Component‐resolved diagnosis of house‐dust mite allergy with purified natural and recombinant mite allergens

Pittner, Gisela; Vrtala, Susanne; Thomas, Wayne R.; Weghofer, Margit; Kundi, Michael; Horak, Friedrich; Kraft, Dietrich; Valenta, Rudolf

doi:10.1111/j.1365-2222.2004.1930.x

Cited by 156 publications

(139 citation statements)

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“…However, HDM extracts are variable in content of allergens,12, 13 and stability is limited 14. Given the fact that sensitization to Der p1 and 2 identifies more than 95% of HDM‐allergic individuals9, 13 and their causal role in early sensitization,10 SIT with purified Der p1 and 2 might be a more attractive therapeutic approach compared to the use of HDM extracts.…”

Section: Introductionmentioning

confidence: 99%

Subcutaneous immunotherapy with purified Der p1 and 2 suppresses type 2 immunity in a murine asthma model

Hesse

Ieperen

Habraken

et al. 2018

Allergy

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BackgroundAllergen‐specific immunotherapy can induce long‐term suppression of allergic symptoms, reduce medication use, and prevent exacerbations of allergic rhinitis and asthma. Current treatment is based on crude allergen extracts, which contain immunostimulatory components such as β‐glucans, chitins, and endotoxin. Use of purified or recombinant allergens might therefore increase efficacy of treatment.AimsHere, we test application of purified natural group 1 and 2 allergens from Dermatophagoides pteronyssinus (Der p) for subcutaneous immunotherapy (SCIT) treatment in a house dust mite (HDM)‐driven mouse model of allergic asthma.Materials and methods HDM‐sensitized mice received SCIT with crude HDM extract, a mixture of purified Der p1 and 2 (DerP1/2), or placebo. Upon challenges, we measured specific immunoglobulin responses, allergen‐induced ear swelling response (ESR), airway hyperresponsiveness (AHR), and inflammation in bronchoalveolar lavage fluid (BAL) and lung tissue.Results ESR measurement shows suppression of early allergic response in HDM‐SCIT– and DerP1/2‐SCIT–treated mice. Both HDM‐SCIT and DerP1/2‐SCIT are able to suppress AHR and eosinophilic inflammation. In contrast, only DerP1/2‐SCIT is able to significantly suppress type 2 cytokines in lung tissue and BAL fluid. Moreover, DerP1/2‐SCIT treatment is uniquely able suppress CCL20 and showed a trend toward suppression of IL‐33, CCL17 and eotaxin levels in lung tissue.DiscussionTaken together, these data show that purified DerP1/2‐SCIT is able to not only suppress AHR and inflammation, but also has superior activity toward suppression of Th2 cells and HDM‐induced activation of lung structural cells including airway epithelium.ConclusionsWe postulate that treatment with purified natural major allergens derived from HDM will likely increase clinical efficacy of SCIT.

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Section: Introductionmentioning

confidence: 99%

Subcutaneous immunotherapy with purified Der p1 and 2 suppresses type 2 immunity in a murine asthma model

Hesse

Ieperen

Habraken

et al. 2018

Allergy

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“…With the increasing availability of new component-resolved forms of allergy diagnosis, correct diagnosis of the disease-causing allergens becomes easier and should facilitate the accurate prescription of immunotherapy [60][61][62][63]. Diagnostic tests based on the major allergens of the most common allergen sources are now available, but treatment is still based on allergen extracts.…”

Section: Factors Limiting the Broad Application Of Allergen-specific mentioning

confidence: 99%

Developments in allergen‐specific immunotherapy: from allergen extracts to allergy vaccines bypassing allergen‐specific immunoglobulin E and T cell reactivity

Focke

Swoboda

Marth

et al. 2010

Clin Experimental Allergy

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101

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SummaryAllergen-specific immunotherapy (SIT) is the only specific and disease-modifying approach for the treatment of allergy but several disadvantages have limited its broad applicability. We argue that the majority of the possible disadvantages of SIT such as unwanted effects, poor efficacy and specificity as well as inconvenient application are related to the poor quality of natural allergen extracts, which are the active ingredients of all currently available allergy vaccines. Because of the progress made in the field of molecular allergen characterization, new allergy vaccines based on recombinant allergens, recombinant hypoallergenic allergen derivatives and allergen-derived T cell peptides have entered clinical testing and hold promise to reduce the side-effects and to increase the specificity as well as the efficacy of SIT. Here, we present a refined immunotherapy concept, which is based on the use of peptides derived from allergen surfaces that exhibit reduced, allergen-specific IgE as well as T cell reactivity. These peptides when fused to non-allergenic carriers give rise to allergen-specific protective IgG responses with T cell help from a non-allergenic carrier molecule. We summarize the experimental data demonstrating that such peptide vaccines can bypass allergen-specific IgE as well as T cell activation and may be administered at high doses without IgE-and T cell-mediated side-effects. Should these peptide vaccines prove efficacious and safe in clinical trials, it may become possible to develop convenient, safe and broadly applicable forms of SIT as true alternatives to symptomatic, drug-based allergy treatment.

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“…House dust mites are more common in dust of mattresses and bedroom floors than in dust from the other areas of the house (Maunsell et al, 1968;Van Bronswijk, 1973). The two pyroglyphid mites are important sources of allergens that cause respiratory allergies including asthma worldwide inside homes in humid areas (Hallas, 1991;Arlian et al, 1992;Colloff et al, 1992;Solarz, 2001a, b;Sharma et al, 2011;Pittner et al, 2004). The two pyroglyphid mites are also identified as etiologic agent of sensitization and asthma-triggering in children (Lau et al, 1989;Arshad and Hide, 1992).…”

Section: Introductionmentioning

confidence: 99%

Studies on the Occurrence, Identification and Control of House Dust Mites at Rural Houses of Shebin El-Kom Locality, Egypt

Hm¹

2015

Pakistan J. of Biological Sciences

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A B S T R A C TThe present study was conducted at Elkom Elakhdar village, Shebin El-Kom, Menoufia Governorate along 2012 year seasons, to calculate and identify the species composition and the occurrence frequency of the extracted dust mites collected from three building ages at rural houses, as well as to determine the toxicity limits of different concentrations of three plant essential oils against two species of the family Pyroglyphidae the main causal of allergy to humans. The obtained results revealed that there were eleven mite species belong to five families (Pyroglyphidae, Chortoglyphidae, Glycyphagidae, Acaridae and Cheyletidae). Of the total collected mites (5276) the highest dominant percentage species was the dust mites: Dermatophagoides farinae (66.1%), followed by D. pteronyssinus (23.3%), while the percentages of the rest species: Chortoglyphus arcuatus, Lepidoglyphus destructor, Glycyphagus domesticus, Gohieria fusca, Tyrophagus putrescentiae, Caloglyphus sp, Cheyletus malaccensis, Blomia sp. and Acarus siro were ranged between 0.16-2.0%. Regarding to the effect of temperature degrees on mite population, high degrees more than 25°C at summer season, decreased the numbers of D. farinae and D. pteronyssinus. Toxicological tests of the three plant essential oils against adult stages of D. farinae and D. pteronyssinus showed that lemon grass oil gave the highest toxicity effect, in comparison with geranium and thyme oils, where mortality percentages were approximately around 100% at 800 ppm concentration on both species. The LC 50 of lemon grass were 228.992 and 293.615 ppm against the two species, respectively. From the results of the research, it could be recommend that it is preferable to apply control operation during summer season where the mite population density is the least, moreover, the botanical oil extracts effectively controlled the parasitic dust mites, D. farinae and D. pteronyssinus and can be used in the biological control programs, as well as, it can play effective role in the integrated management programs.

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Component‐resolved diagnosis of house‐dust mite allergy with purified natural and recombinant mite allergens

Cited by 156 publications

References 40 publications

Subcutaneous immunotherapy with purified Der p1 and 2 suppresses type 2 immunity in a murine asthma model

Subcutaneous immunotherapy with purified Der p1 and 2 suppresses type 2 immunity in a murine asthma model

Developments in allergen‐specific immunotherapy: from allergen extracts to allergy vaccines bypassing allergen‐specific immunoglobulin E and T cell reactivity

Studies on the Occurrence, Identification and Control of House Dust Mites at Rural Houses of Shebin El-Kom Locality, Egypt

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