【佳学基因检测】在新的全身治疗线之前、期间和之后循环转移性乳腺癌中的 miR-200 家族和 CTC
基因治疗肿瘤要多少钱—争论
与同行交流时发现《Int J Mol Sci》在. 2022 Aug 23;23(17):9535.发表了一篇题目为《在新的全身治疗线之前、期间和之后循环转移性乳腺癌中的 miR-200 家族和 CTC》肿瘤靶向药物治疗基因检测临床研究文章。该研究由Chiara Fischer, Andrey Turchinovich, Manuel Feisst, Fabian Riedel, Kathrin Haßdenteufel, Philipp Scharli, Andreas D Hartkopf, Sara Y Brucker, Laura Michel, Barbara Burwinkel, Andreas Schneeweiss, Markus Wallwiener, Thomas M Deutsch 等完成。促进了肿瘤的精准治疗与个性化用药的发展,进一步强调了基因信息检测与分析的重要性。
肿瘤靶向药物及精准治疗临床研究内容关键词:
四氯化碳,急救人员, MBC,循环微小RNA,循环肿瘤细胞,上皮间质转化,转移性乳腺癌, miR-200 家族, miR-200, microRNA-200 家族
肿瘤靶向治疗基因检测临床应用结果
细胞外循环 microRNA (miR)-200 调节上皮间质转化,因此在转移性级联反应中发挥重要作用,并已证明其自身是转移性乳腺癌 (MBC) 中一种有前途的预后和预测生物标志物。分析血浆 miR-200 家族的表达水平与全身治疗、循环肿瘤细胞 (CTC) 计数、无进展生存期 (PFS) 和总生存期 (总生存期) 的关系。在基线 (BL) 后评估了 47 名患者的 miR-200a、miR-200b、miR-200c、miR-141 和 miR-429 的表达以及 CTC 状态(CTC 阳性 ≥ 5 CTC/7.5 mL)。新的全身治疗线(1C)的第一个完整周期,以及疾病进展(PD)。与 BL 相比,miR-200a、miR-200b 和 miR-141 的表达在 1C 时降低。 PD 后,与 1C 相比,所有 miR-200 均上调。在所有时间点,CTC 阳性与 CTC 阴性患者的 miR-200 水平均升高。此外,升高的 miR-200s 表达和阳性 CTC 状态与 BL 和 1C 较差的 总生存期 相关。在 MBC 患者中,循环 miR-200 家族成员在一个新的全身治疗周期后减少,在 PD 期间升高,并指示 CTC 状态。值得注意的是,miR-200 水平升高和 CTC 计数升高与较差的 总生存期 和 PFS 相关。因此,两者都是优化 MBC 临床管理的有前途的生物标志物。急救人员; MBC;循环微小RNA;循环肿瘤细胞;上皮间质转化;转移性乳腺癌; miR-200 家族; miR-200; microRNA-200 家族。
肿瘤发生与复发转移国际数据库描述:
The extracellular circulating microRNA (miR)-200 regulates epithelial-mesenchymal transition and, thus, plays an essential role in the metastatic cascade and has shown itself to be a promising prognostic and predictive biomarker in metastatic breast cancer (MBC). Expression levels of the plasma miR-200 family were analyzed in relationship to systemic treatment, circulating tumor cells (CTC) count, progression-free survival (PFS), and overall survival (OS). Expression of miR-200a, miR-200b, miR-200c, miR-141, and miR-429, and CTC status (CTC-positive ≥ 5 CTC/7.5 mL) was assessed in 47 patients at baseline (BL), after the first completed cycle of a new line of systemic therapy (1C), and upon the progression of disease (PD). MiR-200a, miR-200b, and miR-141 expression was reduced at 1C compared to BL. Upon PD, all miR-200s were upregulated compared to 1C. At all timepoints, the levels of miR-200s were elevated in CTC-positive versus CTC-negative patients. Further, heightened miR-200s expression and positive CTC status were associated with poorer OS at BL and 1C. In MBC patients, circulating miR-200 family members decreased after one cycle of a new line of systemic therapy, were elevated during PD, and were indicative of CTC status. Notably, increased levels of miR-200s and elevated CTC count correlated with poorer OS and PFS. As such, both are promising biomarkers for optimizing the clinical management of MBC.Keywords: CTC; EMT; MBC; circulating microRNA; circulating tumor cells; epithelial-mesenchymal transition; metastatic breast cancer; miR-200 family; miR-200s; microRNA-200 family.
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