PUBLICATION

Single-cell resolution of MET- and EMT-like programs in osteoblasts during zebrafish fin regeneration

Authors
Tang, W.J., Watson, C.J., Olmstead, T., Allan, C.H., Kwon, R.Y.
ID
ZDB-PUB-220217-1
Date
2022
Source
iScience   25: 103784 (Journal)
Registered Authors
Kwon, Ronald, Watson, Claire
Keywords
Biological sciences, Developmental biology, Omics, Transcriptomics
Datasets
GEO:GSE192498
MeSH Terms
none
PubMed
35169687 Full text @ iScience
Abstract
Zebrafish regenerate fin rays following amputation through epimorphic regeneration, a process that has been proposed to involve the epithelial-to-mesenchymal transition (EMT). We performed single-cell RNA sequencing (scRNA-seq) to elucidate osteoblastic transcriptional programs during zebrafish caudal fin regeneration. We show that osteoprogenitors are enriched with components associated with EMT and its reverse, mesenchymal-to-epithelial transition (MET), and provide evidence that the EMT markers cdh11 and twist2 are co-expressed in dedifferentiating cells at the amputation stump at 1 dpa, and in differentiating osteoblastic cells in the regenerate, the latter of which are enriched in EMT signatures. We also show that esrp1, a regulator of alternative splicing in epithelial cells that is associated with MET, is expressed in a subset of osteoprogenitors during outgrowth. This study provides a single cell resource for the study of osteoblastic cells during zebrafish fin regeneration, and supports the contribution of MET- and EMT-associated components to this process.
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Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
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Mapping