STAT3 genetic variant, alone and in combination with STAT5b polymorphism, contributes to breast cancer risk and clinical outcomes

STAT3 genetic variant, alone and in combination with STAT5b polymorphism, contributes to breast cancer risk and clinical outcomes
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STAT3 遗传变异单独或与 STAT5b 多态性结合,有助于乳腺癌风险和临床结果

DOI:
10.1007/s12032-014-0375-z
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发表时间:
2014
期刊:
影响因子:
3.4
通讯作者:
魏敏杰
魏敏杰
中科院分区:
医学4区
文献类型:
--
作者:
赵海山;王喆;吴慧哲;肖庆桓;姚维范;王恩华;刘勇;魏敏杰

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信号转导子和转录激活子(STAT)家族蛋白的遗传或异常激活在多种人类恶性肿瘤的疾病进展中起重要作用,但没有关于候选基因和乳腺癌(BC)风险的数据。为了解决这个问题,我们研究了STAT 3,STAT 5 b多态性和BC易感性,临床病理参数和临床结果之间的相关性。采用TaqMan和PCR-RFLP方法对1,240例BC患者和882例健康对照进行病例对照研究。BC的风险显著降低与STAT 3 G等位基因和联合效应(验证等位基因)相关。此外,携带STAT 3 rs 4796793和STAT 5 b rs6503691联合效应的蒽环类化疗后患者的无进展生存期(PFS)显著增加[校正HR(95% CI)0.831(0.704-0.980),P = 0.028]。更重要的是,ER阴性的STAT 5 b CT/TT基因型患者的PFS较长[校正HR(95%CI)0.519(0.293-0.920),P = 0.025],无复发生存期[校正HR(95%CI)0.529(0.298-0.939),P = 0.030]和总生存期[校正的HR(95% CI)0.547(0.308-0.973),P = 0.040]。这些结果表明,STAT 3和STAT 5 b多态性可能是一个候选的药物基因组学因素,以评估易感性和预后的BC患者。
The genetic or abnormal activation of signal transducer and activator of transcription (STATs) family proteins play an important role with regard to disease progression in variety of human malignancies, yet no data are available for candidate gene and breast cancer (BC) risk. To address this, we investigate the correlation between STAT3, STAT5b polymorphisms and BC susceptibility, clinicopathological parameters, and clinical outcomes. A case-control study was carried out in 1,240 BC patients and 882 healthy controls using TaqMan assay and PCR-RFLP method. A significant decreased risk of BC was associated with STAT3 G allele and combined effect (validation alleles). Furthermore, patients after anthracycline-based chemotherapy, carrying combined effect of STAT3 rs4796793 and STAT5b rs6503691, had significantly increased progression-free survival (PFS) [adjusted HR (95 % CI) 0.831 (0.704-0.980), P = 0.028]. More importantly, ER-negative patients with STAT5b CT/TT genotype was associated with a longer PFS [adjusted HR (95 % CI) 0.519 (0.293-0.920), P = 0.025], recurrence-free survival [adjusted HR (95 % CI) 0.529 (0.298-0.939), P = 0.030], and overall survival [adjusted HR (95 % CI) 0.547 (0.308-0.973), P = 0.040]. These results indicated that STAT3 and STAT5b polymorphisms might be a candidate pharmacogenomic factor to assess susceptibility and prognosis in BC patients.
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