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The effect of Na(+)/H(+) exchanger-1 inhibition by sabiporide on blood-brain barrier dysfunction after ischemia/hypoxia in vivo and in vitro.

Authors: Park, SL  Lee, DH  Yoo, SE  Jung, YS 
Citation: Park SL, etal., Brain Res. 2010 Dec 17;1366:189-96. Epub 2010 Sep 29.
Pubmed: (View Article at PubMed) PMID:20883671
DOI: Full-text: DOI:10.1016/j.brainres.2010.09.077

In the present study, we investigated the effects of sabiporide, a specific NHE-1 inhibitor, on blood-brain barrier (BBB) endothelial dysfunction during ischemia/hypoxia in rat cerebral ischemia in vivo and bEnd.3 cells in vitro. Sabiporide significantly attenuated ischemia/hypoxia-induced BBB hyperpermeability and disruption of occludin and zonula occludens-1 both in vivo and in vitro. Sabiporide also inhibited the hypoxia-induced increase in [Ca(2+)](i) in bEnd.3 cells. Taken together, the protective effect of sabiporide on BBB permeability may be mediated through maintaining tight junction integrity and associated with its inhibitory effect on [Ca(2+)](i) overload under hypoxia. These results suggest that the BBB protective effect of sabiporide may be of therapeutical benefit in brain injury after an ischemic stroke.

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RGD Object Information
RGD ID: 6771331
Created: 2012-07-26
Species: All species
Last Modified: 2012-07-26
Status: ACTIVE



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RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.