TY - JOUR
T1 - A JAK/STAT-mediated inflammatory signaling cascade drives oncogenesis in AF10-rearranged AML
AU - Chen, Bo Rui
AU - Deshpande, Anagha
AU - Barbosa, Karina
AU - Kleppe, Maria
AU - Lei, Xue
AU - Yeddula, Narayana
AU - Vela, Pablo Sánchez
AU - Campos, Alexandre Rosa
AU - Wechsler-Reya, Robert J.
AU - Bagchi, Anindya
AU - Meshinchi, Soheil
AU - Eaves, Connie
AU - Jeremias, Irmela
AU - Haferlach, Torsten
AU - Frank, David A.
AU - Ronai, Ze'ev
AU - Chanda, Sumit
AU - Armstrong, Scott A.
AU - Adams, Peter D.
AU - Levine, Ross L.
AU - Deshpande, Aniruddha J.
N1 - Publisher Copyright:
© 2021 American Society of Hematology
PY - 2021/6/17
Y1 - 2021/6/17
N2 - Leukemias bearing fusions of the AF10/MLLT10 gene are associated with poor prognosis, and therapies targeting these fusion proteins (FPs) are lacking. To understand mechanisms underlying AF10 fusion-mediated leukemogenesis, we generated inducible mouse models of acute myeloid leukemia (AML) driven by the most common AF10 FPs, PICALM/CALM-AF10 and KMT2A/MLL-AF10, and performed comprehensive characterization of the disease using transcriptomic, epigenomic, proteomic, and functional genomic approaches. Our studies provide a detailed map of gene networks and protein interactors associated with key AF10 fusions involved in leukemia. Specifically, we report that AF10 fusions activate a cascade of JAK/STAT-mediated inflammatory signaling through direct recruitment of JAK1 kinase. Inhibition of the JAK/STAT signaling by genetic Jak1 deletion or through pharmacological JAK/STAT inhibition elicited potent antioncogenic effects in mouse and human models of AF10 fusion AML. Collectively, our study identifies JAK1 as a tractable therapeutic target in AF10-rearranged leukemias.
AB - Leukemias bearing fusions of the AF10/MLLT10 gene are associated with poor prognosis, and therapies targeting these fusion proteins (FPs) are lacking. To understand mechanisms underlying AF10 fusion-mediated leukemogenesis, we generated inducible mouse models of acute myeloid leukemia (AML) driven by the most common AF10 FPs, PICALM/CALM-AF10 and KMT2A/MLL-AF10, and performed comprehensive characterization of the disease using transcriptomic, epigenomic, proteomic, and functional genomic approaches. Our studies provide a detailed map of gene networks and protein interactors associated with key AF10 fusions involved in leukemia. Specifically, we report that AF10 fusions activate a cascade of JAK/STAT-mediated inflammatory signaling through direct recruitment of JAK1 kinase. Inhibition of the JAK/STAT signaling by genetic Jak1 deletion or through pharmacological JAK/STAT inhibition elicited potent antioncogenic effects in mouse and human models of AF10 fusion AML. Collectively, our study identifies JAK1 as a tractable therapeutic target in AF10-rearranged leukemias.
UR - http://www.scopus.com/inward/record.url?scp=85108583209&partnerID=8YFLogxK
U2 - 10.1182/blood.2020009023
DO - 10.1182/blood.2020009023
M3 - Article
C2 - 33690798
AN - SCOPUS:85108583209
SN - 0006-4971
VL - 137
SP - 3403
EP - 3415
JO - Blood
JF - Blood
IS - 24
ER -