成人前脂肪细胞的原代培养

目的 探索人前脂肪细胞的原代培养方法。方法 取成人的腹部纯脂肪颗粒,采用原代消化细胞培养法培养出梭形细胞,对培养细胞进行形态学研究,测定生长曲线并用油红O脂肪染色法进行染色及定性。结果 培养出的梭形细胞成分均一,增殖旺盛,分化率高,经动态形态学观察、生长曲线测定及油红O脂肪染色法测定,证明是功能活跃的前脂肪细胞。结论 在成熟的脂肪组织中存在着可以增殖并分化成熟、形成脂肪组织的前脂肪细胞。组织工程化的脂肪组织是修复软组织缺损的最佳填充材料,该实验为脂肪组织工程的发展和应用打下了一定的基础。

Primary culture of preadipocytes from human adults

Objective To establish a method for primary culture of human preadipocyte as the seed cells for adipose tissue engineering. Methods Fibroblast-like cells were cultured from adult human abdominal adipose tissue. The morphological changes of the cultured cells were observed and the growth curve drawn. The intracytoplasmic lipid of the cultured cells was determined using oil red O staining. Results The cultured fibroblast-like cells showed highly homogeneous appearance with active proliferation, and could differentiate into mature adipocytes. Oil red O staining and morphological and biological observation verified these cells as preadipocytes with accumulation of lipid droplets in the cytoplasm. Extraction of the intracytoplasmic lipid stained with oil red O suggested a rapid increase in the intracytoplasmic lipid content on the 9th day of inoculation, which peaked on day 18. Conclusions Preadipocytes are present in mature human adipose tissue and possess the potential to proliferate and differentiate into mature adipocytes. These homogeneous preadipocytes with good proliferating activity can be harvested through primary cell culture.