RRM2 Is a Putative Biomarker and Promotes Bladder Cancer Progression via PI3K/AKT/mTOR Pathway

ABSTRACT Bladder cancer (BLCA) is the tenth most common cancer worldwide, characterized by its high recurrence and progression rates. Thus, identifying prognostic biomarkers and understanding its underlying mechanisms are imperative to enhance patient outcomes. In this study, we aimed to investigate...

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Veröffentlicht in:Journal of cellular physiology 2025-01, Vol.240 (1), p.e31501-n/a
Hauptverfasser: Guo, Linfa, Zhao, Yiqiao, Bai, Xiaojie, Wang, Xiaolong, Tuoheti, Kuerban, Cao, Yuanfei, Zuo, Yingtong, Zhang, Xinhua, Liu, Tongzu
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container_title Journal of cellular physiology
container_volume 240
creator Guo, Linfa
Zhao, Yiqiao
Bai, Xiaojie
Wang, Xiaolong
Tuoheti, Kuerban
Cao, Yuanfei
Zuo, Yingtong
Zhang, Xinhua
Liu, Tongzu
description ABSTRACT Bladder cancer (BLCA) is the tenth most common cancer worldwide, characterized by its high recurrence and progression rates. Thus, identifying prognostic biomarkers and understanding its underlying mechanisms are imperative to enhance patient outcomes. In this study, we aimed to investigate the prognostic significance, expression, functional activity, and underlying mechanisms of RRM2 in BLCA. RRM2 expression and its association with pathological grading and survival were investigated in samples from TCGA dataset and BLCA tissue microarray. CCK8 assays, colony formation assays, wound healing, and transwell assays were performed to assess the role of RRM2 in BLCA cell proliferation and migration. Western blot was employed to investigate alterations in markers associated with epithelial‐to‐mesenchymal transition (EMT), apoptosis, and cell cycle regulation. Gene set enrichment analysis was performed to investigate the biological processes associated with RRM2, which were subsequently validated. The expression of RRM2 was significantly elevated in both BLCA tissues and cells. Our results also indicated a positive correlation between RRM2 expression and high tumor stage, high tumor grade, and poor survival. Knockdown of RRM2 inhibited cell proliferation and migration of BLCA. RRM2 knockdown significantly induced apoptosis and arrested the cell cycle at the G0/G1 phase. Opposite results were observed in the RRM2 overexpression cells. Additionally, our study demonstrates that RRM2 promotes BLCA progression by activating the PI3K/AKT/mTOR pathway. RRM2 is remarkably correlated with poor prognosis in BLCA and facilitate its progression via PI3K/AKT/mTOR pathway. It is suggested that RRM2 might become an effective prognostic biomarker and potential therapeutic target for BLCA.
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Our results also indicated a positive correlation between RRM2 expression and high tumor stage, high tumor grade, and poor survival. Knockdown of RRM2 inhibited cell proliferation and migration of BLCA. RRM2 knockdown significantly induced apoptosis and arrested the cell cycle at the G0/G1 phase. Opposite results were observed in the RRM2 overexpression cells. Additionally, our study demonstrates that RRM2 promotes BLCA progression by activating the PI3K/AKT/mTOR pathway. RRM2 is remarkably correlated with poor prognosis in BLCA and facilitate its progression via PI3K/AKT/mTOR pathway. 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Thus, identifying prognostic biomarkers and understanding its underlying mechanisms are imperative to enhance patient outcomes. In this study, we aimed to investigate the prognostic significance, expression, functional activity, and underlying mechanisms of RRM2 in BLCA. RRM2 expression and its association with pathological grading and survival were investigated in samples from TCGA dataset and BLCA tissue microarray. CCK8 assays, colony formation assays, wound healing, and transwell assays were performed to assess the role of RRM2 in BLCA cell proliferation and migration. Western blot was employed to investigate alterations in markers associated with epithelial‐to‐mesenchymal transition (EMT), apoptosis, and cell cycle regulation. Gene set enrichment analysis was performed to investigate the biological processes associated with RRM2, which were subsequently validated. The expression of RRM2 was significantly elevated in both BLCA tissues and cells. Our results also indicated a positive correlation between RRM2 expression and high tumor stage, high tumor grade, and poor survival. Knockdown of RRM2 inhibited cell proliferation and migration of BLCA. RRM2 knockdown significantly induced apoptosis and arrested the cell cycle at the G0/G1 phase. Opposite results were observed in the RRM2 overexpression cells. Additionally, our study demonstrates that RRM2 promotes BLCA progression by activating the PI3K/AKT/mTOR pathway. RRM2 is remarkably correlated with poor prognosis in BLCA and facilitate its progression via PI3K/AKT/mTOR pathway. 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Zhao, Yiqiao ; Bai, Xiaojie ; Wang, Xiaolong ; Tuoheti, Kuerban ; Cao, Yuanfei ; Zuo, Yingtong ; Zhang, Xinhua ; Liu, Tongzu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2431-38737ae5a735a40718a0f84ba359c648c422e9b9b968b5d36b4c9a93c68833fc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2025</creationdate><topic>1-Phosphatidylinositol 3-kinase</topic><topic>AKT</topic><topic>AKT protein</topic><topic>Apoptosis</topic><topic>Apoptosis - genetics</topic><topic>Assaying</topic><topic>Biological activity</topic><topic>Biomarkers</topic><topic>Biomarkers, Tumor - genetics</topic><topic>Biomarkers, Tumor - metabolism</topic><topic>Bladder</topic><topic>Bladder cancer</topic><topic>Cancer</topic><topic>Cell cycle</topic><topic>Cell growth</topic><topic>Cell Line, Tumor</topic><topic>Cell migration</topic><topic>Cell Movement - genetics</topic><topic>Cell proliferation</topic><topic>Cell Proliferation - genetics</topic><topic>Cell survival</topic><topic>Disease Progression</topic><topic>DNA microarrays</topic><topic>EMT</topic><topic>Epithelial-Mesenchymal Transition - genetics</topic><topic>Female</topic><topic>G1 phase</topic><topic>Gene Expression Regulation, Neoplastic - genetics</topic><topic>Gene set enrichment analysis</topic><topic>Humans</topic><topic>Male</topic><topic>Medical prognosis</topic><topic>Middle Aged</topic><topic>mTOR</topic><topic>Phosphatidylinositol 3-Kinases - genetics</topic><topic>Phosphatidylinositol 3-Kinases - metabolism</topic><topic>Prognosis</topic><topic>Proto-Oncogene Proteins c-akt - genetics</topic><topic>Proto-Oncogene Proteins c-akt - metabolism</topic><topic>Ribonucleoside Diphosphate Reductase - genetics</topic><topic>Ribonucleoside Diphosphate Reductase - metabolism</topic><topic>RRM2</topic><topic>Signal Transduction</topic><topic>Survival</topic><topic>Therapeutic targets</topic><topic>TOR protein</topic><topic>TOR Serine-Threonine Kinases - genetics</topic><topic>TOR Serine-Threonine Kinases - metabolism</topic><topic>Tumors</topic><topic>Urinary Bladder Neoplasms - genetics</topic><topic>Urinary Bladder Neoplasms - metabolism</topic><topic>Urinary Bladder Neoplasms - pathology</topic><topic>Wound healing</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Guo, Linfa</creatorcontrib><creatorcontrib>Zhao, Yiqiao</creatorcontrib><creatorcontrib>Bai, Xiaojie</creatorcontrib><creatorcontrib>Wang, Xiaolong</creatorcontrib><creatorcontrib>Tuoheti, Kuerban</creatorcontrib><creatorcontrib>Cao, Yuanfei</creatorcontrib><creatorcontrib>Zuo, Yingtong</creatorcontrib><creatorcontrib>Zhang, Xinhua</creatorcontrib><creatorcontrib>Liu, Tongzu</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Neurosciences Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health &amp; 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Thus, identifying prognostic biomarkers and understanding its underlying mechanisms are imperative to enhance patient outcomes. In this study, we aimed to investigate the prognostic significance, expression, functional activity, and underlying mechanisms of RRM2 in BLCA. RRM2 expression and its association with pathological grading and survival were investigated in samples from TCGA dataset and BLCA tissue microarray. CCK8 assays, colony formation assays, wound healing, and transwell assays were performed to assess the role of RRM2 in BLCA cell proliferation and migration. Western blot was employed to investigate alterations in markers associated with epithelial‐to‐mesenchymal transition (EMT), apoptosis, and cell cycle regulation. Gene set enrichment analysis was performed to investigate the biological processes associated with RRM2, which were subsequently validated. The expression of RRM2 was significantly elevated in both BLCA tissues and cells. 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subjects 1-Phosphatidylinositol 3-kinase
AKT
AKT protein
Apoptosis
Apoptosis - genetics
Assaying
Biological activity
Biomarkers
Biomarkers, Tumor - genetics
Biomarkers, Tumor - metabolism
Bladder
Bladder cancer
Cancer
Cell cycle
Cell growth
Cell Line, Tumor
Cell migration
Cell Movement - genetics
Cell proliferation
Cell Proliferation - genetics
Cell survival
Disease Progression
DNA microarrays
EMT
Epithelial-Mesenchymal Transition - genetics
Female
G1 phase
Gene Expression Regulation, Neoplastic - genetics
Gene set enrichment analysis
Humans
Male
Medical prognosis
Middle Aged
mTOR
Phosphatidylinositol 3-Kinases - genetics
Phosphatidylinositol 3-Kinases - metabolism
Prognosis
Proto-Oncogene Proteins c-akt - genetics
Proto-Oncogene Proteins c-akt - metabolism
Ribonucleoside Diphosphate Reductase - genetics
Ribonucleoside Diphosphate Reductase - metabolism
RRM2
Signal Transduction
Survival
Therapeutic targets
TOR protein
TOR Serine-Threonine Kinases - genetics
TOR Serine-Threonine Kinases - metabolism
Tumors
Urinary Bladder Neoplasms - genetics
Urinary Bladder Neoplasms - metabolism
Urinary Bladder Neoplasms - pathology
Wound healing
title RRM2 Is a Putative Biomarker and Promotes Bladder Cancer Progression via PI3K/AKT/mTOR Pathway
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