alexa Disease-specific Induced Pluripotent Stem Cell Modeling
ISSN: 2157-7633

Journal of Stem Cell Research & Therapy
Open Access

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Research Article

Disease-specific Induced Pluripotent Stem Cell Modeling: Insights into the Pathophysiology of Valosin Containing Protein (VCP) Disease

Eric Dec1,2,#, David Ferguson1,2,#, Angèle Nalbandian1,2,#, Matthew Gargus1, Veeral Katheria1, Prachi Rana1, Abel Ibrahim1, Maya Hatch2, Mary Lan1, Katrina J Llewellyn1, Hans Keirstead2 and Virginia E Kimonis1,2*

1Department of Pediatrics, Division of Genetics and Metabolism, University of California-Irvine, Irvine, CA 92697, USA

2Anatomy and Neurobiology, Reese-Irvine Research Center, Sue and Bill Gross Stem Cell Research Center, University of California-Irvine, Irvine, CA 92697, USA

#The authors wish it to be known that, in their opinion, the first three authors should be regarded as joint First Authors.

Corresponding Author:
Virginia Kimonis, MD, MRCP
Department of Pediatrics, Division of Genetics and Metabolism
University of California-Irvine, 2501 Hewitt Hall, Irvine, CA 92697, USA
Tel: (714) 456-5791, (714) 456-2942
Fax: (714) 456-5330;
Pager: (714) 506-2063
E-mail: [email protected]

Received Date: January 05, 2014; Accepted Date: February 09, 2014; Published Date: February 11, 2014

Citation: Dec E, Ferguson D, Nalbandian A, Gargus M, Katheria V, et al. (2014) Disease-Specific Induced Pluripotent Stem Cell Modeling: Insights into the Pathophysiology of Valosin Containing Protein (VCP) Disease. J Stem Cell Res Ther 4:168. doi: 10.4172/2157-7633.1000168

Copyright: © 2014 Dec E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Valosin Containing Protein (VCP) disease is an autosomal dominant disorder caused by mutations in the VCP gene and is associated with progressive muscle weakness and atrophy. Affected individuals exhibit striking scapular winging due to shoulder girdle weakness. Currently, there are no treatments available and patients are dying early from cardiac and respiratory failure, typically in their 40’s and 50’s. The generation of disease-specific induced pluripotent stem cells (iPSC) offers a novel platform to investigate mechanisms of VCP disease and potential treatments similar to other disease models including Amyotrophic Lateral Sclerosis (ALS), Duchenne muscular dystrophy (DMD), Parkinson’s disease, Alzheimer’s disease (AD), Best Disease (BD), and type I juvenile diabetes mellitus (T1DM). Herein, we report the generation and characterization of a human iPSC line to examine the cellular and molecular processes underlying VCP disease. The VCP iPSC line expressed specific pluripotency markers NANOG, SSEA4, OCT-4, TRA-1-81 and exhibited characteristic morphology. We differentiated the human iPSC cell line into a neuronal lineage confirmed by TUJ-1 staining, a neuronal class III β-tubulin marker. We detected higher protein expression levels of ubiquitin (Ub), TAR DNA binding protein-43 (TDP-43), Light Chain 3-I/II (LC3), p62/SQSTM1, and optineurin (OPN) in the iPSC neural lineage compared to the control neural line. Collectively, our results demonstrate that patient-specific iPSC technology may provide useful disease modeling for understanding the complex mechanisms and for novel treatments of VCP and related disorders.

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