Sieminska Julia, Miniewska Katarzyna, Mroz Robert, Sierko Ewa, Naumnik Wojciech, Kisluk Joanna, Michalska-Falkowska Anna, Reszec Joanna, Kozlowski Miroslaw, Nowicki Lukasz, Moniuszko Marcin, Kretowski Adam, Niklinski Jacek, Ciborowski Michal, Godzien Joanna
Metabolomics Laboratory, Clinical Research Centre, Medical University of Bialystok, Bialystok, Poland.
2nd Department of Lung Diseases and Tuberculosis, Medical University of Bialystok, Bialystok, Poland.
Front Mol Biosci. 2024 Apr 25;11:1379631. doi: 10.3389/fmolb.2024.1379631. eCollection 2024.
Discrimination between adenocarcinoma (ADC) and squamous cell carcinoma (SCC) subtypes in non-small cell lung cancer (NSCLC) patients is a significant challenge in oncology. Lipidomics analysis provides a promising approach for this differentiation. In an accompanying paper, we explored oxPCs levels in a cohort of 200 NSCLC patients. In this research, we utilized liquid chromatography coupled with mass spectrometry (LC-MS) to analyze the lipidomics profile of matching tissue and plasma samples from 25 NSCLC patients, comprising 11 ADC and 14 SCC cases. This study builds upon our previous findings, which highlighted the elevation of oxidised phosphatidylcholines (oxPCs) in NSCLC patients. We identified eight lipid biomarkers that effectively differentiate between ADC and SCC subtypes using an untargeted approach. Notably, we observed a significant increase in plasma LPA 20:4, LPA 18:1, and LPA 18:2 levels in the ADC group compared to the SCC group. Conversely, tumour PC 16:0/18:2, PC 16:0/4:0; CHO, and plasma PC 16:0/18:2; OH, PC 18:0/20:4; OH, PC 16:0/20:4; OOH levels were significantly higher in the ADC group. Our study is the first to report that plasma LPA levels can distinguish between ADC and SCC patients in NSCLC, suggesting a potential role for LPAs in NSCLC subtyping. This finding warrants further investigation into the mechanisms underlying these differences and their clinical implications.
在非小细胞肺癌(NSCLC)患者中鉴别腺癌(ADC)和鳞状细胞癌(SCC)亚型是肿瘤学中的一项重大挑战。脂质组学分析为这种鉴别提供了一种有前景的方法。在一篇配套论文中,我们探究了200例NSCLC患者队列中的氧化磷脂酰胆碱(oxPCs)水平。在本研究中,我们利用液相色谱-质谱联用(LC-MS)分析了25例NSCLC患者匹配的组织和血浆样本的脂质组学谱,其中包括11例ADC和14例SCC病例。本研究基于我们之前的发现,即NSCLC患者中氧化磷脂酰胆碱(oxPCs)升高。我们采用非靶向方法鉴定出8种脂质生物标志物,可有效区分ADC和SCC亚型。值得注意的是,我们观察到与SCC组相比,ADC组血浆中溶血磷脂酸(LPA)20:4、LPA 18:1和LPA 18:2水平显著升高。相反,ADC组肿瘤中磷脂酰胆碱(PC)16:0/18:2、PC 16:0/4:0;胆固醇(CHO),以及血浆中PC 16:0/18:2;羟基化(OH)、PC 18:0/20:4;OH、PC 16:0/20:4;过氧化(OOH)水平显著更高。我们的研究首次报道血浆LPA水平可区分NSCLC患者中的ADC和SCC,提示LPA在NSCLC亚型分类中可能发挥作用。这一发现值得进一步研究这些差异背后的机制及其临床意义。