Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (6): 854-860.doi: 10.3969/j.issn.2095-4344.2015.06.007

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Isolation and culture of mouse adipose-derived stem cells and their homing to the intestinal tract

Hou Xiao-lin1, Yu Wei-dong2, Cui Mei-hua1, He Xiang-jun2, Liang Jun1   

  1. 1Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China; 2Institute of Clinical Molecular Biology, Peking University People’s Hospital, Beijing 100044, China
  • Received:2015-01-13 Online:2015-02-05 Published:2015-02-05
  • Contact: Cui Mei-hua, Chief physician, Associate professor, Master’s supervisor, Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China
  • About author:Hou Xiao-lin, Studying for master’s degree, Department of Gastroenterology, Peking University Aerospace School of Clinical Medicine, Beijing 100049, China
  • Supported by:

     the Clinical Medicine Development Project of Aerospace School of Clinical Medicine, No. YN2013TS03

Abstract:

BACKGROUND: Adipose-derived mesenchymal stem cells have gained more and more attention due to their high safety, less invasiveness, easy purification and rapid proliferation.
OBJECTIVE: To isolate and culture adipose-derived mesenchymal stem cells efficiently and rapidly with high purity and then to explore the cell homing to the intestinal tract after fluorescence labeling.
METHODS: Mouse adipose tissue obtained from the groin and epididymis was aseptically isolated and digested with 0.1% collagenase I. Then the digested cells and undigested adipose tissue were cultured together in the dish to harvest adipose-derived mesenchymal stem cells. The cells were identified by morphology, surface markers, growth kinetics, osteogenic and adipogenic differentiation potential, and then labeled by PKH67 before injected into ulcerative colitis mouse models through the tail vein to observe their homing to the intestinal tract. 
RESULTS AND CONCLUSION: In vitro, adipose-derived mesenchymal stem cells isolated by this method exhibited spindle-like appearance, grew intensively and arranged in a swirling shape. Adipose-derived mesenchymal stem cells expressed CD29, CD44 and CD90, but not expressed CD45. After osteogenic induction, alkaline phosphatase staining showed black particles and alizarin red S staining showed red mineralized nodules. After adipogenic induction, oil red O staining showed many lipid droplets were dyed red. Cell growth curve showed cells at 3-5 days were in logarithmic growth phase and they were active. Under fluorescence microscopy, frozen sections of the colon were found green fluorescence points that were increased with time. Results suggest that adipose-derived mesenchymal stem cells isolated and cultured in vitro can proliferate rapidly, purify easily and can be induced to osteoblasts and adipocytes; in vivo, PKH67-labeled cells can home to and proliferate in the colon.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


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Key words: Adipose Tissue, Mesenchymal Stem Cells, Colitis, Ulcerative

CLC Number: