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  1. Article ; Online: Component-Resolved Diagnosis Based on a Recombinant Variant of Mus m 1 Lipocalin Allergen.

    Ferrari, Elena / Breda, Daniela / Spisni, Alberto / Burastero, Samuele E

    International journal of molecular sciences

    2023  Volume 24, Issue 2

    Abstract: Exposure to the Mus m 1 aeroallergen is a significant risk factor for laboratory animal allergy. This allergen, primarily expressed in mouse urine where it is characterized by a marked and dynamic polymorphism, is also present in epithelium and dander. ... ...

    Abstract Exposure to the Mus m 1 aeroallergen is a significant risk factor for laboratory animal allergy. This allergen, primarily expressed in mouse urine where it is characterized by a marked and dynamic polymorphism, is also present in epithelium and dander. Considering the relevance of sequence/structure assessment in protein antigenic reactivity, we compared the sequence of the variant Mus m 1.0102 to other members of the Mus m 1 allergen, and used Discotope 2.0 to predict conformational epitopes based on its 3D-structure. Conventional diagnosis of mouse allergy is based on serum IgE testing, using an epithelial extract as the antigen source. Given the heterogeneous and variable composition of extracts, we developed an indirect ELISA assay based on the recombinant component Mus m 1.0102. The assay performed with adequate precision and reasonable diagnostic accuracy (AUC = 0.87) compared to a routine clinical diagnostic test that exploits the native allergen. Recombinant Mus m 1.0102 turned out to be a valuable tool to study the fine epitope mapping of specific IgE reactivity to the major allergen responsible for mouse allergy. We believe that advancing in its functional characterization will lead to the standardization of murine lipocalins and to the development of allergen-specific immunotherapy.
    MeSH term(s) Animals ; Mice ; Allergens ; Lipocalins/genetics ; Food Hypersensitivity ; Enzyme-Linked Immunosorbent Assay ; Immunoglobulin E ; Recombinant Proteins/genetics
    Chemical Substances Allergens ; Lipocalins ; Immunoglobulin E (37341-29-0) ; Recombinant Proteins
    Language English
    Publishing date 2023-01-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms24021193
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: T-cell receptor-mediated cross-reactivity to different allergens is driven by recognition of homologous, phylogenetically conserved epitopes.

    Burastero, Samuele E

    The Journal of allergy and clinical immunology

    2016  Volume 138, Issue 4, Page(s) 1237

    MeSH term(s) Allergens ; Amino Acid Sequence ; Antigens, Plant ; Cross Reactions ; Epitopes ; Plant Proteins ; Receptors, Antigen, T-Cell
    Chemical Substances Allergens ; Antigens, Plant ; Epitopes ; Plant Proteins ; Receptors, Antigen, T-Cell
    Language English
    Publishing date 2016-07-30
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 121011-7
    ISSN 1097-6825 ; 1085-8725 ; 0091-6749
    ISSN (online) 1097-6825 ; 1085-8725
    ISSN 0091-6749
    DOI 10.1016/j.jaci.2016.04.055
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Serological proteome analysis identifies crustacean myosin heavy chain type 1 protein and house dust mite Der p 14 as cross-reacting allergens.

    Conti, Antonio / Alqassir, Noor / Breda, Daniela / Zanardi, Alan / Alessio, Massimo / Burastero, Samuele E

    Advances in clinical and experimental medicine : official organ Wroclaw Medical University

    2023  Volume 32, Issue 1, Page(s) 107–112

    Abstract: Background: Allergies to house dust mite (HDM) and to crustaceans are clinically and pathogenically linked. Several homologous allergenic proteins have been identified, among which tropomyosin is the prototype, expressing epitopes endowed with variable ... ...

    Abstract Background: Allergies to house dust mite (HDM) and to crustaceans are clinically and pathogenically linked. Several homologous allergenic proteins have been identified, among which tropomyosin is the prototype, expressing epitopes endowed with variable levels of immunoglobulin E (IgE) cross-reactivity. Component-resolved diagnosis (CRD) does not allow a thorough characterization of all relevant IgE reactivities to these allergen sources.
    Objectives: We studied 1 patient allergic to shrimp with positive skin prick test to HDM and negative scores for IgE to HDM allergen components routinely used in CRD (group 1 and 2 allergens, Der p 23 and tropomyosin).
    Material and methods: In order to identify the allergen(s) involved in IgE reactivity, we used serological proteome analysis (SERPA), which utilizes two-dimensional gel electrophoresis (2DE), immunoblotting and mass spectrometry (MS). The identified allergenic proteins were tested with sera from 20 crustacean-allergic patients and 19 grass-allergic patients serving as controls.
    Results: Der p 14 and myosin heavy chain type 1 (MHC1) were identified as the components recognized by patient's IgE in the proteome of Dermatophagoides pteronyssinus and Penaeus monodon, respectively. The MHC1 protein shows about 30% sequence identity with Der p 14 in specific domains, and cross-reactivity against epitopes shared by the 2 proteins was demonstrated by reduced reactivity to shrimp extract following pre-incubation with Der p 14. Serum IgE from 5 out of 20 patients allergic to crustaceans reacted with MHC1, compared to none among 19 controls (p < 0.05).
    Conclusion: We identified MHC1 as a relevant allergic component in the proteome of Penaeus monodon, the prototypic allergen source used in diagnosis of allergy to crustaceans. Our data demonstrate MHC1 cross-reactivity between MHC1 and Der p 14 from Dermatophagoides pteronyssinus.
    MeSH term(s) Animals ; Humans ; Allergens ; Epitopes/chemistry ; Hypersensitivity ; Immunoglobulin E ; Myosin Heavy Chains ; Proteome ; Pyroglyphidae ; Tropomyosin/chemistry ; Shellfish Hypersensitivity ; Cross Reactions
    Chemical Substances Allergens ; Epitopes ; Immunoglobulin E (37341-29-0) ; Myosin Heavy Chains (EC 3.6.4.1) ; Proteome ; Tropomyosin
    Language English
    Publishing date 2023-01-07
    Publishing country Poland
    Document type Journal Article
    ZDB-ID 2270257-X
    ISSN 1899-5276 ; 1230-025X
    ISSN 1899-5276 ; 1230-025X
    DOI 10.17219/acem/158773
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Periostin expression in uninvolved skin as a potential biomarker for rapid cutaneous progression in systemic sclerosis patients: a preliminary explorative study.

    De Luca, Giacomo / Campochiaro, Corrado / Burastero, Samuele E / Matucci-Cerinic, Marco / Doglioni, Claudio / Dagna, Lorenzo

    Frontiers in medicine

    2024  Volume 10, Page(s) 1214523

    Abstract: Objectives: This study aimed to evaluate periostin serum levels and skin expression in patients with systemic sclerosis (SSc).: Methods: We enrolled 35 patients with diffuse (d-SSc) or limited (l-SSc) SSc, 15 patients with very early diagnosis of ... ...

    Abstract Objectives: This study aimed to evaluate periostin serum levels and skin expression in patients with systemic sclerosis (SSc).
    Methods: We enrolled 35 patients with diffuse (d-SSc) or limited (l-SSc) SSc, 15 patients with very early diagnosis of systemic sclerosis (VEDOSS), and 30 sex-matched healthy controls. Periostin serum levels were determined by an enzyme-linked immunosorbent assay (ELISA). Periostin skin expression was determined by immunohistochemistry (IHC) on paired involved and uninvolved 5-mm skin biopsy samples in a subgroup of 10 d-SSc and 10 L-SSc patients. A 12-month follow-up was considered.
    Results: We included 50 patients (mean age 53.1 ± 16.1 years; women 94%; mean disease duration 38.2 ± 45.1 months; anti-centromere 50%; anti-Scl70 40%), 35 of them with a definite SSc (68.8% l-SSc; 31.4% d-SSc; mean mRSS 9.0 ± 7.2) and 15 with VEDOSS; 30 controls were also included in this study. Periostin serum levels were higher in SSc patients compared to controls (32.7 ± 8.0 ng/mL vs. 27.7 ± 7.3 ng/mL;
    Conclusion: Periostin skin expression may be a useful biomarker to indicate the presence of a disease at a higher risk of rapid cutaneous involvement.
    Language English
    Publishing date 2024-01-24
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2775999-4
    ISSN 2296-858X
    ISSN 2296-858X
    DOI 10.3389/fmed.2023.1214523
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  5. Article: Thermal stability, ligand binding and allergenicity data of Mus m 1.0102 allergen and its cysteine mutants

    Ferrari, Elena / Corsini, Romina / Burastero, Samuele E. / Tanfani, Fabio / Spisni, Alberto

    Data in Brief. 2020 Apr., v. 29

    2020  

    Abstract: The presented data were obtained with the lipocalin allergen Mus m 1.0102 and its cysteine mutants MM-C138A, MM-C157A and MM-C138,157A, whose structural features and unfold reversibility investigations are presented in the research article entitled “The ... ...

    Abstract The presented data were obtained with the lipocalin allergen Mus m 1.0102 and its cysteine mutants MM-C138A, MM-C157A and MM-C138,157A, whose structural features and unfold reversibility investigations are presented in the research article entitled “The allergen Mus m 1.0102: cysteine residues and molecular allergology” [1].The data were obtained by means of a Dynamic Light Scattering-based thermal stability assay, a Fluorescence-based ligand-binding assay and a basophil degranulation test, and describe proteins’ fold stability, ligand binding ability and allergenic potential, respectively. Analysis of the collected data produced the temperatures corresponding to the onset of the protein unfolding, the dissociation constants for N-Phenyl-1-naphthylamine ligand and the profiles of β-hexosaminidase release from RBL SX-38 cells, sensitized with the serum of selected allergic patients and incubated with increasing antigens concentrations.These data allow for comparison of the lipocalin allergen Mus m 1.0102 with its conserved cysteines mutants and, with regard to their potential application in allergy diagnostics and immunotherapy, they contribute to the process of recombinant allergen characterization and standardization.
    Keywords allergenicity ; allergens ; blood serum ; cysteine ; diagnostic techniques ; dissociation ; hypersensitivity ; immunotherapy ; ligands ; thermal stability
    Language English
    Dates of publication 2020-04
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 2786545-9
    ISSN 2352-3409
    ISSN 2352-3409
    DOI 10.1016/j.dib.2020.105355
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: The allergen Mus m 1.0102: Cysteine residues and molecular allergology

    Ferrari, Elena / Corsini, Romina / Burastero, Samuele E / Tanfani, Fabio / Spisni, Alberto

    Molecular immunology. 2020 Apr., v. 120

    2020  

    Abstract: Mus m 1.0102 is a member of the mouse Major Urinary Protein family, belonging to the Lipocalins superfamily. Major Urinary Proteins (MUPs) are characterized by highly conserved structural motifs. These include a disulphide bond, involved in protein ... ...

    Abstract Mus m 1.0102 is a member of the mouse Major Urinary Protein family, belonging to the Lipocalins superfamily. Major Urinary Proteins (MUPs) are characterized by highly conserved structural motifs. These include a disulphide bond, involved in protein oxidative folding and protein structure stabilization, and a free cysteine residue, substituted by serine only in the pheromonal protein Darcin (MUP20). The free cysteine is recognized as responsible for the onset of inter- or intramolecular thiol/disulphide exchange, an event that favours protein aggregation.Here we show that the substitution of selected cysteine residues modulates Mus m 1.0102 protein folding, fold stability and unfolding reversibility, while maintaining its allergenic potency.Recombinant allergens used for immunotherapy or employed in allergy diagnostic kits require, as essential features, conformational stability, sample homogeneity and proper immunogenicity. In this perspective, recombinant Mus m 1.0102 might appear reasonably adequate as lead molecule because of its allergenic potential and thermal stability. However, its modest resistance to aggregation renders the protein unsuitable for pharmacological preparations. Point mutation is considered a winning strategy.We report that, among the tested mutants, C138A mutant acquires a structure more resistant to thermal stress and less prone to aggregation, two events that act positively on the protein shelf life. Those features make that MUP variant an attractive lead molecule for the development of a diagnostic kit and/or a vaccine.
    Keywords Mus ; allergenicity ; allergens ; alpha-globulins ; analytical kits ; cysteine ; disulfide bonds ; disulfides ; hypersensitivity ; immunogenicity ; immunotherapy ; mutants ; point mutation ; protein folding ; serine ; shelf life ; thermal stability ; thermal stress ; thiols ; vaccines
    Language English
    Dates of publication 2020-04
    Size p. 1-12.
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 424427-8
    ISSN 1872-9142 ; 0161-5890
    ISSN (online) 1872-9142
    ISSN 0161-5890
    DOI 10.1016/j.molimm.2020.01.022
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Thermal stability, ligand binding and allergenicity data of Mus m 1.0102 allergen and its cysteine mutants.

    Ferrari, Elena / Corsini, Romina / Burastero, Samuele E / Tanfani, Fabio / Spisni, Alberto

    Data in brief

    2020  Volume 29, Page(s) 105355

    Abstract: The presented data were obtained with the lipocalin allergen Mus m 1.0102 and its cysteine mutants MM-C138A, MM-C157A and MM-C138,157A, whose structural features and unfold reversibility investigations are presented in the research article entitled "The ... ...

    Abstract The presented data were obtained with the lipocalin allergen Mus m 1.0102 and its cysteine mutants MM-C138A, MM-C157A and MM-C138,157A, whose structural features and unfold reversibility investigations are presented in the research article entitled "The allergen Mus m 1.0102: cysteine residues and molecular allergology" [1]. The data were obtained by means of a Dynamic Light Scattering-based thermal stability assay, a Fluorescence-based ligand-binding assay and a basophil degranulation test, and describe proteins' fold stability, ligand binding ability and allergenic potential, respectively. Analysis of the collected data produced the temperatures corresponding to the onset of the protein unfolding, the dissociation constants for N-Phenyl-1-naphthylamine ligand and the profiles of β-hexosaminidase release from RBL SX-38 cells, sensitized with the serum of selected allergic patients and incubated with increasing antigens concentrations. These data allow for comparison of the lipocalin allergen Mus m 1.0102 with its conserved cysteines mutants and, with regard to their potential application in allergy diagnostics and immunotherapy, they contribute to the process of recombinant allergen characterization and standardization.
    Language English
    Publishing date 2020-02-29
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2786545-9
    ISSN 2352-3409 ; 2352-3409
    ISSN (online) 2352-3409
    ISSN 2352-3409
    DOI 10.1016/j.dib.2020.105355
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: The allergen Mus m 1.0102: Cysteine residues and molecular allergology.

    Ferrari, Elena / Corsini, Romina / Burastero, Samuele E / Tanfani, Fabio / Spisni, Alberto

    Molecular immunology

    2020  Volume 120, Page(s) 1–12

    Abstract: Mus m 1.0102 is a member of the mouse Major Urinary Protein family, belonging to the Lipocalins superfamily. Major Urinary Proteins (MUPs) are characterized by highly conserved structural motifs. These include a disulphide bond, involved in protein ... ...

    Abstract Mus m 1.0102 is a member of the mouse Major Urinary Protein family, belonging to the Lipocalins superfamily. Major Urinary Proteins (MUPs) are characterized by highly conserved structural motifs. These include a disulphide bond, involved in protein oxidative folding and protein structure stabilization, and a free cysteine residue, substituted by serine only in the pheromonal protein Darcin (MUP20). The free cysteine is recognized as responsible for the onset of inter- or intramolecular thiol/disulphide exchange, an event that favours protein aggregation. Here we show that the substitution of selected cysteine residues modulates Mus m 1.0102 protein folding, fold stability and unfolding reversibility, while maintaining its allergenic potency. Recombinant allergens used for immunotherapy or employed in allergy diagnostic kits require, as essential features, conformational stability, sample homogeneity and proper immunogenicity. In this perspective, recombinant Mus m 1.0102 might appear reasonably adequate as lead molecule because of its allergenic potential and thermal stability. However, its modest resistance to aggregation renders the protein unsuitable for pharmacological preparations. Point mutation is considered a winning strategy. We report that, among the tested mutants, C138A mutant acquires a structure more resistant to thermal stress and less prone to aggregation, two events that act positively on the protein shelf life. Those features make that MUP variant an attractive lead molecule for the development of a diagnostic kit and/or a vaccine.
    MeSH term(s) Allergens/chemistry ; Allergens/genetics ; Allergens/immunology ; Amino Acid Substitution ; Animals ; Cell Line ; Cysteine/chemistry ; Humans ; Immunologic Tests ; Ligands ; Mice ; Models, Molecular ; Mutagenesis, Site-Directed ; Protein Conformation ; Protein Folding ; Protein Stability ; Protein Structure, Secondary ; Proteins/chemistry ; Proteins/genetics ; Proteins/immunology ; Recombinant Proteins/chemistry ; Recombinant Proteins/genetics ; Recombinant Proteins/immunology ; Spectrometry, Fluorescence ; Spectroscopy, Fourier Transform Infrared
    Chemical Substances Allergens ; Ligands ; Mus m 1 allergen, Mus musculus ; Proteins ; Recombinant Proteins ; major urinary proteins ; Cysteine (K848JZ4886)
    Language English
    Publishing date 2020-02-07
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 424427-8
    ISSN 1872-9142 ; 0161-5890
    ISSN (online) 1872-9142
    ISSN 0161-5890
    DOI 10.1016/j.molimm.2020.01.022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Pollen-cross allergenicity mediated by panallergens: a clue to the patho-genesis of multiple sensitizations.

    Burastero, Samuele E

    Inflammation & allergy drug targets

    2006  Volume 5, Issue 4, Page(s) 203–209

    Abstract: Allergens are proteins capable of raising in predisposed (atopic) individuals an IgE-dependent type I hyper-sensitivity reaction, supporting allergic symptoms such as anaphylactic shock, asthma and rhinitis. Panallergens are evolutionarily conserved, ... ...

    Abstract Allergens are proteins capable of raising in predisposed (atopic) individuals an IgE-dependent type I hyper-sensitivity reaction, supporting allergic symptoms such as anaphylactic shock, asthma and rhinitis. Panallergens are evolutionarily conserved, ubiquitous components of several complex sources of allergens, which usually act as minor allergens, i.e., they do not react with the majority of sera from patients allergic to a given allergen source. However, their presence has important clinical implications in establishing the phenomenon of food-pollen cross-reactivity, in the interpretation of diagnostic tests and in the preparation of immunotherapy extracts. A T-lymphocyte component is necessary to support the panallergen-specific humoral IgE antibody response. While several excellent reviews are available regarding allergen cross-reactivity from the IgE-perspective, data on cross-allergenicity from the T-lymphocyte standpoint are quite limited. Indeed, this is a crucial issue in the comprehension of polysensitization, since it is the initial exposure to conserved panallergens that may subsequently drive the allergic immune response towards major allergenic components, which at first proved non-sensitizing to a given patient, through a mechanism of intermolecular epitope spreading. Here, we will discuss data showing that a functionally relevant T-cell response to molecularly defined, conserved regions of panallergens can support cross-allergenicity in allergic patients. This subject is relevant to the comprehension of the natural history and to the clinical management of the majority of allergic patients, who suffer from multiple allergies.
    MeSH term(s) Allergens/genetics ; Allergens/immunology ; Amino Acid Sequence ; Animals ; Cross Reactions ; Epitopes/immunology ; Humans ; Immunoglobulin E/immunology ; Molecular Sequence Data ; Plants/genetics ; Pollen/genetics ; Pollen/immunology ; T-Lymphocytes/immunology
    Chemical Substances Allergens ; Epitopes ; Immunoglobulin E (37341-29-0)
    Language English
    Publishing date 2006-12-12
    Publishing country United Arab Emirates
    Document type Journal Article ; Review
    ZDB-ID 2215862-5
    ISSN 2212-4055 ; 1871-5281
    ISSN (online) 2212-4055
    ISSN 1871-5281
    DOI 10.2174/187152806779010918
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  10. Article ; Online: Sublingual immunotherapy for allergic rhinitis: an update.

    Burastero, Samuele E

    Current opinion in otolaryngology & head and neck surgery

    2006  Volume 14, Issue 3, Page(s) 197–201

    Abstract: Purpose of review: The inter-relationship between allergy and nasal diseases has long been known. Failure to address when allergy is a contributing factor diminishes the possibility of a successful surgical intervention. Sublingual immunotherapy is ... ...

    Abstract Purpose of review: The inter-relationship between allergy and nasal diseases has long been known. Failure to address when allergy is a contributing factor diminishes the possibility of a successful surgical intervention. Sublingual immunotherapy is recommended by the World Health Organization to treat allergic rhinitis and is widely used in Europe. Many clinical trials and rigorous meta-analysis support its efficacy. The criteria, however, for the integration of this treatment (with the surgical management of those allergic patients who suffer chronic nasal obstruction, severe drug-resistant hypertrophy and increase in glandular structures of the inferior turbinates) are not fully established. We review here the most recent literature on the efficacy and safety of sublingual immunotherapy. The purpose is to stimulate the use of complementary approaches by ear, nose and throat doctors and allergologists, and to improve the management of patients with persistent allergic rhinitis.
    Recent findings: In addition to the results of clinical trials, postmarketing surveillance has confirmed the high safety profile of sublingual immunotherapy in adults and children, its positive impact on the quality of life, and the reduction of the personal and social cost of allergy. Sublingual immunotherapy can prevent new allergic sensitizations and maintain its beneficial effect for years after its discontinuation.
    Summary: Sublingual immunotherapy is a highly efficacious and well tolerated form of immunotherapy for allergic rhinitis, and it is capable of interfering with disease progression. Sublingual immunotherapy should be integrated with surgical intervention to achieve optimal outcomes in allergic subjects with chronic nasal obstruction.
    MeSH term(s) Administration, Sublingual ; Humans ; Immunotherapy ; Rhinitis, Allergic, Perennial/drug therapy ; Rhinitis, Allergic, Seasonal/drug therapy
    Language English
    Publishing date 2006-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1232518-1
    ISSN 1531-6998 ; 1068-9508
    ISSN (online) 1531-6998
    ISSN 1068-9508
    DOI 10.1097/01.moo.0000193187.23063.ae
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