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中华乳腺病杂志(电子版) ›› 2012, Vol. 06 ›› Issue (01) : 38 -44. doi: 10.3877/cma. j. issn.1674-0807.2012.01.006

论著

尿激酶型纤维蛋白酶原激活剂和基质金属蛋白酶-26在乳腺癌中的表达及其与微血管密度的关系
黄桂林1, 孙旭凌1   
  1. 1.832008 新疆石河子,石河子大学医学院第一附属医院普外二科
  • 收稿日期:2011-08-01 出版日期:2012-02-01

Expression of uPA and MMP-26 in breast carcinoma and their correlation with MVD

Gui-lin HUANG1, Xu-ling SUN1   

  1. 1.Department of General Surgery, First Affiliated Hospital of Shihezi University, Shihezi 832008,Xinjiang, China
  • Received:2011-08-01 Published:2012-02-01
引用本文:

黄桂林, 孙旭凌. 尿激酶型纤维蛋白酶原激活剂和基质金属蛋白酶-26在乳腺癌中的表达及其与微血管密度的关系[J/OL]. 中华乳腺病杂志(电子版), 2012, 06(01): 38-44.

Gui-lin HUANG, Xu-ling SUN. Expression of uPA and MMP-26 in breast carcinoma and their correlation with MVD[J/OL]. Chinese Journal of Breast Disease(Electronic Edition), 2012, 06(01): 38-44.

目的

检测乳腺浸润性导管癌(invasive ductal carcinoma, IDC)组织中尿激酶型纤维蛋白酶原激活剂(urokinase-type plasminogen activator, uPA)、基质金属蛋白酶-26(matrix metalloproteinase-26,MMP-26) 的表达, 计数微血管密度(microvessel density, MVD),探讨3 项指标与IDC 临床病理参数的关系,分析uPA、MMP-26 表达的相关性及其与MVD 的关系。

方法

采用免疫组织化学SP 法检测85 例IDC 组织(观察组)及30 例乳腺纤维腺瘤组织(对照组)中的uPA、MMP-26 的表达,以CD105 标记MVD。uPA、MMP-26 蛋白表达与各临床指标的关系采用χ2 检验,因MVD 值为非正态分布,且方差不齐,两组及多组间样本均数比较采用非参数检验,蛋白表达相关性分析采用Spearman等级相关检验。

结果

(1)uPA、MMP-26 的阳性率分别为观察组62.4% (53/85)、64.7%(55/85),对照组26.7%(8/30)、16.7%(5/30),两组比较,差异有统计学意义(P 均<0.05)。(2)IDC 组织中uPA 表达与IDC 的淋巴结转移、组织学分级、pTNM 分期有关(P 均<0.05)。MMP-26 表达与IDC 的淋巴结转移、组织学分级、雌激素受体有关。uPA、MMP-26 表达呈正相关(r=0.341,P=0.002)。(3)高MVD 组uPA、MMP-26阳性率均明显高于低MVD 组(P 均<0.05)。

结论

uPA、MMP-26 在IDC 组织中过表达,并且促进肿瘤血管生成。

Objective

To detect the expression of urokinase-type plasminogen activator (uPA), matrix metalloproteinase-26 (MMP-26)in breast invasive ductal carcinoma(IDC) tissue, measure the microvessel density (MVD), investigate their correlation with clinical pathological parameters of IDC,the correlation of uPA and MMP-26 expression and the relationship with MVD.

Methods

Immunohistochemical SP method was applied to detect the expressions of uPA and MMP-26 in 85 cases of breast IDC (observation group) and 30 cases of breast fibroadenoma (control group). MVD was marked by CD105. Using SPSS17.0 statistical software, the relationship between clinical parameters and the protein expression of uPA,MMP-26 were analyzed by chi-square test. Because MVD had non-normal distribution and heterogeneity of variance, the sample means of different groups were analyzed by nonparametric test. Protein expression were analyzed using Spearman rank correlation test.

Results

(1)The positive rates of uPA and MMP-26 were 62.4%(53/85),64.7%(55/85) in observation group, and 26.7% (8/30), 16.7% (5/30)in control group, respectively(all P<0.05). (2) In IDC tissues, the correlation was statistically significant between uPA expression and lymph node metastasis,histological grading,pTNM staging (all P<0.05). The correlation was statistically significant between MMP-26 expression and lymph node metastasis,histological grading, and estrogen receptor (all P <0.05). uPA expression had a positive correlation with MMP-26 expression(r=0.341,P=0.002).(3)The positive rates of uPA and MMP-26 in tissue with high MVD were significantly higher than those in tissue with low MVD(P<0.05).

Conclusion

uPA and MMP-26 are over-expressed in IDC tissue, which can promote tumor angiogenesis.

图1 uPA 在乳腺浸润性导管癌和乳腺纤维腺瘤中的表达(SP 染色 ×200) a: uPA 在乳腺浸润性导管癌中阳性表达;b:uPA 在乳腺纤维腺瘤中阴性表达
图2 MMP-26 在乳腺浸润性导管癌和乳腺纤维腺瘤中的表达(SP 染色 ×200) a: MMP-26 在乳腺浸润性导管癌中阳性表达;b:MMP-26 在乳腺纤维腺瘤中阴性表达
图3 CD105 在乳腺浸润性导管癌中的阳性表达(SP 染色 ×400)
表1 uPA、MMP-26、MVD 在观察组与对照组的表达差异
表2 uPA、MMP-26、MVD 与乳腺IDC 临床病理参数的关系
表3 uPA 与MMP-26 的相关性分析
表4 MVD 与uPA、MMP-26 表达的关系
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