[Objectives] To investigate expression of MMP-1 in the scar tissue of skin and oral mucosa,and to explore if there is the significance of MMP-1 in the scar of skin and oral mucosa.[Methods]All samples were collected f...[Objectives] To investigate expression of MMP-1 in the scar tissue of skin and oral mucosa,and to explore if there is the significance of MMP-1 in the scar of skin and oral mucosa.[Methods]All samples were collected from surgical postoperative soft tissue from Department of Oral and Maxillofacial Surgery and Plastic Surgery in the Affiliated Qingdao Hiser Medical Center of Qingdao University Medical College,including 22 samples of dermal scar tissue,20 samples of normal skin tissue,and 13 samples of oral mucosal scar tissue,and 20 samples of normal oral mucosal tissue. HE staining was used to observe the morphology and collagen arrangement of fibroblasts in the scar tissue,the expression of MMP-1 in different tissue was observed by immunohistchemical staining. [Results] The positive expression rates of MMP-1 in skin scar tissue,oral mucousal scar tissue,normal skin tissue and normal mucosal tissue were 27. 27%,69. 23%,5. 00%,10. 00%. Comparison of positive expression of MMP-1 in skin scar tissue and oral mucosal scar tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that of MMP-1 in skin scar tissue,and the statistically significant difference was found between them( P < 0. 05).Comparison of positive expression of MMP-1 in skin scar tissue and normal skin tissue: the positive expression in skin scar tissue was higher than that in normal skin,and the statistically significant difference was found between them( P < 0. 05). Comparison of positive expression of MMP-1 in oral mucosal scar tissue and normal oral mucosal tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that in normal mucosal tissue,and the statistically significant difference was found between them( P < 0. 05). Comparison of positive expression of MMP-1 in normal oral mucosal tissue and normal skin tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that in normal mucosal tissue,and there was no statistically significant difference betw展开更多
基金Supported by Supported by Technology Research and Development Program of Qingdao[11-2-3-4-(2)-nsh]Affiliated Qingdao Hiser Medical Center of Qingdao University Medical College
文摘[Objectives] To investigate expression of MMP-1 in the scar tissue of skin and oral mucosa,and to explore if there is the significance of MMP-1 in the scar of skin and oral mucosa.[Methods]All samples were collected from surgical postoperative soft tissue from Department of Oral and Maxillofacial Surgery and Plastic Surgery in the Affiliated Qingdao Hiser Medical Center of Qingdao University Medical College,including 22 samples of dermal scar tissue,20 samples of normal skin tissue,and 13 samples of oral mucosal scar tissue,and 20 samples of normal oral mucosal tissue. HE staining was used to observe the morphology and collagen arrangement of fibroblasts in the scar tissue,the expression of MMP-1 in different tissue was observed by immunohistchemical staining. [Results] The positive expression rates of MMP-1 in skin scar tissue,oral mucousal scar tissue,normal skin tissue and normal mucosal tissue were 27. 27%,69. 23%,5. 00%,10. 00%. Comparison of positive expression of MMP-1 in skin scar tissue and oral mucosal scar tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that of MMP-1 in skin scar tissue,and the statistically significant difference was found between them( P < 0. 05).Comparison of positive expression of MMP-1 in skin scar tissue and normal skin tissue: the positive expression in skin scar tissue was higher than that in normal skin,and the statistically significant difference was found between them( P < 0. 05). Comparison of positive expression of MMP-1 in oral mucosal scar tissue and normal oral mucosal tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that in normal mucosal tissue,and the statistically significant difference was found between them( P < 0. 05). Comparison of positive expression of MMP-1 in normal oral mucosal tissue and normal skin tissue: the positive expression rate of MMP-1 in oral mucosal scar tissue was higher than that in normal mucosal tissue,and there was no statistically significant difference betw
文摘目的探讨cyclin A、p21WAF1在皮肤病理性瘢痕和瘢痕癌组织中的表达及意义。方法以病理性皮肤瘢痕、皮肤瘢痕癌组织为研究对象,以正常皮肤组织为对照。采用免疫组化SP法分别检测cyclin A、p21WAF1蛋白的表达,采用核酸分子原位杂交法检测cyclin A mRNA、p21WAF1mRNA的表达,结合图像分析,分别观测3组被检组织中所检各项指标的表达(平均光密度和阳性面积);所有数据输入计算机后运用SPSS 16.0软件包进行统计学分析。结果 (1)cyclin A、cyclin A mRNA在正常皮肤表皮和病理性皮肤瘢痕上皮中的表达呈阴性或弱阳性,在瘢痕癌组织中呈强阳性。瘢痕癌组的表达(平均光密度和阳性面积)与正常皮肤组及皮肤瘢痕组比较,差异均有统计学意义(P<0.01),但正常皮肤组与瘢痕组比较,差异无统计学意义(P>0.05)。(2)p21WAF1蛋白、p21WAF1mRNA在正常皮肤表皮和病理性皮肤瘢痕上皮中的表达呈阴性或弱阳性,在瘢痕癌组织中呈强阳性。瘢痕癌组的表达(平均光密度和阳性面积)与正常皮肤组及皮肤瘢痕组比较,差异均有统计学意义(P<0.01),但正常皮肤组与瘢痕组比较,差异无统计学意义(P>0.05)。(3)相关分析显示,在皮肤瘢痕癌中,cyclin A与cyclin A mRNA(r=0.766,P<0.01)、p21WAF1与p21WAF1mRNA(r=0.791,P<0.01)的表达呈正相关;cyclin A与p21WAF1蛋白(r=0.656,P<0.01)的表达呈正相关;cyclin A mRNA与p21WAF1mRNA的表达呈正相关(r=0.475,P<0.05)。结论 (1)cyclin A及其mR-NA的高表达,可能与皮肤瘢痕癌的发生有关;(2)在瘢痕癌中,cyclin A、p21WAF1同时存在蛋白水平和基因水平的异常表达;(3)p21WAF1及其mRNA在瘢痕癌中的高表达可能与细胞周期调控的反馈机制有关。
