Paxbp1 is indispensable for cell cycle re-entry of adult muscle stem cells
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Adult muscle stem cells (MuSCs) transit from a quiescent state to a highly proliferative state to support muscle repair. Paxbp1 deletion in MuSCs blocked their cell cycle re-entry and caused subsequent muscle regeneration failures. To understand the underlying molecular mechanisms, we compared the transcriptomes of control and Paxbp1 mutant MuSCs by RNA-seq. Our data confirmed a marked repression of cell cycle machineries in Paxbp1 mutant MuSCs. We also uncovered down-regulation of mutliple metabolic pathways in mutant MuSCs. In summary, our study highlights an essential role of Paxbp1 in MuSCs growth and cell cycle re-entry.
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HKUST创建时间：
2022-02-20
