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| Content Provider | Springer Nature Link |
|---|---|
| Author | Wang, Tao Chen, Xiping Wang, Zufeng Zhang, Mingyang Meng, Huanhuan Gao, Yuan Luo, Bin Tao, Luyang Chen, Yijiu |
| Copyright Year | 2014 |
| Abstract | Blood–brain barrier (BBB) disruption and brain edema formation play important roles in the secondary neuronal death and neurological dysfunction induced by intracerebral hemorrhage (ICH). Poloxamer 188 (P188), a multiblock copolymer surfactant, has been shown to be capable of sealing damaged cell membranes and decrease neuronal cell death. In this study, we explored whether P188 had a protective effect against ICH and its underlying mechanisms. Male ICR mice were subjected to infusion of type IV collagenase (to induce ICH) of saline (for shams) into the left striatum. The results showed that P188-12 mg post-treatment by tail intravenous injection significantly ameliorated the neurological symptoms and brain edema, attenuated BBB permeability, and decreased cell insults and injury volume at 24 and 72 h after ICH. Furthermore, P188 maintained the protein levels of tight junction (TJ) proteins including claudin-5, occludin, and zonula occludens-1, and reversed the increases of nuclear factor-kappaB (NF-κB), matrix metalloproteinase (MMP)-2, and MMP-9 protein expression at 72 h post ICH. Immunofluorescence showed P188 treatment rearranged the structure of TJ proteins in a continuous and linear pattern. Therefore, the present study concludes that P188 can protect against ICH, and the protective effect was associated with preventing BBB disruption through NF-κB-MMPs-mediated TJ proteins degradation. |
| Starting Page | 240 |
| Ending Page | 250 |
| Page Count | 11 |
| File Format | |
| ISSN | 08958696 |
| Journal | Journal of Molecular Neuroscience |
| Volume Number | 55 |
| Issue Number | 1 |
| e-ISSN | 15591166 |
| Language | English |
| Publisher | Springer US |
| Publisher Date | 2014-04-29 |
| Publisher Place | Boston |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Intracerebral hemorrhage Poloxamer 188 Blood–brain barrier Matrix metalloproteinases Tight junction Neurosciences Neurochemistry Cell Biology Proteomics Neurology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Cellular and Molecular Neuroscience |
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