Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China.
Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, P.R. China.
Oncol Res. 2019 May 7;27(5):575-582. doi: 10.3727/096504018X15344979253618. Epub 2018 Aug 21.
rearrangement has been proven as an oncogenic driver in patients with lung cancer. However, the prevalence, clinical characteristics, molecular features, and therapeutic options in -rearranged patients remain unclear, especially in Chinese lung cancer patients. We retrospectively collected 6,125 Chinese lung cancer patients who have been profiled using next-generation sequencing (NGS). The clinical demographics and molecular features of rearrangement-positive patients were analyzed. rearrangements were identified in 84 patients with a proportion of 1.4% in our cohort. The median age at diagnosis was 58 years, and it mainly occurred in females with adenocarcinoma histology. was the most frequent fusion type and accounted for 53.8% (57/106) of all fusions identified, with K15-R12 as the most frequent variant (71.9%). Among 47 patients profiled with larger panels, 72.3% (34/47) harbored concurrent alterations. ranked as the most common concurrent alteration, and concomitant oncogenic alterations were identified in seven patients. Moreover, an adenocarcinoma patient harboring concurrent fusion and L858R responded to combinatorial treatment of cabozantinib and osimertinib, with a progression-free survival of 5 months. Our study improved knowledge of clinical characteristics and molecular features of -rearranged lung cancers in China. It might be helpful to guide clinicians for more effective personalized diagnostic and therapeutic approaches.
重排已被证实是肺癌患者的致癌驱动因素。然而,在 - 重排患者中,其流行率、临床特征、分子特征和治疗选择仍不清楚,尤其是在中国的肺癌患者中。我们回顾性收集了 6125 名使用下一代测序(NGS)进行分析的中国肺癌患者。分析了 重排阳性患者的临床人口统计学和分子特征。在我们的队列中,84 名患者存在 重排,占比为 1.4%。诊断时的中位年龄为 58 岁,主要发生在女性腺癌患者中。 是最常见的融合类型,占所有鉴定出的 融合的 53.8%(57/106),最常见的变异型是 K15-R12(71.9%)。在 47 名接受更大面板检测的患者中,72.3%(34/47)存在并发改变。 作为最常见的并发改变,有 7 名患者存在 致癌改变。此外,一名患有腺癌的患者同时存在 融合和 L858R,对卡博替尼和奥希替尼联合治疗有反应,无进展生存期为 5 个月。我们的研究提高了对中国 重排肺癌患者临床特征和分子特征的认识。这可能有助于指导临床医生采取更有效的个性化诊断和治疗方法。