Matrix metalloproteinase-9（MMP-9） and p53 genes play an essential role in the multi-step process of tumorigenesis in lung cancer. Single nucleotide polymorphisms（SNPs） of MMP-9 and p53 genes are associated with th...Matrix metalloproteinase-9（MMP-9） and p53 genes play an essential role in the multi-step process of tumorigenesis in lung cancer. Single nucleotide polymorphisms（SNPs） of MMP-9 and p53 genes are associated with the risk and progression of many cancers. In this study, we evaluated the association of the R279Q polymorphism of MMP-9 or the A1/A2 polymorphism of p53 gcne with the risk of no-small-cell lung cancer（NSCLC） in Han population of Northeast China. We examined the frequency of SNPs in the two kinds of genes of 50 patients with NSCLC and 50 cancer-free controls frequency-matched by age and sex. Polymerase chain reaction-restriction fragment length polymorphism（PCR-RFLP） technique was used to determine the genotypes. The results indicate that the 279RR genotype in MMP-9 gene and the A1/A2 genotype in p53 gene show a significantly increased risk of NSCLC. Therefore, the MMP-9 279RR and p53 A1/A2 genotypes may be used as markers for susceptibility to NSCLC in Han population of Northeast China.展开更多
The recent increase in placenta accreta spectrum has been correlated with a rise in the rate of cesarean sections.A recent study provides evidence that hampered wound healing results in cesarean scar defects that lead...The recent increase in placenta accreta spectrum has been correlated with a rise in the rate of cesarean sections.A recent study provides evidence that hampered wound healing results in cesarean scar defects that lead to a failure in the normal process of decidualization and deeper adherence of trophoblasts.Matrix metalloproteinase(MMP)is crucial in every step of wound healing as it alters the wound matrix,facilitating cell migration,as well as tissue remodeling.MMP-9 expression is higher in placental and decidual tissue in cases of placenta accreta.Based on these findings,assessment of MMP-9 expression can shed new light on the etiopathology of placenta accreta spectrum disorder and can be a potential diagnostic marker.展开更多
目的探讨血清C-反应蛋白(CRP)、降钙素原(PCT)、金属基质蛋白酶-9(MMP-9)在胃癌患者术后吻合口瘘早期的诊断价值。方法收集进行肿瘤切除手术的胃癌患者310例研究对象,根据术后早期是否发生吻合口瘘分为未口瘘组(40例)、口瘘组(270例)。...目的探讨血清C-反应蛋白(CRP)、降钙素原(PCT)、金属基质蛋白酶-9(MMP-9)在胃癌患者术后吻合口瘘早期的诊断价值。方法收集进行肿瘤切除手术的胃癌患者310例研究对象,根据术后早期是否发生吻合口瘘分为未口瘘组(40例)、口瘘组(270例)。采集患者术前,术后1、3、5、7 d血清,采用酶联免疫法检测CRP、PCT、MMP-9表达,制作受试者工作特征曲线(ROC)评估CRP、PCT及MMP-9在胃癌术后吻合口瘘中最佳截断值,以组织病理结果作为金标准,评估三项指标单项检测以及联合检测诊断效能。结果与未口瘘组相比,口瘘组术前、术后1 d CRP、PCT、MMP-9水平比较差异无统计学意义(P>0.05),术后3、5、7 d三项指标水平均升高(P<0.05)。ROC曲线分析显示,术后3 d CRP、PCT、MMP-9诊断胃癌术后吻合口瘘的AUC分别为0.784、0.712、0.827(P<0.05),截断值分别为28.16、5.42、65.32,敏感性分别为72.50%、70.00%、75.00%,特异性分别为78.89%、82.22%、84.81%;与单项检测相比,联合检测在胃癌术后吻合口瘘中准确度、灵敏度、特异度均升高(P<0.05)。结论血清CRP、PCT、MMP-9在胃癌术后吻合口瘘中均具有诊断价值,三项联合诊断后诊断效能进一步提高,为临床胃癌术后吻合口瘘诊断提供一定的参考。展开更多
Objective： Many studies reported that matrix metalloproteinase-9 （MMP-9） participated in the development of esophageal squamous cell carcinoma （ESCC） and resulted in poor prognosis, however, they all included few...Objective： Many studies reported that matrix metalloproteinase-9 （MMP-9） participated in the development of esophageal squamous cell carcinoma （ESCC） and resulted in poor prognosis, however, they all included few patients and had inconsistent results. So we conducted a meta-analysis to explore the correlation between overexpression of MMP-9 and the clinicopathological characteristics and overall survival （OS） of ESCC. Methods： PubMed, EMBASE, Web of Science, Chinese Biomedical Literature Database, Google Scholar and other databases were searched for relevant studies. The Newcastle-Ottawa quality assessment scale was used to assess the methodological quality of included study and RevMan 5.2 software was used to conduct meta-analysis. Results： A total of 35 studies were included, and the results of meta-analysis showed that overexpression of MMP-9 was associated with grade of differentiation [well/moderate vs. poor： odds ratio （OR）： 0.39, 95% confidence interval （CI）： 0.29-0.52; P〈0.00001], lymph node metastasis （negative vs. positive： OR： 0.24, 95% CI： 0.16-0.34; P〈0.00001）, TNM stage （T1/T2 vs. T3/T4： OR： 0.28, 95% CI： 0.14-0.54; P=0.0002）, the depth of invasion （T1/T2 vs. T3/T4： OR： 0.29, 95% CI： 0.17-0.49; P〈0.00001）, and vascular invasion of ESCC （negative vs. positive： OR： 0.35, 95% CI： 0.21-0.58; P〈0.0001）, and also associated with poor overall survival ofESCC （HR： 2.17, 95% CI： 1.32-3.57; P=0.002）. Subgroup analysis showed that more than 10% of carcinoma cell staining was associated with significant increase of mortality risk （HR： 2.44, 95 % CI： 1.16-5.15; P=0.02）, and sensitive analysis suggested that MMP-9 was an independent prognostic factor in ESCC （HR： 1.49, 95% CI： 1.16-1.91; P=0.002）. Conclusions：On the basis of limited evidence, overexpression of MMP-9 may be a potential independent prognosis factor of ESCC patients in Asia, and high-quality studies assessing the prognostic significance of MMP-9 for ESCC patients are still needed.展开更多
文摘Matrix metalloproteinase-9（MMP-9） and p53 genes play an essential role in the multi-step process of tumorigenesis in lung cancer. Single nucleotide polymorphisms（SNPs） of MMP-9 and p53 genes are associated with the risk and progression of many cancers. In this study, we evaluated the association of the R279Q polymorphism of MMP-9 or the A1/A2 polymorphism of p53 gcne with the risk of no-small-cell lung cancer（NSCLC） in Han population of Northeast China. We examined the frequency of SNPs in the two kinds of genes of 50 patients with NSCLC and 50 cancer-free controls frequency-matched by age and sex. Polymerase chain reaction-restriction fragment length polymorphism（PCR-RFLP） technique was used to determine the genotypes. The results indicate that the 279RR genotype in MMP-9 gene and the A1/A2 genotype in p53 gene show a significantly increased risk of NSCLC. Therefore, the MMP-9 279RR and p53 A1/A2 genotypes may be used as markers for susceptibility to NSCLC in Han population of Northeast China.
文摘The recent increase in placenta accreta spectrum has been correlated with a rise in the rate of cesarean sections.A recent study provides evidence that hampered wound healing results in cesarean scar defects that lead to a failure in the normal process of decidualization and deeper adherence of trophoblasts.Matrix metalloproteinase(MMP)is crucial in every step of wound healing as it alters the wound matrix,facilitating cell migration,as well as tissue remodeling.MMP-9 expression is higher in placental and decidual tissue in cases of placenta accreta.Based on these findings,assessment of MMP-9 expression can shed new light on the etiopathology of placenta accreta spectrum disorder and can be a potential diagnostic marker.
文摘目的探讨血清C-反应蛋白(CRP)、降钙素原(PCT)、金属基质蛋白酶-9(MMP-9)在胃癌患者术后吻合口瘘早期的诊断价值。方法收集进行肿瘤切除手术的胃癌患者310例研究对象,根据术后早期是否发生吻合口瘘分为未口瘘组(40例)、口瘘组(270例)。采集患者术前,术后1、3、5、7 d血清,采用酶联免疫法检测CRP、PCT、MMP-9表达,制作受试者工作特征曲线(ROC)评估CRP、PCT及MMP-9在胃癌术后吻合口瘘中最佳截断值,以组织病理结果作为金标准,评估三项指标单项检测以及联合检测诊断效能。结果与未口瘘组相比,口瘘组术前、术后1 d CRP、PCT、MMP-9水平比较差异无统计学意义(P>0.05),术后3、5、7 d三项指标水平均升高(P<0.05)。ROC曲线分析显示,术后3 d CRP、PCT、MMP-9诊断胃癌术后吻合口瘘的AUC分别为0.784、0.712、0.827(P<0.05),截断值分别为28.16、5.42、65.32,敏感性分别为72.50%、70.00%、75.00%,特异性分别为78.89%、82.22%、84.81%;与单项检测相比,联合检测在胃癌术后吻合口瘘中准确度、灵敏度、特异度均升高(P<0.05)。结论血清CRP、PCT、MMP-9在胃癌术后吻合口瘘中均具有诊断价值,三项联合诊断后诊断效能进一步提高,为临床胃癌术后吻合口瘘诊断提供一定的参考。
文摘Objective： Many studies reported that matrix metalloproteinase-9 （MMP-9） participated in the development of esophageal squamous cell carcinoma （ESCC） and resulted in poor prognosis, however, they all included few patients and had inconsistent results. So we conducted a meta-analysis to explore the correlation between overexpression of MMP-9 and the clinicopathological characteristics and overall survival （OS） of ESCC. Methods： PubMed, EMBASE, Web of Science, Chinese Biomedical Literature Database, Google Scholar and other databases were searched for relevant studies. The Newcastle-Ottawa quality assessment scale was used to assess the methodological quality of included study and RevMan 5.2 software was used to conduct meta-analysis. Results： A total of 35 studies were included, and the results of meta-analysis showed that overexpression of MMP-9 was associated with grade of differentiation [well/moderate vs. poor： odds ratio （OR）： 0.39, 95% confidence interval （CI）： 0.29-0.52; P〈0.00001], lymph node metastasis （negative vs. positive： OR： 0.24, 95% CI： 0.16-0.34; P〈0.00001）, TNM stage （T1/T2 vs. T3/T4： OR： 0.28, 95% CI： 0.14-0.54; P=0.0002）, the depth of invasion （T1/T2 vs. T3/T4： OR： 0.29, 95% CI： 0.17-0.49; P〈0.00001）, and vascular invasion of ESCC （negative vs. positive： OR： 0.35, 95% CI： 0.21-0.58; P〈0.0001）, and also associated with poor overall survival ofESCC （HR： 2.17, 95% CI： 1.32-3.57; P=0.002）. Subgroup analysis showed that more than 10% of carcinoma cell staining was associated with significant increase of mortality risk （HR： 2.44, 95 % CI： 1.16-5.15; P=0.02）, and sensitive analysis suggested that MMP-9 was an independent prognostic factor in ESCC （HR： 1.49, 95% CI： 1.16-1.91; P=0.002）. Conclusions：On the basis of limited evidence, overexpression of MMP-9 may be a potential independent prognosis factor of ESCC patients in Asia, and high-quality studies assessing the prognostic significance of MMP-9 for ESCC patients are still needed.
