Objective:To study the expression of E-cadherin,N-cadherin,TGF-|3 1 and Twist protein and investigate its significance in the occurrence and development of prostate cancer.Methods:The expression of E-cadherin,N-cadher...Objective:To study the expression of E-cadherin,N-cadherin,TGF-|3 1 and Twist protein and investigate its significance in the occurrence and development of prostate cancer.Methods:The expression of E-cadherin,N-cadherin,TGF-β1 and Twist protein in 59 prostate cancer tissues and 21 adjacent tissues were detected by immunohistochemical SABC staining,and the correlation with clinicopathological features was analyzed.Results:Positive rates of E-cadherin,N-cadherin,TGF-β1 and Twist were 32.2%,54.2%,71.2%and 74.6%,respectively,in prostate cancer tissues and 85.7%,9.52%,19.0%and 9.52%,respectively,in cancer—adjacent tissues,with significant differences between the two groups(P<0.05).The reduced expression of E-cadherin was related to the differentiation of prostate cancer tissues and PSA level,but was not associated with clinical stage,lymph node metastasis,bony metastasis and age.The increased expression of N-cadherin,TGF-β1 and Twist was related to the differentiation of prostate cancer tissues,clinical stage,lymph node metastasis,bony metastasis,but not to age.The difference in positive expression of N-cadherin and TGF-β1 was significant between PSA≤20μg/L group and PSA>20μg/L group,but the positive expression of Twist was not significant between groups.The expression of E-cadherin was highly negatively correlated with that of N-cadherin and also highly negatively correlated with that of Twist The expression of TGF-β1 was correlated with those of E-cadherin,N-cadherin and Twist.Conclusions:The reduced expression of E-cadherin,abnormal expression of N-cadherin,transformation form E-cadherin to N-cadherin and the increased expression of TGF-β1 and Twist play an important role in the occurrence and development of prostate cancer.展开更多
目的:探讨真实世界中程序性细胞死亡蛋白1(programmed cell death protein-1,PD-1)抑制剂在晚期癌症患者治疗中的有效性和安全性。方法:收集2018年5月—2019年9月由上海交通大学医学院附属仁济医院肿瘤科收治的,接受PD-1抑制剂单药或联...目的:探讨真实世界中程序性细胞死亡蛋白1(programmed cell death protein-1,PD-1)抑制剂在晚期癌症患者治疗中的有效性和安全性。方法:收集2018年5月—2019年9月由上海交通大学医学院附属仁济医院肿瘤科收治的,接受PD-1抑制剂单药或联合抗肿瘤治疗晚期癌症患者的资料。回顾性分析了所有病例资料的临床病例特征、治疗疗效及不良事件。结果:本研究共收集了75例晚期肿瘤患者的临床资料,平均年龄为60岁,其中男性和女性患者分别为53例和22例,发生转移者60例。肺癌27例,胃癌12例,占比最高;其他肿瘤类型包括消化系统肿瘤(结直肠癌、肝癌、胰腺癌、食管癌和胆管癌)、泌尿系统肿瘤(肾癌、肾盂癌、输尿管癌和膀胱癌)、女性生殖系统肿瘤(乳腺癌、宫颈癌和卵巢癌)、恶性黑素瘤以及头颈部肿瘤(鼻咽癌和喉癌)。共有55例患者(73.3%)接受PD-1抑制剂作为一线和(或)二线治疗,同时联合其他抗癌治疗的患者为62例(82.7%)。客观缓解率为14.5%,疾病控制率为65.2%,中位无进展生存期为6.1个月[95%置信区间(confidence interval,CI):4.356~7.844],中位总生存期为18.0个月(95%CI:9.565~26.435)。共55例有不良事件发生,主要为1级或2级。使用PD-1抑制剂作为一线和(或)二线治疗患者无进展生存期为6.3个月,明显长于使用PD-1抑制剂作为三线或多线治疗患者的3.0个月[风险比(hazard ratio,HR)=0.492,95%CI:0.244~0.992,P=0.048]。结论:真实世界中PD-1抑制剂治疗晚期癌症患者有效且安全。将PD-1抑制剂作为一线和(或)二线治疗患者的获益更多。展开更多
文摘Objective:To study the expression of E-cadherin,N-cadherin,TGF-|3 1 and Twist protein and investigate its significance in the occurrence and development of prostate cancer.Methods:The expression of E-cadherin,N-cadherin,TGF-β1 and Twist protein in 59 prostate cancer tissues and 21 adjacent tissues were detected by immunohistochemical SABC staining,and the correlation with clinicopathological features was analyzed.Results:Positive rates of E-cadherin,N-cadherin,TGF-β1 and Twist were 32.2%,54.2%,71.2%and 74.6%,respectively,in prostate cancer tissues and 85.7%,9.52%,19.0%and 9.52%,respectively,in cancer—adjacent tissues,with significant differences between the two groups(P<0.05).The reduced expression of E-cadherin was related to the differentiation of prostate cancer tissues and PSA level,but was not associated with clinical stage,lymph node metastasis,bony metastasis and age.The increased expression of N-cadherin,TGF-β1 and Twist was related to the differentiation of prostate cancer tissues,clinical stage,lymph node metastasis,bony metastasis,but not to age.The difference in positive expression of N-cadherin and TGF-β1 was significant between PSA≤20μg/L group and PSA>20μg/L group,but the positive expression of Twist was not significant between groups.The expression of E-cadherin was highly negatively correlated with that of N-cadherin and also highly negatively correlated with that of Twist The expression of TGF-β1 was correlated with those of E-cadherin,N-cadherin and Twist.Conclusions:The reduced expression of E-cadherin,abnormal expression of N-cadherin,transformation form E-cadherin to N-cadherin and the increased expression of TGF-β1 and Twist play an important role in the occurrence and development of prostate cancer.
