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Publication
ID30609814Published Date2019-01-03JournalCells, 2019-01-03, Volume 8
Induced pluripotent stem cells (iPSCs) are the foundation of modern stem cell-based regenerative medicine, especially in the case of degenerative disorders, such as muscular dystrophies (MDs). Since their introduction in 2006, many studies have used iPSCs for disease modeling and identification of involved mechanisms, drug screening, as well as gene correction studies. In the case of muscular dystrophies, these studies commenced in 2008 and continue to address important issues, such as defini…
Publication
ID30428361Published Date2018-11-13JournalCell reports, 2018-11-13, Volume 25
Myogenic differentiation of human pluripotent stem cells (hPSCs) has been done by gene overexpression or directed differentiation. However, viral integration, long-term culture, and the presence of unwanted cells are the main obstacles. By using CRISPR/Cas9n, a double-reporter human embryonic stem cell (hESC) line was generated for PAX7/MYF5, allowing prospective readout. This strategy allowed pathway screen to define efficient myogenic induction in hPSCs. Next, surface marker screen allowed …
Publication
ID29331939Published Date2018-03-01JournalStem cell research, 2018-03-01, Volume 27
Volumetric muscle defect, caused by trauma or combat injuries, is a major health concern leading to severe morbidity. It is characterized by partial or full thickness loss of muscle and its bio-scaffold, resulting in extensive fibrosis and scar formation. Therefore, the ideal therapeutic option is to use stem cells combined with bio-scaffolds to restore muscle. For this purpose, muscle-derived stem cells (MDSCs) are a great candidate due to their unique multi-lineage differentiation potential…
Publication
ID29034878Published Date2017-10-01JournalStem cell research, 2017-10-01, Volume 24
Recently, a new type of limb-girdle muscular dystrophy (LGMD type 2Z) has been identified due to a missense mutation in POGLUT1 (protein O-glucosyltransferase-Rumi), an enzyme capable of adding glucose to a distinct serine residue of epidermal growth factor-like repeats containing a C-X-S-X-(P/A)-C consensus sequence such as Notch receptors. Affected patients demonstrate reduced Notch signaling, decreased muscle stem cell pool and hypoglycosylation of α-dystroglycan, leading to LGMD phenotype…
Publication
ID28177678Published Date2017-07-01JournalCanadian journal of physiology and pharmacology, 2017-07-01, Volume 95
Many obstacles compromise the efficacy of bone marrow mesenchymal stem cells (BM-MSCs) by inducing apoptosis in the grafted BM-MSCs. The current study investigates the effect of melatonin on important mediators involved in survival of BM-MSCs in hydrogen peroxide (HO) apoptosis model. In brief, BM-MSCs were isolated, treated with melatonin, and then exposed to HO. Their viability was assessed by MTT assay and apoptotic fractions were evaluated through Annexin V, Hoechst staining, and ADP/ATP …
Publication
ID27555371Published Date2016-11-01JournalJournal of pineal research, 2016-11-01, Volume 61
Osteoarthritis (OA) is a degenerative joint disease characterized by progressive erosion of articular cartilage. As chondrocytes are the only cell type forming the articular cartilage, their gradual loss is the main cause of OA. There is a substantial body of published research that suggests reactive oxygen species (ROS) are major causative factors for chondrocyte damage and OA development. Oxidative stress elicited by ROS is capable of oxidizing and subsequently disrupting cartilage homeosta…
Publication
ID26826926Published Date2016-03-01JournalStem cell research, 2016-03-01, Volume 16
Directed differentiation of iPS cells toward various tissue progenitors has been the focus of recent research. Therefore, generation of tissue-specific reporter iPS cell lines provides better understanding of developmental stages in iPS cells. This technical report describes an efficient strategy for generation and validation of knock-in reporter lines in human iPS cells using the Cas9-nickase system. Here, we have generated a knock-in human iPS cell line for the early myogenic lineage specif…
Publication
ID26729410Published Date2016-01-05JournalScientific reports, 2016-01-05, Volume 6
Human iPS cells hold great promise for disease modeling and treatment of degenerative disorders including muscular dystrophies. Although a few research groups have used them for skeletal muscle differentiation, most were based on gene over-expression or long-term mesenchymal differentiation and retrospective identification of myogenic cells. Therefore, this study was aimed to generate a knock-in reporter human iPS cell line for MYF5, as an early myogenic specification gene, to allow prospecti…
Publication
ID26341268Published Date2015-11-15JournalExperimental cell research, 2015-11-15, Volume 339
Muscular dystrophies are among major inherited muscle disorders characterized by progressive muscle damage and fibrosis with no definitive cure. Recently, gene or cell based therapies have been developed to restore the missing gene expression or replace the damaged tissues. In order to test the efficiency of these therapies in mice models of muscular dystrophies, the arterial route of delivery is very advantageous as it provides uniform muscle exposure to the therapeutic agents or cells. Alth…
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