Coexpression Network Analysis Identifies a Novel Nine-RNA Signature to Improve Prognostic Prediction for Prostate Cancer Patients.

{"sci_version": "1.0", "schema": "https://corpus.bntrg.co.uk/sci/1.0/sci.schema.json", "id": "pmid:32953881", "kind": "science-record", "revision": 3, "content_hash": "sha256:bcb5f54f70d2a743ce11f841e74da110176bca2b9f222d44efe0a738b97af9f1", "created_at": "2026-11-01T15:41:11Z", "updated_at": "2026-11-01T21:23:49Z", "generator": {"name": "corpus-assay-engine", "run_id": "reading-sci-2026-11-01"}, "paper": {"state": "complete", "title": "Coexpression Network Analysis Identifies a Novel Nine-RNA Signature to Improve Prognostic Prediction for Prostate Cancer Patients.", "doi": "10.1155/2020/4264291", "pmid": "32953881", "authors": ["Jiarong Cai", "Zheng Chen", "Xuelian Chen", "He Huang", "Xia Lin", "Bin Miao"], "journal": "BioMed research international", "year": 2020, "abstract": "BACKGROUND: Prostate cancer (PCa) is the most common malignancy and the leading cause of cancer death in men. Recent studies suggest the molecular signature was more effective than the clinical indicators for the prognostic prediction, but all of the known studies focused on a single RNA type. The present study was to develop a new prognostic signature by integrating long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) and evaluate its prognostic performance.\nMETHODS: The RNA expression data of PCa patients were downloaded from The Cancer Genome Atlas (TCGA) or Gene Expression Omnibus database (GSE17951, GSE7076, and GSE16560). The PCa-driven modules were identified by constructing a weighted gene coexpression network, the corresponding genes of which were overlapped with differentially expressed RNAs (DERs) screened by the MetaDE package. The optimal prognostic signature was screened using the least absolute shrinkage and selection operator analysis. The prognostic performance and functions of the combined prognostic signature was then assessed.\nRESULTS: Twelve PCa-driven modules were identified using TCGA dataset and validated in the GSE17951 and GSE7076 datasets, and six of them were considered to be preserved. A total of 217 genes in these 6 modules were overlapped with 699 DERs, from which a nine-gene prognostic signature was identified (including 3 lncRNAs and 6 mRNAs), and the risk score of each patient was calculated. The overall survival was significantly shortened in patients having the risk score higher than the cut-off, which was demonstrated in TCGA (p = 5.063E - 03) dataset and validated in the GSE16560 (p = 3.268E - 02) dataset. The prediction accuracy of this risk score was higher than that of clinical indicators (the Gleason score and prostate-specific antigen) or the single RNA type, with the area under the receiver operator characteristic curve of 0.945. Besides, some new therapeutic targets and mechanisms (MAGI2-AS3-SPARC/GJA1/CYSLTR1, DLG5-AS1-DEFB1, and RHPN1-AS1-CDC45/ORC) were also revealed.\nCONCLUSION: The risk score system established in this study may provide a novel reliable method to identify PCa patients at a high risk of death.", "claims": [{"id": "claim-method", "statement": "In order to confirm whether the signature identified by multivariate analysis was optimal, L1-penalized (least absolute shrinkage and selection operator (LASSO)) Cox proportional hazard model in the penalized package (version, 0.9-5; http://bioconductor.org/packages/penalized/) [23, 24] was further applied.", "kind": "methodological", "target": null, "evidence": [{"asset": "source:pmid:32953881", "locator": "sections[6] \"2.4. Construction of an lnRNA-mRNA Prognostic Model\" paragraph 2", "quote": "In order to confirm whether the signature identified by multivariate analysis was optimal, L1-penalized (least absolute shrinkage and selection operator (LASSO)) Cox proportional hazard model in the penalized package (version, 0.9-5; http://bioconductor.org/packages/penalized/) [23, 24] was further applied."}], "state": "complete"}, {"id": "claim-data-access", "statement": "All data were downloaded from The Cancer Genome Atlas (TCGA, https://portal.gdc.cancer.gov/) and Gene Expression Omnibus (GEO, http://www.ncbi.nlm.nih.gov/geo/).", "kind": "methodological", "target": null, "evidence": [{"asset": "source:pmid:32953881", "locator": "sections[16] \"Data Availability\" paragraph 2", "quote": "All data were downloaded from The Cancer Genome Atlas (TCGA, https://portal.gdc.cancer.gov/) and Gene Expression Omnibus (GEO, http://www.ncbi.nlm.nih.gov/geo/)."}], "state": "complete"}], "gaps": []}, "experiment": {"state": "complete", "objective": null, "steps": [{"id": "read_published_estimate", "order": 1, "name": "Read the published estimate from the source", "kind": "other", "state": "complete", "blocked_on": null, "description": "The claim, method and evidence span published with the source article.", "duration_hours": null, "parameters": {}, "inputs": ["source:pmid:32953881"], "outputs": ["the published estimate and its evidence"], "instruments": [], "reagents": []}, {"id": "obtain_source_data", "order": 2, "name": "Obtain the source data from the named repository", "kind": "data-preparation", "state": "complete", "blocked_on": null, "description": "The GEO series accession resolves and its sample accessions are listed. 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