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A 3D system to model human pancreas development and its reference single-cell transcriptome atlas identify signaling pathways required for progenitor expansion

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Vis graf over relationer

Human organogenesis remains relatively unexplored for ethical and practical reasons. Here, we report the establishment of a single-cell transcriptome atlas of the human fetal pancreas between 7 and 10 post-conceptional weeks of development. To interrogate cell-cell interactions, we describe InterCom, an R-Package we developed for identifying receptor-ligand pairs and their downstream effects. We further report the establishment of a human pancreas culture system starting from fetal tissue or human pluripotent stem cells, enabling the long-term maintenance of pancreas progenitors in a minimal, defined medium in three-dimensions. Benchmarking the cells produced in 2-dimensions and those expanded in 3-dimensions to fetal tissue identifies that progenitors expanded in 3-dimensions are transcriptionally closer to the fetal pancreas. We further demonstrate the potential of this system as a screening platform and identify the importance of the EGF and FGF pathways controlling human pancreas progenitor expansion.

OriginalsprogEngelsk
Artikelnummer3144
TidsskriftNature Communications
Vol/bind12
Udgave nummer1
DOI
StatusUdgivet - 25 maj 2021

Bibliografisk note

Funding Information:
We are grateful to Henrik Semb for the HuES4 PDX1-eGFP cell line. We thank the DanStem Genomics Platform, notably Magali Michaut and Helen McNeil, as well as Michaela Rothova for setting up MARS-Seq. We are also grateful to the Stem Cell Culture, Flow Cytometry, and Imaging Facilities and staff at DanStem and MPI-CBG for training, technical expertise, support, and the use of instruments. Data processing and analysis from the Genomics Platform were performed using the DeiC National Life Science Supercomputer at DTU (www.computerome.dk). We thank Josh Brickman for his comments on the manuscript. The Novo Nordisk Foundation Center for Stem Cell Biology is supported by a Novo Nordisk Foundation grant number NNF17CC0027852. The project was supported by grants 7016-00045B from Det Frie Forskningsråd and DNRF 116 from the Danish National Research Foundation to A.G.B.

ID: 65786195