• 1. Department of Burn and Plastic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
  • 2. Department of Plastic Surgery, the First Affiliated Hospital, Chongqing Medical University, Chongqing 400042, P. R. China;
LIU Xiaoxue, Email: liuxiaoxue0930@126.com; CEN Ying, Email: cenying0141@163.com
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Objective  To investigate the possibility of enhancing the inducing rate of adipose-derived stem cells (ASCs) into epidermal cells in the medium containing all-trans retinoic acid (ATRA) by supplementing with HaCaT condition medium. Methods  ASCs were isolated and identified by detecting the expression of CD34, CD45, CD73, CD90, and CD105 with flow cytometry and differentiating into adipose and osteoblast lineage in the induction medium. The air-liquid interface cell culture model was established with the Transwell Room. The induction medium A contained ATRA, epidermal growth factor (EGF), and keratinocyte growth factor (KGF), while the induction medium B contained ATRA, EGF, KGF, and HaCaT condition medium. Experiment was divided into three groups cultured for 12 days: induction medium A (group A), induction medium B (group B), basic medium (group C). The epidermal cell surface markers: cytokeratin (CK) 14, 15, 16, 19 (Pan-CK) were detected by flow cytometry and CK14 were identified by immunofluorescence stain. Results  After induction for 12 days, flow cytometry showed that the positive rate of Pan-CK in group B [(22.0±3.5)%] was higher than that in group A [(11.9±2.7)%], which were both higher than that in group C [(1.1±0.3)%], and the differences were statistical significantly (P<0.01). Immunofluorescence stain showed that the positive rate of CK14 in group B was higher than that in group A [(19.5±7.0)%vs. (10.8±5.7)%, P<0.01], and the expression of CK14 was negative in group C. Conclusion  HaCaT condition medium can enhance the ability of ASCs differentiation into epidermal cells in the culture medium containing ATRA.

Citation: LIN Wentao, LIU Xiaoxue, LIU Yong, CHEN Junjie, CEN Ying. Investigation on HaCaT cell condition medium combined with all-trans-retinoic acid initiating differentiation of human adipose-derived stem cells into epidermal cells. West China Medical Journal, 2018, 33(3): 325-331. doi: 10.7507/1002-0179.201611154 Copy

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