[No authors listed]
Nowadays, neonatal sepsis has gradually become a global problem for its high incidence and increasing mortality. Previous studies have reported that miR-15a and miR-16 are two important modulators in neonatal sepsis. However, the upstream molecular mechanism of miR-15a/16 cluster is still mysterious. This study aims to explore a lncRNA can bind with miR-15a/16 in neonatal sepsis. Microarray analysis helped us found top ten lncRNAs which were downregulated in neonatal sepsis serum. Among these ten lncRNAs, SNHG16 was uncovered to significantly downregulated both miR-15a and miR-16. According to the result of subcellular fractionation assay, SNHG16 was mainly located in the cytoplasm of RAW264.7 cell, indicating the potential ceRNA role of SNHG16. Mechanism investigations revealed that SNHG16 could act as a ceRNA to upregulate TLR4 which is the target mRNA of miR-15a/16 cluster. At last, rescue assays demonstrated that SNHG16 reversed the effects of miR-15a/16 on LPS-induced inflammatory pathway. In summary, SNHG16 can act as a ceRNA to modulate miR-15a/16 cluster, thereby affecting LSP-induced inflammatory pathway which was downregulated by miR-15a/16 cluster.
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