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Updated: Aug 17, 2026
Remote Limb Ischemic Preconditioning: A Neuroprotective Technique in Rodents
Published on: June 2, 2015
Exploring the protective potential of remote ischemic conditioning-induced miRNAs in stroke
Lara Marziani1, Katrine Tang Stenz2, Hao Zhang3
1Center of Functionally Integrative Neuroscience, Department of Clinical Medicine, Aarhus University, DK-8000 Aarhus, Denmark; Sino-Danish College (SDC), University of Chinese Academy Sciences, Beijing, China; Sino-Danish Centre for Education and Research, Beijing, China; Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 050049 Beijing, China.
Abstract:
Remote ischemic conditioning (RIC) is a non-invasive strategy that mitigates ischemic injury, partly through circulating microRNAs. Emerging evidence suggests that miRNAs may modulate angiogenesis, which is essential for post-stroke recovery. This study investigated the effect of four RIC-induced miRNAs (RIC-miRNAs), miR-16-5p, miR-144-3p, miR-182-5p, and miR-451a, in immortalized human brain microvascular endothelial cells (IM-HBMECs) exposed to inflammatory conditions in vitro. Transcriptomic and in silico analysis were used to identify target genes of RIC-miRNAs. Two angiogenesis-related genes, SLIT2 and TEK, were validated in vitro. as functional targets of miR-16-5p and miR-144-3p, respectively. Rare variant burden analyses in UK Biobank data associated TEK variants with reduced ischemic stroke risk and regulatory SLIT2 variants with increased stroke risk. Functional enrichment analysis further linked the RIC-miRNA-associated targets to the regulation of apoptotic processes, cytokine production, and sprouting angiogenesis. These findings suggest that miR-16-5p and miR-144-3p may modulate endothelial pathways involved in cell death, inflammatory signaling, and vascular remodeling during the response to stroke.
Insights
Remote ischemic conditioning (RIC) uses microRNAs to reduce stroke injury. Specific RIC-induced microRNAs, miR-16-5p and miR-144-3p, target genes involved in blood vessel repair and inflammation.
Area of Science:
- Neuroscience
- Molecular Biology
- Vascular Biology
Background:
- Remote ischemic conditioning (RIC) is a protective strategy against ischemic injury.
- MicroRNAs (miRNAs) are implicated in post-stroke recovery, particularly in regulating angiogenesis.
- Understanding RIC-induced miRNAs is crucial for developing novel stroke therapies.
Purpose of the Study:
- To investigate the role of four RIC-induced miRNAs (miR-16-5p, miR-144-3p, miR-182-5p, miR-451a) in brain endothelial cells under inflammatory conditions.
- To identify functional targets of these RIC-miRNAs involved in angiogenesis and stroke response.
- To elucidate the mechanisms by which RIC-miRNAs influence endothelial cell function.
Main Methods:
- In vitro study using immortalized human brain microvascular endothelial cells (IM-HBMECs).
- Exposure of cells to inflammatory conditions.
- Transcriptomic and in silico analysis to identify miRNA targets.
- In vitro validation of gene targets (SLIT2 and TEK) for miR-16-5p and miR-144-3p.
- Functional enrichment analysis.
Main Results:
- miR-16-5p and miR-144-3p were identified as key RIC-miRNAs affecting endothelial cells.
- SLIT2 was validated as a functional target of miR-16-5p, and TEK as a target of miR-144-3p.
- RIC-miRNA targets are linked to apoptosis, cytokine production, and sprouting angiogenesis.
- miR-16-5p and miR-144-3p modulate endothelial pathways critical for stroke recovery.
Conclusions:
- miR-16-5p and miR-144-3p play significant roles in regulating endothelial cell responses to inflammation and injury.
- These miRNAs influence key processes such as cell death, inflammatory signaling, and vascular remodeling.
- Findings suggest therapeutic potential for RIC-miRNAs in mitigating stroke-induced damage and promoting recovery.
