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.
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Authors | Yuka Oshikawa, Masatoshi Jinnin, Takamitsu Makino, Ikko Kajihara, Katsunari Makino, Noritoshi Honda, Wakana Nakayama, Kuniko Inoue, Satoshi Fukushima, Hironobu Ihn |
Journal | Acta dermato-venereologica
(Acta Derm Venereol)
Vol. 93
Issue 3
Pg. 273-6
(May 2013)
ISSN: 1651-2057 [Electronic] Sweden |
PMID | 23007163
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Chemical References |
- Genetic Markers
- MIRN7 microRNA, human
- MicroRNAs
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Topics |
- Case-Control Studies
- Dermatomyositis
(blood, genetics)
- Down-Regulation
- Gene Expression Profiling
(methods)
- Genetic Markers
- Humans
- MicroRNAs
(analysis, blood)
- Oligonucleotide Array Sequence Analysis
- Prognosis
- Real-Time Polymerase Chain Reaction
- Reverse Transcriptase Polymerase Chain Reaction
- Skin
(chemistry)
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