Abstract
Reprogramming somatic cells to induced pluripotent stem cells (iPSCs) resets their identity back to an embryonic age and, thus, presents a significant hurdle for modeling late-onset disorders. In this study, we describe a strategy for inducing aging-related features in human iPSC-derived lineages and apply it to the modeling of Parkinson's disease (PD). Our approach involves expression of progerin, a truncated form of lamin A associated with premature aging. We found that expression of progerin in iPSC-derived fibroblasts and neurons induces multiple aging-related markers and characteristics, including dopamine-specific phenotypes such as neuromelanin accumulation. Induced aging in PD iPSC-derived dopamine neurons revealed disease phenotypes that require both aging and genetic susceptibility, such as pronounced dendrite degeneration, progressive loss of tyrosine hydroxylase (TH) expression, and enlarged mitochondria or Lewy-body-precursor inclusions. Thus, our study suggests that progerin-induced aging can be used to reveal late-onset age-related disease features in hiPSC-based disease models.
Original language | English (US) |
---|---|
Pages (from-to) | 691-705 |
Number of pages | 15 |
Journal | Cell stem cell |
Volume | 13 |
Issue number | 6 |
DOIs | |
State | Published - Dec 5 2013 |
Funding
We thank the K. Eggan lab for retroviral-derived control iPSCs, Philip Manos for modified-RNA technical advice, C. Klein for PD fibroblasts, Yvonne Mica and Elizabeth Calder for general technical advice and data interpretation, Andreina Gonzalez, Tracey Van Kempen, and Vladimir Mudragel for help in preparing electron microscopy samples, the MSKCC genomics core laboratory for RNA-seq, MSKCC Molecular Cytology Core facility for histology slices, and MSKCC Cytogenetics core facility for karyotyping. D.J.R. is a New York Stem Cell Foundation Robertson Investigator. The work was supported in part by Phil and Marcia Rothblum foundation by NINDS contract NS078338 and by a grant from the Tri-Institutional Stem Cell Initiative (Starr Foundation) to L.S., and NIH grants DA08259 and HL098351 to T.A.M. and NS076054 to D.K. J.D.M was supported by an NSF fellowship.
ASJC Scopus subject areas
- Genetics
- Molecular Medicine
- Cell Biology