The dysregulation and regulatory mechanism of long non-coding RNA LBX2-AS1 in children with epilepsy.

Abstract

Background: Epilepsy is a long-lasting neurological condition distinguished by recurring seizures, and related to oxidative stress and inflammation. This study investigates the effects of long non-coding RNA LBX2-AS1 on childhood epilepsy.

Methods: There were 165 epilepsy epileptic and 206 healthy children enrolled in this study. Relative LBX2-AS1, miR-873-5p, and HNRNPK expression levels were assessed using RT-PCR. Diagnostic value of LBX2-AS1 was evaluated by ROC curve. Epilepsy cell model was constructed in HT22 cells. Cell viability was assessed by CCK-8 kit. Cell apoptosis was analyzed by flow cytometer. Oxidative stress factors (SOD, GSH, LDH) and inflammatory cytokines (IL-1β, IL-6, TNF-α) were evaluated by ELISA kits. Target association was validated using dual-luciferase reporter assays. Function analysis for miR-873-5p target genes was analyzed by GO, KEGG, and PPI.

Results: LBX2-AS1 was upregulated in epilepsy and had a high diagnostic value for epilepsy (AUC = 0.880, sensitivity = 80.6%, specificity = 82.0%, cutoff value = 1.14). The upregulation of LBX2-AS1 in cell model might decrease cell viability, increase apoptosis, and elevate oxidative stress and inflammation via negatively controlled miR-873-5p. Target genes of miR-873-5p were enriched in pathways related to oxidative stress, inflammation responses, and magnesium ion transmembrane transporter activity of neuronal cells. HNRNPK had the highest interaction degree with other target genes.

Conclusion: LBX2-AS1 is upregulated in epilepsy and is associated with increased oxidative stress, inflammation, and apoptosis via mediating miR-873-5p/HNRNPK axis in epilepsy cell model.