超越ALK融合阳性:结构复杂性作为一线ALK-TKI治疗中的预后指标
Dujiang Liu1,2, Kaibo Ding3, Linjing Zhou1
1Department of Medical Thoracic Oncology, Institute of Basic Medicine and Cancer (IBMC), Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, No.1 East Banshan Road, Hangzhou, 310022, Zhejiang, China.
概括
在非小细胞肺癌 (NSCLC) 中的无细胞淋巴瘤激酶 (ALK) 转位表明与单独的ALK融合相比,预后较差. 这一发现独立于TP53共同突变,突出了ALK阳性NSCLC的新疗法考虑.
科学领域:
- 在瘤学瘤学.
- 基因组学就是基因组学.
- 胸部外科手术 胸部外科手术
背景情况:
- 氨酸激酶抑制剂 (TKIs) 已改善了阿纳普拉斯性淋巴瘤激酶 (ALK) 重组的非小细胞肺癌 (NSCLC) 的结果.
- 新出现的ALK重组亚型需要进一步研究TKI疗效.
- 基因组测序的进步促进了对ALK重组的详细分析.
研究的目的:
- 根据ALK重组亚型,研究一线ALK-TKIs在NSCLC患者的治疗结果.
- 确定与NSCLC中不同ALK重组模式相关的预后因素.
主要方法:
- 通过下一代测序 (NGS) 识别的ALK重组的118名NSCLC患者的回顾性分析.
- 在接受一线ALK-TKIs的89名患者中评估治疗结果,按ALK重组亚型分层.
- 在非互惠/互惠ALK转位和单一3'-ALK融合的患者中,比较无进展生存 (PFS) 和总生存 (OS).
主要成果:
- 在30.5%的患者中发现了非互惠/互惠的ALK转位,在61.9%的患者中发现了单独的EML4-ALK融合,在7.6%的患者中发现了单独的非EML4-ALK融合.
- 与单独的3'-ALK融合 (67.4%,31.1个月) 相比,非互惠/互惠转位患者 (32.6%) 的PFS中位数显著更短 (15.6个月),而非单独的3'-ALK融合 (67.4%,31.1个月).
- 两组之间没有观察到平均整体存活时间的显著差异;TP53突变是常见的同时发生的变化,没有显著的频率差异.
结论:
- 非互惠/互惠的ALK转位是ALK阳性NSCLC的一个独立的不良预后因素.
- 与这些转位相关的较差预后与TP53共同突变没有直接联系.
- 这些发现强调了为个性化NSCLC治疗策略特征ALK重组亚型的重要性.
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