By means of PCR,the gene encoding gD of bovine herpesvirus-1 (BHV-1) strain Luojing was amplified,cloned and sequenced.The nucleotide sequence of this gD gene was (1 251 bp,)encoding 417 amino acids.Comparied with the...By means of PCR,the gene encoding gD of bovine herpesvirus-1 (BHV-1) strain Luojing was amplified,cloned and sequenced.The nucleotide sequence of this gD gene was (1 251 bp,)encoding 417 amino acids.Comparied with the published P8-2 strain,the homology of the necleotide sequence is 99.92%,and that of the deduced amino acid sequence is 100%.The results indicated that gD of BHV-1 was highly conservative.展开更多
构建了 2个利用人类巨细胞病毒 ( HCMV)的启动子启动表达伪狂犬病病毒 Ea株糖蛋白 g D基因的真核表达质粒 p CIDI和 pc DDI,体外转染 BHK-2 1细胞 ,用间接免疫荧光法检测 ,证实糖蛋白 g D在细胞中得到表达。用表达质粒 p CIDI和 pc DDI...构建了 2个利用人类巨细胞病毒 ( HCMV)的启动子启动表达伪狂犬病病毒 Ea株糖蛋白 g D基因的真核表达质粒 p CIDI和 pc DDI,体外转染 BHK-2 1细胞 ,用间接免疫荧光法检测 ,证实糖蛋白 g D在细胞中得到表达。用表达质粒 p CIDI和 pc DDI作为核酸疫苗免疫 BALB/c小鼠 ,ELISA检测小鼠血清中抗伪狂犬病病毒的抗体 ,结果其滴度为 1∶ 1 2 8～ 1∶ 51 2。初步证实 ,用 g D基因作为核酸疫苗免疫动物 。展开更多
INTRODUCTIONGastric epithelial dysplasia (GED) hypothetically is a straight-forward concept: dysplastic epithelium replacing the normal gastric epithelium of the stomach [1].In the stomach ,like any other segment of t...INTRODUCTIONGastric epithelial dysplasia (GED) hypothetically is a straight-forward concept: dysplastic epithelium replacing the normal gastric epithelium of the stomach [1].In the stomach ,like any other segment of the gut ,it is defined as an unequivocal non-invasive epithelial change[2,3].The observation of gastric dysplasia as a cancerous lesion was recognized over a century ago ,but it is only after the advent of gastroscopy that its clinical significance has been stressed[4-7].展开更多
The gene encoding gD of isolate Luojing of infectious bovine rhinotracheitis virus(IBRV)was amplified, sequenced, and cloned into plasmid pcDNA 3.1, resulting in a recombinant pcDNA-gD. Groups of BALB/c mice were inj...The gene encoding gD of isolate Luojing of infectious bovine rhinotracheitis virus(IBRV)was amplified, sequenced, and cloned into plasmid pcDNA 3.1, resulting in a recombinant pcDNA-gD. Groups of BALB/c mice were injected with 100 μg of plasmid only or together with liposome. After immunization, serum samples were collected from mice every 2 weeks for a 10-week period and tested for protein-specific antibody with enzyme-linked immunosorbent assay(ELISA). It was showed that the plasmid encoding IBRV glycopretein D developed gene-specific antibody. This report indicates the potential of DNA injection as a method of vaccination.展开更多
<strong>Background:</strong> Oncolytic herpes simplex virus (oHSV) have been proved effective and safe to treat tumors. Glycoprotein D (gD) has been engineered for targeting cancer cells and de-targeting n...<strong>Background:</strong> Oncolytic herpes simplex virus (oHSV) have been proved effective and safe to treat tumors. Glycoprotein D (gD) has been engineered for targeting cancer cells and de-targeting normal cells successfully, however, the effectiveness and safety of oHSVs still need to be improved. <strong>Method:</strong> Here we sequenced the DNA encoding gD of our recently isolated new strain HSV-1-LXMW and compared the gD amino acid sequence with the gDs of other 7 HSV-1 and 3 HSV-2 strains. <strong>Results:</strong> Phylogenetic analysis revealed that HSV-1-LXMW is evolutionarily close to HSV-1-Patton and -KOS strains. The gD amino acid sequence alignment identified 19 conserved and 8 variable regions. We further predicted 10 new motifs in HSV gD for the first time and identified motif differences in HSV-1 and HSV-2. We summarized the gD-engineered oHSVs and found that some of the newly identified gD motifs are actually functional. <strong>Conclusion:</strong> Our results shed light on HSV gD biology and provided new directions for future gD functional studies and engineering in order to make better oHSVs.展开更多
文摘By means of PCR,the gene encoding gD of bovine herpesvirus-1 (BHV-1) strain Luojing was amplified,cloned and sequenced.The nucleotide sequence of this gD gene was (1 251 bp,)encoding 417 amino acids.Comparied with the published P8-2 strain,the homology of the necleotide sequence is 99.92%,and that of the deduced amino acid sequence is 100%.The results indicated that gD of BHV-1 was highly conservative.
文摘构建了 2个利用人类巨细胞病毒 ( HCMV)的启动子启动表达伪狂犬病病毒 Ea株糖蛋白 g D基因的真核表达质粒 p CIDI和 pc DDI,体外转染 BHK-2 1细胞 ,用间接免疫荧光法检测 ,证实糖蛋白 g D在细胞中得到表达。用表达质粒 p CIDI和 pc DDI作为核酸疫苗免疫 BALB/c小鼠 ,ELISA检测小鼠血清中抗伪狂犬病病毒的抗体 ,结果其滴度为 1∶ 1 2 8～ 1∶ 51 2。初步证实 ,用 g D基因作为核酸疫苗免疫动物 。
基金Supported by the Science Fund of Health Department,No.95A2141.and the Science Fund of Health Bureau of Shanghai.No.982019
文摘INTRODUCTIONGastric epithelial dysplasia (GED) hypothetically is a straight-forward concept: dysplastic epithelium replacing the normal gastric epithelium of the stomach [1].In the stomach ,like any other segment of the gut ,it is defined as an unequivocal non-invasive epithelial change[2,3].The observation of gastric dysplasia as a cancerous lesion was recognized over a century ago ,but it is only after the advent of gastroscopy that its clinical significance has been stressed[4-7].
文摘The gene encoding gD of isolate Luojing of infectious bovine rhinotracheitis virus(IBRV)was amplified, sequenced, and cloned into plasmid pcDNA 3.1, resulting in a recombinant pcDNA-gD. Groups of BALB/c mice were injected with 100 μg of plasmid only or together with liposome. After immunization, serum samples were collected from mice every 2 weeks for a 10-week period and tested for protein-specific antibody with enzyme-linked immunosorbent assay(ELISA). It was showed that the plasmid encoding IBRV glycopretein D developed gene-specific antibody. This report indicates the potential of DNA injection as a method of vaccination.
文摘<strong>Background:</strong> Oncolytic herpes simplex virus (oHSV) have been proved effective and safe to treat tumors. Glycoprotein D (gD) has been engineered for targeting cancer cells and de-targeting normal cells successfully, however, the effectiveness and safety of oHSVs still need to be improved. <strong>Method:</strong> Here we sequenced the DNA encoding gD of our recently isolated new strain HSV-1-LXMW and compared the gD amino acid sequence with the gDs of other 7 HSV-1 and 3 HSV-2 strains. <strong>Results:</strong> Phylogenetic analysis revealed that HSV-1-LXMW is evolutionarily close to HSV-1-Patton and -KOS strains. The gD amino acid sequence alignment identified 19 conserved and 8 variable regions. We further predicted 10 new motifs in HSV gD for the first time and identified motif differences in HSV-1 and HSV-2. We summarized the gD-engineered oHSVs and found that some of the newly identified gD motifs are actually functional. <strong>Conclusion:</strong> Our results shed light on HSV gD biology and provided new directions for future gD functional studies and engineering in order to make better oHSVs.
