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Merck
CN
  • miR-24 controls the regenerative competence of hair follicle progenitors by targeting Plk3.

miR-24 controls the regenerative competence of hair follicle progenitors by targeting Plk3.

Cell reports (2021-06-10)
Fengzhen Liu, Xia Zhang, You Peng, Liping Zhang, Yao Yu, Peng Hua, Peiying Zhu, Xinyu Yan, Yin Li, Liang Zhang
摘要

Maintaining a suitable level of sensitivity to environmental cues is crucial for proper function of adult stem cells. Here, we explore how the intrinsic sensitivity of skin hair follicle (HF) progenitors to growth stimuli is dynamically regulated. We discover miR-24 is an miRNA whose expression in HF progenitors inversely correlates with their growth potency in vivo. We show that its upregulation in adult skin epithelium leads to blunted responses of HF progenitors to growth cues and retards hair regeneration, while its conditional ablation leads to hyper-sensitized growth responsiveness of HF progenitors and precocious hair regeneration. Mechanistically, we find that miR-24 limits the intrinsic growth competence of HF progenitor by directly targeting Plk3, whose downregulation leads to reduced expression of CCNE1, a key cyclin for cell-cycle entry. These findings reveal an miRNA-mediated dynamic and cell-intrinsic mechanism used by HF progenitors to adapt their regenerative competence for different physiological conditions.

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Roche
DIG寡核苷酸3′-末端标记试剂盒,第2代, sufficient for 25 labeling reactions (100 pmol of oligonucleotides per assay; 1 ug of a 30-mer oligonucleotide), storage condition avoid repeated freeze/thaw cycles