PUBLICATION
RNA-binding protein PUM2 regulates mesenchymal stem cell fate via repression of JAK2 and RUNX2 mRNAs
- Authors
- Lee, M.H., Wu, X., Zhu, Y.
- ID
- ZDB-PUB-191011-16
- Date
- 2019
- Source
- Journal of Cellular Physiology 235(4): 3874-3885 (Journal)
- Registered Authors
- Lee, Myon Hee, Zhu, Yong
- Keywords
- JAK2, PUMILIO2, RUNX2, cell fate decision, mesenchymal stem cells
- MeSH Terms
-
- Adipogenesis/genetics
- Cell Differentiation/genetics*
- Cell Lineage/genetics
- Core Binding Factor Alpha 1 Subunit/genetics*
- Gene Expression Regulation, Developmental/genetics
- Humans
- Janus Kinase 2/genetics*
- Mesenchymal Stem Cells/cytology*
- Osteogenesis/genetics
- RNA, Messenger/genetics
- RNA-Binding Proteins/genetics*
- PubMed
- 31595981 Full text @ J. Cell. Physiol.
Citation
Lee, M.H., Wu, X., Zhu, Y. (2019) RNA-binding protein PUM2 regulates mesenchymal stem cell fate via repression of JAK2 and RUNX2 mRNAs. Journal of Cellular Physiology. 235(4):3874-3885.
Abstract
The differentiation of mesenchymal stem cells (MSCs) into unwanted lineages can generate potential problems in clinical trials. Thus, understanding the molecular mechanisms, involved in this process, would help prevent unexpected complications. Regulation of gene expression, at the posttranscriptional level, is a new approach in cell therapies. PUMILIO is a conserved posttranscriptional regulator. However, the underlying mechanisms of PUMILIO, in vertebrate stem cells, remain elusive. Here, we show that depletion of PUMILIO2 (PUM2) blocks MSC adipogenesis and enhances osteogenesis. We also demonstrate that PUM2 works as a negative regulator on the 3'-untranslated regions of JAK2 and RUNX2 via direct binding. CRISPR/Cas9-mediated gene silencing of Pum2 inhibited lipid accumulation and induced excessive bone formation in zebrafish larvae. Our findings reveal novel roles of PUM2 in MSCs and provide potential therapeutic targets for related diseases.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping