Project description:Atopic dermatitis (AD) is the most common chronic inflammatory skin disorder, characterized by intense itch and recurrent eczematous lesions. Due to lack of proper therapy, the strategies of T cell modulators in combination with targeting keratinocytes and/or myeloid cells might hold promise for achieving disease control in AD patients better than T cell modulators alone. we used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during HY209 treatment in mouse skin
Project description:We identified zinc-alpha-2-glycoprotein (ZAG), a 41-kDa adipokine that regulates body weight, lipid, and mobilization, as a novel biomarker for AD. ZAG levels were consistently decreased in sera, T cells, and skin in human AD patients compared with healthy controls. We used microarrays to obtain the change of signaling molecules by topical treatment of recombinant ZAG using atopic dermatitis induced mouse model.
Project description:Winged bean (WB), Psophocarpus tetragonolobus, is a tropical legume, the potential of which is not yet been understood. We found that a 5 week-oral administration of WB seed extract inhibited wrinkle formation induced by repeated tape stripping (TS), which is a model of lichenification in human chronic eczematous dermatitis. To elucidate mechanism of the effect of WB on this model, we applied microarray analysis. Skin barrier was disrupted by repeated application and removal (tape stripping; TS) of cellophane tape on the dorsal skin of the left side. This procedure was started after 1 week-administration of winged bean (WB) extract, and was conducted 3 times per week for 4 weeks. Dorsal skin samples from three experimental groups were used for microarray experiment. These groups were the non-TS (NT), TS, and TS with oral administration of WB extract (TS/WB). The DNA microarray experiment was performed using Affymetrix Mouse Genome 430 2.0 Array.
Project description:Transcriptional profile of full thickness skin or epidermis only obtained from K14-CreER+/+;GPX4flox mouse model vs K14-CreER-/-;GPX4flox controls is analyzed and compared to transcriptional profile of epidermis plus papillary dermis obtained from patient-matched lesional vs perilesional psoriatic skin.