RIPK3 Restricts Myeloid Leukemogenesis by Promoting Cell Death and Differentiation of Leukemia Initiating Cells

Autor: Jürgen Ruland, Thomas Engleitner, Enkhtsetseg Munkhbaatar, Stephanie Rott, Johanna Kauschinger, Michael Heuser, Giovanni Magnani, Philipp J. Jost, Mathias Heikenwalder, Karl Sotlar, Ulrike Höckendorf, Julia Slotta-Huspenina, Hans Kreipe, Monica Yabal, Tobias Herold, Olaf Groß, Karsten Spiekermann, Christian Peschel, Wilko Weichert, Roland Rad, Stefanie Jilg, Florian Reisinger
Rok vydání: 2016
Předmět:
Zdroj: Cancer Cell 30, 75-91 (2016)
ISSN: 1535-6108
Popis: Since acute myeloid leukemia (AML) is characterized by the blockade of hematopoietic differentiation and cell death, we interrogated RIPK3 signaling in AML development. Genetic loss of Ripk3 converted murine FLT3-ITD-driven myeloproliferation into an overt AML by enhancing the accumulation of leukemia-initiating cells (LIC). Failed inflammasome activation and cell death mediated by tumor necrosis factor receptor caused this accumulation of LIC exemplified by accelerated leukemia onset in Il1r1(-/-), Pycard(-/-), and Tnfr1/2(-/-) mice. RIPK3 signaling was partly mediated by mixed lineage kinase domain-like. This link between suppression of RIPK3, failed interleukin-1β release, and blocked cell death was supported by significantly reduced RIPK3 in primary AML patient cohorts. Our data identify RIPK3 and the inflammasome as key tumor suppressors in AML.
Databáze: OpenAIRE