Back to Search
Start Over
Expressions of peroxisome proliferator-activated receptors ( PPARs) are directly influenced by permeability barrier abrogation and inflammatory cytokines and depressed PPARα modulates expressions of chemokines and epidermal differentiation-related molecules in keratinocytes
- Source :
- Experimental Dermatology; Sep2013, Vol. 22 Issue 9, p606-608, 3p, 2 Graphs
- Publication Year :
- 2013
-
Abstract
- Previous studies have demonstrated that the activation of peroxisome proliferator-activated receptors ( PPARs) not only has positive effects on permeability barrier homoeostasis but also has anti-inflammatory effects by an as yet unknown mechanism. Reduced expression of PPARα in lesion of human atopic dermatitis ( AD) and in epidermis of murine AD-like dermatitis has been demonstrated. This study revealed that expression of PPARα alone among PPARs (α, β/δ and γ) was suppressed by both permeability barrier abrogation and additional existence of Th2 cytokine in cultured normal human keratinocytes. In addition, expressions of transglutaminase 1 and loricrin and those of thymus and activation-related chemokine and regulated on activation normal T-cell expressed in cultured human keratinocytes were reduced and enhanced, respectively, by transfection with si RNA for PPARα. In conclusion, depressed PPARα in keratinocytes might be involved in a relationship between permeability barrier abrogation and allergic inflammation and could be a therapeutic target which accounts for both the aspects in AD. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09066705
- Volume :
- 22
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- Experimental Dermatology
- Publication Type :
- Academic Journal
- Accession number :
- 89730416
- Full Text :
- https://doi.org/10.1111/exd.12208