Person: Batanero Cremades, Eva
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First Name
Eva
Last Name
Batanero Cremades
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Ciencias Químicas
Department
Bioquímica y Biología Molecular
Area
Bioquímica y Biología Molecular
Identifiers
6 results
Search Results
Now showing 1 - 6 of 6
Item 2S albumins and 11S globulins, two storage proteins involved in pumpkin seeds allergy(Allergy: European Journal of Allergy and Clinical Immunology, 2021) Bueno Díaz, Cristina; Martín-Pedraza, Laura; León, Laura; Haroun-Díaz, Elisa; Pastor Vargas, Carlos; Muñoz-García, Esther; De las Heras, Manuel; Batanero Cremades, Eva; Cuesta-Herranz, Javier; Villalba Díaz, María Teresa- Project number: 8
Item ¿Qué es lo que sabemos… sobre Biología?(2021) Batanero Cremades, Eva; Rodríguez Crespo, José Ignacio; Castillo Lluva, Sonia; García Álvarez, Begoña; Bueno Díaz, CristinaDada la importancia del inglés y de las tecnologías móviles hoy día, los estudiantes utilizarán dichas tecnologías para reforzar el aprendizaje de Biología, y motivarlos a estudiar, mediante dos actividades: crear test Kahoot! en inglés y concursar. - Project number: 194
Item “¿Qué es lo que sabemos… sobre Biología”(2020) Batanero Cremades, Eva; Rodríguez Crespo, José Ignacio; San Segundo Acosta, Pablo; Bueno Díaz, Cristina; Parrón Ballesteros, JorgeDada la importancia del inglés y de las tecnologías móviles hoy día, los estudiantes utilizarán dichas tecnologías para reforzar el aprendizaje de Biología, y motivarlos a estudiar, mediante dos actividades: crear test Kahoot en inglés y concursar. Item Characterization of Relevant Biomarkers for the Diagnosis of Food Allergies: An Overview of the 2S Albumin Family(Foods, 2021) Bueno Díaz, Cristina; Martín-Pedraza, Laura; Parrón Ballesteros, Jorge; Cuesta-Herranz, Javier; Cabanillas, Beatriz; Pastor Vargas, Carlos; Batanero Cremades, Eva; Villalba Díaz, María Teresa2S albumins are relevant and often major allergens from several tree nuts and seeds, affecting mainly children and young people. The present study aims to assess how the structural features of 2S albumins could affect their immunogenic capacity, which is essential to comprehend the role of these proteins in food allergy. For this purpose, twelve 2S albumins were isolated from their respective extracts by chromatographic methods and identified by MALDI-TOF massspectrometry. Their molecular and structural characterization was conducted by electrophoretic, spectroscopic and in silico methods, showing that these are small proteins that comprise a wide range of isoelectric points, displaying a general high structure stability to thermal treatment. Despite low amino acid sequence identity, these proteins share structural features, pointing conformational epitopes to explain cross-reactivity between them. Immunoblotting with allergic patients’ sera revealed those possible correlations between evolutionarily distant 2S albumins from different sources. The availability of a well-characterized panel of 2S albumins from plant-derived sources allowed establishing correlations between their structural features and their allergenic potential, including their role in cross-reactivity processesItem Association Between the Seed Storage Proteins 2S Albumin and 11S Globulin and Severe Allergic Reaction After Flaxseed Intake(Journal of Investigational Allergology and Clinical Immunology, 2022) Bueno Díaz, Cristina; Biserni, C; Martín-Pedraza, L; de las Heras M; Blanco C; Vázquez-Cortés S; Fernández-Rivas M; Batanero Cremades, Eva; Cuesta-Herranz J; Villalba Díaz, María TeresaBackground: Given the increased popularity of flaxseed in meals, several cases of allergy to these seeds have been reported. Little is known about the allergens implicated in hypersensitivity reactions to flaxseed. The present study aimed to identify the allergens involved in IgE-mediated reactions in 5 patients with a clinical history of severe systemic symptoms after flaxseed consumption. Methods: Proteins that were potential allergens with IgE-binding capacity were purified from flaxseed extract using chromatography and identified via MALDI-TOF mass spectrometry. Immunoassays were performed using the 5 allergic patients’ sera tested individually and as a pool. Results: Immunoblotting of the flaxseed extract revealed a low-molecular-mass protein (around 13 kDa) in 4 of the 5 patients, while a protein of approximately 55 kDa was detected in 2 patients. The proteins were identified by mass spectrometry as flaxseed 2S albumin, which is included in the WHO/IUIS allergen nomenclature as Lin u 1, and 11S globulin. Inhibition assays revealed in vitro IgE-mediated cross-reactivity between Lin u 1 and peanut and cashew nut proteins, while IgE-mediated recognition of 11S globulin by patients’ sera was partially inhibited by several plant-derived sources. Conclusions: Seed storage proteins from flaxseed were involved in the development of severe symptoms in the 5 patients studied and exhibited cross-reactivity with other allergenic sources. Besides the severity of flaxseed allergy in patients sensitized to 2S albumin, this is the first time that 11S globulin has been identified as a potential allergen. Taking these data into account should ensure a more accurate diagnosisItem Beyond allergic progression: From molecules to microbes as barrier modulators in the gut-lung axis functionality(Frontiers in Allergy, 2023) Parrón Ballesteros, Jorge; Rubén García Gordo; López Rodríguez, Juan Carlos; Olmo López, Nieves; Villalba Díaz, María Teresa; Batanero Cremades, Eva; Turnay Abad, Francisco JavierThe “epithelial barrier hypothesis” states that a barrier dysfunction can result in allergy development due to tolerance breakdown. This barrier alteration may come from the direct contact of epithelial and immune cells with the allergens, and indirectly, through deleterious effects caused by environmental changes triggered by industrialization, pollution, and changes in the lifestyle. Apart from their protective role, epithelial cells can respond to external factors secreting IL-25 IL-33, and TSLP, provoking the activation of ILC2 cells and a Th2-biased response. Several environmental agents that influence epithelial barrier function, such as allergenic proteases, food additives or certain xenobiotics are reviewed in this paper. In addition, dietary factors that influence the allergenic response in a positive or negative way will be also described here. Finally, we discuss how the gut microbiota, its composition, and microbe-derived metabolites, such as short-chain fatty acids, alter not only the gut but also the integrity of distant epithelial barriers, focusing this review on the gut-lung axis.