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Article Publish Status: FREE
Abstract Title:

Ovalicin attenuates atopic dermatitis symptoms by inhibiting IL-31 signaling and intracellular calcium influx.

Abstract Source:

J Biomed Res. 2021 Jun 16:1-11. Epub 2021 Jun 16. PMID: 34497158

Abstract Author(s):

Sung-Hyun Hwang, Yeseul Yang, Yeji Jeong, Yongbaek Kim

Article Affiliation:

Sung-Hyun Hwang

Abstract:

Atopic dermatitis (AD) is a common skin disorder difficult to be treated with medication. This study investigated the potential of ovalicin extracted fromfor the treatment of AD usingandmodels. We found that, in canine macrophage cell line DH82, lipopolysaccharide (LPS) upregulated the expression of genes associated with inflammation and pruritic responses through activating calcium and interleukin-31 (IL-31) signaling, and the upregulation could be suppressed by ovalicin, with an effect significantly stronger than dexamethasone. Ovalicin also reduced the expression of IL-31 downstream genes, including(Janus kinase 2),(transient receptor potential vanilloid receptor-1), and(histamine receptor H2). Ovalicin significantly alleviated the allergic symptoms in the AD mouse model. Histologically, the number of macrophages and mast cells infiltrated in the dermis was significantly reduced by ovalicin treatment. In the skin tissue of AD mice, reduction of IL-31 receptor was observed in the ovalicin treated group compared to the group without ovalicin treatment. To our knowledge, this is the first study to elucidate the anti-atopic mechanism of ovalicin, which could be an alternative to steroidal drugs commonly used for AD treatment.

Study Type : In Vitro Study

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Sayer Ji
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