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- W2898034622 abstract "Prostate cancer (PCa) is the most frequently diagnosed non-skin cancer and a leading cause of mortality among males in developed countries. However, our understanding of the global changes of protein complexes within PCa tissue specimens remains very limited, although it has been well recognized that protein complexes carry out essentially all major processes in living organisms and that their deregulation drives the pathogenesis and progression of various diseases.By coupling tandem mass tagging-synchronous precursor selection-mass spectrometry/mass spectrometry/mass spectrometry with differential expression and co-regulation analyses, the present study compared the differences between protein complexes in normal prostate, low-grade PCa, and high-grade PCa tissue specimens.Globally, a large downregulated putative protein-protein interaction (PPI) network was detected in both low-grade and high-grade PCa, yet a large upregulated putative PPI network was only detected in high-grade but not low-grade PCa, compared with normal controls. To identify specific protein complexes that are deregulated in PCa, quantified proteins were mapped to protein complexes in CORUM (v3.0), a high-quality collection of 4274 experimentally verified mammalian protein complexes. Differential expression and gene ontology (GO) enrichment analyses suggested that 13 integrin complexes involved in cell adhesion were significantly downregulated in both low- and high-grade PCa compared with normal prostate, and that four Prothymosin alpha (ProTα) complexes were significantly upregulated in high-grade PCa compared with normal prostate. Moreover, differential co-regulation and GO enrichment analyses indicated that the assembly levels of six protein complexes involved in RNA splicing were significantly increased in low-grade PCa, and those of four subcomplexes of mitochondrial complex I were significantly increased in high-grade PCa, compared with normal prostate.In summary, to the best of our knowledge, the study represents the first large-scale and quantitative, albeit indirect, comparison of individual protein complexes in human PCa tissue specimens. It may serve as a useful resource for better understanding the deregulation of protein complexes in primary PCa." @default.
- W2898034622 created "2018-10-26" @default.
- W2898034622 creator A5029187604 @default.
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- W2898034622 creator A5062342959 @default.
- W2898034622 creator A5070472491 @default.
- W2898034622 creator A5082018017 @default.
- W2898034622 date "2019-04-13" @default.
- W2898034622 modified "2023-10-15" @default.
- W2898034622 title "Quantitative proteomic analysis of prostate tissue specimens identifies deregulated protein complexes in primary prostate cancer" @default.
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- W2898034622 doi "https://doi.org/10.1186/s12014-019-9236-2" @default.
- W2898034622 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6461817" @default.
- W2898034622 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/31011308" @default.
- W2898034622 hasPublicationYear "2019" @default.
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