Page 40 - 《中国药房》2025年10期
P. 40

补阳还五汤延缓细胞衰老改善特发性肺纤维化的机制研究
                                                                                                    Δ


                *
                          #
          陈 隆 ,渠景连(贵州中医药大学基础中医学院,贵阳 550025)
          中图分类号  R965;R285.5      文献标志码  A      文章编号  1001-0408(2025)10-1186-05
          DOI  10.6039/j.issn.1001-0408.2025.10.06

          摘   要  目的  探讨补阳还五汤对特发性肺纤维化(IPF)大鼠的改善作用及机制。方法  将大鼠随机分为正常组、模型组、吡非尼
          酮组(阳性对照,0.162 g/kg)和补阳还五汤低、中、高剂量组(6.435、12.87、25.74 g/kg),每组6只。除正常组外,其余各组大鼠采用
          气管内注射硫酸博来霉素的方法制备IPF大鼠模型。造模成功第2天开始给药,每天1次,连续28 d。末次给药后,观察大鼠肺组
          织外观形态、病理学形态变化、纤维化情况;检测大鼠肺组织中细胞周期蛋白依赖性激酶抑制剂2A(P16)、1A(P21)及转化生长因
          子β1 (TGF-β1 )、Smad同源物3(Smad3)、Smad7、表皮生长因子(EGF)、表皮生长因子受体(EGFR)、基质金属蛋白酶12(MMP-12)、
          趋化因子配体2(CCL2)、白细胞介素4(IL-4)蛋白表达。结果  与正常组比较,模型组大鼠肺组织颜色灰白、质地变硬,有明显的瘀
          斑和囊肿;肺泡间隔增厚、结构被严重破坏,出现大量炎症细胞浸润,且纤维化程度严重;肺组织中胶原沉积分数和P16、P21、TGF-β1、
          Smad3、EGF、EGFR、IL-4 蛋白表达水平均显著升高(P<0.05 或 P<0.01),Smad7、MMP-12、CCL2 蛋白表达水平均显著降低(P<
          0.05或P<0.01)。与模型组比较,补阳还五汤各剂量组大鼠肺组织外观、病理学形态、纤维化程度均明显改善,上述定量指标均显
          著逆转(P<0.05或P<0.01)。结论  补阳还五汤可改善大鼠IPF,其作用机制可能与抑制TGF-β1/Smad信号通路活性、延缓细胞衰
          老有关。
          关键词  补阳还五汤;特发性肺纤维化;细胞衰老;TGF-β1/Smad信号通路

          Mechanism  of  Buyang  huanwu  tang  in   improving  idiopathic  pulmonary  fibrosis  by  delaying  cellular
          senescence
          CHEN Long,QU Jinglian(College  of  Basic  Traditional  Chinese  Medicine,  Guizhou  University  of  Traditional
          Chinese Medicine, Guiyang 550025, China)

          ABSTRACT    OBJECTIVE  To  investigate  the  improvement  effect  and  mechanism  of  Buyang  huanwu  tang  on  idiopathic
          pulmonary  fibrosis (IPF)  model  rats.  METHODS  The  rats  were  randomly  divided  into  normal  group,  model  group,  pirfenidone
          group (positive  control,  0.162  g/kg),  Buyang  huanwu  tang  low-,  medium-  and  high-dose  groups (6.435,  12.87,  25.74  g/kg),
          with  6  rats  in  each  group.  Except  for  the  normal  group,  IPF  model  was  established  in  the  remaining  groups  by  intratracheal
          injection  of  bleomycin  sulfate.  On  the  second  day  after  successful  modeling,  medication  was  administered  once  a  day  for  28
          consecutive  days. After  the  last  medication,  the  appearance  and  morphology,  pathological  changes,  and  fibrosis  status  of  the  lung
          tissues in rats were observed. cyclin-dependent kinase inhibitor 2A (P16), P21, transforming growth factor-β1 (TGF-β1 ), Smad3,
          Smad7,  epidermal  growth  factor (EGF),  epidermal  growth  factor  receptor (EGFR),  matrix  metalloproteinase  12 (MMP-12),
          chemokine  ligand  2 (CCL2)  and  interleukin-4 (IL-4)  protein  expression  in  lung  tissue  were  all  determined.  RESULTS  Compared
          with the normal group, the lung tissue of rats in the model group exhibited gray-white color, harder texture, obvious bruising and
          cysts.  Additionally,  alveolar  septa  were  significantly  thickened,  their  structural  integrity  severely  compromised,  accompanied  by
          pronounced infiltration of inflammatory cells and severe pulmonary fibrosis. Collagen volume fraction, protein expressions of P16,
          P21, TGF-β1, Smad3, EGF, EGFR and (IL-4) in lung tissue significantly increased (P<0.05 or P<0.01), while Smad7, MMP-12
          and  CCL2  protein  expressions  were  significantly  decreased (P<0.05  or  P<0.01).  Compared  with  the  model  group,  the
          appearance,  pathological  morphology,  and  fibrosis  degree  of  rat  lung  tissue  in  Buyang  huanwu  tang  groups  were  significantly
          improved,  and  the  above  quantitative  indicators  were  significantly  reversed (P<0.05  or  P<0.01).  CONCLUSIONS  Buyang
          huanwu  tang  can  ameliorate  IPF  in  rats,  and  its  underlying  mechanism  may  be  associated  with  the  inhibition  of  TGF- β1/Smad
          signaling pathway activity and the attenuation of cellular senescence.
          KEYWORDS     Buyang huanwu tang; idiopathic pulmonary fibrosis; cellular senescence; TGF-β1/Smad signaling pathway


              特发性肺纤维化(idiopathic pulmonary fibrosis,IPF)      是一类慢性、进展性间质肺损伤疾病,目前认为其发病
                                                              机制主要包括肺泡上皮细胞损伤修复异常和肌成纤维
              Δ 基金项目 国家自然科学基金项目(No.82160892)
             *第一作者 硕士研究生。研究方向:中医药防治肺纤维化机制。                    细胞过度活化,导致细胞外基质(extracellular matrix,
                                                                                         [1]
                                                              ECM)过度沉积,形成肺纤维化 。目前,IPF 患者的数
          E-mail:2647877588@qq.com
                                                                              [2]
              # 通信作者 副教授,博士。研究方向:名医名方防治肺纤维化机                  量呈逐年增加趋势 ,因该发病隐匿且肺纤维化不可逆,
                                                                                        [3]
          制。E-mail:qqpsy2009@126.com                          患者的中位生存期仅为2~3年 。临床针对IPF的治疗
          · 1186 ·    China Pharmacy  2025 Vol. 36  No. 10                            中国药房  2025年第36卷第10期
   35   36   37   38   39   40   41   42   43   44   45