國家衛生研究院 NHRI:Item 3990099045/15390
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    题名: REST-repressed lncRNA LINC01801 induces neuroendocrine differentiation in prostate cancer via transcriptional activation of autophagy
    作者: Chang, CH;Cheng, TY;Yeh, WW;Luo, YL;Campbell, M;Kuo, TC;Shen, TW;Hong, YC;Tsai, CH;Peng, YC;Pan, CC;Yang, MH;Shih, JC;Kung, HJ;Huang, WJ;Chang, PC;Lin, TP
    贡献者: Institute of Molecular and Genomic Medicine
    摘要: The association between REST reduction and the development of neuroendocrine prostate cancer (NEPC), a novel drug-resistant and lethal variant of castration-resistant prostate cancer (CRPC), is well established. To better understand the mechanisms underlying this process, we aimed to identify REST-repressed long noncoding RNAs (lncRNAs) that promote neuroendocrine differentiation (NED), thus facilitating targeted therapy-induced resistance. In this study, we used data from REST knockdown RNA sequencing combined with siRNA screening to determine that LINC01801 was upregulated and played a crucial role in NED in prostate cancer (PCa). Using The Cancer Genome Atlas (TCGA) prostate adenocarcinoma database and CRPC samples collected in our laboratory, we demonstrated that LINC01801 expression is upregulated in NEPC. Functional experiments revealed that overexpression of LINC01801 had a slight stimulatory effect on the NED of LNCaP cells, while downregulation of LINC01801 significantly inhibited the induction of NED. Mechanistically, LINC01801 is transcriptionally repressed by REST, and transcriptomic analysis revealed that LINC01801 preferentially affects the autophagy pathway. LINC01801 was found to function as a competing endogenous RNA (ceRNA) to regulate the expression of autophagy-related genes by sponging hsa-miR-6889-3p in prostate cancer cells. In conclusion, our data expand the current knowledge of REST-induced NED and highlight the contribution of the REST-LINC01801-hsa-miR-6889-3p axis to autophagic induction, which may provide promising avenues for therapeutic opportunities.
    日期: 2023-09-15
    關聯: American Journal of Cancer Research. 2023 Sep 15;13(9):3983-4002.
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=2156-6976&DestApp=IC2JCR
    Cited Times(WOS): http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=RID&SrcApp=RID&DestLinkType=FullRecord&DestApp=ALL_WOS&KeyUT=001108758900008
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