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논문 기본 정보

자료유형
학술저널
저자정보
김활란 (아주대학교) 김지영 (인하대학교) 박소라 (인하대학교) 민병현 (아주대학교) 최병현 (인하대학교)
저널정보
한국조직공학과 재생의학회 조직공학과 재생의학 조직공학과 재생의학 제15권 제5호
발행연도
2018.1
수록면
649 - 659 (11page)

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BACKGROUND: Stem cell therapy requires a serum-free and/or chemically-defined medium for commercialization, but it is difficult to find one that supports long-term expansion of cells without compromising their stemness, particularly for novel stem cells. METHODS: In this study, we tested the efficiency of StemPro MSC SFM Xeno Free (SFM-XF), a serum-free medium, for the long-term expansion of human fetal cartilage-derived progenitor cells (hFCPCs) from three donors in comparison to that of the conventional a-Modified Eagle’s Medium (a-MEM) supplemented with 10% fetal bovine serum (FBS). RESULTS: We found that SFM-XF supported the expansion of hFCPCs for up to 28–30 passages without significant changes in the doubling time, while a-MEM with 10% FBS showed a rapid increase in doubling time at 10–18 passages depending on the donor. Senescence of hFCPCs was not observed until passage 10 in both media but was induced in approximately 15 and 25% of cells at passage 20 in SFM-XF and a-MEM with 10% FBS, respectively. The colony forming ability of hFCPCs in SFX-XF was also comparable to that in a-MEM with 10% FBS. hFCPCs expressed pluripotency genes like Oct-4, Sox-2, Nanog, SCF, and SSEA4 at passage 20 and 31 in SFM-XF; however, this was not observed when cells were cultured in a-MEM with 10% FBS. The ability of hFCPCs to differentiate into three mesodermal lineages decreased gradually in both media but it was less significant in SFM-XF. Finally we found no chromosomal abnormality after long-term culture of hFCPCs until passage 17 by karyotype analysis. CONCLUSION: These results suggest that SFM-XF supports the long-term expansion of hFCPCs without significant phenotypic and chromosomal changes. This study have also shown that hFCPCs can be mass-produced in vitro, proving their commercial value as a novel source for developing cell therapies.

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