Journal
JOURNAL OF CELLULAR PHYSIOLOGY
Volume 234, Issue 8, Pages 13021-13031Publisher
WILEY
DOI: 10.1002/jcp.27973
Keywords
Breast cancer; metabolic pathway; metabolomics; transcriptomics
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ObjectiveBreast cancer (BC) is a malignant tumor which threat to women's physical and mental health. However, the mechanism of metabolism alteration in BC remains unclear. This study is intended to figure out the relationship between the alternation of metabolism and the progression of BC. MethodsIn this study, metabolites of plasma in 60 BC patients and 40 healthy volunteers were detected using liquid chromatography mass spectrometer (LC-MS). Transcriptomic data were obtained from The Cancer Genome Atlas (TCGA) and Gene Expression Omnibus (GEO) database. Kyoto Encyclopedia of Genes and Genomes (KEGG) database was performed to enrich the pathways. ResultsA total of 97 metabolites have been identified and measured, of which 17 compounds exhibited the differential expression between tumor group and control group (p<0.05; FDR<0.05). Metabolites set enrichment analysis (MSEA) displayed that there were 12 significantly enriched pathways in all. Through the KEGG database, 382 genes were found closely correlated with the altered metabolic pathways. TCGA and GEO transcriptomic profiling revealed that 5,018 genes significantly changed between tumor group and control group. Integrating these genes with the transcriptomic data from the corresponding KEGG data set, we identified most of the differential expressed genes were related to purine metabolism. A total of 28 different expression genes were hub genes, wherein AMPD1 and RRM2 were significantly effective in the prediction of survival of BC patients, with 0.04 and 0.02, respectively. ConclusionsCombining with the transcriptomic and metabolomics data, we found that the dysregulation of purine metabolism pathway might affect the progression of BC.
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