論文

査読有り 国際誌
2019年6月18日

ATP turnover and glucose dependency in hematopoietic stem/progenitor cells are increased by proliferation and differentiation.

Biochemical and biophysical research communications
  • Shintaro Watanuki
  • ,
  • Hiroshi Kobayashi
  • ,
  • Yuriko Sorimachi
  • ,
  • Masamichi Yamamoto
  • ,
  • Shinichiro Okamoto
  • ,
  • Keiyo Takubo

514
1
開始ページ
287
終了ページ
294
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.bbrc.2019.04.123

Hematopoietic stem cells (HSCs) are quiescent cells in the bone marrow niche and are relatively dependent on glycolytic ATP production. On the other hand, differentiated cells, including hematopoietic progenitor cells (HPCs), preferentially generate ATP via oxidative phosphorylation. However, it is unclear how cellular differentiation and the cell cycle status affect nutritional requirements and ATP production in HSCs and HPCs. Using a newly developed culture system, we demonstrated that survival of HPCs was strongly dependent on glucose, whereas quiescent HSCs survived for a certain duration without glucose. Among HPCs, granulocyte/monocyte progenitors (GMPs) were particularly dependent on glucose during proliferation. By monitoring the ATP concentration in live cells, we demonstrated that the ATP level was maintained for a short duration without glucose in HSCs, possibly due to their metabolic flexibility. In addition, HSCs exhibited low ATP turnover, whereas HPCs including GMPs demonstrated high ATP turnover and required efficient ATP production from glucose. These findings show that ATP turnover and nutritional requirements differ between HSCs and HPCs according to the cell cycle and differentiation status.

リンク情報
DOI
https://doi.org/10.1016/j.bbrc.2019.04.123
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/31030941
ID情報
  • DOI : 10.1016/j.bbrc.2019.04.123
  • ISSN : 0006-291X
  • PubMed ID : 31030941

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