A serum microRNA signature predicts trastuzumab benefit in HER2-positive metastatic breast cancer patients.

A serum microRNA signature predicts trastuzumab benefit in HER2-positive metastatic breast cancer patients.
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血清 microRNA 特征预测曲妥珠单抗对 HER2 阳性转移性乳腺癌患者的益处

DOI:
10.1038/s41467-018-03537-w
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发表时间:
2018-04-24
影响因子:
16.6
通讯作者:
Song E
Song E
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Li H;Liu J;Chen J;Wang H;Yang L;Chen F;Fan S;Wang J;Shao B;Yin D;Zeng M;Li M;Li J;Su F;Liu Q;Yao H;Su S;Song E

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曲妥珠单抗是HER 2阳性(HER 2+)乳腺癌的标准治疗方法,但有些患者对该疗法难以治疗。MicroRNA(miRNAs)已被用于预测各种癌症的治疗效果,但miRNAs是否可以作为HER 2+转移性乳腺癌(MBC)患者的生物标志物仍不清楚。利用miRNA微阵列技术,我们在对曲妥珠单抗有不同应答的HER 2 + MBC患者血清中鉴定出13个差异表达的miRNA,并选择其中4个miRNA构建LASSO模型预测生存。此外,我们的数据显示miR-940主要从肿瘤细胞释放,而miR-451 a、miR-16- 5 p和miR-17- 3 p主要从免疫细胞释放。所有这四种miRNAs都直接靶向在调节曲妥珠单抗耐药性中起关键作用的信号分子。总之,我们开发了一种基于血清的miRNA标签,可以预测曲妥珠单抗对HER 2 + MBC患者的治疗益处,并保证在前瞻性临床试验中进行进一步验证。对于转移性乳腺癌(MBC)患者来说,对治疗的抵抗是一个重要问题。在这里,作者分析了386名MBC患者治疗前血清样本中的总miRNA,随访31个月,并定义了预测曲妥珠单抗治疗益处的四种miRNA特征。
Trastuzumab is a standard treatment for HER2-positive (HER2+) breast cancer, but some patients are refractory to the therapy. MicroRNAs (miRNAs) have been used to predict therapeutic effects for various cancers, but whether miRNAs can serve as biomarkers for HER2+ metastatic breast cancer (MBC) patients remains unclear. Using miRNA microarray, we identify 13 differentially expressed miRNAs in the serum of HER2+ MBC patients with distinct response to trastuzumab, and four miRNAs are selected to construct a signature to predict survival using LASSO model. Further, our data show that miR-940 is mainly released from the tumor cells and miR-451a, miR-16-5p and miR-17-3p are mainly from the immune cells. All these four miRNAs directly target signaling molecules that play crucial roles in regulating trastuzumab resistance. In summary, we develop a serum-based miRNA signature that potentially predicts the therapeutic benefit of trastuzumab for HER2+ MBC patients and warrants future validation in prospective clinical trials. Resistance to therapy is a significant issue for patients with metastatic breast cancer (MBC). Here the authors analyze total miRNA from serum samples of 386 MBC patients before treatment with a follow up of 31 months and define a four miRNA signature that predicts the therapeutic benefit of trastuzumab.
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