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Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma

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Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma. / Hansen, Sanni; Otten, Nina D.; Birch, Karin; Skovgaard, Kerstin; Hopster-Iversen, Charlotte; Fjeldborg, Julie.

I: Veterinary Immunology and Immunopathology, Bind 220, 109976, 2020.

Publikation: Bidrag til tidsskriftTidsskriftartikel

Harvard

Hansen, S, Otten, ND, Birch, K, Skovgaard, K, Hopster-Iversen, C & Fjeldborg, J 2020, 'Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma', Veterinary Immunology and Immunopathology, bind 220, 109976. https://doi.org/10.1016/j.vetimm.2019.109976

APA

Hansen, S., Otten, N. D., Birch, K., Skovgaard, K., Hopster-Iversen, C., & Fjeldborg, J. (2020). Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma. Veterinary Immunology and Immunopathology, 220, [109976]. https://doi.org/10.1016/j.vetimm.2019.109976

Vancouver

Hansen S, Otten ND, Birch K, Skovgaard K, Hopster-Iversen C, Fjeldborg J. Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma. Veterinary Immunology and Immunopathology. 2020;220. 109976. https://doi.org/10.1016/j.vetimm.2019.109976

Author

Hansen, Sanni ; Otten, Nina D. ; Birch, Karin ; Skovgaard, Kerstin ; Hopster-Iversen, Charlotte ; Fjeldborg, Julie. / Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma. I: Veterinary Immunology and Immunopathology. 2020 ; Bind 220.

Bibtex

@article{91d19e2f8b3d4369bbf5db8358b92a38,
title = "Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma",
abstract = "The pathophysiology of equine asthma (EA) is still not fully described, but the involvement of an allergic reaction is strongly suspected. This theory has led to the use of allergen-specific immunoglobulin (Ig)E tests to support a diagnosis of asthma. The objective of this descriptive study was to evaluate the correlation between four subgroups of EA (mastocytic mild equine asthma [MEA], neutrophilic MEA, mixed MEA, and severe equine asthma [SEA]), allergen specific IgE (measured in both serum and BALF) and mRNA expression of selected genes in bronchoalveolar lavage fluid (BALF). Serum and BALF were collected from 64 horses with a history of lower airway problems with or without poor performance. Differential cell counts from BALF were used to assign horses to one of four groups (mastocytic MEA; neutrophilic MEA, mixed MEA, and SEA). The expression of messenger RNA (mRNA) coding for IL4, IL5, IL8, IL10, TGFB, TNFA, toll-like receptor (TLR)4, IL1RA, IL1B, matrix metalloproteinase 8 (MMP8), TLR9, chemokine ligand 5 (CCL5) and cluster of differentiation (CD)14 in BALF were measured using reverse transcriptase (RT) quantitative PCR (qPCR). Allergen-specific IgE was measured in serum and BALF using an allergen-specific IgE ELISA test with the screening panel: house mites, storage mites, mould and pollen. As expected, the BALF neutrophil differential count correlated with mRNA expression of MMP-8 (r = 0.611, p < 0.001), TLR-4 (r = 0.540, p < 0.001), IL-1RA (r = 0.490, p < 0.001), IL-1β (r = 0.463, p < 0.001) and IL-8 (r = 0.302, p = 0.015). Cytokine expression of IL-1β (p = 0.014), MMP8 (p = 0.028) and IL-1RA (p = 0.037) was significantly higher in the SEA group compared to the MEA subgroups. The BALF mast cell count was correlated with allergen-specific IgE for insects (r = 0.370, p = 0.002) and pollen (r = 0.313, p = 0.011). Eosinophils in BALF were correlated with BALF mRNA expression of IL-4 (r = 0.340, p = 0.006) together with a significant correlation between BALF eosinophils and allergen-specific IgE for mites (r = 0.930, p < 0.001) and pollen in BALF (r = 0.837, p < 0.001). No correlation was found between allergen-specific IgE in serum and BALF for any of the allergen in the screening panel. Based on these results from allergen-specific IgE in horses with EA is not found in systemic circulation, and only the mastocytic and mixed subgroups of horses with EA had allergen-specific IgE in BALF. Further studies are needed to clarify the relationships identified here.",
keywords = "Allergy, Insects, Mastocytic equine asthma, Mites, Pollen",
author = "Sanni Hansen and Otten, {Nina D.} and Karin Birch and Kerstin Skovgaard and Charlotte Hopster-Iversen and Julie Fjeldborg",
year = "2020",
doi = "10.1016/j.vetimm.2019.109976",
language = "English",
volume = "220",
journal = "Veterinary Immunology and Immunopathology",
issn = "0165-2427",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Bronchoalveolar lavage fluid cytokine, cytology and IgE allergen in horses with equine asthma

AU - Hansen, Sanni

AU - Otten, Nina D.

AU - Birch, Karin

AU - Skovgaard, Kerstin

AU - Hopster-Iversen, Charlotte

AU - Fjeldborg, Julie

PY - 2020

Y1 - 2020

N2 - The pathophysiology of equine asthma (EA) is still not fully described, but the involvement of an allergic reaction is strongly suspected. This theory has led to the use of allergen-specific immunoglobulin (Ig)E tests to support a diagnosis of asthma. The objective of this descriptive study was to evaluate the correlation between four subgroups of EA (mastocytic mild equine asthma [MEA], neutrophilic MEA, mixed MEA, and severe equine asthma [SEA]), allergen specific IgE (measured in both serum and BALF) and mRNA expression of selected genes in bronchoalveolar lavage fluid (BALF). Serum and BALF were collected from 64 horses with a history of lower airway problems with or without poor performance. Differential cell counts from BALF were used to assign horses to one of four groups (mastocytic MEA; neutrophilic MEA, mixed MEA, and SEA). The expression of messenger RNA (mRNA) coding for IL4, IL5, IL8, IL10, TGFB, TNFA, toll-like receptor (TLR)4, IL1RA, IL1B, matrix metalloproteinase 8 (MMP8), TLR9, chemokine ligand 5 (CCL5) and cluster of differentiation (CD)14 in BALF were measured using reverse transcriptase (RT) quantitative PCR (qPCR). Allergen-specific IgE was measured in serum and BALF using an allergen-specific IgE ELISA test with the screening panel: house mites, storage mites, mould and pollen. As expected, the BALF neutrophil differential count correlated with mRNA expression of MMP-8 (r = 0.611, p < 0.001), TLR-4 (r = 0.540, p < 0.001), IL-1RA (r = 0.490, p < 0.001), IL-1β (r = 0.463, p < 0.001) and IL-8 (r = 0.302, p = 0.015). Cytokine expression of IL-1β (p = 0.014), MMP8 (p = 0.028) and IL-1RA (p = 0.037) was significantly higher in the SEA group compared to the MEA subgroups. The BALF mast cell count was correlated with allergen-specific IgE for insects (r = 0.370, p = 0.002) and pollen (r = 0.313, p = 0.011). Eosinophils in BALF were correlated with BALF mRNA expression of IL-4 (r = 0.340, p = 0.006) together with a significant correlation between BALF eosinophils and allergen-specific IgE for mites (r = 0.930, p < 0.001) and pollen in BALF (r = 0.837, p < 0.001). No correlation was found between allergen-specific IgE in serum and BALF for any of the allergen in the screening panel. Based on these results from allergen-specific IgE in horses with EA is not found in systemic circulation, and only the mastocytic and mixed subgroups of horses with EA had allergen-specific IgE in BALF. Further studies are needed to clarify the relationships identified here.

AB - The pathophysiology of equine asthma (EA) is still not fully described, but the involvement of an allergic reaction is strongly suspected. This theory has led to the use of allergen-specific immunoglobulin (Ig)E tests to support a diagnosis of asthma. The objective of this descriptive study was to evaluate the correlation between four subgroups of EA (mastocytic mild equine asthma [MEA], neutrophilic MEA, mixed MEA, and severe equine asthma [SEA]), allergen specific IgE (measured in both serum and BALF) and mRNA expression of selected genes in bronchoalveolar lavage fluid (BALF). Serum and BALF were collected from 64 horses with a history of lower airway problems with or without poor performance. Differential cell counts from BALF were used to assign horses to one of four groups (mastocytic MEA; neutrophilic MEA, mixed MEA, and SEA). The expression of messenger RNA (mRNA) coding for IL4, IL5, IL8, IL10, TGFB, TNFA, toll-like receptor (TLR)4, IL1RA, IL1B, matrix metalloproteinase 8 (MMP8), TLR9, chemokine ligand 5 (CCL5) and cluster of differentiation (CD)14 in BALF were measured using reverse transcriptase (RT) quantitative PCR (qPCR). Allergen-specific IgE was measured in serum and BALF using an allergen-specific IgE ELISA test with the screening panel: house mites, storage mites, mould and pollen. As expected, the BALF neutrophil differential count correlated with mRNA expression of MMP-8 (r = 0.611, p < 0.001), TLR-4 (r = 0.540, p < 0.001), IL-1RA (r = 0.490, p < 0.001), IL-1β (r = 0.463, p < 0.001) and IL-8 (r = 0.302, p = 0.015). Cytokine expression of IL-1β (p = 0.014), MMP8 (p = 0.028) and IL-1RA (p = 0.037) was significantly higher in the SEA group compared to the MEA subgroups. The BALF mast cell count was correlated with allergen-specific IgE for insects (r = 0.370, p = 0.002) and pollen (r = 0.313, p = 0.011). Eosinophils in BALF were correlated with BALF mRNA expression of IL-4 (r = 0.340, p = 0.006) together with a significant correlation between BALF eosinophils and allergen-specific IgE for mites (r = 0.930, p < 0.001) and pollen in BALF (r = 0.837, p < 0.001). No correlation was found between allergen-specific IgE in serum and BALF for any of the allergen in the screening panel. Based on these results from allergen-specific IgE in horses with EA is not found in systemic circulation, and only the mastocytic and mixed subgroups of horses with EA had allergen-specific IgE in BALF. Further studies are needed to clarify the relationships identified here.

KW - Allergy

KW - Insects

KW - Mastocytic equine asthma

KW - Mites

KW - Pollen

U2 - 10.1016/j.vetimm.2019.109976

DO - 10.1016/j.vetimm.2019.109976

M3 - Journal article

C2 - 31786444

AN - SCOPUS:85075530614

VL - 220

JO - Veterinary Immunology and Immunopathology

JF - Veterinary Immunology and Immunopathology

SN - 0165-2427

M1 - 109976

ER -

ID: 231414141