LncRNA AL139294.1 can be transported by extracellular vesicles to promote the oncogenic behaviour of recipient cells through activation of the Wnt and NF-κB2 pathways in non-small-cell lung cancer

作者：Xinyi Ma, Zhenhua Chen, Wei Chen, Ziyuan Chen, Yue Shang, Yikai Zhao, Leyi Li, Chengwei Zhou, Jinxian He, Xiaodan Meng · 发表于：Journal of Experimental & Clinical Cancer Research · 年份：2024 · DOI：10.1186/s13046-023-02939-z · 被引用次数：25 · 研究领域：Extracellular vesicles in disease、Cancer-related molecular mechanisms research、Ferroptosis and cancer prognosis

BACKGROUND: Extracellular vesicles (EVs) participate in cancer development via cell-to-cell communication. Long non-coding RNAs (lncRNAs), one component of EVs, can play an essential role in non-small-cell lung cancer (NSCLC) through EV-mediated delivery. METHODS: The NSCLC-associated lncRNA AL139294.1 in EVs was identified via lncRNA microarray analysis. The role of AL139294.1 in NSCLC was examined in vitro and in vivo. Confocal microscopy was used to observe the encapsulation of AL139294.1 into EVs and its transport to recipient cells. A co-culture device was used to examine the effects of transported AL139294.1 on the oncogenic behaviour of recipient cells. Dual-luciferase reporter assay was performed to verify the direct interaction of miR-204-5p with AL139294.1 and bromodomain-containing protein 4 (BRD4). AL139294.1 and miR-204-5p in EVs were quantified using quantitative polymerase chain reaction. Receiver operating characteristic analyses were conducted to evaluate the diagnostic efficiency. RESULTS: The lncRNA AL139294.1 in EVs promoted NSCLC progression in vitro and in vivo. After AL139294.1 was encapsulated into EVs and transported to recipient cells, it promoted the cells' proliferation, migration, and invasion abilities by competitively binding with miR-204-5p to regulate BRD4, leading to the activation of the Wnt and NF-κB2 pathways. Additionally, the expression of serum lncRNA AL139294.1 in EVs was increased, whereas miR-204-5p in EVs was decreased in NSCLC. Hig...