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中华卫生应急电子杂志 ›› 2025, Vol. 11 ›› Issue (01) : 31 -36. doi: 10.3877/cma.j.issn.2095-9133.2025.01.006

论著

rhaFGF通过抑制急性炎症慢性化促进糖尿病小鼠急性创面愈合
庞婷1, 邵远凯1, 王志斌1, 奚萍2, 周力1, 张圆3, 周盼1, 邓哲1,()   
  1. 1. 518035 广东深圳,深圳市第二人民医院(深圳大学第一附属医院)急诊科
    2. 518035 广东深圳,深圳市第二人民医院(深圳大学第一附属医院)老年医学科
    3. 518035 广东深圳,深圳市第二人民医院(深圳大学第一附属医院)神经外科重点实验室
  • 收稿日期:2025-01-13 出版日期:2025-02-18
  • 通信作者: 邓哲
  • 基金资助:
    深圳市科技计划项目(JCYJ20180228163014668 & KCXFZ2023073109410002)国家自然科学基金(82471574)深圳市创伤救治临床研究中心(LCYSSQ20220823091405012)深圳市高水平医院建设项目深圳市第二人民医院院级临床研究项目(20253357007)

Recombinant human acidic fibroblast growth factor promotes healing of acute wound in diabetic mice by inhibiting chronicity of acute inflammation

Ting Pang1, Yuankai Shao1, Zhibin Wang1, Ping Xi2, Li Zhou1, Yuan Zhang3, Pan Zhou1, Zhe Deng1,()   

  1. 1. Department of Emergency Medicine, the Second People's Hospital of Shenzhen/the First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
    2. Department of Geriatrics, the Second People's Hospital of Shenzhen/the First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
    3. Key Laboratory of Neurosurgery, the Second People's Hospital of Shenzhen/the First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
  • Received:2025-01-13 Published:2025-02-18
  • Corresponding author: Zhe Deng
引用本文:

庞婷, 邵远凯, 王志斌, 奚萍, 周力, 张圆, 周盼, 邓哲. rhaFGF通过抑制急性炎症慢性化促进糖尿病小鼠急性创面愈合[J/OL]. 中华卫生应急电子杂志, 2025, 11(01): 31-36.

Ting Pang, Yuankai Shao, Zhibin Wang, Ping Xi, Li Zhou, Yuan Zhang, Pan Zhou, Zhe Deng. Recombinant human acidic fibroblast growth factor promotes healing of acute wound in diabetic mice by inhibiting chronicity of acute inflammation[J/OL]. Chinese Journal of Hygiene Rescue(Electronic Edition), 2025, 11(01): 31-36.

目的

观察重组人酸性成纤维细胞生长因子(rhaFGF)对糖尿病(DM)小鼠急性创面的治疗效果,探讨其在DM 急性创面慢性化过程中的可能作用机制。

方法

采用雄性C57 小鼠建立急性DM创面模型。分为四组:Con(n=17只)、rhaFGF+Con(n=17只)、DM(n=17只)和rhaFGF+DM(n=17只)组。造模后14 d 内,各组创面每天分别予rhaFGF(0.08 μg/cm²)或PBS 缓冲液湿敷。计算各组造模后14 d 内创面愈合率;造模后第7 天,收集血及创面周围组织,采用ELISA 法检测小鼠血清和组织中IL-6、TNF-α 水平;Western-blot 法检测组织中IL-1β、IL-18 及NLRP3 炎症小体相关分子(NLRP3、ASC、Caspase-1)的表达。

结果

造模后第9 天开始,DM 组小鼠伤口愈合率明显低于Con 组(P<0.05)。而DM+rhaFGF 组愈合率于造模后第7 天开始明显高于DM 组(P<0.05)。造模后第7 天,与Con 组相比,DM 组小鼠创面组织及血清IL-6 和TNF-α 水平明显升高;DM+rhaFGF 组IL-6 和TNF-α 水平则比DM组明显降低(P<0.05)。DM 组创面组织中炎症小体相关分子NLRP3、ASC、Caspase-1及IL-1β、IL-18明显高于Con 组;与DM 组比较,DM+rhaFGF 组炎症小体相关分子及IL-1β、IL-18 均明显减少(P<0.05)。

结论

rhaFGF通过减少促炎因子释放,阻止急性炎症转变为慢性,促进DM急性创面的愈合,其机制可能与其抑制DM创面中NLRP3活化有关。

Objective

To observe the therapeutic effect of recombinant human acidic fibroblast growth factor (rhaFGF) on acute wounds in diabetes mellitus (DM) mice, and to explore its possible underlying mechanisms in chronicity of acute DM wound.

Methods

Acute DM wound models were established in male C57 mice.The mice were divided into four groups: Con (n=17), Con+rhaFGF (n=17), DM(n=17), and DM+rhaFGF (n=17).rhaFGF (0.08 μg/cm²) or PBS was daily administered on wound surface for 14 days after wound creation.The wound healing rates were calculated in each group.On the 7th day after rhaFGF administration, the levels of IL-6 and TNF-α in serum and tissues of mice were detected by ELISA.Additionally, the expression of IL-1β, IL-18 and NLRP3 inflammatory-associated molecules (NLRP3, ASC,and Caspase-1) in the tissues were measured using Western blot analysis.

Results

From the 9th day after modeling, the wound healing rates observed in the DM group was significantly lower than those of the Con group (P<0.05).Additionally, the healing rates in the DM+ rhaFGF group was significantly higher than that in the DM group from the 7th day (P<0.05).On the 7th day after modeling, the levels of IL-6 and TNF-α in the DM group were significantly higher than those in the Con group.In contrast, the levels of these molecules in the DM + rhaFGF group were significantly lower than those in the DM group (P<0.05).The levels of NLRP3, ASC, caspase-1, IL-1β, and IL-18 in the tissues of the DM group were significantly higher than those in the Con group.In contrast, the levels of these molecules in the DM + rhaFGF group were significantly lower than those in the DM group (P<0.05).

Conclusion

RhaFGF promotes the healing of acute DM wounds by reducing the release of pro - inflammatory factors and preventing the transition from acute to chronic inflammation.This mechanism may be associated with the inhibition of NLRP3 in acute DM wounds.

图1 小鼠创面愈合变化及愈合率统计分析 注:Con为空白对照组,DM为空白糖尿病组,Con+rhaFGF为用药对照组,DM+rhaFGF为用药糖尿病组;a为各组小鼠创面愈合过程变化,b为各组小鼠伤口愈合率变化,c为各组小鼠伤口初始面积,d~i为造模后第3、5、7、9、11、14天各组小鼠创面愈合率比较;*P<0.05差异有统计学意义
图2 小鼠血清和组织中IL-6和TNF-α表达水平 注:Con为空白对照组,DM 为空白糖尿病组,Con+rhaFGF 为用药对照组,DM+rhaFGF 为用药糖尿病组;a为各组小鼠血清中IL-6的表达水平,b为各组小鼠组织中IL-6 的表达水平,c 为各组小鼠血清中TNF-α 的表达水平,d 为各组小鼠组织中TNF-α 的表达水平;*P<0.05 差异有统计学意义
图3 WB电泳条带图及炎症相关蛋白表达 注:Con 为空白对照组,DM 为空白糖尿病组,Con+rhaFGF 为用药对照组,DM+rhaFGF 为用药糖尿病组;a 为各组WB 电泳条带,b~f 分别为NLRP3、ASC、Caspase-1、IL-18和IL-1β蛋白的表达水平;*P<0.05差异有统计学意义
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