职业与健康 ›› 2026, Vol. 42 ›› Issue (18): 2490-2495.

• 论著——实验·监测与检验 • 上一篇    下一篇

CASP1基因多态性及位点间交互作用与新疆地区矽肺易感性分析

寇久隆1,2, 许雪宇2, 李雪丹2,3, 李佳慧1,2, 杨倩2, 何平2()   

  1. 1 石河子大学新疆 石河子 832000
    2 新疆维吾尔自治区第三人民医院新疆 乌鲁木齐 830091
    3 新疆医科大学新疆 乌鲁木齐 830011
  • 收稿日期:2025-07-25 修回日期:2025-12-29 出版日期:2026-09-15 发布日期:2026-08-28
  • 通信作者: 何平
  • 作者简介:何平,E-mail:304230180@qq.com
    寇久隆,男,在读硕士研究生,研究方向为劳动卫生与环境卫生。
  • 基金资助:
    “天山英才”医药卫生高层次人才培养计划(TSYC202301A088)

Analysis of CASP1 gene polymorphisms and loci interaction with susceptibility to silicosis in Xinjiang

KOU Jiulong1,2, XU Xueyu2, LI Xuedan2,3, LI Jiahui1,2, YANG Qian2, HE Ping2()   

  1. 1 Shihezi UniversityShiheziXinjiang 832000, China
    2 The Third People's Hospital of Xinjiang Uygur Autonomous RegionUrumqiXinjiang 830091, China
    3 Xinjiang Medical UniversityUrumqiXinjiang, 830011, China
  • Received:2025-07-25 Revised:2025-12-29 Online:2026-09-15 Published:2026-08-28
  • Contact: HE Ping

摘要:

目的 分析半胱氨酸蛋白酶1(CASP1)基因多态性与新疆地区矽肺的遗传易感性,以及位点间交互作用与矽肺发病的相关性,为矽肺的发病及预防提供线索。方法 采用方便抽样,选取2020年1月—2024年12月在新疆某家省级职业病诊断机构进行职业性矽肺病诊断的劳动者为分析对象,共纳入84例职业性矽肺病患者为病例组,以70例接触矽尘作业而未患尘肺病的劳动者为对照组。选择CASP1基因的单核苷酸多态性位点rs2282659、rs530537、rs516095、rs1790203,采集血样后提取DNA进行基因分型,应用非条件Logistic回归模型对基因多态性与矽肺易感性的关联性进行分析。采用广义多因子降维(generalized multifactor dimensionality reduction,GMDR)分析位点间的交互作用与矽肺的相关性。结果 矽肺组rs2282659、rs530537次要等位基因频率低于接尘对照组(P<0.05)。在校正接尘工龄、吸烟和饮酒等混杂因素后,rs530537位点显性模型中,TC、CC基因型携带者罹患矽肺的风险低于TT基因型携带者(OR=0.461,95%CI:0.231~0.922,P<0.05);超显性模型下,TC基因型携带者罹患矽肺的风险低于TT、CC基因型携带者(OR=0.495,95%CI:0.245~0.999,P<0.05);加性模型下,随着C等位基因数量的增加矽肺患病风险逐渐降低(OR=0.541,95%CI:0.299~0.976,P<0.05),显性模型是最佳遗传模型。GMDR位点间交互分析发现rs2282659,rs530537,rs1790203三位点相互作用模型为最佳模型(P<0.05)。结论 CASP1基因rs530537和rs2282659与罹患矽肺的风险相关,且与rs1790203位点间存在交互作用,为进一步研究矽肺的发病风险提供了线索。

关键词: 矽肺, 半胱氨酸蛋白酶1, 基因多态性, 交互作用, 遗传模型

Abstract:

Objective To explore the genetic susceptibility of cysteine aspartate-specific protease-1(CASP1)gene polymorphisms to silicosis in Xinjiang,as well as the loci interaction of nucleic acid binding oligomeric in the pathogenesis of silicosis,and to provide insights into the pathogenesis and prevention of silicosis. Methods By convenient sampling,workers diagnosed with occupational silicosis in a provincial occupational disease diagnosis institution in Xinjiang from January 2020 to December 2024 were selected as the research subjects. A total of 84 patients with occupational silicosis were included as the case group,and 70 workers exposed to silica dust but without pneumoconiosis were included as the control group. The single nucleotide polymorphism loci rs2282659,rs530537,rs516095,and rs1790203 of the CASP1 gene were selected.After blood sample collection,DNA was extracted for genotyping. A non-conditional logistic regression model was applied to analyze the association between genetic polymorphisms and silicosis susceptibility,and generalized multi-factor dimensionality reduction method was used to analyze the correlation of the interaction between polymorphism loci and silicosis. Results The secondary allele frequencies of rs2282659 and rs530537 in the silicosis group were significantly lower than those in the dust-exposed control group(both P<0.05). After adjusting for confounding factors such as exposure duration,smoking and alcohol consumption,in the dominant model at rs530537,carriers of TC and CC genotypes had lower risk of developing silicosis compared to TT genotype carriers(OR=0.461,95%CI:0.231-0.922,P<0.05). Under the superdominant model,TC genotype carriers showed reduced risk than TT and CC carriers(OR=0.495,95%CI:0.245-0.999,P<0.05). In the additive model,the risk of silicosis gradually decreased with increasing C allele frequency(OR=0.541, 95%CI:0.299-0.976,P<0.05),confirming the dominant model as the optimal genetic model. Interactions between GMDR loci revealed that the interaction model involving rs2282659,rs530537,and rs1790203 was the most significant(P<0.05). Conclusion The CASP1 genes rs530537 and rs2282659 are associated with the risk of silicosis,and there is an interaction with rs1790203,which provides clues for further study of the risk of silicosis.

Key words: Silicosis, CASP1, Gene polymorphism, Interaction, Genetic model

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