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
AIM: To explore the correlation between Twist-related protein (Twist)1, fibroblast growth factor receptor (FGFR)2 and gastric adenocarcinoma differentiation and progression.
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.
文摘目的:探讨姜黄素类似物对糖尿病肾病(DN)小鼠肾纤维化的影响及机制。方法:KKAy小鼠给予高脂饲料连续饲养2周构建DN小鼠模型,随机分为模型组和实验组,每组12只,10只C57BL/6J小鼠饲喂普通饲料,作为正常组。实验组小鼠灌胃姜黄素类似物H85 mg/kg,模型组和正常组均灌胃等量生理盐水,1次/d,连续干预6周。采用血糖仪检测小鼠空腹血糖(FBG),双缩脲法检测处死前24 h尿液尿蛋白(UP);过碘酸-无色品红染色(PAS染色)观察小鼠肾组织病理形态变化;蛋白免疫印迹(WB)法及实时荧光定量-聚合酶链式反应(qPCR)检测各组小鼠肾组织α-平滑肌肌动蛋白(α-SMA)、纤连蛋白(FN)和IV型胶原(Col-Ⅳ)、Twist蛋白表达情况。结果:干预后,正常组、模型组和实验组小鼠肾脏指数(KI)分别为(6.24±0.32)、(14.4±2.39)、(9.14±1.43)mg/g,FBG分别为(4.96±1.25),(35.54±3.43),(27.54±1.12)mmol/L,24 h UP分别为(31.69±5.51)、(710.54±231.28)、(410.43±130.36)μmol/L;肾小球硬化评分分别为(0.00±0.00)、(3.02±0.24)、(1.69±0.21)分,组间差异有统计学意义(P<0.05)。与正常组比较,模型组小鼠肾组织α-SMA、FN和Col-Ⅳ、Twist蛋白及mRNA相对表达量升高(P<0.05),而实验组小鼠低于模型组(P<0.05)。结论:姜黄素类似物可改善DN小鼠肾功能及肾组织损伤程度,降低纤维化蛋白表达,延缓肾组织纤维化,可能与下调Twist蛋白表达有关。
基金Supported by Medicine and Sanitation Development Project of Shandong Province,No.2014WS0323
文摘AIM: To explore the correlation between Twist-related protein (Twist)1, fibroblast growth factor receptor (FGFR)2 and gastric adenocarcinoma differentiation and progression.
