目的肺癌是目前世界上最常见的恶性肿瘤之一,在中国,云南省宣威地区人群以肺癌高发、恶性程度高、预后极差等特点引起了广泛的关注和研究。在对于宣威肺癌的研究中,一直缺乏特异性高、与病情变化相关性高、检测方法简便快速的肿瘤标志...目的肺癌是目前世界上最常见的恶性肿瘤之一,在中国,云南省宣威地区人群以肺癌高发、恶性程度高、预后极差等特点引起了广泛的关注和研究。在对于宣威肺癌的研究中,一直缺乏特异性高、与病情变化相关性高、检测方法简便快速的肿瘤标志物。肿瘤特异性蛋白70(tumor specific protein 70,SP70)是单克隆抗体NJ001识别的特异性抗原,在非小细胞肺癌组织上的表达率为80%~90%,在肿瘤细胞的恶性增殖和侵袭转移中发挥着极其重要的作用。探索肿瘤标志物SP70与宣威肺癌相关性,有助于此类癌症的早期诊断、动态监测以辅助判断病情进展或治疗效果。因此本文就肿瘤标志物SP70在宣威肺癌诊断中的应用现状,对其特点进行分析,从宣威肺癌的疾病背景、肿瘤标志物SP70与宣威肺癌的相关性及检测方法等方面出发,探究肿瘤标志物SP70在宣威肺癌诊断和治疗中的应用,以期为宣威肺癌的早期诊断和预后判断提供新的思路。展开更多
Background and question: Malignant cells characteristically possess high levels of proteases (e.g. plasminogen activator, cathepsin etc.), which should induce fibrinolysis. The DR- 70(tm) immunoassay quantifies the am...Background and question: Malignant cells characteristically possess high levels of proteases (e.g. plasminogen activator, cathepsin etc.), which should induce fibrinolysis. The DR- 70(tm) immunoassay quantifies the amount of fibrin degradation products (FDP) in the body. This test system has successfully been used for the detection of a number of cancers including lung, stomach, breast, rectum, liver, colon and uterus cancer. In this paper we tested the diagnostic validity of DR- 70(tm) relative to CA- 125 as a tumor marker for the detection of ovarian carcinoma. Methods: We have simultaneously investigated the serum activities of DR- 70(tm)and CA- 125 from 61 preoperative patients with histologically confirmed ovarian carcinoma. One hundred healthy blood donors served as control group. We measured the FDP utilizing the DR- 70(tm) ELISA as per test instructions of its manufacturer AMDL (Tustin, CA, USA). Results: Low levels of FDP measured by DR- 70(tm) have been detected in the serum of 100 apparently healthy persons (mean ± S.D., 0.41 ± 0.19 μ g/ml). Among the 61 ovarian carcinoma patients, DR- 70(tm) mean value (± S.D.) was 7.0 ± 10.5 μ g/ml in a range of 0.6 to 58.5 μ g/ml. The cut- off level for DR- 70(tm) was set at > 1.2 μ g/ml. The specificity was 100% , whereas the sensitivity was at 83.6% . Relative to CA- 125 a cut- off level of > 65 U/ml was applied. The comparable sensitivity of DR- 70(tm) was higher by 13.1 % . Conclusions: Malignant cells with high levels of proteases are significant contributors to fibrinolysis. The DR- 70(tm) immunoassay has been designed to measure the level of FDP in the serum. DR- 70(tm) represents a tumor marker with which ovarian carcinoma can be diagnosed at levels of sensitivity and specificity which compare favorably to those measured with CA- 125.展开更多
文摘目的肺癌是目前世界上最常见的恶性肿瘤之一,在中国,云南省宣威地区人群以肺癌高发、恶性程度高、预后极差等特点引起了广泛的关注和研究。在对于宣威肺癌的研究中,一直缺乏特异性高、与病情变化相关性高、检测方法简便快速的肿瘤标志物。肿瘤特异性蛋白70(tumor specific protein 70,SP70)是单克隆抗体NJ001识别的特异性抗原,在非小细胞肺癌组织上的表达率为80%~90%,在肿瘤细胞的恶性增殖和侵袭转移中发挥着极其重要的作用。探索肿瘤标志物SP70与宣威肺癌相关性,有助于此类癌症的早期诊断、动态监测以辅助判断病情进展或治疗效果。因此本文就肿瘤标志物SP70在宣威肺癌诊断中的应用现状,对其特点进行分析,从宣威肺癌的疾病背景、肿瘤标志物SP70与宣威肺癌的相关性及检测方法等方面出发,探究肿瘤标志物SP70在宣威肺癌诊断和治疗中的应用,以期为宣威肺癌的早期诊断和预后判断提供新的思路。
文摘Background and question: Malignant cells characteristically possess high levels of proteases (e.g. plasminogen activator, cathepsin etc.), which should induce fibrinolysis. The DR- 70(tm) immunoassay quantifies the amount of fibrin degradation products (FDP) in the body. This test system has successfully been used for the detection of a number of cancers including lung, stomach, breast, rectum, liver, colon and uterus cancer. In this paper we tested the diagnostic validity of DR- 70(tm) relative to CA- 125 as a tumor marker for the detection of ovarian carcinoma. Methods: We have simultaneously investigated the serum activities of DR- 70(tm)and CA- 125 from 61 preoperative patients with histologically confirmed ovarian carcinoma. One hundred healthy blood donors served as control group. We measured the FDP utilizing the DR- 70(tm) ELISA as per test instructions of its manufacturer AMDL (Tustin, CA, USA). Results: Low levels of FDP measured by DR- 70(tm) have been detected in the serum of 100 apparently healthy persons (mean ± S.D., 0.41 ± 0.19 μ g/ml). Among the 61 ovarian carcinoma patients, DR- 70(tm) mean value (± S.D.) was 7.0 ± 10.5 μ g/ml in a range of 0.6 to 58.5 μ g/ml. The cut- off level for DR- 70(tm) was set at > 1.2 μ g/ml. The specificity was 100% , whereas the sensitivity was at 83.6% . Relative to CA- 125 a cut- off level of > 65 U/ml was applied. The comparable sensitivity of DR- 70(tm) was higher by 13.1 % . Conclusions: Malignant cells with high levels of proteases are significant contributors to fibrinolysis. The DR- 70(tm) immunoassay has been designed to measure the level of FDP in the serum. DR- 70(tm) represents a tumor marker with which ovarian carcinoma can be diagnosed at levels of sensitivity and specificity which compare favorably to those measured with CA- 125.
