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红花多糖调节Gas6/Axl信号通路对大鼠缺血性脑卒中的影响
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                                   1 #
          陈彩凤 ,陆韵薇 ,李建宇 (1.解放军总医院第五医学中心中医科,北京 100039;2.深圳市中医院脑病与
                 1*
                          2
          心理病科,广东 深圳 518000)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2026)08-1015-06
          DOI  10.6039/j.issn.1001-0408.2026.08.08

          摘  要  目的  探讨红花多糖(SPS)调节生长停滞特异性蛋白6(Gas6)/Axl受体酪氨酸激酶(简称为“Axl”)信号通路对大鼠缺血
          性脑卒中(IS)的影响。方法  采用改良线栓法构建大脑中动脉闭塞IS模型大鼠,再随机分为模型(Model)组,SPS低、高剂量(SPS-
          L、SPS-H,50、100 mg/kg)组、中西药结合(SPS-H+Nim,SPS 100 mg/kg+ Nim 15 mg/kg)组,每组10只。另取10只大鼠作为假手术
         (Sham)组。各组大鼠灌胃相应剂量的药物或等体积生理盐水,连续干预14 d。给药结束后24 h,评估各组大鼠的神经功能;观察
          海马组织形态学变化,检测血清中白细胞介素6(IL-6)、IL-1β、肿瘤坏死因子α(TNF-α)含量,脑梗死面积百分比,神经元凋亡率和
          海马组织中丙二醛(MDA)、超氧化物歧化酶(SOD)、脑源性神经营养因子(BDNF)含量以及Gas6、磷酸化Axl(p-Axl)、Axl、B细胞
          淋巴瘤2(Bcl-2)、Bcl-2相关X蛋白(Bax)的蛋白相对表达量。结果  与Model组比较,SPS-L组、SPS-H组和SPS-H+Nim组大鼠神
          经功能显著改善;血清中IL-6、TNF-α、IL-1β含量和脑梗死面积百分比、神经元凋亡率以及海马组织中MDA含量、p-Axl及Bax蛋
          白相对表达量均显著降低(P<0.05 或 P<0.01),海马组织中 SOD、BDNF 含量,Gas6、Axl 及 Bcl-2 蛋白相对表达量均显著升高
         (P<0.05或P<0.01);海马组织缺血性损伤均有不同程度改善。结论  SPS可能通过激活Gas6/Axl信号通路,降低IS大鼠神经炎
          症、氧化应激和神经元凋亡,减轻神经损伤,改善神经功能。
          关键词  缺血性脑卒中;红花多糖;Gas6/Axl信号通路;神经炎症;神经元凋亡

          Effects of safflower polysaccharide on ischemic stroke in rats by regulating the Gas6/Axl signaling pathway
          CHEN Caifeng ,LU Yunwei ,LI Jianyu(1.  Dept.  of Traditional  Chinese  Medicine,  Fifth  Medical  Center  of  the
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                       1
                                   2
          General  Hospital  of  the  Chinese  People’s  Liberation Army,  Beijing  100039,  China;2.  Dept.  of  Neurology  and
          Psychiatry, Shenzhen Traditional Chinese Medicine Hospital, Guangdong Shenzhen 518000, China)
          ABSTRACT   OBJECTIVE  To  investigate  the  effects  of  safflower  polysaccharide (SPS)  on  ischemic  stroke (IS)  in  rats  by
          regulating  the  growth  arrest-specific  protein  6 (Gas6)/Axl  receptor  tyrosine  kinase (Axl)  signaling  pathway.  METHODS  The
          modified  suture-occluded  method  was  employed  to  establish  a  rat  model  of  middle  cerebral  artery  occlusion (MCAO)  for  IS. The
          rats  were  then  randomly  divided  into  the  model (Model)  group,  SPS  low-  and  high-dose (SPS-L,  SPS-H,  50  and  100  mg/kg)
          groups,  and  integrated  traditional  Chinese  and  Western  medicine (SPS-H+Nim,  SPS  100  mg/kg+Nim  15  mg/kg)  group,  with  10
          rats  in  each  group.  Another  10  rats  were  selected  as  the  sham  operation (Sham)  group.  Rats  in  each  group  were  administered
          corresponding  doses  of  medication  or  an  equal  volume  of  normal  saline  intragastrically,  with  continuous  intervention  for  14  days.
          The  neurological  function  of  rats  in  each  group  was  evaluated  24  hours  after  drug  administration.  The  morphological  changes  in
          hippocampal  tissue  were  observed. The  contents  of  interleukin-6 (IL-6),  IL-1β,  and  tumor  necrosis  factor-α (TNF-α)  in  serum,
          the  percentage  of  cerebral  infarction  area,  the  neuronal  apoptosis  rate,  as  well  as  the  contents  of  malondialdehyde (MDA),
          superoxide  dismutase (SOD),  and  brain-derived  neurotrophic  factor (BDNF)  in  hippocampal  tissue,  and  the  relative  protein
          expression levels of Gas6, phosphorylated Axl (p-Axl), Axl, B-cell lymphoma-2 (Bcl-2), and Bcl-2 associated X protein (Bax)
          were measured. RESULTS Compared with Model group, the neurological function of rats in SPS-L group, SPS-H group and SPS-
          H+Nim group improved significantly, while serum contents of IL-6, TNF-α, and IL-1β, the percentage of cerebral infarction area,
          the apoptotic rate of neurons as well as MDA content and relative protein expression of p-Axl and Bax were decreased significantly
         (P<0.05  or  P<0.01).  The  contents  of  SOD  and  BDNF,  as  well  as  the  relative  protein  expression  of  Gas6, Axl,  and  Bcl-2  in
          hippocampal tissue, were significantly increased (P<0.05 or P<0.01), and the ischemic injury in hippocampal tissue improved to
          varying degrees. CONCLUSIONS SPS can reduce neuroinflammation, oxidative stress, and neuronal apoptosis in IS rats, alleviate
                                                             nerve  injury,  and  improve  neurological  function,  which  may
             Δ 基金项目 北京市自然科学基金-首都医学创新联合基金项目
                                                             be achieved by activating the Gas6/Axl signaling pathway.
         (No.L2510007);深圳市科技计划项目(No.JCYJ20230807094817035)   KEYWORDS
             *第一作者 主治医师,硕士。研究方向:中医内科、脑血管疾病。                               ischemic  stroke;  safflower  polysaccharide;
          E-mail:drcindy79_2025@163.com                      Gas6/Axl  signaling  pathway;  neuroinflammation;  neuronal
             # 通信作者 副主任医师,硕士。研究方向:中医内科、针灸镇痛。                 apoptosis
          E-mail:lijiananjing@sina.com


          中国药房  2026年第37卷第8期                                                China Pharmacy  2026 Vol. 37  No. 8    · 1015 ·
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