Cellular Programming and Reprogramming

Volume 636 of the series Methods in Molecular Biology pp 251-283


Adult Cell Fate Reprogramming: Converting Liver to Pancreas

  • Irit Meivar-LevyAffiliated withSheba Medical Center, Endocrine InstituteDepartment of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University
  • , Sarah FerberAffiliated withEndocrine Institute, Sheba Medical CenterDepartment of Human Genetics and Molecular Medicine, Sackler School of Medicine, Tel-Aviv University

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Regenerative medicine aims at producing new cells for repair or replacement of diseased and damaged tissues. Embryonic and adult stem cells have been suggested as attractive sources of cells for generating the new cells needed. The leading dogma was that adult cells in mammals, once committed to a specific lineage, become “terminally differentiated” and can no longer change their fate. However, in recent years increasing evidence has accumulated demonstrating the remarkable ability of some differentiated cells to be converted into a different cell type via a process termed developmental redirection or adult cells reprogramming. For example, abundant human cell types, such as dermal fibroblasts and adipocytes, could potentially be harvested and converted into other, medically important cell types, such as neurons, cardiomyocytes, or pancreatic β cells. In this chapter, we describe a method of activating the pancreatic lineage and β-cells function in adult human liver cells by ectopic expression of pancreatic transcription factors. This approach aims to generate custom-made autologous surrogate β cells for treatment of diabetes, and possibly bypass both the shortage of cadaveric human donor tissues and the need for life-long immune-suppression.

Key words

Liver Pancreas Beta-cells Transcription factors Adult cells reprogramming Insulin production and secretion Transdifferentiation