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| 1 | MMP-9和TGF β1在宫颈鳞癌中的表达和意义显示文摘目的 :分别检测宫颈分泌物、血液和宫颈病变组织中的基质金属蛋白酶-9(MMP-9)和转化生长因子β1(TGF-βl)的表达情况,探讨其在宫颈病变形成及演进过程中的意义。方法 :应用ELISA法检测66例病人(其中慢性宫颈炎组织10例、CINcervical intraepithelial neoplasia宫颈上皮内瘤变24例,宫颈鳞癌32例)的宫颈分泌物和血清中的TGF-βl和MMP-9的表达水平。应用免疫组织化学SP法检测相对应病人石蜡包埋的不同病变宫颈组织中TGF-βl和MMP-9的表达。结果 :1.在血清和宫颈分泌物中TGF-βl和MMP-9的浓度与宫颈癌密切相关:慢性宫颈炎组、宫颈上皮内瘤变(CIN)组和宫颈鳞癌(Cx Ca)组的样本中TGF-βl和MMP-9的浓度逐级升高,提示随着宫颈癌恶性程度的增加,TGF-βl和MMP-9的表达明显增强。血清和宫颈分泌物中MMP-9和TGF-β1与其切片免疫组化结果相吻合。随着MMP-9在宫颈分泌物和血清中表达的增强,TGF-β1的表达也明显增高,两者呈正相关。2.TGF-βl和MMP-9表达与宫颈癌的病理和临床分类的关系:在宫颈癌组织中有淋巴结转移的MMP-9和TGFβ1的表达阳性率显著高于无淋巴结转移的。在宫颈癌≥Ⅱb期的MMP-9和TGF-βl的表达阳性率显著高于≤Ⅱa期的。MMP-9和TGF-βl与宫颈癌肿瘤的大小和组织病理学分级无显著性差异。结论 :TGF-βl和MMP-9在宫颈病变、宫颈分泌物和血清的中表达与病变良恶性有关,TGF-βl和MMP-9高表达是宫颈恶性肿瘤的表现之一,并且TGF-βl和MMP-9在宫颈分泌物或血清中的表达具有显著相关性。 | 沈浩明 杨友义 吴白平 向延娥 | 2015 | 湖南师范大学学报(医学版)2015,12,6: | 4 |
| 2 | 纤黏连蛋白对舌鳞癌细胞株基质金属蛋白酶-2表达及侵袭力影响的研究显示文摘目的探讨纤黏连蛋白(fibronectin,FN)对舌鳞癌细胞株基质金属蛋白酶(MMP)-2表达及侵袭力的影响。方法对体外培养的舌鳞癌细胞用不同浓度的FN作为刺激因素,采用免疫组化检测癌细胞中MMP-2蛋白含量的变化;采用RT-PCR技术检测癌细胞中MMP-2mRNA含量的变化;采用Westernblot技术检测癌细胞上清液中MMP-2蛋白含量的变化;采用Transwell小室观察细胞的侵袭能力。结果不同浓度的FN(10、5、1μg/ml)作用于人舌鳞癌细胞,MMP-2mRNA、MMP-2蛋白表达和细胞的侵袭能力随FN浓度的降低而降低,差异有显著性(P<0·05),且有剂量依赖关系。结论FN可以诱导舌鳞癌细胞MMP-2的表达及增强其侵袭力。 | 张英 康媛媛 | 2010 | 口腔医学2010,30,2: | 0 |
| 3 | 环氧化酶-2在人肺癌中的表达及其意义(英文)显示文摘Objective: We aimed to examine the expression of cyclooxygenase-2 and the relationship with the pathological types, TNM stage, lymph node metastasis, the degree of differentiation, smoking and the survival. Methods: Immunohistochemical staining method was used to examine the expression of cyclooxygenase-2 of 121 cases of lung cancer and three control groups. The data were statistically analyzed. Results: Compared with the health group, cyclooxygenase-2 was over expressed in the inflammatory tissue(P = 0.036), lung adenocarcinoma(P = 0.005) and squamous carcinoma(P = 0.047). Compared with patients without lymph node metastasis, cyclooxygenase-2 was over expressed(P = 0.033) in patients with lymph node metastasis. Compared with high differentiation group, cyclooxygenase-2 was over expressed(P = 0.004) in low differentiation group. Compared with non-smokers, the expression of cyclooxygenase-2 increased in smokers(P = 0.000). The median survival time of patients that the expression of cyclooxygenase-2 were negative was 9 months(95% CI, 5.6–12.4 months). The median survival time of patients that the expression of cyclooxygenase-2 were positive was 5 months(95% CI, 3–7 months). They was statistical difference(P = 0.001). Conclusion: Overexpression of cyclooxygenase-2 is associated with pathological types, TNM stage, lymph node metastasis, degrees of differentiation, smoking and prognosis in lung cancer. | Weiying Li Wentao Yue Niu Niu Lina Zhang Xiaoting Zhao Li Ma Xuehui Yang Chunyan Zhang Yue Wang Meng Gu | 2014 | The Chinese-German Journal of Clinical Oncology2014,13,5: | 0 |
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