Abstract：
PURPOSE:To investigate the brain protective effects of fingolimod on inflammatory response of SAH mice. METHODS:We utilized an endovascular mouse perforation model of SAH. Mice were divided into three groups: sham group, SAH group and SAH + Fingolimod group. Mice received either saline or fingolimod (1 mg/kg) intraperitoneally 2 h after sham surgery or SAH. The modified neurological severity score (mNSS) and Morris water maze were respectively used to evaluate the influence of nerve function. Evens blue (EB) extravasation was used to detect the permeability of blood-brain barrier, and water content in brain tissue was also detected. Flow cytometry, ELISA kits and western blotting were used to detect inflammatory factors in brain tissue. RESULTS:The results showed that compared with SAH group, after treatment, the delay time of locating the hidden platform was shorter. The mNSS results showed that fingolimod improved the behavior of SAH mice. In addition, fingolimod could reduce the water content in brain. Flow cytometry results showed that after 3 d of treatment, fingolimod significantly increased Treg cells and down-regulated NK cells. Western blotting results showed fingolimod inhibited the expression of inflammatory cytokines in brain tissue. ELISA kit results showed that fingolimod could down-regulate IL-6 and TNF-α and up-regulate IL-10 and TGF-β1 in serum. CONCLUSIONS:Fingolimod could regulate the inflammatory response to alleviate SAH-induced brain damage and promote neurological recovery, which provides a new therapeutic strategy for SAH treatment.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Wang Y,Zhou S,Han Z,Yin D,Luo Y,Tian Y,Wang Z,Zhang Jdoi
10.1016/j.neulet.2020.135250subject
Has Abstractpub_date
2020-09-25 00:00:00pages
135250eissn
0304-3940issn
1872-7972pii
S0304-3940(20)30520-6journal_volume
736pub_type
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