Open Access

Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation

  • Authors:
    • Wen‑Ting Huang
    • Wei‑Luan Cen
    • Rong‑Quan He
    • You Xie
    • Yu Zhang
    • Ping Li
    • Ting‑Qing Gan
    • Gang Chen
    • Xiao‑Hua Hu
  • View Affiliations

  • Published online on: October 4, 2017     https://doi.org/10.3892/mmr.2017.7713
  • Pages:8781-8792
  • Copyright: © Huang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: PDF 0 views | HTML 0 views
0

Abstract

Our previous study demonstrated that the expression of miR‑146a‑5p was downregulated in non‑small cell lung cancer (NSCLC) tissue, which affected the progression and prognosis of patients with NSCLC. Thus, the present study was conducted to investigate the functional mechanism of miR‑146a‑5p in tumorigenesis and angiogenesis in NSCLC. Following the construction of a H460 NSCLC cell line in which miR‑146a‑5p was overexpressed via lentivirus transduction, the NSCLC chick embryo chorioallantoic membrane (CAM) model was established by transplanting miR‑146a‑5p‑overexpressing NSCLC cells into the CAM. Then, the size of the neoplasms within the CAM was measured, the vessel ratio was calculated, and the cellular morphology, metastasis and inflammation of tumor cell was observed using hematoxylin and eosin staining. The target genes of miR‑146a‑5p were predicted by 12 online software programs; these genes were then subjected to Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes pathway annotations using the Database for Annotation, Visualization and Integrated Discovery 6.7 as well as constructed into a protein interaction network using protein‑protein interaction from Search Tool for the Retrieval of Interacting Genes/Proteins. The xenograft tumor size and angiogenesis conditions of the miR‑146a‑5p‑overexpressing group (volume 6.340±0.066 mm3, vessel ratio 9.326±0.083) was obviously restricted (P<0.001) when compared with the low expression group (volume 30.13±0.06 mm3, vessel ratio 16.94±0.11). In addition, marked necrosis along with inflammatory cell infiltration was observed with the HE‑stained slices from the miR‑146a‑5p low expression group. Regarding the results of the target gene prediction, cancer and toll‑like receptor signaling were the two most significant pathways represented among the target genes, while JUN, EGFR and RAC1 were the most relevant proteins among the selected potential targets of miR‑146a‑5p. In a CAM xenograft tumor model, overexpression of miR‑146a‑5p inhibited the tumorigenesis and angiogenesis of an NSCLC cell line. miR‑146a‑5p may act as a tumor suppressor gene in NSCLC and have moderate prognostic value in lung cancer.

Related Articles

Journal Cover

December 2017
Volume 16 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

2016 Impact Factor: 1.692
Ranked #19/128 Medicine Research and Experimental
(total number of cites)

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
APA
Huang, W., Cen, W., He, R., Xie, Y., Zhang, Y., Li, P. ... Hu, X. (2017). Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation. Molecular Medicine Reports, 16, 8781-8792. https://doi.org/10.3892/mmr.2017.7713
MLA
Huang, W., Cen, W., He, R., Xie, Y., Zhang, Y., Li, P., Gan, T., Chen, G., Hu, X."Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation". Molecular Medicine Reports 16.6 (2017): 8781-8792.
Chicago
Huang, W., Cen, W., He, R., Xie, Y., Zhang, Y., Li, P., Gan, T., Chen, G., Hu, X."Effect of miR‑146a‑5p on tumor growth in NSCLC using chick chorioallantoic membrane assay and bioinformatics investigation". Molecular Medicine Reports 16, no. 6 (2017): 8781-8792. https://doi.org/10.3892/mmr.2017.7713