目的从TGF-α、TGF-β配体成员(TGF-β1、TGF-β2、TGF-β3)、TIMP-1、TIMP-2、MMP-2筛选在非小细胞肺癌(NSCLC)中mRNA水平异常表达的细胞因子,并探讨其临床意义。方法实时定量PCR法检测NSCLC组织和毗邻正常组织中TGF-α、TGF-β1、TGF-...目的从TGF-α、TGF-β配体成员(TGF-β1、TGF-β2、TGF-β3)、TIMP-1、TIMP-2、MMP-2筛选在非小细胞肺癌(NSCLC)中mRNA水平异常表达的细胞因子,并探讨其临床意义。方法实时定量PCR法检测NSCLC组织和毗邻正常组织中TGF-α、TGF-β1、TGF-β2、TGF-β3、TIMP-1、TIMP-2、MMP-2 mRNA表达量,并研究其与患者临床病理特征之间的关系。结果 NSCLC组织中TGF-α、TGF-β1表达量均明显高于正常组织(0.046 vs 0.005,P<0.01;16.91 vs 11.76,P=0.04),TIMP-2水平降低(25.23 vs 207.85,P=0.02),而NSCLC中MMP-2/TIMP-2显著高于正常肺组织(0.77 vs 0.02,P=0.04)。III-IV期NSCLC组织的TGF-α水平高于III期(0.06 vs 0.02,P<0.01)。有淋巴结转移组TGF-β1水平高于无淋巴结转移组(17.70 vs 10.00,P<0.01)。鳞癌组织中TIMP-2水平低于腺癌组织(20.06 vs 33.51,P=0.02),无淋巴结转移组TIMP-2水平高于有淋巴结转移组(30.02 vs 20.56,P=0.03)。结论 TGF-α与NSCLC进展密切相关;TGF-β1在NSCLC的发生、发展、侵袭转移中发挥重要作用;MMP-2/TIMP-2可能是较敏感的肿瘤生物学指标,且TIMP-2与NSCLC侵袭转移相关,相对高表达的TIMP-2可能提示腺癌。展开更多
Objective To study the expressions of MMP-2 and TIMP-2 mRNA on cultured rat mesangial cells (MsC) and in human diseased glomeruli, and to explore their significance in the development of glomerulosclerosis. Methods Th...Objective To study the expressions of MMP-2 and TIMP-2 mRNA on cultured rat mesangial cells (MsC) and in human diseased glomeruli, and to explore their significance in the development of glomerulosclerosis. Methods The expressions of MMP-2, TIMP-2, and Col ⅣmRNA on cultured rat MsC stimulated by IL-1 or/and TGF-β1were investigated through Northern blot analysis. The levels of MMP-2 and TIMP-2 mRNA expressions and immunoreacti-vity of PCNA and Col Ⅳin human diseased glomeruli from renal biopsies of lupus nephritis (LN) patients were examined by insituhybridization and immunohistochemistry, respectively. Results The levels of MMP-2, TIMP-2, and Col ⅣmRNA expressions were markedly increased on cultured rat MsC stimulated by IL-1 or/and TGF-β1. Meanwhile, upregulation of MMP-2 and TIMP-2 mRNA expressions was confirmed in diseased glomeruli from patients with various subtypes of LN, and was closely related to the positive cell number of PCNA presentation and deposition of Col Ⅳin glomeruli. Conclusion The results suggest that the over-expressions of MMP-2 and TIMP-2 mRNA on glomerular cells might play a critical role in the development of glomerulosclerosis.展开更多
Objective:The aim of the study was to investigate the expressions of matrix metalloproteinase-2(MMP-2) and tissue inhibitor of MMP-2(TIMP-2) mRNA in transitional cell carcinomas of bladder and discuss their clinical s...Objective:The aim of the study was to investigate the expressions of matrix metalloproteinase-2(MMP-2) and tissue inhibitor of MMP-2(TIMP-2) mRNA in transitional cell carcinomas of bladder and discuss their clinical significances.Methods:Using RT-PCR and real time quantitative PCR(RQ-PCR) technique,the expressions of MMP-2 and TIMP-2 mRNA of 45 cases of bladder carcinoma(tumor group) and 10 cases of normal bladder tissue(control group) were analyzed.Results:MMP-2 and TIMP-2 were not expressed in control group.MMP-2 was expressed in 30 cases tumor samples and TIMP-2 was expressed in 26 cases.The expression of MMP-2 mRNA in non-muscle invasive bladder cancers and grade I cancers was lower than that in muscle invasive bladder cancers and grades II-III cancers respectively.The differences were statistically significant(P<0.05).The expression of MMP-2 in recurrent patients was higher than that in incipient patients.TIMP-2 mRNA expression decreased with grades and stage.The expression of TIMP-2 in non-muscle invasive bladder cancers and grade I cancers was higher than that in muscle invasive bladder cancers and grades II-III cancers respectively.There was statistical difference between two groups(P < 0.05).TIMP-2 expression in incipient patients was higher than that in recurrent patients,but the difference was not significant(P>0.05).Conclusion:These results suggest that MMP-2 and TIMP-2 play an important role in the invasion step of transitional cell carcinoma of bladder.MMP-2 may become a new approach to the diagnosis of bladder carcinoma.展开更多
Zymography and in situ hybridization were used to investigate matrixmetalloproteinase -2, -9 (MMP -2, MMP-9) activities and expressions of MMP -2, -9 and TIMP1, -2, -3 (tissue inhibitors of matrix metallo-proteinases)...Zymography and in situ hybridization were used to investigate matrixmetalloproteinase -2, -9 (MMP -2, MMP-9) activities and expressions of MMP -2, -9 and TIMP1, -2, -3 (tissue inhibitors of matrix metallo-proteinases) mRNA in the rat uterus during estrouscycle. The relative activity was semiquanted by using densitometric analysis. The MMP-2(67 kDa) activity in every stage during estrpus cycle was detected by zymography. MMP-2activity was highest at proestrus; higher at estrus and metaestrus; lowest at diestrus. Throughin situ hybridization, MMP -2, -9, TIMP -1~ -3 mRNA mainly in hasal stroma cells of uterineendometrium were detected. The positive signals of MMP -2 and -9 mRNAs in hasal stromacells were shown stronger at proestrus, estrus and metaestrus while they showed the weakest atdiestrus. The expression of MMP -2 mRNA coincided with MMP -2 activity change. MMP-2and -9 mRNAs were also highly expressed in uterine circular muscle at estrus. Weak signals ofMMP -9 mRNA were detected in uterine luminal and glandular epithelial cells at estrus.TIMP -1 mRNA in hasal stroma cells was shown as the strongest expression at estrus andmetaestrus; stronger at proestrus and the weakest at diestrus. TIMP-2 mRNA in basal stromacells was stronger at estrus and diestrus; weaker at proestrus and metaestrus. TIMP -1 and -2mRNAs were also highly expressed in uterine luminal and glandular epithelial cells at estrus.TIMP -3 mRNA in hasal stroma cells revealed the strongest expression at estrus; stronger atdiestrus and metaestrus and showed the weakest at proestrus. The mRNA was also highlyexpressed in uterine circular muscle at estrus. In short, our present results provide evidencethat MMP -2, -9 and TIMP -1~ -3 were involved in rat uterine endometrium reconstructionduring estrous cycle.展开更多
文摘目的从TGF-α、TGF-β配体成员(TGF-β1、TGF-β2、TGF-β3)、TIMP-1、TIMP-2、MMP-2筛选在非小细胞肺癌(NSCLC)中mRNA水平异常表达的细胞因子,并探讨其临床意义。方法实时定量PCR法检测NSCLC组织和毗邻正常组织中TGF-α、TGF-β1、TGF-β2、TGF-β3、TIMP-1、TIMP-2、MMP-2 mRNA表达量,并研究其与患者临床病理特征之间的关系。结果 NSCLC组织中TGF-α、TGF-β1表达量均明显高于正常组织(0.046 vs 0.005,P<0.01;16.91 vs 11.76,P=0.04),TIMP-2水平降低(25.23 vs 207.85,P=0.02),而NSCLC中MMP-2/TIMP-2显著高于正常肺组织(0.77 vs 0.02,P=0.04)。III-IV期NSCLC组织的TGF-α水平高于III期(0.06 vs 0.02,P<0.01)。有淋巴结转移组TGF-β1水平高于无淋巴结转移组(17.70 vs 10.00,P<0.01)。鳞癌组织中TIMP-2水平低于腺癌组织(20.06 vs 33.51,P=0.02),无淋巴结转移组TIMP-2水平高于有淋巴结转移组(30.02 vs 20.56,P=0.03)。结论 TGF-α与NSCLC进展密切相关;TGF-β1在NSCLC的发生、发展、侵袭转移中发挥重要作用;MMP-2/TIMP-2可能是较敏感的肿瘤生物学指标,且TIMP-2与NSCLC侵袭转移相关,相对高表达的TIMP-2可能提示腺癌。
基金Supported by Shanghai Municipal Science and Technology Develop-ment Funds (01JC14018).
文摘Objective To study the expressions of MMP-2 and TIMP-2 mRNA on cultured rat mesangial cells (MsC) and in human diseased glomeruli, and to explore their significance in the development of glomerulosclerosis. Methods The expressions of MMP-2, TIMP-2, and Col ⅣmRNA on cultured rat MsC stimulated by IL-1 or/and TGF-β1were investigated through Northern blot analysis. The levels of MMP-2 and TIMP-2 mRNA expressions and immunoreacti-vity of PCNA and Col Ⅳin human diseased glomeruli from renal biopsies of lupus nephritis (LN) patients were examined by insituhybridization and immunohistochemistry, respectively. Results The levels of MMP-2, TIMP-2, and Col ⅣmRNA expressions were markedly increased on cultured rat MsC stimulated by IL-1 or/and TGF-β1. Meanwhile, upregulation of MMP-2 and TIMP-2 mRNA expressions was confirmed in diseased glomeruli from patients with various subtypes of LN, and was closely related to the positive cell number of PCNA presentation and deposition of Col Ⅳin glomeruli. Conclusion The results suggest that the over-expressions of MMP-2 and TIMP-2 mRNA on glomerular cells might play a critical role in the development of glomerulosclerosis.
文摘Objective:The aim of the study was to investigate the expressions of matrix metalloproteinase-2(MMP-2) and tissue inhibitor of MMP-2(TIMP-2) mRNA in transitional cell carcinomas of bladder and discuss their clinical significances.Methods:Using RT-PCR and real time quantitative PCR(RQ-PCR) technique,the expressions of MMP-2 and TIMP-2 mRNA of 45 cases of bladder carcinoma(tumor group) and 10 cases of normal bladder tissue(control group) were analyzed.Results:MMP-2 and TIMP-2 were not expressed in control group.MMP-2 was expressed in 30 cases tumor samples and TIMP-2 was expressed in 26 cases.The expression of MMP-2 mRNA in non-muscle invasive bladder cancers and grade I cancers was lower than that in muscle invasive bladder cancers and grades II-III cancers respectively.The differences were statistically significant(P<0.05).The expression of MMP-2 in recurrent patients was higher than that in incipient patients.TIMP-2 mRNA expression decreased with grades and stage.The expression of TIMP-2 in non-muscle invasive bladder cancers and grade I cancers was higher than that in muscle invasive bladder cancers and grades II-III cancers respectively.There was statistical difference between two groups(P < 0.05).TIMP-2 expression in incipient patients was higher than that in recurrent patients,but the difference was not significant(P>0.05).Conclusion:These results suggest that MMP-2 and TIMP-2 play an important role in the invasion step of transitional cell carcinoma of bladder.MMP-2 may become a new approach to the diagnosis of bladder carcinoma.
文摘Zymography and in situ hybridization were used to investigate matrixmetalloproteinase -2, -9 (MMP -2, MMP-9) activities and expressions of MMP -2, -9 and TIMP1, -2, -3 (tissue inhibitors of matrix metallo-proteinases) mRNA in the rat uterus during estrouscycle. The relative activity was semiquanted by using densitometric analysis. The MMP-2(67 kDa) activity in every stage during estrpus cycle was detected by zymography. MMP-2activity was highest at proestrus; higher at estrus and metaestrus; lowest at diestrus. Throughin situ hybridization, MMP -2, -9, TIMP -1~ -3 mRNA mainly in hasal stroma cells of uterineendometrium were detected. The positive signals of MMP -2 and -9 mRNAs in hasal stromacells were shown stronger at proestrus, estrus and metaestrus while they showed the weakest atdiestrus. The expression of MMP -2 mRNA coincided with MMP -2 activity change. MMP-2and -9 mRNAs were also highly expressed in uterine circular muscle at estrus. Weak signals ofMMP -9 mRNA were detected in uterine luminal and glandular epithelial cells at estrus.TIMP -1 mRNA in hasal stroma cells was shown as the strongest expression at estrus andmetaestrus; stronger at proestrus and the weakest at diestrus. TIMP-2 mRNA in basal stromacells was stronger at estrus and diestrus; weaker at proestrus and metaestrus. TIMP -1 and -2mRNAs were also highly expressed in uterine luminal and glandular epithelial cells at estrus.TIMP -3 mRNA in hasal stroma cells revealed the strongest expression at estrus; stronger atdiestrus and metaestrus and showed the weakest at proestrus. The mRNA was also highlyexpressed in uterine circular muscle at estrus. In short, our present results provide evidencethat MMP -2, -9 and TIMP -1~ -3 were involved in rat uterine endometrium reconstructionduring estrous cycle.
