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Wang X, Ilarraza R, Tancowny BP, Alam SB, Kulka M. Disrupted Lipid Raft Shuttling of FcεRI by n-3 Polyunsaturated Fatty Acid Is Associated With Ligation of G Protein-Coupled Receptor 120 (GPR120) in Human Mast Cell Line LAD2. Front Nutr 2020; 7:597809. [PMID: 33330598 PMCID: PMC7732685 DOI: 10.3389/fnut.2020.597809] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2020] [Accepted: 10/20/2020] [Indexed: 12/26/2022] Open
Abstract
n-3 polyunsaturated fatty acids (PUFA) influences a variety of disease conditions, such as hypertension, heart disease, diabetes, cancer and allergic diseases, by modulating membrane constitution, inhibiting production of proinflammatory eicosanoids and cytokines, and binding to cell surface and nuclear receptors. We have previously shown that n-3 PUFA inhibit mast cell functions by disrupting high affinity IgE receptor (FcεRI) lipid raft partitioning and subsequent suppression of FcεRI signaling in mouse bone marrow-derived mast cells. However, it is still largely unknown how n-3 PUFA modulate human mast cell function, which could be attributed to multiple mechanisms. Using a human mast cell line (LAD2), we have shown similar modulating effects of n-3 PUFA on FcεRI lipid raft shuttling, FcεRI signaling, and mediator release after cell activation through FcεRI. We have further shown that these effects are at least partially associated with ligation of G protein-coupled receptor 120 expressed on LAD2 cells. This observation has advanced our mechanistic knowledge of n-3 PUFA's effect on mast cells and demonstrated the interplay between n-3 PUFA, lipid rafts, FcεRI, and G protein-coupled receptor 120. Future research in this direction may present new targets for nutritional intervention and therapeutic agents.
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Affiliation(s)
- Xiaofeng Wang
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
| | - Ramses Ilarraza
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada
| | - Brian P Tancowny
- Department of Biochemistry, Prion Research Institute, University of Alberta, Edmonton, AB, Canada
| | - Syed Benazir Alam
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada.,National Research Council Canada, Nanotechnology Research Centre, Edmonton, AB, Canada
| | - Marianna Kulka
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, AB, Canada.,National Research Council Canada, Nanotechnology Research Centre, Edmonton, AB, Canada
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Esmaili M, Tancowny BP, Wang X, Moses A, Cortez LM, Sim VL, Wille H, Overduin M. Native nanodiscs formed by styrene maleic acid copolymer derivatives help recover infectious prion multimers bound to brain-derived lipids. J Biol Chem 2020; 295:8460-8469. [PMID: 32358064 DOI: 10.1074/jbc.ra119.012348] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 04/14/2020] [Indexed: 11/06/2022] Open
Abstract
Prions are lipidated proteins that interact with endogenous lipids and metal ions. They also assemble into multimers and propagate into the infectious scrapie form known as PrPSc The high-resolution structure of the infectious PrPSc state remains unknown, and its analysis largely relies on detergent-based preparations devoid of endogenous ligands. Here we designed polymers that allow isolation of endogenous membrane:protein assemblies in native nanodiscs without exposure to conventional detergents that destabilize protein structures and induce fibrillization. A set of styrene-maleic acid (SMA) polymers including a methylamine derivative facilitated gentle release of the infectious complexes for resolution of multimers, and a thiol-containing version promoted crystallization. Polymer extraction from brain homogenates from Syrian hamsters infected with Hyper prions and WT mice infected with Rocky Mountain Laboratories prions yielded infectious prion nanoparticles including oligomers and microfilaments bound to lipid vesicles. Lipid analysis revealed the brain phospholipids that associate with prion protofilaments, as well as those that are specifically enriched in prion assemblies captured by the methylamine-modified copolymer. A comparison of the infectivity of PrPSc attached to SMA lipid particles in mice and hamsters indicated that these amphipathic polymers offer a valuable tool for high-yield production of intact, detergent-free prions that retain in vivo activity. This native prion isolation method provides an avenue for producing relevant prion:lipid targets and potentially other proteins that form multimeric assemblies and fibrils on membranes.
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Affiliation(s)
- Mansoore Esmaili
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
| | - Brian P Tancowny
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Xiongyao Wang
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada.,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Audric Moses
- Lipidomics Core Facility, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada
| | - Leonardo M Cortez
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada.,Division of Neurology, Department of Medicine, Centre for Prions and Protein Folding Diseases, and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Valerie L Sim
- Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada.,Division of Neurology, Department of Medicine, Centre for Prions and Protein Folding Diseases, and Neuroscience and Mental Health Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Holger Wille
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada .,Centre for Prions and Protein Folding Diseases, University of Alberta, Edmonton, Alberta, Canada
| | - Michael Overduin
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, Canada
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Kim DW, Kulka M, Jo A, Eun KM, Arizmendi N, Tancowny BP, Hong SN, Lee JP, Jin HR, Lockey RF, Kim DK, Cho SH. Cross-talk between human mast cells and epithelial cells by IgE-mediated periostin production in eosinophilic nasal polyps. J Allergy Clin Immunol 2016; 139:1692-1695.e6. [PMID: 27771323 DOI: 10.1016/j.jaci.2016.09.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Revised: 08/25/2016] [Accepted: 09/06/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Dae Woo Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea; Division of Allergy-Immunology, Department of Internal Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla
| | - Marianna Kulka
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada; National Institute for Nanotechnology, National Research Council Canada, Edmonton, Alberta, Canada
| | - Ara Jo
- Division of Allergy-Immunology, Department of Internal Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla
| | - Kyoung Mi Eun
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Narcy Arizmendi
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada; National Institute for Nanotechnology, National Research Council Canada, Edmonton, Alberta, Canada
| | - Brian P Tancowny
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Alberta, Canada; National Institute for Nanotechnology, National Research Council Canada, Edmonton, Alberta, Canada
| | - Seung-No Hong
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Jung Pyo Lee
- Department of Internal Medicine, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Hong Ryul Jin
- Department of Otorhinolaryngology-Head and Neck Surgery, Boramae Medical Center, Seoul National University College of Medicine, Seoul, Korea
| | - Richard F Lockey
- Division of Allergy-Immunology, Department of Internal Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla
| | - Dong-Kyu Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Chuncheon Sacred Heart Hospital and Nano-Bio Regenerative Medical Institute, Hallym University College of Medicine, Chuncheon, Korea.
| | - Seong H Cho
- Division of Allergy-Immunology, Department of Internal Medicine, University of South Florida Morsani College of Medicine, Tampa, Fla.
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Kim DW, Kulka M, Jo AR, Eun KM, Arizmendi N, Tancowny BP, Hong SN, Jin HR, Kim DK, Lockey RF, Cho SH. Cross-Talk Between Human Mast Cells and Epithelial Cells By IgE-Mediated Periostin Production in Eosinophilic Nasal Polyps. J Allergy Clin Immunol 2016. [DOI: 10.1016/j.jaci.2015.12.741] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Tancowny BP, Karpov V, Schleimer RP, Kulka M. Substance P primes lipoteichoic acid- and Pam3CysSerLys4-mediated activation of human mast cells by up-regulating Toll-like receptor 2. Immunology 2011; 131:220-30. [PMID: 20497485 DOI: 10.1111/j.1365-2567.2010.03296.x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Substance P (SP) is a neuropeptide with neuroimmunoregulatory activity that may play a role in susceptibility to infection. Human mast cells, which are important in innate immune responses, were analysed for their responses to pathogen-associated molecules via Toll-like receptors (TLRs) in the presence of SP. Human cultured mast cells (LAD2) were activated by SP and TLR ligands including lipopolysaccharide (LPS), Pam3CysSerLys4 (Pam3CSK4) and lipoteichoic acid (LTA), and mast cell leukotriene and chemokine production was assessed by enzyme-linked immunosorbent assay (ELISA) and gene expression by quantitative PCR (qPCR). Mast cell degranulation was determined using a β-hexosaminidase (β-hex) assay. SP treatment of LAD2 up-regulated mRNA for TLR2, TLR4, TLR8 and TLR9 while anti-immunoglobulin E (IgE) stimulation up-regulated expression of TLR4 only. Flow cytometry and western blot confirmed up-regulation of TLR2 and TLR8. Pretreatment of LAD2 with SP followed by stimulation with Pam3CSK4 or LTA increased production of leukotriene C4 (LTC(4) ) and interleukin (IL)-8 compared with treatment with Pam3CSK4 or LTA alone (>2-fold; P<0·01). SP alone activated 5-lipoxygenase (5-LO) nuclear translocation but also augmented Pam3CSK4 and LTA-mediated 5-LO translocation. Pam3CSK4, LPS and LTA did not induce LAD2 degranulation. SP primed LTA and Pam3CSK4-mediated activation of JNK, p38 and extracellular-signal-regulated kinase (ERK) and activated the nuclear translocation of c-Jun, nuclear factor (NF)-κB, activating transcription factor 2 (ATF-2) and cyclic-AMP-responsive element binding protein (CREB) transcription factors. Pretreatment with SP followed by LTA stimulation synergistically induced production of chemokine (C-X-C motif) ligand 8 (CXCL8)/IL-8, chemokine (C-C motif) ligand 2 (CCL2)/monocyte chemotactic protein 1 (MCP-1), tumour necrosis factor (TNF) and IL-6 protein. SP primes TLR2-mediated activation of human mast cells by up-regulating TLR expression and potentiating signalling pathways associated with TLR. These results suggest that neuronal responses may influence innate host defence responses.
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Affiliation(s)
- Brian P Tancowny
- Allergy/Immunology Division, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
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Kulka M, Sheen C, Tancowny BP, Schleimer RP. Adenosine receptor A2a inhibits complement-mediated activation of human mast cells by activating Gαs-proteins (139.5). The Journal of Immunology 2009. [DOI: 10.4049/jimmunol.182.supp.139.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The complement anaphylatoxin 3a (C3a) and adenosine receptors (AR) are implicated in the inflammatory process in allergic rhinitis although a direct interaction between these pathways has not been demonstrated. To investigate the interaction between these pathways, primary human cultured mast cells (HuMC) and human mast cell line (LAD2) were stimulated with C3a with or without AR agonists and antagonists. The non-selective AR agonist, 5'-N-ethylcarboxamidoadenosine (NECA; 30 uM), inhibited C3a-mediated HuMC and LAD cell degranulation (43 + 4 and 40 + 5 % inhibition respectively compared to control). NECA also blocked C3a-activated production of MCP-1 (57 + 6 %) and C3a-activated chemotaxis (46.7 + 10 %). A selective A2aR agonist, CGS 21680, inhibited C3a-mediated degranulation but the A3R agonist, IB-MECA, had no effect suggesting that inhibition of degranulation was mediated by A2aR. An A2aR antagonist, SCH 58261, blocked the inhibitory effect of NECA but an A2bR and A3R antagonist had no effect. Real-time PCR analysis showed that LAD2 and HuMC expressed mRNA for A2aR, A2bR and A3R but not A1R. Measurements of intracellular cAMP showed that NECA elevated [cAMP]i levels by at least 30% even in C3a-activated cells. Pertussis toxin blocked C3a-activated degranulation. The adenylyl cyclase inhibitor, SQ 22536, had no effect on C3a-activated degranulation but blocked the effect of NECA demonstrating that C3a and NECA mediate their effects through Gαi and Gαs proteins respectively. These results show that adenosine inhibits complement activation of human mast cells through a Gαs-protein pathway.
Funded by a grant from the Ernest S. Bazely Trust and intramural NRC funds
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Affiliation(s)
- Marianna Kulka
- 1Institute for Nutrisciences and Health, National Research Council, Charlottetown, PE Canada
| | - Cecilia Sheen
- 2Allergy-Immunology Division, Northwestern University, Chicago, Illinois
| | - Brian P Tancowny
- 2Allergy-Immunology Division, Northwestern University, Chicago, Illinois
| | - Robert P Schleimer
- 2Allergy-Immunology Division, Northwestern University, Chicago, Illinois
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Kulka M, Sheen CH, Tancowny BP, Grammer LC, Schleimer RP. Neuropeptides activate human mast cell degranulation and chemokine production. Immunology 2007; 123:398-410. [PMID: 17922833 DOI: 10.1111/j.1365-2567.2007.02705.x] [Citation(s) in RCA: 306] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
During neuronal-induced inflammation, mast cells may respond to stimuli such as neuropeptides in an FcepsilonRI-independent manner. In this study, we characterized human mast cell responses to substance P (SP), nerve growth factor (NGF), calcitonin gene-related peptide (CGRP) and vasoactive intestinal polypeptide (VIP) and compared these responses to human mast cell responses to immunoglobulin E (IgE)/anti-IgE and compound 48/80. Primary cultured mast cells, generated from CD34(+) progenitors in the presence of stem cell factor and interleukin-6 (IL-6), and human cultured mast cells (LAD2) were stimulated with these and other stimuli (gastrin, concanavalin A, radiocontrast media, and mannitol) and their degranulation and chemokine production was assessed. VIP and SP stimulated primary human mast cells and LAD cells to degranulate; gastrin, concanavalin A, radiocontrast media, mannitol, CGRP and NGF did not activate degranulation. While anti-IgE stimulation did not induce significant production of chemokines, stimulation with VIP, SP or compound 48/80 potently induced production of monocyte chemoattractant protein-1, inducible protein-10, monokine induced by interferon-gamma (MIG), RANTES (regulated on activation, normal, T-cell expressed, and secreted) and IL-8. VIP, SP and compound 48/80 also activated release of tumour necrosis factor, IL-3 and granulocyte-macrophage colony-stimulating factor, but not IL-4, interferon-gamma or eotaxin. Human mast cells expressed surface neurokinin 1 receptor (NK1R), NK2R, NK3R and VIP receptor type 2 (VPAC2) but not VPAC1 and activation of human mast cells by IgE/anti-IgE up-regulated expression of VPAC2, NK2R, and NK3R. These studies demonstrate the pattern of receptor expression and activation of mast cell by a host of G-protein coupled receptor ligands and suggest that SP and VIP activate a unique signalling pathway in human mast cells. These results are likely to have direct relevance to neuronally induced inflammatory diseases.
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Affiliation(s)
- Marianna Kulka
- National Research Council Canada, Room 432, 550 University Avenue, Charlottetown, PE, Canada.
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Tanay VA, Tancowny BP, Glencorse TA, Bateson AN. The quantitative analysis of multiple mRNA species using oligonucleotide probes in an S1 nuclease protection assay. Mol Biotechnol 1997; 7:217-29. [PMID: 9219236 DOI: 10.1007/bf02740813] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The quantitative measurement of steady-state mRNA levels is fundamental to the analysis of gene expression. A variety of techniques are widely used to achieve this including Northern blotting, RNase protection, and S1 nuclease protection. We describe here in detail a relatively recent extension of the S1 nuclease protection technique (1) in which radiolabeled oligonucleotides are used as probes in a solution hybridization assay (2). The principle advantage of this technique is that it allows, in a single RNA sample, the simultaneous measurement of the relative levels of at least six mRNA species, including that of a control mRNA. Further, a large number of RNA samples can be analyzed at one time.
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Affiliation(s)
- V A Tanay
- Department of Pharmacology, Faculty of Medicine, University of Alberta, Edmonton, Canada
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