Cord blood-derived neuronal cells by ectopic expression of Sox2 and c-Myc

Alessandra Giorgetti, Maria Marchetto, Mo Li, Diana Yu, Raffaella Fazzina, Yangling Mu, Antonio Adamo, Ida Paramonov, Julio Cardoso, Montserrat Monasterio, Cedric Bardy, Riccardo Cassiani-Ingoni, Guang Liu, Fred Gage, Juan Belmonte

    Research output: Contribution to journalArticlepeer-review

    50 Citations (Scopus)

    Abstract

    The finding that certain somatic cells can be directly converted into cells of other lineages by the delivery of specific sets of transcription factors paves the way to novel therapeutic applications. Here we show that human cord blood (CB) CD133+ cells lose their hematopoietic signature and are converted into CB-induced neuronal- like cells (CB-iNCs) by the ectopic expression of the transcription factor Sox2, a process that is further augmented by the combination of Sox2 and c-Myc. Gene-expression analysis, immunophenotyping, and electrophysiological analysis show that CB-iNCs acquire a distinct neuronal phenotype characterized by the expression of multiple neuronal markers. CB-iNCs show the ability to fire action potentials after in vitro maturation as well as after in vivo transplantation into the mouse hippocampus. This system highlights the potential of CB cells and offers an alternative means to the study of cellular plasticity, possibly in the context of drug screening research and of future cell-replacement therapies.

    Original languageEnglish
    Pages (from-to)12556-12561
    Number of pages6
    JournalProceedings of the National Academy of Sciences of the United States of America
    Volume109
    Issue number31
    DOIs
    Publication statusPublished - 31 Jul 2012

    Keywords

    • Neurons
    • Reprogramming
    • Stem cells

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