晚期肺腺癌瘤内趋化因子CCR1、CXCR6和CXCL9对免疫治疗的预测及预后作用分析
Prediction and Prognosis Analysis for Immunotherapy of Intra-tumoral Chemokines CCR1,CXCR6,and CXCL9 in Advanced Lung Adenocarcinoma
钟思敏 1张东东 2李扬秋 3吴一龙 4刘思阳 5金真伊6
作者信息
- 1. 暨南大学生命科学技术学院,广州 510632
- 2. 暨南大学第一附属医院胸外科,广州 510632
- 3. 暨南大学基础医学与公共卫生学院血液学研究所,再生医学教育部重点实验室,广州 510632
- 4. 广东省肺癌研究所,南方医科大学附属广东省人民医院(广东省医学科学院),广州 510080
- 5. 暨南大学基础医学与公共卫生学院血液学研究所,再生医学教育部重点实验室,广州 510632;暨南大学第一附属医院血液科,广州 510632;广东省肺癌研究所,南方医科大学附属广东省人民医院(广东省医学科学院),广州 510080
- 6. 暨南大学基础医学与公共卫生学院病理学系,广州 510632
- 折叠
摘要
目的 构建能够预测晚期肺腺癌(lung adenocarcinoma,LUAD)患者免疫检查点阻断(immune checkpoint blockade,ICB)治疗疗效与预后的趋化因子模型.方法 从既往研究数据中回顾性收集确诊为晚期LUAD且经过ICB治疗的 42例患者(训练队列),取得其ICB治疗前肿瘤组织转录组测序数据,通过生物信息学方法,筛选出显著影响ICB治疗疗效与患者生存预后的趋化因子,通过无进展生存期(progression-free disease,PFS)评价疗效,通过总生存期(overall survival,OS)评价患者的预后.从高通量基因表达数据库(Gene Expression Omnibus,GEO)中的数据集(GSE 135222)下载 25例非小细胞肺癌(non-small cell lung cancer,NSCLC)转录组测序数据和相关的生存数据,将其作为验证队列.结果 通过单因素Cox回归分析,筛选出 9个与晚期LUAD患者良好OS显著相关的趋化因子,其中CCR1、CXCR6和CXCL9高表达的患者明显具有更长的OS.基于这 3个趋化因子的表达量构建风险模型,生存分析结果表明风险分数与患者的PFS和OS呈负相关,即低风险(risk score≤-1.33)的晚期LUAD患者在ICB治疗中明显获益更多.低风险组中位PFS为 19.7个月对比高风险组(risk score＞-1.33)2.9个月[95%可信区间(confidence interval,CI)为 0.12～0.51,P＜0.001].中位OS低风险组未达到对比高风险组6.0个月(95%CI 0.08～0.38,P＜0.001).GEO数据集验证了该结果,中位PFS低风险(risk score≤-1.85)对比高风险(risk score＞-1.85)为 2.7个月对比 1.2个月(95%CI 0.12～0.93,P=0.009).结论 CCR1、CXCR6和CXCL9高表达表明晚期LUAD患者疾病进展的风险较低,与患者良好的PFS和OS相关,可能为晚期LUAD患者的ICB辅助治疗提供新的方向.
Abstract
Objective Constructing a chemokine model to predict immune checkpoint blockade(ICB)efficacy and prognosis in advanced lung adenocarcinoma(LUAD).Methods A total of 42 advanced LUAD patients(training cohort)who underwent ICB were retrospectively collected from the data of the previous study.We obtained transcriptome sequencing data from tumor tissues before ICB treatment.Screening for chemokines that significantly affect the efficacy of ICB treatment and the survival prognosis of patients with advanced LUAD by bioinformatics methods,and the efficacy was evaluated by progression-free disease(PFS),and the prognosis was evaluated by overall survival(OS).Transcriptome sequencing and survival-related data of 25 cases of non-small cell lung cancer(NSCLC)were downloaded from the Gene Expression Omnibus(GEO)database dataset(GSE 135222)and identified as a validation cohort.Results Through univariate Cox regression analysis,nine chemokines significantly associated with favorable OS in advanced LUAD patients were screened,among which patients with high expression of CCR1,CXCR6,and CXCL9 had significantly longer OS.A risk model based on the expression of these three chemokines could be constructed.Survival analysis results show that risk score was negatively correlated with patients'PFS and OS,which means advanced LUAD patients with low risk(risk score≤-1.33)could benefit more from ICB treatment.The median PFS in the low-risk group was 19.7 months,whereas in the high-risk group(risk score＞-1.33)was 2.9 months[95%confidence interval(CI)0.12～0.51,P＜0.001],and the median OS in the high-risk group was 6.0 months,while it was not reached in the low-risk group(95%CI 0.08～0.38,P＜0.001).The results from the GEO dataset confirmed the association between the risk score and PFS.Patients were classified as low-risk based on the risk score(risk score≤-1.85)were associated with a longer median PFS of 2.7 months,whereas the high-risk group(risk score＞-1.85)had a shorter median PFS of 1.2 months(95%CI 0.12～0.93,P=0.009).Conclusions The high expression of CCR1,CXCR6,and CXCL9 indicates that patients with advanced LUAD have a low risk of disease progression,which is associated with favorable PFS and OS,and may provide a novel perspective for the adjuvant setting of ICB therapy for advanced LUAD patients.
关键词
CCR1/CXCR6/CXCL9/肺腺癌/免疫检查点阻断治疗Key words
CCR1/CXCR6/CXCL9/lung adenocarcinoma/immune checkpoint blockade therapy引用本文复制引用
基金项目
国家自然科学基金(82202997)
广东省自然科学基金(2023A1515030271)
广州市科技计划(202201010164)
中国博士后科学基金面上项目(第七十批)(2021M701422)
出版年
2024
NETL
NSTL
万方数据