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    • 20. 发明申请
    • LASER MICRODISSECTION AND MICROARRAY ANALYSIS OF BREAST TUMORS REVEAL ESTROGEN RECEPTOR RELATED GENES AND PATHWAYS
    • 乳腺肿瘤的激光微观分析和微观分析相关基因和途径
    • WO2006108135A8
    • 2007-11-15
    • PCT/US2006013004
    • 2006-04-03
    • VERIDEX LLCLEHNHARDT SUSANYU JACKJIANG YUQIUYANG FEIWANG YIXIN
    • YU JACKJIANG YUQIUYANG FEIWANG YIXIN
    • C12Q1/68
    • C12Q1/6806C12Q1/6886C12Q2600/106C12Q2600/112C12Q2600/154C12Q2600/158
    • About 70% to 80% of breast cancers express estrogen receptor-a (ERa), and estrogens play important roles in the development and growth of hormone-dependent tumors. Together with lymph node metastasis, tumor size and histological grade, ER status is considered one of the prognostic factors in breast cancer, and an indicator for hormonal treatment. 147 genes and 112 genes with significant P- value and having significant differential expression between ER+ and ER- tumors were identified from the LCM data set and bulk tissue data set, respectively. 61 genes were found to be common in both data sets, while 85 genes were unique to the LCM data set and 51 genes were present only in the bulk tumor data set. Pathway analysis with the 85 genes using Gene Ontology suggested that genes involved in endocytosis, ceramide generation, Ras/ERK/Ark cascade, and JAT- STAT pathway may play roles related to ER. The gene profiling with LCM-captured tumpr cells provides a unique approach to characterize and study epithelial tumor cells and to gain an insight into signaling pathways associated with ER.
    • 大约70%至80%的乳腺癌表达雌激素受体-a(ERα),雌激素在激素依赖性肿瘤的发育和生长中起重要作用。 与淋巴结转移,肿瘤大小和组织学分级一起,ER状态被认为是乳腺癌的预后因素之一,也是激素治疗的指标。 分别从LCM数据集和体组织数据集中分别鉴定了147个基因和112个具有显着P值且具有ER +和ER-肿瘤差异表达的基因。 发现61个基因在两个数据集中都是常见的,而85个基因是LCM数据集所独有的,51个基因仅存在于肿瘤数据集中。 使用Gene Ontology的85个基因的途径分析表明,参与内吞作用,神经酰胺生成,Ras / ERK / Ark级联和JAT-STAT通路的基因可能发挥与ER相关的作用。 用LCM捕获的Tumpr细胞进行基因分析提供了一种独特的方法来表征和研究上皮肿瘤细胞,并获得与ER相关的信号传导途径的洞察。