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Long noncoding RNA and messenger RNA abnormalities in pediatric sepsis

ABSTRACT: Long noncoding RNA and messenger RNA abnormalities in pediatric sepsis

PROVIDER: PRJNA606469 | ENA |

REPOSITORIES: ENA

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Long noncoding RNA and messenger RNA abnormalities in pediatric sepsis

Project description:Sepsis represents a complex disease with dysregulated inflammatory response and high mortality rate. Long noncoding RNAs (lncRNAs) have been reported to play regulatory roles in a variety of biological processes. However, studies evaluating the function of lncRNAs in pediatric sepsis are scarce, and current knowledge of the role of lncRNAs in pediatric sepsis is still limited. We explored the expression patterns of both lncRNAs and mRNAs between pediatric sepsis patients and healthy controls based on a comprehensive microarray analysis.

2020-02-14 | GSE145227 | GEO

Long noncoding RNA and messenger RNA abnormalities in pediatric sepsis: a preliminary study.

Project description:BackgroundSepsis represents a complex disease with dysregulated inflammatory response and high mortality rate. Long noncoding RNAs (lncRNAs) have been reported to play regulatory roles in a variety of biological processes. However, studies evaluating the function of lncRNAs in pediatric sepsis are scarce, and current knowledge of the role of lncRNAs in pediatric sepsis is still limited. The present study explored the expression patterns of both lncRNAs and mRNAs between pediatric sepsis patients and healthy controls based on a comprehensive microarray analysis.MethodsLncRNA and mRNA microarray was used to detect the expression of lncRNAs and mRNAs in the septic and control groups. Aberrantly expressed mRNAs and lncRNAs identified were further interpreted by enrichment analysis, receiver operating characteristic (ROC) curve analysis, co-expression network analysis, and quantitative real-time PCR (qPCR).ResultsA total of 1488 differetially expressed lncRNAs and 1460 differentially expressed mRNAs were identified. A co-expression network of the identified lncRNAs and mRNAs was constructed. In this network, lncRNA lnc-RP11-1220 K2.2.1-7 is correlated with mRNA CXCR1 and CLEC4D; lncRNA lnc-ANXA3-2 is correlated with mRNA CLEC4D; lncRNA lnc-TRAPPC5-1 is correlated with mRNA DYSF and HLX; lncRNA lnc-ZNF638-1 is correlated with mRNA DYSF and HLX. Significantly different expressions between pediatric sepsis patients and controls were validated by qPCR for the 4 lncRNAs and 4 co-expressed mRNAs, validating the microarray results.ConclusionsOur study contributes to a comprehensive understading of the involvment of lncRNAs and mRNAs in pediatric sepsis, which may guide subsequent experimental research. Furthermore, our study may also provide potential candidate lncRNAs and mRNAs for the diagnosis and treatment of pediatric sepsis.

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Microarray Profile of Long Noncoding RNA and Messenger RNA Expression in a Model of Alzheimer’s Disease

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Proteomic analysis identified age-associated prognostic biomarkers in pneumonia-derived pediatric sepsis

Project description:Pediatric sepsis is a leading cause of mortality in children across the world. Within pediatric sepsis, how developmental age-specific host immune response impact on the occurrence and development of pediatric sepsis is still unknown, especially between infants and toddlers, which were the major susceptible age groups in sepsis. Experimental design In this study, we applied a nested case-control study strategy and analyzed the plasma proteomes of pediatric sepsis patients between infants and toddlers in comparison to their age-matched controls respectively. Each age group consists of three subgroups with different outcomes. One hundred and ten plasma samples were pooled into 16 samples for quantitative identification by LC-MS/MS. Results It was totally quantified 677 proteins. In comparison to toddlers, infant sepsis patients were characteristic with dominant neutrophil-mediated defense, suppressed adaptive immunity and NK-mediated cytotoxicity. Besides, pentose phosphate pathway was more up-regulated in infants and associated with poor outcome. Moreover, combined Hp and Thbs1 with the AUC value of 0.958 (95%CI, 0.868, 1.000) was confirmed as potential infant-adapted prognostic marker of poor outcome in sepsis. Conclusion and clinical relevance Our proteomic analysis of age-associated pediatric sepsis combined with clinical laboratory data provided a comprehensive insight into the complex, multifactorial heterogeneous host response to pediatric sepsis and allowed identification of critical differences between infant and toddler sepsis. Moreover, we confirmed that combined Hp and Thbs1 is more infant-adapted and serves as a potential prognostic biomarker for poor outcome of infant sepsis, promoting the application of age-adapted precision medicine in pediatric sepsis.

2021-11-01 | PXD026656 | Pride

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