microRNA-130b-3p contained in MSC-derived EVs promotes lung cancer progression by regulating the FOXO3/NFE2L2/TXNRD1 axis

Autor: Sui Zesen, Kaican Cai, Jianhua Zhang, Yijun Mo, Li Dongfang, Chenghua Zhong, Jianfeng Tan, Jun Kuang, Tieniu Song, Jun Yan, Quanwei Guo
Rok vydání: 2021
Předmět:
Zdroj: Molecular Therapy Oncolytics
Molecular Therapy: Oncolytics, Vol 20, Iss, Pp 132-146 (2021)
ISSN: 2372-7705
Popis: This study aimed to explore the molecular mechanism by which mesenchymal stem cells (MSCs) mediate lung cancer progression. Extracellular vesicles (EVs) were isolated from transfected or untransfected MSCs, and were co-cultured with lung cancer cells with/without microRNA-130b-3p (miR-130b-3p) inhibitor, mimic, overexpression plasmids of FOXO3/NFE2L2, or shRNAs. CCK-8 assay, colony formation, transwell assay, and flow cytometry were carried out to determine the biological functioning of lung cancer cells. Furthermore, FOXO3, Keap1, NFE2L2, and TXNRD1 expression was determined by qRT-PCR and western blot analysis. A tumor xenograft mouse model was used to determine role of EVs-miR-130b-3p and its target FOXO3 in lung cancer progression in vivo. miR-130b-3p was highly expressed in lung cancer tissues and MSC-derived EVs. Moreover, the MSC-derived EVs transferred miR-130b-3p to lung cancer cells to promote cell proliferation, migration, and invasion while repress cell apoptosis. miR-130b-3p directly targeted FOXO3, and FOXO3 elevated Keap1 expression to downregulate NFE2L2, thus inhibiting TXNRD1. FOXO3 overexpression or silencing of NFE2L2 or TXNRD1 diminished lung cancer cell proliferation, invasion, and migration but enhanced apoptosis. EV-delivered miR-130b-3p or FOXO3 silencing promoted lung cancer progression in vivo. In summary, MSC-derived EVs with upregulated miR-130b-3p suppressed FOXO3 to block the NFE2L2/TXNRD1 pathway, thus playing an oncogenic role in lung cancer progression.
Graphical Abstract
The study mainly addresses the oncogenic role of miR-130b-3p contained in mesenchymal stem cell-derived extracellular vesicles in the malignant progression of lung cancer, which was associated with the FOXO3/NFE2L2/TXNRD1 axis, thus highlighting a potential therapeutic action against lung cancer.
Databáze: OpenAIRE