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中华肺部疾病杂志(电子版) ›› 2024, Vol. 17 ›› Issue (06) : 936 -941. doi: 10.3877/cma.j.issn.1674-6902.2024.06.015

论著

SCARA5 甲基化对可切除非小细胞肺癌辅助化疗的预后意义
焦咪1, 郭亚焕1, 锻炼1, 方芳2,()   
  1. 1.710061 西安,陕西省肿瘤医院肿瘤内六科
    2.710061 西安,西安市胸科医院呼吸与危重症医学科
  • 收稿日期:2024-09-13 出版日期:2024-12-25
  • 通信作者: 方芳
  • 基金资助:
    陕西省自然科学基础研究计划(2020JQ-951)

Prognostic significance of SCARA5 methylation in adjuvant chemotherapy for resectable non-small cell lung cancer

Mi Jiao1, Yahuan Guo1, Lian Duan1, Fang Fang2,()   

  1. 1.Department of Oncology, Shaanxi Provincial Tumor Hospital, Xi'an 710061, China
    2.Resipratory and Critical Care Medicine, Xi'an Chest Hospital, Xi'an 710061, China
  • Received:2024-09-13 Published:2024-12-25
  • Corresponding author: Fang Fang
引用本文:

焦咪, 郭亚焕, 锻炼, 方芳. SCARA5 甲基化对可切除非小细胞肺癌辅助化疗的预后意义[J/OL]. 中华肺部疾病杂志(电子版), 2024, 17(06): 936-941.

Mi Jiao, Yahuan Guo, Lian Duan, Fang Fang. Prognostic significance of SCARA5 methylation in adjuvant chemotherapy for resectable non-small cell lung cancer[J/OL]. Chinese Journal of Lung Diseases(Electronic Edition), 2024, 17(06): 936-941.

目的

分析A 类清道夫受体5 型(scavenger receptor class A member 5,SCARA5)甲基化对可切除非小细胞肺癌(non-small cell lung cancer,NSCLC)辅助化疗(adjuvant chemotherapy,ACT)的预后意义。

方法

选择2018 年5 月至2023 年1 月我院收治的69 例ⅠA~ⅢA 期NSCLC 患者为对象,亚硫酸氢盐靶向测序和实时定量甲基化特异性聚合酶链式反应(real-time quantitative methylation-specific polymerase chain reaction,RQ-MSP)检测SCARA5 甲基化水平;实时荧光定量聚合酶链式反应(real-time fluorescence quantitative polymerase chain reaction,qRT-PCR)检测SCARA5 mRNA 水平,采用Spearman 分析两者相关性,Kaplan-Meier 生存曲线和COX 风险比例模型分析SCARA5 甲基化水平对预后影响。

结果

NSCLC 肿瘤组织SCARA5 甲基化水平9.32(7.59,10.80)高于癌旁组织SCARA5 甲基化水平7.45(6.36,8.55);肿瘤组织SCARA5 mRNA,3.22(2.86,4.14)低于癌旁组织SCARA5 mRNA,4.01(3.53,4.46)(P<0.05)。 SCARA5 高甲基化者(中位值≥9.32)6 个月、9 个月、12 个月ACT 相对剂量强度(relative dose intensity,RDI) ≥70%占比20(57.14%)、16(45.71%)、13(19.12%) 低于SCARA5 低甲基化者28(82.35%)、28(82.35%)、24(35.29%)(P<0.05)。 复发30 例(43.48%),中位无复发生存期21.00 个月;中位随访28.00 个月,死亡28 例(40.58%)。 COD 分析显示,SCARA5 甲基化与NSCLC 术后ACT 的OS[HR:3.503(95%CI:1.327 ~9.248)]和DFS[HR:2.393(95%CI:1.075 ~5.329)]相关。 肿瘤组织中SCARA5 甲基化水平与SCARA5mRNA 水平呈负相关(Rho=-0.254,P=0.035)。 SCARA5 高甲基化DFS 40.00%低于SCARA5 低甲基化DFS 73.53%,SCARA5 高甲基化OS 37.14%低于SCARA5 低甲基化OS 82.35%(P<0.05)。

结论

可切除NSCLC 经ACT 后SCARA5 高甲基化预后差,SCARA5 可为NSCLC 预后参考。

Objective

To analyze prognostic significance of scavenger receptor class A member 5(SCARA5) methylation in adjuvant chemotherapy (ACT) for non-small cell lung cancer (NSCLC).

Methods

All of 69 patients with stage ⅠA~ⅢA NSCLC admitted to our hospital from May 2018 to January 2023 were selected as subjects.The methylation level of SCARA5 was detected by targeted bisulfite sequencing and realtime quantitative methylation-specific polymerase chain reaction ( RQ-MSP ).Real-time fluorescence quantitative polymerase chain reaction (qRT-PCR) was used to detect SCARA5 mRNA levels and Spearman was used to analyze the correlation. Kaplan-Meier survival curve and COX risk proportional model were used to analyze the effect of SCARA5 methylation on prognosis.

Results

The methylation level of SCARA5 in NSCLC tumor tissue was 9.32(7.59,10.80) and 7.45 (6.36,8.55),respectively.SCARA5 mRNA in tumor tissue 3.22(2.86,4.14) was lower than that in paracancer tissue4.01 (3.53,4.46) (P <0.05).SCARA5 hypermethylation (median ≥9.32) at 6 months,9 months,12 months relative dose intensity (relative dose intensity,RDI≥70% in 20 (57.14%),16 (45.71%),13 (19.12%) were lower than those in SCARA5 hypomethyl group 28(82.35%),28(82.35%),24(35.29%) (P<0.05).There were 30 cases (43.48%) with recurrence,and the median relapse-free survival was 21.00months.The follow-up was 28.00months,and 28 cases (40.58%) died.COD analysis showed that SCARA5 methylation was correlated with OS[HR:3.503(95%CI:1.327-9.248)] and DFS[HR:2.393(95%CI:1.075-5.329)] of ACT after NSCLC.The methylation level of SCARA5 in tumor tissue was negatively correlated with the mrna level of ScarA5 (Rho=-0.254, P=0.035).SCARA5 hypermethylated DFS 40.00% was lower than SCARA5 hypomethylated DFS 73.53%,and SCARA5 hypermethylated OS 37.14% was lower than SCARA5 hypomethylated OS 82.35%(P <0.05).

Conclusion

Hypermethylation of SCARA5 in resectable NSCLC after ACT has a poor prognosis,and SCARA5 can be a prognostic indicator of NSCLC.

表1 SCARA5 mRNA 甲基化和未甲基化引物
图1 NSCLC 肿瘤组织中SCARA5 甲基化水平与SCARA5 mRNA 的相关性
表2 NSCLC 患者SCARA5 甲基化与临床特征的关系[M50P25P75),( ±s),n(%)]
表3 NSCLC 患者DFS 的COX 模型结果
表4 NSCLC 患者OS 的COX 及Kaplan-Meier 结果
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