Dear Editor,Epstein-Barr virus(EBV,also termed human herpesvirus-4)was the first identified human tumor virus.Since its discovery in 1964,studies have shown that EBV infects over 90%of all people by the time they are ...Dear Editor,Epstein-Barr virus(EBV,also termed human herpesvirus-4)was the first identified human tumor virus.Since its discovery in 1964,studies have shown that EBV infects over 90%of all people by the time they are adults(Williams and Crawford 2006).EBV infection can result in mucocutaneous and systemic diseases,ranging from selflimited illnesses to aggressive malignancies,including B cell Hodgkin lymphoma and nasopharyngeal carcinoma.In vitro,EBV transforms resting B cells into proliferating blast cells(Pope et al.1968).展开更多
Actin is a ubiquitous protein and plays essential roles on cellular structure maintenance and cellular motility in both muscle and non-muscle tissues.Multiple genes encoding muscle actin have been identified from the ...Actin is a ubiquitous protein and plays essential roles on cellular structure maintenance and cellular motility in both muscle and non-muscle tissues.Multiple genes encoding muscle actin have been identified from the ascidians,including those expressed in the larval tail muscle,the adult body-wall muscle,and adult heart muscle.In this study,a novel striated non-tail muscle actin gene was identified from the RNA-seq data of Ciona savignyi embryos.Phylogenetic analysis,alignment of the N-terminal amino acid sequences and comparation of diagnostic residues provided evidence that it had high similarity with vertebrate cardiac and skeletal muscle actin.In situ hybridization and promoter-driven GFP reporter assay revealed that it was specifically expressed in the primordia of the oral and atrial siphon.We hereby defined it as siphon-specific muscle actin coding gene(Cs-SMA).A 201 bp(−1350 bp to−1150 bp)sequence containing T-box and Six1/2 binding motif within the upstream region of Cs-SMA confined the expression of GFP in the siphons of electroporated embryos.Six1/2 binding motif was experimentally confirmed to play indispensable role in controlling the siphon-specific expression of Cs-SMA.The tissue-specific expression of Cs-SMA in the siphon primordia indicated its potential crucial roles in Ciona embryogenesis and organogenesis.展开更多
越来越多的证据表明,长非编码RNA在肿瘤发生发展中起着关键作用。FEZ家族锌指1反义RNA 1(FEZF1-AS1)是一种与肿瘤密切相关的长非编码RNA,对多种类型的恶性肿瘤产生致病作用,并与肿瘤患者的预后不良及化疗耐药性有关。因此,FEZF1-AS1有...越来越多的证据表明,长非编码RNA在肿瘤发生发展中起着关键作用。FEZ家族锌指1反义RNA 1(FEZF1-AS1)是一种与肿瘤密切相关的长非编码RNA,对多种类型的恶性肿瘤产生致病作用,并与肿瘤患者的预后不良及化疗耐药性有关。因此,FEZF1-AS1有可能成为一种新型的癌症临床诊断和预后生物标志物,为肿瘤治疗提供新的分子靶点。本研究利用中国知网和PubMed数据库,在中国知网中以“FEZF1-AS1”“癌症或肿瘤”为关键词,在PubMed中以“FEZF1-AS1”“cancer or tumor”为关键词,分别检索2012-01-01-2023-12-01相关文献。纳入标准:(1)FEZF1-AS1与癌症诊断与治疗;(2)FEZF1-AS1与癌症的发生发展;(3)FEZF1-AS1与癌症的耐药性。剔除标准:重复,及其发表时间较早的综述文章。最终纳入分析文献65篇。研究发现,FEZF1-AS1不仅可以通过海绵化miRNA、引发染色质表观遗传、与蛋白质相互作用、调节信号通路、与mRNA形成双链等5种机制,在胰腺癌、结直肠癌、肝癌、非小细胞肺癌、胃癌、胶质母细胞瘤、宫颈癌、卵巢癌、口腔鳞状细胞癌、喉鳞状细胞癌、视网膜母细胞瘤、骨髓瘤、骨肉瘤、乳腺癌、鼻咽癌、前列腺癌和膀胱癌等17种肿瘤的发生发展中起致病作用,而且与癌症的化疗耐药密切相关。提示FEZF1-AS1具有极好的潜力,有可能成为癌症早期诊断、治疗和改善人类癌症整体预后的重要分子标志物。展开更多
为了解决传统ASN.1(abstract syntax notation one)编译码工作中存在的缺陷,根据TD-SCDMA中ASN.1编译码原理,提出利用编译器自动生成工具another tool for language recognition(ANTLR),设计了一个ASN.1描述代码的编译器,实现从ASN.1源...为了解决传统ASN.1(abstract syntax notation one)编译码工作中存在的缺陷,根据TD-SCDMA中ASN.1编译码原理,提出利用编译器自动生成工具another tool for language recognition(ANTLR),设计了一个ASN.1描述代码的编译器,实现从ASN.1源代码到CSharp(C#)语言数据结构的映射,其中包含完整的编译码所需信息,且便于访问。通过调用独立的编译码算法函数,从数据结构中提取相应的参数完成编译码。实际应用表明该编译系统减省了繁复的人工翻译描述代码工作,提高了ASN.1编译码的效率和准确率。展开更多
[目的]检测EB病毒(EBV)阳性肺癌组织中EBV潜伏感染膜蛋白-1(LMP-1)、p53、Bcl-2及基质金属蛋白酶-9(MMP-9)表达情况,分析它们与肺癌发生发展的关系。[方法]采用原位杂交法检测108例肺癌组织和22例癌旁正常肺组织中EBV编码的小RNA-1(EBV ...[目的]检测EB病毒(EBV)阳性肺癌组织中EBV潜伏感染膜蛋白-1(LMP-1)、p53、Bcl-2及基质金属蛋白酶-9(MMP-9)表达情况,分析它们与肺癌发生发展的关系。[方法]采用原位杂交法检测108例肺癌组织和22例癌旁正常肺组织中EBV编码的小RNA-1(EBV encoded small RNA-1,EBER-1)。免疫组织化学的方法检测EBER-1阳性和阴性肺癌组织中LMP-1、p53、Bcl-2及MMP-9的表达。[结果]108例肺癌组织中EBER-1阳性36例,阳性率33.3%;22例癌旁正常肺组织中EBER-1阳性1例,阳性率4.5%,差异有统计学意义(P<0.01)。EBER-1阳性和阴性的肺癌组织中LMP-1阳性率分别为11.1%和4.2%,差异无统计学意义(P>0.05);在EBER-1阳性肺癌组织中p53、Bcl-2的平均面积(AA)和积分光密度(IOD)均高于阴性组,差异有统计学意义。在EBER-1阳性肺癌组织中MMP-9AA和IOD均高于阴性组,但差异无统计学意义(P>0.05)。[结论]EBV感染可能通过影响LMP-1、Bcl-2、p53和MMP-9在肺癌组织中的表达,进而在肺癌的发生、发展和转移中发挥作用。展开更多
目的探讨DLC-1(deleted in liver cancer 1,DLC-1)、编码原钙黏蛋白10(protocadherin-10,PCDH10)表达水平和依赖还原型辅酶Ⅰ/Ⅱ:醌氧化还原酶NAD(P)H:quinone oxidoreductase l,NQO1基因多态性与吸烟诱导胃癌行内镜黏膜下剥离术(ESD)...目的探讨DLC-1(deleted in liver cancer 1,DLC-1)、编码原钙黏蛋白10(protocadherin-10,PCDH10)表达水平和依赖还原型辅酶Ⅰ/Ⅱ:醌氧化还原酶NAD(P)H:quinone oxidoreductase l,NQO1基因多态性与吸烟诱导胃癌行内镜黏膜下剥离术(ESD)术后复发的相关性。方法选取于2015年1月至2018年1月进行ESD术的202例胃癌患者作为研究对象,根据患胃癌前是否吸烟分为吸烟组(n=102)和不吸烟组(n=100),比较2组患者DLC-1、PCDH10表达水平以及NQO1基因多态性。根据患者术后复发情况分为复发组和未复发组,并分析上述基因多态性与患者复发之间的相关性。结果吸烟组DLC-1阳性表达比例显著低于不吸烟组患者(P<0.05)。另外染色结果表明:DLC-1在正常胃组织、癌旁组织和癌组织中表达水平分别呈现高表达、中表达、低表达,免疫反应性逐渐减弱;吸烟组患者PCDH10 mRNA表达量显著高于不吸烟组(P<0.05),且2组患者胃癌组织PCDH10 mRNA表达量显著高于癌旁组织(P<0.05);术后发生胃癌复发患者的DCL-1阴性率、胃癌组织PCDH10 mRNA水平以及NQO1基因CT和TT型比例均显著高于未复发组患者(P<0.05);Logistic回归分析结果发现DCL-1阴性率、胃癌组织PCDH10 mRNA水平以及NQO1基因多态性均与胃癌患者ESD术后复发存在密切相关性(P<0.05)。结论吸烟、NQOI基因多态性、DLC-1阴性和PCDH10高表达会增加胃癌发生风险,DLC-1阴性与胃癌ESD术后复发存在显著负相关,吸烟、PCDH10表达水平以及NQO1基因多态性与胃癌ESD术后复发存在显著正相关。展开更多
基金supported by the National Natural Science Foundation of China (Grant Numbers: 81402542 and 81772166)the scholarship of Pujiang Talents in Shanghai to Fang Wei (Grant Number: 14PJ1405600)
文摘Dear Editor,Epstein-Barr virus(EBV,also termed human herpesvirus-4)was the first identified human tumor virus.Since its discovery in 1964,studies have shown that EBV infects over 90%of all people by the time they are adults(Williams and Crawford 2006).EBV infection can result in mucocutaneous and systemic diseases,ranging from selflimited illnesses to aggressive malignancies,including B cell Hodgkin lymphoma and nasopharyngeal carcinoma.In vitro,EBV transforms resting B cells into proliferating blast cells(Pope et al.1968).
基金funded by the National Key Research and Development Program of China(Nos.2019YFE0190900,2018YFD0900705).
文摘Actin is a ubiquitous protein and plays essential roles on cellular structure maintenance and cellular motility in both muscle and non-muscle tissues.Multiple genes encoding muscle actin have been identified from the ascidians,including those expressed in the larval tail muscle,the adult body-wall muscle,and adult heart muscle.In this study,a novel striated non-tail muscle actin gene was identified from the RNA-seq data of Ciona savignyi embryos.Phylogenetic analysis,alignment of the N-terminal amino acid sequences and comparation of diagnostic residues provided evidence that it had high similarity with vertebrate cardiac and skeletal muscle actin.In situ hybridization and promoter-driven GFP reporter assay revealed that it was specifically expressed in the primordia of the oral and atrial siphon.We hereby defined it as siphon-specific muscle actin coding gene(Cs-SMA).A 201 bp(−1350 bp to−1150 bp)sequence containing T-box and Six1/2 binding motif within the upstream region of Cs-SMA confined the expression of GFP in the siphons of electroporated embryos.Six1/2 binding motif was experimentally confirmed to play indispensable role in controlling the siphon-specific expression of Cs-SMA.The tissue-specific expression of Cs-SMA in the siphon primordia indicated its potential crucial roles in Ciona embryogenesis and organogenesis.
文摘越来越多的证据表明,长非编码RNA在肿瘤发生发展中起着关键作用。FEZ家族锌指1反义RNA 1(FEZF1-AS1)是一种与肿瘤密切相关的长非编码RNA,对多种类型的恶性肿瘤产生致病作用,并与肿瘤患者的预后不良及化疗耐药性有关。因此,FEZF1-AS1有可能成为一种新型的癌症临床诊断和预后生物标志物,为肿瘤治疗提供新的分子靶点。本研究利用中国知网和PubMed数据库,在中国知网中以“FEZF1-AS1”“癌症或肿瘤”为关键词,在PubMed中以“FEZF1-AS1”“cancer or tumor”为关键词,分别检索2012-01-01-2023-12-01相关文献。纳入标准:(1)FEZF1-AS1与癌症诊断与治疗;(2)FEZF1-AS1与癌症的发生发展;(3)FEZF1-AS1与癌症的耐药性。剔除标准:重复,及其发表时间较早的综述文章。最终纳入分析文献65篇。研究发现,FEZF1-AS1不仅可以通过海绵化miRNA、引发染色质表观遗传、与蛋白质相互作用、调节信号通路、与mRNA形成双链等5种机制,在胰腺癌、结直肠癌、肝癌、非小细胞肺癌、胃癌、胶质母细胞瘤、宫颈癌、卵巢癌、口腔鳞状细胞癌、喉鳞状细胞癌、视网膜母细胞瘤、骨髓瘤、骨肉瘤、乳腺癌、鼻咽癌、前列腺癌和膀胱癌等17种肿瘤的发生发展中起致病作用,而且与癌症的化疗耐药密切相关。提示FEZF1-AS1具有极好的潜力,有可能成为癌症早期诊断、治疗和改善人类癌症整体预后的重要分子标志物。
文摘为了解决传统ASN.1(abstract syntax notation one)编译码工作中存在的缺陷,根据TD-SCDMA中ASN.1编译码原理,提出利用编译器自动生成工具another tool for language recognition(ANTLR),设计了一个ASN.1描述代码的编译器,实现从ASN.1源代码到CSharp(C#)语言数据结构的映射,其中包含完整的编译码所需信息,且便于访问。通过调用独立的编译码算法函数,从数据结构中提取相应的参数完成编译码。实际应用表明该编译系统减省了繁复的人工翻译描述代码工作,提高了ASN.1编译码的效率和准确率。
文摘[目的]检测EB病毒(EBV)阳性肺癌组织中EBV潜伏感染膜蛋白-1(LMP-1)、p53、Bcl-2及基质金属蛋白酶-9(MMP-9)表达情况,分析它们与肺癌发生发展的关系。[方法]采用原位杂交法检测108例肺癌组织和22例癌旁正常肺组织中EBV编码的小RNA-1(EBV encoded small RNA-1,EBER-1)。免疫组织化学的方法检测EBER-1阳性和阴性肺癌组织中LMP-1、p53、Bcl-2及MMP-9的表达。[结果]108例肺癌组织中EBER-1阳性36例,阳性率33.3%;22例癌旁正常肺组织中EBER-1阳性1例,阳性率4.5%,差异有统计学意义(P<0.01)。EBER-1阳性和阴性的肺癌组织中LMP-1阳性率分别为11.1%和4.2%,差异无统计学意义(P>0.05);在EBER-1阳性肺癌组织中p53、Bcl-2的平均面积(AA)和积分光密度(IOD)均高于阴性组,差异有统计学意义。在EBER-1阳性肺癌组织中MMP-9AA和IOD均高于阴性组,但差异无统计学意义(P>0.05)。[结论]EBV感染可能通过影响LMP-1、Bcl-2、p53和MMP-9在肺癌组织中的表达,进而在肺癌的发生、发展和转移中发挥作用。
