Transcriptional profiling identifies differential expression of long non-coding RNAs in Jo-1 associated and inclusion body myositis

Philip D Hamann, Benoit T Roux, James A Heward, Seth Love, Neil J McHugh, Simon W Jones, Mark A Lindsay

Research output: Contribution to journalArticle

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Abstract

Myositis is characterised by muscle inflammation and weakness. Although generally thought to be driven by a systemic autoimmune response, increasing evidence suggests that intrinsic changes in the muscle might also contribute to the pathogenesis. Long non-coding RNAs (lncRNAs) are a family of novel genes that regulate gene transcription and translation. To determine the potential role of lncRNAs, we employed next generation sequencing to examine the transcriptome in muscle biopsies obtained from two histologically distinct patient populations, inclusion body myositis (IBM) and anti-Jo-1-associated myositis (Jo-1). 1287 mRNAs and 1068 mRNAs were differentially expressed in the muscle from Jo-1 and IBM patients, respectively. Pathway analysis showed the top canonical pathway in both Jo-1 and IBM was oxidative phosphorylation and mitochondrial dysfunction. We identified 731 known and 325 novel lncRNAs in the muscles biopsies. Comparison with controls showed 55 and 46 lncRNAs were differentially expressed in IBM and Jo-1 myositis, respectively. Of these, 16 lncRNAs were differentially expressed in both IBM and Jo-1 myositis and included upregulated H19, lncMyoD and MALAT1. Given that these are known to regulate muscle proliferation and differentiation, we speculate that changes in lncRNAs might contribute to the phenotypic changes in Jo-1 and IBM myositis.

LanguageEnglish
Article number8024
JournalScientific Reports
Volume7
Issue number1
DOIs
StatusPublished - 14 Aug 2017

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Inclusion Body Myositis
Long Noncoding RNA
Myositis
Muscles
Biopsy
Messenger RNA
Oxidative Phosphorylation
Muscle Weakness
Autoimmunity
Transcriptome
Genes
Inflammation
Population

Keywords

  • Journal Article

Cite this

Transcriptional profiling identifies differential expression of long non-coding RNAs in Jo-1 associated and inclusion body myositis. / Hamann, Philip D; Roux, Benoit T; Heward, James A; Love, Seth; McHugh, Neil J; Jones, Simon W; Lindsay, Mark A.

In: Scientific Reports, Vol. 7, No. 1, 8024, 14.08.2017.

Research output: Contribution to journalArticle

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