实用医学杂志 ›› 2025, Vol. 41 ›› Issue (11): 1742-1750.doi: 10.3969/j.issn.1006-5725.2025.11.020

• 新技术新方法 • 上一篇    

结直肠癌患者的血清脂质组学特点及其诊断价值

杨潇1,王涛2,王伟2,彭耀辉2,陈妍2,曾海平2,杨宝1()   

  1. 1.湖北民族大学风湿性疾病发生与干预湖北省重点实验室 (湖北 恩施 445000 )
    2.广州中医药大学第一附属医院 (广东 广州 510405 )
  • 收稿日期:2025-03-05 出版日期:2025-06-10 发布日期:2025-06-19
  • 通讯作者: 杨宝 E-mail:ybsept@hbmzu.edu.cn
  • 基金资助:
    国家自然科学基金青年项目(82205109);湖北民族大学2024年研究生科研创新项目(MYK2024087);湖北民族大学风湿性疾病发生与干预湖北省重点实验室项目(PT022402);广州市科技局基础与应用基础研究项目(2025A04J3690);广州中医药大学第一附属医院中青年骨干培育项目(09005650055)

Lipidomic profile of serum in colorectal cancer patients and its diagnostic significance

Xiao YANG1,Tao WANG2,Wei WANG2,Yaohui PENG2,Yan CHEN2,Haiping ZENG2,Bao YANG1()   

  1. *.Hubei Provincial Key Laboratory of Occurrence and Intervention of Rheumatic Diseases,Hubei Minzu University,Enshi 445000,Hubei,China
  • Received:2025-03-05 Online:2025-06-10 Published:2025-06-19
  • Contact: Bao YANG E-mail:ybsept@hbmzu.edu.cn

摘要:

目的 探讨结直肠癌患者的血清脂质代谢特点及其诊断价值。 方法 采用超高效液相色谱-飞行时间质谱技术结合主成分分析(PCA分析)、正交偏最小二乘判别分析(OPLS-DA分析)对57例结直肠癌患者和54例健康志愿者的血清样本进行脂质组学分析。以P < 0.05,VIP值 > 1,差异倍数< 0.67或> 1.5为标准筛选差异脂质。对差异脂质进行受试者工作特征曲线(ROC)分析,筛选出具有良好诊断价值的差异脂质作为生物标志物。 结果 共筛选出5类、66种差异脂质,其中磷脂酰胆碱(PC)和甘油三酯(TG)占比高达59.09%,KEGG通路富集主要涉及甘油磷脂代谢及甘油酯代谢途径。ROC分析筛选Sphinganine、MG(19∶0)、LysoPC(18∶2)、PA(42∶6)、PC(36∶5)、PC(36∶4)、PC(38∶6)、PC(40∶8)的曲线下面积大于0.85。 结论 通过UPLC-Q/TOF-MS技术并运用改良的Bligh-Dyer法高效富集血清中的脂质类代谢物,能较为系统地分析CRC患者的脂质代谢轮廓。筛选出的Sphinganine、MG(19∶0)、LysoPC(18∶2)、PA(42∶6)、PC(36∶5)、PC(36∶4)、PC(38∶6)、PC(40∶8)等8种脂质可以为区分健康志愿者和结直肠癌患者提供新的视角和参数。

关键词: 结直肠癌, 超高效液相色谱-飞行时间质谱, 脂质组学, 早期筛查, 生物标志物

Abstract:

Objective This study examines serum lipid metabolism characteristics in colorectal cancer patients and its diagnostic potential. Methods Serum samples from 57 colorectal cancer patients and 54 healthy controls underwent lipidomic analysis using ultra-high performance liquid chromatography-time-of-flight mass spectrometry, combined with principal component analysis (PCA) and orthogonal partial least squares discriminant analysis (OPLS-DA) . Differential lipids were identified based on criteria of P< 0.05, VIP > 1, and fold change < 0.67 or > 1.5. These lipids were further evaluated using receiver operating characteristic (ROC) analysis to identify biomarkers with strong diagnostic value. Results Five classes and 66 differential lipids were identified, with phosphatidylcholine (PC) and triglyceride (TG) comprising 59.09%. KEGG pathway enrichment indicated involvement in glycerophospholipid and glycerol ester metabolism pathways. ROC analysis identified Sphinganine, MG(19∶0), LysoPC(18∶2), PA(42∶6), PC(36∶5), PC(36∶4), PC(38∶6), and PC(40∶8) as having areas under the curve greater than 0.85. Conclusion The lipid metabolic profile of colorectal cancer (CRC) patients can be systematically analyzed through the efficient enrichment of lipid metabolites in serum using the UPLC-Q/TOF-MS technique, in conjunction with a modified Bligh-Dyer method. The identification of eight specific lipids including Sphinganine, MG(19∶0), LysoPC(18∶2), PA(42∶6), PC(36∶5), PC(36∶4), PC(38∶6), and PC(40∶8) offer novel insights and parameters for differentiating between healthy individuals and those diagnosed with colorectal cancer.

Key words: colorectal cancer, ultra performance liquid chromatography-time of flight mass spectrometry, lipidomics, early screening, biomarkers

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