通过使用拉曼光谱学进行循环细胞无DNA分析来进行无标签的人类疾病特征化
Vassilis M Papadakis1,2,3, Christina Cheimonidi1,3, Maria Panagopoulou3,4
1Institute of Molecular Biology and Biotechnology, Foundation for Research and Technology, 70013 Heraklion, Greece.
International journal of molecular sciences
|August 12, 2023
概括
拉曼光谱揭示了在各种健康和疾病状态下循环无细胞DNA (ccfDNA) 的独特生物分子概况. 这项技术为液体活检诊断提供了一种新的方法,可以区分乳腺癌和糖尿病等疾病.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 频谱学是一种光谱学.
背景情况:
- 循环无细胞DNA (ccfDNA) 是精密医学中液体活检的关键生物标志物.
- 了解ccfDNA的结构和生物学对于推进诊断应用至关重要.
研究的目的:
- 用拉曼光谱学研究人类ccfDNA的生物分子概况.
- 建立来自各种健康和疾病条件的ccfDNA的参考光谱.
- 探索拉曼光谱作为液体活检的新工具.
主要方法:
- 拉曼光谱法用于分析ccfDNA样本.
- 针对健康个体 (男性和女性) 的ccfDNA建立了参考光谱.
- 分析了患有癌症 (接受新辅助疗法) 和糖尿病 (包括糖尿病前期) 的患者的ccfDNA.
主要成果:
- 在接受新辅助治疗的乳腺癌患者的ccfDNA中观察到明显的拉曼光谱模式.
- 在健康,糖尿病前和糖尿病男性的ccfDNA中发现了生物分子指纹的差异.
- 来自细胞系的ccfDNA反映了它们相应的基因组DNA (gDNA) 的光谱特征.
结论:
- 拉曼光谱学为ccfDNA的生物分子组成提供了宝贵的见解.
- 这项研究首次探讨了用于ccfDNA分析的拉曼光谱.
- 拉曼光谱显示出作为液体活检诊断的新方法的前景.
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