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Background

Bladder cancer (BCa) is one of the most prevalent cancers occurring in the urinary system. Long noncoding RNAs (lncRNAs), in recent years, have emerged as crucial regulators in various biological processes of tumors.

Aim

To identify the role of MIR4435-2 host gene (MIR4435-2HG) and uncover its molecular mechanism in BCa.

Methods

Firstly, quantitative real-time PCR (RT-qPCR) analysis was used to examine MIR4435-2HG expression in BCa cells. Cell Counting Kit-8 (CCK-8), 5-ethynyl-2'-deoxyuridine (EdU), wound healing, and transwell assays were implemented to identify the role of MIR4435-2HG in BCa. RNA-binding protein immunoprecipitation (RIP), RNA pull down, and luciferase reporter assays were applied to explore the potential mechanism of MIR4435-2HG in BCa.

Results

MIR4435-2HG was highly expressed in BCa. Moreover, MIR4435-2HG silencing abrogated BCa cell proliferation, migration, and invasion. In terms of underlying mechanism, MIR44352HG acted as a microRNA-2467-3p (miR-2467-3p) sponge to control the expression of IQ motif containing GTPase activating protein 3 (IQGAP3) and cell division cycle associated 5 (CDCA5), resulting in activation of the rat sarcoma virus (Ras)/rapidly accelerated fibrosarcoma (Raf)/mitogen-activated protein kinase (MEK)/extracellular signal-regulated kinase (ERK) and PI3K/AKT/mTOR signaling pathways.

Conclusion

MIR4435-2HG involves in the progression of BCa, which might provide novel insights for BCa treatment."xsd:string
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http://purl.uniprot.org/citations/35993042http://purl.uniprot.org/core/author"Guo L."xsd:string
http://purl.uniprot.org/citations/35993042http://purl.uniprot.org/core/author"Deng X."xsd:string
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http://purl.uniprot.org/citations/35993042http://purl.uniprot.org/core/title"lncRNA MIR4435-2HG Accelerates the Development of Bladder Cancer through Enhancing IQGAP3 and CDCA5 Expression."xsd:string
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