1
|
Fneish Z, Becker J, Mulenge F, Fneish F, Costa B, Traidl-Hoffmann C, Gilles S, Kalinke U. Birch pollen-induced signatures in dendritic cells are maintained upon additional cytomegalovirus exposure. Gene 2024; 927:148649. [PMID: 38852697 DOI: 10.1016/j.gene.2024.148649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Revised: 05/15/2024] [Accepted: 06/04/2024] [Indexed: 06/11/2024]
Abstract
During the birch pollen season an enhanced incidence of virus infections is noticed, raising the question whether pollen can affect anti-viral responses independent of allergic reactions. We previously showed that birch pollen-treatment of monocyte-derived dendritic cells (moDC) enhances human cytomegalovirus (HCMV) infection. Here we addressed how in moDC the relatively weak pollen response can affect the comparably strong response to HCMV. To this end, moDC were stimulated with aqueous birch pollen extract (APE), HCMV, and APE with HCMV, and transcriptomic signatures were determined after 6 and 24 h of incubation. Infection was monitored upon exposure of moDC to GFP expressing HCMV by flow cytometric analysis of GFP expressing cells. Principle component analysis of RNA sequencing data revealed close clustering of mock and APE treated moDC, whereas HCMV as well as APE with HCMV treated moDC clustered separately after 6 and 24 h of incubation, respectively. Communally induced genes were detected in APE, HCMV and APE with HCMV treated moDC. In APE with HCMV treated moDC, the comparably weak APE induced signatures were maintained after HCMV exposure. In particular, NF-κB/RELA and PI3K/AKT/MAPK signaling were altered upon APE with HCMV exposure. Earlier, we discovered that NF-κB inhibition alleviated APE induced enhancement of HCMV infection. Here we additionally found that impairment of PI3K signaling reduced HCMV infection in HCMV and APE with HCMV treated moDC. APE treated moDC that were exposed to HCMV show a unique host gene signature, which to a large extent is regulated by NF-κB activation and PI3K/AKT/MAPK signaling.
Collapse
Affiliation(s)
- Zeinab Fneish
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Jennifer Becker
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Felix Mulenge
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Firas Fneish
- Institute of Cell Biology and Biophysics, Department of Biostatistics, Leibniz University Hannover, 30419 Hannover, Germany
| | - Bibiana Costa
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany
| | - Claudia Traidl-Hoffmann
- Environmental Medicine, Faculty of Medicine, University of Augsburg, 86156 Augsburg, Germany; Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany; Christine-Kühne Center for Allergy Research and Education (CK-Care), 7265 Davos, Switzerland
| | - Stefanie Gilles
- Environmental Medicine, Faculty of Medicine, University of Augsburg, 86156 Augsburg, Germany; Helmholtz Zentrum München, German Research Center for Environmental Health, 85764 Neuherberg, Germany
| | - Ulrich Kalinke
- Institute for Experimental Infection Research, TWINCORE, Centre for Experimental and Clinical Infection Research, a joint venture between the Helmholtz Centre for Infection Research and the Hannover Medical School, 30625 Hannover, Germany; Cluster of Excellence RESIST (EXC 2155), Hannover Medical School, 30625 Hannover, Germany.
| |
Collapse
|
2
|
Sánchez J, Diez LS, Álvarez L, Munera M, Sánchez A. Changes in Prevalence of IgE Sensitization and Allergenic Exposition over a 10-Year Period in a Tropical Region. Int Arch Allergy Immunol 2024:1-11. [PMID: 39226878 DOI: 10.1159/000540646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Accepted: 07/26/2024] [Indexed: 09/05/2024] Open
Abstract
INTRODUCTION Multiple antigen environmental sources have been identified as possible causes of allergies, but few studies have evaluated changes in the sensitization profiles over time. The aim of this study was to evaluate the changes in IgE sensitization and exposure to dust mites, cats, dogs, and cockroaches over a 10-year period. METHODS During a period of 10 years among patients with asthma, rhinitis and/or atopic dermatitis, we evaluated the annual frequency of atopy to Dermatophagoides farinae, Dermatophagoides pteronyssinus, Blomia tropicalis, Canis familiaris, Felis domesticus and cockroaches (Periplaneta americana and Blatella germanica). Exposure to sources was also assessed using questionnaires (Pets) or direct counts (House dust mites and cockroaches). The association between some risk factors and the prevalence of atopy was explored. RESULTS A total of 6,000 records were included. Among the patients, 82% had IgE sensitization to at least one of the six allergenic sources. Sensitization to Dermatophagoides spp. was the most frequent (>78%). Exposure and sensitization in the first decade of life to Dermatophagoides spp. seem to determine the molecular spreading to other allergenic sources. Exposure to Blomia tropical increases significantly over time (year 2015; 38% vs. year 2022; 51%, p 0.03). Exposure to dogs was higher than with cats but association between atopy and exposure was stronger with cats (OR 27.4, 95% CI: 22.3-33.6, p < 0.01). CONCLUSION Exposure and sensitization in the first decade of life to Dermatophagoides spp. determine the molecular spreading of IgE antibodies to other allergenic sources. Household exposure to dogs and cats seems to be important for the subsequent development of atopy. Sensitization to B. tropicalis and cockroach appears to be mostly from cross-reactivity rather than direct exposure.
Collapse
Affiliation(s)
- Jorge Sánchez
- Group of Clinical and Experimental Allergy, Hospital "Alma mater de Antioquia", University of Antioquia, Medellín, Colombia
| | - Libia-Susana Diez
- Group of Clinical and Experimental Allergy, Hospital "Alma mater de Antioquia", University of Antioquia, Medellín, Colombia
| | - Leidy Álvarez
- Group of Clinical and Experimental Allergy, Hospital "Alma mater de Antioquia", University of Antioquia, Medellín, Colombia
- Group "Ciencias de la vida y la salud, escuela de graduados" University CES, Medellín, Colombia
| | - Marlon Munera
- Medical Research Group (GINUMED), Universitary Corporation Rafael Nuñez, Cartagena, Colombia
| | - Andrés Sánchez
- Group of Clinical and Experimental Allergy, Hospital "Alma mater de Antioquia", University of Antioquia, Medellín, Colombia
- Medical Research Group (GINUMED), Universitary Corporation Rafael Nuñez, Cartagena, Colombia
| |
Collapse
|
3
|
Hosokawa M, Inaba M, Tanaka M, Ogawara KI. Uptake Pathway of Styrene Maleic Acid Copolymer-Coated Lipid Emulsions Under Acidic Tumor Microenvironment. J Pharm Sci 2024; 113:1047-1053. [PMID: 37844758 DOI: 10.1016/j.xphs.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/18/2023]
Abstract
The purpose of this study was to elucidate and compare styrene maleic acid copolymer (SMA)-coated lipid emulsions (SMA emulsions) uptake pathway in vascular endothelial cells and surrounding cancer cells under not only neutral but also acidic pH, which is often observed in tumor microenvironment. DiI-labeled SMA emulsions were prepared using 1-palmitoyl-2-oleoyl-sn‑glycero-3-phosphocholine and triolein. In murine melanoma B16-BL6 (B16) cells and human umbilical vein endothelial cells (HUVEC), DiI-labeled SMA emulsions uptake under near-neutral (pH 7.4) and acidic (pH 6.0) conditions was determined by fluorescent analysis. SMA emulsions were taken up more efficiently into HUVEC than B16 cells under acidic condition in a temperature-dependent manner. Uptake study using endocytosis inhibitors showed that SMA emulsions were taken up by macropinocytosis and clathrin-mediated endocytosis in B16 cells. In HUVEC, however, they were taken up by clathrin- and caveolae-independent, but dynamin-dependent pathway. SMA emulsions would be internalized efficiently into vascular endothelial cells as well as cancer cells under acidic microenvironment via different endocytosis pathways. SMA emulsions could be a promising drug delivery carrier for anti-angiogenic drugs.
Collapse
Affiliation(s)
- Mika Hosokawa
- Laboratory of Pharmaceutics, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan
| | - Moeka Inaba
- Laboratory of Pharmaceutics, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan
| | - Masafumi Tanaka
- Laboratory of Functional Molecular Chemistry, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan
| | - Ken-Ichi Ogawara
- Laboratory of Pharmaceutics, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe 658-8558, Japan.
| |
Collapse
|
4
|
Johnson L, Aglas L, Punz B, Dang HH, Christ C, Pointner L, Wenger M, Hofstaetter N, Hofer S, Geppert M, Andosch A, Ferreira F, Horejs-Hoeck J, Duschl A, Himly M. Mechanistic insights into silica nanoparticle-allergen interactions on antigen presenting cell function in the context of allergic reactions. NANOSCALE 2023; 15:2262-2275. [PMID: 36630186 PMCID: PMC9893438 DOI: 10.1039/d2nr05181h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 11/30/2022] [Indexed: 06/17/2023]
Abstract
The incorporation of nanomaterials into consumer products has substantially increased in recent years, raising concerns about their safety. The inherent physicochemical properties of nanoparticles allow them to cross epithelial barriers and gain access to immunocompetent cells. Nanoparticles in cosmetic products can potentially interact with environmental allergens, forming a protein corona, and together penetrate through damaged skin. Allergen-nanoparticle interactions may influence the immune response, eventually resulting in an adverse or beneficial outcome in terms of allergic reactivity. This study determines the impact of silica nanoparticle-allergen interactions on allergic sensitization by studying the major molecular mechanisms affecting allergic responses. The major birch pollen allergen Bet v 1 was chosen as a model allergen and the birch pollen extract as a comparator. Key events in immunotoxicity including allergen uptake, processing, presentation, expression of costimulatory molecules and cytokine release were studied in human monocyte-derived dendritic cells. Using an in vivo sensitization model, murine Bet v 1-specific IgG and IgE levels were monitored. Upon the interaction of allergens with silica nanoparticles, we observed an enhanced uptake of the allergen by macropinocytosis, improved proteolytic processing, and presentation concomitant with a propensity to increase allergen-specific IgG2a and decrease IgE antibody levels. Together, these events suggest that upon nanoparticle interactions the immune response is biased towards a type 1 inflammatory profile, characterized by the upregulation of T helper 1 (Th1) cells. In conclusion, the interaction of the birch pollen allergen with silica nanoparticles will not worsen allergic sensitization, a state of type 2-inflammation, but rather seems to decrease it by skewing towards a Th1-dominated immune response.
Collapse
Affiliation(s)
- Litty Johnson
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Lorenz Aglas
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Benjamin Punz
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Hieu-Hoa Dang
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Constantin Christ
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Lisa Pointner
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Mario Wenger
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Norbert Hofstaetter
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Sabine Hofer
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Mark Geppert
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Ancuela Andosch
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Fatima Ferreira
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Jutta Horejs-Hoeck
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Albert Duschl
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| | - Martin Himly
- Department of Biosciences and Medical Biology, University of Salzburg, 5020 Salzburg, Austria.
| |
Collapse
|
5
|
Guillet E, Brun E, Ferard C, Szely N, Pallardy M, Biola-Vidamment A. SOC-IV-03 Amorphous silica nanoparticles effects on human dendritic cells promote the T-cell response to the pneumallergen Bet v 1a. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
6
|
Guryanova SV, Finkina EI, Melnikova DN, Bogdanov IV, Bohle B, Ovchinnikova TV. How Do Pollen Allergens Sensitize? Front Mol Biosci 2022; 9:900533. [PMID: 35782860 PMCID: PMC9245541 DOI: 10.3389/fmolb.2022.900533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2022] [Accepted: 05/23/2022] [Indexed: 11/13/2022] Open
Abstract
Plant pollen is one of the main sources of allergens causing allergic diseases such as allergic rhinitis and asthma. Several allergens in plant pollen are panallergens which are also present in other allergen sources. As a result, sensitized individuals may also experience food allergies. The mechanism of sensitization and development of allergic inflammation is a consequence of the interaction of allergens with a large number of molecular factors that often are acting in a complex with other compounds, for example low-molecular-mass ligands, which contribute to the induction a type 2-driven response of immune system. In this review, special attention is paid not only to properties of allergens but also to an important role of their interaction with lipids and other hydrophobic molecules in pollen sensitization. The reactions of epithelial cells lining the nasal and bronchial mucosa and of other immunocompetent cells will also be considered, in particular the mechanisms of the activation of B and T lymphocytes and the formation of allergen-specific antibody responses.
Collapse
Affiliation(s)
- Svetlana V. Guryanova
- Science-Educational Center, M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
- Medical Institute, Peoples’ Friendship University of Russia, The Ministry of Science and Higher Education of the Russian Federation, Moscow, Russia
| | - Ekaterina I. Finkina
- Science-Educational Center, M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
| | - Daria N. Melnikova
- Science-Educational Center, M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
| | - Ivan V. Bogdanov
- Science-Educational Center, M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
| | - Barbara Bohle
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Tatiana V. Ovchinnikova
- Science-Educational Center, M. M. Shemyakin & Yu. A. Ovchinnikov Institute of Bioorganic Chemistry, The Russian Academy of Sciences, Moscow, Russia
- Department of Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
- *Correspondence: Tatiana V. Ovchinnikova,
| |
Collapse
|
7
|
Punz B, Johnson L, Geppert M, Dang HH, Horejs-Hoeck J, Duschl A, Himly M. Surface Functionalization of Silica Nanoparticles: Strategies to Optimize the Immune-Activating Profile of Carrier Platforms. Pharmaceutics 2022; 14:pharmaceutics14051103. [PMID: 35631689 PMCID: PMC9146724 DOI: 10.3390/pharmaceutics14051103] [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: 04/20/2022] [Revised: 05/17/2022] [Accepted: 05/18/2022] [Indexed: 11/16/2022] Open
Abstract
Silica nanoparticles (SiNPs) are generally regarded as safe and may represent an attractive carrier platform for nanomedical applications when loaded with biopharmaceuticals. Surface functionalization by different chemistries may help to optimize protein loading and may further impact uptake into the targeted tissues or cells, however, it may also alter the immunologic profile of the carrier system. In order to circumvent side effects, novel carrier candidates need to be tested thoroughly, early in their development stage within the pharmaceutical innovation pipeline, for their potential to activate or modify the immune response. Previous studies have identified surface functionalization by different chemistries as providing a plethora of modifications for optimizing efficacy of biopharmaceutical (nano)carrier platforms while maintaining an acceptable safety profile. In this study, we synthesized SiNPs and chemically functionalized them to obtain different surface characteristics to allow their application as a carrier system for allergen-specific immunotherapy. In the present study, crude natural allergen extracts are used in combination with alum instead of well-defined active pharmaceutical ingredients (APIs), such as recombinant allergen, loaded onto (nano)carrier systems with immunologically inert and stable properties in suspension. This study was motivated by the hypothesis that comparing different charge states could allow tailoring of the binding capacity of the particulate carrier system, and hence the optimization of biopharmaceutical uptake while maintaining an acceptable safety profile, which was investigated by determining the maturation of human antigen-presenting cells (APCs). The functionalized nanoparticles were characterized for primary and hydrodynamic size, polydispersity index, zeta potential, endotoxin contamination. As potential candidates for allergen-specific immunotherapy, the differently functionalized SiNPs were non-covalently coupled with a highly purified, endotoxin-free recombinant preparation of the major birch pollen allergen Bet v 1 that functioned for further immunological testing. Binding efficiencies of allergen to SiNPs was controlled to determine uptake of API. For efficacy and safety assessment, we employed human monocyte-derived dendritic cells as model for APCs to detect possible differences in the particles’ APC maturation potential. Functionalization of SiNP did not affect the viability of APCs, however, the amount of API physisorbed onto the nanocarrier system, which induced enhanced uptake, mainly by macropinocytosis. We found slight differences in the maturation state of APCs for the differently functionalized SiNP–API conjugates qualifying surface functionalization as an effective instrument for optimizing the immune response towards SiNPs. This study further suggests that surface-functionalized SiNPs could be a suitable, immunologically inert vehicle for the efficient delivery of biopharmaceutical products, as evidenced here for allergen-specific immunotherapy.
Collapse
|
8
|
Wisgrill L, Fyhrquist N, Ndika J, Paalanen L, Berger A, Laatikainen T, Karisola P, Haahtela T, Alenius H. Bet v 1 triggers antiviral-type immune signaling in birch pollen allergic individuals. Clin Exp Allergy 2022; 52:929-941. [PMID: 35147263 PMCID: PMC9540660 DOI: 10.1111/cea.14108] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/22/2022] [Accepted: 02/06/2022] [Indexed: 11/28/2022]
Abstract
Background In allergic patients, clinical symptoms caused by pollen remind of symptoms triggered by viral respiratory infections, which are also the main cause of asthmatic exacerbations. In patients sensitized to birch pollen, Bet v 1 is the major symptom‐causing allergen. Immune mechanisms driving Bet v 1‐related responses of human blood cells have not been fully characterized. Objective To characterize the immune response to Bet v 1 in peripheral blood in patients allergic to birch pollen. Methods The peripheral blood mononuclear cells of birch‐allergic (n = 24) and non‐allergic (n = 47) adolescents were stimulated ex‐vivo followed by transcriptomic profiling. Systems‐biology approaches were employed to decipher disease‐relevant gene networks and deconvolution of associated cell populations. Results Solely in birch‐allergic patients, co‐expression analysis revealed activation of networks of innate immunity and antiviral signalling as the immediate response to Bet v 1 stimulation. Toll‐like receptors and signal transducer transcription were the main drivers of gene expression patterns. Macrophages and dendritic cells were the main cell subsets responding to Bet v 1. Conclusions and clinical relevance In birch‐pollen‐allergic patients, the activated innate immune networks seem to be, in part, the same as those activated during viral infections. This tendency of the immune system to read pollens as viruses may provide new insight to allergy prevention and treatment.
Collapse
Affiliation(s)
- Lukas Wisgrill
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Comprehensive Center for Pediatrics, Medical University of Vienna, Vienna, Austria.,Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Nanna Fyhrquist
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Human microbiome research program (HUMI), Medicum, University of Helsinki, Helsinki, Finland
| | - Joseph Ndika
- Human microbiome research program (HUMI), Medicum, University of Helsinki, Helsinki, Finland
| | - Laura Paalanen
- National Institute for Health and Welfare, Helsinki, Finland; Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Angelika Berger
- Division of Neonatology, Pediatric Intensive Care and Neuropediatrics, Comprehensive Center for Pediatrics, Medical University of Vienna, Vienna, Austria
| | - Tiina Laatikainen
- National Institute for Health and Welfare, Helsinki, Finland; Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Piia Karisola
- Human microbiome research program (HUMI), Medicum, University of Helsinki, Helsinki, Finland
| | - Tari Haahtela
- Skin and Allergy Hospital, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Harri Alenius
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.,Human microbiome research program (HUMI), Medicum, University of Helsinki, Helsinki, Finland
| |
Collapse
|
9
|
Jambari NN, Liddell S, Martinez-Pomares L, Alcocer MJC. Effect of O-linked glycosylation on the antigenicity, cellular uptake and trafficking in dendritic cells of recombinant Ber e 1. PLoS One 2021; 16:e0249876. [PMID: 33914740 PMCID: PMC8084162 DOI: 10.1371/journal.pone.0249876] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 03/29/2021] [Indexed: 11/18/2022] Open
Abstract
Ber e 1, a major Brazil nut allergen, has been successfully produced in the yeast Pichia pastoris expression system as homogenous recombinant Ber e 1 (rBer e 1) with similar physicochemical properties and identical immunoreactivity to its native counterpart, nBer e 1. However, O-linked glycans was detected on the P.pastoris-derived rBer e 1, which is not naturally present in nBer e 1, and may contribute to the allergic sensitisation. In this study, we addressed the glycosylation differences between P. pastoris-derived recombinant Ber e 1 and its native counterparts. We also determined whether this fungal glycosylation could affect the antigenicity and immunogenicity of the rBer e 1 by using dendritic cells (DC) as an immune cell model due to their role in modulating the immune response. We identified that the glycosylation occurs at Ser96, Ser101 and Ser110 on the large chain and Ser19 on the small polypeptide chain of rBer e 1 only. The glycosylation on rBer e 1 was shown to elicit varying degree of antigenicity by binding to different combination of human leukocyte antigens (HLA) at different frequencies compared to nBer e 1 when tested using human DC-T cell assay. However, both forms of Ber e 1 are weak immunogens based from their low response indexes (RI). Glycans present on rBer e 1 were shown to increase the efficiency of the protein recognition and internalization by murine bone marrow-derived dendritic cells (bmDC) via C-type lectin receptors, particularly the mannose receptor (MR), compared to the non-glycosylated nBer e 1 and SFA8, a weak allergenic 2S albumin protein from sunflower seed. Binding of glycosylated rBer e 1 to MR alone was found to not induce the production of IL-10 that modulates bmDC to polarise Th2 cell response by suppressing IL-12 production and DC maturation. Our findings suggest that the O-linked glycosylation by P. pastoris has a small but measurable effect on the in vitro antigenicity of the rBer e 1 compared to its non-glycosylated counterpart, nBer e 1, and thus may influence its applications in diagnostics and immunotherapy.
Collapse
Affiliation(s)
- Nuzul N. Jambari
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
- Laboratory of Food Safety and Food Integrity (FOSFI), Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
| | - Susan Liddell
- Division of Animal Science, School of Biosciences, University of Nottingham, Loughborough, United Kingdom
| | - Luisa Martinez-Pomares
- School of Life Sciences, University of Nottingham, Queen’s Medical Centre, Nottingham, United Kingdom
| | - Marcos J. C. Alcocer
- Division of Food Sciences, School of Biosciences, University of Nottingham, Loughborough, United Kingdom
| |
Collapse
|
10
|
Leboux RJT, Schipper P, van Capel TMM, Kong L, van der Maaden K, Kros A, Jiskoot W, de Jong EC, Bouwstra JA. Antigen Uptake After Intradermal Microinjection Depends on Antigen Nature and Formulation, but Not on Injection Depth. FRONTIERS IN ALLERGY 2021; 2:642788. [PMID: 35386985 PMCID: PMC8974696 DOI: 10.3389/falgy.2021.642788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 03/01/2021] [Indexed: 12/12/2022] Open
Abstract
The skin is an attractive alternative administration route for allergy vaccination, as the skin is rich in dendritic cells (DCs) and is easily accessible. In the skin multiple subsets of DCs with distinct roles reside at different depths. In this study antigen (=allergen for allergy) formulations were injected in ex vivo human skin in a depth-controlled manner by using a hollow microneedle injection system. Biopsies were harvested at the injection site, which were then cultured for 72 h. Subsequently, the crawled-out cells were collected from the medium and analyzed with flow cytometry. Intradermal administration of ovalbumin (OVA, model antigen) solution at various depths in the skin did not affect the migration and maturation of DCs. OVA was taken up efficiently by the DCs, and this was not affected by the injection depth. In contrast, Bet v 1, the major allergen in birch pollen allergy, was barely taken up by dermal DCs (dDCs). Antigens were more efficiently taken up by CD14+ dDCs than CD1a+ dDCs, which in turn were more efficient at taken up antigen than Langerhans cells. Subsequently, both OVA and Bet v 1 were formulated in cationic and anionic liposomes, which altered antigen uptake drastically following intradermal microinjection. While OVA uptake was reduced by formulation in liposomes, Bet v 1 uptake in dDCs was increased by encapsulation in both cationic and anionic liposomes. This highlights the potential use of liposomes as adjuvant in intradermal allergy vaccine delivery. In conclusion, we observed that antigen uptake after intradermal injection was not affected by injection depth, but varied between different antigens and formulation.
Collapse
Affiliation(s)
- Romain J. T. Leboux
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Pim Schipper
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Toni M. M. van Capel
- Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
| | - Lily Kong
- Division of Supramolecular Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
- Tongji School of Pharmacy, HuaZhong University of Science and Technology, Wuhan, China
| | - Koen van der Maaden
- Tumor Immunology Group, Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
- TECO Development GmbH, Rheinbach, Germany
| | - Alexander Kros
- Division of Supramolecular Chemistry, Leiden Institute of Chemistry, Leiden University, Leiden, Netherlands
| | - Wim Jiskoot
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Esther C. de Jong
- Department of Experimental Immunology, Academic Medical Center, Amsterdam, Netherlands
- Esther C. de Jong
| | - Joke A. Bouwstra
- Division of BioTherapeutics, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
- *Correspondence: Joke A. Bouwstra
| |
Collapse
|
11
|
Robledo Retana T, Bradley-Clarke J, Croll T, Rose R, Hoti I, Stagg AJ, Villalba M, Pickersgill RW. Lig v 1 structure and the inflammatory response to the Ole e 1 protein family. Allergy 2020; 75:2395-2398. [PMID: 32359174 DOI: 10.1111/all.14351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 04/12/2020] [Accepted: 04/26/2020] [Indexed: 11/30/2022]
Affiliation(s)
- Tania Robledo Retana
- Department of Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Jack Bradley-Clarke
- Department of Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Tristan Croll
- Cambridge Institute for Medical Research, Cambridge, UK
| | - Ruth Rose
- Protein Production Facility, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Inva Hoti
- Centre for Immunobiology, Blizard Institute, Queen Mary University of London, London, UK
| | - Andrew J Stagg
- Centre for Immunobiology, Blizard Institute, Queen Mary University of London, London, UK
| | - Mayte Villalba
- Biochemistry and Molecular Biology I, Complutense University of Madrid Faculty of Chemical Sciences, Madrid, Spain
| | - Richard W Pickersgill
- Department of Biochemistry, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| |
Collapse
|
12
|
Stratilová B, Řehulka P, Garajová S, Řehulková H, Stratilová E, Hrmova M, Kozmon S. Structural characterization of the Pet c 1.0201 PR-10 protein isolated from roots of Petroselinum crispum (Mill.) Fuss. PHYTOCHEMISTRY 2020; 175:112368. [PMID: 32334148 DOI: 10.1016/j.phytochem.2020.112368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 03/13/2020] [Accepted: 03/28/2020] [Indexed: 06/11/2023]
Abstract
The native dimeric Petroselinum crispum (Mill.) Fuss protein Pet c 1.0201 and a monomeric xyloglucan endotransglycosylase enzyme (Garajova et al., 2008) isolated from the root cells co-purify and share similar molecular masses and acidic isoelectric points. In this work, we determined the complete primary structure of the parsley Pet c 1.0201 protein, based on tryptic and chymotryptic peptides followed by the manual micro-gradient chromatographic separation coupled with offline MALDI-TOF/TOF mass spectrometry. The bioinformatics approach enabled us to include the parsley protein into the PR-10 family, as it exhibited the highest protein sequence identity with the Apium graveolens Api g 1.0201 allergen and the major Daucus carota allergen Dau c 1.0201. Hence, we designated the Petroselinum crispum protein as Pet c 1.0201 and deposited it in the UniProt Knowledgebase under the accession C0HKF5. 3D protein homology modelling and molecular dynamics simulations of the Pet c 1.0201 dimer confirmed the typical structure of the Bet v 1 family allergens, and the potential of the Pet c 1.0201 protein to dimerize in water. However, the behavioural properties of Pet c 1.0201 and the celery allergen Api g 1.0101 differed in the presence of salts due to transiently and stably formed dimeric forms of Pet c 1.0201 and Api g 1.0101, respectively.
Collapse
Affiliation(s)
- Barbora Stratilová
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84538 Bratislava, Slovakia; Faculty of Natural Sciences, Department of Physical and Theoretical Chemistry, Comenius University Bratislava, Mlynská dolina, SK-84215, Bratislava, Slovakia
| | - Pavel Řehulka
- Department of Molecular Pathology and Biology, Faculty of Military Health Sciences, University of Defence, Třebešská 1575, CZ-50001, Hradec Králové, Czech Republic
| | - Soňa Garajová
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84538 Bratislava, Slovakia
| | - Helena Řehulková
- Department of Molecular Pathology and Biology, Faculty of Military Health Sciences, University of Defence, Třebešská 1575, CZ-50001, Hradec Králové, Czech Republic
| | - Eva Stratilová
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84538 Bratislava, Slovakia
| | - Maria Hrmova
- School of Life Science, Huaiyin Normal University, Huai'an, 223300, China; School of Agriculture, Food and Wine, and Waite Research Institute, Waite Research Precinct, University of Adelaide, Glen Osmond, SA, 5064, Australia
| | - Stanislav Kozmon
- Institute of Chemistry, Centre for Glycomics, Slovak Academy of Sciences, Dúbravská cesta 9, SK-84538 Bratislava, Slovakia.
| |
Collapse
|
13
|
Breiteneder H, Diamant Z, Eiwegger T, Fokkens WJ, Traidl‐Hoffmann C, Nadeau K, O’Hehir RE, O’Mahony L, Pfaar O, Torres MJ, Wang DY, Zhang L, Akdis CA. Future research trends in understanding the mechanisms underlying allergic diseases for improved patient care. Allergy 2019; 74:2293-2311. [PMID: 31056763 PMCID: PMC6973012 DOI: 10.1111/all.13851] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 03/28/2019] [Accepted: 04/12/2019] [Indexed: 12/16/2022]
Abstract
The specialties of allergy and clinical immunology have entered the era of precision medicine with the stratification of diseases into distinct disease subsets, specific diagnoses, and targeted treatment options, including biologicals and small molecules. This article reviews recent developments in research and patient care and future trends in the discipline. The section on basic mechanisms of allergic diseases summarizes the current status and defines research needs in structural biology, type 2 inflammation, immune tolerance, neuroimmune mechanisms, role of the microbiome and diet, environmental factors, and respiratory viral infections. In the section on diagnostic challenges, clinical trials, precision medicine and immune monitoring of allergic diseases, asthma, allergic and nonallergic rhinitis, and new approaches to the diagnosis and treatment of drug hypersensitivity reactions are discussed in further detail. In the third section, unmet needs and future research areas for the treatment of allergic diseases are highlighted with topics on food allergy, biologics, small molecules, and novel therapeutic concepts in allergen‐specific immunotherapy for airway disease. Unknowns and future research needs are discussed at the end of each subsection.
Collapse
Affiliation(s)
- Heimo Breiteneder
- Institute of Pathophysiology and Allergy Research Medical University of Vienna Vienna Austria
| | - Zuzana Diamant
- Department of Respiratory Medicine & Allergology, Institute for Clinical Science, Skane University Hospital Lund University Lund Sweden
- Department of Respiratory Medicine, First Faculty of Medicine Charles University and Thomayer Hospital Prague Czech Republic
| | - Thomas Eiwegger
- Division of Immunology and Allergy Food Allergy and Anaphylaxis Program The Department of Pediatrics The Hospital for Sick Children Toronto Ontario Canada
- Research Institute, The Hospital for Sick Children, Translational Medicine Program Toronto Ontario Canada
- Department of Immunology The University of Toronto Toronto Ontario Canada
| | - Wytske J. Fokkens
- Department of Otorhinolaryngology Amsterdam University Medical Centres, Location AMC Amsterdam The Netherlands
| | - Claudia Traidl‐Hoffmann
- Chair and Institute of Environmental Medicine UNIKA‐T, Technical University of Munich and Helmholtz Zentrum München Augsburg Germany
- Christine Kühne Center for Allergy Research and Education Davos Switzerland
| | - Kari Nadeau
- Sean N. Parker Center for Allergy & Asthma Research Stanford University Stanford California
| | - Robyn E. O’Hehir
- Department of Respiratory Medicine, Allergy and Clinical Immunology, Central Clinical School Monash University Melbourne Victoria Australia
- Allergy, Asthma and Clinical Immunology Service Alfred Health Melbourne Victoria Australia
| | - Liam O’Mahony
- Departments of Medicine and Microbiology, APC Microbiome Ireland National University of Ireland Cork Ireland
| | - Oliver Pfaar
- Department of Otorhinolaryngology, Head and Neck Surgery, Section of Rhinology and Allergy University Hospital Marburg, Philipps‐Universität Marburg Marburg Germany
| | - Maria J. Torres
- Allergy Unit Regional University Hospital of MalagaIBIMA‐UMA‐ARADyAL Malaga Spain
| | - De Yun Wang
- Department of Otolaryngology Yong Loo Lin School of Medicine National University of Singapore Singapore
| | - Luo Zhang
- Department of Otolaryngology Head and Neck Surgery and Department of Allergy Beijing Tongren Hospital Beijing China
| | - Cezmi A. Akdis
- Christine Kühne Center for Allergy Research and Education Davos Switzerland
- Swiss Institute of Allergy and Asthma Research (SIAF), University Zurich Davos Switzerland
| |
Collapse
|
14
|
Sánchez J, Sánchez A, Sánchez J. Differences in the Nasal Inflammatory Response to Cynodon dactylon From Rural and Urban Areas in Patients With Allergic Rhinitis. ALLERGY & RHINOLOGY 2018; 9:2152656718815870. [PMID: 30627474 PMCID: PMC6299326 DOI: 10.1177/2152656718815870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Background Epidemiological and experimental studies suggest that air pollution has a negative impact on human health and modifies the environment. However, the clinical implications of changes in environmental allergens secondary to air pollution have been little studied. Objectives To explore if the growth conditions of the Cynodon dactylon (rural vs urban area) modify the inflammatory response among patients with allergic rhinitis. Methodology: Two extracts were prepared for diagnostic test with Cyn d proteins obtained from rural and urban environment. Skin prick test (SPT), nasal challenge test (NCT), and eosinophil count in nasal mucus were performed in 3 groups: healthy subjects without rhinitis, rhinitis with (+) Cyn d, and rhinitis with (−) Cyn d. Results There was a 97% concordance in the positive and negative results of the SPT with the 2 extracts. However, Cyn d-urban extract generated larger wheals (P = .03) and a higher number of patients with rhinitis presented a positive NCT to this extract (n = 7 vs 14, P = .04). Patients with positive NCT had a significant increase in eosinophils in mucus, but there was no difference between the extracts. The healthy controls did not react to the extracts tested in the skin or nasal test. Conclusion The findings suggest that the growth conditions in urban area of Cynodon dactylon can generate changes in the protein extract and have clinical implications in patients with allergic rhinitis.
Collapse
Affiliation(s)
- Jorge Sánchez
- Group of Clinical and Experimental Allergology, IPS University, University of Antioquia, Medellín, Colombia.,Foundation for the Development of Medical and Biological Sciences, Cartagena, Colombia
| | - Andres Sánchez
- Foundation for the Development of Medical and Biological Sciences, Cartagena, Colombia.,Department of Immunology, Rafael Núñez University Foundation, Medellín, Colombia
| | - Jorge Sánchez
- Foundation for the Development of Medical and Biological Sciences, Cartagena, Colombia
| |
Collapse
|
15
|
Perusko M, van Roest M, Stanic‐Vucinic D, Simons PJ, Pieters RHH, Cirkovic Velickovic T, Smit JJ. Glycation of the Major Milk Allergen β-Lactoglobulin Changes Its Allergenicity by Alterations in Cellular Uptake and Degradation. Mol Nutr Food Res 2018; 62:e1800341. [PMID: 30004175 PMCID: PMC6174979 DOI: 10.1002/mnfr.201800341] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/27/2018] [Indexed: 11/17/2022]
Abstract
SCOPE During food processing, the Maillard reaction (МR) may occur, resulting in the formation of glycated proteins. Glycated proteins are of particular importance in food allergies because glycation may influence interactions with the immune system. This study compared native and extensively glycated milk allergen β-lactoglobulin (BLG), in their interactions with cells crucially involved in allergy. METHODS AND RESULTS BLG was glycated in MR and characterized. Native and glycated BLG were tested in experiments of epithelial transport, uptake and degradation by DCs, T-cell cytokine responses, and basophil cell degranulation using ELISA and flow cytometry. Glycation of BLG induced partial unfolding and reduced its intestinal epithelial transfer over a Caco-2 monolayer. Uptake of glycated BLG by bone marrow-derived dendritic cells (BMDC) was increased, although both BLG forms entered BMDC via the same mechanism, receptor-mediated endocytosis. Once inside the BMDC, glycated BLG was degraded faster, which might have led to observed lower cytokine production in BMDC/CD4+ T-cells coculture. Finally, glycated BLG was less efficient in induction of degranulation of BLG-specific IgE sensitized basophil cells. CONCLUSIONS This study suggests that glycation of BLG by MR significantly alters its fate in processes involved in immunogenicity and allergenicity, pointing out the importance of food processing in food allergy.
Collapse
Affiliation(s)
- Marija Perusko
- Faculty of Chemistry–Innovation Center d.o.o.11000BelgradeSerbia
| | - Manon van Roest
- Institute for Risk Assessment SciencesImmunotoxicology GroupUtrecht University3584 CMUtrechtThe Netherlands
| | - Dragana Stanic‐Vucinic
- Center of Excellence for Molecular Food Sciences and Department of BiochemistryUniversity of Belgrade–Faculty of Chemistry11000BelgradeSerbia
| | | | - Raymond H. H. Pieters
- Institute for Risk Assessment SciencesImmunotoxicology GroupUtrecht University3584 CMUtrechtThe Netherlands
| | - Tanja Cirkovic Velickovic
- Center of Excellence for Molecular Food Sciences and Department of BiochemistryUniversity of Belgrade–Faculty of Chemistry11000BelgradeSerbia
- Faculty of Bioscience EngineeringGhent University9000GhentBelgium
- Ghent University Global CampusYeonsu‐Gu21985IncheonSouth Korea
| | - Joost J. Smit
- Institute for Risk Assessment SciencesImmunotoxicology GroupUtrecht University3584 CMUtrechtThe Netherlands
| |
Collapse
|
16
|
Mazzucchelli G, Holzhauser T, Cirkovic Velickovic T, Diaz‐Perales A, Molina E, Roncada P, Rodrigues P, Verhoeckx K, Hoffmann‐Sommergruber K. Current (Food) Allergenic Risk Assessment: Is It Fit for Novel Foods? Status Quo and Identification of Gaps. Mol Nutr Food Res 2018; 62:1700278. [PMID: 28925060 PMCID: PMC5814866 DOI: 10.1002/mnfr.201700278] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 07/28/2017] [Indexed: 01/08/2023]
Abstract
Food allergies are recognized as a global health concern. In order to protect allergic consumers from severe symptoms, allergenic risk assessment for well-known foods and foods containing genetically modified ingredients is installed. However, population is steadily growing and there is a rising need to provide adequate protein-based foods, including novel sources, not yet used for human consumption. In this context safety issues such as a potential increased allergenic risk need to be assessed before marketing novel food sources. Therefore, the established allergenic risk assessment for genetically modified organisms needs to be re-evaluated for its applicability for risk assessment of novel food proteins. Two different scenarios of allergic sensitization have to be assessed. The first scenario is the presence of already known allergenic structures in novel foods. For this, a comparative assessment can be performed and the range of cross-reactivity can be explored, while in the second scenario allergic reactions are observed toward so far novel allergenic structures and no reference material is available. This review summarizes the current analytical methods for allergenic risk assessment, highlighting the strengths and limitations of each method and discussing the gaps in this assessment that need to be addressed in the near future.
Collapse
Affiliation(s)
- Gabriel Mazzucchelli
- Laboratory of Mass Spectrometry – MolSysDepartment of ChemistryUniversity of LiegeLiegeBelgium
| | | | - Tanja Cirkovic Velickovic
- Center of Excellence for Molecular Food SciencesUniversity of Belgrade – Faculty of ChemistryBelgradeSerbia
- Ghent University Global CampusYeonsu‐guIncheonSouth Korea
| | | | | | - Paola Roncada
- Istituto Sperimentale Italiano Lazzaro SpallanzaniMilanoItaly
| | - Pedro Rodrigues
- CCMARCenter of Marine ScienceUniversity of AlgarveFaroPortugal
| | | | | |
Collapse
|
17
|
Dendritic Cells and Their Role in Allergy: Uptake, Proteolytic Processing and Presentation of Allergens. Int J Mol Sci 2017; 18:ijms18071491. [PMID: 28696399 PMCID: PMC5535981 DOI: 10.3390/ijms18071491] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 07/04/2017] [Accepted: 07/05/2017] [Indexed: 12/13/2022] Open
Abstract
Dendritic cells (DCs) are the most important antigen presenting cells to activate naïve T cells, which results in the case of Type 1 allergies in a Type 2 helper T cell (Th2)-driven specific immune response towards allergens. So far, a number of different subsets of specialized DCs in different organs have been identified. In the recent past methods to study the interaction of DCs with allergenic proteins, their different uptake and processing mechanisms followed by the presentation to T cells were developed. The following review aims to summarize the most important characteristics of DC subsets in the context of allergic diseases, and highlights the recent findings. These detailed studies can contribute to a better understanding of the pathomechanisms of allergic diseases and contribute to the identification of key factors to be addressed for therapeutic interventions.
Collapse
|
18
|
The dangerous liaison between pollens and pollution in respiratory allergy. Ann Allergy Asthma Immunol 2017; 118:269-275. [PMID: 28143681 DOI: 10.1016/j.anai.2016.12.019] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Revised: 12/06/2016] [Accepted: 12/19/2016] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To recapitulate the more recent epidemiologic studies on the association of air pollution with respiratory allergic diseases prevalence and to discuss the main limitations of current approaches used to establish a link between pollinosis and pollution. DATA SOURCES Through the use of PubMed, we conducted a broad literature review in the following areas: epidemiology of respiratory allergic diseases, effect of pollution and climate changes on pollen grains, and immunomodulatory properties of pollen substances. STUDY SELECTIONS Studies on short- and long-term exposure to air pollutants, such as gaseous and particulate materials, on allergic sensitization, and on exacerbation of asthma symptoms were considered. RESULTS Trend in respiratory allergic disease prevalence has increased worldwide during the last 3 decades. Although recent epidemiologic studies on a possible association of this phenomenon with increasing pollution are controversial, botanic studies suggest a clear effect of several pollutants combined to climatic changes on the increased expression of allergenic proteins in several pollen grains. The current literature suggests the need for considering both pollen allergen and pollutant contents for epidemiologic evaluation of environmental determinants in respiratory allergies. We propose that a measure of allergenic potential of pollens, indicative of the increase in allergenicity of a polluted pollen, may be considered as a new risk indicator for respiratory health in urban areas. CONCLUSION Because public greens are located in strict proximity to the anthropogenic sources of pollution, the identification of novel more reliable parameters for risk assessment in respiratory allergic diseases is an essential need for public health management and primary prevention area.
Collapse
|
19
|
Song J, Huang YF, Zhang WJ, Chen XF, Guo YM. Ocular diseases: immunological and molecular mechanisms. Int J Ophthalmol 2016; 9:780-8. [PMID: 27275439 DOI: 10.18240/ijo.2016.05.25] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Accepted: 09/07/2015] [Indexed: 12/14/2022] Open
Abstract
Many factors, such as environmental, microbial and endogenous stress, antigen localization, can trigger the immunological events that affect the ending of the diverse spectrum of ocular disorders. Significant advances in understanding of immunological and molecular mechanisms have been researched to improve the diagnosis and therapy for patients with ocular inflammatory diseases. Some kinds of ocular diseases are inadequately responsive to current medications; therefore, immunotherapy may be a potential choice as an alternative or adjunctive treatment, even in the prophylactic setting. This article first provides an overview of the immunological and molecular mechanisms concerning several typical and common ocular diseases; second, the functions of immunological roles in some of systemic autoimmunity will be discussed; third, we will provide a summary of the mechanisms that dictate immune cell trafficking to ocular local microenvironment in response to inflammation.
Collapse
Affiliation(s)
- Jing Song
- Department of Ophthalmology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300161, China
| | - Yi-Fei Huang
- Department of Ophthalmology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300161, China; Department of Ophthalmology, General Hospital of PLA, Beijing 100853, China
| | - Wen-Jing Zhang
- Department of Ophthalmology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300161, China
| | - Xiao-Fei Chen
- Department of Ophthalmology, General Hospital of PLA, Beijing 100853, China
| | - Yu-Mian Guo
- Department of Ophthalmology, Affiliated Hospital of Logistics University of People's Armed Police Force, Tianjin 300161, China
| |
Collapse
|
20
|
Meshcheryakova A, Svoboda M, Tahir A, Köfeler HC, Triebl A, Mungenast F, Heinze G, Gerner C, Zimmermann P, Jaritz M, Mechtcheriakova D. Exploring the role of sphingolipid machinery during the epithelial to mesenchymal transition program using an integrative approach. Oncotarget 2016; 7:22295-323. [PMID: 26967245 PMCID: PMC5008362 DOI: 10.18632/oncotarget.7947] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 02/20/2016] [Indexed: 12/30/2022] Open
Abstract
The epithelial to mesenchymal transition (EMT) program is activated in epithelial cancer cells and facilitates their ability to metastasize based on enhanced migratory, proliferative, anti-apoptotic, and pluripotent capacities. Given the fundamental impact of sphingolipid machinery to each individual process, the sphingolipid-related mechanisms might be considered among the most prominent drivers/players of EMT; yet, there is still limited knowledge. Given the complexity of the interconnected sphingolipid system, which includes distinct sphingolipid mediators, their synthesizing enzymes, receptors and transporters, we herein apply an integrative approach for assessment of the sphingolipid-associated mechanisms underlying EMT program. We created the sphingolipid-/EMT-relevant 41-gene/23-gene signatures which were applied to denote transcriptional events in a lung cancer cell-based EMT model. Based on defined 35-gene sphingolipid/EMT-attributed signature of regulated genes, we show close associations between EMT markers, genes comprising the sphingolipid network at multiple levels and encoding sphingosine 1-phosphate (S1P)-/ceramide-metabolizing enzymes, S1P and lysophosphatidic acid (LPA) receptors and S1P transporters, pluripotency genes and inflammation-related molecules, and demonstrate the underlying biological pathways and regulators. Mass spectrometry-based sphingolipid analysis revealed an EMT-attributed shift towards increased S1P and LPA accompanied by reduced ceramide levels. Notably, using transcriptomics data across various cell-based perturbations and neoplastic tissues (24193 arrays), we identified the sphingolipid/EMT signature primarily in lung adenocarcinoma tissues; besides, bladder, colorectal and prostate cancers were among the top-ranked. The findings also highlight novel regulatory associations between influenza virus and the sphingolipid/EMT-associated mechanisms. In sum, data propose the multidimensional contribution of sphingolipid machinery to pathological EMT and may yield new biomarkers and therapeutic targets.
Collapse
Affiliation(s)
- Anastasia Meshcheryakova
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Martin Svoboda
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Ammar Tahir
- Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
- Mass Spectrometry Center, University of Vienna, Vienna, Austria
| | - Harald C. Köfeler
- Core Facility for Mass Spectrometry, Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Alexander Triebl
- Core Facility for Mass Spectrometry, Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Felicitas Mungenast
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| | - Georg Heinze
- Section for Clinical Biometrics, Center for Medical Statistics, Informatics, and Intelligent Systems, Medical University Vienna, Vienna, Austria
| | - Christopher Gerner
- Institute of Analytical Chemistry, University of Vienna, Vienna, Austria
- Mass Spectrometry Center, University of Vienna, Vienna, Austria
| | | | - Markus Jaritz
- Research Institute of Molecular Pathology, Vienna Biocenter, Vienna, Austria
| | - Diana Mechtcheriakova
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria
| |
Collapse
|
21
|
Ashjaei K, Palmberger D, Bublin M, Bajna E, Breiteneder H, Grabherr R, Ellinger I, Hoffmann-Sommergruber K. Atopic donor status does not influence the uptake of the major grass pollen allergen, Phl p 5, by dendritic cells. J Immunol Methods 2015; 424:120-30. [PMID: 26055335 PMCID: PMC4739503 DOI: 10.1016/j.jim.2015.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Revised: 05/29/2015] [Accepted: 06/01/2015] [Indexed: 02/02/2023]
Abstract
Dendritic cells (DCs) are sentinels of the immune system for antigen recognition and uptake, as well as presentation to naïve T cells for stimulation or priming. Internalization and endocytic degradation of allergens by DCs are important steps required for T cell priming. In the current study we investigated binding and internalization of purified recombinant non-glycosylated grass pollen allergen, Phl p 5, and natural non-specific lipid transfer protein from sunflower, SF-nsLTP to human monocyte derived dendritic cells (MoDCs). Colocalization of Phl p 5 with low affinity (CD23) or high affinity receptor (FcεRI) was investigated by immunofluorescence staining. Likewise, localization of the allergens in early (EE) and late endosomes (LE) was detected by co-staining for early endosome antigen (EEA1) and lysosomal-associated membrane protein 1 (LAMP1). In our experimental setting we could demonstrate that Phl p 5 as well as SF-nsLTP bound to MoDCs from both, grass pollen allergic and non-allergic individuals. Competitive allergen uptake experiments demonstrated non-preferential and simultaneous uptake of Phl p 5 and SF-nsLTP by MoDCs. No overlap of signals from Phl p 5 and CD23 or FcεRI was detectable, excluding IgE-mediated uptake for this allergen. Both allergens, Phl p 5 and SF-nsLTP, were localized in early and late endosomes. The present study applied a set of methods to assess the allergen uptake by MoDCs in an in vitro model. No qualitative and quantitative differences in the allergen uptake of both, Phl p 5 and SF-nsLTP were detected in single and competitive assays.
Collapse
Affiliation(s)
- Kazem Ashjaei
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | - Dieter Palmberger
- Vienna Institute of Biotechnology - VIBT, University of Natural Resources and Life Sciences, Vienna, Austria.
| | - Merima Bublin
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | - Erika Bajna
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | - Heimo Breiteneder
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | - Reingard Grabherr
- Vienna Institute of Biotechnology - VIBT, University of Natural Resources and Life Sciences, Vienna, Austria.
| | - Isabella Ellinger
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, Vienna, Austria.
| | | |
Collapse
|