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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
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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