Derivation and molecular characterization of pancreatic differentiated MODY1-iPSCs

Carmel Braverman-Gross, Neta Nudel, Daniel Ronen, Nicola L. Beer, Mark I. McCarty, Nissim Benvenisty

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Maturity onset diabetes of the young (MODY) is a hereditary form of diabetes mellitus presenting at childhood or adolescence, which eventually leads to pancreatic β-cells dysfunction. The underlying genetic basis of MODY disorders is haploinsufficiency, where loss-of-function mutations in a single allele cause the diabetic phenotype in heterozygous patients. MODY1 is a type of MODY disorder resulting from a mutation in the transcription factor hepatocyte nuclear factor 4 alpha (HNF4α). In order to establish a human based model to study MODY1, we generated patient-derived induced pluripotent stem cells (iPSCs). Differentiation of these pluripotent cells towards the pancreatic lineage enabled to evaluate the effects of the MODY1 mutation and its impact on endodermal and pancreatic cells. Analyzing the gene expression profiles of differentiated MODY1 cells, revealed the outcome of HNF4α haploinsufficiency on its targets. This molecular analysis suggests that the differential expression of HNF4α target genes in MODY1 is affected by the number of HNF4α binding sites, their distance from the transcription start site, and the number of other transcription factor binding sites. These features may help explain the molecular manifestations of haploinsufficiency in MODY1 disease.

Original languageEnglish
Pages (from-to)16-26
Number of pages11
JournalStem Cell Research
Volume31
DOIs
StatePublished - 1 Aug 2018
Externally publishedYes

Keywords

  • Binding sites
  • Differentiation
  • HNF4α
  • MODY1
  • Transcription factor
  • iPS cells

ASJC Scopus subject areas

  • Developmental Biology
  • Cell Biology

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