Esparza-Gordillo, Jorge; Schaarschmidt, Heidi; Liang, Liming; Cookson, William; Bauerfeind, Anja; Lee-Kirsch, Min-Ae; Nemat, Katja; Henderson, John; Paternoster, Lavinia; Harper, John I; Mangold, Elisabeth; Nöthen, Markus M; Rüschendorf, Franz; Kerscher, Tamara; Marenholz, Ingo; Matanovic, Anja; Lau, Susanne; Keil, Thomas; Bauer, Carl-Peter; Kurek, Michael; Ciechanowicz, Andrzej; Macek, Milan; Franke, Andre; Kabesch, Michael; Hübner, Norbert; Abecasis, Goncalo; Weidinger, Stephan; Moffatt, Miriam; Lee, Young-Ae     «

Esparza-Gordillo, Jorge; Schaarschmidt, Heidi; Liang, Liming; Cookson, William; Bauerfeind, Anja; Lee-Kirsch, Min-Ae; Nemat, Katja; Henderson, John; Paternoster, Lavinia; Harper, John I; Mangold, Elisabeth; Nöthen, Markus M; Rüschendorf, Franz; Kerscher, Tamara; Marenholz, Ingo; Matanovic, Anja; Lau, Susanne; Keil, Thomas; Bauer, Carl-Peter; Kurek, Michael; Ciechanowicz, Andrzej; Macek, Milan; Franke, Andre; Kabesch, Michael; Hübner, Norbert; Abecasis, Goncalo; Weidinger, Stephan; Moffatt, Miria...     »

Atopic dermatitis (AD) is a common inflammatory skin disease. Previous studies have revealed shared genetic determinants among different inflammatory disorders, suggesting that markers associated with immune-related traits might also play a role in AD.We sought to identify novel genetic risk factors for AD.We examined the results of all genome-wide association studies from a public repository and selected 318 genetic markers that were significantly associated with any inflammatory trait. These markers were considered candidates and tested for association with AD in a 3-step approach including 7 study populations with 7130 patients with AD and 9253 control subjects.A functional amino acid change in the IL-6 receptor (IL-6R Asp358Ala; rs2228145) was significantly associated with AD (odds ratio [OR], 1.15; P = 5 × 10(-9)). Interestingly, investigation of 2 independent population-based birth cohorts showed that IL-6R 358Ala specifically predisposes to the persistent form of AD (ORpersistent AD = 1.22, P = .0008; ORtransient AD = 1.04, P = .54). This variant determines the balance between the classical membrane-bound versus soluble IL-6R signaling pathways. Carriers of 358Ala had increased serum levels of soluble IL-6R (P = 4 × 10(-14)), with homozygote carriers showing a 2-fold increase. Moreover, we demonstrate that soluble IL-6R levels were higher in patients with AD than in control subjects (46.0 vs 37.8 ng/mL, P = .001). Additional AD risk variants were identified in RAD50, RUNX3, and ERBB3.Our study supports the importance of genetic variants influencing inflammation in the etiology of AD. Moreover, we identified a functional genetic variant in IL6R influencing disease prognosis and specifically predisposing to persistent AD.     «

Atopic dermatitis (AD) is a common inflammatory skin disease. Previous studies have revealed shared genetic determinants among different inflammatory disorders, suggesting that markers associated with immune-related traits might also play a role in AD.We sought to identify novel genetic risk factors for AD.We examined the results of all genome-wide association studies from a public repository and selected 318 genetic markers that were significantly associated with any inflammatory trait. These m...     »