Background: Nasopharyngeal carcinoma (NPC) is particularly prevalent in East and Southeast Asia. Competing endogenous RNA (ceRNA) networks are known to play an essential role in the emergence of various diseases, including cancer. Building a network of protein-protein interactions (PPIs) and ceRNAs can facilitate the detection of potential connections between messenger RNAs (mRNAs) and various non-coding RNAs. However, the precise role of ceRNA networks in NPC has not been examined in detail. Therefore, the primary aim of the present study was to characterize a ceRNA network for NPC.
Methods: Datasets of microRNA (miRNA), long non-coding RNA (lncRNA), and mRNA microarrays were downloaded from the Gene Expression Omnibus (GEO) database. Data were standardized and differentially expressed genes (DEGs) were screened using the limma package. The ClusterProfiler software suite was used to perform enrichment analysis of differentially expressed mRNAs using Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and gene set enrichment analysis (GSEA) techniques.
Results: A total of 160 lncRNAs, 8 miRNAs, and 147 mRNAs were differentially expressed in NPC samples. A ceRNA network was constructed using four lncRNAs, five miRNAs, and one mRNA that were dysregulated in NPC. Cellular functions of the abnormally expressed mRNAs were mainly associated with tumor cell movement, cell growth and proliferation, cell cycle, invasion, and metastasis.
Conclusions: The ceRNA network constructed herein clarified the regulatory mechanisms through which lncRNAs act as ceRNAs and participate in NPC development. Notably, lncRNAs, miRNAs, and mRNAs identified in this ceRNA network can serve as therapeutic targets and prognostic biomarkers for NPC.
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http://dx.doi.org/10.21037/tcr-24-263 | DOI Listing |
Biochem Genet
January 2025
Department of Gastroenterology & Hepatology, Dazhou Integrated TCM and Western Medicine Hospital: Dazhou Second People's Hospital, Dazhou, 635000, Sichuan, China.
Ulcerative colitis (UC) is a chronic inflammatory bowel disease characterized by intestinal inflammation and autoimmune responses. This study aimed to identify diagnostic biomarkers for UC through bioinformatics analysis and machine learning, and to validate these findings through immunofluorescence staining of clinical samples. Differential expression analysis was conducted on expression profile datasets from 4 UC samples.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Marine Science and Engineering, Jiangsu Province Engineering Research Center for Aquatic Animals Breeding and Green Efficient Aquacultural Technology, Jiangsu Key Laboratory of Ocean-Land Environmental Change and Ecological Construction, Nanjing Normal University, Nanjing 210023, Jiangsu, China; Co-Innovation Center for Marine Bio-Industry Technology of Jiangsu Province, Lianyungang 222005, China. Electronic address:
As cold-blooded vertebrates, fish are sensitive to environmental changes. The outcome of pathogen infections in fish therefore is highly shaped by hypoxia. The epigenetic regulation of competitive endogenous RNA (ceRNA) bridging non-coding RNAs and mRNAs represents a promising mechanism modulating antibacterial response plus environmental stress.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Peking Union Medical College, Chinese Academy of Medical Science, Beijing 100010, China.
Osteoarthritis (OA), particularly in the knee and hip, poses a significant global health challenge due to limited therapeutic options. To elucidate the molecular mechanisms of OA and identify potential biomarkers and therapeutic targets, we utilized genome-wide association studies (GWAS) and cis-miRNA expression quantitative trait loci (cis-miR-eQTL) datasets to identify miRNAs associated with OA, revealing 16 that were linked to knee OA and 21 to hip OA. Among these, hsa-miR-1303 was significantly upregulated in both knee and hip OA (IVW: = 6.
View Article and Find Full Text PDFAnimals (Basel)
January 2025
Key Laboratory of Yak Breeding of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China.
Lactation is a complex physiological process regulated by numerous genes and factors. Circular RNA (circRNA), a non-coding RNA, acts as a molecular sponge that sequesters microRNAs (miRNAs) to regulate target gene expression. Although circRNA has been linked to mammary gland lactation, its specific role in yaks remains underexplored.
View Article and Find Full Text PDFInt Immunopharmacol
January 2025
Department of Critical Care Medicine, Tianjin Medical University General Hospital, Tianjin, China; Department of Anesthesiology, Tianjin Medical University General Hospital, Tianjin, China; Laboratory of Anesthesia and Critical Care Medicine in Colleges and Universities of Shandong Province, School of Anesthesiology, Shandong Second Medical University, Weifang, Shandong, China. Electronic address:
Background: Ferroptosis is a new form of iron-dependent cell death that is closely associated with sepsis. However, few studies have investigated the diagnostic and therapeutic potential for ferroptosis-related genes (FRGs) among postoperative sepsis.
Methods: The GSE131761 dataset was used to identify differentially expressed FRGs (DE-FRGs).
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