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Cited by 79

The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.

FLT3-ITD Knockin Impairs Hematopoietic Stem Cell Quiescence/Homeostasis, Leading to Myeloproliferative Neoplasm

Chu, S. Haihua, Heiser, Diane, Li, Li, Kaplan, Ian, Collector, Michael, Huso, David, Sharkis, Saul J., Civin, Curt, Small, Don·2012·Cell Stem Cell

Abstract

SUMMARY Internal tandem duplication (ITD) mutations within the FMS-Like Tyrosine Kinase gene (FLT3) render the receptor constitutively active, driving proliferation and survival in leukemic blasts. Expression of Flt3-ITD from the endogenous promoter in a murine knock-in model results in progenitor expansion and a myeloproliferative neoplasm. In this study, we show that this expansion begins with over-proliferation within a compartment of normally quiescent long-term hematopoietic stem cells (LT-HSCs), which become rapidly depleted. This depletion is reversible upon treatment with the small molecule inhibitor Sorafenib, which also ablates the disease. Although the normal LT-HSC has been defined as Flt3-negative by flow cytometric detection, we demonstrate that Flt3 is capable of playing a role within this compartment by examining the effects of constitutively activated Flt3-ITD. This indicates an important link between stem cell quiescence/homeostasis and myeloproliferative disease while also giving novel insight into the emergence of FLT3-ITD mutations in the evolution of leukemic transformation.

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Crossref · 10.1016/j.stem.2012.05.027

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Metadata

Authors
Chu, S. H., Heiser, D., Li, L., Kaplan, I., Collector, M., Huso, D., Sharkis, S. J., Civin, C., & Small, D.
Venue
Cell Stem Cell
Publisher
Elsevier BV
Published
2012-09
Volume
11
Issue
3
Pages
346-358
ISSN
1934-5909
Cited by
79
References
73
Language
en

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