microRNA and gene networks in human laryngeal cancer

Zhang,Fengyu; Xu,Zhiwen; Wang,Kunhao; Sun,Linlin; Liu,Genghe; Han,Baixu

doi:10.3892/etm.2015.2825

microRNA and gene networks in human laryngeal cancer

Authors:
- Fengyu Zhang
- Zhiwen Xu
- Kunhao Wang
- Linlin Sun
- Genghe Liu
- Baixu Han
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Affiliations: College of Computer Science and Technology, Jilin University, Changchun, Jilin 130012, P.R. China
Published online on: October 23, 2015 https://doi.org/10.3892/etm.2015.2825
Pages: 2245-2252

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Abstract

Genes and microRNAs (miRNAs) are considered to be key biological factors in human carcinogenesis. To date, considerable data have been obtained regarding genes and miRNAs in cancer; however, the regulatory mechanisms associated with the genes and miRNAs in cancer have yet to be fully elucidated. The aim of the present study was to use the key genes and miRNAs associated with laryngeal cancer (LC) to construct three regulatory networks (differentially expressed, LC‑related and global). A network topology of the development of LC, involving 10 differentially expressed miRNAs and 55 differentially expressed genes, was obtained. These genes exhibited multiple identities, including target genes of miRNA, transcription factors (TFs) and host genes. The key regulatory interactions were determined by comparing the similarities and differences among the three networks. The nodes and pathways in LC, as well as the association between each pair of factors within the networks, such as TFs and miRNA, miRNA and target genes and miRNA and its host gene, were discussed. The mechanisms of LC involved certain key pathways featuring self‑adaptation regulation and nodes without direct predecessors or successors. The findings of the present study have further elucidated the pathogenesis of LC and are likely to be beneficial for future research into LC.

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