中国组织工程研究 ›› 2017, Vol. 21 ›› Issue (32): 5158-5163.doi: 10.3969/j.issn.2095-4344.2017.32.013

• 皮肤粘膜组织构建 skin and mucosal tissue construction • 上一篇    下一篇

瘢痕成熟过程中血管生成素1表达与瘢痕血管的变化

吴子涵1,李高峰2   

  1.  (1吉首大学第一附属医院湘西自治州人民医院,湖南省吉首市  416000;2湖南师范大学第一附属医院湖南省人民医院,湖南省长沙市   410000)
  • 收稿日期:2017-06-22 出版日期:2017-11-18 发布日期:2017-11-15
  • 通讯作者: 李高峰,博士,主任医师,湖南师范大学第一附属医院湖南省人民医院,湖南省长沙市 410000
  • 作者简介:吴子涵,女,1989年生,湖南省湘西自治州人,苗族,2015年湖南师范大学毕业,硕士,医师,主要从事瘢痕防治研究。
  • 基金资助:

    湖南省卫生计生委科研基金课题(B2015-88)

Correlation of angiopoietin-1 with angiogenesis during scar formation

Wu Zi-han1, Li Gao-feng2   

  1. (1People’s Hospital of Xiangxi Autonomous Prefecture, the First Affiliated Hospital of Jishou University, Jishou 416000, Hunan Province, China; 2Hunan Provincial People’s Hospital, the First Affiliated Hospital of Hunan Normal University, Changsha 41000, Hunan Province, China)
  • Received:2017-06-22 Online:2017-11-18 Published:2017-11-15
  • Contact: Li Gao-feng, M.D., Chief physician, Hunan Provincial People’s Hospital, the First Affiliated Hospital of Hunan Normal University, Changsha 41000, Hunan Province, China
  • About author:Wu Zi-han, Master, Physician, People’s Hospital of Xiangxi Autonomous Prefecture, the First Affiliated Hospital of Jishou University, Jishou 416000, Hunan Province, China
  • Supported by:

    the Scientific Research Project of Health and Family Planning Commission of Hunan Province, No. B2015-88

摘要:

文章快速阅读:


文题释义:
血管生成:从已有的毛细血管或毛细血管后静脉发展而形成新的血管,主要包括:激活期血管基底膜降解,血管内皮细胞的激活、增殖、迁移,重建形成新的血管和血管网,是一个涉及多种细胞因子的复杂过程。
血管生成素1:为重要的血管生成因子,能保证新生血管内皮细胞的正确组装、促进内皮周围支持细胞的聚集和血管重塑,从而维持新生血管的完整性和稳定性,对新生血管的成熟具有重要作用。
摘要
背景:
目前关于血管内皮细胞生长因子与瘢痕的研究较多,而血管生成素1与瘢痕的研究少有报道。
目的:分析瘢痕成熟过程中血管生成素1的表达与瘢痕血管变化的关系。
方法:取雌雄不限的新西兰大白兔,在耳腹侧中部相同位置制造瘢痕模型,分别在上皮化后1,2,4,8,12周切取兔耳瘢痕组织标本及兔耳腹侧正常皮肤组织,采用苏木精-伊红染色观察瘢痕成熟过程中的大体形态,CD34免疫组织化学染色观察瘢痕血管变化,Western-blot检测血管生成素1表达。
结果与结论:①瘢痕中血管生成素1表达的趋势是先升高,至上皮化后2周最高,之后逐渐降低,至上皮化后12周最小,接近正常皮肤血管生成素1的表达;②微血管总数在上皮化后4周最高,以后逐渐降低;③成熟血管数呈逐渐升高的趋势;④成熟血管数/微血管总数比值呈逐渐升高的趋势;⑤兔耳瘢痕萎缩成熟过程中血管生成素1表达与成熟血管数呈负相关(P < 0.05),血管生成素1表达与成熟血管数/微血管总数比值呈负相关(P < 0.05);⑥血管生成素1在瘢痕萎缩成熟过程中对瘢痕血管成熟可能起重要作用。

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程
ORCID: 0000-0002-2326-0388(吴子涵)

关键词: 组织构建, 组织工程, 血管生成素1, 瘢痕成熟, 微血管, 血管生成, 血管成熟, 细胞因子

Abstract:

BACKGROUND: There are many studies on the correlation between vascular endothelial growth factor and scar, but the correlation between angiopoietin-1 and scar is rarely reported.
OBJECTIVE: To explore the expression of angiopoietin-1 and its correlation with angiogenesis during scar formation.
METHODS: New Zealand white rabbits irrespective of gender were enrolled, and the scar models were established at the ear ventral center. The scar tissue and normal ear ventral tissue were removed at 1, 2, 4, 8, and 12 weeks after epithelialization. The morphology of scar formation was observed by hematoxylin-eosin staining, changes of angiogenesis during scar formation were observed through immunohistochemical staining of CD34, and the expression level of angiopoietin-1 was detected by western blot assay.
RESULTS AND CONCLUSION: The expression level of angiopoietin-1 in the scar tissue was increased firstly, peaked at 2 weeks after epithelialization, then decreased gradually, and the lowest at 12 weeks close to the normal value. The number of microvessels was the highest at 4 weeks after epithelialization and then decreased gradually. The number of mature vessels was on a rise. Number of mature vessels/total number of microvessels tended to be increased. The expression of angiopoietin-1 was correlated negatively with the number of mature vessels, and number of mature vessels/total number of microvessels during scar formation (P < 0.05). To conclude, angiopoietin-1 may play an important role in angiogenesis during scar formation.

中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程

Key words: Angiopoietin-1, Cicatrix, Cytokines, Tissue Engineering

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