Shi Min, Jia Jun-Su, Gao Guo-Sheng, Hua Xin
Department of Clinical Laboratory, Ningbo No.2 Hospital, Ningbo, Zhejiang, China.
Biochem Biophys Rep. 2024 Mar 24;38:101695. doi: 10.1016/j.bbrep.2024.101695. eCollection 2024 Jul.
Exosomes, also termed extracellular vesicles (EVs), are an important component of the tumor microenvironment (TME) and exert versatile effects on the molecular communications in the TME of hepatocellular carcinoma (HCC). Exosome-mediated intercellular communication is closely associated with the tumorigenesis and development of HCC. Exosomes can be extracted through ultracentrifugation and size exclusion, followed by molecular analysis through sequencing. Increasing studies have confirmed the important roles of exosome-derived ncRNAs in HCC, including tumorigenesis, progression, immune escape, and treatment resistance. Due to the protective membrane structure of exosomes, the ncRNAs carried by exosomes can evade degradation by enzymes in body fluids and maintain good expression stability. Thus, exosome-derived ncRNAs are highly suitable as biomarkers for the diagnosis and prognostic prediction of HCC, such as exosomal miR-21-5p, miR-221-3p and lncRNA-ATB. In addition, substantial studies revealed that the up-or down-regulation of exosome-derived ncRNAs had an important impact on HCC progression and response to treatment. Exosomal biomarkers, such as miR-23a, lncRNA DLX6-AS1, miR-21-5p, lncRNA TUC339, lncRNA HMMR-AS1 and hsa_circ_0004658, can reshape immune microenvironment by regulating M2-type macrophage polarization and then promote HCC development. Therefore, by controlling exosome biogenesis and modulating exosomal ncRNA levels, HCC may be inhibited or eliminated. In this current review, we summarized the recent findings on the role of exosomes in HCC progression and analyzed the relationship between exosome-derived ncRNAs and HCC diagnosis and treatment.
外泌体,也被称为细胞外囊泡(EVs),是肿瘤微环境(TME)的重要组成部分,对肝细胞癌(HCC)的TME中的分子通讯发挥着多种作用。外泌体介导的细胞间通讯与HCC的发生发展密切相关。外泌体可以通过超速离心和尺寸排阻法提取,随后通过测序进行分子分析。越来越多的研究证实了外泌体来源的非编码RNA(ncRNAs)在HCC中的重要作用,包括肿瘤发生、进展、免疫逃逸和治疗耐药性。由于外泌体具有保护性膜结构,外泌体携带的ncRNAs可以逃避体液中酶的降解并保持良好的表达稳定性。因此,外泌体来源的ncRNAs非常适合作为HCC诊断和预后预测的生物标志物,如外泌体miR-21-5p、miR-2