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| 1 | Reduction of tumorigenicity of SMMC-7721 hepatoma cells by vascular endothelial growth factor antisense gene therapy显示文摘AIM To test the hypothesis to block VEGFexpression of SMMC-7721 hepatoma cells mayinhibit tumor growth using the rat hepatomamodel.METHODS Amplifiy the 200 VEGF cDNAfragment and insert it into human U6 genecassette in the reverse orientation transcribingsmall antisense RNA which could specificallyinteract with VEGF165, and VEGF121 mRNA.Construct the retroviral vector containing thisantisense VEGF U6 cassette and package thereplication-deficient recombinant retrovirus.SMMC-7721 cells were transduced with thesevirus and positive clones were selected withG418. PCR and Southern blot analysis wereperformed to determine if U6 cassette integratedinto the genomic DNA of positive clone.Transfected tumor cells were evaluated for RNAexpression by ribonuclease protection assays.The VEGF protein in the supernatant of parentaltumor cells and genetically modified tumor cellswas determined with ELISA. In vitro and in vivogrowth properties of antisense VEGF cell clonein nude mice were analyzed.RESULTS Restriction enzyme digestion andPCR sequencing verified that the antisense VEGFRNA retroviral vector was successfullyconstructed. After G418 selection, resistantSMMC-7721 cell clone was picked up. PCR andSouthern blot analysis suggested that U6cassette was integrated into the cell genomicDNA. Stable SMMC-7721 cell clone transducedwith U6 antisense RNA cassette could express200bp small antisense VEGF RNA and secretereduced levels of VEGF in culture condition.Production of VEGF by antisense transgeneexpressing cells was 65 ± 10 ng / L per 106 cells,420 ± 45 ng/L per 106 cells in sense group and 485± 30 ng/L per 106 cells in the negative control group, (P<0.05). The antisense-VEGF cell clone appeared phenotypically indistinguishable from SMMC-7721 cells and SMMC-7721 cells transfected sense VEGF. The growth rate of the antisense-VEGF cell clone was the same as the control cells. When S. C. was implanted into nude mice, growth of antisense-VEGF cell lines was greatly inhibited compared with control cells.CONCLUSION Expression of antisense VEGFRNA in SMMC-7721 cells could decrease thetumorigenicity, and antisense-VEGF genetherapy may be an adjuvant treatment forhepatoma. | Yu Cheng Tang Yu Li Guan Xiang Qian Department of Biochemistry, Shanghai Second Medical University, Shanghai 200025, China | 2001 | World Journal of Gastroenterology2001，7，1： | 33 |
| 2 | HCV-RNA positivity in peripheral blood mononuclear cells of patients with chronic HCV-infection: does it really mean viral replication?显示文摘AIM To analyze the association of HCV-RNA with peripheral blood mononuclear cells (PBMC)and to answer the question whether HCV-RNA positivity in PBMC is due to viral replication,METHODS HCV-RNA was monitored in serumand PBMC preparations from 15 patients with chronic HCV infection before, during and after an IFN-α therapy using a nested RT/ PCRtechnique. In a second approach, PBMC from healthy donors were incubated in HCV positive plasma.RESULTS In the IFN-α responding patients,HCV-RNA disappeared first from total RNApreparations of PBMC and then from serum. In contrast, in relapsing patients, HCV-RNAreappeared first in serum and then in PBMC. A quantitative analysis of the HCV-RNAconcentration in serum was performed before and after transition from detectable to nondetectable HCV-RNA in PBMC-RNA and vice versa. When HCV-RNA was detectable in PBMCpreparations, the HCV concentration in serum was significantly higher than the serum HCV-RNA concentration when HCV-RNA in PBMC was not detectable. Furthermore, at no time during the observation period was HCV specific RNA observed in PBMC, if HCV-RNA in serum was under the detection limit. Incubation of PBMCfrom healthy donors with several dilutions of HCV positive plasma for two hours showed a concentration-dependent PCR-positivity for HCV-RNA in reisolated PBMC.CONCLUSION The detectability of HCV-RNA in total RNA from PBMC seems to depend on the HCV concentration in serum. Contamination or passive adsorption by circulating virus could be the reason for detection of HCV-RNA in PBMCpreparations of chronically infected patients. | Volker Meier Sabine Mihm Perdita Wietzke-Braun Guliano Ramadori | 2001 | World Journal of Gastroenterology2001，7，2： | 29 |
| 3 | Expression of insulin-like growth factor Ⅱ and its receptor in hepatocellular carcinogenesis显示文摘INTRODUCTIONInsulin-like growth factor Ⅱ(IGF-Ⅱ) is a mitogenic peptide of 74 kD and is mostly synthesized in fetal liver tissue .IGF-Ⅱ is believed to play an important role in fetal growth and development and is involved in cellular proliferation and differentiation[1-5]. Recently ,several researchers have reported increased expression of the IGF-Ⅱgene in human hepatocellular carcinoma (HCC) and adjacent non-cancerous liver tissues [6-10]. | Zi Rong Fan Dong Hua Yang Jun Cui Han Rong Qin Chun Chi Huang Department of Gastroenterology, Zhujiang Hospital. The First Military Medical University, Guangzhou 510282.Guangdong Province. China | 2001 | World Journal of Gastroenterology2001，7，2： | 24 |
| 4 | Antisense to cyclin D1 reverses the transformed phenotype of human gastric cancer cells显示文摘INTRODUCTIONStudiesonthefunctionsofcelularprotooncogenesandtumorsuppresorgenesindicatethatmostofthesegenesmediatesignaltrans... | CHEN Bing 1, ZHANG Xue Yong 2, ZHANG Yu Jing 3, ZHOU Ping 3, GU Yan 4 and FAN Dai Ming 2 | 1999 | World Journal of Gastroenterology1999，5，1： | 23 |
| 5 | Relationship between expression of CD44v6 and nm23-H1 and tumor invasion and metastasis in hepatocellular carcinoma显示文摘INTRODUCTIONCD44isacelsurfacetransmembraneglycoprotein.Asakindofadhesivemolecule,itparticipatesincelcelandcelmatrixadhesion... | XIAO Cheng Zhi, DAI Yi Min, YU Hong Yu, WANG Jian Jun and NI Can Rong | 1998 | World Journal of Gastroenterology1998，4，5： | 23 |
| 6 | Codon 249 mutations of p53 gene in development of hepatocellular carcinoma显示文摘Codon249mutationsofp53geneindevelopmentofhepatocelularcarcinomaPENGXiaoMou,PENGWenWeiandYAOJiLuSubjectheadingsliverneopla... | Peng, XM Peng, WW Yao, JL | 1998 | World Journal of Gastroenterology1998，4，2： | 18 |
| 7 | Expressions of ICAM-1 and its mRNA in sera and tissues of patients with hepatocellular carcinoma显示文摘INTRODUCTIONThe increased expression of ICAM-1 on a widerange of cells and in the sera of patients withmalignancies, chronic liver diseases andinflammation diseases has been described since thelate 1980s[1-22]. Recently rapid progress in studieson expression of ICAM-1 in patients withhepatocellular carcinoma ( HCC ) have beenachieved, including clinical and experimentalresearches[23-31]. | Jing Xu1 Ming Hui Mei1 Si En Zeng2 Qing Fen Shi3 Yong Ming Liu4 Li Ling Qin3 1Department of Hepatobiliary Surgery2Department of Pathology3Institute of Hepatobiliary Surgery4Department of Biochemistry, Guilin 541001, Guangxi Province, China | 2001 | World Journal of Gastroenterology2001，7，1： | 14 |
| 8 | Hepatitis C virus RNA detection in serum and peripheral blood mononuclear cells of patients with hepatitis C显示文摘HepatitisCvirusRNAdetectioninserumandperipheralbloodmononuclearcelsofpatientswithhepatitisCZHOUPing,CAIQing,CHENYouChun,ZHA... | ZHOU Ping, CAI Qing, CHEN You Chun, ZHANG Mu Sen, GUAN Jian and LI Xiao Juan | 1997 | World Journal of Gastroenterology1997，3，2： | 10 |
| 9 | Genetic regulation by non-coding RNAs显示文摘Large scale cDNA sequencing and genome tiling array studies have shown that around 50% of genomic DNA in humans is transcribed, of which 2% is translated into proteins and the remaining 98% is non-coding RNAs (ncRNAs). There is mounting evidence that these ncRNAs play critical roles in regulating DNA structure, RNA expression, protein translation and protein functions through multiple genetic mechanisms, and thus affect normal development of organisms at all levels. Today, we know very little about the regulatory mechanisms and functions of these ncRNAs, which is clearly essential knowledge for understanding the secret of life. To promote this emerging research subject of critical importance, in this paper we review (1) ncRNAs' past and present, (2) regulatory mechanisms and their functions, (3) experimental strategies for identifying novel ncRNAs, (4) experimental strategies for investigating their functions, and (5) methodologies and examples of the application of ncRNAs. | QI Liwang, LI Xinmin, ZHANG Shougong & AN Daochang Laboratory of Cell Biology, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China Functional Genomics Facility, Division of Biological Science, University of Chicago, Chicago 60637, USA China National Center for Biotechnology and Development, Ministry of Science and Technology, Beijing 100081, China | 2006 | Science China(Life Sciences)2006，49，3： | 10 |
| 10 | Adhesion molecule and proinflammatory cytokine gene expression in hepatic sinusoidal endothelial cells following cecal ligation and puncture显示文摘INTRODUCTIONMultiple organ dysfunction syndrome (MODS) isthought to be a frequent consequence of sepsis[1-3].Despite substantial advances in our knowledge and understanding of the basic pathophysiologic mechanisms[4-7], in critically ill patients infections and sepsis are still associated with a high mortality[8,9]. | Rong Qian Wu Ying Xin Xu Xu Hua Song Li Jun Chen Xian Jun Meng Institute of Surgical Research, General Hospital of PLA, Beijing 100853, China | 2001 | World Journal of Gastroenterology2001，7，1： | 10 |
| 11 | Expression of liver cancer associated gene HCCA3显示文摘AIM: To study and clone a novel liver cancer reisted gene,and to explore the molecular basis of liver cancer genesis.METHODS: Using mRNA differential display polymerasechain reaction (DDPCR), we investigated the difference of mRNA in human hepatocellular carcinoma (HCC) and paired surrounding liver tissues, and got a gene probe. By screening a human placenta cDNA library and genomic homologous extend, we obtained a full-length cDNA named HCCA3. We analyzed the expression of this novel gene in 42pairs of HCC and the surrounding liver tissues, and distribution in human normal tissues by means of Northern blot assay.RESULTS: A full-length cDNA of liver cancer associated gene HCCA3 has been submitted to the GeneBank nucleotide sequence databases ( Accession No. AF276707 ). The positive expression rate of this gene was 78.6% (33/42) in HCC tissues, and the clinical pathological data showed that the HCCA3 was closely associated with the invasion of tumor capsule ( P = 0.023) and adjacant small metastasis satellite nodules lesions ( P= 0.041). The HCCA3 was widely distributed in the human normal tissues, which was intensively expressed in lungs, brain and colon tissues,while lowly expressed in the liver tissues.CONCLUSION: A novel full-length cDNA was cloned and differentiated, which was highly expressed in liver cancer tissues. The high expression was closely related to the tumor invasiveness and metastasis, that may be the late heredited change in HCC genesis. | Zheng-Xu Wang~1 Gui-Fang Hu~1 Hong-Yang Wang~2 Meng-Chao Wu~2 1 Department of General Surgery,Chinese PEA General Hospital of Lanzhou Military Command,Lanzhou 730050,Gansu Province,China2 Eastern Hepatobilliary Surgical Hospital,Second Military Medical University,Shanghai 200438,China | 2001 | World Journal of Gastroenterology2001，7，6： | 9 |
| 12 | A prospective study of vertical transmission of hepatitis C virus显示文摘AprospectivestudyofverticaltransmissionofhepatitisCvirusSUNDeGui1,LIUCaiYun1,MENGZongDa2,SUNYongDe2,WANGShuCong1,YANGYu... | SUN De Gui 1, LIU Cai Yun 1, MENG Zong Da 2, SUN Yong De 2, WANG Shu Cong 1, YANG Yu Qi 1, LIANG Zheng Lun 3 and ZHUANG Hui 3 | 1997 | World Journal of Gastroenterology1997，3，2： | 8 |
| 13 | 母系印迹表达基因3在结直肠癌组织中表达及其与血管生成的关系显示文摘目的:探讨结直肠癌组织中长链非编码RNA母系印迹表达基因3(MEG3)的表达及其与肿瘤血管生成的关系。方法:用RT-PCR法检测42例结直肠癌患者癌组织与对应的癌旁组织标本,以及人结肠癌SW48细胞与人正常结肠NCM460细胞中MEG3表达,分析MEG3表达与患者临床病理因素的关系;免疫组化法检测上述组织标本中血管内皮生长因子(VEGF)的表达及血管密度,分析VEGF表达、血管密度与MEG3表达的相关性。结果:MEG3相对表达量在结直肠癌组织明显低于癌旁组织(0.12 vs.1.00,P=0.003),在SW48细胞中明显低于NCM460细胞(0.15 vs.1.00,P=0.007);MEG3的相对表达量与患者肿瘤位置、浸润深度、分化程度和淋巴结转移无明显关系(均P>0.05)。结直肠癌组织中,VEGF表达与血管密度均明显高于癌旁组织(0.13 vs.0.09;50.34 vs.36.57,均P<0.05);MEG3表达水平和VEGF表达水平及血管密度均呈负相关(r=-0.304、-0.342,均P<0.05)。VEGF是MEG3表达水平的独立影响因素(P=0.005)。结论:结直肠癌组织中MEG3表达降低,从而可能促进肿瘤组织VEGF表达量与血管生成。 | 赵月鸣 邹玉凤 董莹 邢德君 | 2016 | 中国普通外科杂志2016，25，10： | 7 |
| 14 | Partial sequencing of 5' non-coding region of 7 HGV strains isolated from different areas of China显示文摘 | WANG Xing-Tai ZHUANG Hui SONG Hai-Bo Ll He-Min ZHANG Hua-Yuan and YU Yang(National Institute for the Control of bormceutical and BiologicalPriducts, Beijing 100050, China)(Department of Microbiology, Beijing Medical University, Beijing100083, China)(L | 1999 | World Journal of Gastroenterology1999，5，5： | 7 |
| 15 | Hepatitis G virus infection in patients with chronic non-A-E hepatitis显示文摘HepatitisGvirusinfectioninpatientswithchronicnonAEhepatitisCHANGJinHong,WEILai,DUShaoCai,WANGHao,SUNYanandTAOQiMinSubjec... | CHANG Jin Hong, WEI Lai, DU Shao Cai, WANG Hao, SUN Yan and TAO Qi Min | 1997 | World Journal of Gastroenterology1997，3，3： | 7 |
| 16 | Microarray,SAGE and their applications to cardiovascular diseases显示文摘The wealth of DNA data generated by the human genome project coupling with recently invented high-throughput gene expression profiling techniques has dramatically sped up the process for biomedical researchers on elucidating the role of genes in human diseases. One powerful method to reveal insight into gene functions is the systematic analysis of gene expression. Two popular high-throughput gene expression technologies, microarray and Serial Analysis of Gene Expression (SAGE) are capable of producing large amounts of gene expression data with the potential of providing novel insights into fundamental disease processes, especially complex syndromes such as cardiovascular disease, whose etiologies are due to multiple genetic factors and their interplay with the environment. Microarray and SAGE have already been used to examine gene expression patterns of cell-culture, animal and human tissues models of cardiovascular diseases. In this review, we will first give a brief introduction of microarray and SAGE technologies and point out their limitations. We will then discuss the major discoveries and the new biological insightsthat have emerged from their applications to cardiovascular diseases. Finally we will touch upon potential challenges and future developments in this area. | SHUI QING YE, TERA LAVOIE, DAVID C USHER, LI Q. ZHANG1 Division of Pulmonary and Critical Care Medicine, Johns Hopkins University, School of Medicine, Baltimore, MD 21224, USA2Department of Biological Science, University of Delaware, Newark, DE 19716, USA | 2002 | Cell Research2002，12，2： | 5 |
| 17 | Comparison of gene expression between normalcolon mucosa and colon carcinoma by means of messenger RNA differential display显示文摘 | Wang L Lu W Chen YG Zhou XM Gu JR | 1999 | World Journal of Gastroenterology1999，5，6： | 4 |
| 18 | Regulatory effects of lipopolysaccharide in murine macrophage proliferation显示文摘RegulatoryefectsoflipopolysaccharideinmurinemacrophageproliferationFANKaiSubjectheadingslipopolysaccharide;macrophage;granulo... | | 1998 | World Journal of Gastroenterology1998，4，2： | 4 |
| 19 | Expression of TNF mRNA in the internal organs after severe burn injury in rats显示文摘Tumor necrosis factor(TNF) mRNA was determined with dot blotting in various viscera 24 h after severe burn injury in rats. It was found that TNF mRNA was detected in the liver, kidneys, spleen,lungs and small intestines in normal conditions. After burn in | 袁建成 肖光夏 周立新 秦孝建 黎鳌 | 1995 | Journal of Medical Colleges of PLA(China)1995，10，1： | 4 |
| 20 | Detection of blood AFPmRNA in nude mice bearing human HCC using nested RT-PCR and its significance显示文摘DetectionofbloodAFPmRNAinnudemicebearinghumanHCCusingnestedRTPCRanditssignificanceLIUYang,ZHANGBaiHe,QIANGuangXiang,CHENHa... | LIU Yang, ZHANG BaiHe, QIAN GuangXiang, CHEN Han and WU MengChao | 1998 | World Journal of Gastroenterology1998，4，3： | 4 |
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