Khalilifar MA, Baghaban Eslaminejad MR, Ghasemzadeh M, Hosseini S, Baharvand H. In Vitro and In Vivo Comparison of Different Types of Rabbit Mesenchymal Stem Cells for Cartilage Repair.
CELL JOURNAL 2019;
21:150-160. [PMID:
30825288 PMCID:
PMC6397606 DOI:
10.22074/cellj.2019.6149]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 09/08/2018] [Indexed: 01/09/2023]
Abstract
Objective
Systematic studies indicate a growing number of clinical studies that use mesenchymal stem cells (MSCs) for the
treatment of cartilage lesions. The current experimental and preclinical study aims to comparatively evaluate the potential of
MSCs from a variety of tissues for the treatment of cartilage defect in rabbit’s knee which has not previously been reported.
Materials and Methods
In this experimental study, MSCs isolated from bone marrow (BMMSCs), adipose (AMSCs), and ears
(EMSCs) of rabbits and expanded under in vitro culture. The growth rate and differentiation ability of MSCs into chondrocyte
and the formation of cartilage pellet were investigated by drawing the growth curve and real-time polymerase chain reaction
(RT-PCR), respectively. Then, the critical cartilage defect was created on the articular cartilage (AC) of the rabbit distal femur,
and MSCs in collagen carrier were transplanted. The studied groups were as the control (only defect), sham (defect with
scaffold), BMMSCs in the scaffold, EMSCs in the scaffold, and EMSCs in the scaffold with cartilage pellets. Histological and
the gene expression analysis were performed following the transplantation.
Results
Based on our comparative in vitro investigation, AMSCs possessed the highest growth rate, as well as the
lowest chondrogenic differentiation potential. In this context, MSCs of the ear showed a significantly higher growth rate
and cartilage differentiation potential than those of bone marrow tissue (P<0.05). According to our in vivo assessments,
BMMSC- and EMSC-seeded scaffolds efficiently improved the cartilage defect 4 weeks post-transplantation, while no
improvement was observed in the group contained the cartilage pellets.
Conclusion
It seems that the ear contains MSCs that promote cartilage regeneration as much as the conventional MSCs
from the bone marrow. Considering a high proliferation rate and easy harvesting of MSCs of the ear, this finding could be of
value for the regenerative medicine.
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