METHODS FOR TREATING NEURAL CELL SWELLING
    4.
    发明申请
    METHODS FOR TREATING NEURAL CELL SWELLING 有权
    治疗神经细胞凋亡的方法

    公开(公告)号:US20140235564A1

    公开(公告)日:2014-08-21

    申请号:US14184947

    申请日:2014-02-20

    Abstract: A composition comprising a novel Ca2+-activated, [ATP]i-sensitive nonspecific cation (NCCa-ATP) channel is described. The channel is found in mammalian neural cells and exhibits a different sensitivity to block by various adenine nucleotides, and is activated by submicromolar [Ca]i. The NCCa-ATP channel is activated under conditions of ATP depletion, which causes severe cell depolarization, followed by cell swelling. The NCCa-ATP channel is regulated by a sulfonylurea receptor and is inhibited by sulfonylurea compounds glibenclamide and tolbutamide. Methods employing compositions comprising the NCCa-ATP channel to screen for compounds that block the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described. In addition, methods employing compositions comprising the Kir2.3 channel to screen for compounds that open the channel and the use of such antagonists as therapeutics in preventing brain swelling and damage are described.

    Abstract translation: 描述了包含新型Ca 2+活化的[ATP] i敏感性非特异性阳离子(NCCa-ATP)通道的组合物。 该通道存在于哺乳动物神经细胞中,表现出不同的腺嘌呤核苷酸的阻断灵敏度,并被亚微摩尔[Ca] i激活。 NCCa-ATP通道在ATP耗尽的条件下被激活,这导致严重的细胞去极化,随后是细胞肿胀。 NCCa-ATP通道受磺酰脲受体调节,被磺酰脲类化合物格列本脲和甲苯磺丁脲抑制。 描述了使用包含NCCa-ATP通道的组合物筛选阻断通道的化合物和使用这种拮抗剂作为治疗剂以防止脑肿胀和损伤的方法。 此外,描述了使用包含Kir2.3通道的组合物筛选开放通道的化合物的方法,以及使用这种拮抗剂作为治疗剂以防止脑肿胀和损伤的方法。

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