Abstract
The use of collagen in cell cultures promotes cell proliferation and differentiation, and it has been commercialized. In this study, we separated and purified collagen from adipose tissue discarded during liposuction and prepared collagen-coated dishes. After collagen was identified from human adipose tissue, type identification and quantification were performed using SDS-PAGE and FPLC. Collagen type I was used to coat culture dishes. Human skin fibroblasts and human adipose tissue-derived stem cells were seeded at a density of 2.5×105 cells/mL on prepared dishes at a collagen concentration of 3 mg/mL and cultured for 7 days. Cell viability was then measured and analyzed. The WST-1 assay was used to evaluate the results. The amount of collagen in 300 g of adipose tissue was 25.5 mg for type I, 41.4 mg for type III, 10.6 mg for type IV, 6.5 mg for type V, and 15 mg for type VI. The highest rates were observed for adipose stem cells cultured on human adipose tissue-derived collagen-coated dishes. In cell cultures, cell affinity was higher when cells and the substrate used were of the same origin, and affinity was stronger when the tissue of origin was the same.
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