Objective:To investigate the expression of MMP-13 in non-small cell lung cancer(NSCLC),so as to analyze its correlation with prognosis of NSCLC. Methods:MMP-13 expression was detected in 99 NSCLC tissues and 32 normal...Objective:To investigate the expression of MMP-13 in non-small cell lung cancer(NSCLC),so as to analyze its correlation with prognosis of NSCLC. Methods:MMP-13 expression was detected in 99 NSCLC tissues and 32 normal lung tissues by immunohistochemical method. Results:(1) Expression of MMP-13(51.5%,51/99) in cancer tissues was signifi-cantly higher than that in normal tissues 0%(P < 0.05). Expression level of MMP-13 was significantly related to lymph node metastasis and clinical stage(P < 0.01).(2) Kaplan-Meier analysis showed that expression level of MMP-13 was closely cor-relate with the prognosis of NSCLC. Multivariate Cox model analysis suggested that the survival time was significantly related to clinical stage and the expression of MMP-13. Conclusion:MMP-13 is an independent factor that affect prognosis.展开更多
Objective To study the influence of hepatocyte growth factor (HGF) antibody on the lung expression level of matrix metalloproteinases-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1). Methods Thirty male...Objective To study the influence of hepatocyte growth factor (HGF) antibody on the lung expression level of matrix metalloproteinases-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1). Methods Thirty male Wistar rats were randomly divided into 3 groups: control group, model group, and intervention group. Endotoxin was intratracheally infused in the model and intervention groups. HGF antibody was injected in the rats of the intervention group from day 1 to day 14, while the same volume of saline was injected in the control group. The rats were sacrificed on day 28 after endotoxin treatment. The amounts of MMP-9 mRNA and TIMP-1 mRNA were measured by reverse transcription-polymerase chain reaction, and protein expression levels of MMP-9 and TIMP-1 were measured by immunohistochemistry. Results In the model group, both mRNA and protein expression levels of TIMP-1 were significantly increased, the same as MMP-9. In the intervention group, the increase of TIMP-1 was remarkably reduced compared with the model group, while the mRNA and protein expression levels of MMP-9 were still increased. Conclusion HGF activity may accelerate the repair of lung injury through contrary regulating the expression levels of TIMP-1 and MMP-9.展开更多
基金a grant from the Foundation of HuBei Province (No. 2006AA301A05).
文摘Objective:To investigate the expression of MMP-13 in non-small cell lung cancer(NSCLC),so as to analyze its correlation with prognosis of NSCLC. Methods:MMP-13 expression was detected in 99 NSCLC tissues and 32 normal lung tissues by immunohistochemical method. Results:(1) Expression of MMP-13(51.5%,51/99) in cancer tissues was signifi-cantly higher than that in normal tissues 0%(P < 0.05). Expression level of MMP-13 was significantly related to lymph node metastasis and clinical stage(P < 0.01).(2) Kaplan-Meier analysis showed that expression level of MMP-13 was closely cor-relate with the prognosis of NSCLC. Multivariate Cox model analysis suggested that the survival time was significantly related to clinical stage and the expression of MMP-13. Conclusion:MMP-13 is an independent factor that affect prognosis.
文摘Objective To study the influence of hepatocyte growth factor (HGF) antibody on the lung expression level of matrix metalloproteinases-9 (MMP-9) and tissue inhibitor of metalloproteinase-1 (TIMP-1). Methods Thirty male Wistar rats were randomly divided into 3 groups: control group, model group, and intervention group. Endotoxin was intratracheally infused in the model and intervention groups. HGF antibody was injected in the rats of the intervention group from day 1 to day 14, while the same volume of saline was injected in the control group. The rats were sacrificed on day 28 after endotoxin treatment. The amounts of MMP-9 mRNA and TIMP-1 mRNA were measured by reverse transcription-polymerase chain reaction, and protein expression levels of MMP-9 and TIMP-1 were measured by immunohistochemistry. Results In the model group, both mRNA and protein expression levels of TIMP-1 were significantly increased, the same as MMP-9. In the intervention group, the increase of TIMP-1 was remarkably reduced compared with the model group, while the mRNA and protein expression levels of MMP-9 were still increased. Conclusion HGF activity may accelerate the repair of lung injury through contrary regulating the expression levels of TIMP-1 and MMP-9.
