance in the epithelial cells provides an explanation why prior viral infection renders the host more susceptible to secondary co-infection by another pathogen.
Collapse
Affiliation(s)
- Nai-Huei Wu
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Wei Yang
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Andreas Beineke
- Institute of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Ronald Dijkman
- Federal Department of Home Affairs, Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Switzerland
| | | | - Wolfgang Baumgärtner
- Institute of Pathology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Volker Thiel
- Federal Department of Home Affairs, Institute of Virology and Immunology, Bern, Switzerland
- Department of Infectious diseases and Pathobiology, Vetsuisse Faculty, University of Bern, Switzerland
| | - Peter Valentin-Weigand
- Institute for Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Fandan Meng
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
27
|
Donovan C, Seow HJ, Bourke JE, Vlahos R. Influenza A virus infection and cigarette smoke impair bronchodilator responsiveness to β-adrenoceptor agonists in mouse lung. Clin Sci (Lond) 2016; 130:829-37. [PMID: 27128803 PMCID: PMC5233570 DOI: 10.1042/cs20160093] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 02/14/2016] [Accepted: 02/23/2016] [Indexed: 11/27/2022]
Abstract
β2-adrenoceptor agonists are the mainstay therapy for patients with asthma but their effectiveness in cigarette smoke (CS)-induced lung disease such as chronic obstructive pulmonary disease (COPD) is limited. In addition, bronchodilator efficacy of β2-adrenoceptor agonists is decreased during acute exacerbations of COPD (AECOPD), caused by respiratory viruses including influenza A. Therefore, the aim of the present study was to assess the effects of the β2-adrenoceptor agonist salbutamol (SALB) on small airway reactivity using mouse precision cut lung slices (PCLS) prepared from CS-exposed mice and from CS-exposed mice treated with influenza A virus (Mem71, H3N1). CS exposure alone reduced SALB potency and efficacy associated with decreased β2-adrenoceptor mRNA expression, and increased tumour necrosis factor α (TNFα) and interleukin-1β (IL-1β) expression. This impaired relaxation was restored by day 12 in the absence of further CS exposure. In PCLS prepared after Mem71 infection alone, responses to SALB were transient and were not well maintained. CS exposure prior to Mem71 infection almost completely abolished relaxation, although β2-adrenoceptor and TNFα and IL-1β expression were unaltered. The present study has shown decreased sensitivity to SALB after CS or a combination of CS and Mem71 occurs by different mechanisms. In addition, the PCLS technique and our models of CS and influenza infection provide a novel setting for assessment of alternative bronchodilators.
Collapse
Affiliation(s)
- Chantal Donovan
- Biomedicine Discovery Institute, Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Huei Jiunn Seow
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia
| | - Jane E Bourke
- Biomedicine Discovery Institute, Department of Pharmacology, Monash University, Clayton, Victoria 3800, Australia Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia
| | - Ross Vlahos
- Lung Health Research Centre, Department of Pharmacology and Therapeutics, University of Melbourne, Parkville, Victoria 3010, Australia School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia
| |
Collapse
|
28
|
Pomorska-Mól M, Markowska-Daniel I, Kwit K, Stępniewska K, Pejsak Z. Profile of the porcine acute-phase proteins response following experimental co-infection with H3N2 swine influenza virus and Pasteurella multocida. Biomarkers 2015; 20:189-95. [PMID: 26161700 DOI: 10.3109/1354750x.2015.1061600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Acute phase proteins (APPs) are proposed as potential markers of the health status in pigs. OBJECTIVE Circulating APPs in pigs co-infected with swine influenza virus and Pasteurella multocida. METHODS Serum APPs were measured in co-infected and control pigs with the use of commercial ELISA tests. RESULTS All investigated APPs revealed significant changes in co-infected pigs during the study period. The concentration of C-reactive protein, haptoglobin and serum amyloid A (SAA) increased significantly at 2 dpi, before respiratory signs and fever were observed. Concentration of Pig-MAP increased significantly at 3 dpi. C-reactive protein and SAA reaction were rapid but short-lived. The concentration of Hp and Pig-MAP in serum also increased at very early stage of co-infection but remained elevated for a longer period of time. CONCLUSIONS Maximal concentration of serum amyloid A correlated with the disease severity in pigs.
Collapse
|
29
|
Wu NH, Meng F, Seitz M, Valentin-Weigand P, Herrler G. Sialic acid-dependent interactions between influenza viruses and Streptococcus suis affect the infection of porcine tracheal cells. J Gen Virol 2015; 96:2557-2568. [PMID: 26297001 DOI: 10.1099/jgv.0.000223] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Bacterial co-infections are a major complication in influenza-virus-induced disease in both humans and animals. Either of the pathogens may induce a host response that affects the infection by the other pathogen. A unique feature in the co-infection by swine influenza viruses (SIV) and Streptococcus suis serotype 2 is the direct interaction between the two pathogens. It is mediated by the haemagglutinin of SIV that recognizes the α2,6-linked sialic acid present in the capsular polysaccharide of Streptococcus suis. In the present study, this interaction was demonstrated for SIV of both H1N1 and H3N2 subtypes as well as for human influenza viruses that recognize α2,6-linked sialic acid. Binding of SIV to Streptococcus suis resulted in co-sedimentation of virus with bacteria during low-speed centrifugation. Viruses bound to bacteria retained infectivity but induced only tiny plaques compared with control virus. Infection of porcine tracheal cells by SIV facilitated adherence of Streptococcus suis, which was evident by co-staining of bacterial and viral antigen. Sialic-acid-dependent binding of Streptococcus suis was already detectable after incubation for 30 min. By contrast, bacterial co-infection had a negative effect on the replication of SIV as indicated by lower virus titres in the supernatant and a delay in the kinetics of virus release.
Collapse
Affiliation(s)
- Nai-Huei Wu
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Fandan Meng
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Maren Seitz
- Institute of Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Peter Valentin-Weigand
- Institute of Microbiology, University of Veterinary Medicine Hannover, Hannover, Germany
| | - Georg Herrler
- Institute of Virology, University of Veterinary Medicine Hannover, Hannover, Germany
| |
Collapse
|
30
|
Dynamic Virus-Bacterium Interactions in a Porcine Precision-Cut Lung Slice Coinfection Model: Swine Influenza Virus Paves the Way for Streptococcus suis Infection in a Two-Step Process. Infect Immun 2015; 83:2806-15. [PMID: 25916988 DOI: 10.1128/iai.00171-15] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2015] [Accepted: 04/21/2015] [Indexed: 12/17/2022] Open
Abstract
Swine influenza virus (SIV) and Streptococcus suis are common pathogens of the respiratory tract in pigs, with both being associated with pneumonia. The interactions of both pathogens and their contribution to copathogenesis are only poorly understood. In the present study, we established a porcine precision-cut lung slice (PCLS) coinfection model and analyzed the effects of a primary SIV infection on secondary infection by S. suis at different time points. We found that SIV promoted adherence, colonization, and invasion of S. suis in a two-step process. First, in the initial stages, these effects were dependent on bacterial encapsulation, as shown by selective adherence of encapsulated, but not unencapsulated, S. suis to SIV-infected cells. Second, at a later stage of infection, SIV promoted S. suis adherence and invasion of deeper tissues by damaging ciliated epithelial cells. This effect was seen with a highly virulent SIV subtype H3N2 strain but not with a low-virulence subtype H1N1 strain, and it was independent of the bacterial capsule, since an unencapsulated S. suis mutant behaved in a way similar to that of the encapsulated wild-type strain. In conclusion, the PCLS coinfection model established here revealed novel insights into the dynamic interactions between SIV and S. suis during infection of the respiratory tract. It showed that at least two different mechanisms contribute to the beneficial effects of SIV for S. suis, including capsule-mediated bacterial attachment to SIV-infected cells and capsule-independent effects involving virus-mediated damage of ciliated epithelial cells.
Collapse
|
31
|
Precision-cut intestinal slices as a culture system to analyze the infection of differentiated intestinal epithelial cells by avian influenza viruses. J Virol Methods 2014; 212:71-5. [PMID: 25445801 PMCID: PMC7172049 DOI: 10.1016/j.jviromet.2014.10.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 10/14/2014] [Accepted: 10/28/2014] [Indexed: 11/22/2022]
Abstract
Infection of differentiated intestinal epithelial cells, influenza virus, receptors, sialic acid, cell surface. PCIS can be used for virus cultivation. PCIS can be used to analyze infection of target cells by intestinal viruses.
Many viruses infect and replicate in their host via the intestinal tract, e.g. many picornaviruses, several coronaviruses and avian influenza viruses of waterfowl. To analyze infection of enterocytes is a challenging task as culture systems for differentiated intestinal epithelial cells are not readily available and often have a life span that is too short for infection studies. Precision-cut intestinal slices (PCIS) from chicken embryos were prepared and shown that the epithelial cells lining the lumen of the intestine are viable for up to 4 days. Using lectin staining, it was demonstrated that α2,3-linked sialic acids, the preferred receptor determinants of avian influenza viruses, are present on the apical side of the epithelial cells. Furthermore, the epithelial cells (at the tips) of the villi were shown to be susceptible to infection by an avian influenza virus of the H9N2 subtype. This culture system will be useful to analyze virus infection of intestinal epithelial cells and it should be applicable also to the intestine of other species.
Collapse
|
32
|
Innate immune response to a H3N2 subtype swine influenza virus in newborn porcine trachea cells, alveolar macrophages, and precision-cut lung slices. Vet Res 2014; 45:42. [PMID: 24712747 PMCID: PMC4021251 DOI: 10.1186/1297-9716-45-42] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 03/12/2014] [Indexed: 01/03/2023] Open
Abstract
Viral respiratory diseases remain of major importance in swine breeding units. Swine influenza virus (SIV) is one of the main known contributors to infectious respiratory diseases. The innate immune response to swine influenza viruses has been assessed in many previous studies. However most of these studies were carried out in a single-cell population or directly in the live animal, in all its complexity. In the current study we report the use of a trachea epithelial cell line (newborn pig trachea cells – NPTr) in comparison with alveolar macrophages and lung slices for the characterization of innate immune response to an infection by a European SIV of the H3N2 subtype. The expression pattern of transcripts involved in the recognition of the virus, interferon type I and III responses, and the host-response regulation were assessed by quantitative PCR in response to infection. Some significant differences were observed between the three systems, notably in the expression of type III interferon mRNA. Then, results show a clear induction of JAK/STAT and MAPK signaling pathways in infected NPTr cells. Conversely, PI3K/Akt signaling pathways was not activated. The inhibition of the JAK/STAT pathway clearly reduced interferon type I and III responses and the induction of SOCS1 at the transcript level in infected NPTr cells. Similarly, the inhibition of MAPK pathway reduced viral replication and interferon response. All together, these results contribute to an increased understanding of the innate immune response to H3N2 SIV and may help identify strategies to effectively control SIV infection.
Collapse
|