Open Access

Identification of novel lncRNAs involved in the pathogenesis of childhood acute lymphoblastic leukemia

  • Authors:
    • Sheng Li
    • Hongliang Bian
    • Yizhi Cao
    • Chenxia Juan
    • Qian Cao
    • Guoping Zhou
    • Yongjun Fang
  • View Affiliations

  • Published online on: December 14, 2018     https://doi.org/10.3892/ol.2018.9832
  • Pages: 2081-2090
  • Copyright: © Li et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

This study aimed to explore novel long non‑coding RNAs (lncRNAs) and the underlying mechanisms involved in childhood acute lymphoblastic leukemia (cALL). The GSE67684 dataset was downloaded from the Gene Expression Omnibus. Differentially expressed genes (DEGs) and lncRNAs (DELs) between Days 0, 8, 15 and 33 were isolated using random variance model corrective analysis of variance. Overlapping DEGs and DELs were clustered using Cluster 3.0. Bio‑functional enrichment analysis was performed using Gene Ontology (GO) and the Kyoto Encyclopedia of Genes and Genomes (KEGG). Interactions between lncRNAs and mRNAs were calculated using dynamic simulations, and interactions among mRNAs were predicted using the STRING database. lncRNA‑mRNA and protein‑protein interaction (PPI) networks were visualized using Cytoscape. Subsequently, the expression levels of lncRNAs in biological samples from children with or without cALL were validated using reverse transcription‑quantitative polymerase chain reaction (RT‑qPCR). A total of 593 overlapping DEGs and 21 DELs were identified. After clustering, Profile 26 exhibited a continuously increasing temporal trend, whereas Profile 1 exhibited a continuous decreasing trend. Upregulated DEGs were significantly enriched in 1,825 GO terms and 166 KEGG pathways, whereas downregulated DEGs were significantly enriched in 196 GO terms and 90 KEGG pathways. The lncRNAs NONHSAT027612.2 and NONHSAT134556.2 were the top two regulators in the lncRNA‑mRNA network. Toll‑like receptor 4, cathepsin G, nucleotide‑binding oligomerization domain containing 2 and cathepsin S may be considered the hub genes of the PPI network. RT‑qPCR results indicated that the expression levels of the lncRNAs NONHSAT027612.2 and NONHSAT134556.2 were significantly elevated in the blood and bone marrow of patients with cALL compared with the controls. In conclusion, the lncRNAs NONHSAT027612.2 and NONHSAT134556.2 may serve important roles in the pathogenesis of cALL via regulating immune response‑associated pathways.
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February-2019
Volume 17 Issue 2

Print ISSN: 1792-1074
Online ISSN:1792-1082

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Copy and paste a formatted citation
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Spandidos Publications style
Li S, Bian H, Cao Y, Juan C, Cao Q, Zhou G and Fang Y: Identification of novel lncRNAs involved in the pathogenesis of childhood acute lymphoblastic leukemia. Oncol Lett 17: 2081-2090, 2019
APA
Li, S., Bian, H., Cao, Y., Juan, C., Cao, Q., Zhou, G., & Fang, Y. (2019). Identification of novel lncRNAs involved in the pathogenesis of childhood acute lymphoblastic leukemia. Oncology Letters, 17, 2081-2090. https://doi.org/10.3892/ol.2018.9832
MLA
Li, S., Bian, H., Cao, Y., Juan, C., Cao, Q., Zhou, G., Fang, Y."Identification of novel lncRNAs involved in the pathogenesis of childhood acute lymphoblastic leukemia". Oncology Letters 17.2 (2019): 2081-2090.
Chicago
Li, S., Bian, H., Cao, Y., Juan, C., Cao, Q., Zhou, G., Fang, Y."Identification of novel lncRNAs involved in the pathogenesis of childhood acute lymphoblastic leukemia". Oncology Letters 17, no. 2 (2019): 2081-2090. https://doi.org/10.3892/ol.2018.9832