中国组织工程研究 ›› 2022, Vol. 26 ›› Issue (10): 1544-1550.doi: 10.12307/2022.201

• 细胞外基质材料 extracellular matrix materials • 上一篇    下一篇

医用胶原蛋白海绵外敷糖尿病足溃疡创面Ⅰ、Ⅲ型胶原蛋白和基质金属蛋白酶2,9的变化

赵紫熙,徐  俊,丁  敏,李喜文,张靖航,王鹏华   

  1. 天津医科大学朱宪彝纪念医院,天津市内分泌研究所,国家卫健委激素与发育重点实验室,天津市代谢性疾病重点实验室,天津市   300134
  • 收稿日期:2020-10-15 修回日期:2020-10-17 接受日期:2020-11-25 出版日期:2022-04-08 发布日期:2021-10-25
  • 通讯作者: 王鹏华,硕士,主任医师,硕士生导师,天津医科大学朱宪彝纪念医院,天津市内分泌研究所,国家卫健委激素与发育重点实验室,天津市代谢性疾病重点实验室,天津市 300134
  • 作者简介:赵紫熙,女,1989年生,辽宁省海城市人,汉族,天津医科大学在读硕士,医师,主要从事糖尿病及糖尿病足诊治研究
  • 基金资助:
    国家自然科学基金委员会项目(81670766),项目负责人:王鹏华

Changes of type I and III collagen and matrix metalloproteinase 2 and 9 on the wound of diabetic foot ulcer with external application of medical collagen dressing

Zhao Zixi, Xu Jun, Ding Min, Li Xiwen, Zhang Jinghang, Wang Penghua   

  1. Key Laboratory of Hormone and Development of National Health Commission (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Department of Diabetic Foot of Zhu Xianyi Memorial Hospital of Tianjin Medical University (Metabolic Disease Hospital of Tianjin Medical University), Tianjin Institute of Endocrinology, Tianjin 300134, China 
  • Received:2020-10-15 Revised:2020-10-17 Accepted:2020-11-25 Online:2022-04-08 Published:2021-10-25
  • Contact: Wang Penghua, Master, Chief physician, Master’s supervisor, Key Laboratory of Hormone and Development of National Health Commission (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Department of Podiatry of Zhu Xianyi Memorial Hospital of Tianjin Medical University (Metabolic Disease Hospital of Tianjin Medical University), Tianjin Institute of Endocrinology, Tianjin 300134, China
  • About author:Zhao Zixi, Master candidate, Physician, Key Laboratory of Hormone and Development of National Health Commission (Tianjin Medical University), Tianjin Key Laboratory of Metabolic Diseases, Department of Diabetic Foot of Zhu Xianyi Memorial Hospital of Tianjin Medical University (Metabolic Disease Hospital of Tianjin Medical University), Tianjin Institute of Endocrinology, Tianjin 300134, China
  • Supported by:
    the National Natural Science Foundation of China, No. 81670766 (to WPH)

摘要: 文题释义:
基质金属蛋白酶2、9:正常情况下,基质金属蛋白酶可直接参与降解细胞外基质成分,降解胶原蛋白,影响组织重塑,它与基质金属蛋白酶抑制剂两者的动态平衡维持细胞外基质的稳定。在糖尿病足溃疡伤口中,升高的基质金属蛋白酶2、9会导致蛋白水解的活性增加、水解胶原蛋白的能力增强,使伤口愈合过程的某些因子失活,并且由于胶原蛋白含量的减少,对基质金属蛋白酶的抑制作用也明显减弱,影响组织合成。
Ⅰ、Ⅲ型胶原蛋白:是参与创面修复的重要细胞外基质成分,在创面的愈合过程中发生动态变化。胶原由成纤维细胞和肌成纤维细胞分泌,参与形成肉芽组织,故胶原蛋白的生成与成纤维细胞增殖密切相关。在伤口中Ⅰ型胶原蛋白起支架作用,Ⅲ型胶原蛋白决定胶原纤维的直径大小和弹性。

背景:胶原蛋白已被广泛应用于口腔、血管、神经、骨及软骨组织等领域中,但胶原蛋白海绵在糖尿病足溃疡伤口的应用鲜有研究。
目的:分析医用胶原蛋白海绵对糖尿病足溃疡伤口肉芽组织Ⅰ、Ⅲ型胶原蛋白及基质金属蛋白酶2、9表达的影响。
方法:选择2019年1-12月天津医科大学代谢病医院足病科收治的46例糖尿病足溃疡患者,其中男25例,女21例,类随机法分2组治疗,对照组换药清创,实验组在对照组治疗的基础上创面填充胶原蛋白海绵。治疗前及治疗后第3,7,14天记录创面面积,计算创面愈合率;同时取创面肉芽组织,免疫组织化学染色观察基质金属蛋白酶2、基质金属蛋白酶9的表达情况,Western blot检测分析Ⅰ、Ⅲ型胶原蛋白表达情况。研究已通过天津医科大学朱宪彝纪念医院伦理委员会批准。
结果与结论:①随着治疗时间的延长,两组创面愈合率增加,试验组治疗后3,7,14 d的创面愈合率高于对照组(P < 0.05);②随着治疗时间的延长,两组创面肉芽组织中的基质金属蛋白酶2、基质金属蛋白酶9沉积减少,实验组治疗后各时间点的基质金属蛋白酶2、9表达少于对照组(P < 0.05);③随着治疗时间的延长,两组创面肉芽组织中的Ⅰ、Ⅲ型胶原蛋白表达增加,实验组治疗后各时间点的Ⅰ、Ⅲ型胶原蛋白表达表达高于对照组(P < 0.05);④结果表明,医用胶原蛋白海绵可减少创面组织中基质金属蛋白酶2/9的表达,有助于Ⅰ、Ⅲ型胶原蛋白的合成,提高创面愈合率。

关键词: 材料, 胶原蛋白, 糖尿病足溃疡, 创面愈合, 基质金属蛋白酶, 细胞外基质

Abstract: BACKGROUND: Collagen has been widely used in the fields of oral cavity, blood vessel, nerve, bone and cartilage, but the application of collagen sponge in ulcer wound of diabetic foot is seldom studied.
OBJECTIVE: To analyze the effect of medical collagen sponge on the expression of type I and III collagen and matrix metalloproteinase 2 and 9 in granulation tissue of diabetic foot ulcer wound.
METHODS: Forty-six patients with diabetic foot ulcers, 25 males and 21 females, admitted to the Department of Podiatry, Metabolic Disease Hospital of Tianjin Medical University from January to December 2019 were randomly divided into two groups. The control group received dressing change and debridement. The experimental group was treated with collagen sponge on the basis of the control group. Wound area was recorded before treatment and 3, 7, 14 days after treatment. Wound healing rate was calculated. Granulation tissue was taken and immunohistochemical staining was used to observe the expression of matrix metalloproteinase 2 and matrix metalloproteinase 9. Western blot analysis was used to measure type I and III collagen protein expression. This study was approved by the Ethics Committee of Zhu Xianyi Memorial Hospital of Tianjin Medical University. 
RESULTS AND CONCLUSION: (1) The wound healing rate of the two groups increased with the time of treatment. The wound healing rate of the test group was higher than that of the control group at 3, 7, and 14 days after treatment (P < 0.05). (2) With the treatment time prolonged, the deposition of matrix metalloproteinase 2 and matrix metalloproteinase 9 in wound granulation tissue decreased in both groups. The expression of matrix metalloproteinase 2 and 9 in the experimental group was lower than that in the control group at various time points (P < 0.05). (3) The expression of type I and type III collagen in the wound granulation tissue increased with the treatment time, and the expression of type I and type III collagen in the experimental group was higher than that in the control group (P < 0.05). (4) The results showed that medical collagen sponge could reduce the expression of matrix metalloproteinase 2/9 in wound tissue, promote the synthesis of type I and III collagen, and improve the wound healing rate.

Key words: material, collagen, diabetic foot ulcer, wound healing, matrix metalloproteinase, extracellular matrix

中图分类号: