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乳腺癌组织中Crk蛋白的表达及其临床意义 被引量:1

Expression of Crk protein in breast cancer and its clinical significance
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摘要 目的探讨Crk在乳腺癌中的表达及其临床意义。方法应用免疫组化方法检测Crk在125例乳腺癌和20例乳腺良性肿瘤组织中的表达,分析其与乳腺癌临床病理特征及预后的关系。结果Crk在乳腺癌组织中的阳性表达率为39.2%,明显高于在乳腺良性肿瘤中的表达(χ2=6.447,P=0.011),Crk表达与乳腺癌组织学分级(χ2=4.965,P=0.026)有关,与TNM分期(r=0.258,P=0.004)、淋巴结转移(r=0.261,P=0.004)和HER-2(r=0.287,P=0.021)呈正相关;Crk表达阳性组和阴性组的5年特异生存率分别为38.4%和63.4%,差异有统计学意义(P=0.018)。结论Crk蛋白在乳腺癌组织中表达上调,其高表达提示乳腺癌生物学恶性度较高,预后不良。对乳腺癌患者组织标本进行Crk检测,有助于指导乳腺癌患者的个体化治疗。 Objective To explore the Crk expression in breast cancer and its clinical significance. Methods The expression of Crk was detected in 125 breast cancer tissues and 20 benign tumor tissues by immunohistochemistry and the relationship with clinicopathological parameters and prognosis was analyzed. Results The positive rate of Crk expression in breast cancer was 39.2%,which was significantly higher than that in benign tumor tissues of breast(χ^2=6.447,P=0.011).Crk expression related to histologic grade (χ^2=4.965,P=0.026),and correlated positively with TNM stage (r=0.258,P=0.004),lymph node status(r=0.261,P=0.004) and HER-2 status(r=0.287,P=0.021).In addition,Kaplan-Meier curves of disease-specific survival analysis showed a significant difference between Crk positive group and negative group (P=0.018). Conclusions Crk protein expression is up-regulated in primary breast cancer,indicating a more aggressive phenotype and poor prognosis.Crk detection may provide valuable information for risk assessment and identify a subset of patients requiring more aggressive adjuvant therapy.
出处 《实用肿瘤杂志》 CAS 北大核心 2009年第5期446-449,共4页 Journal of Practical Oncology
基金 浙江省自然科学基金资助项目(Y207301)
关键词 乳腺肿瘤 Crk结合蛋白质 预后 免疫组织化学 breast neoplasms Crk-binding proteins prognosis immnohistochemistry
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参考文献12

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同被引文献11

  • 1Kobashigawa Y,Sakai M,Naito M,et al.Structural basis for the transforming activity of human cancer-related sig-naling adaptor protein CRK. Nature Structural and Molecular Biology . 2007
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  • 3Mortazavi F,Dubinett S,Rettig M.c-Crk proto-oncogenec ontributes to transcriptional repression of p120-catenin in non-small cell lung cancer cells. Clinical and Experimental Metastasis . 2011
  • 4Sarkar P,Saleh T,Tzeng SR,et al.Structural basis for regu-lation of the Crk signaling protein by a proline switch. Nat Chem Biol . 2011
  • 5Sarkar P,Saleh T,Tzeng SR,et al.Structural basis for regu-lation of the Crk signaling protein by a proline switch. Nat Chem Biol . 2011
  • 6Hiroshi N,Shinya T,Tsuda M.Molecular and immunhisto-chemical analysis of signaling adaptor protein Crk in human cancers. Cancer Letters . 2002
  • 7Takino T,Nakada M,Miyamori H,et al.CrkI adapter protein modulates cell migration and invasion in glioblastoma. Cancer Research . 2003
  • 8Sonia P,Rodrigues,et al.CrkI and CrkII Function as Key Signaling Integrators for Migration and Invasion of Cancer Cells. Molecular Cancer Research . 2005
  • 9Park TJ,Curran T.Crk and crk-like play essential overlapping roles downstream of disabled-1 in the reelin pathway. The Journal of Neuroscience . 2008
  • 10阴传敏,姚珍薇.信号接头蛋白c-Crk与恶性肿瘤关系的研究进展[J].重庆医学,2008,37(2):191-193. 被引量:3

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