MicroRNA expression profile of surgical removed mandibular bone tissues from patients with mandibular prognathism.

Abstract

BACKGROUND:

Mandibular prognathism (MP) or skeletal class III malocclusion with a prognathic mandible is one of the most severe facial deformities. Recent work has revealed certain circulating microRNAs (miRNAs) are associated with MP, we conducted this study to characterize the miRNAs expression profile in surgically removed mandibular bone tissue in patients with MP and explored the role of miRNA regulation in the pathogenesis of MP.

METHODS:

Affymetrix GeneChip miRNA 3.0 Array was used to examine the miRNA expression in mandibular bone tissues from MP patients and control subjects. A variety of bioinformatic approaches were used to predict the target genes of the miRNAs, find the potential functions and pathways of the target genes, analyze their intersection with differentially expressed mRNAs, and establish miRNA-gene network.

RESULTS:

Eleven upregulated and 11 downregulated miRNAs with a fold change ≥ 2 and a P value <0.05 were identified in bone specimens of MP patients. A total of 3569 genes were predicted as targets of hsa-miR-10a-5p, hsa-miR-150-5p, hsa-miR-192-5p, hsa-miR-194-5p, hsa-miR-197-3p, hsa-miR-30 d-5p, hsa-miR-342-5p and hsa-miR-629-5p, hsa-miR-1202, and hsa-miR-638. The target genes were predicted to be involved in biological functions and signaling pathways related to osteogenesis. Hsa-miR-30 d-5p was the key node of miRNA-gene network.

CONCLUSIONS:

Our results indicated a possible association between the differentially expressed miRNAs and MP pathogenesis, and the precise mechanisms are needed to be further validated.

• Authors: Yulou Tian, Jie Liu, Xiaofeng Bai, Xuexin Tan, Yuming Cao, Ke Qin, Zhenjin Zhao, Yuanyuan Zhang
• Journal: The Journal of surgical research (J Surg Res) Vol. 198 Issue 1 Pg. 127-34 (Sep 2015) ISSN: 1095-8673 [Electronic] United States
• PMID: 26025627 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
• Copyright: Copyright © 2015 Elsevier Inc. All rights reserved.

Chemical References

• MicroRNAs

Topics

• Adult
• Gene Regulatory Networks
• Humans
• Mandible (metabolism)
• MicroRNAs (analysis)
• Oligonucleotide Array Sequence Analysis
• Principal Component Analysis
• Prognathism (etiology, genetics, surgery)
• Transcriptome