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  • Title: Propofol attenuates prostate cancer progression by upregulating TRHDE-AS1 expression, and METTL14 could mediate its m6A modification.
    Author: Chen Z, Li Q, Li Z, Hu G.
    Journal: Clin Exp Pharmacol Physiol; 2024 Nov; 51(11):e13924. PubMed ID: 39322401.
    Abstract:
    Propofol has become a microtubule-stabilizing drug for prostate cancer (PC) therapy, but propofol resistance impairs the therapeutic effect. This study aimed to explore the regulatory mechanism of propofol in the pathogenesis of PC through mechanisms involving N6-methyladenosine (m6A) modification. The changes in PC cell malignancy were evaluated by means of transwell, cell counting kit 8 (CCK-8), western blotting and tumour xenograft model assays. Long noncoding RNA TRHDE-AS1 and m6A methyltransferase METTL14 expression levels were determined via reverse transcription quantitative polymerase chain reaction (RT-qPCR). The m6A modification of TRHDE-AS1 which was mediated by METTL14 was confirmed by conducting methylated RNA immunoprecipitation (MeRIP) assay. We observed that propofol (200 μM) inhibited PC cell malignancy in vivo and in vitro, elucidating that it impaired cell proliferation, migration and tumour growth but induced apoptosis. TRHDE-AS1 expression was observed to be lower in PC cells and tissues, and propofol induced TRHDE-AS1 upregulation in PC cells. Propofol was capable of reversing the tumour-promoting effect of TRHDE-AS1 knockdown in PC cells. Additionally, METTL14 was upstream of TRHDE-AS1 to induce m6A modification of TRHDE-AS1 in PC cells. Collectively, our results show that propofol prevents PC progression by upregulating TRHDE-AS1 expression and METTL14 is involved in the m6A modification of TRHDE-AS1. These findings suggest that TRHDE-AS1 may be a potential therapeutic target for the improvement of propofol's therapeutic effect.
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