Biomolecules & Therapeutics

The Korean Society of Applied Pharmacology (한국응용약물학회)
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Adipose-Derived Stem Cell Coculturing Stimulates Integrin-Mediated Extracellular Matrix Adhesion of Melanocytes by Upregulating Growth Factors

  • Kim, Hyangmi (Department of Dermatology, Dongguk University Ilsan Hospital) ;
  • Yi, Nayoung (Department of Dermatology, Dongguk University Ilsan Hospital) ;
  • Do, Byung-Rok (Biotechnology Research Institute, Hurim BioCell Inc.) ;
  • Lee, Ai-Young (Department of Dermatology, Dongguk University Ilsan Hospital)
  • Received : 2018.10.23
  • Accepted : 2018.11.15
  • Published : 2019.03.01
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Abstract

Coculture with adipose-derived stem cells (ADSCs) can stimulate proliferation and migration of melanocytes. To enhance outcomes of skin disorders caused by melanocyte loss or death, mixed transplantation with ADSCs has been suggested. However, role of cocultured ADSCs in proliferation and migration of melanocytes remains unclear. This study determined the effect of ADSCs on production of growth factors and expression levels of intergrins in primary culture of adult human melanocytes with or without ADSCs and in nude mice grafted with such melanocytes. Higher amounts of growth factors for melanocytes, such as bFGF and SCF were produced and released from ADSCs by coculturing with melanocytes. Relative levels of integrins ${\beta}1$, ${\alpha}5$, and ${\alpha}6$ as well as adhesion to fibronectin and laminin were increased in melanocytes cocultured with ADSCs. Such increases were inhibited by neutralization of bFGF or SCF. Relative levels of bFGF, SCF and integrins were increased in nude mice skin after grafting with melanocyte+ADSC cocultures. Collectively, these results indicate that ADSCs can stimulate proliferation and migration of melanocytes by increasing expression of integrins in melanocytes through upregulation of production/release of melanocyte growth factors such as bFGF and SCF.

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References

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