Synovial Mesenchymal Stem Cells Derived From the Cotyloid Fossa Synovium Have Higher Self-renewal and Differentiation Potential Than Those From the Paralabral Synovium in the Hip Joint

2018 ◽  
Vol 46 (12) ◽  
pp. 2942-2953 ◽  
Author(s):  
Yoichi Murata ◽  
Soshi Uchida ◽  
Hajime Utsunomiya ◽  
Akihisa Hatakeyama ◽  
Hirotaka Nakashima ◽  
...  

Background: Several studies have shown the relationship between poorer clinical outcomes of arthroscopic femoroacetabular impingement syndrome surgery and focal chondral defects or global chondromalacia/osteoarthritis. Although recent studies described good outcomes after the conjunctive application of synovial mesenchymal stem cells (MSCs), none demonstrated the application of synovial MSCs for cartilaginous hip injuries. Purpose: To compare the characteristics of MSCs derived from the paralabral synovium and the cotyloid fossa synovium and determine which is the better source. Study Design: Controlled laboratory study. Methods: Synovium was harvested from 2 locations of the hip—paralabral and cotyloid fossa—from 18 donors. The number of cells, colony-forming units, viability, and differentiation capacities of adipose, bone, and cartilage were collected and compared between groups. In addition, real-time polymerase chain reaction was used to assess the differentiation capacity of adipose, bone, and cartilage tissue from both samples. Results: The number of colonies and yield obtained at passage 0 of synovium from the cotyloid fossa was significantly higher than that of the paralabral synovium ( P < .01). In adipogenesis experiments, the frequency of detecting oil red O–positive colonies was significantly higher in the cotyloid fossa than in the paralabral synovium ( P < .05). In osteogenesis experiments, the frequency of von Kossa and alkaline phosphatase positive colonies was higher in the cotyloid fossa synovium than in the paralabral synovium ( P < .05). In chondrogenic experiments, the chondrogenic pellet culture and the gene expressions of COL2a1 and SOX9 were higher in the cotyloid fossa synovium than in the paralabral synovium ( P < .05). Conclusion: MSCs from the cotyloid fossa synovium have higher proliferation and differentiation potential than do those from the paralabral synovium and are therefore a better source. Clinical Relevance: Synovial cells from the cotyloid fossa synovium of patients with femoroacetabular impingement syndrome are more robust in vitro, suggesting that MSCs from this source may be strongly considered for stem cell therapy.

2017 ◽  
Vol 29 (1) ◽  
pp. 205 ◽  
Author(s):  
S. A. Womack ◽  
D. J. Milner ◽  
D. W. Weisgerber ◽  
B. A. C. Harley ◽  
M. B. Wheeler

The pig is an ideal species for use in tissue engineering studies of bone and cartilage defect repair. Novel collagen-glycosaminoglycan hydrogel (CG) scaffolds have shown promise for supporting bone and cartilage growth from mesenchymal stem cells. In order to determine the suitability of these scaffolds for use in porcine models for bone and cartilage tissue engineering, we have begun to investigate the behaviour of porcine mesenchymal stem cells on this material. The purpose of this study was to determine if mesenchymal stem cells from fat (ASC) or bone marrow (BMSC) displayed better adherence and penetration into the CG scaffold material. The BMSC and ASC isolated from young adult Yorkshire pigs were cultured in DMEM with 10% fetal bovine serum. The ASC and BMSC were then trypsinized and used to seed ~3 mm diameter CG scaffolds with 140,000 cells/scaffold. Scaffolds were then cultured for 10 days by 3 different methods: roller culture, free-floating non-adherent dishes (floating), or attached to tissue culture-treated dishes (static). At the conclusion of the incubation period, the scaffold pieces were then fixed with 4% paraformaldehyde, embedded for cryosectioning, and sliced into 10 µm cryosections. Sections were stained for vimentin and 4’,6-diamidino-2-phenylindole (DAPI) to label cells. Stained sections were observed on a Leica DMB4200 microscope (Leica Microsystems, Wetzlar, Germany) and images acquired using ImagePro Plus software (Media Cybernetics Inc., Rockville, MD, USA). The DAPI-stained cells were counted to determine cell density and expressed as average number of nuclei per millimeter squared for each cell and culture type. Data were analysed by ANOVA utilising a post hoc Holm multiple comparison analysis. Samples from roller cultures did not display adhered cells for either BMSC or ASC. In contrast, floating and static culture allowed both ASC and BMSC to adhere to the scaffold and migrate to the centre of the scaffold equally well. However, significant differences in cell densities were noted between ASC and BMSC on CG scaffolds, with BMSC growing to higher densities than ASC in both floating and static culture. For floating cultures, BMSC-loaded scaffolds exhibited a cell density of 105.7 compared with 53.3 cells/mm2 for ASC (n = 4; P < 0.05). For static cultures, BMSC-loaded scaffolds exhibited a cell density of 128.3 compared with 36.8 cells/mm2 for ASC-loaded samples (n = 3; P < 0.01). Thus, BMSC grow to greater densities more rapidly than ASC and may be more efficient for use in forming bone and cartilage on these scaffolds. Current experiments underway will compare osteogenic and chondrogenic differentiation potential of ASC and BMSC on CG scaffolds, and will attempt to engineer osteochondral interface tissue on CG scaffolds from co-cultures of chondrocytes and stem cells.


Animals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1918
Author(s):  
Young-Bum Son ◽  
Yeon Ik Jeong ◽  
Yeon Woo Jeong ◽  
Mohammad Shamim Hossein ◽  
Per Olof Olsson ◽  
...  

Mesenchymal stem cells (MSCs) are promising multipotent cells with applications for cartilage tissue regeneration in stem cell-based therapies. In cartilage regeneration, both bone marrow (BM-MSCs) and synovial fluid (SF-MSCs) are valuable sources. However, the cellular characteristics and chondrocyte differentiation potential were not reported in either of the camel stem cells. The in vitro chondrocyte differentiation competence of MSCs, from (BM and SF) sources of the same Camelus dromedaries (camel) donor, was determined. Both MSCs were evaluated on pluripotent markers and proliferation capacity. After passage three, both MSCs showed fibroblast-like morphology. The proliferation capacity was significantly increased in SF-MSCs compared to BM-MSCs. Furthermore, SF-MSCs showed an enhanced expression of transcription factors than BM-MSCs. SF-MSCs exhibited lower differentiation potential toward adipocytes than BM-MSCs. However, the osteoblast differentiation potential was similar in MSCs from both sources. Chondrogenic pellets obtained from SF-MSCs revealed higher levels of chondrocyte-specific markers than those from BM-MSCs. Additionally, glycosaminoglycan (GAG) content was elevated in SF-MSCs related to BM-MSCs. This is, to our knowledge, the first study to establish BM-MSCs and SF-MSCs from the same donor and to demonstrate in vitro differentiation potential into chondrocytes in camels.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Kai-Yang Wang ◽  
Xiang-Yun Jin ◽  
Yu-Hui Ma ◽  
Wei-Jie Cai ◽  
Wei-Yuan Xiao ◽  
...  

Abstract Background Cartilage injury and pathological degeneration are reported in millions of patients globally. Cartilages such as articular hyaline cartilage are characterized by poor self-regeneration ability due to lack of vascular tissue. Current treatment methods adopt foreign cartilage analogue implants or microfracture surgery to accelerate tissue repair and regeneration. These methods are invasive and are associated with the formation of fibrocartilage, which warrants further exploration of new cartilage repair materials. The present study aims to develop an injectable modified gelatin hydrogel. Method The hydrogel effectively adsorbed proteoglycans secreted by chondrocytes adjacent to the cartilage tissue in situ, and rapidly formed suitable chondrocyte survival microenvironment modified by ε-poly-L-lysine (EPL). Besides, dynamic covalent bonds were introduced between glucose and phenylboronic acids (PBA). These bonds formed reversible covalent interactions between the cis−diol groups on polyols and the ionic boronate state of PBA. PBA-modified hydrogel induced significant stress relaxation, which improved chondrocyte viability and cartilage differentiation of stem cells. Further, we explored the ability of these hydrogels to promote chondrocyte viability and cartilage differentiation of stem cells through chemical and mechanical modifications. Results In vivo and in vitro results demonstrated that the hydrogels exhibited efficient biocompatibility. EPL and PBA modified GelMA hydrogel (Gel-EPL/B) showed stronger activity on chondrocytes compared to the GelMA control group. The Gel-EPL/B group induced the secretion of more extracellular matrix and improved the chondrogenic differentiation potential of stem cells. Finally, thus hydrogel promoted the tissue repair of cartilage defects. Conclusion Modified hydrogel is effective in cartilage tissue repair.


2012 ◽  
Vol 1498 ◽  
pp. 39-45
Author(s):  
Courtney E. LeBlon ◽  
Caitlin R. Fodor ◽  
Tony Zhang ◽  
Xiaohui Zhang ◽  
Sabrina S. Jedlicka

ABSTRACTHuman mesenchymal stem cells (hMSCs) were routinely cultured on tissue-culture polystyrene (TCPS) to investigate the in vitro aging and cell stiffening. hMSCs were also cultured on thermoplastic polyurethane (TPU), which is a biocompatible polymer with an elastic modulus of approximately 12.9MPa, to investigate the impact of substrate elastic modulus on cell stiffening and differentiation potential. Cells were passaged over several generations on each material. At each passage, cells were subjected to osteogenic and myogenic differentiation. Local cell elastic modulus was measured at every passage using atomic force microscopy (AFM) indentation. Gene and protein expression was examined using qRT-PCR and immunofluorescent staining, respectively, for osteogenic and myogenic markers. Results show that the success of myogenic differentiation is highly reliant on the elastic modulus of the undifferentiated cells. The success of osteogenic differentiations is most likely somewhat dependent on the cell elastic modulus, as differentiations were more successful in earlier passages, when cells were softer.


2007 ◽  
Vol 16 (8) ◽  
pp. 823-832 ◽  
Author(s):  
Hongbin Fan ◽  
Haifeng Liu ◽  
Rui Zhu ◽  
Xusheng Li ◽  
Yuming Cui ◽  
...  

The purpose of this study was to compare chondral defects repair with in vitro and in vivo differentiated mesenchymal stem cells (MSCs). A novel PLGA-gelatin/chondroitin/hyaluronate (PLGA-GCH) hybrid scaffold with transforming growth factor-β1 (TGF-β1)-impregnated microspheres (MS-TGF) was fabricated to mimic the extracellular matrix. MS-TGF showed an initial burst release (22.5%) and a subsequent moderate one that achieved 85.1% on day 21. MSCs seeded on PLGA-GCH/MS-TGF or PLGA-GCH were incubated in vitro and showed that PLGA-GCH/MS-TGF significantly augmented proliferation of MSCs and glycosaminoglycan synthesis compared with PLGA-GCH. Then MSCs seeded on PLGA-GCH/MS-TGF were implanted and differentiated in vivo to repair chondral defect on the right knee of rabbit (in vivo differentiation repair group), while the contralateral defect was repaired with in vitro differentiated MSCs seeded on PLGA-GCH (in vitro differentiation repair group). The histology observation demonstrated that in vivo differentiation repair showed better chondrocyte morphology, integration, and subchondral bone formation compared with in vitro differentiation repair 12 and 24 weeks postoperatively, although there was no significant difference after 6 weeks. The histology grading score comparison also demonstrated the same results. The present study implies that in vivo differentiation induced by PLGA-GCH/MS-TGF and the host microenviroment could keep chondral phenotype and enhance repair. It might serve as another way to induce and expand seed cells in cartilage tissue engineering.


2018 ◽  
Author(s):  
Sanjay K. Kureel ◽  
Pankaj Mogha ◽  
Akshada Khadpekar ◽  
Vardhman Kumar ◽  
Rohit Joshi ◽  
...  

AbstractHuman mesenchymal stem cells (hMSCs), when cultured on tissue culture plate (TCP) for in vitro expansion, they spontaneously lose their proliferative capacity and multi-lineage differentiation potential. They also lose their distinct spindle morphology and become large and flat. After a certain number of population doubling, they enter into permanent cell cycle arrest, called senescence. This is a major roadblock for clinical use of hMSCs which demands large number of cells. A cell culture system is needed which can maintain the stemness of hMSCs over long term passages yet simple to use. In this study, we explore the role of substrate rigidity in maintaining stemness. hMSCs were serially passaged on TCP and 5 kPa poly-acrylamide gel for 20 population doubling. It was found that while on TCP, cell growth reached a plateau at cumulative population doubling (CPD) = 12.5, on 5 kPa gel, they continue to proliferate linearly till we monitored (CPD = 20). We also found that while on TCP, late passage MSCs lost their adipogenic potential, the same was maintained on soft gel. Cell surface markers related to MSCs were also unaltered. We demonstrated that this maintenance of stemness was correlated with delay in onset of senescence, which was confirmed by β-gal assay and by differential expression of vimentin, Lamin A and Lamin B. As preparation of poly-acrylamide gel is a simple, well established, and well standardized protocol, we believe that this system of cell expansion will be useful in therapeutic and research applications of hMSCs.One Sentence SummaryhMSCs retain their stemness when expanded in vitro on soft polyacrylamide gel coated with collagen by delaying senescence.Significance StatementFor clinical applications, mesenchymal stem cells (MSCs) are required in large numbers. As MSCs are available only in scarcity in vivo, to fulfill the need, extensive in vitro expansion is unavoidable. However, on expansion, they lose their replicative and multi-lineage differentiation potential and become senescent. A culture system that can maintain MSC stemness on long-term expansion, without compromising the stemness, is need of the hour. In this paper, we identified polyacrylamide (PAA) hydrogel of optimum stiffness that can be used to maintain stemness of MSCs during in vitro long term culture. Large quantity of MSCs thus grown can be used in regenerative medicine, cell therapy, and in treatment of inflammatory diseases.


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