Comparative study between the effect of mesenchymal stem cells and/or platelet-rich plasma on bone parameters in ovariectomized mature rats

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Gehane M Hamed ◽  
Noha A Nassef ◽  
Rania S.A Eissa ◽  
Mona K.E Shawky ◽  
Asmaa A Abo Zeid ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Bone Loss ◽  
Platelet Rich Plasma ◽  
Serum Levels ◽  
Untreated Group ◽  
Ovariectomized Rats ◽  
Necrosis Factor Alpha ◽  
Tnf Α ◽  
Microscopic Studies

Abstract Background Osteoporosis is a common bone disease and is associated with considerable morbidity and mortality. Osteoporosis occurs most frequently in postmenopausal women. The inadequacy of current treatments and their side effects have driven a search for improved methods of dealing with osteoporosis. Design Experimental study. Aim of Work This study was conducted to throw light on the ability of BM-MSCs and/or PRP in improving bone formation and slow down bone loss in ovariectomized rats with osteoporosis. Materials & Methods This study was carried out on adult female Wistar rats allocated randomly into five groups: Sham-operated, OVX untreated, OVX-MSCs treated (MSCs administered once intravenously), OVX/PRP treated (PRP administered once subcutaneously), OVX-MSCs/PRP treated groups. Rats were subjected to assessment of serum ALK, CTX-1, MDA and TNF-α. In addition, specimens of tibia were taken and processed for light microscopic studies and morphometric analysis. Results OVX untreated group showed significant increases in serum levels of ALK and CTX-1. Significant elevations of serum MDA and TNF-α levels were also noticed in the OVX untreated group. Administration of BM-MSCs and PRP significantly lowered serum levels of ALK, CTX-1, MDA and TNF-α. These results were confirmed by the histopathological findings. Conclusion BM-MSCs together with PRP can partially reverse OVX-induced bone loss and halt osteoporosis progression. Abbreviations BM-MSCs: bone marrow derived mesenchymal stem cells, PRP: platelet-rich plasma, OVX: ovariectomized, ALK: alkaline phosphatase, CTX-1: cross linked c telopeptide of type 1 collagen, MDA: malondialdehyde, TNF-α: tumour necrosis factor-alpha.

scholarly journals Effect of Mesenchymal Stem Cells and Platelet-Rich Plasma on the Bone Healing of Ovariectomized Rats

2016 ◽  
Vol 2016 ◽  
pp. 1-11 ◽  
Author(s):  
Bo Wei ◽  
Chengshuo Huang ◽  
Mingyan Zhao ◽  
Peng Li ◽  
Xiang Gao ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Platelet Rich Plasma ◽  
Bone Microarchitecture ◽  
Bone Defects ◽  
Ovariectomized Rats ◽  
Marker Genes ◽  
Osteoporotic Bone ◽  
Specific Marker ◽  
Allogeneic Bone

We evaluated the efficacy of platelet-rich plasma (PRP) in combination with allogeneic bone marrow mesenchymal stem cells (BMSCs) for the treatment of osteoporotic bone defects in an ovariectomized rat model. By day 42 after injury, in vivo microcomputed tomography (micro-CT) imaging revealed that bone defects of control rats and ovariectomized rats treated with PRP and BMSCs were completely repaired, whereas those of ovariectomized rats treated with PRP or BMSCs alone exhibited slower healing. Histological data were consistent with these results. We also assessed changes to bone trabeculae in the proximal tibial growth plate. In ovariectomized rats treated with PRP or with a combination of PRP and BMSCs, the trabecular connectivity densities (Conn.D), bone volume ratios (BV/TV), and numbers (Tb.N) in the defect areas increased significantly from day 7 to day 42. These results indicate that PRP treatment enhances bone microarchitecture in osteoporosis. Moreover, expression levels of osteogenesis-specific marker genes including RUNX2, OSX, and OPN were significantly upregulated in rats treated with PRP and BMSCs compared to those of other groups. Thus, we conclude that treatment with PRP combined with BMSCs significantly promotes healing of osteoporotic bone defects. This study provides an alternative strategy for the treatment of osteoporotic bone loss.

scholarly journals Systemic Administration of Allogeneic Mesenchymal Stem Cells Does Not Halt Osteoporotic Bone Loss in Ovariectomized Rats

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0163131 ◽  
Author(s):  
Shuo Huang ◽  
Liangliang Xu ◽  
Yuxin Sun ◽  
Sien Lin ◽  
Weidong Gu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Bone Loss ◽  
Systemic Administration ◽  
Ovariectomized Rats ◽  
Osteoporotic Bone

Can mesenchymal stem cells pretreated with platelet-rich plasma modulate tissue remodeling in a rat with burned skin?

2017 ◽  
Vol 95 (5) ◽  
pp. 537-548 ◽  
Author(s):  
Hanan Hosni Ahmed ◽  
Laila Ahmed Rashed ◽  
Sohair Mahfouz ◽  
Rania Elsayed Hussein ◽  
Marwa Alkaffas ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Transforming Growth Factor ◽  
Burn Injury ◽  
Platelet Rich Plasma ◽  
In Vivo Studies ◽  
Control Group ◽  
Tnf Α

Our aim was to study the effect of platelet-rich plasma (PRP) on the proliferation of bone-marrow-derived mesenchymal stem cells (BM-MSCs) and to investigate their roles in the healing of experimental burn injury and the possible mechanism of action. Our work was divided into in-vitro and in-vivo studies. The in-vitro study included untreated MSCs and MSCs treated with PRP. Levels of TGF-β and cell proliferation were assessed. In the in-vivo study, 72 rats were distributed equally among 6 groups: control, burn, burn with MSCs, burn with PRP, burn with both MSCs and PRP, and burn with MSCs pretreated with PRP. On the 7th and 20th day after injury, the serum levels of transforming growth factor beta (TGF-β) and tumor necrosis factor alpha (TNF-α), as well as interleukin-10 (IL-10) levels in skin tissue were measured by ELISA; histopathology and gene expression of MMP-1, TIMP-2, Ang-1, Ang-2, and vimentin by real-time PCR were performed in all groups. In vitro: proliferation of MSCs and TGF-β increased in the PRP-treated group compared with the control group. In vivo: Ang-1, Ang-2, and vimentin were upregulated, whereas MMP-1 and TIMP-2 were downregulated. TGF-β and IL-10 were increased, whereas TNF-α was decreased in all treated groups with more significance in MSCs and PRP on day 20. Histopathology of burn skin was improved in all treated groups, particularly in MSCs pretreated with PRP 20 days post-burn.

scholarly journals Correction: Systemic Administration of Allogeneic Mesenchymal Stem Cells Does Not Halt Osteoporotic Bone Loss in Ovariectomized Rats

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0172462
Author(s):  
Shuo Huang ◽  
Liangliang Xu ◽  
Yuxin Sun ◽  
Sien Lin ◽  
Weidong Gu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Bone Loss ◽  
Systemic Administration ◽  
Ovariectomized Rats ◽  
Osteoporotic Bone

Mesenchymal stem cells pretreated with platelet-rich plasma modulate doxorubicin-induced cardiotoxicity

2019 ◽  
Vol 38 (7) ◽  
pp. 857-874
Author(s):  
SM Zaki ◽  
WA Abd Algaleel ◽  
RA Imam ◽  
MM Abdelmoaty
Keyword(s):  
Oxidative Stress ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Troponin I ◽  
Platelet Rich Plasma ◽  
Treated Group ◽  
Toxic Dose ◽  
Tnf Α ◽  
Creatine Kinase Mb ◽  
Cardiac Apoptosis

The cardiotoxic adverse effect of doxorubicin (DOX) is the major factor limiting its use. Recently, mesenchymal stem cells (MSCs) have been implicated in the preclinical studies of treatment of DOX-induced cardiotoxicity. The question is MSCs pretreated with platelet-rich plasma (PRP) have a better influence on DOX-induced cardiotoxicity compared to the influence of MSCs alone. Twenty-four Wistar rats were categorized into control, DOX-treated, MSC-treated, and PRP/MSC-treated groups. DOX was injected for two consecutive weeks. Light microscopic, biochemical markers (interleukin 10 (IL-10), tumor necrosis factor alpha (TNF-α), and creatine kinase-MB (CK-MB)), immunohistochemical (Bax, Bcl2, vascular endothelial growth factor (VEGF), and cardiac troponin-I (CT-I)), and oxidative/antioxidative markers (malondialdehyde (MDA)/superoxide dismutase (SOD)) were measured. Degenerative cardiac changes were detected in the DOX-treated group with complete loss of the architecture and coagulative necrosis. These changes were accompanied with the elevation of the serum level of CK-MB and loss of CT-I immunoreactivity. The major factors in the DOX-induced cardiotoxicity were the oxidative stress (elevated MDA/decreased SOD), inflammation (elevated TNF-α/decreased IL-10), and cardiac apoptosis (lower Bcl2, higher Bax, and lower Bcl2/Bax ratio). MSCs and PRP/MSCs attenuate DOX-induced cardiotoxicity. Better attenuation was observed in the PRP/MSC-treated group. PRP/MSC combination reduced greatly the MDA and TNF-α and increased IL-10, Bcl2/Bax ratio, and VEGF. PRP had no significant influence over the Bcl2, Bax, and SOD. In conclusion, DOX in its toxic dose induced myocardial injury. This destructive effect is related to oxidative stress, inflammation, and cardiac apoptosis. PRP/MSC possesses a better attenuation over the DOX-induced toxicity compared to MSC alone.

Combination of preconditioned adipose-derived mesenchymal stem cells and platelet-rich plasma improves the repair of osteoarthritis in rat

2020 ◽  
Author(s):  
Muhammad Rauf Ahmad ◽  
Wafa Badar ◽  
Muhammad Azmat Ullah Khan ◽  
Azra Mahmood ◽  
Noreen Latif ◽  
...  
Keyword(s):  
Gene Expression ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Articular Cartilage ◽  
Inflammatory Markers ◽  
Platelet Rich Plasma ◽  
Combined Therapy ◽  
Tnf Α ◽  
Gene Expression Analyses ◽  
Proteoglycan Content

Aim: To observe the combined effect of platelet-rich plasma (PRP) and preconditioned adipose-derived mesenchymal stem cells (ADMSCs) on the injured articular cartilage of the rat. Materials & methods: Animals in the study received an intra-articular injection of PRP and preconditioned ADMSCs, both in combination and separately. The response to therapeutic intervention was evaluated by inflammatory markers, proteoglycans content, chondrogenesis and gene expression analyses. Results: The combined therapy resulted in a reduction of  IL-6 and  TNF-α, increased proteoglycan content of the articular cartilage, upregulation of Acan, Col2a1 and  PCNA genes. Downregulation of Col1a1, Col10a1 and Casp3 genes was observed as compared with the untreated osteoarthritis rat model. Conclusion: PRP potentiates the effects of ADMSCs on the repair of damaged articular cartilage.

scholarly journals Inflammatory cytokines-stimulated human muscle stem cells ameliorate ulcerative colitis via the IDO-TSG6 axis

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Shengchao Zhang ◽  
Jiankai Fang ◽  
Zhanhong Liu ◽  
Pengbo Hou ◽  
Lijuan Cao ◽  
...  
Keyword(s):  
Ulcerative Colitis ◽  
Stem Cells ◽  
Mesenchymal Stem Cells ◽  
Inflammatory Cytokines ◽  
Human Muscle ◽  
Enzyme Linked Immunosorbent Assay ◽  
Muscle Stem Cells ◽  
Tnf Α ◽  
Ifn Γ ◽  
Anti Inflammatory

Abstract Background Muscle stem cells (MuSCs) are absolutely required for the formation, repair, and regeneration of skeletal muscle tissue. Increasing evidence demonstrated that tissue stem cells, especially mesenchymal stem cells (MSCs), can exert therapeutic effects on various degenerative and inflammatory disorders based on their immunoregulatory properties. Human mesenchymal stem cells (hMSCs) treated with interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) were reported to possess anti-inflammatory functions by producing TNF-stimulated gene 6 (TSG-6). However, whether human muscle stem cells (hMuSCs) also possess TSG-6 mediated anti-inflammatory functions has not been explored. Methods The ulcerative colitis mouse model was established by subjecting mice to dextran sulfate sodium (DSS) in drinking water for 7 days. hMuSCs were pretreated with IFN-γ and TNF-α for 48 h and were then transplanted intravenously at day 2 of DSS administration. Body weights were monitored daily. Indoleamine 2,3-dioxygenase (IDO) and TSG-6 in hMuSCs were knocked down with short hairpin RNA (shRNA) and small interfering RNA (siRNA), respectively. Colon tissues were collected for length measurement and histopathological examination. The serum level of IL-6 in mice was measured by enzyme-linked immunosorbent assay (ELISA). Real-time PCR and Western blot analysis were performed to evaluate gene expression. Results hMuSCs treated with inflammatory factors significantly ameliorated inflammatory bowel disease (IBD) symptoms. IDO and TSG-6 were greatly upregulated and required for the beneficial effects of hMuSCs on IBD. Mechanistically, the tryptophan metabolites, kynurenine (KYN) or kynurenic acid (KYNA) produced by IDO, augmented the expression of TSG-6 through activating their common receptor aryl hydrocarbon receptor (AHR). Conclusion Inflammatory cytokines-treated hMuSCs can alleviate DSS-induced colitis through IDO-mediated TSG-6 production.

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