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    • 8. 发明申请
    • 14-3-3 SIGMA AS A BIOMARKER OF BASAL BREAST CANCER
    • 14-3-3 SIGMA作为基础乳腺癌的生物标志物
    • WO2010148370A1
    • 2010-12-23
    • PCT/US2010/039276
    • 2010-06-18
    • THE REGENTS OF THE UNIVERSITY OF CALIFORNIABOUDREAU, Aaron, T.BISSELL, Mina, J.
    • BOUDREAU, Aaron, T.BISSELL, Mina, J.
    • G01N33/574
    • G01N33/57415G01N2333/4703
    • 14-3-3sigma was initially described as a breast tumor suppressor silenced in about 80% of tumors. However, we show 14-3-3sigma expression correlates with acquisition of tumorigenicity and invasiveness, and that 14-3-3sigma coordinates directional cell migration by directly inhibiting actin polymerization (in vitro and in situ) downstream of canonical signaling pathways, thus defining regions of actin assembly within cells. By immunohistochemical analysis, 14-3-3sigma emerged as a highly sensitive and specific basal breast cancer biomarker, which when present, correlates with metastasis and poor outcome in independent patient cohorts. These data suggest that targeting 14-3-3sigma-regulated actin cytoskeletal dynamics may benefit patients having the basal-like breast cancer subtype.
    • 最初将14-3-3sigma描述为在约80%的肿瘤中沉默的乳腺肿瘤抑制因子。 然而,我们显示14-3-3sigma表达与获得致瘤性和侵袭性相关,14-3-3sigma通过直接抑制规范信号通路下游的肌动蛋白聚合(体外和原位)来协调定向细胞迁移,从而定义区域 的细胞内的肌动蛋白组装。 通过免疫组织化学分析,14-3-3sigma作为高度敏感和特异性的基底乳腺癌生物标志物出现,当存在时,与独立患者队列中的转移和不良结果相关。 这些数据表明靶向14-3-3sigma调节的肌动蛋白细胞骨架动力学可能有利于患有基底样乳腺癌亚型的患者。