Accessible miRNAs as Novel Toxicity Biomarkers
Wendy J Bailey1, Warren E Glaab1
11 Merck & Co., Inc., West Point, PA, USA.
International Journal of Toxicology
|January 24, 2018
Summary
Novel microRNAs (miRNAs) show promise as sensitive and specific biomarkers for monitoring drug-induced tissue injury. These abundant, stable, and tissue-specific molecules are readily detectable in bodily fluids, offering an advancement over traditional safety biomarkers.
Area of Science:
- Biochemistry
- Molecular Biology
- Toxicology
Background:
- Traditional safety biomarkers for drug-induced tissue injury often lack sensitivity and specificity.
- Novel biomarkers are needed to accurately monitor tissue damage in organs like the liver, kidney, and skeletal muscle.
Purpose of the Study:
- To review the discovery and evolution of tissue-specific microRNAs (miRNAs) as novel toxicity biomarkers.
- To highlight the advantages of miRNAs over conventional safety biomarkers in detecting drug-induced tissue injury.
Main Methods:
- Literature review focusing on recent advancements in miRNA research for toxicity assessment.
- Analysis of miRNA characteristics, including abundance, tissue specificity, stability, and detectability in biofluids.
- Comparison of novel miRNA biomarkers with conventional safety biomarkers.
Main Results:
- MicroRNAs (miRNAs) are short, noncoding nucleic acids that regulate gene expression.
- miRNAs are highly abundant, tissue-specific, and stable in plasma, making them ideal biomarkers.
- These novel biomarkers demonstrate enhanced sensitivity and specificity for detecting drug-induced injury in various tissues.
Conclusions:
- Tissue-specific miRNAs represent a significant advancement in toxicity biomarker development.
- Their accessibility in blood, urine, and cerebrospinal fluid facilitates early detection of tissue injury.
- miRNAs offer superior or complementary value to existing safety biomarkers for drug-induced tissue damage monitoring.
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