scholarly journals Modeling Skeletal Muscle Laminopathies Using Human Induced Pluripotent Stem Cells Carrying Pathogenic LMNA Mutations

2018 ◽  
Vol 9 ◽  
Author(s):  
Heather B. Steele-Stallard ◽  
Luca Pinton ◽  
Shilpita Sarcar ◽  
Tanel Ozdemir ◽  
Sara M. Maffioletti ◽  
...  
Stem Cells ◽  
2017 ◽  
Vol 35 (7) ◽  
pp. 1687-1703 ◽  
Author(s):  
Damià Romero-Moya ◽  
Carlos Santos-Ocaña ◽  
Julio Castaño ◽  
Gloria Garrabou ◽  
José A. Rodríguez-Gómez ◽  
...  

2016 ◽  
Vol 113 (7) ◽  
pp. 1889-1894 ◽  
Author(s):  
Salvatore Iovino ◽  
Alison M. Burkart ◽  
Laura Warren ◽  
Mary Elizabeth Patti ◽  
C. Ronald Kahn

Induced pluripotent stem cells (iPS cells) represent a unique tool for the study of the pathophysiology of human disease, because these cells can be differentiated into multiple cell types in vitro and used to generate patient- and tissue-specific disease models. Given the critical role for skeletal muscle insulin resistance in whole-body glucose metabolism and type 2 diabetes, we have created a novel cellular model of human muscle insulin resistance by differentiating iPS cells from individuals with mutations in the insulin receptor (IR-Mut) into functional myotubes and characterizing their response to insulin in comparison with controls. Morphologically, IR-Mut cells differentiated normally, but had delayed expression of some muscle differentiation-related genes. Most importantly, whereas control iPS-derived myotubes exhibited in vitro responses similar to primary differentiated human myoblasts, IR-Mut myotubes demonstrated severe impairment in insulin signaling and insulin-stimulated 2-deoxyglucose uptake and glycogen synthesis. Transcriptional regulation was also perturbed in IR-Mut myotubes with reduced insulin-stimulated expression of metabolic and early growth response genes. Thus, iPS-derived myotubes from individuals with genetically determined insulin resistance demonstrate many of the defects observed in vivo in insulin-resistant skeletal muscle and provide a new model to analyze the molecular impact of muscle insulin resistance.


Cells ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 1527 ◽  
Author(s):  
Denisa Baci ◽  
Maila Chirivì ◽  
Valentina Pace ◽  
Fabio Maiullari ◽  
Marika Milan ◽  
...  

The recent advances, offered by cell therapy in the regenerative medicine field, offer a revolutionary potential for the development of innovative cures to restore compromised physiological functions or organs. Adult myogenic precursors, such as myoblasts or satellite cells, possess a marked regenerative capacity, but the exploitation of this potential still encounters significant challenges in clinical application, due to low rate of proliferation in vitro, as well as a reduced self-renewal capacity. In this scenario, induced pluripotent stem cells (iPSCs) can offer not only an inexhaustible source of cells for regenerative therapeutic approaches, but also a valuable alternative for in vitro modeling of patient-specific diseases. In this study we established a reliable protocol to induce the myogenic differentiation of iPSCs, generated from pericytes and fibroblasts, exploiting skeletal muscle-derived extracellular vesicles (EVs), in combination with chemically defined factors. This genetic integration-free approach generates functional skeletal myotubes maintaining the engraftment ability in vivo. Our results demonstrate evidence that EVs can act as biological “shuttles” to deliver specific bioactive molecules for a successful transgene-free differentiation offering new opportunities for disease modeling and regenerative approaches.


2010 ◽  
Vol 24 (7) ◽  
pp. 2245-2253 ◽  
Author(s):  
Yuta Mizuno ◽  
Hsi Chang ◽  
Katsutsugu Umeda ◽  
Akira Niwa ◽  
Toru Iwasa ◽  
...  

2020 ◽  
Vol 7 (4) ◽  
pp. 395-405
Author(s):  
Takahiko Sato

Induced pluripotent stem cells (iPSCs) have the potential to differentiate into various types of cells and tissues including skeletal muscle. The approach to convert these stem cells into skeletal muscle cells offers hope for patients afflicted with skeletal muscle diseases such as Duchenne muscular dystrophy (DMD). Several methods have been reported to induce myogenic differentiation with iPSCs derived from myogenic patients. An important point for generating skeletal muscle cells from iPSCs is to understand in vivo myogenic induction in development and regeneration. Current protocols of myogenic induction utilize techniques with overexpression of myogenic transcription factors such as Myod1(MyoD), Pax3, Pax7, and others, using recombinant proteins or small molecules to induce mesodermal cells followed by myogenic progenitors, and adult muscle stem cells. This review summarizes the current approaches used for myogenic induction and highlights recent improvements.


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