2018年3月6日
Transcription Factor IRF8 Governs Enhancer Landscape Dynamics in Mononuclear Phagocyte Progenitors.
Cell reports
- 巻
- 22
- 号
- 10
- 開始ページ
- 2628
- 終了ページ
- 2641
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1016/j.celrep.2018.02.048
Monocytes and dendritic cells (DCs), mononuclear phagocytes essential for immune responses, develop from hematopoietic stem cells via monocyte-DC progenitors (MDPs). The molecular basis of their development remains unclear. Because promoter-distal enhancers are key to cell fate decisions, we analyzed enhancer landscapes during mononuclear phagocyte development in vivo. Monocyte- and DC-specific enhancers were gradually established at progenitor stages before the expression of associated genes. Of the transcription factors predicted to bind to these enhancers, IRF8, essential for monocyte and DC development, was found to be required for the establishment of these enhancers, particularly those common to both monocyte and DC lineages. Although Irf8-/- mononuclear phagocyte progenitors, including MDPs, displayed grossly normal gene expression patterns, their enhancer landscapes resembled that of an upstream progenitor population. Our results illustrate the dynamic process by which key transcription factors regulate enhancer formation and, therefore, direct future gene expression to achieve mononuclear phagocyte development.
- リンク情報
- ID情報
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- DOI : 10.1016/j.celrep.2018.02.048
- PubMed ID : 29514092