白血病细胞源外泌体的作用研究进展

Progress on role of exosomes derived from leukemia cells

白血病（leukemia）是一类造血干/祖细胞恶性克隆性疾病。外泌体是活细胞分泌到胞外的一种纳米级的微囊泡,是细胞间对话的信息和物质载体^（[1]）。外泌体携带亲本细胞来源的蛋白质、核酸（mRNA、microRNA和DNA等）及脂质等生物信息分子,可近距离和/或经体液流动远距离、特异性调控靶细胞的生理和病理活动^（[2-3]）。靶细胞摄取外泌体的途径主要有网格蛋白介导的内吞途径、

Exosomes are bilayer-lipid membrane nanovesicle from almost all living cell types which are in-volved in intercellular substance transporting and signaling communication. Exosomes are 30 ~ 120 nm in diameter, can transfer bioactive molecules including DNA, RNA, microRNA, protein as well as lipids derived from parents＇ cells to re-cipient cells by body fluids, and specifically influence their physiological or pathological conditions. Leukemia is due to malignant proliferation of hematopoietic stem and progenitor cells. It was reported that leukemia cells derived exosomes play a key role in disease progression, drug resistance, and predict prognosis. This paper will outline the role of exosomes de-rived from leukemia cells and provide important information to help explore the molecular pathogenesis, biomarker as well as therapeutic target of leukemia.