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계대 배양에 의한 인간 중간엽 줄기세포의 골 형성능

Other Titles
 Osteogenic Potential of Human Mesenchymal Stem Cells During Serial Subculture 
 선현진  ;  최연락  ;  이진우  ;  한수봉 
 Journal of Korean Orthopaedic Research Society (대한정형외과연구학회지), Vol.7(2) : 99-107, 2004 
Journal Title
 Journal of Korean Orthopaedic Research Society (대한정형외과연구학회지) 
Issue Date
Mesenchymal stem cell ; Subculture ; Osteoblast ; Differentiation
Purpose: The purpose of this study was to evaluate the osteogenic differentiation potential of human mesenchymal stem cells during serial subculture. Materials and Methods: Human bone marrow-derived MSCs were serially subcultured and then maintained in basal or osteogenic medium for 14 days. Then we performed FAC analysis, RT-PCR, alkaline phosphatase activity and stains. Results: Human MSCs had different morphologies, immunophenotypes, and growth rates that were correlated with the length of serial subculture. The phenotype changed from small spindle-shaped cells at passage 1 into large cuboidal or flattened cells at passage 7. The osteogenic capacity of human MSCs decreased during serial subculture. Using RT-PCR, the mRNA levels of bone-specific genes, such as cbfa1/runx2 and osteocalcin, decreased with increasing passage number. Strong positive staining was observed for ALP and Alizarin reds in osteogenic medium on day 14, but declined significantly with increasing passage number. Conclusion: We have shown that osteogenic potential of human MSCs decreased during serial subculture. This result can provide the helpful information to decide the timing of human MSC transplantation during in vitro culture expansion for treatment of bone defects and so on.
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1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Lee, Jin Woo(이진우) ORCID logo https://orcid.org/0000-0002-0293-9017
Hahn, Soo Bong(한수봉)
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