Journal
CURRENT NEUROPHARMACOLOGY
Volume 18, Issue 12, Pages 1180-1186Publisher
BENTHAM SCIENCE PUBL LTD
DOI: 10.2174/1570159X18666200429004242
Keywords
Hypoxic ischemia encephalopathy (HIE); ischemic stroke; miRNA; BBB disruption; MMP; tight junction; neural inflammation
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Funding
- NIH from NINDS [1R01NS11240401]
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Hypoxic-ischemic (HI) brain injury is a leading cause of acute mortality and chronic disability in newborns. Current evidence shows that cerebral microvascular response and compromised blood-brain barrier (BBB) integrity occur rapidly and could primarily be responsible for the brain injury observed in many infants with HI brain injury. MicroRNAs (miRNAs) are a type of highly conserved non-coding RNAs (ncRNAs), which consist of 21-25 nucleotides in length and usually lead to suppression of target gene expression. Growing evidence has revealed that brainenriched miRNAs act as versatile regulators of BBB dysfunctions in various neurological disorders including neonatal HI brain injury. In the present review, we summarize the current findings regarding the role of miRNAs in BBB impairment after hypoxia/ischemia brain injury. Specifically, we focus on the recent progress of miRNAs in the pathologies of neonatal HI brain injury. These findings can not only deepen our understanding of the role of miRNAs in BBB impairment in HI brain injury, but also provide insight into the development of new therapeutic strategies for preservation of BBB integrity under pathological conditions.
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