Epidermal growth factor improves the migration and contractility of aged fibroblasts cultured on 3D collagen matrices

  • Authors:
    • Daehwan Kim
    • So Young Kim
    • Seog Kyun Mun
    • Sangmyung Rhee
    • Beom Joon Kim
  • View Affiliations

  • Published online on: February 3, 2015     https://doi.org/10.3892/ijmm.2015.2088
  • Pages: 1017-1025
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Abstract

Epidermal growth factor (EGF) plays a critical role in fibroblasts by stimulating the production of collagen and supports cell renewal through the interaction between keratinocytes and fibroblasts. It is well known that the contractile activity of fibroblasts is required for the remodeling of the extracellular matrix (ECM), which contributes to skin elasticity. However, the role of EGF in the contraction of aged fibroblasts under 3-dimensional (3D) culture conditions is not yet fully understood. In the present study, we demonstrated that young fibroblasts spread and proliferated more rapidly than aged fibroblasts under 2-dimensional (2D) culture conditions. Cell migration assay using a nested collagen matrix revealed that the migration of young fibroblasts was also greater than that of aged fibroblasts under 3D culture conditions. However, the addition of recombinant human EGF (rhEGF) resulted in the enhanced migration of aged fibroblasts; the migration rate was similar to that of the young fibroblasts. The aged fibroblasts showed decreased cluster formation compared with the young fibroblasts on the collagen matrix, which was improved by the addition of rhEGF. Furthermore, cell contraction assay revealed that the basal contractility of the aged fibroblasts was lower than that of the young fibroblasts; however, following treatment with rhEGF, the contractility was restored to levels similar or even higher to those of the young fibroblasts. Taken together, our results suggest that rhEGF is a potential renewal agent that acts to improve the migration and contraction of aged fibroblasts more efficiently than young fibroblasts under 3D culture conditions; thus, EGF may have valuable regenerative effects on aged skin.
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April-2015
Volume 35 Issue 4

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

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Spandidos Publications style
Kim D, Kim SY, Mun SK, Rhee S and Kim BJ: Epidermal growth factor improves the migration and contractility of aged fibroblasts cultured on 3D collagen matrices. Int J Mol Med 35: 1017-1025, 2015
APA
Kim, D., Kim, S.Y., Mun, S.K., Rhee, S., & Kim, B.J. (2015). Epidermal growth factor improves the migration and contractility of aged fibroblasts cultured on 3D collagen matrices. International Journal of Molecular Medicine, 35, 1017-1025. https://doi.org/10.3892/ijmm.2015.2088
MLA
Kim, D., Kim, S. Y., Mun, S. K., Rhee, S., Kim, B. J."Epidermal growth factor improves the migration and contractility of aged fibroblasts cultured on 3D collagen matrices". International Journal of Molecular Medicine 35.4 (2015): 1017-1025.
Chicago
Kim, D., Kim, S. Y., Mun, S. K., Rhee, S., Kim, B. J."Epidermal growth factor improves the migration and contractility of aged fibroblasts cultured on 3D collagen matrices". International Journal of Molecular Medicine 35, no. 4 (2015): 1017-1025. https://doi.org/10.3892/ijmm.2015.2088