表皮细胞表达胚胎性角蛋白与创伤不同修复结局的关系  

The correlation of the fetal cytokeratin expressing in epidermal cells and the different outcomes of wound repairing

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作  者:魏欣净[1] 姜笃银[2] 宗宪磊[2] 付小兵[3] 盛志勇[3] 王魏[2] 单菲[2] 

机构地区:[1]山东大学附属省立医院皮肤科,济南250021 [2]山东大学第二医院、山东大学组织工程研究所 [3]解放军总医院第一附属医院全军创伤修复重点实验室

出  处:《中华外科杂志》2009年第16期1245-1248,共4页Chinese Journal of Surgery

基  金:国家自然科学基金资助项目(30772258,30670571);国家重点基础研究发展计划(973计划)(2005CB522603);山东省教育厅科研发展计划(J07WD03)

摘  要:目的探讨特征性细胞角蛋白(CKs)在表皮组织的分布特征和变化规律及其与创伤修复不同结局的关系。方法对人假上皮瘤样增生(PEH)、瘢痕疙瘩(Ke)、增生性瘢痕(HS)和正常皮肤(NS)标本,采用组织病理学和免疫组织化学(IHC)双染色标记技术进行对比研究,观察CKs在表皮组织的分布特征和变化规律,并进行统计学分析。结果NS组表皮不表达CK8&18和CK17。在活动期PEH、Ke和HS表皮组织中存在数量不等的CK8&18^+细胞和CK17^+细胞,含量高低依次为PEH〉Ke〉HS和HS〉Ke〉PEH(P〈0.05),CK19^+和CK5&6^+细胞有相似的变化趋势,而CK10^+细胞则呈相反的变化趋势,在局部观察到相应的表皮超常增生、细胞形态改变和表皮下炎症反应。结论活动期PEH、Ke和HS表皮细胞存在程度不同的去分化和终末分化失衡,提示表皮细胞异常增殖和分化与创伤修复不同结局有关。Objective To investigate the changing regular of specific cytokeratin (CK) markers expressing in human pseudoepitheliomatous hyperplasia (PEH) , keloids (Ke) and hypertrophic scar (HS) lesion, and to explore the correlation between such changes and the different outcomes of wound repair. Methods Histopathology and immulohistochemistry (IHC) double staining methods were used in samples of human PEH, Ke, HS and NS to determin the distribution characteristics and changing regularity of CKs in epidermal tissues. Results No CK8&18 and CK17 expressed in epidermis of NS group, while CK8&18^+ cells and CK17^+ cells were detected in epidermis of active-stage Ke, HS and PEH. The quantities of CK8&18^+ cells and CK17^+ cells ranked as follows: PEH 〉 Ke 〉 HS and HS 〉 Ke 〉 PEH ( P 〈 0. 05 ). CK19^+ cells and CKS&6^+ cells expressed similar changing trend, while reverse trend of CK10^+ ceils was detected in epidermal cells, with local epidermal hyperplasia, cells morphological changes and subepidermal inflammatory reaction. Conclusion Different degree of de-differentiation and terminal differentiation imbalance are found in epidermal cells of active-stage PEH, Ke and HS, which hint the correlation between the abnormal proliferation and differentiation of epidermal cells and the different outcomes of wound repair.

关 键 词:皮肤 创伤和损伤 细胞角蛋白 干细胞 细胞分化 

分 类 号:R686[医药卫生—骨科学]

 

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