| Title |
microRNA-21 Confers Neuroprotection Against Cerebral Ischemia-Reperfusion Injury and Alleviates Blood-Brain Barrier Disruption in Rats via the MAPK Signaling Pathway
|
|---|---|
| Published in |
Journal of Molecular Neuroscience, April 2018
|
| DOI | 10.1007/s12031-018-1067-5 |
| Pubmed ID | |
| Authors |
Xiaofeng Yao, Yahui Wang, Dongya Zhang |
| Abstract |
The mechanism contributing to blood-brain barrier (BBB) disruption, involved in poststroke edema and hemorrhagic transformation, is important but elusive. We investigated microRNA-21 (miR-21)-mediated mechanism in the disruption of BBB following cerebral ischemia-reperfusion (I/R) injury. Rats with cerebral I/R injury were prepared after middle cerebral artery occlusion and subsequent reperfusion. The underlying regulatory mechanisms of miR-382 were investigated with treatment of miR-382 mimics, miR-382 inhibitors, or SB203580 (an inhibitor of the MAPK signaling pathway) prior to I/R modeling. Compared with sham-operated rats, rats following I/R showed increased Longa's scores, ischemic hemisphere volume, cerebral infarct volume, EB content in brain tissues, enhanced levels of p38, iNOS, and MMP-9. The ectopic expression of miR-21 by mimics and MAPK signaling inhibition by SB203580 reduced Longa's scores, ischemic hemisphere volume, cerebral infarct volume, EB content in brain tissues, decreased levels of p38, MAP2K3, iNOS, and MMP-9. The luciferase activity determination showed miR-21 bound to MAP2K3 in its 3'UTR. miR-21 downregulation mediated by inhibitors appeared to yield an opposed trend. We also found that MAPK signaling inhibition by SB203580 could rescue rats with treatment of miR-382 inhibitors. The study highlights the neuroprotective role of MiR-21 during cerebral I/R injury and its preventive effect against BBB disruption by blocking the MAPK signaling pathway via targeted inhibition of MAP2K3, potentially opening a novel therapeutic avenue for the treatment of cerebral ischemia. |
X Demographics
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Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 1 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 27 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 27 | 100% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 6 | 22% |
| Student > Master | 3 | 11% |
| Student > Postgraduate | 3 | 11% |
| Researcher | 2 | 7% |
| Student > Bachelor | 2 | 7% |
| Other | 3 | 11% |
| Unknown | 8 | 30% |
| Readers by discipline | Count | As % |
|---|---|---|
| Neuroscience | 9 | 33% |
| Biochemistry, Genetics and Molecular Biology | 3 | 11% |
| Medicine and Dentistry | 2 | 7% |
| Agricultural and Biological Sciences | 1 | 4% |
| Unspecified | 1 | 4% |
| Other | 2 | 7% |
| Unknown | 9 | 33% |
Attention Score in Context
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#20,663,600
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Outputs from Journal of Molecular Neuroscience
#1,156
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#265,430
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Outputs of similar age from Journal of Molecular Neuroscience
#20
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