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3차원 Co-culture 시스템을 통한 BMSC의 NP-like Cell로의 분화
김동화,김수향,허수진,신지원,김영직,박소희,전재우,신정욱,Kim, D.H.,Kim, S.H.,Heo, S.J.,Shin, J.W.,Kim, Y.J.,Park, S.H.,Jun, J.W.,Shin, J.W. 대한의용생체공학회 2008 의공학회지 Vol.29 No.2
The goal of this study is to investigate the effect and potential of three-dimensional Co-culture of BMSCs (bone marrow stromal Cells) and NP (nucleus pulposus) Cells on the differentiation of BMSCs into NP-like Cells. The NP Cells and BMSCs were isolated and cultured from New Zealand White rabbits. The isolated NP Cells and BMSCs were prepared in different alginate beads. Those two types of beads were separated by a track-etched membrane of $3\;{\mu}m$ pore in a 6-well culture plate. No growth factors were used. In addition to these, NP and BMSC were cultured in the beads independently for control. The number of Cells in Co-culturing system was half of those in two control groups. Proliferation and production of glycosaminoglycan (GAG) were evaluated along with histological observation. The GAG production rate(GAG contents/Cell) of Co-cultured BMSCs were much higher than that of BMSCs cultured alone. The total amounts of GAG produced by BMSCs in Co-culturing system were larger than those produced by BMSCs in control group and were comparable with those produced by NP alone even the number of each Cell was half of BMSCs in Co-culturing system. This study showed the potential of differentiation of BMSCs into NP-like Cells through three-dimensional Co-culture system even without any chemical agents.
Aspiration technique을 이용한 MDA-MB-231과 MCF-10A의 물성치 측정 비교
박소희(S.H. Park),장지연(J.Y. Jang),김동화(D.H. Kim),허수진(S.J. Heo),전재우(J.W. Jun),김영직(Y.J. Kim),신정욱(J.W. Shin) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
In this paper, mechanical properties of MCF-10A and MDA-MB-231 have been measured by using micropipette-aspiration technique. Constants(k1, k2, viscosity) for the three-parameter viscosity model were determined based on the aspirated lengths. Instantaneous stiffuesses measured were 65.7±31.7 and 154.9 ± 90 for MDA-MB-231 and MCF-10A, respectively. These finding are expected to contribute to the areas related to the basic researches on metastasis and/or other potential techniques in diagnoses of the cancer.