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Tham HL, Davis JL. Pharmacology of drugs used in autoimmune dermatopathies in cats and dogs: A narrative review. Vet Dermatol 2024; 35:453-476. [PMID: 38708551 DOI: 10.1111/vde.13253] [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: 08/16/2023] [Revised: 02/15/2024] [Accepted: 04/12/2024] [Indexed: 05/07/2024]
Abstract
Immunosuppressive drugs are the mainstay of treatment for many feline and canine autoimmune skin diseases, either as monotherapy or in combination with other drugs. Treatment with these drugs is often lifelong and may have long-term consequences on the affected animal's overall quality-of-life. Clinicians need to understand the pharmacology of immunosuppressants in planning and executing the treatment regimen for the best possible clinical outcome, as well as reducing the risk of adverse effects. This review paper will focus on the mechanism of action, pharmacokinetics and pharmacodynamics, clinical uses and adverse effects of immunosuppressive drugs used to treat autoimmune dermatoses in cats and dogs. These include glucocorticoids, ciclosporin A, azathioprine, chlorambucil, mycophenolate mofetil, oclacitinib and Bruton's tyrosine kinase inhibitors.
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Affiliation(s)
- Heng L Tham
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, USA
| | - Jennifer L Davis
- Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, USA
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2
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Strichea AH, Hreniuc ȘL, Solcan G. Non-Invasive Paraclinical Diagnosis of Hepatocutaneous Syndrome in a Dog. Life (Basel) 2024; 14:853. [PMID: 39063607 PMCID: PMC11277621 DOI: 10.3390/life14070853] [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: 06/10/2024] [Revised: 06/30/2024] [Accepted: 07/05/2024] [Indexed: 07/28/2024] Open
Abstract
A 14-year-old, female spayed Bichon Maltese with no other known previous pathologies was presented for dermatological examination after being referred from a private clinic with the suspicion of generalized, treatment-resistant demodicosis. Upon presentation and clinical examination, multiple deep skin scrapings were performed, returning negative parasitological results. Complete blood count and serum biochemistry revealed mild hepatic damage. Abdominal ultrasound revealed an abnormal echostructure of the liver displaying a honeycomb or Swiss cheese-like pattern, reported as pathognomonic for hepatocutaneous syndrome. The owner declined any further paraclinical examination, including skin biopsy and histopathological examination, requesting a treatment protocol that could be pursued at home, considering the age of the dog and its reactive behavior during the examination. The present case report highlights a non-invasive method of diagnosing the hepatocutaneous syndrome in a dog by clinical examination, routine blood testing, and ultrasound assessment of the abdomen, in the absence of the possibility of doing a histopathological diagnosis.
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Affiliation(s)
- Anamaria-Hortensia Strichea
- Internal Medicine Clinic, Faculty of Veterinary Medicine, Iași University of Life Sciences, 8 M. Sadoveanu Alley, 700489 Iași, Romania;
| | - Ștefania Livia Hreniuc
- Diagnostic Imaging Clinic, Faculty of Veterinary Medicine, Iași University of Life Sciences, 8 M. Sadoveanu Alley, 700489 Iași, Romania;
| | - Gheorghe Solcan
- Internal Medicine Clinic, Faculty of Veterinary Medicine, Iași University of Life Sciences, 8 M. Sadoveanu Alley, 700489 Iași, Romania;
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3
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Jordan TJM, Mamo LB, Olivry T, Liu Z, Bizikova P. Re-evaluating the prevalence of anti-desmocollin-1 IgA autoantibodies in canine pemphigus foliaceus. Vet Immunol Immunopathol 2024; 273:110773. [PMID: 38820947 PMCID: PMC11268094 DOI: 10.1016/j.vetimm.2024.110773] [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: 03/12/2024] [Revised: 04/22/2024] [Accepted: 05/01/2024] [Indexed: 06/02/2024]
Abstract
Pemphigus foliaceus (PF) is an autoimmune skin disease of dogs characterized by intraepidermal pustules containing neutrophils and dissociated keratinocytes that develop in association with circulating and tissue-bound IgG autoantibodies. A subset of IgG autoantibodies in canine PF target desmocollin-1 (DSC1), a component of intercellular adhesion complexes within the epidermis. Passive transfer of IgG autoantibodies from canine PF sera to mice was previously shown to induce skin disease in the absence of infiltrating neutrophils. In attempts to identify a mechanism responsible for neutrophil recruitment, past studies evaluated the prevalence of IgA autoantibodies in canine PF sera where they were found in <20% of affected dogs. We re-evaluated the prevalence of anti-DSC1 IgA in canine PF due to concerns regarding the sensitivity of previously used methods. We hypothesized that anti-DSC1 IgA are present in most dogs with PF but have been under-detected due to competition with concurrent anti-DSC1 IgG for binding to their mutual antigenic target. Despite removing approximately 80% of IgG from patient sera using affinity chromatography, we did not detect an increase in anti-DSC1 IgA by performing indirect immunofluorescence on canine DSC1-transfected HEK293T cells. Taken together, our results do not support a role for pathogenic IgA in canine PF.
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Affiliation(s)
- Tyler J M Jordan
- North Caroline State University, College of Veterinary Medicine, Department of Clinical Sciences, 1060 William Moore Drive, Raleigh, NC 27607, USA; University of North Carolina School of Medicine, Department of Dermatology, 3122 Neuroscience Research Bldg., 115 Mason Farm Road, Chapel Hill, NC 27599, USA
| | - Lisa B Mamo
- North Caroline State University, College of Veterinary Medicine, Department of Clinical Sciences, 1060 William Moore Drive, Raleigh, NC 27607, USA
| | - Thierry Olivry
- North Caroline State University, College of Veterinary Medicine, Department of Clinical Sciences, 1060 William Moore Drive, Raleigh, NC 27607, USA
| | - Zhi Liu
- University of North Carolina School of Medicine, Department of Dermatology, 3122 Neuroscience Research Bldg., 115 Mason Farm Road, Chapel Hill, NC 27599, USA; University of North Carolina School of Medicine, Department of Microbiology and Immunology, 6th Floor Marsico Hall, 125 Mason Farm Road, Chapel Hill, NC 27599, USA; University of North Carolina School of Medicine, Lineberger Comprehensive Cancer Center, 450 West Drive, Chapel Hill, NC 27514, USA
| | - Petra Bizikova
- North Caroline State University, College of Veterinary Medicine, Department of Clinical Sciences, 1060 William Moore Drive, Raleigh, NC 27607, USA.
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Spriggs TS, Gedon NKY, Linder KE, Bizikova P. Comparison of selected cytomorphological features of canine pemphigus foliaceus and superficial pyoderma. Vet Dermatol 2024. [PMID: 38840462 DOI: 10.1111/vde.13267] [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: 01/09/2024] [Revised: 04/06/2024] [Accepted: 05/17/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Cytological detection of acantholytic keratinocytes (acantholytic cells [AC]) helps to identify canine pemphigus foliaceus (cPF) yet AC also occurs in superficial pyoderma (SP), the main differential diagnosis. HYPOTHESIS/OBJECTIVES To compare selected cytomorphological features of cPF and SP and to establish cytological diagnostic criteria that could differentiate cPF from SP. ANIMALS 40 and 51 client-owned dogs with PF and SP, respectively. MATERIALS AND METHODS Impression smears from cPF (64), impetigo (40) and exfoliative superficial pyoderma (ESP) (17) samples were stained with Romanowsky stain, randomised, blinded and evaluated by two investigators independently. The entire sample was screened (×500 or ×1000 magnification) for round (AC1), boat (AC2) and raft AC, eosinophils and bacteria. Interobserver agreements were calculated. RESULTS The average number of the 10 highest ×500 fields for AC1 and AC2 was significantly higher in PF than SP (p < 0.0001; Kruskal-Wallis test). Rafts and eosinophils were more common in PF than SP (p < 0.0001; chi-square test), while bacteria were rare in PF (5%; p < 0.0001; chi-square test). Observations between the experienced and novice investigators were highly correlated. An ROC analysis identified five AC1/×500-magnification field as a suitable cut-off value for predicting PF diagnosis. This cut-off value was tested by two additional investigators, who identified sensitivity of 84%-100%, specificity of 95%-97% and accuracy of 95%-96% for the diagnosis of cPF. CONCLUSIONS AND CLINICAL RELEVANCE Criterion-based impression smear cytological evaluation can provide strong evidence to support the clinical diagnosis. Acantholytic cell morphology varies in cPF and SP, and experience can improve accuracy in cytological differentiation.
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Affiliation(s)
- Tyler S Spriggs
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Natalie K Y Gedon
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Keith E Linder
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Petra Bizikova
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Edmonds KB, Her J, Langston C, Jennings R, Diaz S. Efficacy of therapeutic plasma exchange in a case of severe, generalised canine pemphigus foliaceus. Vet Dermatol 2024; 35:247-251. [PMID: 38044720 DOI: 10.1111/vde.13218] [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: 08/01/2023] [Revised: 09/15/2023] [Accepted: 11/20/2023] [Indexed: 12/05/2023]
Abstract
Successful treatment of pemphigus foliaceus (PF) often requires a multimodal therapeutic approach. The dog described herein underwent four therapeutic plasma exchange treatments for severe, refractory PF, resulting in a 50% reduction of lesional body surface area. This treatment option should be considered for the management of canine PF.
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Affiliation(s)
- Kaitlyn Bello Edmonds
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Columbus, Ohio, USA
| | - Jiwoong Her
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Columbus, Ohio, USA
| | - Catherine Langston
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Columbus, Ohio, USA
| | - Ryan Jennings
- Department of Veterinary Biosciences, College of Veterinary Medicine, Columbus, Ohio, USA
| | - Sandra Diaz
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Columbus, Ohio, USA
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Starr H, Howerth EW, Leon R, Gogal RM, Banovic F. Microarray Gene Expression Analysis of Lesional Skin in Canine Pemphigus Foliaceus. Vet Sci 2024; 11:89. [PMID: 38393106 PMCID: PMC10893259 DOI: 10.3390/vetsci11020089] [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: 12/11/2023] [Revised: 02/02/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Canine pemphigus foliaceus (PF) is considered the most common autoimmune skin disease in dogs; the mechanism of PF disease development is currently poorly understood. Therefore, this study aimed to characterize the molecular mechanisms and altered biological pathways in the skin lesions of canine PF patients. Using an RNA microarray on formalin-fixed, paraffin-embedded samples, we analyzed the transcriptome of canine PF lesional skin (n = 7) compared to healthy skin (n = 5). Of the 800 genes analyzed, 420 differentially expressed genes (DEGs) (p < 0.05) were found. Of those, 338 genes were significantly upregulated, including pro-inflammatory and Th17-related genes. Cell type profiling found enhancement of several cell types, such as neutrophils, T-cells, and macrophages, in PF skin compared to healthy skin. Enrichment analyses of the upregulated DEGs resulted in 78 statistically significant process networks (FDR < 0.05), including the Janus kinase signal transducer and activator of transcription (JAK-STAT) and mitogen-activated protein kinase (MAPK) signaling. In conclusion, canine PF lesional immune signature resembles previously published changes in human pemphigus skin lesions. Further studies with canine PF lesional skin using next-generation sequencing (e.g., RNA sequencing, spatial transcriptomics, etc.) and the development of canine keratinocyte/skin explant PF models are needed to elucidate the pathogenesis of this debilitating disease.
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Affiliation(s)
- Haley Starr
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (H.S.); (R.L.)
| | - Elizabeth W. Howerth
- Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
| | - Renato Leon
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (H.S.); (R.L.)
| | - Robert M. Gogal
- Department of Biomedical Sciences, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA;
| | - Frane Banovic
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA 30602, USA; (H.S.); (R.L.)
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Hernandez-Bures A, Bidot WA, Griffin CE, Rosenkrantz WS. The use of oclacitinib compared to azathioprine in the management of canine pemphigus foliaceus: A retrospective analysis. Vet Dermatol 2023; 34:554-566. [PMID: 37700599 DOI: 10.1111/vde.13203] [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: 01/15/2023] [Revised: 06/07/2023] [Accepted: 08/26/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Oclacitinib (Apoquel; Zoetis) has been reported to be beneficial for treating immune-mediated disorders. HYPOTHESIS/OBJECTIVES This retrospective study evaluates in which group of dogs [oclacitinib (OC) or azathioprine (AZ)] remission of pemphigus foliaceus (PF) was more effectively achieved with matched induction dosing of glucocorticoids; it further evaluates which group had a higher glucocorticoid-sparing effect. ANIMALS Review of 30 medical records of dogs diagnosed with PF presented to a private practice dermatological service. MATERIALS AND METHODS Retrospective analysis of dogs diagnosed with PF and treated with OC or AZ in combination with glucocorticoids. RESULTS There was no significant difference in the ability to induce remission between AZ and OC groups. In the AZ group, 13 of 15 dogs went into some type of remission (partial or complete), compared with 11 of 15 in the OC group. There was no significant difference between the two groups for the glucocorticoid-sparing effect. The AZ group had an average reduction of 77.9% from the induction glucocorticoid dose, and OC group had an average reduction of 64.4%. One of 15 patients in the AZ group and three of 15 patients in the OC group had a 100% reduction of the glucocorticoid dose. CONCLUSIONS AND CLINICAL RELEVANCE These results indicate that OC can be considered as a treatment option for canine PF.
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Affiliation(s)
| | - Wille A Bidot
- Office of Animal Resources, Western University of Health Sciences, Pomona, California, USA
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Gedon NKY, Bizikova P, Olivry T, Mendoza-Kuznetsova E, Oberkirchner U, Robertson JB, Linder KE. Histopathological characterisation of trunk-dominant canine pemphigus foliaceus, and comparison with classic facial and insecticide-triggered forms. Vet Dermatol 2023; 34:425-440. [PMID: 37316895 DOI: 10.1111/vde.13174] [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: 01/14/2023] [Revised: 03/14/2023] [Accepted: 03/24/2023] [Indexed: 06/16/2023]
Abstract
BACKGROUND While the clinical features were described recently, the histopathological characterisation of trunk-dominant canine pemphigus foliaceus (PF) is lacking, and whether it differs from classic facial or insecticide-triggered PF is unknown. HYPOTHESIS/OBJECTIVES This study describes the histopathological findings of trunk-dominant PF, and compares the results to classic facial and insecticide-triggered PF. ANIMALS Skin biopsies from 103 dogs with clinically characterised trunk-dominant (n = 33), classic facial (n = 26) and insecticide-triggered PF (n = 44) were included. MATERIALS AND METHODS Histological sections, randomised and blinded, were scored for over 50 morphological parameters of pustules, epidermis, dermis, adnexa and crusts. Intact pustule area and width were measured by digital microscopy. RESULTS In trunk-dominant PF, 77 intact pustules were predominantly subcorneal (0.0019-1.940 mm2 area, 0.0470-4.2532 mm wide), and contained from one to over 100 acantholytic keratinocytes. Pustules had boat acantholytic cells, corneocytes, perinuclear eosinophilic rings, neutrophil rosettes, acantholytic cell necrosis, rafts, cling-ons and/or eosinophils. Peripustular epidermal spongiosis, necrosis and lymphocyte exocytosis occurred, as did follicular pustules. Mixed dermal inflammation often contained eosinophils. Trunk-dominant PF did not differ from the other PF groups except for few parameters, such as having fewer rafts (p = 0.003). Additional autoimmune inflammatory patterns occurred in all PF groups. CONCLUSIONS AND CLINICAL RELEVANCE Trunk-dominant PF and other canine PF variants are histologically similar, which indicates shared pathomechanisms. The identification of common boat acantholytic cells and corneocyte separation has implications for the mechanisms of acantholysis. The diversity of histopathological and polyautoimmunity features support complicated immune mechanisms. Finally, results indicate that diagnostic biopsies cannot differentiate between these PF variants in dogs.
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Affiliation(s)
| | - Petra Bizikova
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | - Thierry Olivry
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
| | | | | | | | - Keith Emerson Linder
- College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina, USA
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Starr H, Howerth E, Gogal R, Barber J, Leon R, Blubaugh A, Banovic F. Characterization of the serum and skin inflammatory profile in canine pemphigus foliaceus using multiplex assay and quantitative real-time polymerase chain reaction (qRT-PCR). Vet Immunol Immunopathol 2023; 262:110631. [PMID: 37473673 DOI: 10.1016/j.vetimm.2023.110631] [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: 05/30/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/22/2023]
Abstract
Canine pemphigus foliaceus (PF) is a common autoimmune skin disease characterized by autoantibodies binding to epithelial adhesion molecules resulting inflammatory response. The immune network of cytokine and chemokine abnormalities that characterize the immune response in canine PF are poorly explored. This study evaluated serum and lesional skin cytokine and chemokine profiles of dogs diagnosed with PF compared to healthy control dogs. Serum samples obtained from 11 PF dogs and 16 healthy control dogs were analyzed using commercially available canine multiplex assay for 13 biomarkers (Canine Milliplex assay). Eight lesional skin samples from seven PF dogs and five healthy site-matched samples from five healthy dogs were evaluated for 20 immune markers using quantitative real-time PCR. Immunomodulating medications were suspended for at least four weeks in all dogs before obtaining serum and skin samples. PF patients showed significantly higher serum concentrations of tumor necrosis factor-α, interleukin (IL)- 6, IL-8, IL-18, CCL2, KC-like, and granulocyte-macrophages colony-stimulating factor when compared to healthy controls (Mann-Whitney U test; p < 0.05 for all). Lesional PF skin exhibited significant expression and upregulation of pro-inflammatory/T helper (Th1) 1 markers IL-1β, MX1, GZMB, OAS1, and IFN-γ as well as Th2 cytokines IL-13, IL-33, TSLP, IL-31 and Th17/22 markers IL-17A and IL-22 (Mann-Whitney U test; p < 0.05 for all). Taken together, the findings from this study describe the role of numerous cytokines and chemokines associated with immune response in the skin and serum of canine PF patients. Further larger-sample proteomics and RNA-sequencing transcriptomics studies are needed to understand the immune pathogenesis of canine PF skin lesions.
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Affiliation(s)
- Haley Starr
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine University of Georgia, Athens, GA 30602, USA
| | - Elizabeth Howerth
- Department of Pathology, College of Veterinary Medicine University of Georgia, Athens, GA 30602, USA
| | - Robert Gogal
- Department of Biosciences and Diagnostic Imaging, University of Georgia, Athens, GA 30602, USA
| | - Jamie Barber
- Department of Infectious Disease, University of Georgia, Athens, GA 30602, USA
| | - Renato Leon
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine University of Georgia, Athens, GA 30602, USA
| | - Amanda Blubaugh
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine University of Georgia, Athens, GA 30602, USA
| | - Frane Banovic
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine University of Georgia, Athens, GA 30602, USA.
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10
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Hobi S, Barrs VR, Bęczkowski PM. Dermatological Problems of Brachycephalic Dogs. Animals (Basel) 2023; 13:2016. [PMID: 37370526 DOI: 10.3390/ani13122016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 06/01/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
Brachycephalic dogs are not only affected by brachycephalic obstructive airway syndrome (BOAS), but are also frequently referred to veterinary dermatologists for skin conditions, with English bulldogs and pugs particularly over-represented. Some skin diseases, such as skin fold dermatitis, are directly associated with the abnormal anatomic conformation of brachycephalic dogs, while for others, such as atopic dermatitis and viral pigmented plaques, there is an underlying genetic basis or a general predisposition. Anatomic alterations associated with brachycephaly, leading to fold formation of the skin and stenosis of the ear canal, together with primary immunodeficiencies described in some breeds, favor the development of pyoderma, Malassezia dermatitis, and otitis externa/media. In addition, the frequently neglected but often lifelong dermatological problems of brachycephalic dogs are an important consideration when discussing genetic and medical conditions affecting the welfare of those dogs. Here we review the current state of knowledge concerning dermatological problems in brachycephalic dogs and combine it with clinical experience in the management of these challenging disorders.
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Affiliation(s)
- Stefan Hobi
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Vanessa R Barrs
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
- Centre for Animal Health and Welfare, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
| | - Paweł M Bęczkowski
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong SAR, China
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van Amersfort K, van der Lee A, Hagen-Plantinga E. Evidence-base for the beneficial effect of nutraceuticals in canine dermatological immune-mediated inflammatory diseases - A literature review. Vet Dermatol 2023. [PMID: 36938651 DOI: 10.1111/vde.13152] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 11/01/2022] [Accepted: 11/26/2022] [Indexed: 03/21/2023]
Abstract
BACKGROUND Immune-mediated inflammatory diseases (IMIDs) are associated with an abnormal immune response, resulting in a disturbed homeostasis and chronic inflammation. Most canine dermatological IMIDs (cDIMIDs), such as allergies, autoimmune and immune-mediated diseases, require long-term treatment with immunosuppressive drugs with potential adverse effects. In general, nutraceuticals are thought to be safe. As a result, there is a tendency for the more frequent use of nutraceuticals in veterinary medicine. OBJECTIVES The aim of this review was to present evidence-based proof for the use of various nutraceuticals in the treatment of cDIMIDs and, where possible, to provide conclusions to guide their use in veterinary dermatological practice. METHODS A comprehensive literature search on common cDIMIDs and nutraceuticals was performed. Only peer-reviewed articles published in English and related to the study topic were included. A total of 64 eligible publications were classified in five categories based on study design and substantively assessed on additional criteria such as standardisation of diets and number of included animals. For final appraisal, classification of major, minor or no evidence was used whereby efficacy was based on clinical outcome measurements. CONCLUSIONS Minor evidence for the beneficial use of several nutraceuticals, including essential fatty acids, niacinamide and probiotics, was found for treatment of specific cDIMIDs. These nutraceuticals may improve clinical signs or reduce the required dose of concurrent medication (e.g. drug-sparing effect) in some dogs. Some nutraceuticals also may be used for long-term maintenance therapy. Despite some promising findings, major evidence for the use of nutraceuticals in cDIMIDs is lacking, warranting further research.
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12
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Bizikova P, Linder KE, Mamo LB. Trunk-dominant and classic facial pemphigus foliaceus in dogs - comparison of anti-desmocollin-1 and anti-desmoglein-1 autoantibodies and clinical presentations. Vet Dermatol 2022; 33:414-425. [PMID: 35670648 DOI: 10.1111/vde.13094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 01/25/2022] [Accepted: 03/15/2022] [Indexed: 11/28/2022]
Abstract
BACKGROUND Canine trunk-dominant pemphigus foliaceus (PF) is mentioned rarely in the literature. HYPOTHESIS/OBJECTIVES The goal of this study was to provide clinical description of trunk-dominant PF and to demonstrate the prevalence of serum antikeratinocyte, anti-desmocollin-1 (DSC1) and anti-desmoglein-1 (DSG1) antibodies, and determine their diagnostic value in this particular PF phenotype. MATERIALS AND METHODS Clinically relevant information was collected from 31, 25 and 34 dogs with trunk-dominant and facial PF and superficial pyoderma (SP), respectively. Sera from these dogs were tested for antikeratinocyte, anti-DSC1 and anti-DSG1 antibodies using indirect immunofluorescence on canine tissues and DSC1- and DSG1-transfected cells. Sera from healthy dogs and dogs with clinically irrelevant diseases served as controls. RESULTS Footpad involvement and grouped/polycyclic lesion organisation were identified as features of both PF phenotypes, and not of SP. Antikeratinocyte immunoglobulin (Ig)G was not specific for canine PF. By contrast, antigen-specific IgG was detected only in PF sera; anti-DSC1 IgG in 100% and 58% of dogs with facial and trunk-dominant PF, respectively, and anti-DSG1 IgG in 7% of dogs with trunk-dominant PF only. CONCLUSIONS Trunk-dominant PF shares DSC1 as a major autoantigen with facial PF. The ability to detect anti-DSC1 IgG is lower in trunk-dominant PF, yet despite the lower sensitivity, the positive predictive value and accuracy of this particular anti-DSC1 IgG test are high. A negative test result, however, cannot exclude the diagnosis, and characteristic clinical features such as footpad involvement and/or grouped/polycyclic lesions must be considered when distinguishing trunk-dominant PF from its most relevant differential diagnosis: SP.
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Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences, College of Veterinary Medicine, NC State University, Raleigh, NC, USA
| | - Keith E Linder
- Department of Population Health and Pathobiology, College of Veterinary Medicine, NC State University, Raleigh, NC, USA
| | - Lisa B Mamo
- Department of Clinical Sciences, College of Veterinary Medicine, NC State University, Raleigh, NC, USA
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13
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Lombardo MS, Bärsch C, Hewicker-Trautwein M, Puff C. [Eccrine adenoma in a cat]. TIERARZTLICHE PRAXIS. AUSGABE K, KLEINTIERE/HEIMTIERE 2022; 50:144-147. [PMID: 35523168 DOI: 10.1055/a-1792-9894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Tumors originating from eccrine glands are rare findings in dogs and cats. In most cases, the tumors are malignant, while adenomas are only reported anecdotally. In the present case, a one-year-old female, spayed cat was presented with a swelling of the footpad of the right forelimb. Initially, the mass possessed a diameter of 2 cm which progressed to 4 cm within the following two months. At the latter time point the tumor was ulcerated. After surgical removal, histological and immunohistochemical analyses were performed. Histologically, a well demarcated, nodular, multilobular mass was present. The cuboidal to columnar neoplastic cells were arranged in tubular and acinar structures. Tumor cells possessed large, round to oval nuclei with moderately distinct nucleoli. Mitotic figures averaged 0-1 per high power field. Additionally, large areas of chondroid metaplasia were evident. Immunohistochemically, neoplastic cells were positive for pan-cytokeratin AE1/AE3 whereas thyroid transcription factor 1 (TTF1) was not expressed. Based on the histological and immunohistochemical findings an adenoma of the eccrine glands was diagnosed.
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Affiliation(s)
| | | | | | - Christina Puff
- Institut für Pathologie, Stiftung Tierärztliche Hochschule Hannover
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14
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Chong E, Austel M, Banovic F. A Retrospective Evaluation of the Steroid-Sparing Effect of Oral Modified Ciclosporin for Treatment of Canine Pemphigus Foliaceus. Vet Sci 2022; 9:vetsci9040153. [PMID: 35448651 PMCID: PMC9029188 DOI: 10.3390/vetsci9040153] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/10/2022] [Accepted: 03/21/2022] [Indexed: 02/06/2023] Open
Abstract
The efficacy of ciclosporin as an adjuvant immunosuppressant administered with glucocorticoids (GCs) for induction of canine PF remission is unknown. This study is a retrospective review of medical records from 2015 to 2020 to evaluate the therapeutic outcomes of 11 PF dogs treated with oral modified ciclosporin and GCs. Concurrent GCs were given with ciclosporin to all PF dogs. Nine dogs (9/11) achieved complete remission (CR); five dogs received ciclosporin at a mean dose of 6.2 mg/kg/day; and four dogs received a combination of ciclosporin and ketoconazole at a mean dose of 3 mg/kg/day, respectively. Two dogs (2/11) showed only 25% or poor response, with the development of new PF lesions during treatment. The mean duration of ciclosporin therapy for nine dogs to achieve CR was 65 days (median 57 days, range 24–119 days). Slow tapering of oral GCs while continuing ciclosporin at the same dose and frequency in nine dogs with CR led to recurrence of PF lesions in four dogs, whereas, in five dogs, oral glucocorticoids were discontinued without a PF flare. Oral modified ciclosporin combined with GCs achieved CR in 9 out of 11 PF dogs during the induction phase in this study.
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15
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Hobi S, Beatty JA, Sandy JR, Barrs VR. Successful management of feline pemphigus foliaceus with pentoxifylline and topical hydrocortisone aceponate. Vet Med Sci 2022; 8:937-944. [PMID: 35212177 PMCID: PMC9122467 DOI: 10.1002/vms3.768] [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] [Indexed: 11/10/2022] Open
Abstract
The treatment regimen for feline pemphigus foliaceus (PF), an autoimmune disease caused by auto-antibodies against proteins of the desmosome junction, usually includes high doses of oral or parenteral immunosuppressive drugs, typically glucocorticoids. This case adds to a growing body of evidence that topical hydrocortisone aceponate is effective for the treatment of feline PF, and demonstrates the practical use of a non-invasive diagnostic method for histopathology when owners refuse a biopsy to support a clinical diagnosis of PF. Finally, this case highlights an international trend of owner-initiated treatment of feline infectious peritonitis (FIP) using unlicensed, unregistered drugs.
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Affiliation(s)
- Stefan Hobi
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University, Kowloon, Hong Kong, China
| | - Julia A Beatty
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University, Kowloon, Hong Kong, China
| | - Jeanine R Sandy
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University, Kowloon, Hong Kong, China
| | - Vanessa R Barrs
- Department of Veterinary Clinical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University, Kowloon, Hong Kong, China
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16
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Putra A, Austel M, Banovic F. A retrospective evaluation of the steroid sparing effects of oral mycophenolate mofetil (MMF) as an adjunct immunosuppressant for the treatment of canine pemphigus foliaceus. Vet Dermatol 2021; 33:77-e24. [PMID: 34697841 DOI: 10.1111/vde.13028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/31/2021] [Indexed: 11/27/2022]
Abstract
BACKGROUND Oral mycophenolate mofetil (MMF) is currently considered a low-risk steroid-sparing therapeutic option the management of canine pemphigus foliaceus (PF). OBJECTIVES This retrospective study evaluates the therapeutic outcomes of dogs with PF treated with the combination of oral MMF and GC. Clinical outcomes and side effects are reported. ANIMALS Eleven dogs diagnosed with PF. METHODS AND MATERIALS Retrospective review of medical records from dogs presented with PF to the dermatology service of a veterinary teaching hospital 2015-2020. RESULTS Eleven dogs were identified which had received concurrent GCs and MMF. The MMF dose range was 19.8-45 mg/kg/day. Only two dogs (2/11) treated with a mean MMF dosage of 39 mg/kg/day along with oral prednisone or dexamethasone achieved complete remission (CR). Partial remission (PR) was achieved in 4/11 dogs who received either prednisone, prednisolone or dexamethasone along with MMF (mean dosage 26 mg/kg/day). Four dogs (4/11) showed poor response to MMF given at 28.5 mg/kg/day along with prednisone or dexamethasone. In one dog (1/11) MMF was discontinued due to severe GI upset; transient vomiting and diarrhea was observed in 4/11 dogs. The median duration of MMF therapy in conjunction with GC for all groups was 70.5 days. Tapering of oral GCs while continuing MMF administration at the same dosage and frequency led to recurrence of lesions in all PF patients. CONCLUSION Oral MMF combined with GC achieved CR in 2 out of 11 PF dogs included in this study. Further research of MMF efficacy in PF may need to be performed.
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Affiliation(s)
- Andhika Putra
- Department of Small Animal Medicine and Surgery, University of Georgia College of Veterinary Medicine, Athens, GA, USA
| | - Michaela Austel
- Department of Small Animal Medicine and Surgery, University of Georgia College of Veterinary Medicine, Athens, GA, USA
| | - Frane Banovic
- Department of Small Animal Medicine and Surgery, University of Georgia College of Veterinary Medicine, Athens, GA, USA
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17
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Raef HS, Piedra-Mora C, Wong NB, Ma DJ, David CN, Robinson NA, Almela RM, Richmond JM. Gene Expression Analysis in Four Dogs With Canine Pemphigus Clinical Subtypes Reveals B Cell Signatures and Immune Activation Pathways Similar to Human Disease. Front Med (Lausanne) 2021; 8:723982. [PMID: 34660634 PMCID: PMC8511432 DOI: 10.3389/fmed.2021.723982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 09/06/2021] [Indexed: 11/13/2022] Open
Abstract
Pemphigus is a group of autoimmune-mediated mucocutaneous blistering diseases characterized by acantholysis. Pemphigus has also been recognized in dogs and shares similar clinical characteristics and variants with human pemphigus. While relationships between human and canine pemphigus have been reported, gene expression patterns across species have not been described in the literature. We sought to perform gene expression analysis of lesional skin tissue from four dogs with various forms of pemphigus to examine gene expression during spontaneous disease in dogs. We found increased T and B cell signatures in canine pemphigus lesions compared to controls, as well as significant upregulation of CCL3, CCL4, CXCL10, and CXCL8 (IL8), among other genes. Similar chemokine/cytokine expression patterns and immune infiltrates have been reported in humans, suggesting that these genes play a role in spontaneous disease. Direct comparison of our dataset to previously published human pemphigus datasets revealed five conserved differentially expressed genes: CD19, WIF1, CXCL10, CD86, and S100A12. Our data expands our understanding of pemphigus and facilitates identification of biomarkers for prediction of disease prognosis and treatment response, which may be useful for future veterinary and human clinical trials.
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Affiliation(s)
- Haya S Raef
- Department of Dermatology, UMass Medical School, Worcester, MA, United States.,Tufts University School of Medicine, Boston, MA, United States
| | - Cesar Piedra-Mora
- Clinical Sciences Department, Tufts Cummings School of Veterinary Medicine, Grafton, MA, United States
| | - Neil B Wong
- Department of Dermatology, UMass Medical School, Worcester, MA, United States
| | - Diana Junyue Ma
- Department of Dermatology, UMass Medical School, Worcester, MA, United States
| | | | - Nicholas A Robinson
- Clinical Sciences Department, Tufts Cummings School of Veterinary Medicine, Grafton, MA, United States
| | - Ramón M Almela
- Clinical Sciences Department, Tufts Cummings School of Veterinary Medicine, Grafton, MA, United States
| | - Jillian M Richmond
- Department of Dermatology, UMass Medical School, Worcester, MA, United States
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18
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Curtiss JB, Lewis M, Mitchell EP. Pemphigus foliaceus in Arabian oryx ( Oryx leucoryx). Vet Pathol 2021; 58:1142-1146. [PMID: 34318735 DOI: 10.1177/03009858211030532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Pemphigus foliaceus (PF) is an autoimmune acantholytic skin disease described in humans, dogs, cats, horses, goats, and sheep. From 2003 to 2016, six Arabian oryx (Oryx leucoryx) at the National Zoological Garden in Pretoria, South Africa, developed progressive, bilaterally symmetrical, hyperkeratotic skin lesions and pustules consistent with PF. Lesions were similar to those observed in domestic animals and primarily affected the pinnae, face and nasal planum, distal legs, and tail tip. Histological evaluation of suspect PF skin lesions in affected animals, evaluation of medical records for treatments received, causative agents in the diet and environment, and special stains for infectious organisms yielded no consistent inciting cause. The Arabian oryx is a species highly adapted to arid environments of the desert and has recently survived from a severe genetic bottleneck; both of these factors may have contributed to the development of PF in these animals.
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Affiliation(s)
- Jeffrey B Curtiss
- Zoological Pathology Program, University of Illinois at Urbana-Champaign, Chicago, IL, USA
| | - Michelle Lewis
- National Zoological Garden, South African National Biodiversity Institute, Pretoria, South Africa.,Paraclinical Sciences and Centre for Veterinary Wildlife Studies, University of Pretoria, Onderstepoort, South Africa
| | - Emily P Mitchell
- National Zoological Garden, South African National Biodiversity Institute, Pretoria, South Africa.,Paraclinical Sciences and Centre for Veterinary Wildlife Studies, University of Pretoria, Onderstepoort, South Africa
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19
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Zhou Z, Corner S, Petersen A, Rosser E, Noland EL. Clinical presentation, treatment and outcome in dogs with pemphigus foliaceus with and without vasculopathic lesions: an evaluation of 41 cases. Vet Dermatol 2021; 32:503-e139. [PMID: 34189786 DOI: 10.1111/vde.12996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 04/14/2021] [Accepted: 04/30/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Concurrent vasculopathic lesions in dogs with pemphigus foliaceus (PF) have been observed anecdotally yet not reported in the literature. Any association with prognosis is unclear. HYPOTHESIS/OBJECTIVES To compare clinical features and outcome of PF in dogs with and without vasculopathic lesions. ANIMALS Archived, formalin-fixed, paraffin-embedded biopsy samples of 41 dogs with PF. METHODS AND MATERIALS Archived, formalin-fixed, paraffin-embedded biopsy samples with a histological diagnosis of PF were selected and re-evaluated independently. Dogs were assigned to groups following histological evaluation: Group 1 (no vasculopathic lesions) and Group 2 (vasculopathic lesions present). Group 2 was subdivided into Group 2a (vasculopathic lesions without vasculitis - i.e. vasculopathy) and Group 2b (overt vasculitis). Medical records from identified cases were reviewed retrospectively for data on clinical presentation, treatment and outcome. RESULTS Time to remission was longer in Group 2b (93.8 days) compared to Group 1 (41.8 days) (P = 0.047). Dogs in groups 2a and 2b were more likely to have systemic signs of illness at presentation (P = 0.028 and P = 0.032, respectively) compared to Group 1. Dogs in Group 2b were more likely to have adverse effects associated with treatment than dogs in Group 1 (P = 0.004). There were no significant differences in lesion type, distribution, rates of remission, recurrence or corticosteroid dosage between groups. CONCLUSIONS AND CLINICAL IMPORTANCE Dogs with PF and concurrent vasculitis took longer to achieve remission and were more likely to have systemic signs of illness or adverse effects associated with treatment than dogs with PF without concurrent vasculopathic lesions.
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Affiliation(s)
- Zijin Zhou
- Small Animal Clinical Sciences, Michigan State University College of Veterinary Medicine, East Lansing, MI, USA
| | - Sarah Corner
- Veterinary Diagnostic Laboratory, Michigan State University College of Veterinary Medicine, East Lansing, MI, USA
| | - Annette Petersen
- Small Animal Clinical Sciences, Michigan State University College of Veterinary Medicine, East Lansing, MI, USA
| | - Edmund Rosser
- Small Animal Clinical Sciences, Michigan State University College of Veterinary Medicine, East Lansing, MI, USA
| | - Erica L Noland
- Pathobiology & Diagnostic Investigation, Michigan State University College of Veterinary Medicine, East Lansing, MI, USA
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20
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Harman RM, Marx C, Van de Walle GR. Translational Animal Models Provide Insight Into Mesenchymal Stromal Cell (MSC) Secretome Therapy. Front Cell Dev Biol 2021; 9:654885. [PMID: 33869217 PMCID: PMC8044970 DOI: 10.3389/fcell.2021.654885] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/01/2021] [Indexed: 12/13/2022] Open
Abstract
The therapeutic potential of the mesenchymal stromal cell (MSC) secretome, consisting of all molecules secreted by MSCs, is intensively studied. MSCs can be readily isolated, expanded, and manipulated in culture, and few people argue with the ethics of their collection. Despite promising pre-clinical studies, most MSC secretome-based therapies have not been implemented in human medicine, in part because the complexity of bioactive factors secreted by MSCs is not completely understood. In addition, the MSC secretome is variable, influenced by individual donor, tissue source of origin, culture conditions, and passage. An increased understanding of the factors that make up the secretome and the ability to manipulate MSCs to consistently secrete factors of biologic importance will improve MSC therapy. To aid in this goal, we can draw from the wealth of information available on secreted factors from MSC isolated from veterinary species. These translational animal models will inspire efforts to move human MSC secretome therapy from bench to bedside.
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Affiliation(s)
| | | | - Gerlinde R. Van de Walle
- Baker Institute for Animal Health, College of Veterinary Medicine, Cornell University, Ithaca, NY, United States
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21
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Tham HL, Linder KE, Olivry T. Deep pemphigus (pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus) in dogs, cats and horses: a comprehensive review. BMC Vet Res 2020; 16:457. [PMID: 33228633 PMCID: PMC7686683 DOI: 10.1186/s12917-020-02677-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 11/13/2020] [Indexed: 12/28/2022] Open
Abstract
Pemphigus is the term used to describe a group of rare mucocutaneous autoimmune bullous diseases characterized by flaccid blisters and erosions of the mucous membranes and/or skin. When the autoantibodies target desmosomes in the deep layers of the epidermis, deep pemphigus variants such as pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus develop. In this article, we will review the signalment, clinical signs, histopathology and treatment outcome of pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus in dogs, cats and horses; where pertinent, we compare the animal diseases to their human homologue. Canine, feline and equine pemphigus vulgaris, pemphigus vegetans and paraneoplastic pemphigus have many features similar to the human counterpart. These chronic and often relapsing autoimmune dermatoses require aggressive immunosuppressive therapy. In animals, the partial-to-complete remission of pemphigus vulgaris and pemphigus vegetans has been achieved with high dose glucocorticoid therapy, with or without adjunct immunosuppressants; the prognosis is grave for paraneoplastic pemphigus.
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Affiliation(s)
- Heng L. Tham
- Department of Small Animal Clinical Sciences, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, VA USA
| | - Keith E. Linder
- Comparative Medicine Institute, College of Veterinary Medicine, North Carolina State University, Raleigh, NC USA
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, Raleigh, NC USA
| | - Thierry Olivry
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, NC USA
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22
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Piccione ML, Layne EA, Shaw GC. Pemphigus foliaceus in two pet Nigerian Dwarf goats. VETERINARY RECORD CASE REPORTS 2020. [DOI: 10.1136/vetreccr-2020-001162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Two male Nigerian Dwarf pet goats from a group of three living in rural southern Wisconsin, USA, presented at the same time with an eight-month history of pruritus and marked crusting on head, axillae and inguinal regions. Parasite investigations were negative, and there was no response to antiparasitic treatment. Fungal and bacterial cultures did not reveal a cause. Histopathology was consistent with a diagnosis of pemphigus foliaceus, and goats were treated with immunosuppressive doses of injectable dexamethasone sodium phosphate. After six weeks of treatment, clinical remission was achieved, and immunosuppressive therapy was continued. Three months later, goat 2 developed presumptive viral pneumonia; necropsy reported presumptive caprine arthritis encephalitis virus. One year into treatment, goat 1 developed similar clinical signs and was euthanased. In goats, pemphigus foliaceus is rare and can be treated using glucocorticoids, but as in other species, chronic immunosuppression increases susceptibility to infections.
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23
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Levy BJ, Mamo LB, Bizikova P. Detection of circulating anti-keratinocyte autoantibodies in feline pemphigus foliaceus. Vet Dermatol 2020; 31:378-e100. [PMID: 32372490 DOI: 10.1111/vde.12861] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Circulating anti-keratinocyte immunoglobulin (Ig)G targeting desmosomal proteins have been identified in people and dogs with pemphigus foliaceus (PF). By contrast, detection attempts in PF-affected cats have been largely unsuccessful. HYPOTHESIS/OBJECTIVES To detect circulating anti-keratinocyte autoantibodies in PF-affected cats and determine their titres and tissue-staining patterns. ANIMALS Thirty PF-affected cats were compared to 11 specific-pathogen free, 15 healthy and 31 allergic cats. METHODS AND MATERIALS Sera were tested by indirect immunofluorescence on canine footpad and buccal mucosal substrates. RESULTS Circulating, anti-keratinocyte IgG with a suprabasilar, web-like (intercellular) pattern were detected in the majority of PF-affected cats (23 of 30, 77%), some allergic cats (six of 31, 19%) and one healthy cat (7%). Both footpad epidermis and buccal mucosa were positive in the majority of seropositive PF-affected cats (21 of 23, 91%), and in only one of six (17%) seropositive allergic cats. Staining was limited to the footpad in the remaining seropositive PF-affected and allergic cats and one seropositive healthy cat. Reciprocal IgG titres were significantly higher in PF-affected cats compared to controls (Dunn's post-test, P < 0.0001). Anti-keratinocyte IgM, IgA or IgE were not detected in any sera. CONCLUSIONS AND CLINICAL IMPORTANCE These results confirm the presence of circulating anti-keratinocyte IgG in a majority of PF-affected cats and in a small percentage of healthy and allergic cats. Although the molecular target and pathogenic nature of the antibodies remains unknown, the detection of positive immunostaining on buccal mucosal tissue, in addition to the footpad, suggests that the major target antigen of feline PF differs from that reported in dogs.
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Affiliation(s)
- Britt J Levy
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Lisa B Mamo
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Petra Bizikova
- Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, NC, 27606, USA
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24
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Bardagí M, Monaco M, Fondevila D. Sterile or nonantibiotic-responsive pustular dermatitis and canine leishmaniosis: a 14 case series description and a statistical association study on 2420 cases. Vet Dermatol 2020; 31:197-e41. [PMID: 31960512 DOI: 10.1111/vde.12828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 09/21/2019] [Accepted: 10/29/2019] [Indexed: 11/27/2022]
Abstract
Background - No striking clinical and histopathological features of pustular dermatitis (PustD) in dogs suffering from canine leishmaniosis (CanL) have been identified; an association between CanL and PustD has not been demonstrated. Objectives - To characterize a series of dogs affected by CanL and pruritic PustD, and to evaluate a possible association between the two conditions. Conclusions - An association exists between PustD and CanL. At least in Leishmania-endemic areas, CanL should be ruled out before attempting an immunosuppressive treatment in dogs with PustD with the aforementioned characteristics. Staging of CanL through diagnostic procedures besides immunohistochemistry and PCR is recommended. Anti-leishmania treatment and short-to-medium courses of low-dose anti-inflammatory or immunomodulatory drugs are effective in controlling the clinical signs of PustD.
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Affiliation(s)
- Mar Bardagí
- Ars Veterinaria, Carrer dels Cavallers, 37, Barcelona, 08034, Spain.,Department of Animal Medicine and Surgery, Universitat Autònoma de Barcelona (UAB), Bellaterra, Barcelona, 08193, Spain
| | - Moira Monaco
- Veterinaria Lido, via Alessandro Piola Caselli 49/51, Rome, 00122, Italy
| | - Dolors Fondevila
- Department of Animal Medicine and Surgery, Universitat Autònoma de Barcelona (UAB), Bellaterra, Barcelona, 08193, Spain
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25
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White A, Hicks K, Bizikova P, Bailey J, Linder K. Probable drug‐triggered pemphigus foliaceus in a dog following administration of afoxolaner (NexGard). VETERINARY RECORD CASE REPORTS 2019. [DOI: 10.1136/vetreccr-2018-000735] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Amelia White
- Department of Clinical SciencesAuburn College of Veterinary MedicineAuburnAlabamaUSA
| | - Karly Hicks
- Department of Clinical SciencesAuburn College of Veterinary MedicineAuburnAlabamaUSA
| | - Petra Bizikova
- College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
| | - Jessica Bailey
- Department of PathobiologyAuburn College of Veterinary MedicineAuburnAlabamaUSA
| | - Keith Linder
- College of Veterinary MedicineNorth Carolina State UniversityRaleighNorth CarolinaUSA
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26
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Jordan TJ, Affolter VK, Outerbridge CA, Goodale EC, White SD. Clinicopathological findings and clinical outcomes in 49 cases of feline pemphigus foliaceus examined in Northern California, USA (1987–2017). Vet Dermatol 2019; 30:209-e65. [DOI: 10.1111/vde.12731] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/08/2019] [Indexed: 12/24/2022]
Affiliation(s)
- Tyler J.M. Jordan
- William R. Pritchard Veterinary Medical Teaching Hospital School of Veterinary Medicine University of California, Davis 1 Garrod Drive Davis CA 95616 USA
| | - Verena K. Affolter
- Department of Pathology, Microbiology and Immunology School of Veterinary Medicine University of California, Davis One Shields Avenue Davis CA 95616 USA
| | - Catherine A. Outerbridge
- Department of Medicine and Epidemiology School of Veterinary Medicine University of California, Davis One Shields Avenue Davis CA 95616 USA
| | - Elizabeth C. Goodale
- Yu of Guelph Veterinary Dermatology Guelph Veterinary Specialty Hospital 1460 Gordon Street South Guelph Ontario Canada N1L 1C8
| | - Stephen D. White
- Department of Medicine and Epidemiology School of Veterinary Medicine University of California, Davis One Shields Avenue Davis CA 95616 USA
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27
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Bizikova P, Burrows A. Feline pemphigus foliaceus: original case series and a comprehensive literature review. BMC Vet Res 2019; 15:22. [PMID: 30626385 PMCID: PMC6327590 DOI: 10.1186/s12917-018-1739-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 12/05/2018] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Since the first description of feline pemphigus foliaceus (PF) more than 30 years ago, numerous case reports have been published, while larger case series have remained rare. This large body of information, if extrapolated, could address clinical discrepancies and expand our knowledge about the treatment of feline PF. This manuscript reviews cases of feline PF published between 1950 and 2016 and adds additional 35 original cases to provide further insight into the clinical aspect and treatment outcome of this disease. RESULTS Feline PF, while being a primary acantholytic pustular dermatosis, presents most often with crusts and erosions that predominantly affect the face and feet. More than half of cats with active disease exhibits non-dermatological signs such as lethargy, fever and/or anorexia. The prognosis of feline PF is good as the majority of cats rapidly achieve disease control even with the most basic treatment such as glucocorticoid monotherapy. Most PF-affected cats, however, require long-term treatment and, like other autoimmune diseases, feline PF has a tendency to relapse spontaneously or with treatment changes. CONCLUSIONS Therefore, despite the overall good prognosis cats with PF can be given, owners should be informed and prepared for these circumstances, which may reduce the risk of euthanasia in the case of disease relapse, and improve treatment compliance.
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Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC 27607 USA
- Center for Comparative Medicine and Translational Research, North Carolina State University, Raleigh, NC USA
| | - Amanda Burrows
- Murdoch University Veterinary Hospital, School of Veterinary and Biomedical Science, Murdoch University, Murdoch, WA Australia
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29
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Coyner K, Tater K, Rishniw M. Feline pemphigus foliaceus in non-specialist veterinary practice: a retrospective analysis. J Small Anim Pract 2018; 59:553-559. [DOI: 10.1111/jsap.12869] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 04/06/2018] [Accepted: 04/28/2018] [Indexed: 11/28/2022]
Affiliation(s)
- K. Coyner
- Dermatology Clinic for Animals; Lacey WA 98516 USA
| | - K. Tater
- Veterinary Information Network; Davis CA 95616 USA
| | - M. Rishniw
- Veterinary Information Network; Davis CA 95616 USA
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30
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Severo J, Aoki V, Santana A, Mantovani M, Michalany N, Larsson Junior C, Larsson C. Comparative study of direct and indirect immunofluorescence for diagnosis of canine pemphigus foliaceus. ARQ BRAS MED VET ZOO 2018. [DOI: 10.1590/1678-4162-9917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Pemphigus foliaceus (PF) is the most common autoimmune skin disease in dogs. It is characterized by pustules, erosions, and crusts which occur due to the presence of autoantibodies that target intercellular adhesion. Histopathological examination is considered the gold standard pattern in the diagnosis, but may sometimes be inconclusive, especially when the characteristic findings are not identified. New diagnostic tests are continuously being developed and immunofluorescence assays, could be a valuable alternative diagnostic tool. This study aimed to evaluate the applicability of direct and indirect immunofluorescence (DIF and IIF) tests for the diagnosis of canine PF. Twenty eight dogs were divided into two groups: Group I with 14 dogs with PF and Group II (control) with 14 dogs with Superficial pyoderma (differential diagnoses of PF). All animals were submitted to skin biopsy to histopathological and DIF. Blood samples were collected to assess IIF. Comparing the DIF results against the histopathology test, there was an agreement of 75% (9/12) with a Kappa index of 0.77 (P<0.001). Considering IIF, the agreement was 100% (14/14), with a Kappa index of 1.0 (P<0.001). We conclude that DIF and IIF are highly effective and were useful and effective complementary examination tests for an improvement in the diagnosis of canine PF.
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Affiliation(s)
| | - V. Aoki
- Universidade de São Paulo, Brazil
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Severo JS, Santana AE, Aoki V, Michalany NS, Mantovani MM, Larsson CE, Larsson CE. Evaluation of C-reactive protein as an inflammatory marker of pemphigus foliaceus and superficial pyoderma in dogs. Vet Dermatol 2017; 29:128-e51. [PMID: 29168248 DOI: 10.1111/vde.12510] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/29/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND C-reactive protein (CRP) is a major acute phase protein in dogs and may be an inflammatory marker of autoimmune diseases. HYPOTHESIS/OBJECTIVES To measure pre- and post-treatment CRP levels in dogs with superficial pyoderma (SP) and pemphigus foliaceus (PF) compared to normal dogs; to evaluate possible correlation between CRP values, indirect immunofluorescence (IIF), and pemphigus foliaceus extent and severity index (PEFESI) scores. ANIMALS Fifty nine dogs divided into three groups: Group I (control, n = 31), Group II (SP, n = 14) and Group III (PF, n = 14). METHODS CRP levels were measured in Group I dogs. Skin biopsies of Groups II and III dogs were obtained for histopathological examination. In Group II dogs, CRP levels were measured at days 0, 15, 30 and 60. In Group III dogs were evaluated by PEFESI, IIF and CRP levels at days 0, 15, 30, 60 and 90. RESULTS Group III showed a higher median CRP (37.4 mg/mL) compared to the other groups (Group I, CRP 2.9 mg/mL, P < 0.0001; Group II CRP 3.8 mg/mL, P = 0.008). There was no significant difference in CRP levels between groups I and II. IIF titres and CRP levels decreased in most cases of PF with clinical improvement. Dogs with CRP >10.6 μg/mL were 5.5 times more likely to have PF than SP. There was a strong positive correlation between CRP values and PEFESI and a weak positive correlation between CRP values and IIF titres. CONCLUSION AND CLINICAL IMPORTANCE CRP levels are increased in dogs with PF and exceed levels found in most dogs with SP.
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Affiliation(s)
- Julia So Severo
- Department of Clinical Science, School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando M. Paiva, 87, São Paulo, SP, 05508-270, Brazil
| | - Aline Elisa Santana
- Department of Clinical Science, School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando M. Paiva, 87, São Paulo, SP, 05508-270, Brazil
| | - Valeria Aoki
- Department of Dermatology, School of Medicine, University of São Paulo, Av. Dr. Eneas C. Aguiar, 255, São Paulo, SP, 05403-000, Brazil
| | - Nilceo S Michalany
- Dermatopathology Laboratory of São Paulo, Av. Brig. Luis Antônio, 4315, São Paulo, SP, 01401-002, Brazil
| | - Matheus Matioli Mantovani
- Department of Clinical Science, School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando M. Paiva, 87, São Paulo, SP, 05508-270, Brazil
| | - Carlos Eduardo Larsson
- Department of Clinical Science, School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando M. Paiva, 87, São Paulo, SP, 05508-270, Brazil
| | - Carlos Eduardo Larsson
- Department of Clinical Science, School of Veterinary Medicine, University of São Paulo, Av. Prof. Orlando M. Paiva, 87, São Paulo, SP, 05508-270, Brazil
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Lambacher B, Schoiswohl J, Brunthaler R, Wittek T, Krametter-Frötscher R. Successful treatment of pemphigus foliaceus in a Berrichon du Cher ram with methylprednisolone acetate. Vet Dermatol 2017; 28:499-e117. [PMID: 28378419 DOI: 10.1111/vde.12442] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/03/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Pemphigus foliaceus is a severe, autoimmune blistering skin disease, which is described in humans and some animal species. In small ruminants pemphigus foliaceus has rarely been described and, to the best of the authors' knowledge, little information is available about successful treatment in sheep. AIM This case report describes a Berrichon du Cher ram with the presumed diagnosis of pemphigus foliaceus. METHODS The ram was treated with methylprednisolone acetate 40 mg at a dosage of 2.5 mg/kg in one subcuticular injection at four week intervals over a one year period, with regular observation of clinical parameters. Four months after treatment was initiated the haematological parameters showed lymphopenia and leukopenia; some enzyme activities were substantially increased. RESULTS The ram's dermatological condition improved to the point of complete healing of the affected skin. The ram was discharged in good condition. No adverse effects, except an elevation of some enzymes associated with liver function, were observed. At postmortem examination moderate fatty liver syndrome was the only abnormality found. CONCLUSIONS AND CLINICAL IMPORTANCE This case report demonstrated that long term therapy with methylprednisolone acetate in a sheep with pemphigus foliaceus did not have a negative effect on clinical parameters. Nevertheless, due to the extended statutory withdrawal period resulting from the regular administration of glucocorticoids, such a therapeutic option must be critically assessed in food producing animals.
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Affiliation(s)
- Bianca Lambacher
- University Clinic for Ruminants of the University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Julia Schoiswohl
- University Clinic for Ruminants of the University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Rene Brunthaler
- Institute of Pathology and Forensic Veterinary Medicine of the University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Thomas Wittek
- University Clinic for Ruminants of the University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
| | - Reinhild Krametter-Frötscher
- University Clinic for Ruminants of the University of Veterinary Medicine Vienna, Veterinärplatz 1, 1210, Vienna, Austria
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Guidetti G, Di Cerbo A, Giovazzino A, Rubino V, Palatucci AT, Centenaro S, Fraccaroli E, Cortese L, Bonomo MG, Ruggiero G, Canello S, Terrazzano G. In Vitro Effects of Some Botanicals with Anti-Inflammatory and Antitoxic Activity. J Immunol Res 2016; 2016:5457010. [PMID: 27597982 PMCID: PMC5002466 DOI: 10.1155/2016/5457010] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 07/19/2016] [Accepted: 07/21/2016] [Indexed: 12/15/2022] Open
Abstract
Several extrinsic factors, like drugs and chemicals, can foster autoimmunity. Tetracyclines, in particular oxytetracycline (OTC), appear to correlate with the emergence of immune-mediated diseases. Accumulation of OTC, the elective drug for gastrointestinal and respiratory infectious disease treatment in broiler chickens, was reported in chicken edible tissues and could represent a potential risk for pets and humans that could assume this antibiotic as residue in meat or in meat-derived byproducts. We investigated the in vitro anti-inflammatory properties of a pool of thirteen botanicals as a part of a nutraceutical diet, with proven immunomodulatory activity. In addition, we evaluated the effect of such botanicals in contrasting the in vitro proinflammatory toxicity of OTC. Our results showed a significant reduction in interferon- (INF-) γ production by human and canine lymphocytes in presence of botanicals ((⁎) p < 0.05). Increased INF-γ production, dependent on 24-hour OTC-incubation of T lymphocytes, was significantly reduced by the coincubation with Haematococcus pluvialis, with Glycine max, and with the mix of all botanicals ((⁎) p < 0.05). In conclusion, the use of these botanicals was shown to be able to contrast OTC-toxicity and could represent a new approach for the development of functional foods useful to enhance the standard pharmacological treatment in infections as well as in preventing or reducing the emergence of inflammatory diseases.
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Affiliation(s)
- Gianandrea Guidetti
- Division of Research and Development, SANYpet SpA, 35023 Bagnoli di Sopra, Italy
| | - Alessandro Di Cerbo
- School of Specialization in Clinical Biochemistry, “G. d'Annunzio” University, 66100 Chieti, Italy
| | - Angela Giovazzino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Valentina Rubino
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | | | - Sara Centenaro
- Division of Research and Development, SANYpet SpA, 35023 Bagnoli di Sopra, Italy
| | - Elena Fraccaroli
- Division of Research and Development, SANYpet SpA, 35023 Bagnoli di Sopra, Italy
| | - Laura Cortese
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, 80100 Naples, Italy
| | | | - Giuseppina Ruggiero
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
| | - Sergio Canello
- Division of Research and Development, SANYpet SpA, 35023 Bagnoli di Sopra, Italy
| | - Giuseppe Terrazzano
- Department of Translational Medical Sciences, University of Naples Federico II, 80131 Naples, Italy
- Department of Science, University of Basilicata, 85100 Potenza, Italy
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Heimann M, Beco L, Petein M, Nishifuji K, Amagai M, Olivry T, Olivry DT. Canine Hyperplastic Intraepidermal Pustular and Suprabasal Acantholytic Dermatosis with Features of Human Pemphigus Vegetans. Vet Pathol 2016; 44:550-5. [PMID: 17606523 DOI: 10.1354/vp.44-4-550] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Pemphigus vegetans is a rare autoimmune blistering acantholytic dermatosis of humans that combines unusually hyperplastic and verrucous pustular skin lesions and mucosal erosions. We report herein the clinical, histopathologic, and immunologic findings in a dog whose lesions resembled, but were not identical to, those of human pemphigus vegetans. A 4-year-old male Greater Swiss Mountain Dog presented with multifocal cutaneous verrucous and crusted papules and pustules, as well as skin and mucosal erosions and ulcers. Microscopic lesions consisted of exophytic papillated epidermal hyperplasia, superficial and deep intraepidermal acantholytic neutrophilic and eosinophilic pustules, and suprabasal epidermal clefts leaving rounded basal keratinocytes at the bottom of the vesicles. Direct and indirect immunofluorescence revealed antikeratinocyte IgG autoantibodies. Immunoprecipitation immunoblotting and immunoabsorption experiments with recombinant canine desmogleins confirmed that autoantibodies recognized desmoglein-1. In this dog, clinical and histopathologic features resembled those of human pemphigus vegetans, while circulating autoantibodies against canine desmoglein-1 were solely identified. This antigen target is different from that of the human disease in which antidesmoglein-3 autoantibodies are detected most commonly.
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Affiliation(s)
- M Heimann
- Institut de Pathologie et Genetique, Gosselies, Belgium
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Colombo S, Abramo F, Borio S, Albanese F, Noli C, Dedola C, Leone F. Pustular dermatitis in dogs affected by leishmaniosis: 22 cases. Vet Dermatol 2015; 27:9-e4. [DOI: 10.1111/vde.12274] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2015] [Indexed: 12/24/2022]
Affiliation(s)
- Silvia Colombo
- Servizi Dermatologici Veterinari; via Felice Musazzi 24 I-20025 Legnano (MI) Italy
| | - Francesca Abramo
- Department of Veterinary Sciences; University of Pisa; Viale delle Piagge 2 I-56124 Pisa Italy
| | - Stefano Borio
- Servizi Dermatologici Veterinari; via Italia 12 I-10099 San Mauro Torinese (TO) Italy
| | | | - Chiara Noli
- Servizi Dermatologici Veterinari; Strada Bedale della Ressia 2 I-12016 Peveragno (CN) Italy
| | - Carla Dedola
- Studio Dermatologico Veterinario; Via Barracca Manna 22 09134 Cagliari Italy
| | - Federico Leone
- Clinica Veterinaria Adriatica; Strada Statale Adriatica Nord 50 I-60019 Senigallia (AN) Italy
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Di Cerbo A, Palatucci AT, Rubino V, Centenaro S, Giovazzino A, Fraccaroli E, Cortese L, Ruggiero G, Guidetti G, Canello S, Terrazzano G. Toxicological Implications and Inflammatory Response in Human Lymphocytes Challenged with Oxytetracycline. J Biochem Mol Toxicol 2015; 30:170-7. [PMID: 26537863 PMCID: PMC5063161 DOI: 10.1002/jbt.21775] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 10/06/2015] [Indexed: 12/13/2022]
Abstract
Antibiotics are widely used in zoo technical and veterinary practices as feed supplementation to ensure wellness of farmed animals and livestock. Several evidences have been suggesting both the toxic role for tetracyclines, particularly for oxytetracycline (OTC). This potential toxicity appears of great relevance for human nutrition and for domestic animals. This study aimed to extend the evaluation of such toxicity. The biologic impact of the drug was assessed by evaluating the proinflammatory effect of OTC and their bone residues on cytokine secretion by in vitro human peripheral blood lymphocytes. Our results showed that both OTC and OTC‐bone residues significantly induced the T lymphocyte and non‐T cell secretion of interferon (IFN)‐γ, as cytokine involved in inflammatory responses in humans as well as in animals. These results may suggest a possible implication for new potential human and animal health risks depending on the entry of tetracyclines in the food‐processing chain.
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Affiliation(s)
- A Di Cerbo
- School of Specialization in Clinical Biochemistry, "G. d'Annunzio" University, Chieti, Italy
| | - A T Palatucci
- PhD School of Science, University of Basilicata, 85100, Potenza, Italy
| | - V Rubino
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Research and Development Laboratory, GRAF SpA, Nonantola, (MO), Italy
| | - S Centenaro
- Division of Research and Development, Sanypet SpA, 35023, Bagnoli di Sopra, (PD), Italy
| | - A Giovazzino
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy.,Research and Development Laboratory, GRAF SpA, Nonantola, (MO), Italy
| | - E Fraccaroli
- Division of Research and Development, Sanypet SpA, 35023, Bagnoli di Sopra, (PD), Italy
| | - L Cortese
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, Naples, Italy
| | - G Ruggiero
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy
| | - G Guidetti
- Division of Research and Development, Sanypet SpA, 35023, Bagnoli di Sopra, (PD), Italy
| | - S Canello
- Division of Research and Development, Sanypet SpA, 35023, Bagnoli di Sopra, (PD), Italy
| | - G Terrazzano
- Department of Translational Medical Sciences, University of Naples Federico II, Naples, Italy. , .,Department of Science, University of Basilicata, 85100, Potenza, Italy. ,
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Bizikova P, Olivry T. Oral glucocorticoid pulse therapy for induction of treatment of canine pemphigus foliaceus - a comparative study. Vet Dermatol 2015; 26:354-8, e76-7. [DOI: 10.1111/vde.12241] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/11/2015] [Indexed: 12/01/2022]
Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences; College of Veterinary Medicine; NC State University; 1060 William Moore Drive Raleigh NC 27607 USA
- Center for Comparative Medicine and Translational Research; NC State University; Raleigh NC 27606 USA
| | - Thierry Olivry
- Department of Clinical Sciences; College of Veterinary Medicine; NC State University; 1060 William Moore Drive Raleigh NC 27607 USA
- Center for Comparative Medicine and Translational Research; NC State University; Raleigh NC 27606 USA
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Bizikova P, Moriello KA, Linder KE, Sauber L. Dinotefuran/pyriproxyfen/permethrin pemphigus-like drug reaction in three dogs. Vet Dermatol 2015; 26:206-8, e45-6. [PMID: 25758668 DOI: 10.1111/vde.12202] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2014] [Indexed: 11/30/2022]
Abstract
BACKGROUND Pemphigus foliaceus (PF) can occur spontaneously or as a reaction pattern associated with cutaneous adverse drug reactions. HYPOTHESIS/OBJECTIVES To provide clinical, histological and immunological assessments of three dogs that developed cutaneous adverse drug reactions following application of a topical flea and tick control product, which contained dinotefuran, pyriproxyfen and permethrin. ANIMALS Three client-owned dogs. RESULTS The dogs exhibited rapid onset of papules, pustules and crusts at the site of application of the flea control product. In two dogs, the lesions became generalized, while the third exhibited a localized phenotype. Both dogs with generalized lesions required immunosuppressive treatment; one achieved remission after 1 year of treatment and one was euthanized due to adverse effects of glucocorticoids. The dog with a localized phenotype was treated with topical glucocorticoids exclusively and achieved remission after 10 months. Histology revealed subcorneal pustular dermatitis, with acantholysis of keratinocytes and focal to multifocal full-thickness epidermal necrosis. These features are similar to those previously reported for pesticide-triggered and spontaneous PF. Tissue-bound IgG was detected in two of three dogs, and autoantibodies targeting canine desmocollin-1 were identified in the serum of the one dog from which a sample was available. CONCLUSIONS AND CLINICAL IMPORTANCE Cutaneous adverse drug reaction caused by a flea control product containing dinotefuran, pyriproxyfen and permethrin closely resembled those reported for other pesticide-associated PF-like cutaneous adverse drug reactions. Although it appears to be a rare entity, clinicians and pathologists should be aware of the potential for flea and tick control products to trigger PF-like reactions.
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Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA.,Center for Comparative Medicine and Translational Research, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Karen A Moriello
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive West, Madison, WI, 53706, USA
| | - Keith E Linder
- Department of Population Health and Pathobiology, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
| | - Leslie Sauber
- Tulsa Veterinary Dermatology, Inc., 7220 East 41st Street, Tulsa, OK, 74145, USA
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Kawarai S, Hisasue M, Matsuura S, Ito T, Inoue Y, Neo S, Fujii Y, Madarame H, Shirota K, Tsuchiya R. Canine pemphigus foliaceus with concurrent immune-mediated thrombocytopenia. J Am Anim Hosp Assoc 2014; 51:56-63. [PMID: 25415212 DOI: 10.5326/jaaha-ms-6044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
A 3 yr old wirehaired fox terrier was presented to his primary care veterinarian with fever, thrombocytopenia, and generalized crusting dermatitis. The skin lesion had progressed for at least 18 days, and thrombocytopenia had developed 3 days before presentation. Histopathology and direct immunofluorescence studies of the skin were consistent with pemphigus foliaceus (PF). Immunofluorescence revealed immunoglobulin G deposition around the keratinocytes in the stratum spinosum. A diagnosis of immune-mediated thrombocytopenia (IMT) was confirmed by the presence of platelet surface-associated immunoglobulin using flow cytometry. Systemic immunosuppressive therapy with cyclosporine and azathioprine was effective, and the dog survived for >2 years from the initial presentation. IMT is rarely associated with PF. This appears to be the first detailed report of a definitive diagnosis of concurrent PF and IMT in a dog. The authors' findings indicate that canine PF could be complicated by hematologic immune-mediated diseases such as IMT.
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Affiliation(s)
- Shinpei Kawarai
- From Laboratory of Small Animal Clinics, Veterinary Teaching Hospital (S.K., T.I., H.M.) and Laboratory of Veterinary Internal Medicine II (M.H., Y.I., S.N., R.T.), Laboratory of Veterinary Surgery I (Y.F.), and Laboratory of Veterinary Pathology (K.S.), Department of Veterinary Medicine, Azabu University, Fuchinobe, Chuo-ku, Sagamihara, Kanagawa, Japan; and Center for Advanced Biomedical Research, Boston University School of Medicine, Boston, MA (S.M.)
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Bizikova P, Linder KE, Olivry T. Fipronil-amitraz-S-methoprene-triggered pemphigus foliaceus in 21 dogs: clinical, histological and immunological characteristics. Vet Dermatol 2014; 25:103-11, e29-30. [PMID: 24666660 DOI: 10.1111/vde.12117] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND A recently launched topical ectoparasiticide containing fipronil, amitraz and S-methoprene has been associated with the development of an acantholytic pustular dermatitis similar to that of Promeris-triggered pemphigus foliaceus (PF). HYPOTHESIS/OBJECTIVES Our objectives were to describe the clinical, histological and immunological features of this PF-like cutaneous adverse drug reaction. ANIMALS Twenty-one dogs with a probable or definitive diagnosis of PF-like cutaneous adverse drug reaction were identified between May 2012 and February 2013. MATERIAL AND METHODS Histology, direct and indirect immunofluorescence were employed to address the study objectives. RESULTS Most dogs were middle-aged or older (median, 9 years) and of large size (median, 23 kg). In six dogs (29%), the PF-like lesions remained confined to the site of application, while 15 dogs (71%) exhibited lesions at distant sites. One or two applications of the ectoparasiticide were sufficient to trigger PF-like lesions in seven (33%) and six (29%) dogs, respectively. Systemic signs were reported in nine dogs (43%), all with lesions extending to sites distant from application areas. Tissue-bound antikeratinocyte IgG was detected in the lesional epidermis of eight of 19 (42%) cases by direct immunofluorescence, while serum antikeratinocyte IgG was detected in 10 of 14 (71%) cases by indirect immunofluorescence. Autoantibodies were found to target canine desmocollin-1 in 11 of 14 dogs (79%), but not canine desmoglein-1, by indirect immunofluorescence on transfected cells. These immunological findings were similar in cases with localized and distant disease. CONCLUSIONS AND CLINICAL IMPORTANCE This new topical ectoparasiticide containing fipronil, amitraz and S-methoprene is capable of triggering the development of an acantholytic pustular dermatosis that is a clinical, histological and immunological close match for Promeris-triggered PF and naturally occurring autoimmune PF in dogs.
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Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA; Center for Comparative Medicine and Translational Research, North Carolina State University, 1060 William Moore Drive, Raleigh, NC, 27607, USA
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Bizikova P, Olivry T, Mamo LB, Dunston SM. Serum autoantibody profiles of IgA, IgE and IgM in canine pemphigus foliaceus. Vet Dermatol 2014; 25:471-e75. [DOI: 10.1111/vde.12143] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/04/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Petra Bizikova
- Department of Clinical Sciences; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
- Center for Comparative Medicine and Translational Research; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
| | - Thierry Olivry
- Department of Clinical Sciences; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
- Center for Comparative Medicine and Translational Research; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
| | - Lisa B. Mamo
- Department of Clinical Sciences; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
| | - Stanley M. Dunston
- Department of Clinical Sciences; College of Veterinary Medicine; North Carolina State University; 1060 William Moore Drive Raleigh NC 27607 USA
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Simpson DL, Burton GG. Use of prednisolone as monotherapy in the treatment of feline pemphigus foliaceus: a retrospective study of 37 cats. Vet Dermatol 2013; 24:598-601, e143-4. [DOI: 10.1111/vde.12081] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2013] [Indexed: 11/29/2022]
Affiliation(s)
- Deborah L. Simpson
- Animal Dermatology Solutions; 26 Fowler Street Box Hill South Melbourne Victoria 3128 Australia
| | - Gregory G. Burton
- Animal Skin, Ear and Allergy Service; 70 Blackburn Road Glen Waverley Melbourne Victoria 3150 Australia
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Bizikova P, Dean GA, Hashimoto T, Olivry T. Cloning and establishment of canine desmocollin-1 as a major autoantigen in canine pemphigus foliaceus. Vet Immunol Immunopathol 2012; 149:197-207. [DOI: 10.1016/j.vetimm.2012.06.025] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/19/2012] [Accepted: 06/30/2012] [Indexed: 11/29/2022]
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Irwin KE, Beale KM, Fadok VA. Use of modified ciclosporin in the management of feline pemphigus foliaceus: a retrospective analysis. Vet Dermatol 2012; 23:403-e76. [DOI: 10.1111/j.1365-3164.2012.01069.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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