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Lee J, Boas FE, Duran-Struuck R, Gaba RC, Schachtschneider KM, Comin-Anduix B, Galic Z, Haile S, Bassir A, Chiang J. Pigs as Clinically Relevant Models for Synergizing Interventional Oncology and Immunotherapy. J Vasc Interv Radiol 2024; 35:809-817.e1. [PMID: 38219903 DOI: 10.1016/j.jvir.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 10/31/2023] [Accepted: 01/03/2024] [Indexed: 01/16/2024] Open
Abstract
Traditionally, rodent cancer models have driven preclinical oncology research. However, they do not fully recapitulate characteristics of human cancers, and their size poses challenges when evaluating tools in the interventional oncologists' armamentarium. Pig models, however, have been the gold standard for validating surgical procedures. Their size enables the study of image-guided interventions using human ultrasound (US), computed tomography (CT), and magnetic resonance (MR) imaging platforms. Furthermore, pigs have immunologic features that are similar to those of humans, which can potentially be leveraged for studying immunotherapy. Novel pig models of cancer are being developed, but additional research is required to better understand both the pig immune system and malignancy to enhance the potential for pig models in interventional oncology research. This review aims to address the main advantages and disadvantages of using a pig model for interventional oncology and outline the specific characteristics of pig models that make them more suitable for investigation of locoregional therapies.
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Affiliation(s)
- Justin Lee
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - F Edward Boas
- Department of Radiology, City of Hope, Duarte, California
| | - Raimon Duran-Struuck
- Department of Pathobiology, University of Pennsylvania School of Veterinary Medicine, Philadelphia, Pennsylvania
| | - Ron C Gaba
- Department of Radiology, University of Illinois Health, Chicago, Illinois
| | | | - Begonya Comin-Anduix
- Department of Surgery, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Zoran Galic
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Salem Haile
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Ali Bassir
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California
| | - Jason Chiang
- Department of Radiology, David Geffen School of Medicine at UCLA, Los Angeles, California.
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2
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Mattoo SUS, Aganja RP, Kim SC, Jeong CG, Nazki S, Khatun A, Kim WI, Lee SM. A standardized method to study immune responses using porcine whole blood. J Vet Sci 2023; 24:e11. [PMID: 36726276 PMCID: PMC9899947 DOI: 10.4142/jvs.22210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 11/01/2022] [Accepted: 11/08/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Peripheral blood mononuclear cells (PBMCs) are commonly used to assess in vitro immune responses. However, PBMC isolation is a time-consuming procedure, introduces technical variability, and requires a relatively large volume of blood. By contrast, whole blood assay (WBA) is faster, cheaper, maintains more physiological conditions, and requires less sample volume, laboratory training, and equipment. OBJECTIVES Herein, this study aimed to develop a porcine WBA for in vitro evaluation of immune responses. METHODS Heparinized whole blood (WB) was diluted (non-diluted, 1/2, 1/8, and 1/16) in RPMI-1640 media, followed by phorbol myristate acetate and ionomycin. After 24 h, cells were stained for interferon (IFN)-γ secreting T-cells followed by flow cytometry, and the supernatant was analyzed for tumor necrosis factor (TNF)-α. In addition, diluted WB was stimulated by lipopolysaccharide (LPS) and polyinosinic:polycytidylic acid (poly I:C), reference strain KCTC3557 (RS), field isolate (FI), of heat-killed (HK) Streptococcus suis, and porcine reproductive and respiratory syndrome virus (PRRSV). RESULTS The frequency of IFN-γ+CD3+ T-cells and concentration of TNF-α in the supernatant of WB increased with increasing dilution factor and were optimal at 1/8. WB TNF-α and interleukin (IL)-10 cytokine levels increased significantly following stimulation with LPS or poly I:C. Further, FI and RS induced IL-10 production in WB. Additionally, PRRSV strains increased the frequency of IFN-γ+CD4-CD8+ cells, and IFN-γ was non-significantly induced in the supernatant of re-stimulated samples. CONCLUSIONS We propose that the WBA is a rapid, reliable, and simple method to evaluate immune responses and WB should be diluted to trigger immune cells.
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Affiliation(s)
| | - Ram Prasad Aganja
- College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Korea
| | - Seung-Chai Kim
- College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Korea
| | - Chang-Gi Jeong
- College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Korea
| | - Salik Nazki
- The Pirbright Institute, Pirbright, GU24 0NF, United Kingdom
| | - Amina Khatun
- Department of Veterinary Pathology, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka 1207, Bangladesh
| | - Won-Il Kim
- College of Veterinary Medicine, Jeonbuk National University, Iksan 54596, Korea.
| | - Sang-Myeong Lee
- College of Veterinary Medicine, Chungbuk National University, Cheongju 28644, Korea.
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3
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Railean V, Buszewski B. Flow Cytometry - Sophisticated Tool for Basic Research or/and Routine Diagnosis; Impact of the Complementarity in Both Pre- as Well as Clinical Studies. Crit Rev Anal Chem 2022:1-23. [PMID: 36576036 DOI: 10.1080/10408347.2022.2154596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Flow cytometry is a sophisticated technology used widely in both basic research and as a routine tool in clinical diagnosis. The technology has progressed from single parameter detection in the 1970s and 1980s to high end multicolor analysis, with currently 30 parameters detected simultaneously, allowing the identification and purification of rare subpopulations of cells of interest. Flow cytometry continues to evolve and expand to facilitate the investigation of new diagnostic and therapeutic avenues. The present review gives an overview of basic theory and instrumentation, presents and compares the advantages and disadvantages of conventional, spectral and imaging flow cytometry as well as mass cytometry. Current methodologies and applications in both research, pre- and clinical settings are discussed, as well as potential limitations and future evolution. This finding encourages the reader to promote such relationship between basic science, diagnosis and multidisciplinary approach since the standard methods have limitations (e.g., in differentiating the cells after staining). Moreover, such path inspires future cytometry specialists develop new/alternative frontiers between pre- and clinical diagnosis and be more flexible in designing the study for both human as well as veterinary medicine.
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Affiliation(s)
- Viorica Railean
- Department of Infectious, Invasive Diseases and Veterinary Administration, Institute of Veterinary Medicine, Toruń, Poland
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Torun, Poland
| | - Bogusław Buszewski
- Centre for Modern Interdisciplinary Technologies, Nicolaus Copernicus University, Torun, Poland
- Department of Environmental Chemistry and Bioanalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Toruń, Poland
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4
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Diks AM, Bonroy C, Teodosio C, Groenland RJ, de Mooij B, de Maertelaere E, Neirynck J, Philippé J, Orfao A, van Dongen JJM, Berkowska MA. Impact of blood storage and sample handling on quality of high dimensional flow cytometric data in multicenter clinical research. J Immunol Methods 2019; 475:112616. [PMID: 31181213 DOI: 10.1016/j.jim.2019.06.007] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 05/21/2019] [Accepted: 06/04/2019] [Indexed: 01/20/2023]
Abstract
Obtaining reliable and reproducible high quality data in multicenter clinical research settings requires design of optimal standard operating procedures. While the need for standardization in sample processing and data analysis is well-recognized, the impact of sample handling in the pre-analytical phase remains underestimated. We evaluated the impact of sample storage time (≈transport time) and temperature, type of anticoagulant, and limited blood volume on reproducibility of flow cytometric studies. EDTA and Na-Heparin samples processed with the EuroFlow bulk lysis protocol, stained and stored at 4 °C showed fairly stable expression of cell surface markers and distribution of the major leukocyte populations for up to 72 h. Additional sample fixation (1% PFA, Fix & Perm) did not have any beneficial effects. Blood samples stored for <24 h at room temperature before processing and staining seemed suitable for reliable immunophenotyping, although losses in absolute cell numbers were observed. The major losses were observed in myeloid cells and monocytes, while lymphocytes seemed less affected. Expression of cell surface markers and population distribution were more stable in Na-Heparin blood than in EDTA blood. However, storage of Na-Heparin samples was associated with faster decrease in leukocyte counts over time. Whole blood fixation strategies (Cyto-Chex, TransFix) improved long-term population distribution, but were detrimental for expression of cellular markers. The main conclusions from this study on healthy donor blood samples were successfully confirmed in EDTA clinical (patient) blood samples with different time delays until processing. Finally, we recognized the need for adjustments in bulk lysis in case of insufficient blood volumes. Despite clear overall conclusions, individual markers and cell populations had different preferred conditions. Therefore, specific guidelines for sample handling should always be adjusted to the clinical application and the main target leukocyte population.
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Affiliation(s)
- A M Diks
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - C Bonroy
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium; Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - C Teodosio
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - R J Groenland
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - B de Mooij
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
| | - E de Maertelaere
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - J Neirynck
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - J Philippé
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium; Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - A Orfao
- Cancer Research Centre (IBMCC, USAL-CSIC; CIBERONC CB16/12/00400), Institute for Biomedical Research of Salamanca (IBSAL), Department of Medicine and Cytometry Service (NUCLEUS Research Support Platform), University of Salamanca (USAL), Salamanca, Spain
| | - J J M van Dongen
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands.
| | - M A Berkowska
- Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Albinusdreef 2, 2333 ZA, Leiden, the Netherlands
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5
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Bauer T, Sipos W, Stark TD, Käser T, Knecht C, Brunthaler R, Saalmüller A, Hofmann T, Ehling-Schulz M. First Insights Into Within Host Translocation of the Bacillus cereus Toxin Cereulide Using a Porcine Model. Front Microbiol 2018; 9:2652. [PMID: 30464760 PMCID: PMC6234764 DOI: 10.3389/fmicb.2018.02652] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 10/17/2018] [Indexed: 11/13/2022] Open
Abstract
Bacillus cereus is a gram-positive pathogen mainly known to evoke two types of foodborne poisonings. The diarrheal syndrome is caused by enterotoxins produced during growth in the intestine. In contrast, the emetic type is caused by the dodecadepsipeptide cereulide pre-formed in food. Usually, both diseases are self-limiting but occasionally more severe forms, including fatal ones, are reported. Since the mechanisms of cereulide toxin uptake and translocation within the body as well as the mechanism of its toxic action are still unknown, we used a porcine model to investigate the uptake, routes of excretion and distribution of cereulide within the host. Pigs were orally challenged with cereulide using single doses of 10-150 μg cereulide kg-1 body weight to study acute effects or using daily doses of 10 μg cereulide kg-1 body weight administered for 7 days to investigate effects of longtime, chronic exposure. Our study showed that part of cereulide ingested with food is rapidly excreted with feces while part of the cereulide toxin is absorbed, passes through membranes and is distributed within the body. Results from the chronic trial indicate bioaccumulation of cereulide in certain tissues and organs, such as kidney, liver, muscles and fat tissues. Beside its detection in various tissues and organs, our study also demonstrated that cereulide is able to cross the blood-brain-barrier, which may partially explain the cerebral effects reported from human intoxication cases. The neurobehavioral symptoms, such as seizures and lethargy, observed in our porcine model resemble those reported from human food borne intoxications. The rapid onset of these symptoms indicates direct effects of cereulide on the central nervous system (CNS), which warrant further research. The porcine model presented here might be useful to study the specific neurobiological effect in detail. Furthermore, our study revealed that typical diagnostic specimens used in human medicine, such as blood samples and urine, are not suitable for diagnostics of food borne cereulide intoxications. Instead, screening of fecal samples by SIDA-LC-MS may represent a simple and non-invasive method for detection of cereulide intoxications in clinical settings as well as in foodborne outbreak situations.
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Affiliation(s)
- Tobias Bauer
- Department of Pathobiology, Functional Microbiology, Institute of Microbiology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Wolfgang Sipos
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Timo D Stark
- Chair of Food Chemistry and Molecular Sensory Science, Technische Universität München, Freising, Germany
| | - Tobias Käser
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria.,Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University (NCSU), Raleigh, NC, United States
| | - Christian Knecht
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Rene Brunthaler
- Department of Pathobiology, Institute of Pathology and Forensic Veterinary Medicine, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Armin Saalmüller
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna, Vienna, Austria
| | - Thomas Hofmann
- Chair of Food Chemistry and Molecular Sensory Science, Technische Universität München, Freising, Germany
| | - Monika Ehling-Schulz
- Department of Pathobiology, Functional Microbiology, Institute of Microbiology, University of Veterinary Medicine Vienna, Vienna, Austria
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6
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Gou H, Zhao M, Fan S, Yuan J, Liao J, He W, Xu H, Chen J. Autophagy induces apoptosis and death of T lymphocytes in the spleen of pigs infected with CSFV. Sci Rep 2017; 7:13577. [PMID: 29051589 PMCID: PMC5648758 DOI: 10.1038/s41598-017-14082-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Accepted: 10/02/2017] [Indexed: 01/04/2023] Open
Abstract
Lymphocyte depletion and immunosuppression are typical clinical characteristics of pigs infected with classical swine fever virus (CSFV). The apoptosis of virus-infected and bystander cells plays a role in the immunopathology of classical swine fever (CSF). Here, we offer the first evidence that autophagy is involved in apoptosis and death of T lymphocytes in the spleen of pigs infected with CSFV. Using immunohistochemical assays, we observed that more LC3II-positive cells appear in the T-cell zone of spleens. Spleen cell apoptosis was demonstrated using flow cytometry and TUNEL staining. Confocal immunofluorescence revealed that partial LC3II-positive cells were simultaneously TUNEL-positive. By cultivating spleen cells ex vivo, we demonstrated that the inhibition of autophagy by 3-MA treatment inhibited apoptosis and death of T lymphocytes caused by CSFV infection but did not have this effect on B lymphocytes. Further observations demonstrated that uninfected cells in the spleen were also undergoing autophagy in vivo. In summary, these results linked autophagy with the apoptosis and cell death of splenic T cells, providing a new outlook to understand the mechanism of T lymphocyte depletion and immunosuppression during CSF.
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Affiliation(s)
- Hongchao Gou
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Mingqiu Zhao
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Shuangqi Fan
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jin Yuan
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jiedan Liao
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Wencheng He
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Hailuan Xu
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China
| | - Jinding Chen
- College of Veterinary Medicine; South China Agricultural University, Guangzhou, People's Republic of China.
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7
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Mair KH, Stadler M, Talker SC, Forberg H, Storset AK, Müllebner A, Duvigneau JC, Hammer SE, Saalmüller A, Gerner W. Porcine CD3(+)NKp46(+) Lymphocytes Have NK-Cell Characteristics and Are Present in Increased Frequencies in the Lungs of Influenza-Infected Animals. Front Immunol 2016; 7:263. [PMID: 27471504 PMCID: PMC4943943 DOI: 10.3389/fimmu.2016.00263] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 06/21/2016] [Indexed: 12/21/2022] Open
Abstract
The CD3−NKp46+ phenotype is frequently used for the identification of natural killer (NK) cells in various mammalian species. Recently, NKp46 expression was analyzed in more detail in swine. It could be shown that besides CD3−NKp46+ lymphocytes, a small but distinct population of CD3+NKp46+ cells exists. In this study, we report low frequencies of CD3+NKp46+ lymphocytes in blood, lymph nodes, and spleen, but increased frequencies in non-lymphatic organs, like liver and lung. Phenotypic analyses showed that the majority of CD3+NKp46+ cells coexpressed the CD8αβ heterodimer, while a minor subset expressed the TCR-γδ, which was associated with a CD8αα+ phenotype. Despite these T-cell associated receptors, the majority of CD3+NKp46+ lymphocytes displayed a NK-related phenotype (CD2+CD5−CD6−CD16+perforin+) and expressed mRNA of NKp30, NKp44, and NKG2D at similar levels as NK cells. Functional tests showed that CD3+NKp46+ lymphocytes produced IFN-γ and proliferated upon cytokine stimulation to a similar extent as NK cells, but did not respond to the T-cell mitogen, ConA. Likewise, CD3+NKp46+ cells killed K562 cells with an efficiency comparable to NK cells. Cross-linking of NKp46 and CD3 led to degranulation of CD3+NKp46+ cells, indicating functional signaling pathways for both receptors. Additionally, influenza A(H1N1)pdm09-infected pigs had reduced frequencies of CD3+NKp46+ lymphocytes in blood, but increased frequencies in the lung in the early phase of infection. Thus, CD3+NKp46+ cells appear to be involved in the early phase of influenza infections. In summary, we describe a lymphocyte population in swine with a mixed phenotype of NK and T cells, with results so far indicating that this cell population functionally resembles NK cells.
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Affiliation(s)
- Kerstin H Mair
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Maria Stadler
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Stephanie C Talker
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Hilde Forberg
- Department of Laboratory Services, Norwegian Veterinary Institute , Oslo , Norway
| | - Anne K Storset
- Department of Food Safety and Infection Biology, Norwegian University of Life Sciences , Oslo , Norway
| | - Andrea Müllebner
- Department of Biomedical Sciences, Institute of Medical Biochemistry, University of Veterinary Medicine Vienna , Vienna , Austria
| | - J Catharina Duvigneau
- Department of Biomedical Sciences, Institute of Medical Biochemistry, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Sabine E Hammer
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Armin Saalmüller
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
| | - Wilhelm Gerner
- Department of Pathobiology, Institute of Immunology, University of Veterinary Medicine Vienna , Vienna , Austria
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8
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Pockley AG, Foulds GA, Oughton JA, Kerkvliet NI, Multhoff G. Immune Cell Phenotyping Using Flow Cytometry. ACTA ACUST UNITED AC 2015; 66:18.8.1-18.8.34. [PMID: 26523471 DOI: 10.1002/0471140856.tx1808s66] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Fluorescent immunophenotyping uses fluorescently-conjugated antibodies to identify, characterize and quantify distinct subpopulations of cells within heterogeneous single-cell populations, either in the context of tissue (using fluorescence and imaging microscopy) or in a single-cell suspension (using multiparameter imaging microscopy, imaging cytometry, and/or flow cytometry). Flow cytometry is an optical, laser-based technology which analyzes the physical and fluorescent properties of cells in suspension in real-time as they flow through the instrument. This approach has a number of advantages over other techniques that can be used for characterizing cell populations in single-cell suspensions, in that it can nonsubjectively interrogate up to millions of cells and acquire data on the presence of different cell subpopulations and phenotypical changes within these populations in seconds. This unit describes basic procedures for the direct and indirect immunofluorescent staining of surface and intracellular proteins that are expressed by lymphoid cells which have been isolated from tissues or blood. Protocols for the resolution of dead cells and for the fixation of cells are also included. This unit also provides essential information relating to the selection and titration of antibodies, fluorochrome choice, spectral overlap and compensation, the use of controls, and the standardization of data acquisition and analysis. It also highlights new technologies and platforms that can be used to interrogate the presence of cell subpopulations and their phenotype to an even greater depth.
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Affiliation(s)
- A Graham Pockley
- John van Geest Cancer Research Center, Nottingham Trent University, Nottingham, United Kingdom.,Chromocyte Limited, Electric Works, Sheffield, United Kingdom
| | - Gemma A Foulds
- John van Geest Cancer Research Center, Nottingham Trent University, Nottingham, United Kingdom
| | - Julie A Oughton
- Emeritus, Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon
| | - Nancy I Kerkvliet
- Emeritus, Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon
| | - Gabriele Multhoff
- Department of Radiation Oncology, Klinikum rechts der Isar, Technische Universität München, Munich, Germany.,Clinical Cooperation Group "Innate Immunity in Tumor Biology," Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, Germany
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9
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Rodríguez-Gómez IM, Käser T, Gómez-Laguna J, Lamp B, Sinn L, Rümenapf T, Carrasco L, Saalmüller A, Gerner W. PRRSV-infected monocyte-derived dendritic cells express high levels of SLA-DR and CD80/86 but do not stimulate PRRSV-naïve regulatory T cells to proliferate. Vet Res 2015; 46:54. [PMID: 25990845 PMCID: PMC4438515 DOI: 10.1186/s13567-015-0186-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 04/28/2015] [Indexed: 11/26/2022] Open
Abstract
In vitro generated monocyte-derived dendritic cells (moDCs) have frequently been used to study the influence of porcine reproductive and respiratory syndrome virus (PRRSV) infection on antigen presenting cells. However, obtained results have often been conflicting in regard to expression of co-stimulatory molecules and interaction with T cells. In this study we performed a detailed phenotypic characterisation of PRRSV-infected moDCs and non-infected moDCs. For CD163 and CD169, which are involved in PRRSV-entry into host cells, our results show that prior to infection porcine moDCs express high levels of CD163 but only very low levels for CD169. Following infection with either PRRSV-1 or PRRSV-2 strains after 24 h, PRRSV-nucleoprotein (N-protein)+ and N-protein− moDCs derived from the same microculture were analyzed for expression of swine leukocyte antigen-DR (SLA-DR) and CD80/86. N-protein+ moDCs consistently expressed higher levels of SLA-DR and CD80/86 compared to N-protein− moDCs. We also investigated the influence of PRRSV-infected moDCs on proliferation and frequency of Foxp3+ regulatory T cells present within CD4+ T cells in in vitro co-cultures. Neither CD3-stimulated nor unstimulated CD4+ T cells showed differences in regard to proliferation and frequency of Foxp3+ T cells following co-cultivation with either PRRSV-1 or PRRSV-2 infected moDCs. Our results suggest that a more detailed characterisation of PRRSV-infected moDCs will lead to more consistent results across different laboratories and PRRSV strains as indicated by the major differences in SLA-DR and CD80/86 expression between PRRSV-infected and non-infected moDCs present in the same microculture.
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Affiliation(s)
- Irene M Rodríguez-Gómez
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria. .,Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, "International Excellence Agrifood Campus - CeiA3", 14014, Córdoba, Spain.
| | - Tobias Käser
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria. .,Vaccine and Infectious Disease Organization-International Vaccine Centre (VIDO-InterVac), University of Saskatchewan, 120 Veterinary Road, S7N 5E3, Saskatoon, Saskatchewan, Canada.
| | | | - Benjamin Lamp
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria.
| | - Leonie Sinn
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria.
| | - Till Rümenapf
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria.
| | - Librado Carrasco
- Department of Anatomy and Comparative Pathology, Faculty of Veterinary Medicine, University of Córdoba, "International Excellence Agrifood Campus - CeiA3", 14014, Córdoba, Spain.
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria.
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Veterinärplatz 1, 1210, Vienna, Austria.
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10
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Talker SC, Koinig HC, Stadler M, Graage R, Klingler E, Ladinig A, Mair KH, Hammer SE, Weissenböck H, Dürrwald R, Ritzmann M, Saalmüller A, Gerner W. Magnitude and kinetics of multifunctional CD4+ and CD8β+ T cells in pigs infected with swine influenza A virus. Vet Res 2015; 46:52. [PMID: 25971313 PMCID: PMC4429459 DOI: 10.1186/s13567-015-0182-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2014] [Accepted: 04/14/2015] [Indexed: 11/12/2022] Open
Abstract
Although swine are natural hosts for influenza A viruses, the porcine T-cell response to swine influenza A virus (FLUAVsw) infection has been poorly characterized so far. We have studied Ki-67 expression and FLUAVsw-specific production of IFN-γ, TNF-α and IL-2 in CD4+ and CD8β+ T cells isolated from piglets that had been intratracheally infected with a H1N2 FLUAVsw isolate. IFN-γ+TNF-α+IL-2+ multifunctional CD4+ T cells were present in the blood of all infected animals at one or two weeks after primary infection and their frequency increased in four out of six animals after homologous secondary infection. These cells produced higher amounts of IFN-γ, TNF-α and IL-2 than did CD4+ T cells that only produced a single cytokine. The vast majority of cytokine-producing CD4+ T cells expressed CD8α, a marker associated with activation and memory formation in porcine CD4+ T cells. Analysis of CD27 expression suggested that FLUAVsw-specific CD4+ T cells included both central memory and effector memory populations. Three out of six animals showed a strong increase of Ki-67+perforin+ CD8β+ T cells in blood one week post infection. Blood-derived FLUAVsw-specific CD8β+ T cells could be identified after an in vitro expansion phase and were multifunctional in terms of CD107a expression and co-production of IFN-γ and TNF-α. These data show that multifunctional T cells are generated in response to FLUAVsw infection of pigs, supporting the idea that T cells contribute to the efficient control of infection.
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Affiliation(s)
- Stephanie C Talker
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Hanna C Koinig
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria. .,University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.
| | - Maria Stadler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Robert Graage
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria. .,Present address: Institute of Veterinary Pathology, Vetsuisse-Faculty, University of Zurich, Zurich, Switzerland.
| | - Eva Klingler
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.
| | - Andrea Ladinig
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria.
| | - Kerstin H Mair
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Sabine E Hammer
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Herbert Weissenböck
- Institute of Pathology and Forensic Veterinary Medicine, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Ralf Dürrwald
- Viral Vaccines, Business Unit Animal Health, IDT Biologika GmbH, Dessau-Rosslau, Germany.
| | - Mathias Ritzmann
- University Clinic for Swine, Department for Farm Animals and Veterinary Public Health, University of Veterinary Medicine, Vienna, Austria. .,Present address: Clinic for Swine, Ludwig-Maximilians-University, Munich, Germany.
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
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11
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Jung M, Shin MK, Cha SB, Shin SW, Yoo A, Lee WJ, Park HT, Park JH, Kim B, Jung YK, Yoo HS. Supplementation of dietary germanium biotite enhances induction of the immune responses by foot-and-mouth disease vaccine in cattle. BMC Vet Res 2014; 10:179. [PMID: 25255918 PMCID: PMC4236827 DOI: 10.1186/s12917-014-0179-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 08/04/2014] [Indexed: 11/16/2022] Open
Abstract
Background After the recent outbreak of foot-and-mouth disease (FMD) in Korea, a vaccination policy has been applied to control the disease. In addition, several non-specific immune stimulators have been used without any scientific evidence that they would enhance the immune response after FMD vaccination and/or protect against FMD. Based on the current situation, the aim of this study was to evaluate the effect of the non-specific immune stimulator germanium biotite on FMD vaccination and immune responses in cattle. To achieve our goal, immune responses to FMD vaccination, such as levels of IgG and IgA, antibody duration, and virus-neutralizing titers were investigated after germanium biotite feeding. The PBMC typing and proliferative response after stimulation with mitogens, the cytokines expression level of PBMC, and the lysozyme activity in the serum were measured to evaluate the immune enhancing effects of germanium biotite following its administration. Results Following the first vaccination, high level of IgG (at 4 weeks) and IgA (at 2 and 31 weeks) titers in serum and saliva were observed in the germanium biotite-feeding group (p < 0.05). The germanium biotite group also showed high and longstanding inhibition percentage value in ELISA assay at 31 weeks (p < 0.05). Generally, higher virus-neutralizing antibody titers were observed in the feeding group at 20 and 31 weeks after vaccination. Following the feeding germanium biotite, the germanium biotite group showed increased subpopulation of CD4+ lymphocytes and MHC I+II+ cells in PBMCs at 23 week, responding to stimulation of ConA. The levels of IFN-γ (at 3 and 8 weeks), IL-1α (at 3, 11, and 23 weeks), IL-1β (at 3, 8, and 11 weeks), and IL-4 (at 8 and 11 weeks) gene expression were also significantly increased in the feeding group (p < 0.01 and p < 0.05). Feeding with germanium biotite increased the lymphocytes’ proliferative response to the stimulation of ConA and LPS at 23 weeks and lysozyme activity at 9 weeks after feeding. Conclusions These results suggest that germanium biotite feeding could increase the protection against FMD virus infection via the induction of higher humoral and cellular immune responses in cattle.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | - Han Sang Yoo
- Department of Infectious Diseases, College of Veterinary Medicine, Seoul National University, Seoul 151-742, South Korea.
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12
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Sedlak C, Patzl M, Saalmüller A, Gerner W. CD2 and CD8α define porcine γδ T cells with distinct cytokine production profiles. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2014; 45:97-106. [PMID: 24561103 DOI: 10.1016/j.dci.2014.02.008] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/12/2014] [Accepted: 02/13/2014] [Indexed: 06/03/2023]
Abstract
γδ T cells are a remarkably prominent T-cell subset in swine with a high prevalence in blood. Phenotypic analyses in this study showed that CD2(-) γδ T cells in their vast majority had a CD8α(-)SLA-DR(-)CD27(+) phenotype. CD2(+) γδ T cells dominated in spleen and lymph nodes and had a more heterogeneous phenotype. CD8α(+)SLA-DR(-)CD27(+) γδ T cells prevailed in blood, spleen and lymph nodes whereas in liver a CD8α(+)SLA-DR(+)CD27(-) phenotype dominated, indicating an enrichment of terminally differentiated γδ T cells. γδ T cells were also investigated for their potential to produce IFN-γ, TNF-α and IL-17A. Within CD2(+) γδ T cells, IFN-γ and TNF-α single-producers as well as IFN-γ/TNF-α double-producers dominated, which had a CD8α(+)CD27(+/-) phenotype. IL-17A-producing γδ T cells were only found within CD2(-) γδ T cells, mostly co-produced TNF-α and had a rare CD8α(+)CD27(-) phenotype. However, quantitatively TNF-α single-producers strongly dominated within CD2(-) γδ T cells. In summary, our data identify CD2 and CD8α as important molecules correlating with functional differentiation.
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Affiliation(s)
- Corinna Sedlak
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Martina Patzl
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine, Vienna, Austria.
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13
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Optimization of fixed-permeabilized cell monolayers for high throughput micro-neutralizing antibody assays: Application to the zebrafish/viral hemorrhagic septicemia virus (vhsv) model. J Virol Methods 2013; 193:627-32. [DOI: 10.1016/j.jviromet.2013.07.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Revised: 07/24/2013] [Accepted: 07/26/2013] [Indexed: 11/24/2022]
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14
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Turaç G, Hindley CJ, Thomas R, Davis JA, Deleidi M, Gasser T, Karaöz E, Pruszak J. Combined flow cytometric analysis of surface and intracellular antigens reveals surface molecule markers of human neuropoiesis. PLoS One 2013; 8:e68519. [PMID: 23826393 PMCID: PMC3691147 DOI: 10.1371/journal.pone.0068519] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2013] [Accepted: 05/30/2013] [Indexed: 02/03/2023] Open
Abstract
Surface molecule profiles undergo dynamic changes in physiology and pathology, serve as markers of cellular state and phenotype and can be exploited for cell selection strategies and diagnostics. The isolation of well-defined cell subsets is needed for in vivo and in vitro applications in stem cell biology. In this technical report, we present an approach for defining a subset of interest in a mixed cell population by flow cytometric detection of intracellular antigens. We have developed a fully validated protocol that enables the co-detection of cluster of differentiation (CD) surface antigens on fixed, permeabilized neural cell populations defined by intracellular staining. Determining the degree of co-expression of surface marker candidates with intracellular target population markers (nestin, MAP2, doublecortin, TUJ1) on neuroblastoma cell lines (SH-SY5Y, BE(2)-M17) yielded a combinatorial CD49f-/CD200high surface marker panel. Its application in fluorescence-activated cell sorting (FACS) generated enriched neuronal cultures from differentiated cell suspensions derived from human induced pluripotent stem cells. Our data underlines the feasibility of using the described co-labeling protocol and co-expression analysis for quantitative assays in mammalian neurobiology and for screening approaches to identify much needed surface markers in stem cell biology.
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Affiliation(s)
- Gizem Turaç
- Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
- Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli, Turkey
| | - Christopher J. Hindley
- Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
| | - Ria Thomas
- Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
- Spemann Graduate School of Biology and Medicine (SGBM), Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Jason A. Davis
- Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
| | - Michela Deleidi
- 4 Hertie, Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
| | - Thomas Gasser
- 4 Hertie, Institute for Clinical Brain Research, Department of Neurodegenerative Diseases, German Center for Neurodegenerative Diseases (DZNE), University of Tübingen, Tübingen, Germany
| | - Erdal Karaöz
- Center for Stem Cell and Gene Therapies Research and Practice, Kocaeli University, Kocaeli, Turkey
| | - Jan Pruszak
- Emmy Noether-Group for Stem Cell Biology, Department of Molecular Embryology, Institute of Anatomy and Cell Biology, University of Freiburg, Freiburg, Germany
- Center for Biological Signaling Studies (BIOSS), University of Freiburg, Freiburg, Germany
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15
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Talker SC, Käser T, Reutner K, Sedlak C, Mair KH, Koinig H, Graage R, Viehmann M, Klingler E, Ladinig A, Ritzmann M, Saalmüller A, Gerner W. Phenotypic maturation of porcine NK- and T-cell subsets. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 40:51-68. [PMID: 23352625 DOI: 10.1016/j.dci.2013.01.003] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2012] [Revised: 01/04/2013] [Accepted: 01/07/2013] [Indexed: 06/01/2023]
Abstract
Detailed information concerning the development of the immune system in young pigs is still rudimental. In the present study, we analyzed changes in phenotype and absolute numbers of natural killer cells, γδ T cells, T helper cells, regulatory T cells and cytolytic T cells in the blood of pigs from birth to six months of age. For each lymphocyte subpopulation, a combination of lineage and differentiation markers was investigated by six-color flow cytometry. Major findings were: (i) absolute numbers of γδ T cells strongly increased from birth until 19-25 weeks of age, indicating an important role for these cells during adolescence; (ii) phenotype of T helper cells changed over time from CD8α(-)SLA-DR(-)CD27(+) towards CD8α(+)SLA-DR(+)CD27(-) but CD45RC(-) T helper cells were found immediately after birth, therefore questioning the role of this marker for the identification of T-helper memory cells; (iii) for cytolytic T cells, putative phenotypes for early effector (CD3(+)CD8αβ(+)perforin(+)CD27(dim)) and late effector or memory cells (CD3(+)CD8αβ(+)perforin(+)CD27(-)) could be identified.
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Affiliation(s)
- Stephanie C Talker
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Austria
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16
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CD27 expression discriminates porcine T helper cells with functionally distinct properties. Vet Res 2013; 44:18. [PMID: 23497134 PMCID: PMC3610194 DOI: 10.1186/1297-9716-44-18] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 02/14/2013] [Indexed: 12/11/2022] Open
Abstract
Differentiation of porcine T helper cells is still poorly investigated, partly due to a lack of monoclonal antibodies (mAbs) specific for molecules involved in this process. Recently, we identified a mAb specific for porcine CD27 and showed that CD27 is expressed by all naïve CD8α- T helper cells but divides CD8α+ T helper cells into a CD27+ and a CD27- subset. In the present study, detailed phenotypical and functional analyses of these T-helper cell subpopulations were performed. Naïve CD8α-CD27+ T helper cells predominantly resided in various lymph nodes, whereas higher proportions of CD8α+CD27+ and CD8α+CD27- T helper cells were found in blood, spleen and liver. Both CD8α+CD27+ and CD8α+CD27- T helper cells were capable of producing IFN-γ upon in vitro polyclonal stimulation and antigen-specific restimulation. Experiments with sorted CD8α-CD27+, CD8α+CD27+ and CD8α+CD27- T-helper cell subsets following polyclonal stimulation revealed the lowest proliferative response but the highest ability for IFN-γ and TNF-α production in the CD8α+CD27- subset. Therefore, these cells resembled terminally differentiated effector memory cells as described in human. This was supported by analyses of CCR7 and CD62L expression. CD8α+CD27- T helper cells were mostly CCR7- and had considerably reduced CD62L mRNA levels. In contrast, expression of both homing-receptors was increased on CD8α+CD27+ T helper cells, which also had a proliferation rate similar to naïve CD8α-CD27+ T helper cells and showed intermediate levels of cytokine production. Therefore, similar to human, CD8α+CD27+ T helper cells displayed a phenotype and functional properties of central memory cells.
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17
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Mair KH, Müllebner A, Essler SE, Duvigneau JC, Storset AK, Saalmüller A, Gerner W. Porcine CD8αdim/-NKp46high NK cells are in a highly activated state. Vet Res 2013; 44:13. [PMID: 23452562 PMCID: PMC3599810 DOI: 10.1186/1297-9716-44-13] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Accepted: 01/30/2013] [Indexed: 11/18/2022] Open
Abstract
Natural Killer (NK) cells play a crucial role in the early phase of immune responses against various pathogens. In swine so far only little information about this lymphocyte population exists. Phenotypical analyses with newly developed monoclonal antibodies (mAbs) against porcine NKp46 recently revealed that in blood NKp46- and NKp46+ cells with NK phenotype exist with comparable cytotoxic properties. In spleen a third NKp46-defined population with NK phenotype was observed that was characterised by a low to negative CD8α and increased NKp46 expression. In the current study it is shown that this NKp46high phenotype was correlated with an increased expression of CD16 and CD27 compared to the CD8α+NKp46- and NKp46+ NK-cell subsets in spleen and blood. Additionally NKp46high NK cells expressed elevated levels of the chemokine receptor CXCR3 on mRNA level. Functional analyses revealed that splenic NKp46high NK cells produced much higher levels of Interferon-γ and Tumor Necrosis Factor-α upon stimulation with cytokines or phorbol-12-myristate-13-acetate/Ionomycin compared to the other two subsets. Furthermore, cross-linking of NKp46 by NKp46-specific mAbs led to a superior CD107a expression in the NKp46high NK cells, thus indicating a higher cytolytic capacity of this subset. Therefore porcine splenic NKp46high NK cells represent a highly activated subset of NK cells and may play a profound role in the immune surveillance of this organ.
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Affiliation(s)
- Kerstin H Mair
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Andrea Müllebner
- Institute of Medical Biochemistry, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Sabine E Essler
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - J Catharina Duvigneau
- Institute of Medical Biochemistry, Department of Biomedical Sciences, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Anne K Storset
- Department of Food Safety and Infection Biology, Norwegian School of Veterinary Science, P.O. Box 8146, Dep, N-0033 Oslo, Norway
| | - Armin Saalmüller
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
| | - Wilhelm Gerner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
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18
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Reutner K, Leitner J, Essler SE, Witter K, Patzl M, Steinberger P, Saalmüller A, Gerner W. Porcine CD27: identification, expression and functional aspects in lymphocyte subsets in swine. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2012; 38:321-331. [PMID: 22858410 DOI: 10.1016/j.dci.2012.06.011] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 06/26/2012] [Accepted: 06/29/2012] [Indexed: 06/01/2023]
Abstract
Up to now for Swine Workshop Cluster 2 (SWC2) the orthologous human CD molecule was unknown. By use of the SWC2-specific mAb b30c7 and a retroviral cDNA expression library derived from stimulated porcine peripheral blood mononuclear cells we could identify SWC2 as porcine CD27. Phenotypic analyses of lymphocytes isolated from blood and lymphatic organs revealed that mature T cells in thymus and T cells in the periphery with a naïve phenotype were CD27(+). However, within CD8α(+) T helper and CD8α(+) γδ T cells also CD27(-) cells were present, indicating a down-regulation after antigen contact in vivo. B cells lacked CD27 expression, whereas NK cells expressed intermediate levels. Furthermore, plate-bound mAb b30c7 showed a costimulatory capacity on CD3-activated T cells for proliferation, IFN-γ and TNF-α production. Hence, our data indicate an important role of porcine CD27 for T-cell differentiation and activation as described for humans and mice.
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Affiliation(s)
- Katharina Reutner
- Institute of Immunology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210 Vienna, Austria
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19
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Immune markers and correlates of protection for vaccine induced immune responses. Vaccine 2012; 30:4907-20. [PMID: 22658928 DOI: 10.1016/j.vaccine.2012.05.049] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 05/15/2012] [Accepted: 05/19/2012] [Indexed: 12/15/2022]
Abstract
Vaccines have been a major innovation in the history of mankind and still have the potential to address the challenges posed by chronic intracellular infections including tuberculosis, HIV and malaria which are leading causes of high morbidity and mortality across the world. Markers of an appropriate humoral response currently remain the best validated correlates of protective immunity after vaccination. Despite advancements in the field of immunology over the past few decades currently there are, however, no sufficiently validated immune correlates of vaccine induced protection against chronic infections in neither human nor veterinary medicine. Technological and conceptual advancements within cell-mediated immunology have led to a number of new immunological read-outs with the potential to emerge as correlates of vaccine induced protection. For T(H)1 type responses, antigen-specific production of interferon-gamma (IFN-γ) has been promoted as a quantitative marker of protective cell-mediated immune responses over the past couple of decades. More recently, however, evidence from several infections has pointed towards the quality of the immune response, measured through increased levels of antigen-specific polyfunctional T cells capable of producing a triad of relevant cytokines, as a better correlate of sustained protective immunity against this type of infections. Also the possibilities to measure antigen-specific cytotoxic T cells (CTL) during infection or in response to vaccination, through recombinant major histocompatibility complex (MHC) class I tetramers loaded with relevant peptides, has opened a new vista to include CTL responses in the evaluation of protective immune responses. Here, we review different immune markers and new candidates for correlates of a protective vaccine induced immune response against chronic infections and how successful they have been in defining the protective immunity in human and veterinary medicine.
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20
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Mair KH, Essler SE, Patzl M, Storset AK, Saalmüller A, Gerner W. NKp46 expression discriminates porcine NK cells with different functional properties. Eur J Immunol 2012; 42:1261-71. [DOI: 10.1002/eji.201141989] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kerstin H. Mair
- Department for Pathobiology; Institute of Immunology; University of Veterinary Medicine Vienna; Austria
| | - Sabine E. Essler
- Department for Pathobiology; Institute of Immunology; University of Veterinary Medicine Vienna; Austria
| | - Martina Patzl
- Department for Pathobiology; Institute of Immunology; University of Veterinary Medicine Vienna; Austria
| | - Anne K. Storset
- Department of Food Safety and Infection Biology; Norwegian School of Veterinary Science; Oslo Norway
| | - Armin Saalmüller
- Department for Pathobiology; Institute of Immunology; University of Veterinary Medicine Vienna; Austria
| | - Wilhelm Gerner
- Department for Pathobiology; Institute of Immunology; University of Veterinary Medicine Vienna; Austria
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21
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Leitner J, Reutner K, Essler SE, Popow I, Gerner W, Steinberger P, Saalmüller A. Porcine SWC1 is CD52--final determination by the use of a retroviral cDNA expression library. Vet Immunol Immunopathol 2012; 146:27-34. [PMID: 22336037 PMCID: PMC3334673 DOI: 10.1016/j.vetimm.2012.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2011] [Revised: 01/15/2012] [Accepted: 01/16/2012] [Indexed: 11/16/2022]
Abstract
During the last decades for several species – e.g. swine – many mAb to leukocyte-specific molecules have been developed and clusters of differentiation corresponding to human CD could be established. However, for a significant amount of the raised mAb the corresponding antigens were not characterized on the molecular level and therefore preliminary clusters – in swine so-called Swine workshop clusters (SWC) – were established. These clusters contain antigens with currently no obvious orthologs to human leukocyte differentiation antigens. In this study, we describe the generation of a eukaryotic cDNA expression library from in vitro activated porcine peripheral blood mononuclear cells. Screening of this library with an antibody recognizing SWC1 enabled isolation and sequencing of cDNAs coding for the porcine SWC1 molecule. A BLAST search of the obtained sequence revealed that SWC1 is the orthologous molecule of human CD52. Therefore, our study provides the basis for comparative studies on the role of CD52 in different mammalian species. In addition, the established cDNA library can be used for investigation of additional SWC-defined molecules.
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Affiliation(s)
- Judith Leitner
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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22
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Gabner S, Tonar Z, Tichy A, Saalmüller A, Worliczek HL, Joachim A, Witter K. Immunohistochemical detection and quantification of T cells in the small intestine of Isospora suis-infected piglets-influence of fixation technique and intestinal segment. Microsc Res Tech 2011; 75:408-15. [DOI: 10.1002/jemt.21071] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2011] [Accepted: 07/14/2011] [Indexed: 12/13/2022]
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23
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Worliczek HL, Buggelsheim M, Alexandrowicz R, Witter K, Schmidt P, Gerner W, Saalmüller A, Joachim A. Changes in lymphocyte populations in suckling piglets during primary infections with Isospora suis. Parasite Immunol 2010; 32:232-44. [PMID: 20398223 DOI: 10.1111/j.1365-3024.2009.01184.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Isospora suis, a common intestinal parasite of piglets, causes neonatal porcine coccidiosis, which results in reduced and uneven weaning weights and economic losses in pig production. Nevertheless, there are no detailed studies available on the immune response to I. suis. The aim of this study was to carry out phenotypical characterization of lymphocytes during primary infections on day 3 after birth. Infected and noninfected piglets were investigated between days 7 and 16 after birth. Lymphocytes from the blood, spleen and mesenteric lymph nodes (flow cytometry) and of the jejunal mucosa (immunohistochemistry) were analysed. A decrease in T cells, especially with the phenotype of resting T-helper cells, T-cell receptor-gammadelta-T cells, and regulatory T cells in the blood, spleen and mesenteric lymph nodes was noticeable. An increase in cells with the phenotype of natural killer cells in the spleen of infected animals was found, and the subset of TcR-gammadelta-T cells was strongly increased in the gut mucosa. Our findings suggest an accelerated migration of those cells into the gut. This study provides a strong indication for the involvement of adaptive and innate immune response mechanisms in the primary immune response to I. suis, especially of TcR-gammadelta-T cells as a linkage between innate and adaptive immunity.
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Affiliation(s)
- H L Worliczek
- Institute of Parasitology and Zoology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, Vienna, Austria.
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Witter K, Tonar Z, Matějka VM, Martinča T, Jonák M, Rokošný S, Pirk J. Tissue reaction to three different types of tissue glues in an experimental aorta dissection model: a quantitative approach. Histochem Cell Biol 2009; 133:241-59. [DOI: 10.1007/s00418-009-0656-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2009] [Indexed: 12/14/2022]
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Stadler C, Skogs M, Brismar H, Uhlén M, Lundberg E. A single fixation protocol for proteome-wide immunofluorescence localization studies. J Proteomics 2009; 73:1067-78. [PMID: 19896565 DOI: 10.1016/j.jprot.2009.10.012] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2009] [Revised: 10/16/2009] [Accepted: 10/29/2009] [Indexed: 11/29/2022]
Abstract
Immunofluorescence microscopy is a valuable tool for analyzing protein expression and localization at a subcellular level thus providing information regarding protein function, interaction partners and its role in cellular processes. When performing sample fixation, parameters such as difference in accessibility of proteins present in various cellular compartments as well as the chemical composition of the protein to be studied, needs to be taken into account. However, in systematic and proteome-wide efforts, a need exists for standard fixation protocol(s) that works well for the majority of all proteins independent of subcellular localization. Here, we report on a study with the goal to find a standardized protocol based on the analysis of 18 human proteins localized in 11 different organelles and subcellular structures. Six fixation protocols were tested based on either dehydration by alcohols (methanol, ethanol or iso-propanol) or cross-linking by paraformaldehyde followed by detergent permeabilization (Triton X-100 or saponin) in three human cell lines. Our results show that cross-linking is essential for proteome-wide localization studies and that cross-linking using paraformaldehyde followed by Triton X-100 permeabilization successfully can be used as a single fixation protocol for systematic studies.
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Affiliation(s)
- Charlotte Stadler
- School of Biotechnology, AlbaNova University Center, Royal Institute of Technology (KTH), SE-106 91 Stockholm, Sweden
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Käser T, Gerner W, Hammer SE, Patzl M, Saalmüller A. Detection of Foxp3 protein expression in porcine T lymphocytes. Vet Immunol Immunopathol 2008; 125:92-101. [DOI: 10.1016/j.vetimm.2008.05.007] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2008] [Revised: 04/11/2008] [Accepted: 05/05/2008] [Indexed: 11/24/2022]
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Characterization of porcine circovirus type 2 (PCV2) infection in swine lymphocytes using mitogen-stimulated peripheral blood lymphocytes from healthy PCV2-carrier pigs. Vet Immunol Immunopathol 2008; 124:355-66. [DOI: 10.1016/j.vetimm.2008.04.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2007] [Revised: 03/21/2008] [Accepted: 04/23/2008] [Indexed: 11/23/2022]
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