Journal of Korean Neurosurgical Society

  • 제42권2호
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  • Pages.118-124
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  • 2007
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  • 2005-3711(pISSN)
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  • 1598-7876(eISSN)
대한신경외과학회 (The Korean Neurosurgical Society)
권호 표지

Differentiation of Human Adult Adipose Derived Stem Cell in vitro and Immunohistochemical Study of Adipose Derived Stem Cell after Intracerebral Transplantation in Rats

  • Ko, Kwang-Seok (Department of Neurosurgery St. Mary's Hospital The Catholic University of Korea) ;
  • Lee, Il-Woo (Department of Neurosurgery Daejeon St. Mary's Hospital The Catholic University of Korea) ;
  • Joo, Won-Il (Department of Neurosurgery St. Mary's Hospital The Catholic University of Korea) ;
  • Lee, Kyung-Jun (Department of Neurosurgery St. Mary's Hospital The Catholic University of Korea) ;
  • Park, Hae-Kwan (Department of Neurosurgery St. Mary's Hospital The Catholic University of Korea) ;
  • Rha, Hyung-Keun (Department of Neurosurgery St. Mary's Hospital The Catholic University of Korea)
  • 발행 : 2007.08.30
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초록

Objective : Adipose tissue is derived from the embryonic mesoderm and contains a heterogenous stromal cell population. Authors have tried to verify the characteristics of stem cell of adipose derived stromal cells (ADSCs) and to investigate immunohistochemical findings after transplantation of ADSC into rat brain to evaluate survival, migration and differentiation of transplanted stromal cells. Methods : First ADSCs were isolated from human adipose tissue and induced adipose, osseous and neuronal differentiation under appropriate culture condition in vitro and examined phenotypes profile of human ADSCs in undifferentiated states using flow cytometry and immunohistochemical study. Human ADSCs were transplanted into the healthy rat brain to investigate survival, migration and differentiation after 4 weeks. Results : From human adipose tissue, adipose stem cells were harvested and subcultured for several times. The cultured ADSCs were differentiated into adipocytes, osteoctye and neuron-like cell under conditioned media. Flow cytometric analysis of undifferentiated ADSCs revealed that ADSCs were positive for CD29, CD44 and negative for CD34, CD45, CD117 and HLA-DR. Transplanted human ADSCs were found mainly in cortex adjacent to injection site and migrated from injection site at a distance of at least 1 mm along the cortex and corpus callosum. A few transplanted cells have differentiated into neuron and astrocyte. Conclusion : ADSCs were differentiated into multilineage cell lines through transdifferentiation. ADSCs were survived and migrated in xenograft without immunosuppression. Based on this data, ADSCs may be potential source of stem cells for many human disease including neurologic disorder.

키워드

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