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Circular RNAs as Potential Blood Biomarkers in Amyotrophic Lateral Sclerosis.


ABSTRACT: Circular RNAs (circRNAs) are emerging as a novel, yet powerful player in many human diseases. They are involved in several cellular processes and are becoming a noteworthy type of biomarkers. Among other functions, circRNAs can serve as RNA sponges or as scaffolds for RNA-binding proteins. Here, we investigated a microarray expression profile of circRNAs in leukocyte samples from ALS patients and age- and sex-matched healthy controls to identify differentially expressed circRNAs. We selected 10 of them for a qPCR validation of expression on a larger set of samples, identification of their associations with clinical parameters, and evaluation of their diagnostic potential. In total, expression of 7/10 circRNAs was significant in a larger cohort of ALS patients, compared with age- and sex-matched healthy controls. Three of them (hsa_circ_0023919, hsa_circ_0063411, and hsa_circ_0088036) showed the same regulation as in microarray results. These three circRNAs also had AUC >?0.95, and sensitivity and specificity for the optimal threshold point >?90%, showing their potential for using them as diagnostic biomarkers.

SUBMITTER: Dolinar A 

PROVIDER: S-EPMC6834740 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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Circular RNAs as Potential Blood Biomarkers in Amyotrophic Lateral Sclerosis.

Dolinar Ana A   Koritnik Blaž B   Glavač Damjan D   Ravnik-Glavač Metka M  

Molecular neurobiology 20190607 12


Circular RNAs (circRNAs) are emerging as a novel, yet powerful player in many human diseases. They are involved in several cellular processes and are becoming a noteworthy type of biomarkers. Among other functions, circRNAs can serve as RNA sponges or as scaffolds for RNA-binding proteins. Here, we investigated a microarray expression profile of circRNAs in leukocyte samples from ALS patients and age- and sex-matched healthy controls to identify differentially expressed circRNAs. We selected 10  ...[more]

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