肿瘤细胞的DNA会从血液中分离脱落而成“循环中的游离DNA”，而它可被用于识别导致不同类型的癌症的EGFR基因的突变状况。
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Experts believe the findings could aid future research by overcoming the difficulty of accessing some tumour samples.
The researchers analysed blood samples from patients with advanced non-small-cell lung cancer and looked for ‘circulating free DNA’ – bits of DNA shed from tumour cells that can be isolated from the blood.
They found that the tumour DNA present in blood samples could be used to identify different types of tumour-causing genetic faults in a gene called EGFR.
Blood samples could offer an alternative to tumour biopsies in lung cancer patients, according to European researchers.
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论文链接: EGFR Mutations in Non–Small-Cell Lung Cancer
也可以看一看这个视频解释:
http://cancergrace.org/lung/2014/12/22/top_lung_cancer_highlight_2014_liquid_biopsies/
Juicing的同学请注意: Is juicing making you fat? Not to mention rotting your teeth and starving your body of nutrients!
