实用医学杂志 ›› 2021, Vol. 37 ›› Issue (10): 1301-1306.doi: 10.3969/j.issn.1006⁃5725.2021.10.014

• 临床研究 • 上一篇    下一篇

XPC Ⅲ基因遗传变异对接受奥沙利铂辅助化疗方案的期结直肠癌患者的神经毒性及预后的影响

 郑凯, 张天可, 付文政    

  1. 天津市人民医院肛肠科(天津 300191

  • 出版日期:2021-05-25 发布日期:2021-05-25
  • 通讯作者: 付文政 E⁃mail:85833587@qq.com
  • 基金资助:
    天津市卫计委科技基金(编号:No. 2014KZ053)

Influence of XPC genetic variation on prognosis and neurotoxicity of stage Ⅲ patients with CRC receiving oxaliplatin ⁃ based adjuvant chemotherapy 

 ZHENG Kai,ZHANG Tianke,FU Wenzheng.    

  1. Department of Anus and Intestine,Tianjin People′s Hospital,Tianjin 300191China

  • Online:2021-05-25 Published:2021-05-25
  • Contact: FU Wenzheng E⁃mail:85833587@qq.com

摘要:

目的 本研究探讨着色性干皮病基因组 C(xeroderma pigmentosum group C,XPC)基因的遗传变异对接受奥沙利铂为基础辅助化疗的Ⅲ期结直肠癌(colorectal cancer,CRC)患者的预后及安全性的影响。方法 研究纳入 186 例接受手术切除治疗且术后接受奥沙利铂方案辅助化疗的Ⅲ CRC 患者。此外,收集患者的外周血生物学标本进行 XPC 基因遗传变异分析。XPC 基因多态性和无疾病生存期的关联 分析采用 Kaplan⁃Meier 方法进行,通过卡方检验探讨基因型和不良反应的相关性。结果 186 例患者的 中位无疾病生存期(disease⁃free survival,DFS)为 4.3 年,中位总生存期(overall survival,OS)为 5.5 年。遗传 变异分析结果提示位于 XPC 基因编码区的 rs2228001 位点与预后及安全性相关。预后分析结果表明 TT TG/GG 基因型患者的中位 DFS 分别为 3.8 年和 5.0 年,差异有统计学意义(P = 0.012)。两种基因型患者 的中位 OS 分别为 5.0 年和 5.7 年,差异有统计学意义(P = 0.021)。rs2228001 位点基因型和不良反应分析 结果表明 TG/GG 基因型患者相对于 TT 基因型患者伴随了相对较高的神经毒性发生率(72.9% vs. 55.4% P = 0.014)。结论 XPC 基因 rs2228001 位点可以作为预测接受奥沙利铂为基础辅助化疗的Ⅲ CRC 患者 预后及神经毒性的生物标志物。

关键词:

结直肠癌, 着色性干皮病基因组C, 遗传变异, 预后, 安全性, 生物标志物

Abstract:

Objective To explore the influence of xeroderma pigmentosum group C(XPC)genetic variation on the prognosis and safety of stage Ⅲ patients with colorectal cancer(CRC)receiving oxaliplatin⁃based adjuvant chemotherapy. Methods A total of 186 patients with CRC who were treated with surgical resection and oxaliplatin⁃ based adjuvant chemotherapy were included in this study. Peripheral blood specimens of the patients were collected for genetic variation analysis of XPC gene. The univariate analysis between XPC genetic variation and prognosis was performed by Kaplan⁃Meier survival analysis. The correlation analysis between genotype and adverse reactions was analyzed using chi⁃square test. Results The median disease⁃free survival(DFS)and overall survival(OS of the 186 patients with CRC was 4.3 years and 5.5 years,respectively. Rs2228001 was of clinical significance with prognosis and safety. Prognostic analysis demonstrated that the median DFS of patients with TT genotype and TG/GG genotype was 3.8 and 5.0 years respectively ,which was statistically significant(P = 0.012). Fur⁃ thermore,the median OS of the two genotypes were 5.0 and 5.7 years respectively,which was marginal statistical significance(P = 0.021). The association analysis between rs2228001 genotype and adverse reaction suggested that patients with TG/GG genotype were associated with a relatively higher incidence of neurotoxicity than that with TT genotype(72.9% vs. 55.4% ,P = 0.014). Conclusion XCP gene rs2228001 polymorphism could be used as a biomarker for prognosis and neurotoxicity evaluation of patients with CRC who received oxaliplatin⁃based adjuvant chemotherapy. 

Key words:

colorectal cancer, xeroderma pigmentosum group C, genetic variation, prognosis, safety, biomarker