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Jung Mook Choi  (Choi JM) 1 Article
Isolation of Density Enrichment Fraction of Adipose-Derived Stem Cells from Stromal Vascular Fraction by Gradient Centrifugation Method.
Min Kyung Kim, Yong Soon Park, Hee Soon Park, Jung Mook Choi, Won Jun Kim, Se Eun Park, Eun Jung Rhee, Cheol Young Park, Won Young Lee, Ki Won Oh, Sung Woo Park, Sun Woo Kim, Kwang Sik Suh, Jeong Taek Woo
Endocrinol Metab. 2010;25(2):103-109.   Published online June 1, 2010
DOI: https://doi.org/10.3803/EnM.2010.25.2.103
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BACKGROUND
Adipose tissues include multipotent cells, the same as bone marrow-derived mesenchymal stem cells. The stromal vascular fractions (SVFs) from adipose tissues represent a heterogeneous cell population. The purpose of this study was to isolate and purify adipose-derived stem cells (ASCs) in SVFs by the density gradient method. METHODS: SVFs were extracted from the subcutaneous, epididymal, mesenteric and retroperitoneal adipose tissue of 8 weeks old male Sprague-Dawley rats (n = 15) and these were separated into 4 layers according to a Nycodenz gradient (Fx-1: < 11%, Fx-2: 11-13%, Fx-3: 13-19% and Fx-4: 19-30%). The post-confluent SVFs were cultured in adipogenic medium for 2 days, in insulin medium for 2 days and in 10% fetal bovine serum medium for 5 days. To observe lipid droplets in SVFs, we performed Oil Red O staining. RESLTS: The SVFs' cellular fractions (Fx-1, Fx-2, Fx-3 and Fx-4) were isolated by density gradient centrifugation from the adipose tissues of rats. The SVFs extracted to fraction 3 (Fx-3) had the most abundant cells compared to that of the other fractions. However fraction 1 (Fx-1) or 2 (Fx-2) had a superior ability to make lipid droplets. The adipogenic differentiation of Fx-1 or 2 was higher than that of the unfractionated cells. The SVFs extracted from retroperitoneal adipose tissue had the highest efficiency for adipogenic differentiation, whereas the SVFs from mesenteric adipose tissue did not differentiate. CONCLUSION: This density gradient fractionated method leads to efficient isolation and purification of cells with the characteristics of ASCs.

Citations

Citations to this article as recorded by  
  • Embolic Infarction Presented after Intravenous Injection of Stromal Vascular Fraction
    Jin Young Seo, Ju-Hun Lee, Hong-Ki Song, Jong Seok Bae, Yerim Kim
    Journal of Neurosonology and Neuroimaging.2018; 10(2): 181.     CrossRef
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