Dermatophagoides siboney allergens (D. siboney allergens)

Dermatophagoides siboney allergens are a complex group of proteins produced by the house dust mite species D. siboney, which is a major source of indoor allergens in tropical and subtropical regions, particularly Cuba (Ferrándiz et al., 1996, PMID: 8952544). These allergens include several well-characterized proteins such as Der s 1 (a cysteine protease), Der s 2 (a lipid-binding protein of the NPC2 family), and Der s 3 (a serine protease), which are officially recognized by the WHO/IUIS Allergen Nomenclature Sub-Committee. In sensitized individuals, these proteins act as antigens that cross-link IgE on the surface of mast cells and basophils, triggering the release of inflammatory mediators that lead to allergic asthma, rhinitis, and atopic dermatitis. From a therapeutic perspective, these allergens are the primary components of allergen-specific immunotherapy (AIT) products, such as the VALERGEN-DS extract, which are designed to desensitize the immune system through controlled exposure (Borroto et al., 2003, PMID: 12846871). Understanding the molecular composition of these allergens is essential for the development of standardized diagnostic tools and effective vaccines tailored to regional mite populations.

Other names

Cuban house dust mite allergensDer s allergensDermatophagoides siboney mite allergens

Allergen-specific immunotherapy (AIT) utilizes these allergens to induce immunological tolerance by shifting the immune response from a Th2-dominated profile to a Th1/Treg profile, increasing the production of blocking antibodies such as IgG4 and reducing IgE-mediated mast cell degranulation (Borroto et al., 2003, PMID: 12846871).