AIM To study the inhibition effect of matrix metalloproteinase inhibitor BB 94 on tumor growth and metastasis using Lweis lung carcinoma. METHODS Lewis lung carcinoma cell suspension [cancer tissue (g)∶physiological ...AIM To study the inhibition effect of matrix metalloproteinase inhibitor BB 94 on tumor growth and metastasis using Lweis lung carcinoma. METHODS Lewis lung carcinoma cell suspension [cancer tissue (g)∶physiological saline(mL) equal to 1∶3 ] were inoculated subcutaneously to 20 mice, they were randomized into 2 groups. From the 2nd day, the treated group was given BB 94 30 mg·kg -1 ip once daily (20 times) and the control group was given vehicle only (phosphate buffered saline, pH 7 4, containing 0 01% Tween 80). On the 22nd day, the weight of the subcutaneous tumor and the lung metastasis rates of the two groups were detected. The results were analyzed by Student t and x 2 test. RESULTS The subcutaneous tumor weight of the control and BB 94 treated group were found to be (6 75±1 45) g and (3 16±1 88) g, respectively( P <0 001). The rate of lung metastasis of the control and treated group was 80%(8/10) and 30%(3/10), respectively( P <0 05). CONCLUSION These results suggest that the matrix metalloproteinase inhibitor BB 94 has strong inhibitory effect both on growth of the primary tumor and pulmonary metastasis of Lewis lung carcinoma.展开更多
目的探讨声带癌前病变组织中基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases 1,TIMP-1)、果蝇母亲DDP同源物4(drosophila mothers against DDP homolog 4,Smad4)表达水平与术后复发和恶变的相关性。方法回顾性分析2018...目的探讨声带癌前病变组织中基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases 1,TIMP-1)、果蝇母亲DDP同源物4(drosophila mothers against DDP homolog 4,Smad4)表达水平与术后复发和恶变的相关性。方法回顾性分析2018年8月~2021年8月郑州大学第一附属医院收治的162例声带癌前病变患者的临床和病理资料,收集手术切除癌前病变组织(癌前病变组)及病变旁正常黏膜组织(对照组),采用免疫组织化学法检测组织中TIMP-1、Smad4表达情况。分析TIMP-1、Smad4阳性率与临床病理特征的关系,并采用Kaplan-Meier法和Cox回归分析法分析其对术后复发和恶变的影响。结果与对照组正常黏膜组织比较,癌前病变组的TIMP-1阳性率较高,Smad4阳性率较低(P<0.05)。不同病变范围、是否累及前连合、不同程度上皮异常增生患者的TIMP-1、Smad4阳性率存在差异(P<0.05)。术后随访时间24~60个月,中位随访时间36个月,随访期间失访患者6例,随访率96.30%(156/162),随访期间术后复发35例(21.60%),术后恶变16例(9.88%);Kaplan-Meier生存分析显示,TIMP-1阳性患者术后复发率和恶变率高于TIMP-1阴性患者(P<0.05);Smad4阴性患者术后复发率和恶变率高于Smad4阳性患者(P<0.05)。多因素Cox回归分析显示,喉咽反流、病变范围>1/2、中/重度异型增生、TIMP-1阳性、Smad4阴性是复发的独立危险因素(P<0.05),年龄>60岁、累及前连合、TIMP-1阳性、Smad4阴性是恶变的独立危险因素(P<0.05)。结论声带癌前病变组织中TIMP-1高表达、Smad4低表达,且TIMP-1阳性、Smad4阴性表达者术后复发和恶变风险较高。展开更多
目的探讨血浆基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases-1,TIMP-1)对阿尔茨海默病(Alzheimer’s disease,AD)的临床诊断价值。方法选取首都医科大学宣武医院2019年1月1日至2022年12月30日收治的AD患者和健康老年...目的探讨血浆基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases-1,TIMP-1)对阿尔茨海默病(Alzheimer’s disease,AD)的临床诊断价值。方法选取首都医科大学宣武医院2019年1月1日至2022年12月30日收治的AD患者和健康老年人143例,其中72例AD患者为AD组,以71例健康老年人为对照组,使用酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)检测脑脊液中磷酸化tau蛋白(phosphorylated tau protein,P-tau)和β-淀粉样蛋白42(β-amyloid protein 42,Aβ42)水平作为纳入AD患者的依据之一,采用Luminex液相芯片分析技术检测血浆中TIMP-1的表达水平。分别对AD患者和对照组的一般资料及血浆TIMP-1水平进行比较。Spearman相关性分析评估血浆TIMP-1水平与MMSE评分相关性。运用受试者操作特征(receiver operating characteristic,ROC)曲线评估TIMP-1单独及联合载脂蛋白Eε4状态诊断AD的价值。结果AD患者血浆中TIMP-1水平明显低于对照组(P<0.0001);血浆TIMP-1水平与简易精神状态检查量表评分呈正相关(rho=0.530,P<0.0001);ROC曲线结果表明,使用血浆TIMP-1表达水平单独或联合载脂蛋白Eε4状态诊断AD的曲线下面积分别为0.875和0.898。结论血浆TIMP-1可作为一种生物标志物,在AD的诊断中起到一定的作用。展开更多
文摘AIM To study the inhibition effect of matrix metalloproteinase inhibitor BB 94 on tumor growth and metastasis using Lweis lung carcinoma. METHODS Lewis lung carcinoma cell suspension [cancer tissue (g)∶physiological saline(mL) equal to 1∶3 ] were inoculated subcutaneously to 20 mice, they were randomized into 2 groups. From the 2nd day, the treated group was given BB 94 30 mg·kg -1 ip once daily (20 times) and the control group was given vehicle only (phosphate buffered saline, pH 7 4, containing 0 01% Tween 80). On the 22nd day, the weight of the subcutaneous tumor and the lung metastasis rates of the two groups were detected. The results were analyzed by Student t and x 2 test. RESULTS The subcutaneous tumor weight of the control and BB 94 treated group were found to be (6 75±1 45) g and (3 16±1 88) g, respectively( P <0 001). The rate of lung metastasis of the control and treated group was 80%(8/10) and 30%(3/10), respectively( P <0 05). CONCLUSION These results suggest that the matrix metalloproteinase inhibitor BB 94 has strong inhibitory effect both on growth of the primary tumor and pulmonary metastasis of Lewis lung carcinoma.
文摘目的探讨声带癌前病变组织中基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases 1,TIMP-1)、果蝇母亲DDP同源物4(drosophila mothers against DDP homolog 4,Smad4)表达水平与术后复发和恶变的相关性。方法回顾性分析2018年8月~2021年8月郑州大学第一附属医院收治的162例声带癌前病变患者的临床和病理资料,收集手术切除癌前病变组织(癌前病变组)及病变旁正常黏膜组织(对照组),采用免疫组织化学法检测组织中TIMP-1、Smad4表达情况。分析TIMP-1、Smad4阳性率与临床病理特征的关系,并采用Kaplan-Meier法和Cox回归分析法分析其对术后复发和恶变的影响。结果与对照组正常黏膜组织比较,癌前病变组的TIMP-1阳性率较高,Smad4阳性率较低(P<0.05)。不同病变范围、是否累及前连合、不同程度上皮异常增生患者的TIMP-1、Smad4阳性率存在差异(P<0.05)。术后随访时间24~60个月,中位随访时间36个月,随访期间失访患者6例,随访率96.30%(156/162),随访期间术后复发35例(21.60%),术后恶变16例(9.88%);Kaplan-Meier生存分析显示,TIMP-1阳性患者术后复发率和恶变率高于TIMP-1阴性患者(P<0.05);Smad4阴性患者术后复发率和恶变率高于Smad4阳性患者(P<0.05)。多因素Cox回归分析显示,喉咽反流、病变范围>1/2、中/重度异型增生、TIMP-1阳性、Smad4阴性是复发的独立危险因素(P<0.05),年龄>60岁、累及前连合、TIMP-1阳性、Smad4阴性是恶变的独立危险因素(P<0.05)。结论声带癌前病变组织中TIMP-1高表达、Smad4低表达,且TIMP-1阳性、Smad4阴性表达者术后复发和恶变风险较高。
文摘目的探讨血浆基质金属蛋白酶抑制剂-1(tissue inhibitor of metalloproteinases-1,TIMP-1)对阿尔茨海默病(Alzheimer’s disease,AD)的临床诊断价值。方法选取首都医科大学宣武医院2019年1月1日至2022年12月30日收治的AD患者和健康老年人143例,其中72例AD患者为AD组,以71例健康老年人为对照组,使用酶联免疫吸附法(enzyme linked immunosorbent assay,ELISA)检测脑脊液中磷酸化tau蛋白(phosphorylated tau protein,P-tau)和β-淀粉样蛋白42(β-amyloid protein 42,Aβ42)水平作为纳入AD患者的依据之一,采用Luminex液相芯片分析技术检测血浆中TIMP-1的表达水平。分别对AD患者和对照组的一般资料及血浆TIMP-1水平进行比较。Spearman相关性分析评估血浆TIMP-1水平与MMSE评分相关性。运用受试者操作特征(receiver operating characteristic,ROC)曲线评估TIMP-1单独及联合载脂蛋白Eε4状态诊断AD的价值。结果AD患者血浆中TIMP-1水平明显低于对照组(P<0.0001);血浆TIMP-1水平与简易精神状态检查量表评分呈正相关(rho=0.530,P<0.0001);ROC曲线结果表明,使用血浆TIMP-1表达水平单独或联合载脂蛋白Eε4状态诊断AD的曲线下面积分别为0.875和0.898。结论血浆TIMP-1可作为一种生物标志物,在AD的诊断中起到一定的作用。
