Gene markers of fracture healing in early stage and the regulatory mechanism during the process using microarray analysis

Abstract

BackgroundThe aim of this study was to explore crucial markers and uncover the regulatory mechanisms of fracture healing in the early stage.MethodsGene expression profile of GSE45156 was downloaded, in which 3 fractured samples and 3 unfractured samples were used in our present study. Based on the threshold value, differentially expressed genes (DEGs) were selected between two kinds of samples using limma package in R. Enrichment analysis of these DEGs was performed by DAVID software. Furthermore, protein-protein interaction (PPI) network was established integrating information in STRING database, and visualized by Cytoscape software.ResultsWe identified a set of 960 DEGs including 509 up-regulated and 451 downregulated genes. Biological processes involving RNA splicing and cell cycle were significantly enriched for the up-regulated genes such as Snrpd2, Eftud2, Plk1 and Bub1b, whereas skeletal system development and bone development processes were predominant for down-regulated genes like Ubc. In the constructed PPI network, all the five genes were the predominant nodes, of which Snrpd2 was linked to Eftud2, while Bub1b was to interact with Plk1.ConclusionFive candidate genes crucial for indicating the process of fracture in early stage were identified. Eftud2, Snrpd2, Bub1b and Plk1 might function through the involvement of cell-cycle-related BP, while Ubc might influence the protein degradation during bone development. However, more experimental validations are needed to confirm these results.

Significance of Spliceosome-Related Genes in the Prediction of Prognosis and Treatment Strategies for Lung Adenocarcinoma

“…There are few studies on the clinical and prognostic effects of the SNRPD1 gene; however, some research on SNRPD1 in malignancies mostly focused on the discovery of molecular biological mechanisms [ 21 – 23 ]. Recent studies have found that SNRPD2 and SNRPD3, as RNA splicing factors, can inhibit the proliferation of breast cancer cells and laryngeal squamous carcinoma cells and participate in the study of cell cycle-related mechanisms during early fracture [ 24 , 25 ].…”