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Modelling pathogenesis and treatment of familial dysautonomia using patient-specific iPSCs

Nature volume 461, pages 402406 (17 September 2009) | Download Citation

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Abstract

The isolation of human induced pluripotent stem cells (iPSCs)1,2,3 offers a new strategy for modelling human disease. Recent studies have reported the derivation and differentiation of disease-specific human iPSCs4,5,6,7. However, a key challenge in the field is the demonstration of disease-related phenotypes and the ability to model pathogenesis and treatment of disease in iPSCs. Familial dysautonomia (FD) is a rare but fatal peripheral neuropathy, caused by a point mutation in the IKBKAP8 gene involved in transcriptional elongation9. The disease is characterized by the depletion of autonomic and sensory neurons. The specificity to the peripheral nervous system and the mechanism of neuron loss in FD are poorly understood owing to the lack of an appropriate model system. Here we report the derivation of patient-specific FD-iPSCs and the directed differentiation into cells of all three germ layers including peripheral neurons. Gene expression analysis in purified FD-iPSC-derived lineages demonstrates tissue-specific mis-splicing of IKBKAP in vitro. Patient-specific neural crest precursors express particularly low levels of normal IKBKAP transcript, suggesting a mechanism for disease specificity. FD pathogenesis is further characterized by transcriptome analysis and cell-based assays revealing marked defects in neurogenic differentiation and migration behaviour. Furthermore, we use FD-iPSCs for validating the potency of candidate drugs in reversing aberrant splicing and ameliorating neuronal differentiation and migration. Our study illustrates the promise of iPSC technology for gaining new insights into human disease pathogenesis and treatment.

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Acknowledgements

We thank J. Hendrikx, M. Leversha and C. Zhao for technical help. The work was supported by grants from the Starr Foundation and NYSTEM, by the New York Stem Cell Foundation (NYCSF, Druckenmiller fellowships to G.L. and C.A.F.) and by the Starr Scholar fellowship to S.M.C.

Author Contributions G.L.: conception and study design, maintenance and directed differentiation of iPSCs, cellular/molecular assays for disease modelling, data assembly, analysis and interpretation, and writing of manuscript; E.P.P., H.K. and C.A.F.: iPSC clone derivation and maintenance; S.M.C., M.J.T. and A.V.: data collection, analysis and interpretation; Y.M.G., J.M. and F.S.: in vivo experiments and histological analyses; V.T. and M.S.: study design, data analysis and interpretation; L.S.: conception and study design, data analysis and interpretation, and writing of manuscript.

Author information

Affiliations

  1. Developmental Biology Program,

    • Gabsang Lee
    • , Hyesoo Kim
    • , Stuart M. Chambers
    • , Mark J. Tomishima
    • , Christopher A. Fasano
    • , Yosif M. Ganat
    •  & Lorenz Studer
  2. Center for Cell Engineering,

    • Eirini P. Papapetrou
    • , Mark J. Tomishima
    • , Viviane Tabar
    • , Michel Sadelain
    •  & Lorenz Studer
  3. SKI Stem Cell Research Facility,

    • Mark J. Tomishima
  4. Department of Neurosurgery,

    • Jayanthi Menon
    • , Fumiko Shimizu
    • , Viviane Tabar
    •  & Lorenz Studer
  5. Genomics Core Facility, Sloan-Kettering Institute, 1275 York Ave,

    • Agnes Viale
  6. Weill Cornell Graduate School, New York, New York 10065, USA

    • Yosif M. Ganat

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Corresponding author

Correspondence to Lorenz Studer.

Supplementary information

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    Supplementary Information

    This file contains Supplementary Figures 1-11 with Legends and Supplementary Tables 1-3.

Videos

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    Supplementary Movie 1

    This movie, shows in real-time beating putative cardiomyocytes derived from FD human iPS cell line (clone#22).

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DOI

https://doi.org/10.1038/nature08320

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