Current published protocols for targeted differentiation of human stem cells toward pancreatic β-cells fail to deliver sufficiently mature cells with functional properties comparable to human islet β-cells. We aimed to assess whether Wnt-modulation could promote the final protocol stages of…
Tag: collaboration
Collaboration Paper: glucose-sensing insulin-secreting human α-cells
Cell-identity switches, in which terminally differentiated cells are converted into different cell types when stressed, represent a widespread regenerative strategy in animals, yet they are poorly documented in mammals. In mice, some glucagon-producing pancreatic α-cells and somatostatin-producing δ-cells become insulin-expressing…
Research Paper: Specific protein signatures related to progression to muscular invasiveness in bladder cancer
Collaboration Paper: Signals modulating identity changes of pancreatic α-cells
The mechanisms that restrict regeneration and maintain cell identity following injury are poorly characterized in higher vertebrates. Following β-cell loss, 1-2% of the glucagon-producing α-cells spontaneously engage in insulin production in mice. Here we explore the mechanisms inhibiting α-cell plasticity.…
Research Paper: β-cell proteomic landscape in differentiating MODY1 patient iPSC-derived cells
Collaboration Paper: Converting Adult Pancreatic Islet α Cells into β Cells by Dnmt1-Arx
Chakravarthy et al. dissect the mechanisms maintaining α cell identity and reveal that simultaneous inactivation of the DNA methyltransferase Dnmt1 and the transcription factor Arx in adult mice drives the conversion of α- to β-like cells. In human T1D islets, glucagon+ cells lose DNMT1 and ARX expression and express β cell markers.