JAK2-mutant hematopoietic cells display metabolic alterations that can be targeted to treat myeloproliferative neoplasms
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JAK2-mutant hematopoietic cells display metabolic alterations that can be targeted to treat myeloproliferative neoplasms. / Rao, Tata Nageswara; Hansen, Nils; Hilfiker, Julian; Rai, Shivam; Majewska, Julia-Magdalena; Leković, Danijela; Gezer, Deniz; Andina, Nicola; Galli, Serena; Cassel, Teresa; Geier, Florian; Delezie, Julien; Nienhold, Ronny; Hao-Shen, Hui; Beisel, Christian; Di Palma, Serena; Dimeloe, Sarah; Trebicka, Jonel; Wolf, Dominik; Gassmann, Max; Fan, Teresa W-M; Lane, Andrew N; Handschin, Christoph; Dirnhofer, Stefan; Kröger, Nicolaus; Hess, Christoph; Radimerski, Thomas; Koschmieder, Steffen; Čokić, Vladan P; Skoda, Radek C.
in: BLOOD, Jahrgang 134, Nr. 21, 21.11.2019, S. 1832-1846.Publikationen: SCORING: Beitrag in Fachzeitschrift/Zeitung › SCORING: Zeitschriftenaufsatz › Forschung › Begutachtung
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TY - JOUR
T1 - JAK2-mutant hematopoietic cells display metabolic alterations that can be targeted to treat myeloproliferative neoplasms
AU - Rao, Tata Nageswara
AU - Hansen, Nils
AU - Hilfiker, Julian
AU - Rai, Shivam
AU - Majewska, Julia-Magdalena
AU - Leković, Danijela
AU - Gezer, Deniz
AU - Andina, Nicola
AU - Galli, Serena
AU - Cassel, Teresa
AU - Geier, Florian
AU - Delezie, Julien
AU - Nienhold, Ronny
AU - Hao-Shen, Hui
AU - Beisel, Christian
AU - Di Palma, Serena
AU - Dimeloe, Sarah
AU - Trebicka, Jonel
AU - Wolf, Dominik
AU - Gassmann, Max
AU - Fan, Teresa W-M
AU - Lane, Andrew N
AU - Handschin, Christoph
AU - Dirnhofer, Stefan
AU - Kröger, Nicolaus
AU - Hess, Christoph
AU - Radimerski, Thomas
AU - Koschmieder, Steffen
AU - Čokić, Vladan P
AU - Skoda, Radek C
N1 - © 2019 by The American Society of Hematology.
PY - 2019/11/21
Y1 - 2019/11/21
N2 - Increased energy requirement and metabolic reprogramming are hallmarks of cancer cells. We show that metabolic alterations in hematopoietic cells are fundamental to the pathogenesis of mutant JAK2-driven myeloproliferative neoplasms (MPNs). We found that expression of mutant JAK2 augmented and subverted metabolic activity of MPN cells, resulting in systemic metabolic changes in vivo, including hypoglycemia, adipose tissue atrophy, and early mortality. Hypoglycemia in MPN mouse models correlated with hyperactive erythropoiesis and was due to a combination of elevated glycolysis and increased oxidative phosphorylation. Modulating nutrient supply through high-fat diet improved survival, whereas high-glucose diet augmented the MPN phenotype. Transcriptomic and metabolomic analyses identified numerous metabolic nodes in JAK2-mutant hematopoietic stem and progenitor cells that were altered in comparison with wild-type controls. We studied the consequences of elevated levels of Pfkfb3, a key regulatory enzyme of glycolysis, and found that pharmacological inhibition of Pfkfb3 with the small molecule 3PO reversed hypoglycemia and reduced hematopoietic manifestations of MPNs. These effects were additive with the JAK1/2 inhibitor ruxolitinib in vivo and in vitro. Inhibition of glycolysis by 3PO altered the redox homeostasis, leading to accumulation of reactive oxygen species and augmented apoptosis rate. Our findings reveal the contribution of metabolic alterations to the pathogenesis of MPNs and suggest that metabolic dependencies of mutant cells represent vulnerabilities that can be targeted for treating MPNs.
AB - Increased energy requirement and metabolic reprogramming are hallmarks of cancer cells. We show that metabolic alterations in hematopoietic cells are fundamental to the pathogenesis of mutant JAK2-driven myeloproliferative neoplasms (MPNs). We found that expression of mutant JAK2 augmented and subverted metabolic activity of MPN cells, resulting in systemic metabolic changes in vivo, including hypoglycemia, adipose tissue atrophy, and early mortality. Hypoglycemia in MPN mouse models correlated with hyperactive erythropoiesis and was due to a combination of elevated glycolysis and increased oxidative phosphorylation. Modulating nutrient supply through high-fat diet improved survival, whereas high-glucose diet augmented the MPN phenotype. Transcriptomic and metabolomic analyses identified numerous metabolic nodes in JAK2-mutant hematopoietic stem and progenitor cells that were altered in comparison with wild-type controls. We studied the consequences of elevated levels of Pfkfb3, a key regulatory enzyme of glycolysis, and found that pharmacological inhibition of Pfkfb3 with the small molecule 3PO reversed hypoglycemia and reduced hematopoietic manifestations of MPNs. These effects were additive with the JAK1/2 inhibitor ruxolitinib in vivo and in vitro. Inhibition of glycolysis by 3PO altered the redox homeostasis, leading to accumulation of reactive oxygen species and augmented apoptosis rate. Our findings reveal the contribution of metabolic alterations to the pathogenesis of MPNs and suggest that metabolic dependencies of mutant cells represent vulnerabilities that can be targeted for treating MPNs.
U2 - 10.1182/blood.2019000162
DO - 10.1182/blood.2019000162
M3 - SCORING: Journal article
C2 - 31511238
VL - 134
SP - 1832
EP - 1846
JO - BLOOD
JF - BLOOD
SN - 0006-4971
IS - 21
ER -