Evidence map›Paper›PMID 41877589›Full record

ArticleInternational journal of immunopathology and pharmacology

Silencing RPL9 promotes malignant proliferation in breast cancer cells.

Tong Zhu, Junze Dai, Wenxin Li, Huiyu Zhang, Yuxuan Song, Dingye Zhang, Ruibin Liu, Xin Wang, Zhaohu Shi, Hailin Tang and 2 more

Abstract read
In one paragraph

Article in International journal of immunopathology and pharmacology. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

12 authors.

Tong ZhuDepartment of Breast Surgery, Panjin Central Hospital, Panjin, Liaoning, China.
Junze DaiGraduate School, Dalian Medical University, Dalian, Liaoning, China.ORCID 0009-0005-8729-0243
Wenxin LiDepartment of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Huiyu ZhangGraduate School, Dalian Medical University, Dalian, Liaoning, China.
Yuxuan SongDepartment of General Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Dingye ZhangDepartment of General Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Ruibin LiuDepartment of General Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Xin WangDepartment of General Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Zhaohu ShiDepartment of General Surgery, Cancer Hospital of Dalian University of Technology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.
Hailin TangState Key Laboratory of Oncology in South China, Guangdong Provincial Clinical Research Center for Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, Guangdong, China.
Xudong ZhuDepartment of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.ORCID 0000-0002-6657-6112
Yefu LiuDepartment of Hepatopancreatobiliary Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang, Liaoning, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo identify key RNA-binding proteins (RBPs) associated with breast cancer (BRCA) prognosis and to construct an RBP-based prognostic scoring model and clinical nomogram. Additionally, to explore the functional role of RPL9 in BRCA cell proliferation and apoptosis.

introductionBreast cancer is a molecularly heterogeneous malignancy in which posttranscriptional dysregulation contributes significantly to tumor progression. RNAbinding proteins regulate multiple steps of RNA metabolism and have emerged as promising prognostic biomarkers and therapeutic targets in BRCA.

methodsRNA-sequencing data and clinical information of BRCA patients were obtained from TCGA. Differential expressions, Cox, and LASSO regression analyses were performed to identify prognosis-related RBPs and establish a risk scoring model. A clinical nomogram integrating the model with clinicopathological features was generated. Tumor mutational burden (TMB), tumor immune microenvironment (TIME), and immune checkpoint expression were analyzed between risk groups. Functional assays, including CCK-8 proliferation and flow cytometry-based apoptosis analyses, were conducted in BRCA cell lines to determine the role of RPL9.

resultsNine prognosis-related RBPs were identified and used to construct the RBPbased prognostic scoring model, which effectively predicted 3-, 5-, and 9-year survival outcomes. The model remained robust in an external validation cohort. A clinical nomogram based on the model showed strong predictive performance. High-risk patients displayed higher TMB, lower immune scores, reduced CD8⁺ T-cell infiltration, and decreased immune checkpoint expression. RPL9 was markedly downregulated in BRCA tissues and cells, and RPL9 overexpression inhibited cell proliferation and significantly increased apoptosis, supporting its tumor-suppressive role.

conclusionWe identified and constructed a 9-RBP based scoring model and a clinical prognostic nomogram for accurately predicting the survival probability and assessing the tumor microenvironment of patients with BRCA. Moreover, our findings firstly demonstrated that RPL9 downregulation correlated with poor clinical outcomes and functionally drives tumor cell proliferation, establishing it as a potential therapeutic target and prognostic biomarker for BRCA.

Indexed as

Breast NeoplasmsCell ProliferationGene SilencingRibosomal ProteinsApoptosisBiomarkers, TumorCell Line, TumorFemaleGene Expression Regulation, NeoplasticHumansMiddle AgedNomogramsPrognosisRNA-Binding ProteinsTumor MicroenvironmentBiomarkers, TumorRibosomal ProteinsRNA-Binding ProteinsBreast cancerClinical prognosisRisk score modelRNA-binding proteinsRPL9Tumor microenvironment

Identifiers

PMID41877589
PMCPMC13018688

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.