Related Experiment Videos
Profiling of Circulating Serum MicroRNAs in Children with Autism Spectrum Disorder using Stem-loop qRT-PCR Assay
Tatyana M Kichukova1, Nikolay T Popov2, Ivan S Ivanov3
1Department of Plant Physiology and Molecular Biology, The "Paisii Hilendarski" University of Plovdiv, 24 "Tzar Assen" St., 4000 Plovdiv.
Folia Medica
|April 7, 2017
Summary
This study reveals that specific microRNAs (miRNAs) in the blood show altered expression in children with autism spectrum disorder (ASD). These findings suggest that certain miRNAs could serve as potential biomarkers for diagnosing ASD.
Area of Science:
- Neuroscience
- Genetics
- Biochemistry
Background:
- Biomarker development for autism spectrum disorder (ASD) remains a significant challenge.
- Alterations in microRNA (miRNA) expression in peripheral blood and serum have been associated with ASD.
- Circulating miRNAs are secreted and can modulate cellular functions, suggesting their potential as diagnostic or prognostic biomarkers.
Purpose of the Study:
- To investigate differential expression profiles of circulating miRNAs in the serum of individuals with ASD compared to healthy controls.
- To identify specific miRNAs that may serve as potential biomarkers for ASD diagnosis.
Main Methods:
- Analysis of relative expression levels of 42 miRNAs using stem-loop quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay.
- Comparison of miRNA expression in serum samples from ASD patients and healthy control subjects.
Main Results:
- Eleven miRNAs exhibited significantly higher expression in ASD patients, while 29 miRNAs showed lower expression compared to controls.
- Target gene analysis indicated that altered serum miRNAs target key genes involved in calcium channel function (CACNA1C, CACNB1) and epigenetic processes (DICER).
Conclusions:
- Differentially expressed serum miRNAs are potentially involved in the molecular pathways of ASD.
- Specific miRNAs, including miR-424-5p, miR-197-5p, miR-328-3p, miR-500a-5p, miR-619-5p, miR-3135a, miR-664a-3p, and miR-365a-3p, show significant alterations and may serve as potential biomarkers for ASD in children.