SET(patient SE translocation,SET)基因,又名模板活化因子-1(template activating factor,TAF-1),因首次鉴定于伴有该基因染色体异位的未分化型白血病患者SE而命名。SET蛋白具有多种生物功能,可以通过影响组蛋白乙酰化、转录调节、核...SET(patient SE translocation,SET)基因,又名模板活化因子-1(template activating factor,TAF-1),因首次鉴定于伴有该基因染色体异位的未分化型白血病患者SE而命名。SET蛋白具有多种生物功能,可以通过影响组蛋白乙酰化、转录调节、核小体装配等,参与基因表达调控、翻译后修饰、细胞凋亡等多个生物过程,是重要的细胞因子。一些消化和血液系统肿瘤、生殖与神经系统的疾病伴有SET表达或亚细胞定位异常,提示SET与这些疾病的发生发展相关。SET基因转录剪切产生TAF-Iα和SET/TAF-Iβ2个亚型,而SET/TAF-Iβ可能发挥着SET蛋白的主要生物学作用。展开更多
目的观察宫颈环扎手术治疗中期妊娠宫颈机能不全的临床效果。方法回顾性分析2012年1月~2018年3月48例中期妊娠诊断为宫颈机能不全行宫颈环扎术的临床资料,观察患者术后情况[术后保胎时间、术后并发症(1周内阴道出血、胎膜早破、感染)]...目的观察宫颈环扎手术治疗中期妊娠宫颈机能不全的临床效果。方法回顾性分析2012年1月~2018年3月48例中期妊娠诊断为宫颈机能不全行宫颈环扎术的临床资料,观察患者术后情况[术后保胎时间、术后并发症(1周内阴道出血、胎膜早破、感染)]、妊娠结局(活产率、延长妊娠孕周、分娩孕周)及新生儿预后(出生体重及Apgar评分)。结果术后保胎时间(8.2±5.7)d。术后1周内阴道出血率33.3%(16/48)、胎膜早破率14.6%(7/48),感染率10.4%(5/48)。≥37孕周分娩22例,28~37孕周16例,<28孕周难免流产10例。围生儿存活率为86.8%(33/38),33例新生儿1 min Apgar评分7~10分,出生体重(2415±207)g,低出生体质量儿5例。结论对中期妊娠出现宫颈功能不全行宫颈环扎术可以有效改善患者的妊娠结局,根据患者自身情况个体化选择手术方式才能达到最佳疗效。展开更多
Objective:To construct SET gene recombinant adenovirus vector and SET gene small interfering RNA(SiRNA) recombinant adenovirus vector for over-expression or knock-down of SET levels. Methods:The cDNA sequence of SET w...Objective:To construct SET gene recombinant adenovirus vector and SET gene small interfering RNA(SiRNA) recombinant adenovirus vector for over-expression or knock-down of SET levels. Methods:The cDNA sequence of SET was cloned by reverse transcriptive polymerase chain reaction(RT-PCR) and the SET gene fragment was subcloned into adenovirus shuttle plasmid pAdTrack-CMV to construct the shuttle plasmid pAdTrack-SET.The shuttle plasmid pAdtrack-SET was transformed into BJ5183 cells with the adenoviral backbone pAdEasy-1 to obtain the homologous recombinant Ad-CMV-SET and the recombinant Ad-CMV-SET was packaged and amplified in the AD293 cells.The expression of SET in AD293 cells was detected by Western blot.In addition,we constructed SET gene SiRNA recombinant adenovirus vector(Ad-H1-SiRNA/SET) and its efficacy of knockdown of SET protein was detected in infected GC-2spd(ts) cells by Western blot. Results:The recombinant adenovirus vectors,both SET gene recombinant adenovirus vector Ad-CMV-SET and SET gene SiRNA recombinant adenovirus vector Ad-H1-SiRNA/SET,were proven to be constructed successfully by the evidence of endonulease digestion and sequencing.AD293 cells infected with either recombinant adenovirus vector of Ad-CMV-SET or Ad-H1-SiRNA/SET were observed to express GFP.The expression of SET protein was up-regulated significantly in AD293 cells infected with SET gene recombinant adenovirus vector.On the contrast, SET protein was significantly down-regulated in the GC-2spd(ts) cells infected with Ad-H1-SiRNA/SET (P<0.05) and the knockdown efficiency was approximately 50%-70%. Conclusion:The recombinant adenovirus vector Ad-CMV-SET and Ad-H1-SiRNA/SET were successfully constructed and effectively expressed in germ cells and somatic cells.It provides an experimental tool for further study of SET gene in the physiological and pathophysiological mechanism of reproduction-related diseases.展开更多
文摘SET(patient SE translocation,SET)基因,又名模板活化因子-1(template activating factor,TAF-1),因首次鉴定于伴有该基因染色体异位的未分化型白血病患者SE而命名。SET蛋白具有多种生物功能,可以通过影响组蛋白乙酰化、转录调节、核小体装配等,参与基因表达调控、翻译后修饰、细胞凋亡等多个生物过程,是重要的细胞因子。一些消化和血液系统肿瘤、生殖与神经系统的疾病伴有SET表达或亚细胞定位异常,提示SET与这些疾病的发生发展相关。SET基因转录剪切产生TAF-Iα和SET/TAF-Iβ2个亚型,而SET/TAF-Iβ可能发挥着SET蛋白的主要生物学作用。
文摘目的观察宫颈环扎手术治疗中期妊娠宫颈机能不全的临床效果。方法回顾性分析2012年1月~2018年3月48例中期妊娠诊断为宫颈机能不全行宫颈环扎术的临床资料,观察患者术后情况[术后保胎时间、术后并发症(1周内阴道出血、胎膜早破、感染)]、妊娠结局(活产率、延长妊娠孕周、分娩孕周)及新生儿预后(出生体重及Apgar评分)。结果术后保胎时间(8.2±5.7)d。术后1周内阴道出血率33.3%(16/48)、胎膜早破率14.6%(7/48),感染率10.4%(5/48)。≥37孕周分娩22例,28~37孕周16例,<28孕周难免流产10例。围生儿存活率为86.8%(33/38),33例新生儿1 min Apgar评分7~10分,出生体重(2415±207)g,低出生体质量儿5例。结论对中期妊娠出现宫颈功能不全行宫颈环扎术可以有效改善患者的妊娠结局,根据患者自身情况个体化选择手术方式才能达到最佳疗效。
基金Projects from China National Department of Science and Technology(81070465)a project from China Jiangsu Province (BM2008151)
文摘Objective:To construct SET gene recombinant adenovirus vector and SET gene small interfering RNA(SiRNA) recombinant adenovirus vector for over-expression or knock-down of SET levels. Methods:The cDNA sequence of SET was cloned by reverse transcriptive polymerase chain reaction(RT-PCR) and the SET gene fragment was subcloned into adenovirus shuttle plasmid pAdTrack-CMV to construct the shuttle plasmid pAdTrack-SET.The shuttle plasmid pAdtrack-SET was transformed into BJ5183 cells with the adenoviral backbone pAdEasy-1 to obtain the homologous recombinant Ad-CMV-SET and the recombinant Ad-CMV-SET was packaged and amplified in the AD293 cells.The expression of SET in AD293 cells was detected by Western blot.In addition,we constructed SET gene SiRNA recombinant adenovirus vector(Ad-H1-SiRNA/SET) and its efficacy of knockdown of SET protein was detected in infected GC-2spd(ts) cells by Western blot. Results:The recombinant adenovirus vectors,both SET gene recombinant adenovirus vector Ad-CMV-SET and SET gene SiRNA recombinant adenovirus vector Ad-H1-SiRNA/SET,were proven to be constructed successfully by the evidence of endonulease digestion and sequencing.AD293 cells infected with either recombinant adenovirus vector of Ad-CMV-SET or Ad-H1-SiRNA/SET were observed to express GFP.The expression of SET protein was up-regulated significantly in AD293 cells infected with SET gene recombinant adenovirus vector.On the contrast, SET protein was significantly down-regulated in the GC-2spd(ts) cells infected with Ad-H1-SiRNA/SET (P<0.05) and the knockdown efficiency was approximately 50%-70%. Conclusion:The recombinant adenovirus vector Ad-CMV-SET and Ad-H1-SiRNA/SET were successfully constructed and effectively expressed in germ cells and somatic cells.It provides an experimental tool for further study of SET gene in the physiological and pathophysiological mechanism of reproduction-related diseases.
