Reconciling Flux Experiments for Quantitative Modeling of Normal and Malignant Hematopoietic Stem/Progenitor Dynamics

Munetomo Takahashi, Melania Barile, Richard H. Chapple, Yu jung Tseng, Daisuke Nakada, Katrin Busch, Ann Kathrin Fanti, Petter Säwén, David Bryder, Thomas Höfer, Berthold Göttgens

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

Hematopoiesis serves as a paradigm for how homeostasis is maintained within hierarchically organized cell populations. However, important questions remain as to the contribution of hematopoietic stem cells (HSCs) toward maintaining steady state hematopoiesis. A number of in vivo lineage labeling and propagation studies have given rise to contradictory interpretations, leaving key properties of stem cell function unresolved. Using processed flow cytometry data coupled with a biology-driven modeling approach, we show that in vivo flux experiments that come from different laboratories can all be reconciled into a single unifying model, even though they had previously been interpreted as being contradictory. We infer from comparative analysis that different transgenic models display distinct labeling efficiencies across a heterogeneous HSC pool, which we validate by marker gene expression associated with HSC function. Finally, we show how the unified model of HSC differentiation can be used to simulate clonal expansion in the early stages of leukemogenesis.

Originalspråkengelska
Sidor (från-till)741-753
Antal sidor13
TidskriftStem Cell Reports
Volym16
Utgåva4
DOI
StatusPublished - 2021

Ämnesklassifikation (UKÄ)

  • Cell- och molekylärbiologi

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