title: Lupin and Other Potentially Cross-Reactive Allergens in Peanut Allergy.
abstract: OBJECTIVE
  The presence of IgE cross-reactivity between peanut allergens and allergens from other legumes and tree nuts has been demonstrated, but the identification of the involved individual allergens is still limited. The aim of this review is to describe new allergenic findings, of potential relevance for cross-reactivity among peanut and lupin.
  
  
  RESULTS
  Seventeen allergens of peanut have been included in the official allergen nomenclature database to date. Lupin sensitization has been observed in 15-20% of individuals with known peanut allergy, The majority of lupin seed proteins are comprised of α-conglutins (legumin-like) and β-conglutins (vicilin-like), and to a lesser extent γ-conglutins (vicilin-like) and δ-conglutins (2S albumins). Several molecules may fuel peanut-lupin cross-reactivity. Awareness among physicians and general public could avoid unexpected allergic reactions. However, these do not appear frequent and no data suggest a precautionary labelling of lupin in foods.
authors.affiliation: Division of Allergy, University Department of Pediatrics, Pediatric Hospital Bambino Gesù, Vatican City, Italy. Maurizio.mennini@opbg.net.
authors.forename: Maurizio
authors.initials: M
authors.lastname: Mennini
authors.affiliation: Division of Allergy, University Department of Pediatrics, Pediatric Hospital Bambino Gesù, Vatican City, Italy.
authors.forename: Lamia
authors.initials: L
authors.lastname: Dahdah
authors.affiliation: Division of Allergy, University Department of Pediatrics, Pediatric Hospital Bambino Gesù, Vatican City, Italy.
authors.forename: Oscar
authors.initials: O
authors.lastname: Mazzina
authors.affiliation: Division of Allergy, University Department of Pediatrics, Pediatric Hospital Bambino Gesù, Vatican City, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Fiocchi
mesh_terms: D000485:Allergens / Q000276:immunology*; D003429:Cross Reactions; D006801:Humans; D007073:Immunoglobulin E / Q000276:immunology*; D031297:Lupinus / Q000276:immunology*; D021183:Peanut Hypersensitivity / Q000276:immunology*
chemical_list: D000485:Allergens; D007073:Immunoglobulin E
keywords: Allergy; Cross-reactivity; Food labelling; IgE; Lupin; Peanut allergy