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- W3199474346 abstract "Polycomb group protein Bmi1 is essential for hematopoietic stem cell (HSC) self-renewal and terminal differentiation. However, its target genes in hematopoietic stem and progenitor cells are largely unknown. We performed gene expression profiling assays and found that genes of the Wnt signaling pathway are significantly elevated in Bmi1 null hematopoietic stem and progenitor cells (HSPCs). Bmi1 is associated with several genes of the Wnt signaling pathway in hematopoietic cells. Further, we found that Bmi1 represses Wnt gene expression in HSPCs. Importantly, loss of β-catenin, which reduces Wnt activation, partially rescues the HSC self-renewal and differentiation defects seen in the Bmi1 null mice. Thus, we have identified Bmi1 as a novel regulator of Wnt signaling pathway in HSPCs. Given that Wnt signaling pathway plays an important role in hematopoiesis, our studies suggest that modulating Wnt signaling may hold potential for enhancing HSC self-renewal, thereby improving the outcomes of HSC transplantation." @default.
- W3199474346 created "2021-09-27" @default.
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- W3199474346 date "2021-09-24" @default.
- W3199474346 modified "2023-10-17" @default.
- W3199474346 title "Bmi1 Regulates Wnt Signaling in Hematopoietic Stem and Progenitor Cells" @default.
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- W3199474346 doi "https://doi.org/10.1007/s12015-021-10253-4" @default.
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