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Specification of haematopoietic stem cell fate via modulation of mitochondrial activity

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  • Nicola Vannini

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Laboratory of Regenerative Hematopoiesis (GR-NAVEIRAS), Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Mukul Girotra

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Olaia Naveiras

    (Laboratory of Regenerative Hematopoiesis (GR-NAVEIRAS), Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Centre Hospitalier Universitaire Vaudois (CHUV))

  • Gennady Nikitin

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Vasco Campos

    (Laboratory of Regenerative Hematopoiesis (GR-NAVEIRAS), Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Sonja Giger

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Aline Roch

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Johan Auwerx

    (Laboratory of Integrative and Systems Physiology, Institute of Bioengineering, School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL))

  • Matthias P. Lutolf

    (Laboratory of Stem Cell Bioengineering, Institute of Bioengineering, School of Life Sciences and School of Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL)
    Institute of Chemical Sciences and Engineering, School of Basic Science, Ecole Polytechnique Fédérale de Lausanne (EPFL))

Abstract

Haematopoietic stem cells (HSCs) differ from their committed progeny by relying primarily on anaerobic glycolysis rather than mitochondrial oxidative phosphorylation for energy production. However, whether this change in the metabolic program is the cause or the consequence of the unique function of HSCs remains unknown. Here we show that enforced modulation of energy metabolism impacts HSC self-renewal. Lowering the mitochondrial activity of HSCs by chemically uncoupling the electron transport chain drives self-renewal under culture conditions that normally induce rapid differentiation. We demonstrate that this metabolic specification of HSC fate occurs through the reversible decrease of mitochondrial mass by autophagy. Our data thus reveal a causal relationship between mitochondrial metabolism and fate choice of HSCs and also provide a valuable tool to expand HSCs outside of their native bone marrow niches.

Suggested Citation

  • Nicola Vannini & Mukul Girotra & Olaia Naveiras & Gennady Nikitin & Vasco Campos & Sonja Giger & Aline Roch & Johan Auwerx & Matthias P. Lutolf, 2016. "Specification of haematopoietic stem cell fate via modulation of mitochondrial activity," Nature Communications, Nature, vol. 7(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13125
    DOI: 10.1038/ncomms13125
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