Objectives: Long non-coding RNAs (lncRNAs) were involved in the development and regulation of necrotizing enterocolitis (NEC) in premature infants. To investigate the changes of lncRNA expression profile in intestinal tissues of NEC for its possible mechanisms.
Methods: Intestinal samples were collected from 11 patients with NEC who needed surgery(the NEC group), and 7 from neonatal non-NEC patients with surgery (the Control group).LncRNA's changes in intestinal samples (3 in the Control group and 3 in the NEC group) were analyzed with high-throughput sequencing.Part of the remaining samples were detected by real-time polymerase chain reaction (real-time PCR), and the results were used to validate the results of high-throughput sequencing. Gene Ontology (GO) analysis and KEGG signaling pathway analysis were performed on differentially expressed genes.
Results: There were 5 257 different lncRNAs between the control group and the NEC group. The results of up-regulated lncRNAs (NONHSAG008675.3, NONHSAG020715.2, NONHSAG038187.2) and down-regulated lncRNA (NONHSAG028744.3) were confirmed to be consistent with the results of high-throughput sequencing. Expressions of DUOX2, IL-6, TNF, and SAA1 were up-regulated in intestinal tissues of NEC. GO analysis showed that the different lncRNAs were involved in regulation of stimulation, molecular junction and function, and signal transduction and transcription. KEGG analysis identified mainly biological pathways involved in inflammatory bowel disease, PI3K-Akt, NF-κB, etc.
Conclusions: LncRNAs might be involved in the pathogenesis of NEC and the inflammation-related lncRNAs may be one of the key factors.
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| http://dx.doi.org/10.11817/j.issn.1672-7347.2020.190657 | DOI Listing |
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