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Yang J, Ruan J, Zhou B, Ye S, Gao S, Zheng X. Regulation of STAT5 phosphorylation and interaction with SHP1 by lnc-AC004893, a long non-coding RNA overexpressed in myeloproliferative neoplasms. Hematology 2024; 29:2375045. [PMID: 39012197 DOI: 10.1080/16078454.2024.2375045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 06/25/2024] [Indexed: 07/17/2024] Open
Abstract
OBJECTIVES Constitutive activation of Janus kinase 2 (JAK2)/signal transducer and activator of transcription (STAT) signaling pathway is central to the pathogenesis of myeloproliferative neoplasms (MPNs). Long noncoding RNAs (lncRNAs) regulate diverse biological processes. However, the role of lncRNAs in MPN pathogenesis is not well studied. METHODS The expression of lnc-AC004893 in MPN patients was measured by quantitative real-time PCR (qRT-PCR). Gene-specific short hairpin RNAs (shRNAs) were designed to inhibit the expression of lnc-AC004893, and western blot was performed to explore the role of lnc-AC004893 via regulating the JAK2/STAT5 signaling pathway. Furthermore, co-IP was performed to determine the binding ability of lnc-AC004893 and STAT5 protein. Finally, the BaF3-JAK2V617F-transplanted mouse model was used to assess the biological role of lnc-ac004893 in vivo. RESULTS We report that lnc-AC004893, a poorly conserved pseudogene-209, is substantially upregulated in MPN cells compared with normal controls (NCs). Knockdown of lnc-AC004893 by specific shRNAs suppressed cell proliferation and decreased colony formation. Furthermore, the knockdown of lnc-AC004893 reduced the expression of p-STAT5 but not total STAT5 in HEL and murine IL-3-dependent Ba/F3 cells, which present constitutive and inducible activation of JAK2/STAT5 signaling. In addition, inhibition of murine lnc-ac004893 attenuated BaF3-JAK2V617F-transplanted phenotypes and extended the overall survival. Mechanistically, knockdown of lnc-AC004893 enhanced the binding ability of STAT5 and protein tyrosine phosphatase SHP1. Furthermore, knockdown of lnc-AC004893 decreased STAT5-lnc-AC004893 interaction but not SHP1-lnc-AC004893 interaction. CONCLUSION Lnc-AC004893 regulates STAT5 phosphorylation by affecting the interaction of STAT5 and SHP1. Lnc-AC004893 might be a potential therapeutic target for MPN patients.
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Affiliation(s)
- Junjun Yang
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Jichen Ruan
- Department of Hematology, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Bin Zhou
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Sisi Ye
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Shenmeng Gao
- Medical Research Center, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
| | - Xiaoqun Zheng
- Department of Laboratory Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China
- School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, People's Republic of China
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2
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Awah CU, Mun JS, Paragodaarachchi A, Boylu B, Ochu C, Matsui H, Ogunwobi OO. The Engineered Drug 3'UTRMYC1-18 Degrades the c-MYC-STAT5A/B-PD-L1 Complex In Vivo to Inhibit Metastatic Triple-Negative Breast Cancer. Cancers (Basel) 2024; 16:2663. [PMID: 39123391 PMCID: PMC11311709 DOI: 10.3390/cancers16152663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/21/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
c-MYC is overexpressed in 70% of human cancers, including triple-negative breast cancer (TNBC), yet there is no clinically approved drug that directly targets it. Here, we engineered the mRNA-stabilizing poly U sequences within the 3'UTR of c-MYC to specifically destabilize and promote the degradation of c-MYC transcripts. Interestingly, the engineered derivative outcompetes the endogenous overexpressed c-MYC mRNA, leading to reduced c-MYC mRNA and protein levels. The iron oxide nanocages (IO-nanocages) complexed with MYC-destabilizing constructs inhibited primary and metastatic tumors in mice bearing TNBC and significantly prolonged survival by degrading the c-MYC-STAT5A/B-PD-L1 complexes that drive c-MYC-positive TNBC. Taken together, we have described a novel therapy for c-MYC-driven TNBC and uncovered c-MYC-STAT5A/B-PD-L1 interaction as the target.
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Affiliation(s)
- Chidiebere U. Awah
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY 14850, USA
| | - Joo Sun Mun
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
| | - Aloka Paragodaarachchi
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
- Ph.D. Program in Chemistry, The Graduate Center, City University of New York, New York, NY 10016, USA
| | - Baris Boylu
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
| | - Chika Ochu
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
| | - Hiroshi Matsui
- Department of Chemistry, Hunter College, City University of New York, New York, NY 10065, USA
- Ph.D. Program in Biochemistry, The Graduate Center, City University of New York, New York, NY 10016, USA
- Department of Biochemistry, Weill Cornell Medicine, Cornell University, New York, NY 14850, USA
| | - Olorunseun O. Ogunwobi
- Department of Biological Sciences, Hunter College, City University of New York, New York, NY 10065, USA
- Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, Cornell University, New York, NY 14850, USA
- Hunter College for Cancer Health Disparities Research, Hunter College, City University of New York, New York, NY 10065, USA
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3
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Yu G, Zhang W, Basyal M, Nishida Y, Mizumo H, Ly C, Zhang H, Rice WG, Andreeff M. The multi-kinase inhibitor CG-806 exerts anti-cancer activity against acute myeloid leukemia by co-targeting FLT3, BTK, and aurora kinases. Leuk Lymphoma 2024:1-16. [PMID: 38871487 DOI: 10.1080/10428194.2024.2364839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Accepted: 06/01/2024] [Indexed: 06/15/2024]
Abstract
Despite the development of several Fms-like tyrosine kinase 3 (FLT3) inhibitors that have improved outcomes in patients with FLT3-mutant acute myeloid leukemia (AML), drug resistance is frequently observed, which may be associated with the activation of additional pro-survival pathways, such as those regulated by BTK, aurora kinases (AuroK), and potentially others, in addition to acquired tyrosine kinase domain (TKD) mutations of FLT3 gene. FLT3 may not always be a driver mutation. We evaluated the anti-leukemia efficacy of the novel multi-kinase inhibitor CG-806, which targets FLT3 and other kinases, to circumvent drug resistance and target FLT3 wild-type (WT) cells. The anti-leukemia activity of CG-806 was investigated by measuring apoptosis induction and analyzing the cell cycle using flow cytometry in vitro. CG-806 demonstrated superior anti-leukemia efficacy compared to commercially available FLT3 inhibitors, both in vitro and in vivo, regardless of FLT3 mutational status. The mechanism of action of CG-806 may involve its broad inhibitory profile against FLT3, BTK, and AuroK. In FLT3 mutant cells, CG-806 induced G1 phase blockage, whereas in FLT3 WT cells, it resulted in G2/M phase arrest. Targeting FLT3 and Bcl-2 and/or Mcl-1 simultaneously results in a synergistic pro-apoptotic effect in FLT3 mutant leukemia cells. The results of this study suggest that CG-806 is a promising multi-kinase inhibitor with anti-leukemic efficacy regardless of FLT3 mutational status. A phase 1 clinical trial of CG-806 for the treatment of AML has been initiated (NCT04477291).Key pointsThe multi-kinase inhibitor CG-806 exerts superior anti-leukemic activity in AML, regardless of its FLT3 status.CG-806 triggered G1 arrest in FLT3 mutated cells and G2/M arrest in FLT3 WT cells through the suppression of FLT3/BTK and aurora kinases.Concomitantly targeting FLT3 and Bcl-2 and/or Mcl-1 exerted synergistic pro-apoptotic effects on both FLT3 WT and mutated AML cells.
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Affiliation(s)
- Guopan Yu
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weiguo Zhang
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mahesh Basyal
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Yuki Nishida
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Hideaki Mizumo
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Charlie Ly
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | | | | | - Michael Andreeff
- Department of Leukemia, Section of Molecular Hematology and Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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4
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Wang M, Chen Q, Wang S, Xie H, Liu J, Huang R, Xiang Y, Jiang Y, Tian D, Bian E. Super-enhancers complexes zoom in transcription in cancer. J Exp Clin Cancer Res 2023; 42:183. [PMID: 37501079 PMCID: PMC10375641 DOI: 10.1186/s13046-023-02763-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 07/13/2023] [Indexed: 07/29/2023] Open
Abstract
Super-enhancers (SEs) consist of multiple typical enhancers enriched at high density with transcription factors, histone-modifying enzymes and cofactors. Oncogenic SEs promote tumorigenesis and malignancy by altering protein-coding gene expression and noncoding regulatory element function. Therefore, they play central roles in the treatment of cancer. Here, we review the structural characteristics, organization, identification, and functions of SEs and the underlying molecular mechanism by which SEs drive oncogenic transcription in tumor cells. We then summarize abnormal SE complexes, SE-driven coding genes, and noncoding RNAs involved in tumor development. In summary, we believe that SEs show great potential as biomarkers and therapeutic targets.
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Affiliation(s)
- MengTing Wang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China
| | - QingYang Chen
- Department of Clinical MedicineThe Second School of Clinical Medical, Anhui Medical University, Hefei, China
| | - ShuJie Wang
- Department of Clinical MedicineThe Second School of Clinical Medical, Anhui Medical University, Hefei, China
| | - Han Xie
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China
| | - Jun Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China
| | - RuiXiang Huang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China
| | - YuFei Xiang
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China
| | - YanYi Jiang
- Anhui Province Key Laboratory of Medical Physics and Technology, Institute of Health and Medical Technology, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China.
- Hefei Cancer Hospital, Chinese Academy of Sciences, Hefei, 230031, China.
| | - DaSheng Tian
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China.
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China.
| | - ErBao Bian
- Department of Orthopaedics, The Second Affiliated Hospital of Anhui Medical University, 678 Fu Rong Road, Hefei, 230601, Anhui Province, China.
- Institute of Orthopaedics, Research Center for Translational Medicine, The Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, 230601, China.
- School of Pharmacy, Anhui Medical University, Hefei, 230032, China.
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5
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Yashar WM, Curtiss BM, Coleman DJ, VanCampen J, Kong G, Macaraeg J, Estabrook J, Demir E, Long N, Bottomly D, McWeeney SK, Tyner JW, Druker BJ, Maxson JE, Braun TP. Disruption of the MYC Superenhancer Complex by Dual Targeting of FLT3 and LSD1 in Acute Myeloid Leukemia. Mol Cancer Res 2023; 21:631-647. [PMID: 36976323 PMCID: PMC10330306 DOI: 10.1158/1541-7786.mcr-22-0745] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/25/2023] [Accepted: 03/24/2023] [Indexed: 03/29/2023]
Abstract
Mutations in Fms-like tyrosine kinase 3 (FLT3) are common drivers in acute myeloid leukemia (AML) yet FLT3 inhibitors only provide modest clinical benefit. Prior work has shown that inhibitors of lysine-specific demethylase 1 (LSD1) enhance kinase inhibitor activity in AML. Here we show that combined LSD1 and FLT3 inhibition induces synergistic cell death in FLT3-mutant AML. Multi-omic profiling revealed that the drug combination disrupts STAT5, LSD1, and GFI1 binding at the MYC blood superenhancer, suppressing superenhancer accessibility as well as MYC expression and activity. The drug combination simultaneously results in the accumulation of repressive H3K9me1 methylation, an LSD1 substrate, at MYC target genes. We validated these findings in 72 primary AML samples with the nearly every sample demonstrating synergistic responses to the drug combination. Collectively, these studies reveal how epigenetic therapies augment the activity of kinase inhibitors in FLT3-ITD (internal tandem duplication) AML. IMPLICATIONS This work establishes the synergistic efficacy of combined FLT3 and LSD1 inhibition in FLT3-ITD AML by disrupting STAT5 and GFI1 binding at the MYC blood-specific superenhancer complex.
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Affiliation(s)
- William M. Yashar
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- Department of Biomedical Engineering, Oregon Health & Science University; Portland, OR, 97239, USA
- These authors contributed equally to this work
| | - Brittany M. Curtiss
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- These authors contributed equally to this work
| | - Daniel J. Coleman
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Jake VanCampen
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Garth Kong
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Jommel Macaraeg
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Joseph Estabrook
- Cancer Early Detection Advanced Research Center, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Emek Demir
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- Department of Molecular and Medical Genetics, Oregon Health and Science University, 3181 SW Sam Jackson Park Rd; Portland, OR 97239, USA
- Pacific Northwest National Laboratories; Richland, WA 99354, USA
| | - Nicola Long
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Daniel Bottomly
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Bioinformatics and Computational Biology, Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Shannon K. McWeeney
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Bioinformatics and Computational Biology, Department of Medical Informatics and Clinical Epidemiology, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Jeffrey W. Tyner
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- Department of Cell, Developmental & Cancer Biology, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Brian J. Druker
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Julia E. Maxson
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
| | - Theodore P. Braun
- Knight Cancer Institute, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Oncologic Sciences, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
- Division of Hematology & Medical Oncology, Department of Medicine, Oregon Health & Science University; Portland, OR, 97239, USA
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6
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Khameneh HJ, Fonta N, Zenobi A, Niogret C, Ventura P, Guerra C, Kwee I, Rinaldi A, Pecoraro M, Geiger R, Cavalli A, Bertoni F, Vivier E, Trumpp A, Guarda G. Myc controls NK cell development, IL-15-driven expansion, and translational machinery. Life Sci Alliance 2023; 6:e202302069. [PMID: 37105715 PMCID: PMC10140547 DOI: 10.26508/lsa.202302069] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/19/2023] [Accepted: 04/19/2023] [Indexed: 04/29/2023] Open
Abstract
MYC is a pleiotropic transcription factor involved in cancer, cell proliferation, and metabolism. Its regulation and function in NK cells, which are innate cytotoxic lymphocytes important to control viral infections and cancer, remain poorly defined. Here, we show that mice deficient for Myc in NK cells presented a severe reduction in these lymphocytes. Myc was required for NK cell development and expansion in response to the key cytokine IL-15, which induced Myc through transcriptional and posttranslational mechanisms. Mechanistically, Myc ablation in vivo largely impacted NK cells' ribosomagenesis, reducing their translation and expansion capacities. Similar results were obtained by inhibiting MYC in human NK cells. Impairing translation by pharmacological intervention phenocopied the consequences of deleting or blocking MYC in vitro. Notably, mice lacking Myc in NK cells exhibited defective anticancer immunity, which reflected their decreased numbers of mature NK cells exerting suboptimal cytotoxic functions. These results indicate that MYC is a central node in NK cells, connecting IL-15 to translational fitness, expansion, and anticancer immunity.
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Affiliation(s)
- Hanif J Khameneh
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Nicolas Fonta
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Alessandro Zenobi
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Charlène Niogret
- Department of Biochemistry, University of Lausanne, Epalinges, Switzerland
| | - Pedro Ventura
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Concetta Guerra
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Ivo Kwee
- BigOmics Analytics SA, Lugano, Switzerland
| | - Andrea Rinaldi
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute of Oncology Research, Bellinzona, Switzerland
| | - Matteo Pecoraro
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
| | - Roger Geiger
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute of Oncology Research, Bellinzona, Switzerland
| | - Andrea Cavalli
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
- Swiss Institute of Bioinformatics, Lausanne, Switzerland
| | - Francesco Bertoni
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute of Oncology Research, Bellinzona, Switzerland
- Oncology Institute of Southern Switzerland, Ente Ospedaliero Cantonale, Bellinzona, Switzerland
| | - Eric Vivier
- Aix-Marseille Université, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, Centre d'Immunologie de Marseille-Luminy, Marseille, France
- Innate Pharma Research Laboratories, Marseille, France
- APHM, Hôpital de la Timone, Marseille-Immunopôle, Marseille, France
| | - Andreas Trumpp
- Division of Stem Cells and Cancer, DKFZ, Heidelberg, Germany
- HI-STEM: The Heidelberg Institute for Stem Cell Technology and Experimental Medicine gGmbH, Heidelberg, Germany
| | - Greta Guarda
- Università della Svizzera italiana, Faculty of Biomedical Sciences, Institute for Research in Biomedicine, Bellinzona, Switzerland
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7
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Robb CT, Zhou Y, Felton JM, Zhang B, Goepp M, Jheeta P, Smyth DJ, Duffin R, Vermeren S, Breyer R, Narumiya S, McSorley HJ, Maizels RM, Schwarze JKJ, Rossi AG, Yao C. Metabolic regulation by prostaglandin E 2 impairs lung group 2 innate lymphoid cell responses. Allergy 2023; 78:714-730. [PMID: 36181709 PMCID: PMC10952163 DOI: 10.1111/all.15541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 09/15/2022] [Accepted: 09/18/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Group 2 innate lymphoid cells (ILC2s) play a critical role in asthma pathogenesis. Non-steroidal anti-inflammatory drug (NSAID)-exacerbated respiratory disease (NERD) is associated with reduced signaling via EP2, a receptor for prostaglandin E2 (PGE2 ). However, the respective roles for the PGE2 receptors EP2 and EP4 (both share same downstream signaling) in the regulation of lung ILC2 responses has yet been deciphered. METHODS The roles of PGE2 receptors EP2 and EP4 on ILC2-mediated lung inflammation were investigated using genetically modified mouse lines and pharmacological approaches in IL-33-induced lung allergy model. The effects of PGE2 receptors and downstream signals on ILC2 metabolic activation and effector function were examined using in vitro cell cultures. RESULTS Deficiency of EP2 rather than EP4 augments IL-33-induced mouse lung ILC2 responses and eosinophilic inflammation in vivo. In contrast, exogenous agonism of EP4 and EP2 or inhibition of phosphodiesterase markedly restricts IL-33-induced lung ILC2 responses. Mechanistically, PGE2 directly suppresses IL-33-dependent ILC2 activation through the EP2/EP4-cAMP pathway, which downregulates STAT5 and MYC pathway gene expression and ILC2 energy metabolism. Blocking glycolysis diminishes IL-33-dependent ILC2 responses in mice where endogenous PG synthesis or EP2 signaling is blocked but not in mice with intact PGE2 -EP2 signaling. CONCLUSION We have defined a mechanism for optimal suppression of mouse lung ILC2 responses by endogenous PGE2 -EP2 signaling which underpins the clinical findings of defective EP2 signaling in patients with NERD. Our findings also indicate that exogenously targeting the PGE2 -EP4-cAMP and energy metabolic pathways may provide novel opportunities for treating the ILC2-initiated lung inflammation in asthma and NERD.
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Affiliation(s)
- Calum T. Robb
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - You Zhou
- Systems Immunity University Research Institute and Division of Infection and ImmunityCardiff UniversityCardiffUK
| | - Jennifer M. Felton
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Birong Zhang
- Systems Immunity University Research Institute and Division of Infection and ImmunityCardiff UniversityCardiffUK
| | - Marie Goepp
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Privjyot Jheeta
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Danielle J. Smyth
- Division of Cell Signaling and Immunology, School of Life SciencesWellcome Trust Building, University of DundeeDundeeUK
| | - Rodger Duffin
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Sonja Vermeren
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Richard M. Breyer
- Department of Veterans AffairsTennessee Valley Health AuthorityNashvilleTennesseeUSA
- Department of MedicineVanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Shuh Narumiya
- Alliance Laboratory for Advanced Medical Research and Department of Drug Discovery Medicine, Medical Innovation CenterKyoto University Graduate School of MedicineKyotoJapan
| | - Henry J. McSorley
- Division of Cell Signaling and Immunology, School of Life SciencesWellcome Trust Building, University of DundeeDundeeUK
| | - Rick M. Maizels
- Wellcome Centre for Molecular Parasitology, Institute for Infection, Immunity and InflammationUniversity of GlasgowGlasgowUK
| | - Jürgen K. J. Schwarze
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Adriano G. Rossi
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
| | - Chengcan Yao
- Centre for Inflammation Research, Queen's Medical Research InstituteThe University of EdinburghEdinburghUK
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8
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Ma D, Liu P, Hu C, Zhou Z, Wang P, Wang Y, Zhang Y, Ran Y, Li P, Zhao J, Wang J, Zhang C, Tang L. Intracellular angiopoietin-1 promotes TKI-resistance via activation of JAK/STAT5 pathway in chronic myeloid leukemia. Oncogene 2023; 42:124-137. [PMID: 36385374 DOI: 10.1038/s41388-022-02536-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 10/10/2022] [Accepted: 10/28/2022] [Indexed: 11/18/2022]
Abstract
Drug resistance from BCR-ABL tyrosine kinase inhibitors (TKIs) and other chemotherapeutics results in treatment failure and disease progression in chronic myeloid leukemia (CML). However, the mechanism is still uncertain. In this study, we investigated the role of angiopoietin-1 (ANG-1) as a potential prognostic factor for drug resistance in CML. Both intracellular and secretory ANG-1 (iANG-1 and sANG-1) were overexpressed in multidrug-resistant CML samples. The IC50 value was higher in primary CD34+ CD38- cells with more ANG-1. Silencing ANG-1significantly sensitized three TKI-resistant CML cell lines to imatinib (IM) while recombinant human ANG-1 failed to retain cell survival in vitro. This indicated the important role of iANG-1 as opposed to sANG-1 in CML drug resistance. Moreover, a similar effect was observed in xenograft mice models bearing ANG-1-silenced CML cells. Subsequently, pathway analysis and protein validation experiments showed activation of the JAK/STAT pathway and augmentation of STAT5a phosphorylation in ANG-1 restored CML cells. Upstream Src phosphorylation, which plays a crucial role in CML drug resistance, was also upregulated as a key event in iANG-1-related JAK/STAT pathway activation. In conclusion, our study elucidated a new BCR-ABL independent molecular mechanism induced by intracytoplasmic ANG-1 overexpression as a potential strategy for overcoming CML resistance.
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Affiliation(s)
- Dan Ma
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.,Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550004, China
| | - Ping Liu
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Chujiao Hu
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550004, China
| | - Zhen Zhou
- Department of Pharmacy, Affiliated Baiyun Hospital of Guizhou Medical University, Guiyang, 550014, China
| | - Ping Wang
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Yan Wang
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Yaming Zhang
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Yunsheng Ran
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550004, China
| | - Pinghao Li
- Department of Pathology, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Jiangyuan Zhao
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China
| | - Jishi Wang
- Department of Hematology, Key Laboratory of Hematological Disease Diagnostic & Treat Centre of Guizhou Province, Affiliated Hospital of Guizhou Medical University, Guiyang, 550004, China.
| | - Chengliang Zhang
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
| | - Lei Tang
- Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, Guiyang, 550004, China.
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9
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Kye YC, Lee GW, Lee SW, Ju YJ, Kim HO, Yun CH, Cho JH. STAT1 maintains naïve CD8 + T cell quiescence by suppressing the type I IFN-STAT4-mTORC1 signaling axis. SCIENCE ADVANCES 2021; 7:eabg8764. [PMID: 34516905 PMCID: PMC8442933 DOI: 10.1126/sciadv.abg8764] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Accepted: 07/13/2021] [Indexed: 06/13/2023]
Abstract
Naïve CD8+ T cell quiescence is maintained at a steady state. Although this state of quiescence involves various cell-intrinsic and cell-extrinsic regulators, the mechanisms underlying this regulation remain incompletely understood. Here, we found that signal transducer and activator of transcription 1 (STAT1), a key transcription factor downstream of interferon receptor (IFNR) signaling, plays a cell-intrinsic role in maintaining naïve CD8+ T cell quiescence. STAT1-deficient mice showed enhanced proliferation of peripheral naïve CD8+ T cells, which resulted in an abnormal increase in the number of CD44hi memory/activated phenotype cells and an enlargement of secondary lymphoid tissues. This phenomenon was not observed in IFNR-deficient mice but was paradoxically dependent on type I interferon and its alternative signaling pathway via the STAT4–RagD–lysosomal mTORC1 axis. Collectively, these findings underline the importance of STAT1 in regulating the homeostasis of peripheral naïve CD8+ T cells by suppressing their responsiveness to homeostatic cues at a steady state.
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Affiliation(s)
- Yoon-Chul Kye
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Gil-Woo Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Korea
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Sung-Woo Lee
- Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology, Pohang 37673, Korea
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Young-Jun Ju
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Hee-Ok Kim
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
| | - Cheol-Heui Yun
- Department of Agricultural Biotechnology, and Research Institute of Agriculture and Life Sciences, Seoul National University, Seoul 08826, Korea
- Institutes of Green-bio Science and Technology, Seoul National University, Pyeongchang 25354, Korea
| | - Jae-Ho Cho
- Department of Microbiology and Immunology and Medical Research Center for Combinatorial Tumor Immunotherapy, Chonnam National University Medical School, Hwasun 58128, Korea
- Immunotherapy Innovation Center, Hwasun Hospital, Chonnam National University Medical School, Hwasun 58128, Korea
- Biomedical Sciences Graduate Program, Chonnam National University, Hwasun 58128, Korea
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10
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Pocock R, Farah N, Richardson SE, Mansour MR. Current and emerging therapeutic approaches for T-cell acute lymphoblastic leukaemia. Br J Haematol 2021; 194:28-43. [PMID: 33942287 DOI: 10.1111/bjh.17310] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
T-cell ALL (T-ALL) is an aggressive malignancy of T-cell progenitors. Although survival outcomes in T-ALL have greatly improved over the past 50 years, relapsed and refractory cases remain extremely challenging to treat and those who cannot tolerate intensive treatment continue to have poor outcomes. Furthermore, T-ALL has proven a more challenging immunotherapeutic target than B-ALL. In this review we explore our expanding knowledge of the basic biology of T-ALL and how this is paving the way for repurposing established treatments and the development of novel therapeutic approaches.
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Affiliation(s)
- Rachael Pocock
- Department of Haematology, UCL Cancer Institute, University College London, London, UK
| | - Nadine Farah
- Department of Haematology, UCL Cancer Institute, University College London, London, UK
| | - Simon E Richardson
- Wellcome-MRC Cambridge Stem Cell Institute, University of Cambridge, Cambridge, UK
- Department of Haematology, University of Cambridge, Jeffrey Cheah Biomedical Centre, Cambridge, UK
| | - Marc R Mansour
- Department of Haematology, UCL Cancer Institute, University College London, London, UK
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11
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Przedborski M, Sharon D, Chan S, Kohandel M. A mean-field approach for modeling the propagation of perturbations in biochemical reaction networks. Eur J Pharm Sci 2021; 165:105919. [PMID: 34175448 DOI: 10.1016/j.ejps.2021.105919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/17/2021] [Accepted: 06/20/2021] [Indexed: 12/12/2022]
Abstract
Often, the time evolution of a biochemical reaction network is crucial for determining the effects of combining multiple pharmaceuticals. Here we illustrate a mathematical framework for modeling the dominant temporal behaviour of a complicated molecular pathway or biochemical reaction network in response to an arbitrary perturbation, such as resulting from the administration of a therapeutic agent. The method enables the determination of the temporal evolution of a target protein as the perturbation propagates through its regulatory network. The mathematical approach is particularly useful when the experimental data that is available for characterizing or parameterizing the regulatory network is limited or incomplete. To illustrate the method, we consider the examples of the regulatory networks for the target proteins c-Myc and Chop, which play an important role in venetoclax resistance in acute myeloid leukemia. First we show how the networks that regulate each target protein can be reduced to a mean-field model by identifying the distinct effects that groups of proteins in the regulatory network have on the target protein. Then we show how limited protein-level data can be used to further simplify the mean-field model to pinpoint the dominant effects of the network perturbation on the target protein. This enables a further reduction in the number of parameters in the model. The result is an ordinary differential equation model that captures the temporal evolution of the expression of a target protein when one or more proteins in its regulatory network have been perturbed. Finally, we show how the dominant effects predicted by the mathematical model agree with RNA sequencing data for the regulatory proteins comprising the molecular network, despite the model not having a priori knowledge of this data. Thus, while the approach gives a simplified model for the expression of the target protein, it allows for the interpretation of the effects of the perturbation on the regulatory network itself. This method can be easily extended to sets of target proteins to model components of a larger systems biology model, and provides an approach for partially integrating RNA sequencing data and protein expression data. Moreover, it is a general approach that can be used to study drug effects on specific protein(s) in any disease or condition.
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Affiliation(s)
- Michelle Przedborski
- Department of Applied Mathematics, University of Waterloo, Waterloo, ON, Canada.
| | - David Sharon
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Steven Chan
- Princess Margaret Cancer Centre, Toronto, ON, Canada
| | - Mohammad Kohandel
- Department of Applied Mathematics, University of Waterloo, Waterloo, ON, Canada
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12
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Lv M, Zhu S, Peng H, Cheng Z, Zhang G, Wang Z. B-cell acute lymphoblastic leukemia-related microRNAs: uncovering their diverse and special roles. Am J Cancer Res 2021; 11:1104-1120. [PMID: 33948348 PMCID: PMC8085864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 02/14/2021] [Indexed: 06/12/2023] Open
Abstract
B-cell acute lymphoblastic leukemia (B-ALL) is a common type of hematologic malignancy characterized by the uncontrolled growth of immature B lymphocytes. Genomics, transcriptomics, and proteomics at different levels contribute to early diagnosis and can thereby provide better treatment for cancer. MicroRNAs (miRNAs) are conducive to the diagnosis and treatment of patients with B-ALL. Moreover, evidence suggests that runaway miRNAs and exosomes containing miRNA may be involved in the occurrence of B-ALL, which can then be used as potential biomarkers. This review summarizes the role of miRNAs in the pathogenesis, diagnosis, prognosis, and treatment of B-ALL.
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Affiliation(s)
- Mengqi Lv
- Department of Hematology, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Institute of Molecular Hematology, Central South UniversityChangsha, Hunan, China
| | - Shicong Zhu
- Department of Geriatrics, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
| | - Hongling Peng
- Department of Hematology, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Institute of Molecular Hematology, Central South UniversityChangsha, Hunan, China
| | - Zhao Cheng
- Department of Hematology, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Institute of Molecular Hematology, Central South UniversityChangsha, Hunan, China
| | - Guangsen Zhang
- Department of Hematology, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Institute of Molecular Hematology, Central South UniversityChangsha, Hunan, China
| | - Zhihua Wang
- Department of Hematology, The Second Xiangya Hospital, Central South UniversityChangsha, Hunan, China
- Institute of Molecular Hematology, Central South UniversityChangsha, Hunan, China
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13
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Loontiens S, Vanhauwaert S, Depestel L, Dewyn G, Van Loocke W, Moore FE, Garcia EG, Batchelor L, Borga C, Squiban B, Malone-Perez M, Volders PJ, Olexiouk V, Van Vlierberghe P, Langenau DM, Frazer JK, Durinck K, Speleman F. A novel TLX1-driven T-ALL zebrafish model: comparative genomic analysis with other leukemia models. Leukemia 2020; 34:3398-3403. [PMID: 32591643 PMCID: PMC7906429 DOI: 10.1038/s41375-020-0938-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 06/14/2020] [Accepted: 06/16/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Siebe Loontiens
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Suzanne Vanhauwaert
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Lisa Depestel
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Givani Dewyn
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Wouter Van Loocke
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Finola E Moore
- Department of Pathology, Massachusetts General Hospital Research Institute, Boston, MA, 02114, USA
- Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA
- Harvard Stem Cell Institute, Boston, MA, 02114, USA
- Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Elaine G Garcia
- Department of Pathology, Massachusetts General Hospital Research Institute, Boston, MA, 02114, USA
- Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA
- Harvard Stem Cell Institute, Boston, MA, 02114, USA
- Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Lance Batchelor
- Section of Pediatric Hematology-Oncology, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Chiara Borga
- Section of Pediatric Hematology-Oncology, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Barbara Squiban
- Section of Pediatric Hematology-Oncology, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Megan Malone-Perez
- Section of Pediatric Hematology-Oncology, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Pieter-Jan Volders
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Volodimir Olexiouk
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - Pieter Van Vlierberghe
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
| | - David M Langenau
- Department of Pathology, Massachusetts General Hospital Research Institute, Boston, MA, 02114, USA
- Center of Cancer Research, Massachusetts General Hospital, Charlestown, MA, 02129, USA
- Harvard Stem Cell Institute, Boston, MA, 02114, USA
- Center of Regenerative Medicine, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - J Kimble Frazer
- Section of Pediatric Hematology-Oncology, Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
| | - Kaat Durinck
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium.
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium.
| | - Frank Speleman
- Department of Biomolecular Medicine, Ghent University, Ghent, Belgium
- Cancer Research Institute Ghent (CRIG), Ghent, Belgium
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14
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Polak A, Bialopiotrowicz E, Krzymieniewska B, Wozniak J, Stojak M, Cybulska M, Kaniuga E, Mikula M, Jablonska E, Gorniak P, Noyszewska-Kania M, Szydlowski M, Piechna K, Piwocka K, Bugajski L, Lech-Maranda E, Barankiewicz J, Kolkowska-Lesniak A, Patkowska E, Glodkowska-Mrowka E, Baran N, Juszczynski P. SYK inhibition targets acute myeloid leukemia stem cells by blocking their oxidative metabolism. Cell Death Dis 2020; 11:956. [PMID: 33159047 PMCID: PMC7648638 DOI: 10.1038/s41419-020-03156-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Revised: 10/17/2020] [Accepted: 10/19/2020] [Indexed: 12/15/2022]
Abstract
Spleen tyrosine kinase (SYK) is an important oncogene and signaling mediator activated by cell surface receptors crucial for acute myeloid leukemia (AML) maintenance and progression. Genetic or pharmacologic inhibition of SYK in AML cells leads to increased differentiation, reduced proliferation, and cellular apoptosis. Herein, we addressed the consequences of SYK inhibition to leukemia stem-cell (LSC) function and assessed SYK-associated pathways in AML cell biology. Using gain-of-function MEK kinase mutant and constitutively active STAT5A, we demonstrate that R406, the active metabolite of a small-molecule SYK inhibitor fostamatinib, induces differentiation and blocks clonogenic potential of AML cells through the MEK/ERK1/2 pathway and STAT5A transcription factor, respectively. Pharmacological inhibition of SYK with R406 reduced LSC compartment defined as CD34+CD38−CD123+ and CD34+CD38−CD25+ in vitro, and decreased viability of LSCs identified by a low abundance of reactive oxygen species. Primary leukemic blasts treated ex vivo with R406 exhibited lower engraftment potential when xenotransplanted to immunodeficient NSG/J mice. Mechanistically, these effects are mediated by disturbed mitochondrial biogenesis and suppression of oxidative metabolism (OXPHOS) in LSCs. These mechanisms appear to be partially dependent on inhibition of STAT5 and its target gene MYC, a well-defined inducer of mitochondrial biogenesis. In addition, inhibition of SYK increases the sensitivity of LSCs to cytarabine (AraC), a standard of AML induction therapy. Taken together, our findings indicate that SYK fosters OXPHOS and participates in metabolic reprogramming of AML LSCs in a mechanism that at least partially involves STAT5, and that SYK inhibition targets LSCs in AML. Since active SYK is expressed in a majority of AML patients and confers inferior prognosis, the combination of SYK inhibitors with standard chemotherapeutics such as AraC constitutes a new therapeutic modality that should be evaluated in future clinical trials.
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Affiliation(s)
- Anna Polak
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Emilia Bialopiotrowicz
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Beata Krzymieniewska
- Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Jolanta Wozniak
- Department of Diagnostic Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Marta Stojak
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, Kraków, Poland
| | - Magdalena Cybulska
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Ewelina Kaniuga
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Michał Mikula
- Department of Genetics, Maria Sklodowska-Curie National Research Institute of Oncology, Warsaw, Poland
| | - Ewa Jablonska
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Patryk Gorniak
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Monika Noyszewska-Kania
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Maciej Szydlowski
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Karolina Piechna
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Katarzyna Piwocka
- Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Lukasz Bugajski
- Laboratory of Cytometry, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Ewa Lech-Maranda
- Department of Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Joanna Barankiewicz
- Department of Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | | | - Elzbieta Patkowska
- Department of Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Eliza Glodkowska-Mrowka
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland
| | - Natalia Baran
- Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Przemyslaw Juszczynski
- Department of Experimental Hematology, Institute of Hematology and Transfusion Medicine, Warsaw, Poland.
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15
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Abstract
Epigenetic mechanisms involve the placing (writing) or removal (erasing) of histone modifications that allow heterochromatin to transition to the open, activated euchromatin state necessary for transcription. A third, less studied epigenetic pathway involves the reading of these specific histone marks once placed. The BETs (bromodomain and extraterminal-containing protein family), which includes BRD2, BRD3, and BRD4 and the testis-restricted BRDT, are epigenetic reader proteins that bind to specific acetylated lysine residues on histone tails where they facilitate the assembly of transcription complexes including transcription factors and transcriptional machinery like RNA Polymerase II. As reviewed here, considerable recent data establishes BETs as novel determinants of induced transcriptional programs in vascular cells, like endothelial cells and vascular smooth muscle cells, cardiac myocytes and inflammatory cells, like monocyte/macrophages, cellular settings where these epigenetic reader proteins couple proximal stimuli to chromatin, acting at super-enhancer regulatory regions to direct gene expression. BET inhibition, including the use of specific chemical BET inhibitors like JQ-1, has many reported effects in vivo in the cardiovascular setting, like decreasing atherosclerosis, angiogenesis, intimal hyperplasia, pulmonary arterial hypertension, and cardiac hypertrophy. At the same time, data in endothelial cells, adipocytes, and elsewhere suggest BETs also help regulate gene expression under basal conditions. Studies in the cardiovascular setting have highlighted BET action as a means of controlling gene expression in differentiation, cell identity, and cell state transitions, whether physiological or pathological, adaptive, or maladaptive. While distinct BET inhibitors are being pursued as therapies in oncology, a large prospective clinical cardiovascular outcome study investigating the BET inhibitor RVX-208 (now called apabetalone) has already been completed. Independent of this specific agent and this one trial or the numerous unanswered questions that remain, BETs have emerged as novel epigenetic players involved in the execution of coordinated transcriptional programs in cardiovascular health and disease.
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Affiliation(s)
- Patricia Cristine Borck
- From the Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (P.C.B., J.P.)
| | - Lian-Wang Guo
- Davis Heart and Lung Institute, Wexner Medical Center, Ohio State University, Columbus (L.-W.G.)
| | - Jorge Plutzky
- From the Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA (P.C.B., J.P.)
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16
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Fehling SC, Miller AL, Garcia PL, Vance RB, Yoon KJ. The combination of BET and PARP inhibitors is synergistic in models of cholangiocarcinoma. Cancer Lett 2019; 468:48-58. [PMID: 31605774 DOI: 10.1016/j.canlet.2019.10.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Revised: 10/02/2019] [Accepted: 10/04/2019] [Indexed: 12/12/2022]
Abstract
Our previous finding that the BET inhibitor (BETi) JQ1 increases levels of the DNA damage marker γH2AX suggested that JQ1 might enhance the sensitivity of tumor cells to PARP inhibitors (PARPi), which are selectively toxic to cells that harbor relatively high levels of DNA damage. To address this hypothesis, we evaluated the effect of a BETi (JQ1 or I-BET762) combined with a PARPi (olaparib or veliparib) in KKU-055 and KKU-100 cholangiocarcinoma (CCA) cell lines and of JQ1 with olaparib in a xenograft model of CCA. Each combination was more effective than any of the four drugs as single agents. Combination indices ranged from 0.1 to 0.8 at the ED50 for all combinations, indicating synergy and demonstrating that synergy was not limited to a specific combination. Mechanistically, downregulation of BETi molecular targets BRD2 or BRD4 by shRNA sensitized CCA cells to BETi as single agents as well as to the combination of a BETi + a PARPi. Our data indicate that combinations of a BETi with a PARPi merit further evaluation as a promising strategy for CCA.
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Affiliation(s)
- Samuel C Fehling
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Aubrey L Miller
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Patrick L Garcia
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Rebecca B Vance
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Karina J Yoon
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham, Birmingham, AL, USA.
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17
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Spiniello M, Steinbrink MI, Cesnik AJ, Miller RM, Scalf M, Shortreed MR, Smith LM. Comprehensive in vivo identification of the c-Myc mRNA protein interactome using HyPR-MS. RNA (NEW YORK, N.Y.) 2019; 25:1337-1352. [PMID: 31296583 PMCID: PMC6800478 DOI: 10.1261/rna.072157.119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 06/27/2019] [Indexed: 05/10/2023]
Abstract
Proteins bind mRNA through their entire life cycle from transcription to degradation. We analyzed c-Myc mRNA protein interactors in vivo using the HyPR-MS method to capture the crosslinked mRNA by hybridization and then analyzed the bound proteins using mass spectrometry proteomics. Using HyPR-MS, 229 c-Myc mRNA-binding proteins were identified, confirming previously proposed interactors, suggesting new interactors, and providing information related to the roles and pathways known to involve c-Myc. We performed structural and functional analysis of these proteins and validated our findings with a combination of RIP-qPCR experiments, in vitro results released in past studies, publicly available RIP- and eCLIP-seq data, and results from software tools for predicting RNA-protein interactions.
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Affiliation(s)
- Michele Spiniello
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
- Department of Medicine of Precision, University of Studi della Campania Luigi Vanvitelli, Naples 80138, Italy
- Division of Immuno-Hematology and Transfusion Medicine, Cardarelli Hospital, Naples 80131, Italy
| | - Maisie I Steinbrink
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Anthony J Cesnik
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Rachel M Miller
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Mark Scalf
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Michael R Shortreed
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - Lloyd M Smith
- Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
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18
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The FLT3-ITD mutation and the expression of its downstream signaling intermediates STAT5 and Pim-1 are positively correlated with CXCR4 expression in patients with acute myeloid leukemia. Sci Rep 2019; 9:12209. [PMID: 31434952 PMCID: PMC6704161 DOI: 10.1038/s41598-019-48687-z] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Accepted: 08/08/2019] [Indexed: 02/05/2023] Open
Abstract
Chemokine ligand 12(CXCL12) mediates signaling through chemokine receptor 4(CXCR4), which is essential for the homing and maintenance of Hematopoietic stem cells (HSCs) in the bone marrow. FLT3-ITD mutations enhance cell migration toward CXCL12, providing a drug resistance mechanism underlying the poor effects of FLT3-ITD antagonists. However, the mechanism by which FLT3-ITD mutations regulate the CXCL12/CXCR4 axis remains unclear. We analyzed the relationship between CXCR4 expression and the FLT3-ITD mutation in 466 patients with de novo AML to clarify the effect of FLT3-ITD mutations on CXCR4 expression in patients with AML. Our results indicated a positive correlation between the FLT3-ITD mutant-type allelic ratio (FLT3-ITD MR) and the relative fluorescence intensity (RFI) of CXCR4 expression in patients with AML (r = 0.588, P ≤ 0.0001). Moreover, the levels of phospho(p)-STAT5, Pim-1 and CXCR4 proteins were positively correlated with the FLT3-ITD MR, and the mRNA levels of CXCR4 and Pim-1 which has been revealed as one of the first known target genes of STAT5, were upregulated with an increasing FLT3-ITD MR(P < 0.05). Therefore, FLT3-ITD mutations upregulate the expression of CXCR4 in patients with AML, and the downstream signaling intermediates STAT5 and Pim-1 are also involved in this phenomenon and subsequently contribute to chemotherapy resistance and disease relapse in patients with AML. However, the mechanism must be confirmed in further experiments. The combination of CXCR4 antagonists and FLT3 inhibitors may improve the sensitivity of AML cells to chemotherapy and overcome drug resistance.
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19
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Resveratrol inhibits STAT5 activation through the induction of SHP-1 and SHP-2 tyrosine phosphatases in chronic myelogenous leukemia cells. Anticancer Drugs 2019; 29:646-651. [PMID: 29878900 DOI: 10.1097/cad.0000000000000635] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
STAT5 is an important transcription factor that is constitutively activated in various types of malignancies, including chronic myelogenous leukemia (CML). Whether the antitumor effects of resveratrol (RES) are linked to its capability to inhibit STAT5 activation in CML cells was investigated. We found that RES inhibited STAT5 activation in K562 and KU812 cell lines; RES also reduced the STAT5 concentration in the nucleus of K562 and KU812 cells. Protein tyrosine phosphatase (PTP) inhibitor, sodium pervanadate, reversed the RES-induced downregulation of STAT5, suggesting the involvement of a PTP. Indeed, we observed that RES decreased the expression of tyrosine phosphatase SHP-1 and SHP-2; moreover, the deletion of SHP-1 and SHP-2 genes by siRNA abolished the ability of RES to inhibit STAT5 activation, which suggested the critical role of both SHP-1 and SHP-2 in its possible mechanism of action. RES downregulated the expression of STAT5-regulated gene products such as Bcl-xL, Bcl-2, Cyclin D1, and Mcl-1, and increased the expression of Bax. This correlated with the suppression of proliferation and induction of apoptosis. Overall, our results suggest that RES is a blocker of STAT5 activation and thus may be potentially useful for the treatment of CML.
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20
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Jia Y, Chng WJ, Zhou J. Super-enhancers: critical roles and therapeutic targets in hematologic malignancies. J Hematol Oncol 2019; 12:77. [PMID: 31311566 PMCID: PMC6636097 DOI: 10.1186/s13045-019-0757-y] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022] Open
Abstract
Super-enhancers (SEs) in a broad range of human cell types are large clusters of enhancers with aberrant high levels of transcription factor binding, which are central to drive expression of genes in controlling cell identity and stimulating oncogenic transcription. Cancer cells acquire super-enhancers at oncogene and cancerous phenotype relies on these abnormal transcription propelled by SEs. Furthermore, specific inhibitors targeting SEs assembly and activation have offered potential targets for treating various tumors including hematological malignancies. Here, we first review the identification, functional significance of SEs. Next, we summarize recent findings of SEs and SE-driven gene regulation in normal hematopoiesis and hematologic malignancies. The importance and various modes of SE-mediated MYC oncogene amplification are illustrated. Finally, we highlight the progress of SEs as selective therapeutic targets in basic research and clinical trials. Some open questions regarding functional significance and future directions of targeting SEs in the clinic will be discussed too.
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Affiliation(s)
- Yunlu Jia
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, 117599, Republic of Singapore.,Department of Surgical Oncology, Sir Run Run Shaw Hospital, Zhejiang University, Hangzhou, 310016, Zhejiang, China
| | - Wee-Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, 117599, Republic of Singapore.,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Republic of Singapore.,Department of Hematology-Oncology, National University Cancer Institute of Singapore (NCIS), The National University Health System (NUHS), 1E, Kent Ridge Road, Singapore, 119228, Republic of Singapore
| | - Jianbiao Zhou
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, 117599, Republic of Singapore. .,Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Republic of Singapore.
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21
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Jones N, Vincent EE, Cronin JG, Panetti S, Chambers M, Holm SR, Owens SE, Francis NJ, Finlay DK, Thornton CA. Akt and STAT5 mediate naïve human CD4+ T-cell early metabolic response to TCR stimulation. Nat Commun 2019; 10:2042. [PMID: 31053703 PMCID: PMC6499791 DOI: 10.1038/s41467-019-10023-4] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Accepted: 03/19/2019] [Indexed: 12/29/2022] Open
Abstract
Metabolic pathways that regulate T-cell function show promise as therapeutic targets in diverse diseases. Here, we show that at rest cultured human effector memory and central memory CD4+ T-cells have elevated levels of glycolysis and oxidative phosphorylation (OXPHOS), in comparison to naïve T-cells. Despite having low resting metabolic rates, naive T-cells respond to TCR stimulation with robust and rapid increases in glycolysis and OXPHOS. This early metabolic switch requires Akt activity to support increased rates of glycolysis and STAT5 activity for amino acid biosynthesis and TCA cycle anaplerosis. Importantly, both STAT5 inhibition and disruption of TCA cycle anaplerosis are associated with reduced IL-2 production, demonstrating the functional importance of this early metabolic program. Our results define STAT5 as a key node in modulating the early metabolic program following activation in naive CD4+ T-cells and in turn provide greater understanding of how cellular metabolism shapes T-cell responses.
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Affiliation(s)
- Nicholas Jones
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Emma E Vincent
- MRC Integrative Epidemiology Unit, University of Bristol, Oakfield House, Bristol, BS8 2BN, UK
- Cellular and Molecular Medicine, University of Bristol, Biomedical Sciences Building, Bristol, BS8 1TD, UK
| | - James G Cronin
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Silvia Panetti
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Megan Chambers
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Sean R Holm
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Sian E Owens
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - Nigel J Francis
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - David K Finlay
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearce Street, Dublin, Ireland
- School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, 152-160 Pearce Street, Dublin, Ireland
| | - Catherine A Thornton
- Institute of Life Science, Swansea University Medical School, Swansea, SA2 8PP, UK.
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22
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Del Gaudio N, Di Costanzo A, Liu NQ, Conte L, Migliaccio A, Vermeulen M, Martens JHA, Stunnenberg HG, Nebbioso A, Altucci L. BRD9 binds cell type-specific chromatin regions regulating leukemic cell survival via STAT5 inhibition. Cell Death Dis 2019; 10:338. [PMID: 31000698 PMCID: PMC6472371 DOI: 10.1038/s41419-019-1570-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 03/21/2019] [Accepted: 04/04/2019] [Indexed: 02/07/2023]
Abstract
Leukemia is characterized by genetic and epigenetic mutations resulting in selection of cancer cells, which are unable to differentiate. Although genetic alterations are difficult to target, the epigenome is intrinsically dynamic and readily offers new therapeutic strategies. Thus, identifying cancer-specific context-dependent targets and unraveling their biological function may open up new therapeutic perspectives. Here we identify bromodomain-containing protein 9 (BRD9) as a critical target required in acute myeloid leukemia (AML). We show that BRD9 is overexpressed in AML cells including ex vivo primary blasts compared with CD34+ cells. By targeting BRD9 expression in AML, we observed an alteration in proliferation and survival, ultimately resulting in the induction of apoptosis. Intriguingly, genome-wide profiling revealed that BRD9 binds enhancer regions in a cell type-specific manner, regulating cell type-related processes. We unveil a novel BRD9-sustained STAT5 pathway activation via regulation of SOCS3 expression levels. Our findings identify a previously undescribed BRD9-STAT5 axis as critical for leukemia maintenance, suggesting BRD9 as a potential therapeutic target.
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Affiliation(s)
- Nunzio Del Gaudio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy.
| | - Antonella Di Costanzo
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy
| | - Ning Qing Liu
- Division Gene Regulation, Netherlands Cancer Institute, Plesmanlaan 121, 1066 CX, Amsterdam, The Netherlands
| | - Lidio Conte
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy
| | - Antimo Migliaccio
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy
| | - Michiel Vermeulen
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, 6525 GA, Nijmegen, The Netherlands
| | - Joost H A Martens
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy.,Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, 6525 GA, Nijmegen, The Netherlands
| | - Hendrik G Stunnenberg
- Department of Molecular Biology, Faculty of Science, Radboud Institute for Molecular Life Sciences, Oncode Institute, Radboud University, 6525 GA, Nijmegen, The Netherlands
| | - Angela Nebbioso
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy
| | - Lucia Altucci
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Vico L. De Crecchio 7, 80138, Napoli, Italy.
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23
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The Adaptive Complexity of Cancer. BIOMED RESEARCH INTERNATIONAL 2019; 2018:5837235. [PMID: 30627563 PMCID: PMC6304530 DOI: 10.1155/2018/5837235] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2018] [Accepted: 11/15/2018] [Indexed: 12/13/2022]
Abstract
Cancer treatment options are expanding to the benefit of significant segments of patients. However, their therapeutic power is not equally realized for all cancer patients due to drug toxicity and disease resistance. Overcoming these therapeutic challenges would require a better understanding of the adaptive survival mechanisms of cancer. In this respect, an integrated view of the disease as a complex adaptive system is proposed as a framework to explain the dynamic coupling between the various drivers underlying tumor growth and cancer resistance to therapy. In light of this system view of cancer, the immune system is in principal the most appropriate and naturally available therapeutic instrument that can thwart the adaptive survival mechanisms of cancer. In this respect, new cancer therapies should aim at restoring immunosurveillance by priming the induction of an effective immune response through a judicious targeting of immunosuppression, inflammation, and the tumor nutritional lifeline extended by the tumor microenvironment.
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24
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Vanden Bempt M, Demeyer S, Broux M, De Bie J, Bornschein S, Mentens N, Vandepoel R, Geerdens E, Radaelli E, Bornhauser BC, Kulozik AE, Meijerink JP, Bourquin JP, de Bock CE, Cools J. Cooperative Enhancer Activation by TLX1 and STAT5 Drives Development of NUP214-ABL1/TLX1-Positive T Cell Acute Lymphoblastic Leukemia. Cancer Cell 2018; 34:271-285.e7. [PMID: 30107177 PMCID: PMC6097876 DOI: 10.1016/j.ccell.2018.07.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 05/04/2018] [Accepted: 07/18/2018] [Indexed: 01/01/2023]
Abstract
The NUP214-ABL1 fusion is a constitutively activated tyrosine kinase that is significantly associated with overexpression of the TLX1 and TLX3 transcription factors in T cell acute lymphoblastic leukemia (T-ALL). Here we show that NUP214-ABL1 cooperates with TLX1 in driving T-ALL development using a transgenic mouse model and human T-ALL cells. Using integrated ChIP-sequencing, ATAC-sequencing, and RNA-sequencing data, we demonstrate that TLX1 and STAT5, the downstream effector of NUP214-ABL1, co-bind poised enhancer regions, and cooperatively activate the expression of key proto-oncogenes such as MYC and BCL2. Inhibition of STAT5, downregulation of TLX1 or MYC, or interference with enhancer function through BET-inhibitor treatment leads to reduction of target gene expression and induction of leukemia cell death.
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Affiliation(s)
- Marlies Vanden Bempt
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Sofie Demeyer
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Michaël Broux
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Jolien De Bie
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Simon Bornschein
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Nicole Mentens
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Roel Vandepoel
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Ellen Geerdens
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium
| | - Enrico Radaelli
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - Beat C Bornhauser
- Department of Oncology and Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Andreas E Kulozik
- Department of Pediatric Hematology and Oncology, Heidelberg University Children's Hospital, Heidelberg, Germany; Hopp Children's Cancer Center at the NCT Heidelberg, Heidelberg, Germany
| | - Jules P Meijerink
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Jean-Pierre Bourquin
- Department of Oncology and Children's Research Center, University Children's Hospital Zurich, Zurich, Switzerland
| | - Charles E de Bock
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium.
| | - Jan Cools
- KU Leuven Center for Human Genetics, KU Leuven, Leuven, Belgium; VIB Center for Cancer Biology, VIB, Leuven, Belgium.
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25
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Taxodione induces apoptosis in BCR-ABL-positive cells through ROS generation. Biochem Pharmacol 2018; 154:357-372. [DOI: 10.1016/j.bcp.2018.05.018] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/30/2018] [Indexed: 01/05/2023]
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26
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Cryptotanshinone suppresses key onco-proliferative and drug-resistant pathways of chronic myeloid leukemia by targeting STAT5 and STAT3 phosphorylation. SCIENCE CHINA-LIFE SCIENCES 2018; 61:999-1009. [DOI: 10.1007/s11427-018-9324-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 05/31/2018] [Indexed: 12/12/2022]
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27
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Hu T, Wu Q, Chong Y, Qin H, Poole CJ, van Riggelen J, Ren M, Cowell JK. FGFR1 fusion kinase regulation of MYC expression drives development of stem cell leukemia/lymphoma syndrome. Leukemia 2018; 32:2363-2373. [PMID: 29720732 PMCID: PMC6168426 DOI: 10.1038/s41375-018-0124-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 03/07/2018] [Accepted: 03/13/2018] [Indexed: 12/12/2022]
Abstract
Oncogenic transformation of hematopoietic stem cells by chimeric fusion kinases causing constitutive activation of FGFR1 leads to a stem cell leukemia/lymphoma (SCLL) syndrome, accompanied by widespread dysregulation of gene activity. We now show that FGFR1 activation is associated with upregulation of MYC and pharmacological suppression of FGFR1 activation leads to downregulation of MYC and suppression of MYC target genes. Luciferase reporter assays demonstrate that FGFR1 can directly regulate MYC expression and this effect is enhanced in the presence of chimeric FGFR1 kinases. In SCLL cells, a truncated form of FGFR1 is generated by granzyme B cleavage of the chimeric kinases, producing a nucleus-restricted derivative that can bind MYC regulatory regions. Mutation of the granzyme B cleavage site prevents relocation to the nucleus but does not suppress MYC activation, suggesting additional mechanisms of MYC activation in the presence of cytoplasm-restricted chimeric kinases. We show that one of these mechanisms involves activating cytoplasmic STAT5, which upregulates MYC independent of the truncated FGFR1 kinase. Targeting MYC function using shRNA knockdown and 10054-F8 in SCLL cells leads to inhibition of cell proliferation and synergizes with the BGJ398 FGFR1 inhibitor, suggesting a combination therapy that could be used in the treatment of SCLL.
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Affiliation(s)
- Tianxiang Hu
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Qing Wu
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Yating Chong
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Haiyan Qin
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA
| | - Candace J Poole
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, GA, USA
| | - Jan van Riggelen
- Department of Biochemistry and Molecular Biology, Augusta University, Augusta, GA, USA
| | - Mingqiang Ren
- Consortium for Health and Military Performance (CHAMP), Department of Military and Emergency Medicine, Uniformed Services University of the Health Sciences, 4301 Jones Bridge Road, Bethesda, MD, 20814, USA.
| | - John K Cowell
- Georgia Cancer Center, Augusta University, Augusta, GA, 30912, USA.
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28
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Roubert A, Gregory K, Li Y, Pfalzer AC, Li J, Schneider SS, Wood RJ, Liu Z. The influence of tumor necrosis factor-α on the tumorigenic Wnt-signaling pathway in human mammary tissue from obese women. Oncotarget 2018; 8:36127-36136. [PMID: 28402277 PMCID: PMC5482643 DOI: 10.18632/oncotarget.16632] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 03/10/2017] [Indexed: 12/13/2022] Open
Abstract
Epidemiological studies have convincingly suggested that obesity is an important risk factor for postmenopausal breast cancer, but the mechanisms responsible for this relationship are still not fully understood. We hypothesize that obesity creates a low-grade inflammatory microenvironment, which stimulates Wnt-signaling and thereby promotes the development of breast cancer. To test this hypothesis, we evaluated the correlations between expression of multiple inflammatory cytokines and Wnt pathway downstream genes in mammary tissues from women (age ≥ 50) undergoing reduction mammoplasty. Moreover, we specifically examined the role of tumor necrosis factor-α (TNF-α), an important proinflammatory cytokine associated with obesity and a possible modulator of the Wnt pathway. The regulatory effects of TNF-α on Wnt pathway targets were measured in an ex vivo culture of breast tissue treated with anti-TNF-α antibody or TNF-α recombinant protein. We found that BMI was positively associated with the secretion of inflammatory cytokines IL-1β, IL-6 and TNF-α, all of which were negatively correlated with the expression of SFRP1. The transcriptional expression of Wnt-signaling targets, AXIN2 and CYCLIN D1, were higher in mammary tissue from women with BMI ≥ 30 compared to those with BMI < 30. Our ex vivo work confirmed that TNF-α is causally linked to the up-regulation of active β-CATENIN, a key component in the Wnt pathway, and several Wnt-signaling target genes (i.e. CYCLIN D1, AXIN2, P53 and COX-2). Collectively, these findings indicate that obesity-driven inflammation elevates Wnt-signaling in mammary tissue and thereby creates a microenvironment conducive to the development of breast cancer.
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Affiliation(s)
- Agathe Roubert
- Nutrition and Cancer Prevention Laboratory, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Kelly Gregory
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA, USA
| | - Yuyang Li
- Department of Surgery, Shandong Provincial Hospital, Shandong University, Jinan, Shandong, China
| | - Anna C Pfalzer
- Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
| | - Jinchao Li
- Nutrition and Cancer Prevention Laboratory, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Sallie S Schneider
- Pioneer Valley Life Sciences Institute, Baystate Medical Center, Springfield, MA, USA
| | - Richard J Wood
- Nutrition and Cancer Prevention Laboratory, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA
| | - Zhenhua Liu
- Nutrition and Cancer Prevention Laboratory, School of Public Health and Health Sciences, University of Massachusetts, Amherst, MA, USA.,Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA, USA
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29
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Zeng H, Yu M, Tan H, Li Y, Su W, Shi H, Dhungana Y, Guy C, Neale G, Cloer C, Peng J, Wang D, Chi H. Discrete roles and bifurcation of PTEN signaling and mTORC1-mediated anabolic metabolism underlie IL-7-driven B lymphopoiesis. SCIENCE ADVANCES 2018; 4:eaar5701. [PMID: 29399633 PMCID: PMC5792226 DOI: 10.1126/sciadv.aar5701] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 01/04/2018] [Indexed: 05/21/2023]
Abstract
Interleukin-7 (IL-7) drives early B lymphopoiesis, but the underlying molecular circuits remain poorly understood, especially how Stat5 (signal transducer and activator of transcription 5)-dependent and Stat5-independent pathways contribute to this process. Combining transcriptome and proteome analyses and mouse genetic models, we show that IL-7 promotes anabolic metabolism and biosynthetic programs in pro-B cells. IL-7-mediated activation of mTORC1 (mechanistic target of rapamycin complex 1) supported cell proliferation and metabolism in a Stat5-independent, Myc-dependent manner but was largely dispensable for cell survival or Rag1 and Rag2 gene expression. mTORC1 was also required for Myc-driven lymphomagenesis. PI3K (phosphatidylinositol 3-kinase) and mTORC1 had discrete effects on Stat5 signaling and independently controlled B cell development. PI3K was actively suppressed by PTEN (phosphatase and tensin homolog) in pro-B cells to ensure proper IL-7R expression, Stat5 activation, heavy chain rearrangement, and cell survival, suggesting the unexpected bifurcation of the classical PI3K-mTOR signaling. Together, our integrative analyses establish IL-7R-mTORC1-Myc and PTEN-mediated PI3K suppression as discrete signaling axes driving B cell development, with differential effects on IL-7R-Stat5 signaling.
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Affiliation(s)
- Hu Zeng
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Mei Yu
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI 53226, USA
| | - Haiyan Tan
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Yuxin Li
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Wei Su
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Integrated Biomedical Sciences Program, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Hao Shi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Yogesh Dhungana
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Cliff Guy
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics and Biotechnology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Caryn Cloer
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Junmin Peng
- Departments of Structural Biology and Developmental Neurobiology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- St. Jude Proteomics Facility, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
| | - Demin Wang
- Blood Research Institute, Blood Center of Wisconsin, Milwaukee, WI 53226, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
| | - Hongbo Chi
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
- Corresponding author. (H.C.); (D.W.); (J.P.)
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Villarino AV, Sciumè G, Davis FP, Iwata S, Zitti B, Robinson GW, Hennighausen L, Kanno Y, O'Shea JJ. Subset- and tissue-defined STAT5 thresholds control homeostasis and function of innate lymphoid cells. J Exp Med 2017; 214:2999-3014. [PMID: 28916644 PMCID: PMC5626390 DOI: 10.1084/jem.20150907] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 05/18/2017] [Accepted: 07/26/2017] [Indexed: 01/06/2023] Open
Abstract
Innate lymphoid cells (ILCs) patrol environmental interfaces to defend against infection and protect barrier integrity. Using a genetic tuning model, we demonstrate that the signal-dependent transcription factor (TF) STAT5 is critical for accumulation of all known ILC subsets in mice and reveal a hierarchy of STAT5 dependency for populating lymphoid and nonlymphoid tissues. We apply transcriptome and genomic distribution analyses to define a STAT5 gene signature in natural killer (NK) cells, the prototypical ILC subset, and provide a systems-based molecular rationale for its key functions downstream of IL-15. We also uncover surprising features of STAT5 behavior, most notably the wholesale redistribution that occurs when NK cells shift from tonic signaling to acute cytokine-driven signaling, and genome-wide coordination with T-bet, another key TF in ILC biology. Collectively, our data position STAT5 as a central node in the TF network that instructs ILC development, homeostasis, and function and provide mechanistic insights on how it works at cellular and molecular levels.
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Affiliation(s)
- Alejandro V Villarino
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Giuseppe Sciumè
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Fred P Davis
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Shigeru Iwata
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Beatrice Zitti
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - Gertraud W Robinson
- Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
| | - Lothar Hennighausen
- Laboratory of Genetics and Physiology, National Institute of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD
| | - Yuka Kanno
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
| | - John J O'Shea
- Molecular Immunology and Inflammation Branch, National Institute of Arthritis, Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
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31
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Kalkat M, De Melo J, Hickman KA, Lourenco C, Redel C, Resetca D, Tamachi A, Tu WB, Penn LZ. MYC Deregulation in Primary Human Cancers. Genes (Basel) 2017; 8:genes8060151. [PMID: 28587062 PMCID: PMC5485515 DOI: 10.3390/genes8060151] [Citation(s) in RCA: 245] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 05/19/2017] [Accepted: 05/19/2017] [Indexed: 12/12/2022] Open
Abstract
MYC regulates a complex biological program by transcriptionally activating and repressing its numerous target genes. As such, MYC is a master regulator of many processes, including cell cycle entry, ribosome biogenesis, and metabolism. In cancer, the activity of the MYC transcriptional network is frequently deregulated, contributing to the initiation and maintenance of disease. Deregulation often leads to constitutive overexpression of MYC, which can be achieved through gross genetic abnormalities, including copy number alterations, chromosomal translocations, increased enhancer activity, or through aberrant signal transduction leading to increased MYC transcription or increased MYC mRNA and protein stability. Herein, we summarize the frequency and modes of MYC deregulation and describe both well-established and more recent findings in a variety of cancer types. Notably, these studies have highlighted that with an increased appreciation for the basic mechanisms deregulating MYC in cancer, new therapeutic vulnerabilities can be discovered and potentially exploited for the inhibition of this potent oncogene in cancer.
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Affiliation(s)
- Manpreet Kalkat
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Jason De Melo
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Katherine Ashley Hickman
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Sunnybrook Research Institute, Toronto, ON M4N 3M5, Canada.
| | - Corey Lourenco
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Cornelia Redel
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Diana Resetca
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Aaliya Tamachi
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - William B Tu
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
| | - Linda Z Penn
- Department of Medical Biophysics, University of Toronto, Toronto, ON M5G 1L7, Canada.
- Princess Margaret Cancer Centre, University Health Network, Toronto, ON M5G 2M9, Canada.
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32
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Katerndahl CDS, Heltemes-Harris LM, Willette MJL, Henzler CM, Frietze S, Yang R, Schjerven H, Silverstein KAT, Ramsey LB, Hubbard G, Wells AD, Kuiper RP, Scheijen B, van Leeuwen FN, Müschen M, Kornblau SM, Farrar MA. Antagonism of B cell enhancer networks by STAT5 drives leukemia and poor patient survival. Nat Immunol 2017; 18:694-704. [PMID: 28369050 PMCID: PMC5540372 DOI: 10.1038/ni.3716] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Accepted: 02/28/2017] [Indexed: 12/14/2022]
Abstract
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.
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Affiliation(s)
- Casey D S Katerndahl
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Lynn M Heltemes-Harris
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Mark J L Willette
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Christine M Henzler
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Seth Frietze
- MLRS Department, University of Vermont, Burlington, Vermont, USA
| | - Rendong Yang
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Hilde Schjerven
- Department of Laboratory Medicine, University of California San Francisco, San Francisco, California, USA
| | - Kevin A T Silverstein
- Supercomputing Institute for Advanced Computational Research, University of Minnesota, Minneapolis, Minnesota, USA
| | - Laura B Ramsey
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, USA
| | - Gregory Hubbard
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
| | - Andrew D Wells
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania and The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Roland P Kuiper
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Blanca Scheijen
- Laboratory of Pediatric Oncology Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands.,Department of Pathology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Frank N van Leeuwen
- Laboratory of Pediatric Oncology Radboud University Medical Center, Radboud Institute for Molecular Life Sciences, Nijmegen, the Netherlands
| | - Markus Müschen
- Department of Systems Biology, Beckman Research Institute and City of Hope Comprehensive Cancer Center, Pasadena, California, USA
| | - Steven M Kornblau
- Department of Leukemia, The University of Texas Maryland Anderson Cancer Center, Houston, Texas, USA
| | - Michael A Farrar
- Department of Laboratory Medicine and Pathology, Center for Immunology, Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota, USA
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33
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Stanley RF, Piszczatowski RT, Bartholdy B, Mitchell K, McKimpson WM, Narayanagari S, Walter D, Todorova TI, Hirsch C, Makishima H, Will B, McMahon C, Gritsman K, Maciejewski JP, Kitsis RN, Steidl U. A myeloid tumor suppressor role for NOL3. J Exp Med 2017; 214:753-771. [PMID: 28232469 PMCID: PMC5339683 DOI: 10.1084/jem.20162089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2016] [Revised: 01/04/2017] [Accepted: 01/05/2017] [Indexed: 01/31/2023] Open
Abstract
Despite the identification of several oncogenic driver mutations leading to constitutive JAK-STAT activation, the cellular and molecular biology of myeloproliferative neoplasms (MPN) remains incompletely understood. Recent discoveries have identified underlying disease-modifying molecular aberrations contributing to disease initiation and progression. Here, we report that deletion of Nol3 (Nucleolar protein 3) in mice leads to an MPN resembling primary myelofibrosis (PMF). Nol3-/- MPN mice harbor an expanded Thy1+LSK stem cell population exhibiting increased cell cycling and a myelomonocytic differentiation bias. Molecularly, this phenotype is mediated by Nol3-/--induced JAK-STAT activation and downstream activation of cyclin-dependent kinase 6 (Cdk6) and MycNol3-/- MPN Thy1+LSK cells share significant molecular similarities with primary CD34+ cells from PMF patients. NOL3 levels are decreased in CD34+ cells from PMF patients, and the NOL3 locus is deleted in a subset of patients with myeloid malignancies. Our results reveal a novel genetic PMF-like mouse model and identify a tumor suppressor role for NOL3 in the pathogenesis of myeloid malignancies.
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Affiliation(s)
- Robert F Stanley
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | | | - Boris Bartholdy
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Kelly Mitchell
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Wendy M McKimpson
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Swathi Narayanagari
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Dagmar Walter
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Tihomira I Todorova
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Cassandra Hirsch
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195.,Leukemia Program, Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH 44195
| | - Hideki Makishima
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195.,Leukemia Program, Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH 44195
| | - Britta Will
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461.,Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY 10461.,Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461.,Department of Medicine, Albert Einstein College of Medicine-Montefiore Medical Center, Bronx, NY 10461
| | - Christine McMahon
- Department of Pathology, Albert Einstein College of Medicine, Bronx, NY 10461
| | - Kira Gritsman
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461.,Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY 10461.,Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461.,Department of Medicine, Albert Einstein College of Medicine-Montefiore Medical Center, Bronx, NY 10461
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland, OH 44195.,Leukemia Program, Cleveland Clinic, Taussig Cancer Institute, Cleveland, OH 44195
| | - Richard N Kitsis
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461.,Wilf Family Cardiovascular Research Institute, Albert Einstein College of Medicine, Bronx, NY 10461.,Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY 10461.,Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461.,Department of Medicine, Albert Einstein College of Medicine-Montefiore Medical Center, Bronx, NY 10461
| | - Ulrich Steidl
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461 .,Albert Einstein Cancer Center, Albert Einstein College of Medicine, Bronx, NY 10461.,Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, NY 10461.,Department of Medicine, Albert Einstein College of Medicine-Montefiore Medical Center, Bronx, NY 10461
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34
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Shin DG, Bayarsaihan D. A Novel Epi-drug Therapy Based on the Suppression of BET Family Epigenetic Readers. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2017; 90:63-71. [PMID: 28356894 PMCID: PMC5369046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Recent progress in epigenetic research has made a profound influence on pharmacoepigenomics, one of the fastest growing disciplines promising to provide new epi-drugs for the treatment of a broad range of diseases. Histone acetylation is among the most essential chromatin modifications underlying the dynamics of transcriptional activation. The acetylated genomic regions recruit the BET (bromodomain and extra-terminal) family of bromodomains (BRDs), thereby serving as a molecular scaffold in establishing RNA polymerase II specificity. Over the past several years, the BET epigenetic readers have become the main targets for drug therapy. The discovery of selective small-molecule compounds with capacity to inhibit BET proteins has paved a path for developing novel strategies against cancer, cardiovascular, skeletal, and inflammatory diseases. Therefore, further research into small chemicals impeding the regulatory activity of BRDs could offer therapeutic benefits for many health problems including tumor growth, heart disease, oral, and bone disorders.
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Affiliation(s)
- Dong-Guk Shin
- The Computer Science and Engineering Department University of Connecticut, Storrs, CT
| | - Dashzeveg Bayarsaihan
- Institute for System Genomics and Center for Regenerative Medicine and Skeletal Development, University of Connecticut Health Center, Farmington, CT
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35
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Lin XC, Liu XG, Zhang YM, Li N, Yang ZG, Fu WY, Lan LB, Zhang HT, Dai Y. Integrated analysis of microRNA and transcription factor reveals important regulators and regulatory motifs in adult B-cell acute lymphoblastic leukemia. Int J Oncol 2016; 50:671-683. [PMID: 28101583 DOI: 10.3892/ijo.2016.3832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Accepted: 12/16/2016] [Indexed: 11/06/2022] Open
Abstract
B-cell acute lymphoblastic leukemia (B‑ALL) is an aggressive hematological malignancy and a leading cause of cancer-related mortality in children and young adults. The molecular mechanisms involved in the regulation of its gene expression has yet to be fully elucidated. In the present study, we performed large scale expression profiling of microRNA (miRNA) and transcription factor (TF) by Illumina deep‑sequencing and TF array technology, respectively, and identified 291 differentially expressed miRNAs and 201 differentially expressed TFs in adult B‑ALL samples relative to their controls. After integrating expression profile data with computational prediction of miRNA and TF targets from different databases, we construct a comprehensive miRNA‑TF regulatory network specifically for adult B‑ALL. Network function analysis revealed 25 significantly enriched pathways, four pathways are well‑known to be involved in B‑ALL, such as PI3K‑Akt signaling pathway, Jak‑STAT signaling pathway, Ras signaling pathway and cell cycle pathway. By analyzing the network topology, we identified 28 hub miRNAs and 19 hub TFs in the network, and found nine potential B‑ALL regulators among these hub nodes. We also constructed a Jak‑STAT signaling sub‑network for B‑ALL. Based on the sub‑network analysis and literature survey, we proposed a cellular model to discuss MYC/miR‑15a‑5p/FLT3 feed-forward loop (FFL) with Jak‑STAT signaling pathway in B‑ALL. These findings enhance our understanding of this disease at the molecular level, as well as provide putative therapeutic targets for B-ALL.
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Affiliation(s)
- Xiao-Cong Lin
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Xin-Guang Liu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Yu-Ming Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Ning Li
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Zhi-Gang Yang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Wei-Yu Fu
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Liu-Bo Lan
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Hai-Tao Zhang
- Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, Guangdong Medical University, Dongguan, Guangdong 523808, P.R. China
| | - Yong Dai
- Clinical Medical Research Center, Shenzhen People's Hospital, Shenzhen, Guangdong 518020, P.R. China
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36
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Tough DF, Prinjha RK. Immune disease-associated variants in gene enhancers point to BET epigenetic mechanisms for therapeutic intervention. Epigenomics 2016; 9:573-584. [PMID: 27925476 DOI: 10.2217/epi-2016-0144] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Genome-wide association studies have identified thousands of single nucleotide polymorphisms in the human genome that are statistically associated with particular disease traits. In this Perspective, we review emerging data suggesting that most single nucleotide polymorphisms associated with immune-mediated diseases are found in regulatory regions of the DNA - parts of the genome that control expression of the protein encoding genes - rather than causing mutations in proteins. We discuss how the emerging understanding of particular gene regulatory regions, gene enhancers and the epigenetic mechanisms by which they are regulated is opening up new opportunities for the treatment of immune-mediated diseases, focusing particularly on the BET family of epigenetic reader proteins as potential therapeutic targets.
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Affiliation(s)
- David F Tough
- Epigenetics DPU, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Medicines Research Centre, Stevenage SG1 2NY, UK
| | - Rab K Prinjha
- Epigenetics DPU, Immuno-Inflammation Therapy Area Unit, GlaxoSmithKline, Medicines Research Centre, Stevenage SG1 2NY, UK
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37
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Inhibition of interleukin-3- and interferon- α-induced JAK/STAT signaling by the synthetic α-X-2′,3,4,4′-tetramethoxychalcones α-Br-TMC and α-CF3-TMC. Biol Chem 2016; 397:1187-1204. [DOI: 10.1515/hsz-2016-0148] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 06/21/2016] [Indexed: 12/18/2022]
Abstract
Abstract
The JAK/STAT pathway is an essential mediator of cytokine signaling, often upregulated in human diseases and therefore recognized as a relevant therapeutic target. We previously identified the synthetic chalcone α-bromo-2′,3,4,4′-tetramethoxychalcone (α-Br-TMC) as a novel JAK2/STAT5 inhibitor. We also found that treatment with α-Br-TMC resulted in a downward shift of STAT5 proteins in SDS-PAGE, suggesting a post-translational modification that might affect STAT5 function. In the present study, we show that a single cysteine within STAT5 is responsible for the α-Br-TMC-induced protein shift, and that this modification does not alter STAT5 transcriptional activity. We also compared the inhibitory activity of α-Br-TMC to that of another synthetic chalcone, α-trifluoromethyl-2′,3,4,4′-tetramethoxychalcone (α-CF3-TMC). We found that, like α-Br-TMC, α-CF3-TMC inhibits JAK2 and STAT5 phosphorylation in response to interleukin-3, however without altering STAT5 mobility in SDS-PAGE. Moreover, we demonstrate that both α-Br-TMC and α-CF3-TMC inhibit interferon-α-induced activation of STAT1 and STAT2, by inhibiting their phosphorylation and the expression of downstream interferon-stimulated genes. Together with the previous finding that α-Br-TMC and α-CF3-TMC inhibit the response to inflammation by inducing Nrf2 and blocking NF-κB activities, our data suggest that synthetic chalcones might be useful as anti-inflammatory, anti-cancer and immunomodulatory agents in the treatment of human diseases.
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38
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Hierarchy within the mammary STAT5-driven Wap super-enhancer. Nat Genet 2016; 48:904-911. [PMID: 27376239 PMCID: PMC4963296 DOI: 10.1038/ng.3606] [Citation(s) in RCA: 187] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 06/03/2016] [Indexed: 12/14/2022]
Abstract
Super-enhancers comprise of dense transcription factor platforms highly enriched for active chromatin marks. A paucity of functional data led us to investigate their role in the mammary gland, an organ characterized by exceptional gene regulatory dynamics during pregnancy. ChIP-Seq for the master regulator STAT5, the glucocorticoid receptor, H3K27ac and MED1, identified 440 mammary-specific super-enhancers, half of which were associated with genes activated during pregnancy. We interrogated the Wap super-enhancer, generating mice carrying mutations in STAT5 binding sites within its three constituent enhancers. Individually, only the most distal site displayed significant enhancer activity. However, combinatorial mutations showed that the 1,000-fold gene induction relied on all enhancers. Disabling the binding sites of STAT5, NFIB and ELF5 in the proximal enhancer incapacitated the entire super-enhancer, suggesting an enhancer hierarchy. The identification of mammary-specific super-enhancers and the mechanistic exploration of the Wap locus provide insight into the complexity of cell-specific and hormone-regulated genes.
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