1
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Özuygur Ermis SS, Borres MP, Basna R, Ekerljung L, Malmhäll C, Goksör E, Wennergren G, Rådinger M, Lötvall J, Lundbäck B, Kankaanranta H, Nwaru BI. Sensitization to molecular dog allergens in an adult population: Results from the West Sweden Asthma Study. Clin Exp Allergy 2023; 53:88-104. [PMID: 35984703 PMCID: PMC10087160 DOI: 10.1111/cea.14216] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 07/19/2022] [Accepted: 08/15/2022] [Indexed: 01/24/2023]
Abstract
BACKGROUND As the prevalence of dog allergy rises, component resolved diagnosis might improve the diagnosis, understanding of the clinical outcomes and the effectiveness of immunotherapy. Considering the paucity of data in adults, the current study characterized the patterns of sensitization to dog molecular allergens in an adult population. METHODS Data were derived from the West Sweden Asthma Study, a population-based and representative sample of adults from western Sweden. Of the 2006 subjects clinically examined, 313 participants sensitized to whole dog allergen extract were measured for specific immunoglobulin E (sIgE) levels to Can f 1, Can f 2, Can f 3, Can f 4, Can f 5 and Can f 6 using ImmunoCAP™. Polysensitization was defined as sensitization to ≥3 components. Overlapping sensitization was defined as having concomitant sensitization to at least two dog molecular allergen families (lipocalin, albumin or prostatic kallikrein). RESULTS Of 313, 218 (70%) subjects tested positive to at least one dog allergen component. Sensitization to Can f 1 (43%) was the most common, followed by Can f 5 (33%) among molecular allergens, while sensitization to lipocalins (56%) was the most common among component families. Polysensitization was found in 22% of all participants and was more common in participants with than in those without asthma. Subjects with asthma were less likely to be monosensitized to Can f 5 than those without asthma. Subjects with asthma had higher IgE levels of Can f 3, Can f 4 and Can f 6 than those without asthma. Overlapping sensitizations also differed between those with asthma and allergic rhinitis and those without. CONCLUSION Increased knowledge about the sensitization patterns of dog allergen components can aid in defining their role in asthma and rhinitis. In complex clinical cases of dog allergy, a detailed analysis of dog allergen components can provide additional information on the nature of sensitization.
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Affiliation(s)
- Saliha Selin Özuygur Ermis
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Department of Respiratory Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Magnus P Borres
- ImmunoDiagnostics, Thermo Fisher Scientific, Uppsala, Sweden.,Department of Maternal and Child Health, Uppsala University, Uppsala, Sweden
| | - Rani Basna
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Linda Ekerljung
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Carina Malmhäll
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Emma Goksör
- Department of Pediatrics, University of Gothenburg, Queen Silvia Children's Hospital, Gothenburg, Sweden
| | - Göran Wennergren
- Department of Pediatrics, University of Gothenburg, Queen Silvia Children's Hospital, Gothenburg, Sweden
| | - Madeleine Rådinger
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jan Lötvall
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Bo Lundbäck
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Hannu Kankaanranta
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Faculty of Medicine and Life Sciences, University of Tampere, Tampere, Finland.,Department of Respiratory Medicine, Seinäjoki Central Hospital, Seinäjoki, Finland
| | - Bright I Nwaru
- Krefting Research Centre, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.,Wallenberg Centre for Molecular and Translational Medicine, Institute of Medicine, University of Gothenburg, Gothenburg, Sweden
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2
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Vandamme C, Rytkönen-Nissinen M, Lönnberg T, Randell J, Harvima RJ, Kinnunen T, Virtanen T. Single-cell characterization of dog allergen-specific T cells reveals T H2 heterogeneity in allergic individuals. J Allergy Clin Immunol 2021:S0091-6749(21)01822-4. [PMID: 34863852 DOI: 10.1016/j.jaci.2021.11.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 11/21/2022]
Abstract
BACKGROUND Allergen-specific type 2 CD4+ TH2 cells are critically involved in the pathogenesis of IgE-mediated allergic diseases. However, the heterogeneity of the TH2 response has only recently been appreciated. OBJECTIVE We sought to characterize at the single-cell level the ex vivo phenotype, transcriptomic profile, and T-cell receptor (TCR) repertoire of circulating CD4+ T cells specific to the major dog allergens Can f 1, Can f 4, and Can f 5 in subjects with and without dog allergy. METHODS Dog allergen-specific memory CD4+ T cells were detected ex vivo by flow cytometry using a CD154-based enrichment assay and single-cell sorted for targeted gene expression analysis and TCR sequencing. RESULTS Dog allergen-specific T-cell responses in allergic subjects were dominantly of TH2 type. TH2 cells could be phenotypically further divided into 3 subsets, which consisted of TH2-like (CCR6-CXCR3-CRTH2-), TH2 (CCR6-CXCR3-CRTH2+CD161-), and TH2A (CCR6-CXCR3-CRTH2+CD161+CD27-) cells. All these subsets were nonexistent within the allergen-specific T-cell repertoire of healthy subjects. Single-cell transcriptomic profiling confirmed the TH2-biased signature in allergen-specific T cells from allergic subjects and revealed a TH1/TH17 signature in nonallergic subjects. TCR repertoire analyses showed that dog allergen-specific T cells were diverse and allergic subjects demonstrated less clonality compared to nonallergic donors. Finally, TCR and transcriptomic analyses revealed a close relationship between TH2-like, TH2, and TH2A cells, with the last ones representing the most terminally differentiated and highly polarized subtype. CONCLUSIONS Our study demonstrates heterogeneity within allergen-specific TH2 cells at the single-cell level. The results may be utilized for improving immune monitoring after allergen immunotherapy and for designing targeted immunomodulatory approaches.
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3
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Liccardi G, Milanese M, Bilò MB, Liccardi MV, Gargano D, Giordano A, Habetswallner F, Lo Schiavo M, Madonna F, Montera MC, Pane G, Papa A, Pedicini A, Rogliani P. Lessons from peculiar cases of anaphylaxis: why allergists should be prepared for the unexpected. Eur Ann Allergy Clin Immunol 2021; 54:99-106. [PMID: 33939345 DOI: 10.23822/eurannaci.1764-1489.198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Anaphylaxis is the most severe systemic hypersensitivity reaction, it can be caused by a number of well identified triggers such as foods, drugs, stinging insects and facilitated by predisposing clinical conditions. However, sometimes anaphylaxis shows up with uncommon or peculiar characteristics which could delay diagnosis and therapeutic treatment. In this report we aimed to describe less accounted / difficult-to-approach shapes of anaphylaxis to facilitate clinicians to suspect these severe reactions even in uncommon conditions. We choose to present data on anaphylaxis regarding simulation, mode of exposure to sensitizing agents, pregnancy, exposure to animals, intimate behaviour, psychological stress and other situations.
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Affiliation(s)
- G Liccardi
- Department of Experimental Medicine, Postgraduate School of Respiratory Medicine, Tor Vergata University of Rome, Rome, Italy
| | - M Milanese
- Division of Pulmonology, S. Corona Hospital, Pietra Ligure, Italy
| | - M B Bilò
- Department of Clinical and Molecular Sciences, Marche Polytechnic University, Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti, Ancona, Italy
| | | | - D Gargano
- Allergy Unit, High Speciality San Giuseppe Moscati Hospital, Avellino, Italy
| | - A Giordano
- Postgraduate School of Internal Medicine, University of Salerno, Salerno, Italy
| | - F Habetswallner
- Division of Neurophysiology A. Cardarelli Hospital, Naples, Italy
| | - M Lo Schiavo
- Allergy and Clinical Immunology, G. Fucito Hospital and University Hospital, Salerno, Italy
| | - F Madonna
- Allergy Unit, ASL (Sanitary District n°12), Caserta, Italy
| | - M C Montera
- Allergy and Clinical Immunology, G. Fucito Hospital and University Hospital, Salerno, Italy
| | - G Pane
- Department of Experimental Medicine, Unit of Respiratory Medicine, Tor Vergata University of Rome, Rome, Italy
| | - A Papa
- ASL (Sanitary District), Avellino, Italy
| | - A Pedicini
- Unit of Allergology, Division of Internal Medicine, Fatebenefratelli Hospital, Benevento, Italy
| | - P Rogliani
- Department of Experimental Medicine, Postgraduate School of Respiratory Medicine, Tor Vergata University of Rome, Rome, Italy.,Department of Experimental Medicine, Unit of Respiratory Medicine, Tor Vergata University of Rome, Rome, Italy
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4
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Ukleja-Sokołowska N, Lis K, Żbikowska-Gotz M, Adamczak R, Bartuzi Z. Analysis of allergen profile in patients sensitized to canine allergen and potential Can f 5 cross-reactivity with human PSA. Int J Immunopathol Pharmacol 2021; 35:20587384211023670. [PMID: 34116601 PMCID: PMC8202253 DOI: 10.1177/20587384211023670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 05/17/2021] [Indexed: 11/16/2022] Open
Abstract
Can f 5 allergy and possible cross-reactivity with human semen in which there are significant amounts of prostate-specific antigen (PSA) are particularly interesting aspects of allergy to dog. The objective of the study was to confirm cross-reactivity between human PSA and Can f 5 in a study of canine sensitised women. A total of 100 women (aged 18-73, 41 on average) with a positive history of animal fur allergy or positive skin prick tests to canine allergens were selected. Levels of Immunoglobulin E (IgE) specific to Can f 1, Can f 2, Can f 3, Can f 5 were determined. Patients with increased concentration of sIgE Can f 5 were selected for further inhibition testing using polystyrene microplate ELISA test coated with human PSA. In the studied population, allergy to Can f 5 dominated (52.3% of patients with increased concentration of canine-specific IgE were allergic to this allergenic component). In all analyzed cases, the concentration of IgE Can f 5 decreased after incubation on the ELISA plate coated with human PSA. The minimum decrease in concentration was 10.44%, the maximum was 37.73%, the average decrease was 21.6%. No statistically significant influence of the presence or absence of allergenic sIgE Can f 5 in blood serum on the occurrence of symptoms after intercourse was found. The study confirmed the moderate ability of Can f 5 to cross-react with human PSA sIgE, which may be clinically significant in some women. At the same time, symptoms of an allergy to male semen do not constitute a typical clinical presentation of allergy to Can f 5.
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Affiliation(s)
- Natalia Ukleja-Sokołowska
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Kinga Lis
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Magdalena Żbikowska-Gotz
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Rafał Adamczak
- Department of Obstetrics and Gynecology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
| | - Zbigniew Bartuzi
- Department of Allergology, Clinical Immunology and Internal Medicine, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Bydgoszcz, Poland
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5
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Schoos AMM, Chawes BL, Bloch J, Hansen B, Stokholm J, Bønnelykke K, Kristensen B, Bisgaard H. Children Monosensitized to Can f 5 Show Different Reactions to Male and Female Dog Allergen Extract Provocation: A Randomized Controlled Trial. J Allergy Clin Immunol Pract 2019; 8:1592-1597.e2. [PMID: 31863911 DOI: 10.1016/j.jaip.2019.12.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 12/06/2019] [Accepted: 12/06/2019] [Indexed: 02/01/2023]
Abstract
BACKGROUND Dog dander consists of several allergenic molecules including Can f 5, which is a protein expressed in the prostate of male dogs. OBJECTIVE To investigate whether children monosensitized to Can f 5 show different reactions to provocation tests with male versus female dog dander in a double-blind randomized clinical trial. METHODS Twenty-two children (15-18 years) with a history of dog sensitization were enrolled from the COpenhagen Prospective Studies on Asthma in Childhood2000 mother-child cohort. Skin prick test, specific IgE levels to dog dander (e5), and dog components Can f 1, 2, 3, and 5 were first assessed. We subsequently performed skin prick test and conjunctival allergen provocation test using dog dander collected separately from male and female dogs. RESULTS Seven of the 22 children were monosensitized to Can f 5. Eight were sensitized to a mix of the dog components, and 7 were no longer sensitized to dog. Of the children monosensitized to Can f 5, all had a positive skin prick test result to male dog extract and 1 of 7 was also positive to female dog extract (P = .01). Furthermore, 5 of 7 had a positive conjunctival allergen provocation test result to male dog extract and 1 of 7 also reacted to the female dog extract (P = .03). There was no difference between reactions to male and female dog extract provocation in children sensitized to a mix of the dog components. CONCLUSIONS Children monosensitized to Can f 5 show different reactions to male and female dog extract provocation using both skin prick test and conjunctival allergen provocation test, suggesting tolerance to female dogs.
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Affiliation(s)
- Ann-Marie Malby Schoos
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Bo Lund Chawes
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Joakim Bloch
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Britta Hansen
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Jakob Stokholm
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | - Klaus Bønnelykke
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark
| | | | - Hans Bisgaard
- COpenhagen Prospective Studies on Asthma in Childhood (COPSAC), Herlev and Gentofte Hospital, University of Copenhagen, Copenhagen, Denmark.
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6
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Liccardi G, Calzetta L, Salzillo A, Apicella G, Di Maro E, Rogliani P. What Could the Role of Can f 5 Allergen Be in Dog-Sensitized Patients in "Real Life"? J Investig Allergol Clin Immunol 2019; 27:397-398. [PMID: 29199970 DOI: 10.18176/jiaci.0189] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- G Liccardi
- Department of Pulmonology, Haematology and Oncology, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy.,Postgraduate School of Respiratory Medicine, Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - L Calzetta
- Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
| | - A Salzillo
- Department of Pulmonology, Haematology and Oncology, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy
| | - G Apicella
- Department of Pulmonology, Haematology and Oncology, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy
| | - E Di Maro
- Department of Pulmonology, Haematology and Oncology, Division of Pneumology and Allergology, High Speciality "A.Cardarelli" Hospital, Naples, Italy
| | - P Rogliani
- Postgraduate School of Respiratory Medicine, Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy.,Department of Experimental Medicine and Surgery, University of Rome "Tor Vergata", Rome, Italy
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7
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Villalta D, Milanese M, Da Re M, Sabatino G, Sforza M, Calzetta L, Liccardi G. Frequency of allergic sensitization to Can f 5 in North East Italy. An analysis of 1403 ISACs 112 (Component Resolved Diagnosis) collected retrospectively. Eur Ann Allergy Clin Immunol 2019; 51:186-189. [PMID: 30983305 DOI: 10.23822/eurannaci.1764-1489.89] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Recent studies have shown the increasing relevance of allergic sensitization to Can f 5, a prostatic kallicrein expressed in the prostate and detectable only in male dogs. The aim of the present study was to establish the frequency, level of sensitization and association with other dog allergens of Can f 5, as assessed by Component Resolved Diagnosis (CRD- ISAC 112, ThermoFisher Scientific, Uppsala, Sweden), in North East Italy. A total of 1403 CRD ISAC 112 were examined retrospectively. Five-hundred twenty subjects (37 %) had a positive IgE response to at least one of the available animal allergens. Among these 520 subjects, 268 (51.5 %) showed at least one sensitization to dog allergens. Among dog-sensitized individuals, 183 (69.02%) showed IgE against Can f 5, and 106 (57.92%) were sensitized exclusively against Can f 5. The average Can f 5 specific IgE was 8.810 ISU-E, with 77.6 % of individuals showing medium or high values of specific IgE according to manufacturer's specifications. In conclusions, our data confirmed that there is a high number of sensitized patients to Can f 5, which have a high degree of allergic sensitization. These results should be taken into account by allergists managing dog allergic patients. In fact, clinical consequences of this sensitization regard respiratory allergy (burden of rhinitis/asthma), systemic reactions (anaphylaxis during sexual intercourse from cross-reaction with human prostatic antigen), allergen immunotherapy-AIT (likely ineffective in patients with exclusive sensitization), and preventive measures (possibility to own a female dog and a likely reduction of allergen passive transport). Further studies are needed to better explore these aspects in "real life".
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Affiliation(s)
- D Villalta
- Immunology and Allergy Unit, Santa Maria degli Angeli Hospital, Pordenone, Italy
| | - M Milanese
- Division of Pulmonology, S.Corona Hospital, Pietra Ligure, Italy
| | - M Da Re
- Immunology and Allergy Unit, Santa Maria degli Angeli Hospital, Pordenone, Italy
| | | | - M Sforza
- Department of Experimental Medicine, Unit of Respiratory Medicine. University of Rome "Tor Vergata", Rome, Italy
| | - L Calzetta
- Department of Experimental Medicine, Unit of Respiratory Medicine. University of Rome "Tor Vergata", Rome, Italy.,Postgraduate School of Respiratory Medicine. Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy
| | - G Liccardi
- Postgraduate School of Respiratory Medicine. Department of Experimental Medicine, University of Rome "Tor Vergata", Rome, Italy.,Department of Pulmonology, Haematology and Oncology. Division of Pulmonology, Unit of Allergology. High Speciality "A. Cardarelli" Hospital, Naples, Italy
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8
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Liccardi G, Calzetta L, Milanese M, Lombardi C, Savi E, Passalacqua G, Rogliani P. Critical aspects in dog allergen immunotherapy (DAI). May Component Resolved Diagnosis (CRD) play a role in predicting the efficacy? Hum Vaccin Immunother 2018; 14:1438-1441. [PMID: 29381449 PMCID: PMC6037462 DOI: 10.1080/21645515.2018.1434383] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
We hypothesize that a pivotal condition determining the efficacy of dog allergen immunotherapy (DAI) might be the mono-sensitization to dog lipocalins (Can f 1-2) in individuals not directly or indirectly exposed to other furry animals. In fact, the concomitant sensitization to lipocalins and/or albumins, especially in those patients directly exposed to furry animals, may potentially stimulate patient's airways by inducing persistent inflammation and, thus, clinical symptoms. In these conditions, it is likely that DAI alone could be inadequate to reduce airway inflammation mediated by inhalation of dog allergens in patients with simultaneous exposure to other furry animals. Can f 5 has been found as exclusive allergen in about one third of dog-sensitized individuals. Considering the presence of different allergenic materials in extract of mammalian origin, it is evident that a standard DAI is not likely to be effective in Can f 5 prevalent or mono-sensitized individuals. Moreover, we would underline the need of collecting detailed information on the possible exposures to furry animals (other than the common pets), an information that usually is neglected in clinical practice. Furthermore, a detailed clinical history exploring the real significance of dog sensitization (mono or poly-sensitization, induction of clinical symptoms after exposure etc.) should be performed before prescribing DAI. In some patients, with potential high susceptibility to animal allergens, the use of CRD is essential to verify the presence of concomitant allergic sensitization to lipocalins and/or albumins belonging to other furry animals. The availability of CRD introduced the possibility of a better targeted prescription of DAI because it might be useful for point out the primary allergens and for the exclusion of cross-reactive ones.
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Affiliation(s)
- Gennaro Liccardi
- a Department of Pulmonology , Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality "A.Cardarelli" Hospital , Naples , Italy
- b Postgraduate School of Respiratory Medicine, Department of Experimental Medicine and Surgery , University of Rome "Tor Vergata" , Rome , Italy
| | - Luigino Calzetta
- b Postgraduate School of Respiratory Medicine, Department of Experimental Medicine and Surgery , University of Rome "Tor Vergata" , Rome , Italy
- c Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Rome , Italy
| | - Manlio Milanese
- d Division of Pneumology, S.Corona Hospital , Pietra Ligure (Savona) , Italy
| | - Carlo Lombardi
- e Departmental Unit of Allergy , Clinical Immunology and Respiratory Diseases, Fondazione Poliambulanza , Brescia , Italy
| | - Eleonora Savi
- f Departmental Unit of Allergology , Guglielmo da Saliceto Hospital , Piacenza , Italy
| | - Giovanni Passalacqua
- g Allergy and Respiratory Diseases, Policlinico San Martino, University of Genoa , Genoa , Italy
| | - Paola Rogliani
- b Postgraduate School of Respiratory Medicine, Department of Experimental Medicine and Surgery , University of Rome "Tor Vergata" , Rome , Italy
- c Department of Experimental Medicine and Surgery , University of Rome Tor Vergata , Rome , Italy
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9
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Käck U, Asarnoj A, Grönlund H, Borres MP, van Hage M, Lilja G, Konradsen JR. Molecular allergy diagnostics refine characterization of children sensitized to dog dander. J Allergy Clin Immunol 2018; 142:1113-1120.e9. [PMID: 29852259 DOI: 10.1016/j.jaci.2018.05.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 04/23/2018] [Accepted: 05/18/2018] [Indexed: 01/09/2023]
Abstract
BACKGROUND Sensitization to dog dander is an important risk factor for rhinoconjunctivitis and asthma but is not sufficient for diagnosing dog allergy. Molecular allergy diagnostics offer new opportunities for refined characterization. OBJECTIVES We sought to study the association between sensitization to all presently known dog allergen components and clinical symptoms of dog allergy in children evaluated by using nasal provocation tests (NPTs). METHODS Sixty children (age, 10-18 years) sensitized to dog dander extract underwent NPTs with dog dander extract. Measurement of IgE levels to dog dander and to Can f 1, Can f 2, Can f 3, and Can f 5 was performed with ImmunoCAP, and measurement of IgE levels to Can f 4 and Can f 6 was performed with streptavidin ImmunoCAP. An IgE level of 0.1 kUA/L or greater was considered positive. RESULTS There was an association between sensitization to an increasing number of dog allergen components and a positive nasal challenge result (P = .01). Sensitization to lipocalins (odds ratio [OR], 6.0; 95% CI, 1.04-34.5), in particular Can f 4 (OR, 6.80; 95% CI 1.84-25.2) and Can f 6 (OR, 5.69; 95% CI, 1.59-20.8), was associated with a positive NPT result. Monosensitization to Can f 5 was related to a negative NPT result (OR, 5.78; 95% CI, 1.01-33.0). CONCLUSION Sensitization to an increasing number of dog allergen components and to lipocalins is associated with dog allergy. Monosensitization to Can f 5 should not be regarded primarily as a marker for dog allergy.
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Affiliation(s)
- Ulrika Käck
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden.
| | - Anna Asarnoj
- Department of Medicine Solna Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
| | - Hans Grönlund
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Magnus P Borres
- Thermo Fisher Scientific, Uppsala, Sweden; Department of Women's & Children's Health, Uppsala University, Uppsala, Sweden
| | - Marianne van Hage
- Department of Medicine Solna Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden
| | - Gunnar Lilja
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
| | - Jon R Konradsen
- Department of Medicine Solna Immunology and Allergy Unit, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden; Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden
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10
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Liccardi G, Calzetta L, Salzillo A, Apicella G, Piccolo A, Di Maro E, Rogliani P. Dog allergy: can a prevalent or exclusive sensitization to Can f 5 be considered a lucky or negative event in real life? Eur Ann Allergy Clin Immunol 2017; 50:283-285. [PMID: 29384112 DOI: 10.23822/eurannaci.1764-1489.41] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Recent studies have shown the increasing relevance of allergic sensitization to Can f 5 (a prostatic kallikrein), which is an androgen-regulated protein expressed in the prostate and detectable only in male dogs. Can f 5 can be a prevalent or exclusive sensitizing agent in a considerable percentage of dog-allergic patients. Its specific allergenic characteristics are able to induce possible negative as well as positive clinical effects in individuals sensitized to dogs. In the present article we pointed out the possible pros or cons of sensitization to this allergen in real life. Further studies should be carried out to correctly assess some peculiar characteristics of Can f 5, in order to support the most of positive aspects and remedy at best the negative effects.
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Affiliation(s)
- G Liccardi
- Department of Pulmonology, Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality A. Cardarelli Hospital, Naples, Italy. Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy
| | - L Calzetta
- Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy. Department of Experimental Medicine, Unit of Respiratory Medicine, University of Rome Tor Vergata, Rome, Italy
| | - A Salzillo
- Department of Pulmonology, Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality A. Cardarelli Hospital, Naples, Italy
| | - G Apicella
- Department of Pulmonology, Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality A. Cardarelli Hospital, Naples, Italy
| | - A Piccolo
- Department of Pulmonology, Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality A. Cardarelli Hospital, Naples, Italy
| | - E Di Maro
- Department of Pulmonology, Haematology and Oncology, Division of Pulmonology and Allergology, High Speciality A. Cardarelli Hospital, Naples, Italy
| | - P Rogliani
- Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome Tor Vergata, Rome, Italy. Department of Experimental Medicine, Unit of Respiratory Medicine, University of Rome Tor Vergata, Rome, Italy
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Asarnoj A, Hamsten C, Wadén K, Lupinek C, Andersson N, Kull I, Curin M, Anto J, Bousquet J, Valenta R, Wickman M, van Hage M. Sensitization to cat and dog allergen molecules in childhood and prediction of symptoms of cat and dog allergy in adolescence: A BAMSE/MeDALL study. J Allergy Clin Immunol 2015; 137:813-21.e7. [PMID: 26686472 DOI: 10.1016/j.jaci.2015.09.052] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 08/31/2015] [Accepted: 09/15/2015] [Indexed: 12/17/2022]
Abstract
BACKGROUND Sensitization to individual cat and dog allergen molecules can contribute differently to development of allergy to these animals. OBJECTIVE We sought to investigate the association between sensitization patterns to cat and dog allergen molecules during childhood and symptoms to these furry animals up to age 16 years. METHODS Data from 779 randomly collected children from the Barn/Children Allergy/Asthma Milieu Stockholm Epidemiologic birth cohort at 4, 8, and 16 years were used. IgE levels to cat and dog were determined by using ImmunoCAP, and levels to allergen molecules were determined by using an allergen chip based on ISAC technology (Mechanisms for the Development of Allergy chip). Allergy was defined as reported rhinitis, conjunctivitis, or asthma at exposure to cat or dog. RESULTS Cross-sectionally, IgE to Fel d 1 and cat extract had similar positive predictive values for cat allergy. IgE to Can f 1 showed a higher positive predictive value for dog allergy than dog extract IgE. Sensitizations to Fel d 1 and Can f 1 in childhood were significantly associated with symptoms to cat or dog at age 16 years. Polysensitization to 3 or more allergen molecules from cat or dog was a better longitudinal predictor of cat or dog symptoms than results of IgE tests with cat or dog allergen extract, respectively. Cross-sectionally, cat/dog-polysensitized children had higher IgE levels and more frequent symptoms to cat and dog than monosensitized children. CONCLUSIONS Sensitization to Fel d 1 and Can f 1 in childhood and polysensitization to either cat or dog allergen molecules predict cat and dog allergy cross-sectionally and longitudinally significantly better than IgE to cat or dog extract.
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Affiliation(s)
- Anna Asarnoj
- Clinical Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Astrid Lindgren Children's Hospital, Stockholm, Sweden.
| | - Carl Hamsten
- Clinical Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden; Center for Inflammatory Diseases, Karolinska Institutet, Stockholm, Sweden
| | - Konrad Wadén
- Clinical Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - Christian Lupinek
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Niklas Andersson
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Inger Kull
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Sachs' Children's Hospital, Södersjukhuset, Stockholm, Sweden; Department of Clinical Science and Education, Stockholm South General Hospital, Karolinska Institutet, Stockholm, Sweden
| | - Mirela Curin
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Josep Anto
- Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain; IMIM (Hospital del Mar Research Institute), Barcelona, Spain; Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain; CIBER Epidemiología y Salud Pública, Barcelona, Spain
| | - Jean Bousquet
- University Hospital of Montpellier, Hôpital Arnaud de Villeneuve, Montpellier, Villejuif, France
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Magnus Wickman
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Sachs' Children's Hospital, Södersjukhuset, Stockholm, Sweden; Centre for Allergy Research, Karolinska Institutet, Stockholm, Sweden
| | - Marianne van Hage
- Clinical Immunology and Allergy Unit, Department of Medicine Solna, Karolinska Institutet and University Hospital, Stockholm, Sweden
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