Targeting IRAK1 in T-Cell acute lymphoblastic leukemia - Inserm - Institut national de la santé et de la recherche médicale Access content directly
Journal Articles Oncotarget Year : 2015

Targeting IRAK1 in T-Cell acute lymphoblastic leukemia

Hervé Dombret


T-cell acute lymphoblastic leukemia (TALL) represents expansion of cells arrested at specific stages of thymic development with the underlying genetic abnormality often determining the stage of maturation arrest. Although their outcome has been improved with current therapy, survival rates remain only around 50% at 5 years and patients may therefore benefit from specific targeted therapy. Interleukin receptor associated kinase 1 (IRAK1) is a ubiquitously expressed serine/threonine kinase that mediates signaling downstream to Toll-like (TLR) and Interleukin-1 Receptors (IL1R). Our data demonstrated that IRAK1 is overexpressed in all subtypes of TALL , compared to normal human thymic subpopulations, and is functional in TALL cell lines. Genetic knock-down of IRAK1 led to apoptosis, cell cycle disruption, diminished proliferation and reversal of corticosteroid resistance in TALL cell lines. However, pharmacological inhibition of IRAK1 using a small molecule inhibitor (IRAK1/4-Inh) only partially reproduced the results of the genetic knock-down. Altogether, our data suggest that IRAK1 is a candidate therapeutic target in TALL and highlight the requirement of next generation IRAK1 inhibitors.


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Dates and versions

inserm-01820237 , version 1 (21-06-2018)


  • HAL Id : inserm-01820237 , version 1


Charles Dussiau, Amélie Trinquand, Ludovic Lhermitte, Mehdi Latiri, Mathieu Simonin, et al.. Targeting IRAK1 in T-Cell acute lymphoblastic leukemia. Oncotarget, 2015, 6 (22), pp.18956-65. ⟨inserm-01820237⟩
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