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Skinner C, Allavena R, Hoffmann K, Kelly-Bosma M, Kidd S, Thomson C. Disseminated Rasamsonia argillacea complex infection presenting as intraventricular brain hemorrhage in a German shepherd dog in Australia. Med Mycol Case Rep 2024; 44:100641. [PMID: 38516609 PMCID: PMC10955049 DOI: 10.1016/j.mmcr.2024.100641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 03/01/2024] [Indexed: 03/23/2024] Open
Abstract
A German Shepherd Dog diagnosed with Rasamsonia argillacea based on fungal culture and DNA sequencing, is the first documented case in Australia, and the Southern Hemisphere. This species is part of R. argillacea complex, which is an emerging concern in immunocompromised human and veterinary patients. Intraventricular brain hemorrhage, noted on MRI, has not been reported previously in a dog with fungal encephalitis. The patient was euthanized due to progression of clinical signs before a final diagnosis was made, so no treatment was attempted in this case.
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Affiliation(s)
- Christopher Skinner
- Animal Referral Hospital, 532 Seventeen Mile Rocks Road, Sinammon Park QLD 4073, Australia
| | - Rachel Allavena
- School of Veterinary Science, The University of Queensland, Gatton Campus, Gatton QLD 4343, Australia
| | | | - Mirrim Kelly-Bosma
- School of Veterinary Science, The University of Queensland, Gatton Campus, Gatton QLD 4343, Australia
| | - Sarah Kidd
- National Mycology Reference Centre, Microbiology and Infectious Diseases, SA Pathology, Frome Road, Adelaide SA 5000, Australia
| | - Christine Thomson
- Animal Referral Hospital, 532 Seventeen Mile Rocks Road, Sinammon Park QLD 4073, Australia
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2
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Flint HE, Weller JE, Parry-Howells N, Ellerby ZW, McKay SL, King T. Evaluation of indicators of acute emotional states in dogs. Sci Rep 2024; 14:6406. [PMID: 38493262 PMCID: PMC10944520 DOI: 10.1038/s41598-024-56859-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 03/12/2024] [Indexed: 03/18/2024] Open
Abstract
A complete assessment of animal welfare requires not just an understanding of negative emotional states, such as fear and anxiety, but also of positive states, such as calmness and happiness. However, few studies have identified accurate and reliable indicators of positive emotional states in dogs. This study aimed to identify parameters that may serve as indicators of short-term emotional states in dogs. Using a cross-over design, 60 dogs living at a research facility were exposed to six different 10-min scenarios expected to elicit responses varying in emotional valence and arousal. A range of behavioural and physiological parameters were collected and their relationship to anticipated emotional valence and arousal was analysed using linear and logistic mixed models. Cortisol, adrenocorticotropic hormone, heart rate variability, panting, whining, and body shake all demonstrated significant differences based on arousal levels, but only within negative valence scenarios. Scores from a qualitative behavioural assessment (QBA) were associated with both emotional valence and arousal and were considered the best indicator of positive valence. Activity, ear temperature, and sitting were associated with positive high arousal, although this may have been influenced by differing levels of movement induced during these scenarios. Meanwhile, heart rate, secretory immunoglobulin A, standing and lying all showed similar changes associated with arousal for both positive and negative valence scenarios. This study provides a critical first step towards identifying evidence-based indicators of short-term emotional states in dogs, while highlighting considerations that should be made when employing these parameters, including the influence of coder bias, food provision, exercise, and external temperature. Overall, it is recommended future dog emotion and welfare research use a combination of parameters including indicators of both emotional valence and arousal.
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Affiliation(s)
- Hannah E Flint
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK.
| | - Jennifer E Weller
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK
| | - Nia Parry-Howells
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK
| | - Zack W Ellerby
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK
| | - Stephanie L McKay
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK
| | - Tammie King
- Waltham Petcare Science Institute, Waltham on the Wolds, LE14 4RT, UK
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3
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Tate DE, Tanprasertsuk J, Jones RB, Maughan H, Chakrabarti A, Khafipour E, Norton SA, Shmalberg J, Honaker RW. A Randomized Controlled Trial to Evaluate the Impact of a Novel Probiotic and Nutraceutical Supplement on Pruritic Dermatitis and the Gut Microbiota in Privately Owned Dogs. Animals (Basel) 2024; 14:453. [PMID: 38338095 PMCID: PMC10854619 DOI: 10.3390/ani14030453] [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: 12/13/2023] [Revised: 01/23/2024] [Accepted: 01/27/2024] [Indexed: 02/12/2024] Open
Abstract
Pruritic dermatitis (PD) is a common presentation of canine allergic skin diseases, with diversity in severity and treatment response due to complex etiopathogenesis. Evidence suggests the gut microbiota (GM) may contribute to the development of canine allergies. A 10-week double-blind randomized controlled trial evaluated a novel probiotic and nutraceutical blend (PNB) on clinical signs of skin allergy, health measures, and the GM of privately owned self-reported pruritic dogs. A total of 105 dogs were enrolled, with 62 included in pruritus and health analysis and 50 in microbiome analysis. The PNB supported greater improvement of owner-assessed clinical signs of PD at week 2 than the placebo (PBO). More dogs that received the PNB shifted to normal pruritus (digital PVAS10-N: <2) by week 4, compared to week 7 for the PBO. While a placebo effect was identified, clinical differences were supported by changes in the GM. The PNB enriched three probiotic bacteria and reduced abundances of species associated with negative effects. The PBO group demonstrated increased abundances of pathogenic species and reduced abundances of several beneficial species. This trial supports the potential of the PNB as a supplemental intervention in the treatment of PD; however, further investigation is warranted, with stricter diagnostic criteria, disease biomarkers and direct veterinary examination.
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Affiliation(s)
- Devon E. Tate
- NomNomNow Inc., Nashville, TN 37207, USA; (D.E.T.); (J.T.); (R.B.J.)
| | | | - Roshonda B. Jones
- NomNomNow Inc., Nashville, TN 37207, USA; (D.E.T.); (J.T.); (R.B.J.)
| | | | | | - Ehsan Khafipour
- Cargill Inc., Wayzata, MN 55391, USA; (A.C.); (E.K.); (S.A.N.)
| | | | - Justin Shmalberg
- Department of Comparative, Diagnostic, and Population Medicine, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611, USA
| | - Ryan W. Honaker
- NomNomNow Inc., Nashville, TN 37207, USA; (D.E.T.); (J.T.); (R.B.J.)
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4
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Monpierre L, Soetart N, Valsecchi I, Brément T, Brunelat P, Drut A, David M, Roux C, Hubert F, Razafimandimby B, Jouvion G, Miclard J, Chermette R, Botterel F, Guillot J. Penicillium and Talaromyces spp. emerging pathogens in dogs since 1990s. Med Mycol 2023; 61:myad087. [PMID: 37632205 DOI: 10.1093/mmy/myad087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/01/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
Penicillium and Talaromyces spp. are environmental saprophytic molds rarely encountered as infectious agents in humans and animals. This article summarizes the clinical features, treatment, and outcomes of proven infections caused by Penicillium or Talaromyces in four dogs in France. Two dogs had disseminated infections, while the other two had a localized form. All dogs had positive histopathological results showing the presence of hyaline septate hyphae and a positive fungal culture with typical Penicillium conidiophores. Talaromyces georgiensis (n = 1), Penicillium labradorum (n = 2), and Penicillium from section Ramosa series Raistrickiorum (n = 1), were identified based on Internal Transcribed Spacer (ITS) Sanger sequencing. The dogs were initially treated with ketoconazole or itraconazole. Second-line treatment was initiated in three dogs, but after several relapses, the prognosis remained poor. Since the 1990s, 18 cases of Penicillium or Talaromyces infections in dogs have been described worldwide. This series of four reports brings new cases to those already reported in the literature, which are probably underestimated in the world.
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Affiliation(s)
- Lorra Monpierre
- Unité de Mycologie-Parasitologie; Département Prévention, Diagnostic, Traitement des infections, Hôpitaux Universitaires Henri Mondor, Créteil, France
- Dynamyc research team, Université de Paris-Est-Créteil, Créteil, France
| | - Nicolas Soetart
- École nationale vétérinaire, agroalimentaire et de l'alimentation de Nantes-Atlantique, Oniris, Nantes, France
| | - Isabel Valsecchi
- Dynamyc research team, Université de Paris-Est-Créteil, Créteil, France
| | | | - Philippe Brunelat
- Clinique vétérinaire du Val d'Anjou, Saint-Sébastien-sur-Loire, France
| | - Amandine Drut
- École nationale vétérinaire, agroalimentaire et de l'alimentation de Nantes-Atlantique, Oniris, Nantes, France
| | - Manon David
- Clinique vétérinaire Languedocia, Montpellier, France
| | - Cécile Roux
- École nationale vétérinaire, agroalimentaire et de l'alimentation de Nantes-Atlantique, Oniris, Nantes, France
| | - Floriane Hubert
- École nationale vétérinaire, agroalimentaire et de l'alimentation de Nantes-Atlantique, Oniris, Nantes, France
| | | | - Grégory Jouvion
- Dynamyc research team, Université de Paris-Est-Créteil, Créteil, France
- Unité d'Histologie et d'Anatomie Pathologique, Ecole nationale vétérinaire d'Alfort, Maisons-Alfort, France
| | - Julien Miclard
- Laboratoire d'Histopathologie et Cytopathologie Vétérinaire, Nantes, France
| | - René Chermette
- Dynamyc research team, Université de Paris-Est-Créteil, Créteil, France
- Unité d'Histologie et d'Anatomie Pathologique, Ecole nationale vétérinaire d'Alfort, Maisons-Alfort, France
| | - Françoise Botterel
- Unité de Mycologie-Parasitologie; Département Prévention, Diagnostic, Traitement des infections, Hôpitaux Universitaires Henri Mondor, Créteil, France
- Dynamyc research team, Université de Paris-Est-Créteil, Créteil, France
| | - Jacques Guillot
- École nationale vétérinaire, agroalimentaire et de l'alimentation de Nantes-Atlantique, Oniris, Nantes, France
- Université d'Angers, Université de Brest, IRF, SFR ICAT, Angers, France
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5
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Villanueva‐Saz S, Martinez‐Lostao L, Yzuel A, Fernández A, Verde M. Selective IgA deficiency and presumptive polyclonal spike in the beta fraction in a dog with leishmaniosis. VETERINARY RECORD CASE REPORTS 2022. [DOI: 10.1002/vrc2.412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sergio Villanueva‐Saz
- Animal Pathology Department ‐ Clinical Immunology Laboratory, Veterinary Faculty University of Zaragoza Zaragoza Spain
| | | | - Andres Yzuel
- Clinical Immunology Laboratory, Veterinary Faculty University of Zaragoza Zaragoza Spain
| | - Antonio Fernández
- Animal Pathology Department ‐ Clinical Immunology Laboratory, Veterinary Faculty University of Zaragoza Zaragoza Spain
| | - Maite Verde
- Animal Pathology Department ‐ Clinical Immunology Laboratory, Veterinary Faculty University of Zaragoza Zaragoza Spain
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6
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Grützner N, Heilmann RM, Tress U, Peters IR, Suchodolski JS, Steiner JM. Genomic association and further characterisation of faecal immunoglobulin A deficiency in German Shepherd dogs. Vet Med Sci 2021; 7:2144-2155. [PMID: 34390535 PMCID: PMC8604126 DOI: 10.1002/vms3.603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Immunoglobulin A (IgA) deficiency, chronic enteropathies and exocrine pancreatic insufficiency (EPI) have a high prevalence in German Shepherd dogs (GSD). This prospective study determined the prevalence of faecal IgA deficiency (IgAD) in GSD and investigated several candidate genes and the canine genome for a region or locus co-segregating with IgAD in GSD. Faecal IgA concentrations were quantified and genomic DNA was extracted from 8 GSD with an undetectable faecal IgA (classified as IgAD) and 80 non-IgAD GSD. The canine minimal screening set II microsatellite markers were genotyped, with evidence of an association at p < 1.0 × 10-3 . Faecal IgA concentrations were also tested for an association with patient clinical and biochemical variables. RESULTS Allele frequencies observed using the candidate gene approach were not associated with faecal IgAD in GSD. In the genome-wide association study (GWAS), the microsatellite marker FH2361 on canine chromosome 33 approached statistical significance for a link with IgAD in GSD (p = 1.2 × 10-3 ). A subsequent GWAS in 11 GSD with EPI and 80 control GSD revealed a significant association between EPI and FH2361 (p = 8.2 × 10-4 ). CONCLUSIONS The lack of an association with the phenotype of faecal IgAD in GSD using the candidate gene approach and GWAS might suggests that faecal IgAD in GSD is a relative or transient state of deficiency. However, the prevalence of faecal IgAD in GSD appears to be low (<3%). The relationship between faecal IgAD, EPI and loci close to FH2361 on canine chromosome 33 in GSD warrants further investigation.
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Affiliation(s)
- Niels Grützner
- Gastrointestinal LaboratoryDepartment of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexasUSA
- Clinic for Swine and Small RuminantsForensic Medicine and Ambulatory ServiceUniversity of Veterinary Medicine HannoverHannoverGermany
| | - Romy M. Heilmann
- Gastrointestinal LaboratoryDepartment of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexasUSA
- Department for Small AnimalsVeterinary Teaching HospitalCollege of Veterinary MedicineUniversity of LeipzigLeipzigSNGermany
| | - Ursula Tress
- Gastrointestinal LaboratoryDepartment of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexasUSA
- Small Animal Practice PommerhofPlaidtRLPGermany
| | - Iain R. Peters
- Department of Clinical Veterinary ScienceUniversity of BristolLangfordBristolUK
- Veterinary Pathology Group (VPG) ExeterVPG Synlab GroupExeterDevonUK
| | - Jan S. Suchodolski
- Gastrointestinal LaboratoryDepartment of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexasUSA
| | - Jörg M. Steiner
- Gastrointestinal LaboratoryDepartment of Small Animal Clinical SciencesCollege of Veterinary Medicine and Biomedical SciencesTexas A&M UniversityCollege StationTexasUSA
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7
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Martínez-López LM, Perez-Gonzalez A, Washington EA, Woodward AP, Roth-Schulze AJ, Dandrieux JRS, Johnstone T, Prakash N, Jex A, Mansfield C. Hierarchical modelling of immunoglobulin coated bacteria in dogs with chronic enteropathy shows reduction in coating with disease remission but marked inter-individual and treatment-response variability. PLoS One 2021; 16:e0255012. [PMID: 34411114 PMCID: PMC8376084 DOI: 10.1371/journal.pone.0255012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 07/07/2021] [Indexed: 12/02/2022] Open
Abstract
Chronic enteropathies are a common problem in dogs, but many aspects of the pathogenesis remain unknown, making the therapeutic approach challenging in some cases. Environmental factors are intimately related to the development and perpetuation of gastrointestinal disease and the gut microbiome has been identified as a contributing factor. Previous studies have identified dysbiosis and reduced bacterial diversity in the gastrointestinal microbiota of dogs with chronic enteropathies. In this case-controlled study, we use flow cytometry and 16S rRNA sequencing to characterise bacteria highly coated with IgA or IgG in faecal samples from dogs with chronic enteropathy and evaluated their correlation with disease and resolution of the clinical signs. IgA and IgG-coated faecal bacterial counts were significantly higher during active disease compared to healthy dogs and decreased with the resolution of the clinical signs. Characterisation of taxa-specific coating of the intestinal microbiota with IgA and IgG showed marked variation between dogs and disease states, and different patterns of immunoglobulin enrichment were observed in dogs with chronic enteropathy, particularly for Erysipelotrichaceae, Clostridicaceae, Enterobacteriaceae, Prevotellaceae and Bacteroidaceae, families. Although, members of these bacterial groups have been associated with strong immunogenic properties and could potentially constitute important biomarkers of disease, their significance and role need to be further investigated.
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Affiliation(s)
- Lina María Martínez-López
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, Australia
| | - Alexis Perez-Gonzalez
- Melbourne Cytometry Platform, Melbourne Dental School, The University of Melbourne, Carlton, Victoria, Australia
| | | | - Andrew P. Woodward
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Victoria, Australia
| | | | - Julien R. S. Dandrieux
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, Australia
| | - Thurid Johnstone
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, Australia
| | - Nathalee Prakash
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, Australia
| | - Aaron Jex
- Veterinary Biosciences, The University of Melbourne, Parkville, Victoria, Australia
- Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Werribee, Victoria, Australia
| | - Caroline Mansfield
- Department of Veterinary Clinical Sciences, Melbourne Veterinary School, The University of Melbourne, Werribee, Victoria, Australia
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8
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Zhang J, van Oostrom D, Li J, Savelkoul HFJ. Innate Mechanisms in Selective IgA Deficiency. Front Immunol 2021; 12:649112. [PMID: 33981304 PMCID: PMC8107477 DOI: 10.3389/fimmu.2021.649112] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2021] [Accepted: 04/07/2021] [Indexed: 12/12/2022] Open
Abstract
Selective IgA deficiency (SIgAD), characterized by a serum IgA level below 0.07 mg/ml, while displaying normal serum levels of IgM and IgG antibodies, is the most frequently occurring primary immunodeficiency that reveals itself after the first four years after birth. These individuals with SIgAD are for the majority healthy and even when they are identified they are usually not investigated further or followed up. However, recent studies show that newborns and young infants already display clinical manifestations of this condition due to aberrancies in their immune defense. Interestingly, there is a huge heterogeneity in the clinical symptoms of the affected individuals. More than 50% of the affected individuals do not have clinical symptoms, while the individuals that do show clinical symptoms can suffer from mild to severe infections, allergies and autoimmune diseases. However, the reason for this heterogeneity in the manifestation of clinical symptoms of the individuals with SIgAD is unknown. Therefore, this review focusses on the characteristics of innate immune system driving T-cell independent IgA production and providing a mechanism underlying the development of SIgAD. Thereby, we focus on some important genes, including TNFRSF13B (encoding TACI), associated with SIgAD and the involvement of epigenetics, which will cover the methylation degree of TNFRSF13B, and environmental factors, including the gut microbiota, in the development of SIgAD. Currently, no specific treatment for SIgAD exists and novel therapeutic strategies could be developed based on the discussed information.
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Affiliation(s)
- Jingyan Zhang
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences (CAAS), Lanzhou, China
| | - Dèlenn van Oostrom
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
| | - JianXi Li
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences (CAAS), Lanzhou, China
| | - Huub F. J. Savelkoul
- Cell Biology and Immunology Group, Wageningen University & Research, Wageningen, Netherlands
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9
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Bagheri Y, Sanaei R, Yazdani R, Shekarabi M, Falak R, Mohammadi J, Abolhassani H, Aghamohammadi A. The Heterogeneous Pathogenesis of Selective Immunoglobulin A Deficiency. Int Arch Allergy Immunol 2019; 179:231-246. [DOI: 10.1159/000499044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 02/18/2019] [Indexed: 11/19/2022] Open
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10
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Polgár Z, Blackwell EJ, Rooney NJ. Assessing the welfare of kennelled dogs-A review of animal-based measures. Appl Anim Behav Sci 2019; 213:1-13. [PMID: 32287573 PMCID: PMC7126575 DOI: 10.1016/j.applanim.2019.02.013] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Revised: 10/18/2018] [Accepted: 02/13/2019] [Indexed: 12/30/2022]
Abstract
Hundreds of thousands of dogs are housed in kennels worldwide, yet there are no standard protocols for assessing the welfare of dogs in these environments. Animal science is focusing increasingly on the importance of animal-based measures for determining welfare states, and those measures that have been used with kennelled dogs are reviewed in this paper with particular focus on their validity and practicality. From a physiological standpoint, studies using cortisol, heart rate and heart rate variability, temperature changes, and immune function are discussed. Behavioural measures are also of great relevance when addressing canine welfare, thus studies on fear and anxiety behaviours, abnormal behaviours like stereotypies, as well as responses to strangers and novel objects are reviewed. Finally, a limited number of studies attempting to use cognitive bias and learning ability are also mentioned as cognitive measures. The literature to date provides a strong background for which measures may be useful in determining the welfare of kennelled canines, however more research is needed to further assess the value of using these methods, particularly in regard to the large degree of individual differences that exist between dogs.
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Affiliation(s)
- Zita Polgár
- Animal Welfare and Behaviour Group, University of Bristol, Langford, United Kingdom
| | - Emily J Blackwell
- Animal Welfare and Behaviour Group, University of Bristol, Langford, United Kingdom
| | - Nicola J Rooney
- Animal Welfare and Behaviour Group, University of Bristol, Langford, United Kingdom
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11
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Souza CP, Schissler JR, Contreras ET, Dow SW, Hopkins LS, Coy JW, Rosychuk RA, Hawley JR, Lappin MR. Evaluation of immunological parameters in pit bull terrier-type dogs with juvenile onset generalized demodicosis and age-matched healthy pit bull terrier-type dogs. Vet Dermatol 2018; 29:482-e162. [PMID: 30141276 DOI: 10.1111/vde.12681] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Clarissa P. Souza
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Jennifer R. Schissler
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Elena T. Contreras
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Steven W. Dow
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Leone S. Hopkins
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Jonathan W. Coy
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Rod A.W. Rosychuk
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Jennifer R. Hawley
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
| | - Michael R. Lappin
- Department of Clinical Sciences; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; 300 West Drake Road Fort Collins CO 80525 USA
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12
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Serres-Armero A, Povolotskaya IS, Quilez J, Ramirez O, Santpere G, Kuderna LFK, Hernandez-Rodriguez J, Fernandez-Callejo M, Gomez-Sanchez D, Freedman AH, Fan Z, Novembre J, Navarro A, Boyko A, Wayne R, Vilà C, Lorente-Galdos B, Marques-Bonet T. Similar genomic proportions of copy number variation within gray wolves and modern dog breeds inferred from whole genome sequencing. BMC Genomics 2017; 18:977. [PMID: 29258433 PMCID: PMC5735816 DOI: 10.1186/s12864-017-4318-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 11/17/2017] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Whole genome re-sequencing data from dogs and wolves are now commonly used to study how natural and artificial selection have shaped the patterns of genetic diversity. Single nucleotide polymorphisms, microsatellites and variants in mitochondrial DNA have been interrogated for links to specific phenotypes or signals of domestication. However, copy number variation (CNV), despite its increasingly recognized importance as a contributor to phenotypic diversity, has not been extensively explored in canids. RESULTS Here, we develop a new accurate probabilistic framework to create fine-scale genomic maps of segmental duplications (SDs), compare patterns of CNV across groups and investigate their role in the evolution of the domestic dog by using information from 34 canine genomes. Our analyses show that duplicated regions are enriched in genes and hence likely possess functional importance. We identify 86 loci with large CNV differences between dogs and wolves, enriched in genes responsible for sensory perception, immune response, metabolic processes, etc. In striking contrast to the observed loss of nucleotide diversity in domestic dogs following the population bottlenecks that occurred during domestication and breed creation, we find a similar proportion of CNV loci in dogs and wolves, suggesting that other dynamics are acting to particularly select for CNVs with potentially functional impacts. CONCLUSIONS This work is the first comparison of genome wide CNV patterns in domestic and wild canids using whole-genome sequencing data and our findings contribute to study the impact of novel kinds of genetic changes on the evolution of the domestic dog.
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Affiliation(s)
- Aitor Serres-Armero
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain
| | - Inna S Povolotskaya
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain
| | - Javier Quilez
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain.,CNAG-CRG, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Oscar Ramirez
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain.,Vetgenomics, 08193, Barcelona, Spain
| | - Gabriel Santpere
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain.,Department of Neuroscience, Yale School of Medicine, New Haven, CT, USA
| | - Lukas F K Kuderna
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain
| | - Jessica Hernandez-Rodriguez
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain
| | - Marcos Fernandez-Callejo
- CNAG-CRG, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Daniel Gomez-Sanchez
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain
| | - Adam H Freedman
- UCLA, Department of Ecology and Evolutionary Biology, Los Angeles, CA, 90095, USA
| | - Zhenxin Fan
- Key Laboratory of Bioresources and Ecoenvironment (Ministry of Education), College of Life Sciences, Sichuan University, Chengdu, 610064, People's Republic of China
| | - John Novembre
- UCLA, Department of Ecology and Evolutionary Biology, Los Angeles, CA, 90095, USA
| | - Arcadi Navarro
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain.,CNAG-CRG, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain.,Institucio Catalana de Recerca i Estudis Avançats (ICREA), 08010, Barcelona, Catalonia, Spain
| | - Adam Boyko
- Cornell University, Department of Biological Statistics and Computational Biology, New York, NY, 14853, USA
| | - Robert Wayne
- UCLA, Department of Ecology and Evolutionary Biology, Los Angeles, CA, 90095, USA
| | - Carles Vilà
- Estación Biológica de Doñana EBD-CSIC, Department of Integrative Ecology, 41092, Sevilla, Spain
| | - Belen Lorente-Galdos
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain. .,Department of Neuroscience, Yale School of Medicine, New Haven, CT, USA.
| | - Tomas Marques-Bonet
- IBE, Institut de Biologia Evolutiva (Universitat Pompeu Fabra/CSIC), Ciencies Experimentals i de la Salut, 08003, Barcelona, Spain. .,CNAG-CRG, Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology (BIST), Barcelona, Spain. .,Institucio Catalana de Recerca i Estudis Avançats (ICREA), 08010, Barcelona, Catalonia, Spain.
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13
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Vo Ngoc DTL, Krist L, van Overveld FJ, Rijkers GT. The long and winding road to IgA deficiency: causes and consequences. Expert Rev Clin Immunol 2016; 13:371-382. [PMID: 27776452 DOI: 10.1080/1744666x.2017.1248410] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
INTRODUCTION The most common humoral immunodeficiency is IgA deficiency. One of the first papers addressing the cellular and molecular mechanisms underlying IgA deficiency indicated that immature IgA-positive B-lymphocytes are present in these patients. This suggests that the genetic background for IgA is still intact and that class switching can take place. At this moment, it cannot be ruled out that genetic as well as environmental factors are involved. Areas covered: A clinical presentation, the biological functions of IgA, and the management of IgA deficiency are reviewed. In some IgA deficient patients, a relationship with a loss-of-function mutation in the TACI (transmembrane activator and calcium-modulating cyclophilin ligand interaction) gene has been found. Many other genes also have been associated. Gut microbiota are an important environmental trigger for IgA synthesis. Expert commentary: Expression of IgA deficiency is due to both genetic and environmental factors and a role for gut microbiota cannot be excluded.
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Affiliation(s)
- D T Laura Vo Ngoc
- a Department of Science , University College Roosevelt , Middelburg , The Netherlands
| | - Lizette Krist
- a Department of Science , University College Roosevelt , Middelburg , The Netherlands
| | - Frans J van Overveld
- a Department of Science , University College Roosevelt , Middelburg , The Netherlands
| | - Ger T Rijkers
- a Department of Science , University College Roosevelt , Middelburg , The Netherlands
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14
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Vilson Å, Hedhammar Å, Reynolds A, Spears J, Satyaraj E, Pelker R, Rottman C, Björkstén B, Hansson-Hamlin H. Immunoglobulins in dogs: correspondence and maturation in 15 litters of German shepherd dogs and their dams. Vet Rec Open 2016; 3:e000173. [PMID: 27547424 PMCID: PMC4964167 DOI: 10.1136/vetreco-2016-000173] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 06/22/2016] [Accepted: 06/24/2016] [Indexed: 01/11/2023] Open
Abstract
Some dog breeds, including the German shepherd dog (GSD), are predisposed to immune-related disorders. The authors prospectively described development of serum and faecal IgA and serum IgE in GSD from puppies until adulthood and the relationship between mothers and their offspring. Further, the authors tested whether dogs with lower serum IgA also have low faecal IgA and/or serum IgE. To reveal whether any of the parameters could be proven to influence the immune response, the authors also measured serum IgG against canine distemper virus (CDV). To test their hypothesis, the authors used linear mixed models to investigate the relationship of serum IgA, serum IgE and faecal IgA levels in litters and their mothers. Fifteen GSD bitches beginning at 42 days of pregnancy and subsequently all of their offspring (n=83 puppies), reared under well-controlled conditions, were included. All dogs came from the kennel of the Swedish Armed Forces. Serum IgE, serum IgA and faecal IgA levels were lower in seven-week-old puppies than at one year of age. There was no relationship in Ig concentrations between bitches and their puppies at seven weeks of age. Dogs with higher faecal IgA had higher IgG titres against CDV, indicating a favourable systemic immune status.
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Affiliation(s)
- Åsa Vilson
- Department of Clinical Sciences , Swedish University of Agricultural Sciences , Uppsala , Sweden
| | - Åke Hedhammar
- Department of Clinical Sciences , Swedish University of Agricultural Sciences , Uppsala , Sweden
| | | | - Julie Spears
- Nestlé Purina Research , Saint Louis, Missouri , USA
| | | | - Robyn Pelker
- Nestlé Purina Research , Saint Louis, Missouri , USA
| | - Cari Rottman
- Nestlé Purina Research , Saint Louis, Missouri , USA
| | - Bengt Björkstén
- The Institute of Environmental Medicine, Karolinska Institutet , Stockholm , Sweden
| | - Helene Hansson-Hamlin
- Department of Clinical Sciences , Swedish University of Agricultural Sciences , Uppsala , Sweden
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15
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Tengvall K, Kozyrev S, Kierczak M, Bergvall K, Farias FHG, Ardesjö-Lundgren B, Olsson M, Murén E, Hagman R, Leeb T, Pielberg G, Hedhammar Å, Andersson G, Lindblad-Toh K. Multiple regulatory variants located in cell type-specific enhancers within the PKP2 locus form major risk and protective haplotypes for canine atopic dermatitis in German shepherd dogs. BMC Genet 2016; 17:97. [PMID: 27357287 PMCID: PMC4928279 DOI: 10.1186/s12863-016-0404-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 06/20/2016] [Indexed: 12/30/2022] Open
Abstract
Background Canine atopic dermatitis (CAD) is a chronic inflammatory skin disease triggered by allergic reactions involving IgE antibodies directed towards environmental allergens. We previously identified a ~1.5 Mb locus on canine chromosome 27 associated with CAD in German shepherd dogs (GSDs). Fine-mapping indicated association closest to the PKP2 gene encoding plakophilin 2. Results Additional genotyping and association analyses in GSDs combined with control dogs from five breeds with low-risk for CAD revealed the top SNP 27:19,086,778 (p = 1.4 × 10−7) and a rare ~48 kb risk haplotype overlapping the PKP2 gene and shared only with other high-risk CAD breeds. We selected altogether nine SNPs (four top-associated in GSDs and five within the ~48 kb risk haplotype) that spanned ~280 kb forming one risk haplotype carried by 35 % of the GSD cases and 10 % of the GSD controls (OR = 5.1, p = 5.9 × 10−5), and another haplotype present in 85 % of the GSD cases and 98 % of the GSD controls and conferring a protective effect against CAD in GSDs (OR = 0.14, p = 0.0032). Eight of these SNPs were analyzed for transcriptional regulation using reporter assays where all tested regions exerted regulatory effects on transcription in epithelial and/or immune cell lines, and seven SNPs showed allelic differences. The DNA fragment with the top-associated SNP 27:19,086,778 displayed the highest activity in keratinocytes with 11-fold induction of transcription by the risk allele versus 8-fold by the control allele (pdifference = 0.003), and also mapped close (~3 kb) to an ENCODE skin-specific enhancer region. Conclusions Our experiments indicate that multiple CAD-associated genetic variants located in cell type-specific enhancers are involved in gene regulation in different cells and tissues. No single causative variant alone, but rather multiple variants combined in a risk haplotype likely contribute to an altered expression of the PKP2 gene, and possibly nearby genes, in immune and epithelial cells, and predispose GSDs to CAD. Electronic supplementary material The online version of this article (doi:10.1186/s12863-016-0404-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Katarina Tengvall
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.
| | - Sergey Kozyrev
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Marcin Kierczak
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Kerstin Bergvall
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Fabiana H G Farias
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Brita Ardesjö-Lundgren
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Mia Olsson
- Department of Medicine, Rheumatology Unit, Karolinska Institute, Stockholm, Sweden
| | - Eva Murén
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Ragnvi Hagman
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Tosso Leeb
- Institute of Genetics, University of Bern, Bern, Switzerland
| | - Gerli Pielberg
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Åke Hedhammar
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Göran Andersson
- Department of Animal Breeding and Genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Kerstin Lindblad-Toh
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden.,Broad Institute of MIT and Harvard, Cambridge, MA, USA
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16
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Ellis JA, Gow SP, Waldner CL, Shields S, Wappel S, Bowers A, Lacoste S, Xu Z, Ball E. Comparative efficacy of intranasal and oral vaccines against Bordetella bronchiseptica in dogs. Vet J 2016; 212:71-7. [PMID: 27256028 DOI: 10.1016/j.tvjl.2016.04.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/08/2016] [Accepted: 04/09/2016] [Indexed: 11/18/2022]
Abstract
In order to determine the comparative efficacy of vaccines administered intranasally or orally to protect puppies from disease subsequent to experimental infection with Bordetella bronchiseptica (Bb), a randomized controlled trial was performed using 48 approximately 8-week-old specific pathogen free, Bb naive Beagle puppies. Puppies were randomized into three groups and administered vaccines containing Bb intranasally or orally, or a placebo intranasally. Twenty-one days later, all dogs were challenge exposed via aerosol administration of Bb. Clinical signs, nasal bacterial shedding and immune responses were monitored for 28 days after challenge. Intranasally vaccinated puppies had significantly lower rates of coughing, nasal discharge, retching and sneezing (i.e. were less sick clinically) than control puppies. The distinction between the orally vaccinated puppies and the control puppies was less consistent. The orally vaccinated puppies had less coughing and less retching than the control puppies, but nasal discharge and sneezing did not differ from control animals. Orally vaccinated puppies had higher rates of coughing, nasal discharge, retching and sneezing than the intranasally vaccinated puppies. Although both intranasal and oral Bb vaccines stimulated immune responses associated with disease sparing following Bb infection, the intranasal route of delivery conferred superior clinical outcomes. The observed difference in clinical efficacy suggests the need to question the rationale for the use of currently available orally administered Bb vaccines.
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Affiliation(s)
- J A Ellis
- Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5B4.
| | - S P Gow
- Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5B4
| | - C L Waldner
- Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5B4
| | - S Shields
- Zoetis, 100 Campus Drive, Florham Park, New Jersey 07932, USA
| | - S Wappel
- Zoetis, 100 Campus Drive, Florham Park, New Jersey 07932, USA
| | - A Bowers
- Zoetis, 100 Campus Drive, Florham Park, New Jersey 07932, USA
| | - S Lacoste
- Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada S7N 5B4
| | - Z Xu
- Zoetis, 100 Campus Drive, Florham Park, New Jersey 07932, USA
| | - E Ball
- Zoetis, 100 Campus Drive, Florham Park, New Jersey 07932, USA
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17
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Mortlock SA, Booth R, Mazrier H, Khatkar MS, Williamson P. Visualization of Genome Diversity in German Shepherd Dogs. Bioinform Biol Insights 2016; 9:37-42. [PMID: 26884680 PMCID: PMC4750897 DOI: 10.4137/bbi.s30524] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 12/06/2015] [Accepted: 12/11/2015] [Indexed: 12/16/2022] Open
Abstract
A loss of genetic diversity may lead to increased disease risks in subpopulations of dogs. The canine breed structure has contributed to relatively small effective population size in many breeds and can limit the options for selective breeding strategies to maintain diversity. With the completion of the canine genome sequencing project, and the subsequent reduction in the cost of genotyping on a genomic scale, evaluating diversity in dogs has become much more accurate and accessible. This provides a potential tool for advising dog breeders and developing breeding programs within a breed. A challenge in doing this is to present complex relationship data in a form that can be readily utilized. Here, we demonstrate the use of a pipeline, known as NetView, to visualize the network of relationships in a subpopulation of German Shepherd Dogs.
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Affiliation(s)
| | - Rachel Booth
- Faculty of Veterinary Science, The University of Sydney, NSW, Australia
| | - Hamutal Mazrier
- Faculty of Veterinary Science, The University of Sydney, NSW, Australia
| | - Mehar S Khatkar
- Faculty of Veterinary Science, The University of Sydney, NSW, Australia
| | - Peter Williamson
- Faculty of Veterinary Science, The University of Sydney, NSW, Australia
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18
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Cook E, Meler E, Garrett K, Long H, Mak K, Stephens C, Thompson A. Disseminated Chrysosporium infection in a German shepherd dog. Med Mycol Case Rep 2016; 10:29-33. [PMID: 26937338 PMCID: PMC4769606 DOI: 10.1016/j.mmcr.2016.01.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 01/22/2016] [Indexed: 01/08/2023] Open
Abstract
Disseminated Chrysosporium spp. infection was diagnosed in a German shepherd dog based on a positive fungal culture and cytological findings of intralesional fungi associated with granulomatous splenitis and neutrophilic lymphadenitis. The clinical presentation that could mimic a multicentric lymphoma, including markedly enlarged lymph nodes and a very abnormal splenic appearance on ultrasound makes this case even more atypical. The patient showed rapid clinical improvement on oral posaconazole and remains clinically stable ten months after diagnosis.
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19
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Olsson M, Tengvall K, Frankowiack M, Kierczak M, Bergvall K, Axelsson E, Tintle L, Marti E, Roosje P, Leeb T, Hedhammar Å, Hammarström L, Lindblad-Toh K. Genome-Wide Analyses Suggest Mechanisms Involving Early B-Cell Development in Canine IgA Deficiency. PLoS One 2015. [PMID: 26225558 PMCID: PMC4520476 DOI: 10.1371/journal.pone.0133844] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Immunoglobulin A deficiency (IgAD) is the most common primary immune deficiency disorder in both humans and dogs, characterized by recurrent mucosal tract infections and a predisposition for allergic and other immune mediated diseases. In several dog breeds, low IgA levels have been observed at a high frequency and with a clinical resemblance to human IgAD. In this study, we used genome-wide association studies (GWAS) to identify genomic regions associated with low IgA levels in dogs as a comparative model for human IgAD. We used a novel percentile groups-approach to establish breed-specific cut-offs and to perform analyses in a close to continuous manner. GWAS performed in four breeds prone to low IgA levels (German shepherd, Golden retriever, Labrador retriever and Shar-Pei) identified 35 genomic loci suggestively associated (p <0.0005) to IgA levels. In German shepherd, three genomic regions (candidate genes include KIRREL3 and SERPINA9) were genome-wide significantly associated (p <0.0002) with IgA levels. A ~20kb long haplotype on CFA28, significantly associated (p = 0.0005) to IgA levels in Shar-Pei, was positioned within the first intron of the gene SLIT1. Both KIRREL3 and SLIT1 are highly expressed in the central nervous system and in bone marrow and are potentially important during B-cell development. SERPINA9 expression is restricted to B-cells and peaks at the time-point when B-cells proliferate into antibody-producing plasma cells. The suggestively associated regions were enriched for genes in Gene Ontology gene sets involving inflammation and early immune cell development.
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Affiliation(s)
- Mia Olsson
- Department of Laboratory Medicine, Division of Clinical Immunology, Karolinska Institute at Karolinska University Hospital, Huddinge, Sweden
- * E-mail: (KT); (MO); (KLT)
| | - Katarina Tengvall
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- * E-mail: (KT); (MO); (KLT)
| | - Marcel Frankowiack
- Department of Laboratory Medicine, Division of Clinical Immunology, Karolinska Institute at Karolinska University Hospital, Huddinge, Sweden
| | - Marcin Kierczak
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Kerstin Bergvall
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Erik Axelsson
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
| | - Linda Tintle
- Wurtsboro Veterinary Clinic, Wurtsboro, New York, United States of America
| | - Eliane Marti
- Department of Clinical Veterinary Medicine, Division of Clinical Dermatology, Vetsuisse Faculty, University of Bern, Bern, Switzerland
- Dermfocus, Vetsuisse Faculty, University of Bern, Bern Switzerland
| | - Petra Roosje
- Dermfocus, Vetsuisse Faculty, University of Bern, Bern Switzerland
- Department of Clinical Research and Veterinary Public Health, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Tosso Leeb
- Dermfocus, Vetsuisse Faculty, University of Bern, Bern Switzerland
- Institute of Genetics, Vetsuisse Faculty, University of Bern, Bern, Switzerland
| | - Åke Hedhammar
- Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Lennart Hammarström
- Department of Laboratory Medicine, Division of Clinical Immunology, Karolinska Institute at Karolinska University Hospital, Huddinge, Sweden
| | - Kerstin Lindblad-Toh
- Science for Life Laboratory, Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- Broad Institute of MIT and Harvard, Cambridge, Massachusetts, United States of America
- * E-mail: (KT); (MO); (KLT)
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20
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Frankowiack M, Olsson M, Cluff HD, Evans AL, Hellman L, Månsson J, Arnemo JM, Hammarström L. IgA deficiency in wolves from Canada and Scandinavia. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2015; 50:26-28. [PMID: 25530092 DOI: 10.1016/j.dci.2014.12.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/10/2014] [Accepted: 12/11/2014] [Indexed: 06/04/2023]
Abstract
Immunoglobulin A deficiency (IgAD) is the most common primary immunodeficiency in both humans and selected breeds of domestic dogs. In both species, IgAD is associated with recurrent infections and immune mediated diseases. Previous results imply that IgAD is also common in the wild ancestor of domestic dogs, the gray wolf. Here, we report that serum IgA concentrations are significantly different in Scandinavian and Canadian wolves (p = 3.252e-15) with an increased prevalence for IgAD in Scandinavian wolves (60%), which is as high as those found in high-risk dog breeds.
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Affiliation(s)
- Marcel Frankowiack
- Division of Clinical Immunology (F79), Department of Laboratory Medicine, Karolinska Institute at Karolinska University Hospital, SE-14186 Huddinge, Sweden
| | - Mia Olsson
- Division of Clinical Immunology (F79), Department of Laboratory Medicine, Karolinska Institute at Karolinska University Hospital, SE-14186 Huddinge, Sweden
| | - H Dean Cluff
- Department of Environment and Natural Resources, Government of the Northwest Territories, Yellowknife, Northwest Territories, Canada
| | - Alina L Evans
- Department of Forestry and Wildlife Management, Faculty of Applied Ecology and Agricultural Sciences, Hedmark University College, Campus Evenstad, NO-2418 Elverum, Norway
| | - Lars Hellman
- Department of Cell and Molecular Biology, Uppsala University, SE-75124 Uppsala, Sweden
| | - Johan Månsson
- Department of Ecology, Faculty of Natural Resources and Agricultural Sciences, Swedish University of Agricultural Sciences, SE-730 91 Grimsö, Riddarhyttan, Sweden
| | - Jon M Arnemo
- Department of Forestry and Wildlife Management, Faculty of Applied Ecology and Agricultural Sciences, Hedmark University College, Campus Evenstad, NO-2418 Elverum, Norway; Department of Wildlife, Fish and Environmental Studies, Faculty of Forest Sciences, Swedish University of Agricultural Sciences, SE-901 83 Umeå, Sweden
| | - Lennart Hammarström
- Division of Clinical Immunology (F79), Department of Laboratory Medicine, Karolinska Institute at Karolinska University Hospital, SE-14186 Huddinge, Sweden.
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21
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Lee A, Kathrani A, Priestnall S, Smith K, Werling D, Allenspach K. Lack of Correlation between Mucosal Immunoglobulin A-positive Plasma Cell Numbers and TLR5 Genotypes in German Shepherd Dogs with Idiopathic Chronic Enteropathy. J Comp Pathol 2015; 152:201-5. [DOI: 10.1016/j.jcpa.2015.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 12/24/2014] [Accepted: 01/06/2015] [Indexed: 10/23/2022]
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