Full-thickness tissue engineered skin constructed with autogenic bone marrow mesenchymal stem cells (original) (raw)

Abstract

To explore the feasibility of repairing clinical cutaneous deficiency, autogenic bone marrow mesenchymal stem cells (BMSCs) were isolated and differentiated into epidermal cells and fibroblasts in vitro supplemented with different inducing factors and biomaterials to construct functional tissueengineered skin. The results showed that after 72 h induction, BMSCs displayed morphologic changes such as typical epidermal cell arrangement, from spindle shape to round or oval; tonofibrils, melanosomes and keratohyaline granules were observed under a transmission electronic microscope. The differentiated cells expressed epidermal stem cell surface marker CK19 (59.66% ± 4.2%) and epidermal cells differentiation marker CK10. In addition, the induced epidermal cells acquired the anti-radiation capacity featured by lowered apoptosis following exposure to UVB. On the other hand, the collagen microfibrils deposition was noticed under a transmission electronic microscope after differentiating into dermis fibroblasts; RT-PCR identified collagen type I mRNA expression in differentiated cells; radioimmunoassay detected the secretion of interleukin-6 (IL-6) and interleukin-8 (IL-8) (up to 115.06 pg/mL and 0.84 ng/mL, respectively). Further in vivo implanting BMSCs with scaffold material shortened skin wound repair significantly. In one word, autogenic BMSCs have the potential to differentiate into epidermal cells and fibroblasts in vitro, and show clinical feasibility acting as epidermis-like and dermis-like seed cells in skin engineering.

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Authors and Affiliations

  1. Laboratory of Stem Cells and Regenerative Medicine, Institute of Blood Transfusion, Academy of Military Medical Sciences, Beijing, 100850, China
    He LiJuan, Nan Xue, Wang YunFang, Guan LiDong, Bai CiXian, Shi ShuangShuang, Yuan HongFeng, Chen Lin, Liu DaQing & Pei XueTao

Authors

  1. He LiJuan
  2. Nan Xue
  3. Wang YunFang
  4. Guan LiDong
  5. Bai CiXian
  6. Shi ShuangShuang
  7. Yuan HongFeng
  8. Chen Lin
  9. Liu DaQing
  10. Pei XueTao

Corresponding author

Correspondence toPei XueTao.

Additional information

Supported by the Major Technology Program of Beijing Municipal Science & Technology Commission (Grant No. H060920050130) and the Major State Basic Research Development Program of China (Grant No. 2005CB522702)

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He, L., Nan, X., Wang, Y. et al. Full-thickness tissue engineered skin constructed with autogenic bone marrow mesenchymal stem cells.SCI CHINA SER C 50, 429–437 (2007). https://doi.org/10.1007/s11427-007-0069-2

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