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Similarities in the General Chemical Composition of Colon Cancer Cells and Their Microvesicles Investigated by Spectroscopic Methods-Potential Clinical Relevance

机译:通过光谱法研究结肠癌细胞的一般化学成分的相似性 - 通过光谱法研究 - 潜在的临床相关性

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摘要

Colon cancer constitutes 33% of all cancer cases in humans and the majority of patients with metastatic colon cancer still have poor prognosis. An important role in cancer development is the communication between cancer and normal cells. This may occur, among others, through extracellular vesicles (including microvesicles) (MVs), which are being released by both types of cells. MVs may regulate a diverse range of biological processes and are considered as useful cancer biomarkers. Herein, we show that similarity in the general chemical composition between colon cancer cells and their corresponding tumor-derived microvesicles (TMVs) does exist. These results have been confirmed by spectroscopic methods for four colon cancer cell lines: HCT116, LoVo, SW480, and SW620 differing in their aggressiveness/metastatic potential. Our results show that Raman and Fourier Transform InfraRed (FTIR) analysis of the cell lines and their corresponding TMVs did not differ significantly in the characterization of their chemical composition. However, hierarchical cluster analysis of the data obtained by both of the methods revealed that only Raman spectroscopy provides results that are in line with the molecular classification of colon cancer, thus having potential clinical relevance.
机译:结肠癌构成33%的人类癌症病例的33%,大多数转移性结肠癌患者的预后仍然存在差。癌症发展中的重要作用是癌症和正常细胞之间的沟通。在其外,可以通过细胞外囊泡(包括微泡)(MV),其被两种类型的细胞释放。 MV可以调节各种各样的生物过程,被认为是有用的癌症生物标志物。在此,我们表明,存在结肠癌细胞与其相应的肿瘤衍生的微泡(TMV)之间的一般化学组成中的相似性。这些结果已经通过针对四种结肠癌细胞系的光谱方法证实:HCT116,LOVO,SW480和SW620在其侵略性/转移性潜力的不同之处。我们的结果表明,在其化学成分的表征中,细胞系的拉曼和傅立叶变换红外(FTIR)分析并没有显着差异。然而,通过两种方法获得的数据的分层聚类分析显示只有拉曼光谱提供符合结肠癌的分子分类的结果,因此具有潜在的临床相关性。

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