Open Access

Possible role of the Ec peptide of IGF‑1Ec in cartilage repair

  • Authors:
    • Nikolaos Armakolas
    • Andreas Dimakakos
    • Athanasios Armakolas
    • Athanasios Antonopoulos
    • Michael Koutsilieris
  • View Affiliations

  • Published online on: August 12, 2016     https://doi.org/10.3892/mmr.2016.5627
  • Pages: 3066-3072
  • Copyright: © Armakolas et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The Ec peptide (PEc) of insulin-like growth factor 1 Ec (IGF-1Ec) induces human mesenchymal stem cell (hMSC) mobilization and activates extracellular signal‑regulated kinase 1/2 (ERK 1/2) in various cells. The aim of the present study was to examine the effects of PEc on the mobilization and differentiation of hMSCs, as well as the possibility of its implementation in combination with transforming growth factor β1 (TGF‑β1) for cartilage repair. The effects of the exogenous administration of PEc and TGF‑β1, alone and in combination, on hMSCs were assessed using a trypan blue assay, reverse transcription-quantitative polymerase chain reaction, western blot analysis, Alcian blue staining, wound healing assays and migration/invasion assays. It was determined that PEc is involved in the differentiation process of hMSCs towards hyaline cartilage. Treatment of hMSCs with either PEc, TGF‑β1 or both, demonstrated comparable cartilage matrix deposition. Furthermore, treatment with PEc in combination with TGF‑β1 was associated with a significant increase in hMSC mobilization when compared with treatment with TGF‑β1 or PEc alone (P<0.05). Thus, PEc appears to facilitate in vitro hMSC mobilization and differentiation towards chondrocytes, enhancing the role of TGF‑β1.
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October-2016
Volume 14 Issue 4

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

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Spandidos Publications style
Armakolas N, Dimakakos A, Armakolas A, Antonopoulos A and Koutsilieris M: Possible role of the Ec peptide of IGF‑1Ec in cartilage repair. Mol Med Rep 14: 3066-3072, 2016
APA
Armakolas, N., Dimakakos, A., Armakolas, A., Antonopoulos, A., & Koutsilieris, M. (2016). Possible role of the Ec peptide of IGF‑1Ec in cartilage repair. Molecular Medicine Reports, 14, 3066-3072. https://doi.org/10.3892/mmr.2016.5627
MLA
Armakolas, N., Dimakakos, A., Armakolas, A., Antonopoulos, A., Koutsilieris, M."Possible role of the Ec peptide of IGF‑1Ec in cartilage repair". Molecular Medicine Reports 14.4 (2016): 3066-3072.
Chicago
Armakolas, N., Dimakakos, A., Armakolas, A., Antonopoulos, A., Koutsilieris, M."Possible role of the Ec peptide of IGF‑1Ec in cartilage repair". Molecular Medicine Reports 14, no. 4 (2016): 3066-3072. https://doi.org/10.3892/mmr.2016.5627