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白花丹素对AECOPD大鼠炎症反应及氧化应激的影响及机制                                                                   Δ



          王亚茹 ,许佩佩 ,李士荣 (1.东南大学附属中大医院江北院区呼吸与危重症医学科,南京 210044;2.南京
                           2
                 1*
                                   1 #
          鼓楼医院血液科,南京 210008)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2025)18-2250-06
          DOI  10.6039/j.issn.1001-0408.2025.18.06

          摘   要  目的  基于Notch1/GATA3信号通路探究白花丹素对慢性阻塞性肺疾病急性加重期(AECOPD)大鼠炎症反应及氧化应激
          的影响及潜在机制。方法  随机选择10只大鼠,作为对照组;另取65只大鼠,通过吸入香烟烟雾+气管滴注内毒素+鼻腔给菌的方
          式构建 AECOPD 模型,并将造模成功的 50 只大鼠随机分为 AECOPD 组、白花丹素低剂量组(10 mg/kg)、白花丹素高剂量组(50
          mg/kg)、阳性对照组(地塞米松0.09 mg/kg)、白花丹素高剂量+Jagged1(Notch1激活剂)组(50 mg/kg+25 mg/kg),每组10只。各组
          大鼠灌胃和腹腔注射相应药液或生理盐水,每天1次,连续28 d。末次给药后,检测各组大鼠的肺功能指标(呼气流量峰值、0.3 s
          用力呼气容积与用力肺活量比值)、支气管肺泡灌洗液中的炎症细胞数(白细胞总数及淋巴细胞数、中性粒细胞数、巨噬细胞数)和
          炎症因子[白细胞介素6(IL-6)、IL-10、肿瘤坏死因子α(TNF-α)]水平以及肺组织中氧化应激指标[超氧化物歧化酶(SOD)、丙二醛
         (MDA)]含量,观察肺组织病理学变化并进行病理学评分,检测肺组织中黏蛋白5ac(Muc5ac)、Notch1、GATA3蛋白的表达情况。
          结果  与对照组比较,AECOPD 组大鼠肺泡壁结构严重受损,可见大量炎症细胞浸润,并伴有管壁增厚等病理学改变;肺功能指
          标、IL-10水平、SOD含量均显著降低;各炎症细胞数,IL-6、TNF-α水平,MDA含量,病理学评分,以及Muc5ac、Notch1、GATA3蛋
          白的表达均显著升高或上调(P<0.05);与AECOPD组比较,白花丹素各剂量组大鼠肺组织病理学变化均明显减轻,上述定量指标
          均显著改善,且高剂量组的改善更明显(P<0.05);Jagged1可显著逆转高剂量白花丹素对AECOPD大鼠肺损伤及相关指标的改善
          作用(P<0.05)。结论  白花丹素可抑制AECOPD大鼠肺部的炎症反应及氧化应激,减轻肺损伤,改善肺功能,上述作用可能与抑
          制Notch1/GATA3信号通路有关。
          关键词  白花丹素;慢性阻塞性肺疾病急性加重期;炎症反应;氧化应激;Notch1/GATA3信号通路


          Effects  and  mechanism  of  plumbagin  on  the  inflammatory  response  and  oxidative  stress  in  rats  with
          AECOPD
          WANG Yaru ,XU Peipei ,LI Shirong(1.  Dept.  of  Respiratory  and  Critical  Care  Medicine,  Jiangbei  Campus,
                     1
                                            1
                                2
          Zhongda Hospital Southeast University, Nanjing 210044, China;2. Dept. of Hematology, Nanjing Drum Tower
          Hospital, Nanjing 210008, China)
          ABSTRACT    OBJECTIVE  To  explore  the  effects  and  potential  mechanism  of  plumbagin  on  the  inflammatory  response  and
          oxidative  stress  in  rats  with  acute  exacerbation  of  chronic  obstructive  pulmonary  disease (AECOPD)  based  on  Notch1/GATA3
          signaling  pathway.  METHODS  Ten  rats  were  randomly  selected  as  the  control  group;  another  65  rats  were  used  to  establish  the
          AECOPD  model  by  inhaling  cigarette  smoke,  intratracheal  administration  of  endotoxin,  and  nasal  inoculation  of  bacteria.  The  50
          successfully  modeled  rats  were  randomly  divided  into  the  AECOPD  group,  plumbagin  low-dose  group (10  mg/kg),  plumbagin
          high-dose  group (50  mg/kg),  positive  control  group (dexamethasone  0.09  mg/kg),  and  high-dose  plumbagin+Jagged1 (Notch1
          activator)  group (50  mg/kg+25  mg/kg),  with  10  rats  in  each  group.  Each  group  was  administrated  intragastrically  or
          intraperitoneally  with  the  corresponding  drug  solution  or  normal  saline,  once  a  day  for  28  consecutive  days.  After  the  last
          administration,  the  lung  function  indicators (peak  expiratory  flow,  the  ratio  of  forced  expiratory  volume  in  0.3  seconds  to  forced
          vital capacity), the number of inflammatory cells (white blood cells, lymphocytes, neutrophils, macrophages) in bronchoalveolar
          lavage fluid, the levels of inflammatory factors [interleukin-6 (IL-6), IL-10, tumor necrosis factor-α (TNF-α)] in lung tissue, and
          the  contents  of  oxidative  stress  indicators  [superoxide  dismutase (SOD),  malondialdehyde (MDA)]  in  lung  tissue  were  all
          determined  in  each  group;  the  pathological  changes  of  lung  tissue  and  the  pathological  scores,  as  well  as  protein  expressions  of
          mucin 5ac (Muc5ac), Notch1 and GATA3 in lung tissue were also detected. RESULTS Compared with the control group, the lung
                                                              tissue of the AECOPD group rats showed severe damage to the
              Δ 基金项目 国家重点研发计划项目(No.2020YFA0908204)            alveolar  wall  structure,  with  a  large  number  of  inflammatory
             *第一作者 住院医师,硕士。研究方向:慢性阻塞性肺疾病、肺曲
                                                              cells infiltration and accompanied by pathological changes such
          霉病相关诊疗。E-mail:Wyaru1991@163.com
              # 通信作者 主任医师,硕士。研究方向:肺部感染性疾病诊疗。                  as  thickening  of  the  airway  wall;  their  lung  function
          E-mail:Rdoc1974@163.com                             indicators,  IL-10  level,  and  SOD  content  were  significantly


          · 2250 ·    China Pharmacy  2025 Vol. 36  No. 18                            中国药房  2025年第36卷第18期
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