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积雪草苷对兔耳增生性瘢痕形成的抑制作用及机制
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                                   2 #
          李其爱 ,周文娇 ,许秉诚 (1.武汉市武昌医院皮肤科,武汉 430064;2.武汉市武昌医院老年病科,武汉
                          1
                 1*
          430064)
          中图分类号  R965      文献标志码  A      文章编号  1001-0408(2026)05-0607-06
          DOI  10.6039/j.issn.1001-0408.2026.05.10


          摘  要  目的  基于Wnt/β-catenin通路,研究积雪草苷对兔耳增生性瘢痕形成的抑制作用及机制。方法  构建兔耳增生性瘢痕模
          型,将造模成功的兔分为模型组(生理盐水)、积雪草苷低剂量组(12 mg/kg)、积雪草苷高剂量组(24 mg/kg)、阳性对照组(醋
          酸曲安奈德 40 mg/kg),另设不造模的对照组(生理盐水),每组8只。各组兔于瘢痕内基底部注射相应药液/生理盐水,每天给药1
          次,连续28 d。末次给药结束后,观察兔耳增生性瘢痕外观并测定增生性瘢痕指数,检测兔耳增生性瘢痕组织中炎症因子水平[白
          细胞介素6(IL-6)、IL-10],观察兔耳增生性瘢痕组织病理学形态,检测兔耳增生性瘢痕组织中Ⅰ型胶原(COLⅠ)、COLⅢ、Wnt4、
          β-catenin蛋白表达水平。结果  与对照组比较,模型组兔耳出现增生性瘢痕,角质层变厚,真皮组织中胶原纤维异常沉积且排列较
          乱;增生性瘢痕指数、IL-6水平、成纤维细胞密度、胶原纤维面密度和COLⅠ、COLⅢ的平均光密度值以及Wnt4、β-catenin蛋白的
          表达水平均显著升高(P<0.05),IL-10水平显著降低(P<0.05)。与模型组比较,积雪草苷低、高剂量组兔耳增生性瘢痕软化,角
          质层变薄,上述定量指标均显著逆转(P<0.05)。结论  积雪草苷可抑制兔耳增生性瘢痕形成,减轻瘢痕组织炎症反应,其作用机
          制可能与抑制Wnt/β-catenin通路的激活有关。
          关键词  积雪草苷;增生性瘢痕;Wnt/β-catenin通路;炎症反应

          Inhibitory effect and mechanism of asiaticoside on hypertrophic scar formation in rabbit ears
                1
                               1
          LI Qiai ,ZHOU Wenjiao ,XU Bingcheng(1. Dept. of Dermatology, Wuhan Wuchang Hospital, Wuhan 430064,
                                              2
          China;2. Dept. of Geriatrics, Wuhan Wuchang Hospital, Wuhan 430064, China)
          ABSTRACT     OBJECTIVE  To  explore  the  inhibitory  effect  and  its  mechanism  of  asiaticoside  on  hypertrophic  scar  formation  in
          rabbit  ears  based  on  the  Wnt/β-catenin  pathway.  METHODS  The  hypertrophic  scar  model  in  rabbit  ears  was  established.  Model
          rabbits were divided into the model group (normal saline), asiaticoside low-dose group (12 mg/kg), asiaticoside high-dose group
         (24  mg/kg),  and  positive  control  group (triamcinolone  acetonide  acetate  40  mg/kg);  additionally,  a  non-modeled  control  group
         (normal  saline)  was  set  up. There  were  8  rabbits  in  each  group.  Rabbits  in  each  group  were  injected  with  the  corresponding  drug
          solution/normal saline at the base within the scar area once daily for 28 consecutive days. After the last medication, the appearance
          of hypertrophic scars in rabbit ears was observed, and the hypertrophic scar index was measured; the levels of inflammatory factors
          [interleukin-6 (IL-6)  and  IL-10]  in  hypertrophic  scar  tissue  of  rabbits  were  determined;  histopathological  morphology  of
          hypertrophic  scar  tissues  in  rabbit  ears  was  observed,  and  the  protein  expression  levels  of  collagen  type  Ⅰ (COLⅠ),  COLⅢ,
          Wnt4  and  β-catenin  in  the  hypertrophic  scar  tissues  were  detected.  RESULTS  Compared  with  control  group,  in  the  model  group,
          the  symptoms  of  hypertrophic  scars  were  observed,  the  stratum  corneum  was  thicker,  and  there  was  abnormal  accumulation  and
          disorganized  arrangement  of  collagen. The  hypertrophic  scar  index,  IL-6  level,  fibroblast  density,  area  density  of  collagen  fibers,
          mean  optical  density  values  of  COLⅠ  and  COLⅢ,  as  well  as  the  expression  levels  of  Wnt4  and  β-catenin  proteins,  were  all
          significantly elevated (P<0.05), while the level of IL-10 was significantly decreased (P<0.05). Compared with the model group,
          the  hypertrophic  scars  in  asiaticoside  low-  and  high-dose  groups  were  significantly  softened,  with  a  thinned  stratum  corneum,  and
          the above quantitative indicators were all significantly reversed (P<0.05). CONCLUSIONS Asiaticoside can inhibit the formation
          of hypertrophic scars in rabbit ears and alleviate the inflammatory response in scar tissue. Its mechanism of action may be related to
                                                             the inhibition of activation of the Wnt/β-catenin pathway.
             Δ 基金项目 武汉市中医药科研项目(No.WZ24B70)                   KEYWORDS     asiaticoside;  hypertrophic  scar;  Wnt/β-catenin
             *第一作者 主治医师,硕士。研究方向:中西医结合治疗皮肤疾
                                                             pathway; inflammatory response
          病。E-mail:liqiai1988@163.com
             # 通信作者 主治医师,硕士。研究方向:中西医结合治疗老年疾
          病。E-mail:xubch@163.com


          中国药房  2026年第37卷第5期                                                 China Pharmacy  2026 Vol. 37  No. 5    · 607 ·
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