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pmid:33883925
Assessment of Weighted Gene Co-Expression Network Analysis to Explore Key Pathways and Novel Biomarkers in Muscular Dystrophy.
Xiaoxue Xu · Yuehan Hao · Jiao Wu · Jing Zhao · Shuang Xiong
Pharmacogenomics and personalized medicine · 2021 doi:10.2147/PGPM.S301098
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Experiment
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Complete file
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Weighted gene co-expression network analysis (WGCNA) was conducted on the top 50% of altered genes. The key modules associated with the clinical features of DMD and BMD were identified. Gene Ontology (GO) enrichment and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses were performed using the DAVID website. A protein-protein interaction (PPI) network was constructed using the STRING website. MCODE, together with the Cytohubba plug-ins of Cytoscape, screened out the potential hub genes, which were subsequently verified via receiver operating characteristic (ROC) curves in other datasets.\nRESULTS: Among the 11 modules obtained, the black module was predominantly associated with pathology and DMD, whereas the light-green module was primarily related to age and BMD. Functional enrichment assessments indicated that the genes in the black module were primarily clustered in \"immune response\" and \"phagosome,\" whereas the ones in the light-green module were chiefly enriched in \"protein polyubiquitination\". Eleven essential genes were eventually identified, including VCAM1, TYROBP, CD44, ITGB2, CSF1R, LCP2, C3AR1, CCL2, and ITGAM for DMD, along with UBA5 and UBR2 for BMD.\nCONCLUSION: Overall, our findings may be useful for investigating the mechanisms underlying DMD and BMD. 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null, "label": "unpaired Student’s t-test (two-tailed)", "dsl_operations": [], "missing_operations": [], "expressible": null, "parameters": {}, "data_shapes": [], "evidence": {"score": 1.0, "band": "verbatim", "quote": "After preprocessing, the raw data were extracted and unpaired Student’s t-test (two-tailed) was used to evaluate significant differences between the patients with MD and healthy subjects."}}], "targets": [], "gaps": ["method.reader_named_unmapped"]}, "capability": {"state": "complete", "requirements": [{"capability_id": "capability:computational_analysis", "label": "Computational analysis platform", "assay_families": ["meta_analysis", "machine_learning", "survival_analysis", "statistical_regression", "pca", "molecular_docking", "network_analysis", "differential_expression", "gwas"], "availability_state": "owned", "tier_unlocked": "R1", "candidate": "Automated Assays Laravel application and simulated adapters"}], "gaps": []}, "readiness": {"state": "complete", "tier": 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The physical bench the paper used is not, so a physical validation cannot be run here."}, "data": {"tier": "R1", "reachable": true, "accessions": ["GSE109178", "GSE6011", "GSE13608"], "resolved_accessions": ["GSE109178", "GSE6011", "GSE13608"], "statements": ["GSE109178 platform is “GPL570, [HG-U133_Plus_2] Affymetrix Human Genome U133 Plus 2.0 Array”, which was used as the training dataset. This dataset contained muscle biopsies from patients with DMD (n = 17), BMD (n = 11), LGMD2I (LGMD type 2I) (n = 7), LGMD2B (LGMD type 2B) (n = 8), as well as from normal controls (n = 6)."], "basis": "The paper names GSE109178, GSE6011, GSE13608 in Gene Expression Omnibus (GEO) and the accession resolves in the repository. 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