Cypress pollen does not cross-react to plant-derived foods

Area of Science:

• Immunology
• Allergology
• Environmental Health

Background:

• Investigates potential cross-reactivity between Cupressus sempervirens pollen allergy and food allergies.
• Examines common plant-derived foods like peach, apple, tomato, and Juniperus oxycedrus berry.
• Focuses on patients with confirmed monosensitization to cypress pollen.

Discussion:

• Results indicate no clinical or immunological reactivity to peach, apple, or tomato in cypress-allergic individuals.
• Skin prick tests (SPT) and in-vitro tests were used to assess reactivity.
• While two patients showed positive SPT to Juniperus oxycedrus berry, in-vitro tests excluded cross-reactivity.

Key Insights:

• Cupressaceae pollen allergy is not linked to adverse reactions to tested plant-derived foods.
• Monosensitization to cypress pollen does not predict food allergies to peach, apple, or tomato.
• Juniperus oxycedrus berry reactivity in SPT was not confirmed by in-vitro diagnostics, ruling out cross-reactivity.

Outlook:

• Further research could explore other plant-derived foods and different Cupressaceae species.
• Understanding specific allergen profiles is crucial for accurate diagnosis and management of allergic diseases.
• This study contributes to differentiating airborne pollen allergies from food sensitivities.