目的:观察Rho激酶抑制剂法舒地尔(Fasudil)对人高侵袭潜能HCC细胞株3(human high metastatic liver cancer cells 3,HCCLM3)侵袭转移的影响,并且探讨其作用的机制。方法:应用100 mol/L Fasudil作用于HCCLM3细胞,采用肌动蛋白微丝荧光染...目的:观察Rho激酶抑制剂法舒地尔(Fasudil)对人高侵袭潜能HCC细胞株3(human high metastatic liver cancer cells 3,HCCLM3)侵袭转移的影响,并且探讨其作用的机制。方法:应用100 mol/L Fasudil作用于HCCLM3细胞,采用肌动蛋白微丝荧光染色和侵袭小室实验观察HCCLM3细胞的运动侵袭能力。HCCLM3细胞经过处理后分为阴性对照组、Fasudil作用组、BTBD7干扰组,通过Western印迹检测BTB/POZ结构域蛋白7(BR-C,ttk and bab/pox virus domain containing 7,BTBD7)、Ras同系物家族成员C(ras homolog family member C,Rho C)、Rho关联卷曲螺旋蛋白激酶2(Rhoassociated,coiled-coil containing protein kinase 2,ROCK2)、MMP2和MMP9蛋白表达水平,酶谱分析法检测MMP2和MMP9活性水平。BTBD7干扰组作为阳性对照。结果:Fasudil处理后HCCLM3侵袭运动能力下降,BTBD7,Rho C,ROCK2蛋白表达下调,MMP2和MMP9活性降低,与阴性对照组比较差异有统计学意义(均P<0.01)。结论:Fasudil具有干预BTBD7-ROCK2信号通路、抑制HCC侵袭转移的重要作用。展开更多
Objective:To screen mutations in FERM domain-containing protein 7(FRMD7) gene in two Chinese families with X-linked idiopathic congenital nystagmus(XLICN).Methods:Common ophthalmic data and peripheral blood of two Chi...Objective:To screen mutations in FERM domain-containing protein 7(FRMD7) gene in two Chinese families with X-linked idiopathic congenital nystagmus(XLICN).Methods:Common ophthalmic data and peripheral blood of two Chinese XLICN families(families A and B) were collected after informed consent.Genomic DNA was prepared from the peripheral blood of members of the two families and from 100 normal controls.Mutations in the FRMD7 gene were determined by directly sequencing polymerase chain reaction(PCR) products.Results:We identified a novel mutation c.980_983delATTA compound with c.986C>A mutation in the 11th exon of FRMD7 in family B,and a previously reported splicing mutation c.782G>C(p.R261G) in family A.The mutations were detected in patients and female carriers,while they were absent in other relatives or in the 100 normal controls.Conclusions:Our results expand the spectrum of FRMD7 mutations in association with XLICN,and further confirm that the mutations of FRMD7 are the underlying molecular mechanism for XLICN.展开更多
目的·研究1个中国汉族X染色体连锁显性遗传婴儿眼球震颤家系的临床特征。方法·收集上海交通大学医学院附属新华医院眼科就诊的1个X染色体连锁显性遗传婴儿眼球震颤家系,采集所有家系成员外周血进行分子遗传学分析。对家系内5...目的·研究1个中国汉族X染色体连锁显性遗传婴儿眼球震颤家系的临床特征。方法·收集上海交通大学医学院附属新华医院眼科就诊的1个X染色体连锁显性遗传婴儿眼球震颤家系,采集所有家系成员外周血进行分子遗传学分析。对家系内5位患者进行视力、代偿头位扭转角、立体视觉、双眼视功能、视觉电生理检查,及光学相干断层扫描、眼动仪检查和散瞳验光。结果·该家系突变位点为酵母功能域包含蛋白7(FERM domain containing protein 7,FRMD7)基因第9外显子上c.823-829delACCCTAC(p.Thr275fs)移码突变。该家系患者视力多为中度受损,屈光不正为轻度散光性屈光不正,立体视觉下降,双眼可同时视但无法融合,眼球震颤波形为双向冲动型波形,视网膜电图未见明显异常,视觉诱发电位表现多为峰时延迟、振幅降低,光学相干断层扫描未见视网膜黄斑部异常表现,代偿头位表现较为多样。结论·FRMD7蛋白Thr275fs是导致该家系致病的主要原因。该家系患者临床特征表现出一定程度的一致性。展开更多
Non-alcoholic fatty liver disease(NAFLD) has a prevalence of approximately 30% in western countries, and is emerging as the first cause of liver cirrhosis and hepatocellular carcinoma(HCC). Therefore, risk stratificat...Non-alcoholic fatty liver disease(NAFLD) has a prevalence of approximately 30% in western countries, and is emerging as the first cause of liver cirrhosis and hepatocellular carcinoma(HCC). Therefore, risk stratification emerges as fundamental in order to optimize human and economic resources, and genetics displays intrinsic characteristics suitable to fulfill this task. According to the available data, heritability estimates for hepatic fat content range from 20% to 70%, and an almost 80% of shared heritability has been found between hepatic fat content and fibrosis. The rs738409 single nucleotide polymorphism(SNP) in patatin-like phospholipase domain-containing protein 3 gene and the rs58542926 SNP in transmembrane 6 superfamily member 2 gene have been robustly associated with NAFLD and with its progression, but promising results have been obtained with many other SNPs. Moreover, there has been proof of the additive role of the different SNPs in determining liver damage, and there have been preliminary experiences in which risk scores created through a few genetic variants, alone or in combination with clinical variables, were associated with a strongly potentiated risk of NAFLD, non-alcoholic steatohepatitis(NASH), NASH fibrosis or NAFLD-HCC. However, to date, clinical translation of genetics in the field of NAFLD has been poor or absent. Fortunately, the research we have done seems to have placed us on the right path: We should rely on longitudinal rather than on cross-sectional studies; we should focus on relevant outcomes rather than on simple liver fat accumulation; and we should put together the genetic and clinical information. The hope is that combined genetic/clinical scores, derived from longitudinal studies and built on a few strong genetic variants and relevant clinical variables, will reach a significant predictive power, such as to have clinical utility for risk stratification at the single patient level and even to esteem the impact of intervention on the risk of disease-related outcomes. Well-structured future studies would demonstrate if this vision can become a reality.展开更多
目的:探讨BTB/POZ结构域蛋白7(BTBD7)假基因1(BTBD7P1)在肝细胞癌(HCC)中的表达及功能。方法:检测106例配对的HCC组织与癌旁组织标本中BTBD7P1 m RNA的表达,分析BTBD7P1m RNA表达与HCC患者临床病理特征及预后的关系。用BTBD7P1过表达慢...目的:探讨BTB/POZ结构域蛋白7(BTBD7)假基因1(BTBD7P1)在肝细胞癌(HCC)中的表达及功能。方法:检测106例配对的HCC组织与癌旁组织标本中BTBD7P1 m RNA的表达,分析BTBD7P1m RNA表达与HCC患者临床病理特征及预后的关系。用BTBD7P1过表达慢病毒载体转染HCC细胞系Bel7404后,检测细胞增殖率以及BTBD7 m RNA与蛋白的表达。结果:HCC组织中BTBD7P1相对表达量明显低于癌旁组织为(0.71 vs.2.14,P<0.05);BTBD7P1m RNA低表达与肿瘤大小、卫星灶、分化程度、静脉血管侵犯、出血坏死、HCC分期明显有关(均P<0.05);BTBD7P1 m RNA低表达患者的1、3、5年总体生存率及无瘤生存率均明显低于BTBD7P1m RNA高表达患者(均P<0.05)。与转染空载体质粒的对照组Bel7404细胞比较,转染BTBD7P1过表达慢病毒载体的Bel7404细胞,细胞增殖能力明显减低,BTBD7 m RNA表达明显下调(均P<0.05),但BTBD7蛋白表达无明显变化(P>0.05)。结论:BTBD7P1可能在m RNA水平对亲本基因BTBD7表达进行调控,从而参与了HCC发生与发展。展开更多
目的探讨F框/WD40域蛋白7(F-box and WD-40domain protein7,FBXW7)和胆固醇调节元件结合蛋白(sterol regulatory element binding proteins,SREBPs)基因多态性与新疆地区维吾尔族人群冠心病的相关性。方法 360例维吾尔族冠心病患者(冠...目的探讨F框/WD40域蛋白7(F-box and WD-40domain protein7,FBXW7)和胆固醇调节元件结合蛋白(sterol regulatory element binding proteins,SREBPs)基因多态性与新疆地区维吾尔族人群冠心病的相关性。方法 360例维吾尔族冠心病患者(冠心病组)和373例维吾尔族健康受试者(对照组),2组采用改良的多重高温连接酶检测反应基因分型技术分析FBXW7、SREBP-1和SREBP-2基因多态性位点,检测2组血压和血生化指标,比较2组基因频率分布情况,并采用多因素logistic回归分析冠心病的独立危险因素。结果冠心病组吸烟、饮酒比率,合并高血压、糖尿病、高脂血症发生率,空腹血糖、三酰甘油、总胆固醇、低密度脂蛋白胆固醇水平均高于对照组(P<0.05),高密度脂蛋白胆固醇水平低于对照组(P<0.05);2组SREBP-1基因rs9902941位点基因型分布和隐性模型(TT/CT+CC)分布、SREBP-2基因rs7288536位点基因型分布及显性模型(TT/CT+CC)和相加模型(CT/TT+CC)分布、FBXW7基因rs10033601位点基因型分布和隐性模型(GG/AG+AA)分布比较差异均有统计学意义(P<0.05);多因素logistic回归校正性别、年龄、吸烟、饮酒、血压、血糖及血脂等影响因素后,SREBP-1基因rs9902941位点隐性模型、FBXW7基因rs10033601位点隐性模型及SREBP-2基因rs7288536位点相加模型为冠心病的独立危险因素(OR=1.900,95%CI:1.041~3.467,P=0.036;OR=1.670,95%CI:1.054~2.645,P=0.029;OR=1.578,95%CI:1.133~2.197,P=0.007)。结论在新疆维吾尔族人群中,FBXW7基因rs10033601多态性、SREBP-1基因rs9902941多态性和SREBP-2基因rs7288536多态性与冠心病发生具有相关性。展开更多
文摘目的:观察Rho激酶抑制剂法舒地尔(Fasudil)对人高侵袭潜能HCC细胞株3(human high metastatic liver cancer cells 3,HCCLM3)侵袭转移的影响,并且探讨其作用的机制。方法:应用100 mol/L Fasudil作用于HCCLM3细胞,采用肌动蛋白微丝荧光染色和侵袭小室实验观察HCCLM3细胞的运动侵袭能力。HCCLM3细胞经过处理后分为阴性对照组、Fasudil作用组、BTBD7干扰组,通过Western印迹检测BTB/POZ结构域蛋白7(BR-C,ttk and bab/pox virus domain containing 7,BTBD7)、Ras同系物家族成员C(ras homolog family member C,Rho C)、Rho关联卷曲螺旋蛋白激酶2(Rhoassociated,coiled-coil containing protein kinase 2,ROCK2)、MMP2和MMP9蛋白表达水平,酶谱分析法检测MMP2和MMP9活性水平。BTBD7干扰组作为阳性对照。结果:Fasudil处理后HCCLM3侵袭运动能力下降,BTBD7,Rho C,ROCK2蛋白表达下调,MMP2和MMP9活性降低,与阴性对照组比较差异有统计学意义(均P<0.01)。结论:Fasudil具有干预BTBD7-ROCK2信号通路、抑制HCC侵袭转移的重要作用。
基金Project supported by the Zhejiang Provincial Science Fund of Health Bureau of China (No. 2012KYA102)the Fundamental Research Funds for the Central Universities (No. 2011FZA7014)+1 种基金the Zhejiang Key Innovation Team Project of China (No. 2009R50039)the Zhejiang Key Laboratory Fund of China (No. 2011E10006)
文摘Objective:To screen mutations in FERM domain-containing protein 7(FRMD7) gene in two Chinese families with X-linked idiopathic congenital nystagmus(XLICN).Methods:Common ophthalmic data and peripheral blood of two Chinese XLICN families(families A and B) were collected after informed consent.Genomic DNA was prepared from the peripheral blood of members of the two families and from 100 normal controls.Mutations in the FRMD7 gene were determined by directly sequencing polymerase chain reaction(PCR) products.Results:We identified a novel mutation c.980_983delATTA compound with c.986C>A mutation in the 11th exon of FRMD7 in family B,and a previously reported splicing mutation c.782G>C(p.R261G) in family A.The mutations were detected in patients and female carriers,while they were absent in other relatives or in the 100 normal controls.Conclusions:Our results expand the spectrum of FRMD7 mutations in association with XLICN,and further confirm that the mutations of FRMD7 are the underlying molecular mechanism for XLICN.
文摘目的·研究1个中国汉族X染色体连锁显性遗传婴儿眼球震颤家系的临床特征。方法·收集上海交通大学医学院附属新华医院眼科就诊的1个X染色体连锁显性遗传婴儿眼球震颤家系,采集所有家系成员外周血进行分子遗传学分析。对家系内5位患者进行视力、代偿头位扭转角、立体视觉、双眼视功能、视觉电生理检查,及光学相干断层扫描、眼动仪检查和散瞳验光。结果·该家系突变位点为酵母功能域包含蛋白7(FERM domain containing protein 7,FRMD7)基因第9外显子上c.823-829delACCCTAC(p.Thr275fs)移码突变。该家系患者视力多为中度受损,屈光不正为轻度散光性屈光不正,立体视觉下降,双眼可同时视但无法融合,眼球震颤波形为双向冲动型波形,视网膜电图未见明显异常,视觉诱发电位表现多为峰时延迟、振幅降低,光学相干断层扫描未见视网膜黄斑部异常表现,代偿头位表现较为多样。结论·FRMD7蛋白Thr275fs是导致该家系致病的主要原因。该家系患者临床特征表现出一定程度的一致性。
文摘Non-alcoholic fatty liver disease(NAFLD) has a prevalence of approximately 30% in western countries, and is emerging as the first cause of liver cirrhosis and hepatocellular carcinoma(HCC). Therefore, risk stratification emerges as fundamental in order to optimize human and economic resources, and genetics displays intrinsic characteristics suitable to fulfill this task. According to the available data, heritability estimates for hepatic fat content range from 20% to 70%, and an almost 80% of shared heritability has been found between hepatic fat content and fibrosis. The rs738409 single nucleotide polymorphism(SNP) in patatin-like phospholipase domain-containing protein 3 gene and the rs58542926 SNP in transmembrane 6 superfamily member 2 gene have been robustly associated with NAFLD and with its progression, but promising results have been obtained with many other SNPs. Moreover, there has been proof of the additive role of the different SNPs in determining liver damage, and there have been preliminary experiences in which risk scores created through a few genetic variants, alone or in combination with clinical variables, were associated with a strongly potentiated risk of NAFLD, non-alcoholic steatohepatitis(NASH), NASH fibrosis or NAFLD-HCC. However, to date, clinical translation of genetics in the field of NAFLD has been poor or absent. Fortunately, the research we have done seems to have placed us on the right path: We should rely on longitudinal rather than on cross-sectional studies; we should focus on relevant outcomes rather than on simple liver fat accumulation; and we should put together the genetic and clinical information. The hope is that combined genetic/clinical scores, derived from longitudinal studies and built on a few strong genetic variants and relevant clinical variables, will reach a significant predictive power, such as to have clinical utility for risk stratification at the single patient level and even to esteem the impact of intervention on the risk of disease-related outcomes. Well-structured future studies would demonstrate if this vision can become a reality.
文摘目的:探讨BTB/POZ结构域蛋白7(BTBD7)假基因1(BTBD7P1)在肝细胞癌(HCC)中的表达及功能。方法:检测106例配对的HCC组织与癌旁组织标本中BTBD7P1 m RNA的表达,分析BTBD7P1m RNA表达与HCC患者临床病理特征及预后的关系。用BTBD7P1过表达慢病毒载体转染HCC细胞系Bel7404后,检测细胞增殖率以及BTBD7 m RNA与蛋白的表达。结果:HCC组织中BTBD7P1相对表达量明显低于癌旁组织为(0.71 vs.2.14,P<0.05);BTBD7P1m RNA低表达与肿瘤大小、卫星灶、分化程度、静脉血管侵犯、出血坏死、HCC分期明显有关(均P<0.05);BTBD7P1 m RNA低表达患者的1、3、5年总体生存率及无瘤生存率均明显低于BTBD7P1m RNA高表达患者(均P<0.05)。与转染空载体质粒的对照组Bel7404细胞比较,转染BTBD7P1过表达慢病毒载体的Bel7404细胞,细胞增殖能力明显减低,BTBD7 m RNA表达明显下调(均P<0.05),但BTBD7蛋白表达无明显变化(P>0.05)。结论:BTBD7P1可能在m RNA水平对亲本基因BTBD7表达进行调控,从而参与了HCC发生与发展。
文摘目的探讨F框/WD40域蛋白7(F-box and WD-40domain protein7,FBXW7)和胆固醇调节元件结合蛋白(sterol regulatory element binding proteins,SREBPs)基因多态性与新疆地区维吾尔族人群冠心病的相关性。方法 360例维吾尔族冠心病患者(冠心病组)和373例维吾尔族健康受试者(对照组),2组采用改良的多重高温连接酶检测反应基因分型技术分析FBXW7、SREBP-1和SREBP-2基因多态性位点,检测2组血压和血生化指标,比较2组基因频率分布情况,并采用多因素logistic回归分析冠心病的独立危险因素。结果冠心病组吸烟、饮酒比率,合并高血压、糖尿病、高脂血症发生率,空腹血糖、三酰甘油、总胆固醇、低密度脂蛋白胆固醇水平均高于对照组(P<0.05),高密度脂蛋白胆固醇水平低于对照组(P<0.05);2组SREBP-1基因rs9902941位点基因型分布和隐性模型(TT/CT+CC)分布、SREBP-2基因rs7288536位点基因型分布及显性模型(TT/CT+CC)和相加模型(CT/TT+CC)分布、FBXW7基因rs10033601位点基因型分布和隐性模型(GG/AG+AA)分布比较差异均有统计学意义(P<0.05);多因素logistic回归校正性别、年龄、吸烟、饮酒、血压、血糖及血脂等影响因素后,SREBP-1基因rs9902941位点隐性模型、FBXW7基因rs10033601位点隐性模型及SREBP-2基因rs7288536位点相加模型为冠心病的独立危险因素(OR=1.900,95%CI:1.041~3.467,P=0.036;OR=1.670,95%CI:1.054~2.645,P=0.029;OR=1.578,95%CI:1.133~2.197,P=0.007)。结论在新疆维吾尔族人群中,FBXW7基因rs10033601多态性、SREBP-1基因rs9902941多态性和SREBP-2基因rs7288536多态性与冠心病发生具有相关性。
