Prediction of outcome of early ER+ breast cancer is improved using a biomarker panel, which includes Ki-67 and p53.

Prediction of outcome of early ER+ breast cancer is improved using a biomarker panel, which includes Ki-67 and p53.
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DOI:
10.1038/bjc.2011.228
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发表时间:
2011-07-12
影响因子:
8.8
通讯作者:
Sutherland, R. L.
Sutherland, R. L.
中科院分区:
医学1区
文献类型:
--
作者:
Millar, E. K. A.;Graham, P. H.;McNeil, C. M.;Browne, L.;O'Toole, S. A.;Boulghourjian, A.;Kearsley, J. H.;Papadatos, G.;Delaney, G.;Fox, C.;Nasser, E.;Capp, A.;Sutherland, R. L.

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本研究的目的是确定 Ki67 和 p53 的免疫组织化学 (IHC) 评估是否可以改善保乳治疗 (BCT) 后雌激素受体阳性 (ER+) 乳腺癌的预后。总共有 498 名患有浸润性乳腺癌的患者接受了 IHC 评估,这些患者来自 BCT 随机试验,有或没有瘤床放疗增强。 ER+肿瘤被分类为“管腔A”(LA):ER+和/或PR+、Ki-67低、p53−、HER2−或“管腔B”(LB):ER+和/或PR+和/或Ki-67高和/或p53+和/或HER2+。使用 Kaplan-Meier 和 Cox 比例风险方法来确定与同侧乳腺肿瘤复发 (IBTR)、局部区域复发 (LRR)、远处无转移生存 (DMFS) 和乳腺癌特异性生存 (BCSS) 的关系。总共有 73 名之前接受过 LA 的患者被重新分类为 LB:与单独使用 ER、PR、HER2 相比,增加了四倍多 (4.6-19.3%)。在多变量分析中,LB特征独立预测LRR(风险比(HR)3.612,95% CI 1.555-8.340,P=0.003)、DMFS(HR 3.023,95% CI 1.501-6.087,P=0.002)和BCSS(HR 3.617,95% CI) 1.629–8.031,P=0.002),但不是 IBTR。使用包括 Ki-67 和 p53 在内的标记物组可改善 ER+ 乳腺癌的预后评估。这可能有助于更好地定义一组预后不良的 ER+ 患者,内分泌治疗失败的可能性更大。
The aim of this study is to determine whether immunohistochemical (IHC) assessment of Ki67 and p53 improves prognostication of oestrogen receptor-positive (ER+) breast cancer after breast-conserving therapy (BCT). In all, 498 patients with invasive breast cancer from a randomised trial of BCT with or without tumour bed radiation boost were assessed using IHC. The ER+ tumours were classified as ‘luminal A’ (LA): ER+ and/or PR+, Ki-67 low, p53−, HER2− or ‘luminal B’ (LB): ER+ and/or PR+and/or Ki-67 high and/or p53+ and/or HER2+. Kaplan–Meier and Cox proportional hazards methodology were used to ascertain relationships to ispilateral breast tumour recurrence (IBTR), locoregional recurrence (LRR), distant metastasis-free survival (DMFS) and breast cancer-specific survival (BCSS). In all, 73 patients previously LA were re-classified as LB: a greater than four-fold increase (4.6–19.3%) compared with ER, PR, HER2 alone. In multivariate analysis, the LB signature independently predicted LRR (hazard ratio (HR) 3.612, 95% CI 1.555–8.340, P=0.003), DMFS (HR 3.023, 95% CI 1.501–6.087, P=0.002) and BCSS (HR 3.617, 95% CI 1.629–8.031, P=0.002) but not IBTR. The prognostic evaluation of ER+ breast cancer is improved using a marker panel, which includes Ki-67 and p53. This may help better define a group of poor prognosis ER+ patients with a greater probability of failure with endocrine therapy.
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影响因子: 45.3
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