Forkhead Box c2 （FOXC2） is a member of forkhead/winged-helix family of transcription factors. The relationship between FOXC2 and invasive breast cancers, including basal-like breast cancer （BLBC, a subtype of breas...Forkhead Box c2 （FOXC2） is a member of forkhead/winged-helix family of transcription factors. The relationship between FOXC2 and invasive breast cancers, including basal-like breast cancer （BLBC, a subtype of breast cancer）, remains to be elucidated. In this study, immunohistochemistry was used to detect the expression of FOXC2 in samples from 103 cases of invasive breast cancers and 15 cases of normal mammary glands. The relationship between FOXC2 and clinical parameters of invasive breast cancers such as patient＇s age, tumor size, lymph node metastasis, tumor grade, the expression of ER, PR, HER-2 and p53, and Ki-67 labeling index （LI） was evaluated. The expression of FOXC2 was detected in parent MCF7 ceils, MCF cells transfected with FOXC2 expression vectors and MDA-MB- 435 cells by immunohistochemistry and Western blotting. Transwell assay was used to determine the invasive ability of these cells. The results showed that FOXC2 was strongly expressed in basal epithelial cells in normal mammary glands and weakly expressed or even not expressed in glandular epithelial cells. The majority of invasive breast cancers （71.8%, 74/103） had negative or weak expression of FOXC2. However, FOXC2 was strongly expressed in 60.7% of BLBCs. Moreover, FOXC2 was related with tumor grade, p53 expression, ki-67 LI and lymph nodes metastasis. It was expressed in FOXC2- transfected MCF cells and MDA-MB-435 cells but not in parent MCF cells. Transwell assay revealed that MCF cells transfected with FOXC2 expression vectors were more aggressive than the parent MCF ceils, suggesting a positive correlation between FOXC2 and the invasion of breast cancer. It was con- cluded that there is a significant association between FOXC2 and the metastasis of invasive breast can- cer. FOXC2 may be used as a new marker for the diagnosis and prognosis prediction of different sub- tvpes of invasive breast cancers.展开更多
目的:检测FOXC2在肝外胆管细胞癌(EHCC)中表达的临床意义,并初步探讨FOXC2在体外对EHCC肿瘤细胞增殖、侵袭迁移和上皮间质转化的作用。方法:免疫组织化学法检测FOXC2在EHCC组织和正常胆管组织中的表达;qRT-PCR检测FOXC2 m RNA在EHCC组...目的:检测FOXC2在肝外胆管细胞癌(EHCC)中表达的临床意义,并初步探讨FOXC2在体外对EHCC肿瘤细胞增殖、侵袭迁移和上皮间质转化的作用。方法:免疫组织化学法检测FOXC2在EHCC组织和正常胆管组织中的表达;qRT-PCR检测FOXC2 m RNA在EHCC组织和正常胆管组织中的表达;分析FOXC2表达水平与患者临床病理因素和预后的关系。选择FOXC2高表达的HuCCT1细胞进行转染敲降FOXC2,CCK-8实验检测细胞增殖活力;Transwell实验检测细胞的迁移和侵袭能力;Westernblot检测上皮间质转化蛋白E-cadherin、N-cadherin、Vimentin和MMP-2的表达。结果:免疫组化结果表明,77例EHCC样本中68例(88.3%)FOXC2表达阳性。qRT-PCR检测结果表明FOXC2mRNA在EHCC组织的表达水平显著高于正常胆管上皮组织。FOXC2表达水平与EHCC患者肿瘤组织分化、临床病理分级、淋巴侵犯等相关;进一步分析发现,FOXC2高表达组患者预后较差,且FOXC2高表达是影响EHCC患者临床预后的独立危险因素。体外实验结果显示,敲降FOXC2显著降低HuCCT1细胞侵袭和迁移能力,但不改变细胞增殖活力;显著降低EMT蛋白N-cadherin、Vimentin和MMP-2的表达,促进E-cadherin的表达。结论:FOXC2在EHCC组织中的高表达促进肿瘤进展并与患者不良预后相关,可能与FOXC2促进EHCC癌细胞的侵袭、迁移和上皮间质转化有关。展开更多
妇科常见恶性肿瘤发病率及致死率近年来均有所上升,严重威胁女性健康,且发病人群有年轻化趋势,早期诊治可提高患者的生存率及生活质量。叉头框蛋白C2(Forkhead box protein C2,FOXC2),隶属于FOX蛋白家族中的FOXC亚家族,主要见于胚胎发...妇科常见恶性肿瘤发病率及致死率近年来均有所上升,严重威胁女性健康,且发病人群有年轻化趋势,早期诊治可提高患者的生存率及生活质量。叉头框蛋白C2(Forkhead box protein C2,FOXC2),隶属于FOX蛋白家族中的FOXC亚家族,主要见于胚胎发育阶段,是肿瘤发生和疾病进展的关键因素,近年来在恶性肿瘤的表达、治疗及预后评估中有较广泛的应用。本文就FOXC2在常见的妇科恶性肿瘤中的研究现状进行综述。展开更多
基金supported by a grant from the National Natural Science Foundation of China(No.30570725)
文摘Forkhead Box c2 （FOXC2） is a member of forkhead/winged-helix family of transcription factors. The relationship between FOXC2 and invasive breast cancers, including basal-like breast cancer （BLBC, a subtype of breast cancer）, remains to be elucidated. In this study, immunohistochemistry was used to detect the expression of FOXC2 in samples from 103 cases of invasive breast cancers and 15 cases of normal mammary glands. The relationship between FOXC2 and clinical parameters of invasive breast cancers such as patient＇s age, tumor size, lymph node metastasis, tumor grade, the expression of ER, PR, HER-2 and p53, and Ki-67 labeling index （LI） was evaluated. The expression of FOXC2 was detected in parent MCF7 ceils, MCF cells transfected with FOXC2 expression vectors and MDA-MB- 435 cells by immunohistochemistry and Western blotting. Transwell assay was used to determine the invasive ability of these cells. The results showed that FOXC2 was strongly expressed in basal epithelial cells in normal mammary glands and weakly expressed or even not expressed in glandular epithelial cells. The majority of invasive breast cancers （71.8%, 74/103） had negative or weak expression of FOXC2. However, FOXC2 was strongly expressed in 60.7% of BLBCs. Moreover, FOXC2 was related with tumor grade, p53 expression, ki-67 LI and lymph nodes metastasis. It was expressed in FOXC2- transfected MCF cells and MDA-MB-435 cells but not in parent MCF cells. Transwell assay revealed that MCF cells transfected with FOXC2 expression vectors were more aggressive than the parent MCF ceils, suggesting a positive correlation between FOXC2 and the invasion of breast cancer. It was con- cluded that there is a significant association between FOXC2 and the metastasis of invasive breast can- cer. FOXC2 may be used as a new marker for the diagnosis and prognosis prediction of different sub- tvpes of invasive breast cancers.
文摘目的:检测FOXC2在肝外胆管细胞癌(EHCC)中表达的临床意义,并初步探讨FOXC2在体外对EHCC肿瘤细胞增殖、侵袭迁移和上皮间质转化的作用。方法:免疫组织化学法检测FOXC2在EHCC组织和正常胆管组织中的表达;qRT-PCR检测FOXC2 m RNA在EHCC组织和正常胆管组织中的表达;分析FOXC2表达水平与患者临床病理因素和预后的关系。选择FOXC2高表达的HuCCT1细胞进行转染敲降FOXC2,CCK-8实验检测细胞增殖活力;Transwell实验检测细胞的迁移和侵袭能力;Westernblot检测上皮间质转化蛋白E-cadherin、N-cadherin、Vimentin和MMP-2的表达。结果:免疫组化结果表明,77例EHCC样本中68例(88.3%)FOXC2表达阳性。qRT-PCR检测结果表明FOXC2mRNA在EHCC组织的表达水平显著高于正常胆管上皮组织。FOXC2表达水平与EHCC患者肿瘤组织分化、临床病理分级、淋巴侵犯等相关;进一步分析发现,FOXC2高表达组患者预后较差,且FOXC2高表达是影响EHCC患者临床预后的独立危险因素。体外实验结果显示,敲降FOXC2显著降低HuCCT1细胞侵袭和迁移能力,但不改变细胞增殖活力;显著降低EMT蛋白N-cadherin、Vimentin和MMP-2的表达,促进E-cadherin的表达。结论:FOXC2在EHCC组织中的高表达促进肿瘤进展并与患者不良预后相关,可能与FOXC2促进EHCC癌细胞的侵袭、迁移和上皮间质转化有关。
文摘妇科常见恶性肿瘤发病率及致死率近年来均有所上升,严重威胁女性健康,且发病人群有年轻化趋势,早期诊治可提高患者的生存率及生活质量。叉头框蛋白C2(Forkhead box protein C2,FOXC2),隶属于FOX蛋白家族中的FOXC亚家族,主要见于胚胎发育阶段,是肿瘤发生和疾病进展的关键因素,近年来在恶性肿瘤的表达、治疗及预后评估中有较广泛的应用。本文就FOXC2在常见的妇科恶性肿瘤中的研究现状进行综述。
