Open Access

Isolation and characterization of minipig perivascular stem cells for bone tissue engineering

  • Authors:
    • Zhen Cui
    • Chenshuang Li
    • Nan Jiang
    • Ci Zhang
    • Yiran Wang
    • Hongyun Gao
    • Yanheng Zhou
  • View Affiliations

  • Published online on: August 21, 2018     https://doi.org/10.3892/mmr.2018.9410
  • Pages: 3555-3562
  • Copyright: © Cui et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Human subcutaneous adipose tissue has been recognized as a rich source of tissue resident mesenchymal stem/stromal cells (MSC) in recent years. The current study was designed to sort the minipig (mp) perivascular stem cells (PSCs) and investigate the osteogenic potential. Purification of human PSCs was achieved via fluorescence‑activated cell sorting (FACS) from human liposuction samples [cluster of differentiation (CD)45‑CD34‑CD146+ perithelial cells and CD45‑CD34+CD146‑ adventitial cells]. Subsequently, PSCs were isolated from mp adipose tissue samples (n=9), characterized and, using purified mpPSCs (obtained by FACS, which is used in human PSC purification), the mpPSC osteogenic and adipogenic potential was evaluated by Alizarin Red S and Oil Red O staining in vitro, respectively. The cell morphometry was observed following cell isolation and culture, and hematoxylin and eosin staining was performed to identify the fat tissue structure and vascular distribution. Osteogenic and adipogenic differentiation‑associated gene expression levels were analyzed by reverse transcription‑quantitative polymerase chain reaction. The results demonstrated that the same antigens used for human PSC identification and isolation were working in mp tissue (CD45, CD146 and CD34). The two cell groups: CD45‑CD34‑CD146+ pericytes and CD45‑CD34+CD146‑ adventitial cells were successfully isolated from the subcutaneous fat in the posterior neck of mps, mpPSCs accounted for 8.6% of the stromal vascular fraction (SVF) with 1.4% pericytes and 7.2% adventitial cells. mpPSCs demonstrated characteristics of MSCs, including cell surface marker expression, colony forming unit‑fibroblast inclusion, and the stronger osteogenic and adipogenic differentiation potential than that of the non‑selected vascular stromal cells. The mRNA expression levels of osteocalcin, collagen, type I, α1 and peroxisome proliferator‑activated receptor‑γ in the mpPSCs group were significantly higher than those of the unsorted pSVF group (P<0.05). Thus, the current study successfully isolated and cultured CD146+ and CD34+ cell populations from mp tissues, characterized the cells' PSC‑like phenotype and identified their distinctly osteogenic and adipogenic potential.
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October-2018
Volume 18 Issue 4

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Cui Z, Li C, Jiang N, Zhang C, Wang Y, Gao H and Zhou Y: Isolation and characterization of minipig perivascular stem cells for bone tissue engineering. Mol Med Rep 18: 3555-3562, 2018
APA
Cui, Z., Li, C., Jiang, N., Zhang, C., Wang, Y., Gao, H., & Zhou, Y. (2018). Isolation and characterization of minipig perivascular stem cells for bone tissue engineering. Molecular Medicine Reports, 18, 3555-3562. https://doi.org/10.3892/mmr.2018.9410
MLA
Cui, Z., Li, C., Jiang, N., Zhang, C., Wang, Y., Gao, H., Zhou, Y."Isolation and characterization of minipig perivascular stem cells for bone tissue engineering". Molecular Medicine Reports 18.4 (2018): 3555-3562.
Chicago
Cui, Z., Li, C., Jiang, N., Zhang, C., Wang, Y., Gao, H., Zhou, Y."Isolation and characterization of minipig perivascular stem cells for bone tissue engineering". Molecular Medicine Reports 18, no. 4 (2018): 3555-3562. https://doi.org/10.3892/mmr.2018.9410