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血和尿液循环瘤DNA甲基化档案用于非侵入性胰腺管道腺癌检测:仅在血中发现了重要的发现

Tomoaki Ito1,2, Takumi Iwasawa2,3, Shunsuke Sakuraba1

  • 1Department of Surgery, Juntendo University Shizuoka Hospital, Juntendo University School of Medicine, Shizuoka 410-2295, Japan.

International journal of molecular sciences
|June 13, 2025
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概括
此摘要是机器生成的。

血循环瘤DNA (ctDNA) 甲基化显示了早期发现胰腺癌的前途. 在这项研究中,尿液ctDNA甲基化信息较少,突出显示血是胰腺管腺癌的潜在非侵入性生物标志物.

关键词:
通过DNA甲基化.循环瘤DNA (ctDNA) 的发生.液体活检活检液体活检胰腺管道腺癌瘤全基因组二硫酸盐测序 (WGBS) 是一种全基因组的测序.

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科学领域:

  • 在瘤学瘤学.
  • 分子生物学分子生物学
  • 生物标志物发现发现

背景情况:

  • 胰腺管道腺癌 (PDAC) 是一种高度致命的癌症,预后不佳.
  • 由于缺乏可靠的,非侵入性的生物标志物,PDAC的早期检测受到阻碍.
  • 循环瘤DNA (ctDNA) 甲基化正在成为癌症检测的潜在来源.

研究的目的:

  • 评估血和尿液ctDNA甲基化概况作为潜在的PDAC检测的非侵入性生物标志物.
  • 评估ctDNA甲基化模式在区分PDAC患者与健康对照中的有用性.

主要方法:

  • 从血和尿液样本中分离的ctDNA上进行了全基因组双硫酸盐测序.
  • 从35名PDAC患者和10名非癌症对照获得了样本.
  • 差异甲基化分析和层次聚类被用来分析数据.

主要成果:

  • 血ctDNA甲基化概况显著区分了PDAC患者与对照者的差异,在基因间区域有显著差异.
  • 基于血ctDNA甲基化的等级分类准确地分组了PDAC患者.
  • 尿液ctDNA甲基化概况没有显示PDAC患者和对照人群之间的显著差异.

结论:

  • 血ctDNA甲基化模式代表了一种有前途的非侵入性生物标志物,用于早期检测胰腺管道腺癌.
  • 与血ctDNA相比,尿液ctDNA甲基化对PDAC检测效果似乎不那么好.
  • 建议在更大的队列中进行进一步验证,并探索机器学习算法,以提高诊断准确度.