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Review
. 2023 Apr;60(4):2062-2069.
doi: 10.1007/s12035-022-03197-4. Epub 2023 Jan 4.

Therapeutic Potentials of MicroRNA-126 in Cerebral Ischemia

Vahid Ebrahimi  1 , Seyed Hamidreza Rastegar-Moghaddam  2 , Abbas Mohammadipour  3   4
Affiliations
Review

Therapeutic Potentials of MicroRNA-126 in Cerebral Ischemia

Vahid Ebrahimi et al. Mol Neurobiol. 2023 Apr.

Abstract

Stroke is a leading cause of death and disability worldwide. It is among the most common neurological disorders with an 8-10% lifetime risk. Ischemic stroke accounts for about 85% of all strokes and damages the brain tissue via various damaging mechanisms. Following cerebral ischemia, the disrupted blood-brain barrier (BBB) leads to cerebral edema formation caused by activation of oxidative stress, inflammation, and apoptosis, targeting primarily endothelial cells. Activation of the protective mechanisms might favor fewer damages to the neural tissue. MicroRNA (miR)-126 is an endothelial cell-specific miR involved in angiogenesis. MiR-126 orchestrates endothelial progenitor cell functions under hypoxic conditions and could inhibit ischemia-induced oxidative stress and inflammation. It alleviates the BBB disruption by preventing an augment in matrix metalloproteinase level and halting the decrease in the junctional proteins, including zonula occludens-1 (ZO-1), claudin-5, and occludin levels. Moreover, miR-126 enhances post-stroke angiogenesis and neurogenesis. This work provides a therapeutic perspective for miR-126 as a new approach to treating cerebral ischemia.

Keywords: BBB disruption; Endothelial cells; MiR-126, RNA therapeutics; Stroke.

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