1. Correction to Supporting Information for Qadir et al., Single-cell resolution analysis of the human pancreatic ductal progenitor cell niche
- Author
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Anthony J. Griswold, Giacomo Lanzoni, Camillo Ricordi, Kevin R. Johnson, Michael T. García, Juan Domínguez-Bendala, Ángela Díaz, Mirza Muhammad Fahd Qadir, Silvia Álvarez-Cubela, Dagmar Klein, Ricardo L. Pastori, Saad Sadiq, David W. Sant, Jasmijn van Dijk, Belén Navarro-Rubio, Yaisa B. Moreno-Hernández, and Rocío Muñiz-Anquela
- Subjects
Male ,type 1 diabetes ,Cell ,Niche ,Islets of Langerhans Transplantation ,islet regeneration ,Biology ,single-cell RNA sequencing ,Mice ,Receptors, Purinergic P2Y1 ,Insulin-Secreting Cells ,medicine ,Animals ,Humans ,Pancreatic carcinoma ,Progenitor cell ,Pancreas ,Bone Morphogenetic Protein Receptors, Type I ,Multidisciplinary ,Stem Cells ,Resolution (electron density) ,Pancreatic Ducts ,Cell Differentiation ,Cell Biology ,Biological Sciences ,Activins ,medicine.anatomical_structure ,Diabetes Mellitus, Type 1 ,SI Correction ,Diabetes Mellitus, Type 2 ,Models, Animal ,human pancreatic progenitors ,Cancer research ,Female ,Single-Cell Analysis ,Transcriptome ,transplantation - Abstract
Significance The existence of progenitors within pancreatic ducts has been studied for decades, but the hypothesis that they may help regenerate the adult endocrine compartment (chiefly insulin-producing β-cells) remains contentious. Here, we examine the single-cell transcriptome of the human ductal tree. Our data confirm the paradigm-shifting notion that specific lineages, long thought to be cast in stone, are in fact in a state of flux between differentiation stages. In addition to pro-ductal and pro-acinar transcriptomic gradients, our analysis suggests the existence of a third (ducto-endocrine) differentiation axis. Such prediction was experimentally validated by transplanting sorted progenitor-like cells, which revealed their tri-lineage differentiation potential. Our findings further indicate that progenitors might be activated in situ for therapeutic purposes., We have described multipotent progenitor-like cells within the major pancreatic ducts (MPDs) of the human pancreas. They express PDX1, its surrogate surface marker P2RY1, and the bone morphogenetic protein (BMP) receptor 1A (BMPR1A)/activin-like kinase 3 (ALK3), but not carbonic anhydrase II (CAII). Here we report the single-cell RNA sequencing (scRNA-seq) of ALK3bright+-sorted ductal cells, a fraction that harbors BMP-responsive progenitor-like cells. Our analysis unveiled the existence of multiple subpopulations along two major axes, one that encompasses a gradient of ductal cell differentiation stages, and another featuring cells with transitional phenotypes toward acinar tissue. A third potential ducto-endocrine axis is revealed upon integration of the ALK3bright+ dataset with a single-cell whole-pancreas transcriptome. When transplanted into immunodeficient mice, P2RY1+/ALK3bright+ populations (enriched in PDX1+/ALK3+/CAII− cells) differentiate into all pancreatic lineages, including functional β-cells. This process is accelerated when hosts are treated systemically with an ALK3 agonist. We found PDX1+/ALK3+/CAII− progenitor-like cells in the MPDs of types 1 and 2 diabetes donors, regardless of the duration of the disease. Our findings open the door to the pharmacological activation of progenitor cells in situ.
- Published
- 2021