Open Access

Autophagy induction in the skeletal myogenic differentiation of human tonsil-derived mesenchymal stem cells

  • Authors:
    • Saeyoung Park
    • Yoonyoung Choi
    • Namhee Jung
    • Jieun Kim
    • Seiyoon Oh
    • Yeonsil Yu
    • Jung-Hyuck Ahn
    • Inho Jo
    • Byung-Ok Choi
    • Sung-Chul Jung
  • View Affiliations

  • Published online on: February 20, 2017     https://doi.org/10.3892/ijmm.2017.2898
  • Pages: 831-840
  • Copyright: © Park et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

Metrics: Total Views: 0 (Spandidos Publications: | PMC Statistics: )
Total PDF Downloads: 0 (Spandidos Publications: | PMC Statistics: )


Abstract

Mesenchymal stem cells (MSCs) are capable of self-renewal and differentiation and are thus a valuable source for the replacement of diseased or damaged organs. Previously, we reported that the tonsils can be an excellent reservoir of MSCs for the regeneration of skeletal muscle (SKM) damage. However, the mechanisms involved in the differentiation from tonsil-derived MSCs (T-MSCs) to myocytes via myoblasts remain unclear. To clarify these mechanisms, we analyzed gene expression profiles of T-MSCs during differentiation into myocytes compared with human skeletal muscle cells (hSKMCs). Total RNA was extracted from T-MSCs, T-MSC-derived myoblasts and myocytes, and hSKMCs and was subjected to analysis using a microarray. Microarray analysis of the three phases of myogenic differentiation identified candidate genes associated with myogenic differentiation. The expression pattern of undifferentiated T-MSCs was distinguishable from the myogenic differentiated T-MSCs and hSKMCs. In particular, we selected FNBP1L, which among the upregulated genes is essential for antibacterial autophagy, since autophagy is related to SKM metabolism and myogenesis. T-MSCs differentiated toward myoblasts and skeletal myocytes sequentially, as evidenced by increased expression of autophagy-related markers (including Beclin-1, LC3B and Atg5) and decreased expression of Bcl-2. Furthermore, we reconfirmed that autophagy has an effect on the mechanism of skeletal myogenic differentiation derived from T-MSCs by treatment with 5-azacytidine and bafilomycin A1. These data suggest that the transcriptome of the T-MSC-derived myocytes is similar to that of hSKMCs, and that autophagy has an important role in the mechanism of myogenic differentiation of T-MSCs.
View Figures
View References

Related Articles

Journal Cover

April-2017
Volume 39 Issue 4

Print ISSN: 1107-3756
Online ISSN:1791-244X

Sign up for eToc alerts

Recommend to Library

Copy and paste a formatted citation
x
Spandidos Publications style
Park S, Choi Y, Jung N, Kim J, Oh S, Yu Y, Ahn J, Jo I, Choi B, Jung S, Jung S, et al: Autophagy induction in the skeletal myogenic differentiation of human tonsil-derived mesenchymal stem cells. Int J Mol Med 39: 831-840, 2017
APA
Park, S., Choi, Y., Jung, N., Kim, J., Oh, S., Yu, Y. ... Jung, S. (2017). Autophagy induction in the skeletal myogenic differentiation of human tonsil-derived mesenchymal stem cells. International Journal of Molecular Medicine, 39, 831-840. https://doi.org/10.3892/ijmm.2017.2898
MLA
Park, S., Choi, Y., Jung, N., Kim, J., Oh, S., Yu, Y., Ahn, J., Jo, I., Choi, B., Jung, S."Autophagy induction in the skeletal myogenic differentiation of human tonsil-derived mesenchymal stem cells". International Journal of Molecular Medicine 39.4 (2017): 831-840.
Chicago
Park, S., Choi, Y., Jung, N., Kim, J., Oh, S., Yu, Y., Ahn, J., Jo, I., Choi, B., Jung, S."Autophagy induction in the skeletal myogenic differentiation of human tonsil-derived mesenchymal stem cells". International Journal of Molecular Medicine 39, no. 4 (2017): 831-840. https://doi.org/10.3892/ijmm.2017.2898