期刊
JOURNAL OF NEUROCHEMISTRY
卷 129, 期 5, 页码 877-883出版社
WILEY
DOI: 10.1111/jnc.12662
关键词
biomarker; child; Duchenne muscular dystrophy; microRNA; serum
资金
- Children's Hospital, Chongqing Medical University
- Research Project of Chongqing Municipal Health Bureau [2012-1-044]
- Youth Research Project of Fujian Provincial Health Bureau [2009-2-22]
Creatine kinase has been utilized as a diagnostic marker for Duchenne muscular dystrophy (DMD), but it correlates less well with the DMD pathological progression. In this study, we hypothesized that muscle-specific microRNAs (miR-1, -133, and -206) in serum may be useful for monitoring the DMD pathological progression, and explored the possibility of these miRNAs as potential non-invasive biomarkers for the disease. By using real-time quantitative reverse transcription-polymerase chain reaction in a randomized and controlled trial, we detected that miR-1, -133, and -206 were significantly over-expressed in the serum of 39 children with DMD (up to 3.201.20, 2(-Delta Delta Ct)): almost 2- to 4-fold enriched in comparison to samples from the healthy controls (less than 1.15 +/- 0.34, 2(-Delta Delta Ct)). To determine whether these miRNAs were related to the clinical features of children with DMD, we analyzed the associations compared to creatine kinase. There were very good inverse correlations between the levels of these miRNAs, especially miR-206, and functional performances: high levels corresponded to low muscle strength, muscle function, and quality of life. Moreover, by receiver operating characteristic curves analyses, we revealed that these miRNAs, especially miR-206, were able to discriminate DMD from controls. Thus, miR-206 and other muscle-specific miRNAs in serum are useful for monitoring the DMD pathological progression, and hence as potential non-invasive biomarkers for the disease.
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