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Ischemic stroke (IS) is one of the most common causes of death and disability worldwide. Despite its prevalence, knowledge about pathophysiology and diagnostic methods remains limited. Extracellular vesicles (EVs) that are released from cellular membranes constitutively, as well as after activation or damage, may contain various intracellular particles, including microRNAs (miRNAs/miR). miRNAs acting as mRNA transcription regulators are secreted in EVs and may be internalized by other cells. This cellular cross-talk is important for the regeneration of the nervous tissue after ischemic injury. Moreover, miRNAs related to stroke pathophysiology were shown to be differentially expressed after an IS episode. miRNAs associated with various types of stem cell-derived EVs were shown to be involved in post-ischemic neuroprotection and tissue regeneration and may be potential therapeutic agents. Therefore, considering their stability in plasma, they are worth investigating also as potential diagnostic/prognostic biomarkers. The present review summarizes the current knowledge about EV-derived miRNAs in the neuronal injury mechanism and their potential in neuroprotection in IS, and discusses the possibilities of further investigation of their use in preclinical research.
Eyileten et al. (Mon,) studied this question.
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