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PI3K/Akt 信号通路与氧化应激引起的细胞凋亡密切相                       [ 8 ]  ZHANG G,GHOSH S. Molecular mechanisms of NF-κB
          关,激活 PI3K/Akt 信号通路可以抑制细胞凋亡,促进神                          activation induced by bacterial lipopolysaccharide through
          经元存活,从而抑制神经元的可塑性               [17―18] 。本研究结果           Toll-like  receptors[J].  J  Endotoxin  Res,2000,6(6):
          表明,Cel 及其衍生物可降低 LPS 诱导后 BV2 细胞培养                        453-457.
                                                             [ 9 ]  XICOY H,WIERINGA B,MARTENS G J M. The SH-
          液中NO含量及TNF-α、IL-1β、IL-6含量,说明其发挥神
                                                                  SY5Y cell line in Parkinson’s disease research:a systematic
          经保护作用可能与减轻神经炎症反应有关;此外,Cel及
                                                                  review[J]. Mol Neurodegener,2017,12(1):10.
          其衍生物还可逆转H2O2诱导的SH-SY5Y细胞存活率降
                                                             [10]  LOPEZ-SUAREZ  L,AWABDH  S  A,COUMOUL  X,
          低的现象,其中Cel-2的神经保护活性最强。因此,本研
                                                                  et al. The SH-SY5Y human neuroblastoma cell line,a rele-
          究以 Cel-2 为研究对象,进一步检测其对凋亡相关蛋白                            vant in vitro cell model for investigating neurotoxicology
          表达的影响。结果显示,Cel-2 可升高 H2O2 诱导 SH-                        in human:focus on organic pollutants[J]. Neurotoxicology,
          SY5Y细胞中Bcl-2蛋白表达水平及PI3K、Akt蛋白的磷                         2022,92:131-155.
          酸化水平,降低Bax、caspase-3蛋白表达水平。                        [11]  DHEEN S T,KAUR C,LING E G. Microglial activation
              综上所述,Cel 及其衍生物 Cel-1、Cel-2 均具有一定                    and  its  implications  in  the  brain  diseases[J].  Curr  Med
          的神经保护活性,且以Cel-2的活性最强。Cel-2的神经                           Chem,2007,14(11):1189-1197.
          保护作用机制可能与调控PI3K/Akt、caspase-3/Bcl-2/Bax            [12]  TIAN  W  S,ZHAO  J,LEE  J  H,et  al.  Neuroprotective
          信号通路,减轻炎症反应、氧化应激损伤,抑制神经细胞                               effects of Cornus officinalis on stress-induced hippocampal
          凋亡有关。但本研究目前仅局限于体外模型,这些活性                                deficits in rats and H2O2-induced neurotoxicity in SH-SY5Y
                                                                  neuroblastoma cells[J]. Antioxidants,2019,9(1):27.
          化合物的具体作用机制尚需进一步通过动物实验加以
                                                             [13]  WYSS-CORAY  T. Ageing,neurodegeneration  and  brain
          验证。
                                                                  rejuvenation[J].Nature,2016,539(7628):180-186.
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          中国药房  2024年第35卷第5期                                                 China Pharmacy  2024 Vol. 35  No. 5    · 541 ·
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