目的:构建高迁移率族蛋白B2(high mobility group box2,HMGB2)启动子荧光素酶报告基因载体,并对其进行活性验证,预测可能与HMGB2启动子结合的转录因子。方法:在NCBI Genbank数据库中查询HMGB2基因启动子区域序列,运用PCR扩增HMGB2启动...目的:构建高迁移率族蛋白B2(high mobility group box2,HMGB2)启动子荧光素酶报告基因载体,并对其进行活性验证,预测可能与HMGB2启动子结合的转录因子。方法:在NCBI Genbank数据库中查询HMGB2基因启动子区域序列,运用PCR扩增HMGB2启动子序列片段,将其克隆至pGL3-Basic载体中,构建重组质粒pGL3-HMGB2-promoter,并通过双酶切和测定核酸序列鉴定。采用虫荧光素酶报告实验验证pGL3-HMGB2-promoter重组质粒的活性,进一步通过在线软件PROMO预测可以与HMGB2启动子序列结合的转录因子。结果:经限制性内切酶酶切鉴定和核酸序列比对,证实pGL3-HMGB2-promoter重组质粒构建成功。虫荧光素酶报告实验结果显示,构建的重组质粒具有启动子活性。PROMO在线软件分析结果表明,有72个转录因子可能与HMGB2启动子序列结合。结论:成功构建了含有HMGB2启动子序列的荧光素酶报告基因重组质粒,该质粒具有启动子活性,且有72个转录因子可能与HMGB2启动子序列结合,促进HMGB2的转录。展开更多
目的:检测卵巢上皮性癌中Yes相关蛋白1(Yes-associated protein1,YAP1)和Y染色体性别决定区相关的高迁移率族盒蛋白2(sex-determing region of Y chromosome related high mobility group box 2,SOX2)的表达及意义。方法:选取86例卵巢...目的:检测卵巢上皮性癌中Yes相关蛋白1(Yes-associated protein1,YAP1)和Y染色体性别决定区相关的高迁移率族盒蛋白2(sex-determing region of Y chromosome related high mobility group box 2,SOX2)的表达及意义。方法:选取86例卵巢上皮性癌组织和20例行卵巢活检的正常卵巢组织(少数局灶伴良性上皮性囊肿),采用免疫组织化学法检测YAP1和SOX2的表达;记录并统计86例卵巢癌患者的生存时间、肿瘤相关的临床病理参数,分析其与YAP1高表达的关系;建立SOX2稳定转染的卵巢上皮癌细胞株,免疫印迹法检测SOX2及YAP1的表达,划痕实验检测SOX2过表达细胞的迁移能力。结果:卵巢上皮性癌中YAP1和SOX2的高表达率明显高于正常卵巢组织(P均<0.01);YAP1高表达患者生存时间明显短于低表达者(P<0.01);卵巢上皮性癌组织中YAP1高表达与年龄无关,但与化疗耐药、肿瘤转移、FIGO分期、组织分化相关。YAP1和SOX2表达与卵巢上皮性癌相关,且两者表达呈正相关(r=0.635,P<0.01)。与对照组比较,SOX2过表达细胞中YAP1蛋白表达明显增加(t=6.304,P<0.01),细胞迁移能力明显提高(t=11.77,P<0.01)。结论:YAP1和SOX2在卵巢上皮性癌中呈高表达,且与卵巢上皮性癌发生发展相关。展开更多
Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources...Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources： The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were ＂SOX2,＂ ＂cancer,＂ ＂tumor＂ or ＂CSCs.＂ Study Selection： Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. Results： SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRV-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. Conclusions： Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology ofneoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, P13K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy.展开更多
【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中S...【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中Sox2的表达水平,采用SPSS13.0统计软件分析肿瘤组织Sox2与临床病理因素及患者总生存时间的关系。【结果】Sox2在人肾癌组织中的表达明显高于癌旁正常组织(P<0.05);随TNM分期的递增(P=0.027)、淋巴结转移的出现(P=0.010)以及Ki-67表达(P=0.037)的增加,Sox2表达水平逐渐升高,各组间有显著相关性;Sox2表达阳性的肾癌患者,术后五年生存率较低(P=0.017);Sox2的表达与患者性别、年龄、肿瘤直径及组织类型无显著相关性。【结论】Sox2的表达与临床病理因素及预后有一定关系,其高表达可能在肾癌发生、发展中起重要作用,并很可能成为潜在的治疗靶点及预测肾癌预后的有价值的分子标记物。展开更多
文摘目的:构建高迁移率族蛋白B2(high mobility group box2,HMGB2)启动子荧光素酶报告基因载体,并对其进行活性验证,预测可能与HMGB2启动子结合的转录因子。方法:在NCBI Genbank数据库中查询HMGB2基因启动子区域序列,运用PCR扩增HMGB2启动子序列片段,将其克隆至pGL3-Basic载体中,构建重组质粒pGL3-HMGB2-promoter,并通过双酶切和测定核酸序列鉴定。采用虫荧光素酶报告实验验证pGL3-HMGB2-promoter重组质粒的活性,进一步通过在线软件PROMO预测可以与HMGB2启动子序列结合的转录因子。结果:经限制性内切酶酶切鉴定和核酸序列比对,证实pGL3-HMGB2-promoter重组质粒构建成功。虫荧光素酶报告实验结果显示,构建的重组质粒具有启动子活性。PROMO在线软件分析结果表明,有72个转录因子可能与HMGB2启动子序列结合。结论:成功构建了含有HMGB2启动子序列的荧光素酶报告基因重组质粒,该质粒具有启动子活性,且有72个转录因子可能与HMGB2启动子序列结合,促进HMGB2的转录。
文摘目的:检测卵巢上皮性癌中Yes相关蛋白1(Yes-associated protein1,YAP1)和Y染色体性别决定区相关的高迁移率族盒蛋白2(sex-determing region of Y chromosome related high mobility group box 2,SOX2)的表达及意义。方法:选取86例卵巢上皮性癌组织和20例行卵巢活检的正常卵巢组织(少数局灶伴良性上皮性囊肿),采用免疫组织化学法检测YAP1和SOX2的表达;记录并统计86例卵巢癌患者的生存时间、肿瘤相关的临床病理参数,分析其与YAP1高表达的关系;建立SOX2稳定转染的卵巢上皮癌细胞株,免疫印迹法检测SOX2及YAP1的表达,划痕实验检测SOX2过表达细胞的迁移能力。结果:卵巢上皮性癌中YAP1和SOX2的高表达率明显高于正常卵巢组织(P均<0.01);YAP1高表达患者生存时间明显短于低表达者(P<0.01);卵巢上皮性癌组织中YAP1高表达与年龄无关,但与化疗耐药、肿瘤转移、FIGO分期、组织分化相关。YAP1和SOX2表达与卵巢上皮性癌相关,且两者表达呈正相关(r=0.635,P<0.01)。与对照组比较,SOX2过表达细胞中YAP1蛋白表达明显增加(t=6.304,P<0.01),细胞迁移能力明显提高(t=11.77,P<0.01)。结论:YAP1和SOX2在卵巢上皮性癌中呈高表达,且与卵巢上皮性癌发生发展相关。
基金This study was supported by grants from the National Natural Science Foundation of China （No. 81172234） and the Fundamental Research Funds for the Central Universities of China.
文摘Objective： To gain insight into the mechanism by which sex-determining region of Y chromosome （SRY）-related high-mobility-group box 2 （SOX2） involved in carcinogenesis and cancer stem cells （CSCs）. Data Sources： The data used in this review were mainly published in English from 2000 to present obtained from PubMed. The search terms were ＂SOX2,＂ ＂cancer,＂ ＂tumor＂ or ＂CSCs.＂ Study Selection： Articles studying the mitochondria-related pathologic mechanism and treatment of glaucoma were selected and reviewed. Results： SOX2, a transcription factor that is the key in maintaining pluripotent properties of stem cells, is a member of SRV-related high-mobility group domain proteins. SOX2 participates in many biological processes, such as modulation of cell proliferation, regulation of cell death signaling, cell apoptosis, and most importantly, tumor formation and development. Although SOX2 has been implicated in the biology of various tumors and CSCs, the findings are highly controversial, and information regarding the underlying mechanism remains limited. Moreover, the mechanism by which SOX2 involved in carcinogenesis and tumor progression is rather unclear yet. Conclusions： Here, we review the important biological functions of SOX2 in different tumors and CSCs, and the function of SOX2 signaling in the pathobiology ofneoplasia, such as Wnt/β-catenin signaling pathway, Hippo signaling pathway, Survivin signaling pathway, P13K/Akt signaling pathway, and so on. Targeting towards SOX2 may be an effective therapeutic strategy for cancer therapy.
文摘【目的】观察性别决定区因子(SRY-related high-mobility group box 2,Sox2)在人肾癌组织中的表达,探讨Sox2的表达与临床病理因素和预后的相关性。【方法】运用免疫组化Envision法检测156例人肾细胞癌及其配对癌旁正常肾组织病理标本中Sox2的表达水平,采用SPSS13.0统计软件分析肿瘤组织Sox2与临床病理因素及患者总生存时间的关系。【结果】Sox2在人肾癌组织中的表达明显高于癌旁正常组织(P<0.05);随TNM分期的递增(P=0.027)、淋巴结转移的出现(P=0.010)以及Ki-67表达(P=0.037)的增加,Sox2表达水平逐渐升高,各组间有显著相关性;Sox2表达阳性的肾癌患者,术后五年生存率较低(P=0.017);Sox2的表达与患者性别、年龄、肿瘤直径及组织类型无显著相关性。【结论】Sox2的表达与临床病理因素及预后有一定关系,其高表达可能在肾癌发生、发展中起重要作用,并很可能成为潜在的治疗靶点及预测肾癌预后的有价值的分子标记物。
