Open Access

Slow skeletal muscle troponin T, titin and myosin light chain 3 are candidate prognostic biomarkers for Ewing's sarcoma

  • Authors:
    • Yajun Deng
    • Qiqi Xie
    • Guangzhi Zhang
    • Shaoping Li
    • Zuolong Wu
    • Zhanjun Ma
    • Xuegang He
    • Yicheng Gao
    • Yonggang Wang
    • Xuewen Kang
    • Jing Wang
  • View Affiliations

  • Published online on: November 4, 2019     https://doi.org/10.3892/ol.2019.11044
  • Pages: 6431-6442
  • Copyright: © Deng et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Ewing's sarcoma (ES) is a common malignant bone tumor in children and adolescents. Although great efforts have been made to understand the pathogenesis and development of ES, the underlying molecular mechanism remains unclear. The present study aimed to identify new key genes as potential biomarkers for the diagnosis, targeted therapy or prognosis of ES. mRNA expression profile chip data sets GSE17674, GSE17679 and GSE45544 were downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) were screened using the R software limma package, and functional and pathway enrichment analyses were performed using the enrichplot package and GSEA software. The NetworkAnalyst online tool, as well as Cytoscape and its plug‑ins cytoHubba and NetworkAnalyzer, were used to construct a protein‑protein interaction network (PPI) and conduct module analysis to screen key (hub) genes. LABSO COX regression and overall survival (OS) analysis of the Hub genes were performed. A total of 211 DEGs were obtained by integrating and analyzing the three data sets. The functions and pathways of the DEGs were mainly associated with the regulation of small‑molecule metabolic processes, cofactor‑binding, amino acid, proteasome and ribosome biosynthesis in eukaryotes, as well as the Rac1, cell cycle and P53 signaling pathways. A total of one important module and 20 hub genes were screened from the PPI network using the Maximum Correlation Criteria algorithm of cytoHubba. LASSO COX regression results revealed that titin (TTN), fast skeletal muscle troponin T, skeletal muscle actin α‑actin, nebulin, troponin C type 2 (fast), myosin light‑chain 3 (MYL3), slow skeletal muscle troponin T (TNNT1), myosin‑binding protein C1 slow‑type, tropomyosin 3 and myosin heavy‑chain 7 were associated with prognosis in patients with ES. The Kaplan‑Meier curves demonstrated that high mRNA expression levels of TNNT1 (P<0.001), TTN (P=0.049), titin‑cap (P=0.04), tropomodulin 1 (P=0.011), troponin I2 fast skeletal type (P=0.021) and MYL3 (P=0.017) were associated with poor OS in patients with ES. In conclusion, the DEGs identified in the present study may be key genes in the pathogenesis of ES, three of which, namely TNNT1, TTN and MYL3, may be potential prognostic biomarkers for ES.
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December-2019
Volume 18 Issue 6

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

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Spandidos Publications style
Deng Y, Xie Q, Zhang G, Li S, Wu Z, Ma Z, He X, Gao Y, Wang Y, Kang X, Kang X, et al: Slow skeletal muscle troponin T, titin and myosin light chain 3 are candidate prognostic biomarkers for Ewing's sarcoma. Oncol Lett 18: 6431-6442, 2019
APA
Deng, Y., Xie, Q., Zhang, G., Li, S., Wu, Z., Ma, Z. ... Wang, J. (2019). Slow skeletal muscle troponin T, titin and myosin light chain 3 are candidate prognostic biomarkers for Ewing's sarcoma. Oncology Letters, 18, 6431-6442. https://doi.org/10.3892/ol.2019.11044
MLA
Deng, Y., Xie, Q., Zhang, G., Li, S., Wu, Z., Ma, Z., He, X., Gao, Y., Wang, Y., Kang, X., Wang, J."Slow skeletal muscle troponin T, titin and myosin light chain 3 are candidate prognostic biomarkers for Ewing's sarcoma". Oncology Letters 18.6 (2019): 6431-6442.
Chicago
Deng, Y., Xie, Q., Zhang, G., Li, S., Wu, Z., Ma, Z., He, X., Gao, Y., Wang, Y., Kang, X., Wang, J."Slow skeletal muscle troponin T, titin and myosin light chain 3 are candidate prognostic biomarkers for Ewing's sarcoma". Oncology Letters 18, no. 6 (2019): 6431-6442. https://doi.org/10.3892/ol.2019.11044