Scientists at the University of Eastern Finland and the University of Oxford have shown that small RNA molecules occurring naturally in cells, i.e. microRNAs, are also abundant in cell nuclei. Previously, microRNAs were mainly thought to be found in cytoplasm. The scientists also discovered that microRNA concentrations in cell nuclei change as a result of hypoxia. The findings strongly suggest that microRNAs play a role in the expression of genes in the cell nucleus. This observation is crucial for the development of novel gene therapy, among other things. The study was published in Scientific Reports today.
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Source: Phys.org