目的研究半胱氨酸蛋白酶抑制因子Cystatin 6(CST6)在结肠癌中的表达及其与肿瘤血管生成的关系。方法利用肿瘤基因组图谱数据库(The Cancer Genome Atlas,TCGA)分析CST6在正常结肠上皮、无转移性结肠癌和转移性结肠癌组织中的表达差异,...目的研究半胱氨酸蛋白酶抑制因子Cystatin 6(CST6)在结肠癌中的表达及其与肿瘤血管生成的关系。方法利用肿瘤基因组图谱数据库(The Cancer Genome Atlas,TCGA)分析CST6在正常结肠上皮、无转移性结肠癌和转移性结肠癌组织中的表达差异,并探讨其表达高低与结肠癌预后的关系。同时,采用基因富集分析(gene set enrichment analysis,GSEA)及免疫组化方法探究结肠癌中CST6所影响的信号通路及可能的作用机制。结果(1)CST6在结肠癌中的表达明显高于正常结肠上皮,转移性结肠癌中CST6表达水平明显高于无转移结肠癌;(2)具有高CST6表达水平的结肠癌患者疾病特异性生存期以及无进展生存期显著缩短;(3)GSEA分析提示在结肠癌中CST6高表达的患者中,上皮-间充质转化和血管生成通路显著富集;(4)结肠癌中CST6与血管生成相关因子PDGFR的表达呈现正相关。结论CST6在结肠癌组织中呈高表达,高表达CST6的结肠癌患者预后更差,可能与其促进肿瘤血管生成作用有关,提示其可能在结肠癌中作为一个新型癌基因发挥作用。展开更多
Researches on factors that affecting earnings quality are significant for regulators' decisions and the improving of earnings quality. After reviewing the research findings on what are affecting earnings qualities fr...Researches on factors that affecting earnings quality are significant for regulators' decisions and the improving of earnings quality. After reviewing the research findings on what are affecting earnings qualities from the following 6 fields: accounting standards, firm characteristics, board and auditing committees' characteristics, managerial characteristics, auditing firm characteristics and other factors, the author conclude the current findings and foresee the future research focus on earnings quality.展开更多
文摘目的研究半胱氨酸蛋白酶抑制因子Cystatin 6(CST6)在结肠癌中的表达及其与肿瘤血管生成的关系。方法利用肿瘤基因组图谱数据库(The Cancer Genome Atlas,TCGA)分析CST6在正常结肠上皮、无转移性结肠癌和转移性结肠癌组织中的表达差异,并探讨其表达高低与结肠癌预后的关系。同时,采用基因富集分析(gene set enrichment analysis,GSEA)及免疫组化方法探究结肠癌中CST6所影响的信号通路及可能的作用机制。结果(1)CST6在结肠癌中的表达明显高于正常结肠上皮,转移性结肠癌中CST6表达水平明显高于无转移结肠癌;(2)具有高CST6表达水平的结肠癌患者疾病特异性生存期以及无进展生存期显著缩短;(3)GSEA分析提示在结肠癌中CST6高表达的患者中,上皮-间充质转化和血管生成通路显著富集;(4)结肠癌中CST6与血管生成相关因子PDGFR的表达呈现正相关。结论CST6在结肠癌组织中呈高表达,高表达CST6的结肠癌患者预后更差,可能与其促进肿瘤血管生成作用有关,提示其可能在结肠癌中作为一个新型癌基因发挥作用。
文摘Researches on factors that affecting earnings quality are significant for regulators' decisions and the improving of earnings quality. After reviewing the research findings on what are affecting earnings qualities from the following 6 fields: accounting standards, firm characteristics, board and auditing committees' characteristics, managerial characteristics, auditing firm characteristics and other factors, the author conclude the current findings and foresee the future research focus on earnings quality.