Enhanced thrombopoietin but not G-CSF receptor stimulation induces self-renewing hematopoietic stem cell divisions in vivo

Abstract excerpt

In steady-state adult hematopoiesis, most hematopoietic stem cells (HSCs) are in the resting phase of the cell cycle. Upon enhanced hematopoietic demand, HSCs can be induced to divide and self-renew or differentiate. However, the cell-extrinsic signals inducing HSC cycling remain to be elucidated. Using in vivo high-resolution single HSC divisional tracking, we directly demonstrate that clinically applied...

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