Toxins (Nov 2024)

Comparative Assessment of the Allergenicity of Hyaluronidases from <i>Polistes dominula</i> (Pol d 2), <i>Vespula vulgaris</i> (Ves v 2), and <i>Apis mellifera</i> Venom (Api m 2)

  • Johannes Grosch,
  • Bernadette Eberlein,
  • Sebastian Waldherr,
  • Mariona Pascal,
  • Britta Dorn,
  • Clara San Bartolomé,
  • Federico De La Roca Pinzón,
  • Maximilian Schiener,
  • Ulf Darsow,
  • Tilo Biedermann,
  • Jonas Lidholm,
  • Maria Beatrice Bilò,
  • Thilo Jakob,
  • Carsten B. Schmidt-Weber,
  • Simon Blank

DOI
https://doi.org/10.3390/toxins16110498
Journal volume & issue
Vol. 16, no. 11
p. 498

Abstract

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Sensitization to cross-reactive allergens complicates identifying the culprit insect in Hymenoptera venom allergy via diagnostic tests. This study evaluates sensitization to hyaluronidases (Api m 2 from honey bee (Apis mellifera) venom, HBV; Pol d 2 from European paper wasp (Polistes dominula) venom, PDV; and Ves v 2.0101 and Ves v 2.0201 from yellow jacket (Vespula vulgaris) venom, YJV) and their cross-reactivity in allergic patients from Italy, Spain, and Germany using ImmunoCAPs, ELISA, and basophil activation tests. Sensitization rates were 45% for Api m 2 in HBV-allergic subjects, 25% for Pol d 2 in PDV-allergic individuals, and 20% and 10% for Ves v 2.0201 and Ves v 2.0101 in YJV-allergic patients, respectively. Patients primarily sensitized to Api m 2 showed minimal cross-reactivity to vespid hyaluronidases, whereas those primarily sensitized to Pol d 2 or Ves v 2.0201 exhibited IgE reactivity to Api m 2. Neither Pol d 2 nor Ves v 2.0201 triggered basophil activation. Cross-reactivity of Api m 2, Pol d 2, and Ves v 2.0201 depends on the primary sensitizing venom. Sensitization to Pol d 2 and Ves v 2.0201 remains below 25%, yet these patients may exhibit cross-reactivity to Api m 2. Conversely, HBV-allergic patients sensitized to Api m 2 show minimal reactivity to Pol d 2 or Ves v 2.0201.

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