MicroRNA Target Sites as Genetic Tools to Enhance Promoter-Reporter Specificity for the Purification of Pancreatic Progenitor Cells from Differentiated Embryonic Stem Cells

2012 ◽  
Vol 9 (5) ◽  
pp. 555-568 ◽  
Author(s):  
Ulf Diekmann ◽  
Matthias Elsner ◽  
Jan Fiedler ◽  
Thomas Thum ◽  
Sigurd Lenzen ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Progenitor Cells ◽  
Embryonic Stem ◽  
Microrna Target ◽  
Genetic Tools ◽  
Pancreatic Progenitor ◽  
Pancreatic Progenitor Cells ◽  
Target Sites

scholarly journals Use of RUNX2 Expression to Identify Osteogenic Progenitor Cells Derived from Human Embryonic Stem Cells

2015 ◽  
Vol 4 (2) ◽  
pp. 190-198 ◽  
Author(s):  
Li Zou ◽  
Fahad K. Kidwai ◽  
Ross A. Kopher ◽  
Jason Motl ◽  
Cory A. Kellum ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Progenitor Cells ◽  
Human Embryonic Stem Cells ◽  
Embryonic Stem ◽  
Runx2 Expression

scholarly journals Small molecule AT7867 proliferates PDX1-expressing pancreatic progenitor cells derived from human pluripotent stem cells

2017 ◽  
Vol 24 ◽  
pp. 61-68 ◽  
Author(s):  
Azuma Kimura ◽  
Taro Toyoda ◽  
Yohei Nishi ◽  
Makoto Nasu ◽  
Akira Ohta ◽  
...  
Keyword(s):  
Stem Cells ◽  
Progenitor Cells ◽  
Small Molecule ◽  
Pluripotent Stem Cells ◽  
Human Pluripotent Stem Cells ◽  
Pancreatic Progenitor ◽  
Pancreatic Progenitor Cells

scholarly journals Induction of Recurrent Break Cluster Genes in Neural Progenitor Cells Differentiated from Embryonic Stem Cells In Culture

2019 ◽  
Author(s):  
Aseda Tena ◽  
Yuxiang Zhang ◽  
Nia Kyritsis ◽  
Anne Devorak ◽  
Jeffrey Zurita ◽  
...  
Keyword(s):  
Stem Cells ◽  
Embryonic Stem Cells ◽  
Progenitor Cells ◽  
Es Cells ◽  
Embryonic Stem ◽  
Neural Progenitors ◽  
Neural Genes ◽  
Genome Wide ◽  
Primary Mouse

ABSTRACTMild replication stress enhances appearance of dozens of robust recurrent genomic break clusters, termed RDCs, in cultured primary mouse neural stem and progenitor cells (NSPCs). Robust RDCs occur within genes (“RDC-genes”) that are long and have roles in neural cell communications and/or have been implicated in neuropsychiatric diseases or cancer. We sought to develop an in vitro approach to determine whether specific RDC formation is associated with neural development. For this purpose, we adapted a system to induce neural progenitor cell (NPC) development from mouse embryonic stem cell (ESC) lines deficient for XRCC4 plus p53, a genotype that enhances DNA double-strand break (DSB) persistence to enhance detection. We tested for RDCs by our genome wide DSB identification approach that captures DSBs genome-wide via their ability to join to specific genomic Cas9/sgRNA-generated bait DSBs. In XRCC4/p53-deficient ES cells, we detected 7 RDCs, which were in genes, with two RDCs being robust. In contrast, in NPCs derived from these ES cell lines, we detected 29 RDCs, a large fraction of which were robust and associated with long, transcribed neural genes that were also robust RDC-genes in primary NSPCs. These studies suggest that many RDCs present in NSPCs are developmentally influenced to occur in this cell type and indicate that induced development of NPCs from ES cells provides an approach to rapidly elucidate mechanistic aspects of NPC RDC formation.SIGNIFICANCE STATEMENTWe previously discovered a set of long neural genes susceptible to frequent DNA breaks in primary mouse brain progenitor cells. We termed these genes RDC-genes. RDC-gene breakage during brain development might alter neural gene function and contribute to neurological diseases and brain cancer. To provide an approach to characterize the unknown mechanism of neural RDC-gene breakage, we asked whether RDC-genes appear in neural progenitors differentiated from embryonic stem cells in culture. Indeed, robust RDC-genes appeared in neural progenitors differentiated in culture and many overlapped with robust RDC-genes in primary brain progenitors. These studies indicate that in vitro development of neural progenitors provides a model system for elucidating how RDC-genes are formed.

scholarly journals Human Fetal Bone Marrow-Derived Mesenchymal Stem Cells Promote the Proliferation and Differentiation of Pancreatic Progenitor Cells and the Engraftment Function of Islet-Like Cell Clusters

2019 ◽  
Vol 20 (17) ◽  
pp. 4083
Author(s):  
Xing Yu Li ◽  
Shang Ying Wu ◽  
Po Sing Leung
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Progenitor Cells ◽  
Pancreatic Progenitor ◽  
Pancreatic Progenitor Cells ◽  
Proliferation And Differentiation ◽  
Differentiation And Proliferation

Pancreatic progenitor cells (PPCs) are the primary source for all pancreatic cells, including beta-cells, and thus the proliferation and differentiation of PPCs into islet-like cell clusters (ICCs) opens an avenue to providing transplantable islets for diabetic patients. Meanwhile, mesenchymal stem cells (MSCs) can enhance the development and function of different cell types of interest, but their role on PPCs remains unknown. We aimed to explore the mechanism-of-action whereby MSCs induce the in vitro and in vivo PPC/ICC development by means of our established co-culture system of human PPCs with human fetal bone marrow-derived MSCs. We examined the effect of MSC-conditioned medium on PPC proliferation and survival. Meanwhile, we studied the effect of MSC co-culture enhanced PPC/ICC function in vitro and in vivo co-/transplantation. Furthermore, we identified IGF1 as a critical factor responsible for the MSC effects on PPC differentiation and proliferation via IGF1-PI3K/Akt and IGF1-MEK/ERK1/2, respectively. In conclusion, our data indicate that MSCs stimulated the differentiation and proliferation of human PPCs via IGF1 signaling, and more importantly, promoted the in vivo engraftment function of ICCs. Taken together, our protocol may provide a mechanism-driven basis for the proliferation and differentiation of PPCs into clinically transplantable islets.

scholarly journals Genetic Modification of Primate Amniotic Fluid-Derived Stem Cells Produces Pancreatic Progenitor Cells in vitro

2013 ◽  
Vol 197 (4) ◽  
pp. 269-282 ◽  
Author(s):  
Yu Zhou ◽  
David L. Mack ◽  
J. Koudy Williams ◽  
Sayed-Hadi Mirmalek-Sani ◽  
Emily Moorefield ◽  
...  
Keyword(s):  
Stem Cells ◽  
Amniotic Fluid ◽  
Progenitor Cells ◽  
Genetic Modification ◽  
Pancreatic Progenitor ◽  
Pancreatic Progenitor Cells
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