According to many researches, mesenchymal stem cells (MSC) isolated from synovial membrane and infrapatellar fat pad have higher ex vivo proliferation capacity, multipotency and ability to undergo chondrogenesis.
Based on this concept, the investigators plan to get two removed tissues (synovial membrane and infrapatellar fat pad) from patients who have an operation of TKR (Total Knee Replacement). The investigators are going to isolate and expand MSC from these two tissues respectively, and then compare their characterization and potential for clinical application. In the other hand, the investigators plan to build techniques and procedures which comply with "Good Tissue Practices (GTP)".

开始日期2014-05-01

申办/合作机构

艾默生物医学股份有限公司

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100 项与 MSCs Therapy(EMO Biomedicine Corporation) 相关的临床结果

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100 项与 MSCs Therapy(EMO Biomedicine Corporation) 相关的转化医学

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100 项与 MSCs Therapy(EMO Biomedicine Corporation) 相关的专利（医药）

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项与 MSCs Therapy(EMO Biomedicine Corporation) 相关的文献（医药）

2024-12-01·Molecular Neurobiology

Enhanced Therapeutic Effects of Human Mesenchymal stem Cells Transduced with Secreted Klotho in a Murine Experimental Autoimmune Encephalomyelitis Model

Article

作者: Emami Aleagha, Mohammad Sajad ; Rezapour Kalkhoran, Maryam ; Allameh, Abdolamir ; Maleki, Narges

Treatment of multiple sclerosis (MS) remains a major challenge. The aim of this study was to evaluate the therapeutic potential of mesenchymal stem cells (MSCs) engineered with secreted Klotho (SKL) in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS. EAE was induced in mice. MSCs or MSCs engineered with SKL (SKL-MSCs) were administered to EAE mice at the onset of disease. Hematoxylin-eosin and luxol fast blue staining were performed to evaluate histopathological changes. Expression of pro-inflammatory (TNF-α, IFN-γ, and IL-17) and anti-inflammatory (IL-10) cytokines was determined in the spinal cord using real-time PCR. Spinal cords were then processed for immunohistochemistry of the aforementioned cytokines. The frequencies of Th1, Th17, and regulatory T (Treg) cells were evaluated by flow cytometry of the spleen. The results showed that SKL-MSCs decreased clinical scores and reduced demyelination and inflammatory infiltration in the spinal cord more significantly than MSCs. Compared to MSCs, SKL-MSCs also exhibited a more profound capability of decreasing expression of TNF-α, IFN-γ, and IL-17 and increasing expression of IL-10 in the spinal cord with an enhanced homing to the inflamed tissue. Moreover, SKL-MSCs decreased the frequencies of Th1 and Th17 cells and increased the frequency of Treg cells in the spleen more potently than MSCs. Taken together, these findings demonstrate that SKL overexpression enhances the therapeutic potential of MSCs, as evidenced by significantly improved disease severity, decreased inflammation and tissue damage in the spinal cord, and a promoted shift in the Th17/Treg balance towards the anti-inflammatory Treg side in the EAE mice.

2024-12-01·Molecular Biology Reports

Effects of mesenchymal stem cells versus curcumin on sonic hedgehog signaling in experimental model of Hepatocellular Carcinoma

Article

作者: Fouad, Hanan ; Sedeak, Ahmed Yahia ; Reyad, Hoda Ramadan ; Faruk, Eman ; Rateb, Enas Ezzat ; Abdel-Tawab, Marwa Sayed ; Doudar, Noha A

BACKGROUNDSonic Hedgehog (SHH) is a fundamental signaling pathway that controls tissue reconstruction, stem cell biology, and differentiation and has a role in gut tissue homeostasis and development. Dysregulation of SHH leads to the development of HCC.METHODS, AND RESULTSThe present study was conducted to compare the effects of mesenchymal stem cells (MSCs) and curcumin on SHH molecular targets in an experimental model of HCC in rats. One hundred rats were divided equally into the following groups: control group, HCC group, HCC group received MSCs, HCC group received curcumin, and HCC group received MSCs and curcumin. Histopathological examinations were performed, and gene expression of SHH signaling target genes (SHH, PTCH1, SMOH, and GLI1) was assessed by real-time PCR in rat liver tissue. Results showed that SHH target genes were significantly upregulated in HCC-untreated rat groups and in MSC-treated groups, with no significant difference between them. Administration of curcumin with or without combined administration of MSCs led to a significant down-regulation of SHH target genes, with no significant differences between both groups. As regards the histopathological examination of liver tissues, both curcumin and MSCs, either through separate use or their combined use, led to a significant restoration of normal liver pathology.CONCLUSIONSIn conclusion, SHH signaling is upregulated in the HCC experimental model. MSCs do not inhibit the upregulated SHH target genes in HCC. Curcumin use with or without MSCs administration led to a significant down-regulation of SHH signaling in HCC and a significant restoration of normal liver pathology.

2024-12-01·Academic Radiology

Use of Intravoxel Incoherent Motion Diffusion-Weighted Imaging to Assess Mesenchymal Stromal Cells Promoting Liver Regeneration in a Rat Model

Article

作者: Qiu, Caixin ; Wang, Xuyang ; Qin, Jiaming ; Xie, Shuangshuang ; Hu, Zhandong ; Shen, Wen ; Zhu, Jinxia ; Du, Xinzhe ; Grimm, Robert

RATIONALE AND OBJECTIVESMesenchymal stem cells (MSCs) have the potential to promote liver regeneration, but the process is unclear. This study aims to explore the therapeutic effects and dynamic processes of MSCs in liver regeneration through intravoxel incoherent motion (IVIM) imaging.ANIMAL MODEL70 adult Sprague-Dawley rats were randomly divided into either the control or MSC group (n = 35/group). All rats received a partial hepatectomy (PH) with the left lateral and middle lobes removed. Each group was divided into seven subgroups: pre-PH and 1, 2, 3, 5, 7, and 14 days post-PH (n = 5 rats/subgroup). Magnetic resonance imaging (MRI) was performed before obtaining pathological specimens at each time point on postoperative days 1, 2, 3, 5, 7, and 14. The MRI parameters for the pure diffusion coefficient (D), pseudodiffusion coefficient (D*), and perfusion fraction (PF) were calculated. Correlation analysis was conducted for the biochemical markers (alanine transaminase [ALT], aspartate transaminase [AST], and total bilirubin [TBIL]), histopathological findings (hepatocyte size and Ki-67 proliferation index), liver volume (LV) and liver regeneration rate (LLR).RESULTSLiver D, D* , and PF differed significantly between the control and MSC groups at all time points (all P < 0.05). After PH, the D increased, then decreased, and the D* and PF decreased, then increased in both groups. The hepatocyte Ki-67 proliferation index of the MSC group was lower on day 2 post-PH, but higher on days 3 and 5 post-PH than that of the control group. Starting from day 3 post-PH, both the LV and LLR in the MSC group were greater than those in the control group (all P < 0.05). Hepatocytes were larger in the MSC group than in the control group on days 2 and 7 post-PH. In the MSC group, the D, D* , and PF were correlated with the AST levels, Ki-67 index and hepatocyte size (|r|=0.35-0.71; P < 0.05). In the control group, the D and D* were correlated with ALT levels, AST levels, Ki-67 index, LLR, LV, and hepatocyte size (|r|=0.34-0.95; P < 0.05).CONCLUSIONBone marrow MSC therapy can promote hepatocyte hypertrophy and prolong liver proliferation post-PH. IVIM parameters allow non-invasively evaluating the efficacy of MSCs in promoting LR.

100 项与 MSCs Therapy(EMO Biomedicine Corporation) 相关的药物交易

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