以外泌体为基础的液体活检在胰腺癌诊断中的研究进展

胰腺癌是一种恶性程度极高的消化系统肿瘤.因缺乏敏感有效的检测标志物,多数患者就诊时已处于晚期,治疗手段有限,预后极差,因此早期诊断是患者能及时治疗、改善预后的最有效途径.外泌体是由细胞分泌的细胞外囊泡,具有脂质双分子膜结构保证内含的大量生物活性物质稳定存在,可确切反映亲代细胞特征,并且广泛存在于各种体液中,可无创、方便...

Research Progress of Exosome-based Liquid Biopsy in Diagnosis of Pancreatic Cancer

Pancreatic cancer (PC) is a highly malignant tumor of the digestive system. Due to the lack of sensitive and effective detection markers, the tumor is usually at a relatively advanced stage in initial diagnosis. Therefore, early detection of PC is crucial for timely treatment and better prognosis. Exosomes are extracellular vesicles secreted by cells. They have a lipid bimolecular membrane structure to ensure the stable existence of a large number of biologically active substances contained therein. So they can accurately reflect the characteristics of parental cells. Exosomes are widely present in various body fluids and can noninvasively, conveniently and real-timely extracted, with the potential to become a marker for early tumor diagnosis. Previous studies have shown that compared with traditional diagnostic methods, exosomes showed higher sensitivity and specificity in the early diagnosis of various cancers. This article reviews the research progress of exosomes in the early diagnosis of pancreatic cancer.