Letter | Published:

Self-renewal of embryonic-stem-cell-derived progenitors by organ-matched mesenchyme

Nature volume 491, pages 765768 (29 November 2012) | Download Citation

Abstract

One goal of regenerative medicine, to use stem cells to replace cells lost by injury or disease, depends on producing an excess of the relevant cell for study or transplantation. To this end, the stepwise differentiation of stem cells into specialized derivatives has been successful for some cell types1,2,3, but a major problem remains the inefficient conversion of cells from one stage of differentiation to the next. If specialized cells are to be produced in large numbers it will be necessary to expand progenitor cells, without differentiation, at some steps of the process. Using the pancreatic lineage as a model for embryonic-stem-cell differentiation, we demonstrate that this is a solvable problem. Co-culture with organ-matched mesenchyme permits proliferation and self-renewal of progenitors, without differentiation, and enables an expansion of more than a million-fold for human endodermal cells with full retention of their developmental potential. This effect is specific both to the mesenchymal cell and to the progenitor being amplified. Progenitors that have been serially expanded on mesenchyme give rise to glucose-sensing, insulin-secreting cells when transplanted in vivo. Theoretically, the identification of stage-specific renewal signals can be incorporated into any scheme for the efficient production of large numbers of differentiated cells from stem cells and may therefore have wide application in regenerative biology.

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Acknowledgements

We thank S. Morrison for providing the Sox17–GFP reporter mouse ESC line and K. Kaestner for the Ngn3–GFP knock-in mouse ESCs. We also thank J. LaVecchio, G. Buruzula and B. Tilton for support for cell sorting, A. Kweudjeu for help with gene-expression experiments and human ESC culture, and C. Xie, C. Balatbat and K. Koszka for technical assistance. We are grateful to A. Tward and D. Cohen for critical reading of the manuscript. We thank J. Annes for assistance in obtaining human tissue samples and acknowledge the use of human tissues provided by the National Disease Research Interchange (NDRI), with support from National Institutes of Health grants 5 U42 RR006042-20 and K08 DK084206. J.B.S. is supported by the Howard Hughes Medical Institute. M.B. was supported by a grant from The Leona M. and Harry B. Helmsley Charitable Trust. D.A.M. is an investigator of the Howard Hughes Medical Institute.

Author information

Author notes

    • Julie B. Sneddon
    •  & Malgorzata Borowiak

    These authors contributed equally to this work.

Affiliations

  1. Department of Stem Cell and Regenerative Biology, Harvard Stem Cell Institute, Harvard University, 7 Divinity Avenue, Cambridge, Massachusetts, 02138 USA

    • Julie B. Sneddon
    • , Malgorzata Borowiak
    •  & Douglas A. Melton

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Contributions

Author Contributions J.B.S., M.B., and D.A.M. conceived and designed the research. J.B.S. and M.B. carried out the experiments, and J.B.S., M.B. and D.A.M. analysed the data and wrote the manuscript.

Competing interests

The authors declare no competing financial interests.

Corresponding author

Correspondence to Douglas A. Melton.

Supplementary information

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    Supplementary Information

    This file contains Supplementary Figures 1-11, Supplementary Tables 1-2 and additional references.

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DOI

https://doi.org/10.1038/nature11463

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