期刊
CNS NEUROSCIENCE & THERAPEUTICS
卷 21, 期 4, 页码 385-391出版社
WILEY
DOI: 10.1111/cns.12326
关键词
CD36; Inflammation; Permanent focal ischemia; SS-31; Transient focal ischemia
资金
- NIH [HL82511, NS07396]
- Burke Foundation
AimsThe pathology of stroke consists of multiple pro-death processes, and CD36 has been suggested as a multimodal target to reduce oxidative stress and inflammation in ischemic stroke. Using CD36-deficient mice and SS-31, a cell permeable tetrapeptide known to down-regulate CD36 pathways, the current study investigated whether targeting CD36 is effective in transient and permanent ischemic stroke. MethodsWild-type or CD36-deficient mice were subjected to either 30-min transient or permanent focal ischemic stroke. In parallel, a cohort of mice subjected to either transient or permanent stroke received either vehicle or 5mg/kg of SS-31. Monocyte chemoattractant protein-1 (MCP-1) and its receptor CCR2, mRNA levels, and infarct volume and percent hemispheric swelling were measured in the postischemic brain. ResultsCD36 deficiency or SS-31 treatment significantly attenuated MCP-1 or CCR2 mRNA up-regulation and injury size in the transient ischemic stroke. However, the approaches failed to show the protective effect in permanent ischemic stroke. ConclusionThe study revealed that targeting CD36 has a beneficial effect on transient but not permanent focal ischemic stroke. The study thus precludes a generalized strategy targeting CD36 in ischemic stroke and suggests careful consideration of types of stroke and associated pathology in developing stroke therapies.
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