MyoD Overexpressed Equine Adipose-Derived Stem Cells Enhanced Myogenic Differentiation Potential

Cell Transplantation
Soo-Eun SungKyu-Shik Jeong

Abstract

Mesenchymal stem cells could potentially be used in the clinical treatment of muscle disorders and muscle regeneration. Adipose-derived stem cells (ADSCs) can be easily isolated from adipose tissue, as opposed to stem cells of other tissues. We believe that cell therapy using ADSCs could be applied to muscle disorders in horses and other species. We sought to improve the myogenic differentiation potential of equine ADSCs (eqADSCs) using a MyoD lentiviral vector. MyoD lentiviruses were transduced into eqADSCs and selected using puromycin. Cells were cultured in differentiation media containing 5% horse serum, and after 5 days the MyoD-transduced cells differentiated into myogenic cells (MyoD-eqADSCs). Using green fluorescent protein (GFP), MyoD-eqADSCs were purified and transplanted into the tibialis anterior muscles of mice after they were injured with the myotoxin notexin. The mice were sacrificed to examine any regeneration in the tibialis anterior muscle 4 weeks after the MyoD-eqADSCs were injected. The MyoD-eqADSCs cultured in growth media expressed murine and equine MyoD; however, they did not express late differentiation markers such as myogenin (MYOG). When cells were grown in differentiation media, the expression of MYO...Continue Reading

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