Walker Lab

Wayne State University Medical School



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Emily Walker

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Center for Molecular Medicine and Genetics

Wayne State University

Scott Hall, Rm. 3218
540 E. Canfield Ave
Detroit, MI 48201




Walker Lab

Wayne State University Medical School



Center for Molecular Medicine and Genetics

Wayne State University

Scott Hall, Rm. 3218
540 E. Canfield Ave
Detroit, MI 48201



Loss of the transcription factor MAFB limits β-cell derivation from human PSCs


Journal article


Ronan Russell, Phichitpol P. Carnese, Thomas G. Hennings, E. Walker, H. Russ, Jennifer S. Liu, Simone Giacometti, R. Stein, M. Hebrok
Nature Communications, 2020

Semantic Scholar DOI PubMedCentral PubMed
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APA   Click to copy
Russell, R., Carnese, P. P., Hennings, T. G., Walker, E., Russ, H., Liu, J. S., … Hebrok, M. (2020). Loss of the transcription factor MAFB limits β-cell derivation from human PSCs. Nature Communications.


Chicago/Turabian   Click to copy
Russell, Ronan, Phichitpol P. Carnese, Thomas G. Hennings, E. Walker, H. Russ, Jennifer S. Liu, Simone Giacometti, R. Stein, and M. Hebrok. “Loss of the Transcription Factor MAFB Limits β-Cell Derivation from Human PSCs.” Nature Communications (2020).


MLA   Click to copy
Russell, Ronan, et al. “Loss of the Transcription Factor MAFB Limits β-Cell Derivation from Human PSCs.” Nature Communications, 2020.


BibTeX   Click to copy

@article{ronan2020a,
  title = {Loss of the transcription factor MAFB limits β-cell derivation from human PSCs},
  year = {2020},
  journal = {Nature Communications},
  author = {Russell, Ronan and Carnese, Phichitpol P. and Hennings, Thomas G. and Walker, E. and Russ, H. and Liu, Jennifer S. and Giacometti, Simone and Stein, R. and Hebrok, M.}
}

Abstract

Next generation sequencing studies have highlighted discrepancies in β-cells which exist between mice and men. Numerous reports have identified MAF BZIP Transcription Factor B (MAFB) to be present in human β-cells postnatally, while its expression is restricted to embryonic and neo-natal β-cells in mice. Using CRISPR/Cas9-mediated gene editing, coupled with endocrine cell differentiation strategies, we dissect the contribution of MAFB to β-cell development and function specifically in humans. Here we report that MAFB knockout hPSCs have normal pancreatic differentiation capacity up to the progenitor stage, but favor somatostatin- and pancreatic polypeptide–positive cells at the expense of insulin- and glucagon-producing cells during endocrine cell development. Our results describe a requirement for MAFB late in the human pancreatic developmental program and identify it as a distinguishing transcription factor within islet cell subtype specification. We propose that hPSCs represent a powerful tool to model human pancreatic endocrine development and associated disease pathophysiology. The MAF bZIP transcription factor B (MAFB) is present in postnatal human beta cells but its role is unclear. Here, the authors show that MAFB regulates endocrine pancreatic cell fate specification.


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