The dysregulated Type 2 immune response drives AD

Three types of immune response play a natural protective role against different pathogens, the Type 2 immune response drives AD specifically2-4

Type 2 inflammation, due to increased signalling of IL-4 and IL-13, contributes to the clinical disease features of AD4–6

Dysregulation of the Type 2 immune response5,7

Leads to increased signalling and production of IL-4 and IL-135

Which drives and perpetuates Type 2 inflammation5

Resulting in the clinical disease features of AD:4,6

•  Skin barrier dysfunction
•  Skin lesions
•  Itch
•  Increased susceptibility to skin infections


Selectively targeting a single signalling receptor, the IL-4Rα, thereby inhibiting IL-4 and IL-13 signalling, can help to reduce the persistent underlying Type 2 inflammation in AD8

Learn more about the pathophysiology of AD

Inflammatory pathways

What are the main inflammatory pathways involved in the disease? Find out about the pathway involved in AD.

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Overview of AD

Find out more about how AD has a continuous inflamation cycle.

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Mode of action DUPIXENT

Have questions about how DUPIXENT works?

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    AD, atopic dermatitis; IL, interleukin; IL-4Rα, interleukin 4 receptor alpha; ILC, innate lymphoid cells; Th, T-helper cells.


    1. DUPIXENT Summary of Product Characteristics. September 2021.
    2. Leung DYM, et al. J Clin Invest. 2004;113(5):651–657.
    3. Suárez-Fariñas M, et al. J Allergy Clin Immunol. 2011;127(4):954–964.
    4. Gittler JK, et al. J Allergy Clin Immunol. 2012;130(6):1344–1354.
    5. Gandhi NA, et al. Nat Rev Drug Discov. 2016;15:35–50.
    6. Biedermann T, et al. Front Immunol. 2015;6:353.
    7. Artis D & Spits H. Nature. 2015;517:293–301.
    8. Guttman-Yassky E, et al. J Allergy Clin Immunol. 2019;143:155– 172.

MAT-IE-2101040(v4.0) | Date of preparation: February 2022