AIM: In order to obtain lymphogenous metastasisassociated genes, we compared the transcriptional profiles of mouse hepatocarcinoma cell lines Hca-F with highly lymphatic metastasis potential and Hca-P with low lymphat...AIM: In order to obtain lymphogenous metastasisassociated genes, we compared the transcriptional profiles of mouse hepatocarcinoma cell lines Hca-F with highly lymphatic metastasis potential and Hca-P with low lymphatic metastasis potential.METHODS: Total RNA was isolated from Hca-F and Hca-P cells and synthesized into double-stranded cDNA. In vitro transcription double-stranded cDNA was labeled with biotin (i.e. biotin-labeled cRNA, used as the probe). The cRNA probes hybridized with Affymetrix GeneChip() MOE430A (containing 22 690 transcripts, including 14 500 known mouse genes and 4 371 ESTs) respectively and the signals were scanned by the GeneArray Scanner. The results were then analyzed by bioinformatics.RESULTS: Out of the 14 500 known genes investigated,110 (0.8%) were up regulated at least 23 fold. Among the total 4 371 ESTs, 17 ESTs (0.4%) (data were not presented) were up regulated at least 23 fold. According to the Gene Ontology and TreeView analysis, the 110genes were further classified into two groups: differential biological process profile and molecular function profile.CONCLUSION: Using high-throughput gene chip method,a large number of genes and their cellular functions about angiogenesis, cell adhesion, signal transduction, cell motility, transport, microtubule-based process, cytoskeleton organization and biogenesis, cell cycle, transcription,chaperone activity, motor activity, protein kinase activity,receptor binding and protein binding might be involved in the process of lymphatic metastasis and deserve to be used as potential candidates for further investigation.Cyclin D1, Fosl1, Hsp47, EGFR and AR, and Cav-1 are selected as the possible candidate genes of the metastatic phenotype, which need to be validated in later experiments.ESTs (data were not presented) might indicate novel genes associated with lymphatic metastasis. Validating the function of these genes is helpful to identify the key or candidate gene/pathway responsible for lymphatic metastasis, which might be used as the diagnostic markers and the therapeutic targets for lymphatic metastasis.展开更多
目的考察槲皮素PLGA-TPGS纳米粒(QPTN)在体内对荷腹水型肝癌高淋巴道转移细胞HCa-F小鼠异位移植实体瘤的治疗效果。方法建立荷HCa-F肝癌细胞小鼠模型后,随机分为阴性对照组、空白纳米粒组、5-氟尿嘧啶溶液(FS)组、槲皮素溶液(QTS)组、...目的考察槲皮素PLGA-TPGS纳米粒(QPTN)在体内对荷腹水型肝癌高淋巴道转移细胞HCa-F小鼠异位移植实体瘤的治疗效果。方法建立荷HCa-F肝癌细胞小鼠模型后,随机分为阴性对照组、空白纳米粒组、5-氟尿嘧啶溶液(FS)组、槲皮素溶液(QTS)组、槲皮素PLGA纳米粒(QPN)组和QPTN组。尾静脉给药,每2 d 1次,连续给药20 d后处死小鼠,剥离肿瘤,称质量,测量肿瘤体积,根据公式计算肿瘤体积增长量和抑瘤率;行HE染色观察肿瘤,全面评价QPTN对荷瘤小鼠的治疗效果。结果小鼠体内给药10次后,QPTN组、QPN组、FS组的肿瘤体积增长量与阴性对照组相比明显减小(P<0.05或P<0.01),QPTN组抑瘤率(59.07%)明显高于QTS组(23.94%)、FS组(35.14%)和QPN组(46.14%)。HE染色结果也显示QPTN组对小鼠肿瘤的治疗效果最明显。结论与QPN、QTS和FS相比,QPTN对荷HCa-F肝癌细胞小鼠异位实体瘤具有较好的治疗效果。展开更多
基金Supported by the National Natural Science Foundation of China,No. 30371583
文摘AIM: In order to obtain lymphogenous metastasisassociated genes, we compared the transcriptional profiles of mouse hepatocarcinoma cell lines Hca-F with highly lymphatic metastasis potential and Hca-P with low lymphatic metastasis potential.METHODS: Total RNA was isolated from Hca-F and Hca-P cells and synthesized into double-stranded cDNA. In vitro transcription double-stranded cDNA was labeled with biotin (i.e. biotin-labeled cRNA, used as the probe). The cRNA probes hybridized with Affymetrix GeneChip() MOE430A (containing 22 690 transcripts, including 14 500 known mouse genes and 4 371 ESTs) respectively and the signals were scanned by the GeneArray Scanner. The results were then analyzed by bioinformatics.RESULTS: Out of the 14 500 known genes investigated,110 (0.8%) were up regulated at least 23 fold. Among the total 4 371 ESTs, 17 ESTs (0.4%) (data were not presented) were up regulated at least 23 fold. According to the Gene Ontology and TreeView analysis, the 110genes were further classified into two groups: differential biological process profile and molecular function profile.CONCLUSION: Using high-throughput gene chip method,a large number of genes and their cellular functions about angiogenesis, cell adhesion, signal transduction, cell motility, transport, microtubule-based process, cytoskeleton organization and biogenesis, cell cycle, transcription,chaperone activity, motor activity, protein kinase activity,receptor binding and protein binding might be involved in the process of lymphatic metastasis and deserve to be used as potential candidates for further investigation.Cyclin D1, Fosl1, Hsp47, EGFR and AR, and Cav-1 are selected as the possible candidate genes of the metastatic phenotype, which need to be validated in later experiments.ESTs (data were not presented) might indicate novel genes associated with lymphatic metastasis. Validating the function of these genes is helpful to identify the key or candidate gene/pathway responsible for lymphatic metastasis, which might be used as the diagnostic markers and the therapeutic targets for lymphatic metastasis.
文摘目的考察槲皮素PLGA-TPGS纳米粒(QPTN)在体内对荷腹水型肝癌高淋巴道转移细胞HCa-F小鼠异位移植实体瘤的治疗效果。方法建立荷HCa-F肝癌细胞小鼠模型后,随机分为阴性对照组、空白纳米粒组、5-氟尿嘧啶溶液(FS)组、槲皮素溶液(QTS)组、槲皮素PLGA纳米粒(QPN)组和QPTN组。尾静脉给药,每2 d 1次,连续给药20 d后处死小鼠,剥离肿瘤,称质量,测量肿瘤体积,根据公式计算肿瘤体积增长量和抑瘤率;行HE染色观察肿瘤,全面评价QPTN对荷瘤小鼠的治疗效果。结果小鼠体内给药10次后,QPTN组、QPN组、FS组的肿瘤体积增长量与阴性对照组相比明显减小(P<0.05或P<0.01),QPTN组抑瘤率(59.07%)明显高于QTS组(23.94%)、FS组(35.14%)和QPN组(46.14%)。HE染色结果也显示QPTN组对小鼠肿瘤的治疗效果最明显。结论与QPN、QTS和FS相比,QPTN对荷HCa-F肝癌细胞小鼠异位实体瘤具有较好的治疗效果。
