Immunoglobulin E specific for Stemphylium solani epitopes (sIgE (Stemphylium solani))

Immunoglobulin E (IgE) specific for Stemphylium solani epitopes refers to the subset of IgE antibodies that recognize allergenic proteins from the fungus Stemphylium solani. These antibodies are central to the pathogenesis of Type I hypersensitivity reactions, where they bind to high-affinity FcεRI receptors on mast cells and basophils [1]. Upon re-exposure to Stemphylium allergens, the cross-linking of these surface-bound IgE molecules triggers the release of inflammatory mediators, leading to symptoms of allergic rhinitis, conjunctivitis, and asthma [2, 3].\n\nStemphylium solani is a recognized aeroallergen, often showing cross-reactivity with other fungi like Alternaria, which complicates the clinical profile of sensitized patients [4]. Therapeutic interventions include the use of anti-IgE monoclonal antibodies, such as omalizumab, which prevent these antibodies from binding to their receptors, and allergen-specific immunotherapy (AIT) designed to induce immune tolerance to the specific fungal epitopes [5, 6]. Monitoring the levels of these specific IgE antibodies is a standard diagnostic procedure for identifying fungal sensitization and guiding treatment strategies in allergic respiratory disease. Sources: [1] Galli SJ, et al. (2008) Nature; [2] Simon-Nobbe B, et al. (2008) Int Arch Allergy Immunol; [3] Koivikko A, et al. (1991) Allergy; [4] Gabriel MF, et al. (2016) Methods Mol Biol; [5] Normansell R, et al. (2014) Cochrane Database Syst Rev; [6] Akdis CA, et al. (2011) J Allergy Clin Immunol.

Other names

Anti-Stemphylium solani IgEStemphylium solani-specific IgEsIgE Stemphylium solani

Omalizumab binds to the Cε3 domain of circulating IgE, preventing its interaction with the high-affinity IgE receptor (FcεRI) on mast cells and basophils, thereby inhibiting the allergic cascade. Allergen-specific immunotherapy involves the administration of increasing doses of Stemphylium solani allergens to induce peripheral T-cell tolerance and shift the immune response from a Th2 to a Th1/Treg profile.