TITLE

Decreased miR-7 Expression in the Skin and Sera of Patients with Dermatomyositis

AUTHOR(S)
OSHIKAWA, Yuka; JINNIN, Masatoshi; MAKINO, Takamitsu; KAJIHARA, Ikko; MAKINO, Katsunari; HONDA, Noritoshi; NAKAYAMA, Wakana; INOUE, Kuniko; FUKUSHIMA, Satoshi; IHN, Hironobu
PUB. DATE
May 2013
SOURCE
Acta Dermato-Venereologica;2013, Vol. 93 Issue 3, p273
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Expression of microRNA (miRNA) in the skin in dermatomyositis has not previously been studied in detail. In this study, we performed miRNA array analysis using miRNAs purified from dermatomyositis-involved skin and normal skin, and found that several miRNAs were up- or down-regulated in dermatomyositis skin. Among them, we focused on miR-7, one of the most down-regulated miRNAs in dermatomyositis skin. Total miRNAs were purified from serum, and hsa-miR-7 levels were measured with quantitative real-time PCR using the specific primer. Serum levels of miR-7 were significantly decreased in patients with dermatomyositis compared with normal subjects or patients with other autoimmune diseases. Thus, serum miR-7 levels might be a possible diagnostic marker for dermatomyositis. Clarifying the up- or down-stream events of down-regulated miR-7 in patients with dermatomyositis may lead to further understanding of the disease and a new therapeutic approach.
ACCESSION #
88010214

 

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