Journal
CLINICAL REVIEWS IN ALLERGY & IMMUNOLOGY
Volume 41, Issue 3, Pages 282-295Publisher
HUMANA PRESS INC
DOI: 10.1007/s12016-010-8231-1
Keywords
Antimicrobial peptides; Atopic dermatitis; Barrier function; Barrier repair
Categories
Funding
- NIH [R01-AR019098, R01-AI059311]
- DOD [W81XWH-05-2-0094]
- Medical Research Service, Department of Veterans Affairs
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Excessive Th2 cell signaling and IgE production play key roles in the pathogenesis of atopic dermatitis (AD). Yet, recent information suggests that the inflammation in AD instead is initiated by inherited insults to the barrier, including a strong association between mutations in FILAGGRIN and SPINK5 in Netherton syndrome, the latter of which provides an important clue that AD is provoked by excess serine protease activity. But acquired stressors to the barrier may also be required to initiate inflammation in AD, and in addition, microbial colonization by Staphylococcus aureus both amplifies inflammation, but also further stresses the barrier in AD. Therapeutic implications of these insights are as follows: While current therapy has been largely directed toward ameliorating Th2-mediated inflammation and/or pruritus, these therapies are fraught with short-term and potential long-term risks. In contrast, barrier repair therapy, with a ceramide-dominant triple-lipid mixture of stratum corneum lipids, is more logical, of proven efficacy, and it provides a far-improved safety profile.
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