Induced pluripotent stem cells with a mitochondrial dna deletion

Anne B.C. Cherry, Katelyn E. Gagne, Erin M. McLoughlin, Anna Baccei, Bryan Gorman, Odelya Hartung, Justine D. Miller, Jin Zhang, Rebecca L. Zon, Tan A. Ince, Ellis J. Neufeld, Paul H. Lerou, Mark D. Fleming, George Q. Daley, Suneet Agarwal

Research output: Contribution to journalArticle

61 Scopus citations

Abstract

In congenital mitochondrial DNA (mtDNA) disorders, a mixture of normal and mutated mtDNA (termed heteroplasmy) exists at varying levels in different tissues, which determines the severity and phenotypic expression of disease. Pearson marrow pancreas syndrome (PS) is a congenital bone marrow failure disorder caused by heteroplasmic deletions in mtDNA. The cause of the hematopoietic failure in PS is unknown, and adequate cellular and animal models are lacking. Induced pluripotent stem (iPS) cells are particularly amenable for studying mtDNA disorders, as cytoplasmic genetic material is retained during direct reprogramming. Here, we derive and characterize iPS cells from a patient with PS. Taking advantage of the tendency for heteroplasmy to change with cell passage, we isolated isogenic PS-iPS cells without detectable levels of deleted mtDNA. We found that PS-iPS cells carrying a high burden of deleted mtDNA displayed differences in growth, mitochondrial function, and hematopoietic phenotype when differentiated in vitro, compared to isogenic iPS cells without deleted mtDNA. Our results demonstrate that reprogramming somatic cells from patients with mtDNA disorders can yield pluripotent stem cells with varying burdens of heteroplasmy that might be useful in the study and treatment of mitochondrial diseases.

Original languageEnglish (US)
Pages (from-to)1287-1297
Number of pages11
JournalStem Cells
Volume31
Issue number7
DOIs
StatePublished - Jul 1 2013
Externally publishedYes

Keywords

  • Hematopoiesis
  • Heteroplasmy
  • Human genetics
  • Induced pluripotent stem cells
  • Mitochondrial DNA
  • Pearson's marrow pancreas syndrome

ASJC Scopus subject areas

  • Cell Biology
  • Developmental Biology
  • Molecular Medicine

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  • Cite this

    Cherry, A. B. C., Gagne, K. E., McLoughlin, E. M., Baccei, A., Gorman, B., Hartung, O., Miller, J. D., Zhang, J., Zon, R. L., Ince, T. A., Neufeld, E. J., Lerou, P. H., Fleming, M. D., Daley, G. Q., & Agarwal, S. (2013). Induced pluripotent stem cells with a mitochondrial dna deletion. Stem Cells, 31(7), 1287-1297. https://doi.org/10.1002/stem.1354