TY - JOUR
T1 - Antagonism of B cell enhancer networks by STAT5 drives leukemia and poor patient survival
AU - Katerndahl, Casey D S
AU - Heltemes-Harris, Lynn M
AU - Willette, Mark J L
AU - Henzler, Christine M
AU - Frietze, Seth
AU - Yang, Rendong
AU - Schjerven, Hilde
AU - Silverstein, Kevin A T
AU - Ramsey, Laura B
AU - Hubbard, Gregory
AU - Wells, Andrew D
AU - Kuiper, Roland P
AU - Scheijen, Blanca
AU - van Leeuwen, Frank N
AU - Müschen, Markus
AU - Kornblau, Steven M
AU - Farrar, Michael A
N1 - Publisher Copyright:
© 2017 Nature America, Inc., part of Springer Nature. All rights reserved.
PY - 2017/6
Y1 - 2017/6
N2 - The transcription factor STAT5 has a critical role in B cell acute lymphoblastic leukemia (B-ALL). How STAT5 mediates this effect is unclear. Here we found that activation of STAT5 worked together with defects in signaling components of the precursor to the B cell antigen receptor (pre-BCR), including defects in BLNK, BTK, PKCβ, NF-κB1 and IKAROS, to initiate B-ALL. STAT5 antagonized the transcription factors NF-κB and IKAROS by opposing regulation of shared target genes. Super-enhancers showed enrichment for STAT5 binding and were associated with an opposing network of transcription factors, including PAX5, EBF1, PU.1, IRF4 and IKAROS. Patients with a high ratio of active STAT5 to NF-κB or IKAROS had more-aggressive disease. Our studies indicate that an imbalance of two opposing transcriptional programs drives B-ALL and suggest that restoring the balance of these pathways might inhibit B-ALL.
AB - The transcription factor STAT5 has a critical role in B cell acute lymphoblastic leukemia (B-ALL). How STAT5 mediates this effect is unclear. Here we found that activation of STAT5 worked together with defects in signaling components of the precursor to the B cell antigen receptor (pre-BCR), including defects in BLNK, BTK, PKCβ, NF-κB1 and IKAROS, to initiate B-ALL. STAT5 antagonized the transcription factors NF-κB and IKAROS by opposing regulation of shared target genes. Super-enhancers showed enrichment for STAT5 binding and were associated with an opposing network of transcription factors, including PAX5, EBF1, PU.1, IRF4 and IKAROS. Patients with a high ratio of active STAT5 to NF-κB or IKAROS had more-aggressive disease. Our studies indicate that an imbalance of two opposing transcriptional programs drives B-ALL and suggest that restoring the balance of these pathways might inhibit B-ALL.
KW - Adaptor Proteins, Signal Transducing/genetics
KW - Agammaglobulinaemia Tyrosine Kinase
KW - Animals
KW - B-Lymphocytes
KW - Chromatin Immunoprecipitation
KW - Flow Cytometry
KW - Gene Expression Regulation, Neoplastic
KW - Humans
KW - Ikaros Transcription Factor/genetics
KW - Interferon Regulatory Factors/genetics
KW - Mice
KW - Multiplex Polymerase Chain Reaction
KW - NF-kappa B p50 Subunit/genetics
KW - PAX5 Transcription Factor/genetics
KW - Pre-B Cell Receptors/genetics
KW - Precursor Cell Lymphoblastic Leukemia-Lymphoma/genetics
KW - Prognosis
KW - Protein Kinase C beta/genetics
KW - Protein-Tyrosine Kinases/genetics
KW - Proto-Oncogene Proteins/genetics
KW - Real-Time Polymerase Chain Reaction
KW - STAT5 Transcription Factor/metabolism
KW - Signal Transduction
KW - Survival Rate
KW - Trans-Activators/genetics
UR - http://www.scopus.com/inward/record.url?scp=85016928871&partnerID=8YFLogxK
U2 - 10.1038/ni.3716
DO - 10.1038/ni.3716
M3 - Article
C2 - 28369050
SN - 1529-2908
VL - 18
SP - 694
EP - 704
JO - Nature immunology
JF - Nature immunology
IS - 6
ER -