國家衛生研究院 NHRI:Item 3990099045/16009
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    Please use this identifier to cite or link to this item: http://ir.nhri.org.tw/handle/3990099045/16009


    Title: MEG3-mediated oral squamous-cell-carcinoma-derived exosomal miR-421 activates angiogenesis by targeting HS2ST1 in vascular endothelial cells
    Authors: Huang, CY;Chou, ST;Hsu, YM;Chao, WJ;Wu, GH;Hsiao, JR;Wang, HD;Shiah, SG
    Contributors: National Institute of Cancer Research
    Abstract: Exosomal microRNAs (miRNAs) from cancer cells play a key role in mediating the oral squamous cell carcinoma (OSCC) microenvironment. The objective of this study was to investigate how the long non-coding RNA (lncRNA) MEG3 affects OSCC angiogenesis through exosomal miR-421. Global miRNA microarray analysis and quantitative real-time PCR (qRT-PCR) were performed to determine the level of miRNAs in OSCC cell-derived exosomes. Cell migration, invasion, tube formation, immunohistochemistry, and hemoglobin concentrations were used to study the effects of exosomal miR-421 in angiogenesis. Western blotting was used to determine the expression level of HS2ST1 and VEGFR2-related downstream proteins. MiRNA array and qRT-PCR identified the upregulation of miR-421 in OSCC cell-derived exosomes. Furthermore, exosomal miR-421 can be taken up by human umbilical vein endothelial cells (HUVECs) and then target HS2ST1 through VEGF-mediated ERK and AKT phosphorylation, thereby promoting HUVEC migration, invasion, and tube formation. Additionally, forced expression of the lncRNA MEG3 in OSCC cells reduced exosomal miR-421 levels and then increased HS2ST1 expression, thereby reducing the VEGF/VEGFR2 pathway in HUVECs. Our results demonstrate a novel mechanism by which lncRNA MEG3 can act as a tumor suppressor and regulate endothelial angiogenesis through the exosomal miR-421/HS2ST1 axis, which provides a potential therapeutic strategy for OSCC angiogenesis.
    Date: 2024-07-10
    Relation: International Journal of Molecular Sciences. 2024 Jul 10;25(14):Article number 7576.
    Link to: http://dx.doi.org/10.3390/ijms25147576
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1422-0067&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:001277307900001
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85199756617
    Appears in Collections:[Shine-Gwo Shiah] Periodical Articles

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