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논문 기본 정보

자료유형
학술저널
저자정보
김유미 (한국체육대학교) 진준장 (경희대학교 고황의학연구소) 이삼준 (동명대학교) 서태범 (제주대학교) 지은상 (경희대학교)
저널정보
한국운동재활학회 Journal of exercise rehabilitation Journal of exercise rehabilitation Vol.14 No.3
발행연도
2018.1
수록면
335 - 340 (6page)

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Transplantation of bone marrow stromal cells (BMSCs) has been known as one of the effective therapeutic methods for functional recov-ery of spinal cord injury (SCI). Treadmill exercise also facilitates the functional recovery of SCI. Previously, we reported that combination of BMSCs transplantation with treadmill exercise potentiated the locomo-tor function in SCI rats. In the present study, we investigated whether recovery effect of BMSCs transplantation or treadmill exercise appears through the brain-derived neurotrophic factor (BDNF)-extracellular sig-nal–regulated kinases 1/2 (ERK1/2) pathway. The spinal cord contusion injury was performed at the T9-T10 level using the impactor. Cultured BMSCs were transplanted directly into the lesion 1 week after SCI. Treadmill exercise was performed 6 days per a week for 6 weeks. Western blot for Bax, Bcl-2, BDNF, tyrosine kinase B (TrkB), and phos-phorylated ERK1/2 (p-ERK1/2), phosphorylated JNK was performed. In the present results, combination of BMSCs transplantation with tread-mill exercise potently decreased Bax expression, potently increased Bcl-2 expression, and potently enhanced BDNF and TrkB expressions in the injured spinal cord. Combination of BMSCs transplantation with treadmill exercise further facilitated p-ERK1/2 and p-c-Jun expression levels. The present findings demonstrated the synergistic effect of treadmill exercise on neuroregenerative effect of BMSCs transplanta-tion appeared through the activation of BDNF-ERK1/2 pathway in SCI.

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