Vespa velutina nigrithorax venom allergy: inhibition studies approach for the choice of specific immunotherapy

Eur Ann Allergy Clin Immunol. 2022 Dec 13. doi: 10.23822/EurAnnACI.1764-1489.277. Online ahead of print.ABSTRACTVespa velutina nigrithorax (VVN), commonly known as Asian wasp because endemic in Asia, represents an alien species in Europe. VVN can induce allergic reactions similar to those caused by other Hymenoptera and deaths after VVN stings, presumably due to fatal allergic reactions, were reported. In the treatment of Hymenoptera venom hypersensitivity, specific immunotherapy (VIT) is highly effective, and the vaccine allergen-specificity plays a crucial role. Currently, there is no specific available VIT for VVN, so VVN stung patients with severe systemic reactions are treated with Vespula spp (Vspp) venom. It is also relevant to assess if patients stung by VVN and showing allergic reactions could be treated with the Hymenoptera commercially available extracts Vespa crabro (VC) and Vspp, or if they need the specific VIT with VVN venom extract. Our results suggested that both Vspp and VC venoms were able to inhibit the specific IgE for VVN, although the VC venom, compared to the venom of Vspp showed a higher inhibition.PMID:36515256 | DOI:10.23822/EurAnnACI.1764-1489.277

Source: European Annals of Allergy and Clinical Immunology - December 14, 2022 Category: Allergy & Immunology Authors: V Grossi M Severino A Massolo M Infantino F Laureti D Macchia E Meucci E Francescato B Pantera A Ebbli F Fumagalli B Lari A Perri I Liotti G Ciotta G Terenzi S V Valeva M Consolati T Folgore M Manfredi Source Type: research