1
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Antony ML, Chang D, Noble-Orcutt KE, Kay A, Jensen JL, Mohei H, Myers CL, Sachs K, Sachs Z. CD69 marks a subpopulation of acute myeloid leukemia with enhanced colony forming capacity and a unique signaling activation state. Leuk Lymphoma 2023; 64:1262-1274. [PMID: 37161853 DOI: 10.1080/10428194.2023.2207698] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 01/10/2023] [Accepted: 04/09/2023] [Indexed: 05/11/2023]
Abstract
In acute myeloid leukemia (AML), leukemia stem cells (LSCs) have self-renewal potential and are responsible for relapse. We previously showed that, in Mll-AF9/NRASG12V murine AML, CD69 expression marks an LSC-enriched subpopulation with enhanced in vivo self-renewal capacity. Here, we used CyTOF to define activated signaling pathways in LSC subpopulations in Mll-AF9/NRASG12V AML. Furthermore, we compared the signaling activation states of CD69High and CD36High subsets of primary human AML. The human CD69High subset expresses low levels of Ki67 and high levels of NFκB and pMAPKAPKII. Additionally, the human CD69High AML subset also has enhanced colony-forming capacity. We applied Bayesian network modeling to compare the global signaling network within the human AML subsets. We find that distinct signaling states, distinguished by NFκB and pMAPKAPKII levels, correlate with divergent functional subsets, defined by CD69 and CD36 expression, in human AML. Targeting NFκB with proteasome inhibition diminished colony formation.
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Affiliation(s)
- Marie Lue Antony
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Daniel Chang
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Klara E Noble-Orcutt
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Anna Kay
- University of Michigan Medical School, Ann Arbor, MI, USA
| | - Jeffrey L Jensen
- Department of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Hesham Mohei
- Department of Pathology and Laboratory Medicine, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
| | - Chad L Myers
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, MN, USA
| | - Karen Sachs
- Next Generation Analytics, Palo Alto, CA, USA
| | - Zohar Sachs
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
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2
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Ke P, Zhu Q, Xu T, Yang X, Wang Y, Qiu H, Wu D, Bao X, Chen S. Identification and validation of a 7-genes prognostic signature for adult acute myeloid leukemia based on aging-related genes. Aging (Albany NY) 2023; 15:5826-5853. [PMID: 37367950 PMCID: PMC10333094 DOI: 10.18632/aging.204843] [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: 03/31/2023] [Accepted: 06/10/2023] [Indexed: 06/28/2023]
Abstract
To explore effects of aging-related genes (ARGs) on the prognosis of Acute Myeloid Leukemia (AML), a seven-ARGs signature was developed and validated in AML patients. The numbers of seven-ARG sequences were selected to construct the survival prognostic signature in TCGA-LAML cohort, and two GEO datasets were used independently to verify the prognostic values of signature. According to seven-ARGs signature, patients were categorized into two subgroups. Patients with high-risk prognostic score were defined as HRPS-group/high-risk group, while others were set as LRPS-group/low-risk group. HRPS-group presented adverse overall survival (OS) than LRPS-group in TCGA-AML cohort (HR=3.39, P<0.001). In validation, the results emphasized a satisfactory discrimination in different time points, and confirmed the poor OS of HRPS-group both in GSE37642 (HR=1.96, P=0.001) and GSE106291 (HR=1.88, P<0.001). Many signal pathways, including immune- and tumor-related processes, especially NF-κB signaling, were highly enriched in HRPS-group. Coupled with high immune-inflamed infiltration, the HRPS-group was highly associated with the driver gene and oncogenic signaling pathway of TP53. Prediction of blockade therapy targeting immune checkpoint indicated varied benefits base on the different ARGs signature score, and the results of predicted drug response suggested that Pevonedistat, an inhibitor of NEDD8-activating enzyme, targeting NF-κB signaling, may have potential therapeutic value for HRPS-group. Compared with clinical factors alone, the signature had an independent value and more predictive power of AML prognosis. The 7-ARGs signature may help to guide clinical-decision making to predict drug response, and survival in AML patients.
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Affiliation(s)
- Peng Ke
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Qian Zhu
- Soochow Hopes Hematonosis Hospital, Suzhou, China
| | - Ting Xu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Xiaofei Yang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Ying Wang
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Huiying Qiu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Depei Wu
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Xiebing Bao
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
| | - Suning Chen
- National Clinical Research Center for Hematologic Diseases, Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
- Institute of Blood and Marrow Transplantation, Collaborative Innovation Center of Hematology, Soochow University, Suzhou, China
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3
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Maetzig T, Lieske A, Dörpmund N, Rothe M, Kleppa MJ, Dziadek V, Hassan JJ, Dahlke J, Borchert D, Schambach A. Real-Time Characterization of Clonal Fate Decisions in Complex Leukemia Samples by Fluorescent Genetic Barcoding. Cells 2022; 11:cells11244045. [PMID: 36552809 PMCID: PMC9776743 DOI: 10.3390/cells11244045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 12/07/2022] [Accepted: 12/11/2022] [Indexed: 12/23/2022] Open
Abstract
Clonal heterogeneity in acute myeloid leukemia (AML) forms the basis for treatment failure and relapse. Attempts to decipher clonal evolution and clonal competition primarily depend on deep sequencing approaches. However, this prevents the experimental confirmation of the identified disease-relevant traits on the same cell material. Here, we describe the development and application of a complex fluorescent genetic barcoding (cFGB) lentiviral vector system for the labeling and subsequent multiplex tracking of up to 48 viable AML clones by flow cytometry. This approach allowed the visualization of longitudinal changes in the in vitro growth behavior of multiplexed color-coded AML clones for up to 137 days. Functional studies of flow cytometry-enriched clones documented their stably inherited increase in competitiveness, despite the absence of growth-promoting mutations in exome sequencing data. Transplantation of aliquots of a color-coded AML cell mix into mice revealed the initial engraftment of similar clones and their subsequent differential distribution in the animals over time. Targeted RNA-sequencing of paired pre-malignant and de novo expanded clones linked gene sets associated with Myc-targets, embryonic stem cells, and RAS signaling to the foundation of clonal expansion. These results demonstrate the potency of cFGB-mediated clonal tracking for the deconvolution of verifiable driver-mechanisms underlying clonal selection in leukemia.
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Affiliation(s)
- Tobias Maetzig
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany
- Correspondence: ; Tel.: +49-511-532-7808
| | - Anna Lieske
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany
| | - Nicole Dörpmund
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany
| | - Michael Rothe
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Marc-Jens Kleppa
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Violetta Dziadek
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Jacob Jalil Hassan
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Julia Dahlke
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
| | - Dorit Borchert
- Department of Pediatric Hematology and Oncology, Hannover Medical School, 30625 Hannover, Germany
| | - Axel Schambach
- Institute of Experimental Hematology, Hannover Medical School, 30625 Hannover, Germany
- Division of Hematology/Oncology, Boston Children’s Hospital, Harvard Medical School, Boston, MA 02115, USA
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4
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Di Francesco B, Verzella D, Capece D, Vecchiotti D, Di Vito Nolfi M, Flati I, Cornice J, Di Padova M, Angelucci A, Alesse E, Zazzeroni F. NF-κB: A Druggable Target in Acute Myeloid Leukemia. Cancers (Basel) 2022; 14:cancers14143557. [PMID: 35884618 PMCID: PMC9319319 DOI: 10.3390/cancers14143557] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 02/01/2023] Open
Abstract
Simple Summary AML is a highly heterogeneous hematological disease and is the second most common form of leukemia. Around 40% of AML patients display elevated nuclear NF-κB activity, providing a compelling rationale for targeting the NF-κB pathway in AML. Here we summarize the main drivers of the NF-κB pathway in AML pathogenesis as well as the conventional and novel therapeutic strategies targeting NF-κB to improve the survival of AML patients. Abstract Acute Myeloid Leukemia (AML) is an aggressive hematological malignancy that relies on highly heterogeneous cytogenetic alterations. Although in the last few years new agents have been developed for AML treatment, the overall survival prospects for AML patients are still gloomy and new therapeutic options are still urgently needed. Constitutive NF-κB activation has been reported in around 40% of AML patients, where it sustains AML cell survival and chemoresistance. Given the central role of NF-κB in AML, targeting the NF-κB pathway represents an attractive strategy to treat AML. This review focuses on current knowledge of NF-κB’s roles in AML pathogenesis and summarizes the main therapeutic approaches used to treat NF-κB-driven AML.
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5
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Bhattacharjee R, Ghosh S, Nath A, Basu A, Biswas O, Patil CR, Kundu CN. Theragnostic strategies harnessing the self-renewal pathways of stem-like cells in the acute myeloid leukemia. Crit Rev Oncol Hematol 2022; 177:103753. [PMID: 35803452 DOI: 10.1016/j.critrevonc.2022.103753] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 06/21/2022] [Accepted: 07/02/2022] [Indexed: 02/07/2023] Open
Abstract
Acute myelogenous leukemia (AML) is a genetically heterogeneous and aggressive cancer of the Hematopoietic Stem/progenitor cells. It is distinguished by the uncontrollable clonal growth of malignant myeloid stem cells in the bone marrow, venous blood, and other body tissues. AML is the most predominant of leukemias occurring in adults (25%) and children (15-20%). The relapse after chemotherapy is a major concern in the treatment of AML. The overall 5-year survival rate in young AML patients is about 40-45% whereas in the elderly patients it is less than 10%. Leukemia stem-like cells (LSCs) having the ability to self-renew indefinitely, repopulate and persist longer in the G0/G1 phase play a crucial role in the AML relapse and refractoriness to chemotherapy. Hence, novel treatment strategies and diagnostic biomarkers targeting LSCs are being increasingly investigated. Through this review, we have explored the signaling modulations in the LSCs as the theragnostic targets. The significance of the self-renewal pathways in overcoming the treatment challenges in AML has been highlighted.
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Affiliation(s)
- Rahul Bhattacharjee
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Sharad Ghosh
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Arijit Nath
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Asmita Basu
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Ojaswi Biswas
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India
| | - Chandragauda R Patil
- Department of Pharmacology, DIPSAR, Delhi Pharmaceutical Sciences and Research University, New Delhi, India
| | - Chanakya Nath Kundu
- KIIT School of Biotechnology, Kalinga Institute of Industrial Technology (KIIT-DU), Bhubaneswar, Odisha, India.
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6
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Ikeda D, Chi S, Uchiyama S, Nakamura H, Guo YM, Yamauchi N, Yuda J, Minami Y. Molecular Classification and Overcoming Therapy Resistance for Acute Myeloid Leukemia with Adverse Genetic Factors. Int J Mol Sci 2022; 23:5950. [PMID: 35682627 PMCID: PMC9180585 DOI: 10.3390/ijms23115950] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/19/2022] [Accepted: 05/24/2022] [Indexed: 12/01/2022] Open
Abstract
The European LeukemiaNet (ELN) criteria define the adverse genetic factors of acute myeloid leukemia (AML). AML with adverse genetic factors uniformly shows resistance to standard chemotherapy and is associated with poor prognosis. Here, we focus on the biological background and real-world etiology of these adverse genetic factors and then describe a strategy to overcome the clinical disadvantages in terms of targeting pivotal molecular mechanisms. Different adverse genetic factors often rely on common pathways. KMT2A rearrangement, DEK-NUP214 fusion, and NPM1 mutation are associated with the upregulation of HOX genes. The dominant tyrosine kinase activity of the mutant FLT3 or BCR-ABL1 fusion proteins is transduced by the AKT-mTOR, MAPK-ERK, and STAT5 pathways. Concurrent mutations of ASXL1 and RUNX1 are associated with activated AKT. Both TP53 mutation and mis-expressed MECOM are related to impaired apoptosis. Clinical data suggest that adverse genetic factors can be found in at least one in eight AML patients and appear to accumulate in relapsed/refractory cases. TP53 mutation is associated with particularly poor prognosis. Molecular-targeted therapies focusing on specific genomic abnormalities, such as FLT3, KMT2A, and TP53, have been developed and have demonstrated promising results.
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Affiliation(s)
- Daisuke Ikeda
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
- Department of Hematology, Kameda Medical Center, Kamogawa 296-8602, Japan
| | - SungGi Chi
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Satoshi Uchiyama
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Hirotaka Nakamura
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Yong-Mei Guo
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Nobuhiko Yamauchi
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Junichiro Yuda
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
| | - Yosuke Minami
- Department of Hematology, National Cancer Center Hospital East, Kashiwa, Chiba 277-8577, Japan; (D.I.); (S.C.); (S.U.); (H.N.); (Y.-M.G.); (N.Y.); (J.Y.)
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7
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Sunthankar KI, Jenkins MT, Cote CH, Patel SB, Welner RS, Ferrell PB. Isocitrate dehydrogenase mutations are associated with altered IL-1β responses in acute myeloid leukemia. Leukemia 2022; 36:923-934. [PMID: 34857894 PMCID: PMC9066619 DOI: 10.1038/s41375-021-01487-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 11/08/2021] [Accepted: 11/22/2021] [Indexed: 12/20/2022]
Abstract
Mutations in isocitrate dehydrogenase 2 (IDH2) have been noted to impact cellular differentiation in addition to DNA and histone methylation. However, little is known about the impact of IDH2 mutations on intracellular signaling. Using an isogenic cell line model, we investigated both differentiation and signaling responses in IDH2 mutant cells and show augmented responses to inflammatory immune ligands. Using phospho-specific flow and mass cytometry, we demonstrate IDH2 mutant cells were significantly more sensitive to IL-1β at multiple downstream readouts. Further, bulk RNA sequencing confirmed increases in cytokine-related signaling pathways and NF-κB target genes. Single-cell RNA sequencing of unstimulated and stimulated cells confirmed altered IL-1β transcriptional responses in the IDH2 mutant cells. Targeted inhibition of the IKK complex reduced IL-1β responses and induced cell death in primary IDH-mutated leukemia samples. Together, these results confirm altered IL-1β signaling in IDH2 mutant cells and identify this pathway as a potential therapeutic target.
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Affiliation(s)
- Kathryn I. Sunthankar
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Matthew T. Jenkins
- Department of Pharmacology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Candace H. Cote
- University of Kansas School of Medicine, Kansas City, Kansas, USA
| | - Sweta B. Patel
- Division of Hematology/Oncology, O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Robert S. Welner
- Division of Hematology/Oncology, O’Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - P. Brent Ferrell
- Division of Hematology/Oncology, Vanderbilt Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA.,Corresponding Author (PBF),
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8
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Man CH, Mercier FE, Liu N, Dong W, Stephanopoulos G, Jiang L, Jung Y, Lin CP, Leung AYH, Scadden DT. Proton export alkalinizes intracellular pH and reprograms carbon metabolism to drive normal and malignant cell growth. Blood 2022; 139:502-522. [PMID: 34610101 PMCID: PMC8796654 DOI: 10.1182/blood.2021011563] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 09/20/2021] [Indexed: 01/29/2023] Open
Abstract
Proton export is often considered a detoxifying process in animal cells, with monocarboxylate symporters coexporting excessive lactate and protons during glycolysis or the Warburg effect. We report a novel mechanism by which lactate/H+ export is sufficient to induce cell growth. Increased intracellular pH selectively activates catalysis by key metabolic gatekeeper enzymes HK1/PKM2/G6PDH, thereby enhancing glycolytic and pentose phosphate pathway carbon flux. The result is increased nucleotide levels, NADPH/NADP+ ratio, and cell proliferation. Simply increasing the lactate/proton symporter monocarboxylate transporter 4 (MCT4) or the sodium-proton antiporter NHE1 was sufficient to increase intracellular pH and give normal hematopoietic cells a significant competitive growth advantage in vivo. This process does not require additional cytokine triggers and is exploited in malignancy, where leukemogenic mutations epigenetically increase MCT4. Inhibiting MCT4 decreased intracellular pH and carbon flux and eliminated acute myeloid leukemia-initiating cells in mice without cytotoxic chemotherapy. Intracellular alkalization is a primitive mechanism by which proton partitioning can directly reprogram carbon metabolism for cell growth.
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Affiliation(s)
- Cheuk Him Man
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
- Ludwig Center, Harvard Medical School, Boston, MA
| | - Francois E Mercier
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
- Ludwig Center, Harvard Medical School, Boston, MA
| | - Nian Liu
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Wentao Dong
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Gregory Stephanopoulos
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA
| | - Li Jiang
- Department of Biomedical Informatics, Harvard Medical School, Boston, MA
| | - Yookyung Jung
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA; and
| | - Charles P Lin
- Center for Systems Biology and Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA; and
| | - Anskar Y H Leung
- Division of Haematology, Department of Medicine, University of Hong Kong, Pok Fu Lam, Hong Kong SAR
| | - David T Scadden
- Department of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA
- Center for Regenerative Medicine and Cancer Center, Massachusetts General Hospital, Boston, MA
- Harvard Stem Cell Institute, Cambridge, MA
- Ludwig Center, Harvard Medical School, Boston, MA
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9
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Lower RNA expression of ALDH1A1 distinguishes the favorable risk group in acute myeloid leukemia. Mol Biol Rep 2022; 49:3321-3331. [PMID: 35028852 DOI: 10.1007/s11033-021-07073-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 12/08/2021] [Indexed: 02/06/2023]
Abstract
The expression and activity of enzymes that belong to the aldehyde dehydrogenases is a characteristic of both normal and malignant stem cells. ALDH1A1 is an enzyme critical in cancer stem cells. In acute myeloid leukemia (AML), ALDH1A1 protects leukemia-initiating cells from a number of antineoplastic agents, which include inhibitors of protein tyrosine kinases. Furthermore, ALDH1A1 proves vital for the establishment of human AML xenografts in mice. We review here important studies characterizing the role of ALDH1A1 in AML and its potential as a therapeutic target. We also analyze datasets from leading studies, and show that decreased ALDH1A1 RNA expression consistently characterizes the AML patient risk group with a favorable prognosis, while there is a consistent association of high ALDH1A1 RNA expression with high risk and poor overall survival. Our review and analysis reinforces the notion to employ both novel as well as existing inhibitors of the ALDH1A1 protein against AML.
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10
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Fisher DAC, Fowles JS, Zhou A, Oh ST. Inflammatory Pathophysiology as a Contributor to Myeloproliferative Neoplasms. Front Immunol 2021; 12:683401. [PMID: 34140953 PMCID: PMC8204249 DOI: 10.3389/fimmu.2021.683401] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Accepted: 05/12/2021] [Indexed: 12/12/2022] Open
Abstract
Myeloid neoplasms, including acute myeloid leukemia (AML), myeloproliferative neoplasms (MPNs), and myelodysplastic syndromes (MDS), feature clonal dominance and remodeling of the bone marrow niche in a manner that promotes malignant over non-malignant hematopoiesis. This take-over of hematopoiesis by the malignant clone is hypothesized to include hyperactivation of inflammatory signaling and overproduction of inflammatory cytokines. In the Ph-negative MPNs, inflammatory cytokines are considered to be responsible for a highly deleterious pathophysiologic process: the phenotypic transformation of polycythemia vera (PV) or essential thrombocythemia (ET) to secondary myelofibrosis (MF), and the equivalent emergence of primary myelofibrosis (PMF). Bone marrow fibrosis itself is thought to be mediated heavily by the cytokine TGF-β, and possibly other cytokines produced as a result of hyperactivated JAK2 kinase in the malignant clone. MF also features extramedullary hematopoiesis and progression to bone marrow failure, both of which may be mediated in part by responses to cytokines. In MF, elevated levels of individual cytokines in plasma are adverse prognostic indicators: elevated IL-8/CXCL8, in particular, predicts risk of transformation of MF to secondary AML (sAML). Tumor necrosis factor (TNF, also known as TNFα), may underlie malignant clonal dominance, based on results from mouse models. Human PV and ET, as well as MF, harbor overproduction of multiple cytokines, above what is observed in normal aging, which can lead to cellular signaling abnormalities separate from those directly mediated by hyperactivated JAK2 or MPL kinases. Evidence that NFκB pathway signaling is frequently hyperactivated in a pan-hematopoietic pattern in MPNs, including in cells outside the malignant clone, emphasizes that MPNs are pan-hematopoietic diseases, which remodel the bone marrow milieu to favor persistence of the malignancy. Clinical evidence that JAK2 inhibition by ruxolitinib in MF neither reliably reduces malignant clonal burden nor eliminates cytokine elevations, suggests targeting cytokine mediated signaling as a therapeutic strategy, which is being pursued in new clinical trials. Greater knowledge of inflammatory pathophysiology in MPNs can therefore contribute to the development of more effective therapy.
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Affiliation(s)
- Daniel Arthur Corpuz Fisher
- Divisions of Hematology & Oncology, School of Medicine, Washington University in St. Louis, Saint Louis, MO, United States
| | - Jared Scott Fowles
- Divisions of Hematology & Oncology, School of Medicine, Washington University in St. Louis, Saint Louis, MO, United States
| | - Amy Zhou
- Divisions of Hematology & Oncology, School of Medicine, Washington University in St. Louis, Saint Louis, MO, United States
| | - Stephen Tracy Oh
- Divisions of Hematology & Oncology, School of Medicine, Washington University in St. Louis, Saint Louis, MO, United States
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11
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Abstract
Post-translational modifications of cellular substrates with ubiquitin and ubiquitin-like proteins (UBLs), including ubiquitin, SUMOs, and neural precursor cell-expressed developmentally downregulated protein 8, play a central role in regulating many aspects of cell biology. The UBL conjugation cascade is initiated by a family of ATP-dependent enzymes termed E1 activating enzymes and executed by the downstream E2-conjugating enzymes and E3 ligases. Despite their druggability and their key position at the apex of the cascade, pharmacologic modulation of E1s with potent and selective drugs has remained elusive until 2009. Among the eight E1 enzymes identified so far, those initiating ubiquitylation (UBA1), SUMOylation (SAE), and neddylation (NAE) are the most characterized and are implicated in various aspects of cancer biology. To date, over 40 inhibitors have been reported to target UBA1, SAE, and NAE, including the NAE inhibitor pevonedistat, evaluated in more than 30 clinical trials. In this Review, we discuss E1 enzymes, the rationale for their therapeutic targeting in cancer, and their different inhibitors, with emphasis on the pharmacologic properties of adenosine sulfamates and their unique mechanism of action, termed substrate-assisted inhibition. Moreover, we highlight other less-characterized E1s-UBA6, UBA7, UBA4, UBA5, and autophagy-related protein 7-and the opportunities for targeting these enzymes in cancer. SIGNIFICANCE STATEMENT: The clinical successes of proteasome inhibitors in cancer therapy and the emerging resistance to these agents have prompted the exploration of other signaling nodes in the ubiquitin-proteasome system including E1 enzymes. Therefore, it is crucial to understand the biology of different E1 enzymes, their roles in cancer, and how to translate this knowledge into novel therapeutic strategies with potential implications in cancer treatment.
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Affiliation(s)
- Samir H Barghout
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada (S.H.B., A.D.S.); Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada (S.H.B., A.D.S.); and Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt (S.H.B.)
| | - Aaron D Schimmer
- Department of Medical Biophysics, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada (S.H.B., A.D.S.); Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada (S.H.B., A.D.S.); and Department of Pharmacology and Toxicology, Faculty of Pharmacy, Tanta University, Tanta, Egypt (S.H.B.)
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12
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Darici S, Alkhaldi H, Horne G, Jørgensen HG, Marmiroli S, Huang X. Targeting PI3K/Akt/mTOR in AML: Rationale and Clinical Evidence. J Clin Med 2020; 9:E2934. [PMID: 32932888 PMCID: PMC7563273 DOI: 10.3390/jcm9092934] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 09/07/2020] [Accepted: 09/10/2020] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) is a highly heterogeneous hematopoietic malignancy characterized by excessive proliferation and accumulation of immature myeloid blasts in the bone marrow. AML has a very poor 5-year survival rate of just 16% in the UK; hence, more efficacious, tolerable, and targeted therapy is required. Persistent leukemia stem cell (LSC) populations underlie patient relapse and development of resistance to therapy. Identification of critical oncogenic signaling pathways in AML LSC may provide new avenues for novel therapeutic strategies. The phosphatidylinositol-3-kinase (PI3K)/Akt and the mammalian target of rapamycin (mTOR) signaling pathway, is often hyperactivated in AML, required to sustain the oncogenic potential of LSCs. Growing evidence suggests that targeting key components of this pathway may represent an effective treatment to kill AML LSCs. Despite this, accruing significant body of scientific knowledge, PI3K/Akt/mTOR inhibitors have not translated into clinical practice. In this article, we review the laboratory-based evidence of the critical role of PI3K/Akt/mTOR pathway in AML, and outcomes from current clinical studies using PI3K/Akt/mTOR inhibitors. Based on these results, we discuss the putative mechanisms of resistance to PI3K/Akt/mTOR inhibition, offering rationale for potential candidate combination therapies incorporating PI3K/Akt/mTOR inhibitors for precision medicine in AML.
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Affiliation(s)
- Salihanur Darici
- Haemato-Oncology/Systems Medicine Group, Paul O’Gorman Leukaemia Research Centre, University of Glasgow, Glasgow G12 0ZD, UK; (H.A.); (G.H.); (H.G.J.)
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy;
| | - Hazem Alkhaldi
- Haemato-Oncology/Systems Medicine Group, Paul O’Gorman Leukaemia Research Centre, University of Glasgow, Glasgow G12 0ZD, UK; (H.A.); (G.H.); (H.G.J.)
| | - Gillian Horne
- Haemato-Oncology/Systems Medicine Group, Paul O’Gorman Leukaemia Research Centre, University of Glasgow, Glasgow G12 0ZD, UK; (H.A.); (G.H.); (H.G.J.)
| | - Heather G. Jørgensen
- Haemato-Oncology/Systems Medicine Group, Paul O’Gorman Leukaemia Research Centre, University of Glasgow, Glasgow G12 0ZD, UK; (H.A.); (G.H.); (H.G.J.)
| | - Sandra Marmiroli
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, 41124 Modena, Italy;
| | - Xu Huang
- Haemato-Oncology/Systems Medicine Group, Paul O’Gorman Leukaemia Research Centre, University of Glasgow, Glasgow G12 0ZD, UK; (H.A.); (G.H.); (H.G.J.)
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13
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Ma L, Chen L, Li H, Ge L, Wang S, Zhang Z, Huang H, Shi L, Li T, Gu H, Lyu J, He L. Primaquine phosphate induces the apoptosis of ATRA-resistant acute promyelocytic leukemia cells by inhibition of the NF-κB pathway. J Leukoc Biol 2020; 107:685-693. [PMID: 32125014 DOI: 10.1002/jlb.3a0120-061rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 01/22/2020] [Accepted: 01/25/2020] [Indexed: 11/09/2022] Open
Abstract
As a subtype of acute myeloid leukemia (AML), acute promyelocytic leukemia (APL) is characterized by a chromosomal translocation, most of which result in the production of a PML-RAR alpha fusion protein. Although the overall survival rate of APL patients has improved dramatically due to all-trans retinoic acid (ATRA) treatment, ATRA-resistance remains a clinical challenge in the management of APL. Therefore, alternative agents should be considered for ATRA-resistant APL patients. Here, we report that antimalaria drug primaquine phosphate (PRQ) exhibits an anti-leukemia effect on both ATRA-sensitive cell line NB4 and ATRA-resistant APL cell lines, NB4-LR2, NB4-LR1, and NB4-MR2. Moreover, PRQ significantly inhibited primary colony formation of untreated or relapsed APL patients. Further study showed that PRQ could induce the apoptosis of APL cells by inhibiting NF-κB signaling pathway. The in vivo study showed that PRQ significantly inhibited NB4-LR2 xenograft tumors growth. These results suggest that PRQ is a potential therapeutic agent for ATRA-resistant APL patients.
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Affiliation(s)
- Lan Ma
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Lianjuan Chen
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Haoying Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Lu Ge
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Siheng Wang
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Zhida Zhang
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - He Huang
- Internal Medicine of Hematology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Liuzhi Shi
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Tong Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Haihua Gu
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
| | - Jianxin Lyu
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China.,Department of Laboratory Medicine, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Licai He
- Key Laboratory of Laboratory Medicine, Ministry of Education, School of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, China
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14
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Phospho-Profiling Linking Biology and Clinics in Pediatric Acute Myeloid Leukemia. Hemasphere 2019; 4:e312. [PMID: 32072137 PMCID: PMC7000467 DOI: 10.1097/hs9.0000000000000312] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 10/15/2019] [Accepted: 10/15/2019] [Indexed: 02/07/2023] Open
Abstract
Supplemental Digital Content is available in the text Aberrant activation of key signaling-molecules is a hallmark of acute myeloid leukemia (AML) and may have prognostic and therapeutic implications. AML summarizes several disease entities with a variety of genetic subtypes. A comprehensive model spanning from signal activation patterns in major genetic subtypes of pediatric AML (pedAML) to outcome prediction and pre-clinical response to signaling inhibitors has not yet been provided. We established a high-throughput flow-cytometry based method to assess activation of hallmark phospho-proteins (phospho-flow) in 166 bone-marrow derived pedAML samples under basal and cytokine stimulated conditions. We correlated levels of activated phospho-proteins at diagnosis with relapse incidence in intermediate (IR) and high risk (HR) subtypes. In parallel, we screened a set of signaling inhibitors for their efficacy against primary AML blasts in a flow-cytometry based ex vivo cytotoxicity assay and validated the results in a murine xenograft model. Certain phospho-signal patterns differ between genetic subtypes of pedAML. Some are consistently seen through all AML subtypes such as pSTAT5. In IR/HR subtypes high levels of GM-CSF stimulated pSTAT5 and low levels of unstimulated pJNK correlated with increased relapse risk overall. Combination of GM-CSF/pSTAT5high and basal/pJNKlow separated three risk groups among IR/HR subtypes. Out of 10 tested signaling inhibitors, midostaurin most effectively affected AML blasts and simultaneously blocked phosphorylation of multiple proteins, including STAT5. In a mouse xenograft model of KMT2A-rearranged pedAML, midostaurin significantly prolonged disease latency. Our study demonstrates the applicability of phospho-flow for relapse-risk assessment in pedAML, whereas functional phenotype-driven ex vivo testing of signaling inhibitors may allow individualized therapy.
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15
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Yuan T, Qi B, Jiang Z, Dong W, Zhong L, Bai L, Tong R, Yu J, Shi J. Dual FLT3 inhibitors: Against the drug resistance of acute myeloid leukemia in recent decade. Eur J Med Chem 2019; 178:468-483. [PMID: 31207462 DOI: 10.1016/j.ejmech.2019.06.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2019] [Revised: 05/16/2019] [Accepted: 06/02/2019] [Indexed: 01/18/2023]
Abstract
Acute myeloid leukemia (AML) is a malignant disease characterized by abnormal growth and differentiation of hematopoietic stem cells. Although the pathogenesis has not been fully elucidated, many specific gene mutations have been found in AML. Fms-like tyrosine kinase 3 (FLT3) is recognized as a drug target for the treatment of AML, and the activation mutations of FLT3 were found in about 30% of AML patients. Targeted inhibition of FLT3 receptor tyrosine kinase has shown promising results in the treatment of FLT3 mutation AML. Unfortunately, the therapeutic effects of FLT3 tyrosine kinase inhibitors used as AML monotherapy are usually accompanied by the high risk of resistance development within a few months after treatment. FLT3 dual inhibitors were generated with the co-inhibition of FLT3 and another target, such as CDK4, JAK2, MEK, Mer, Pim, etc., to solve the problems mentioned above. As a result, the therapeutic effect of the drug is significantly improved, while the toxic and side effects are reduced. Besides, the life quality of AML patients with FLT3 mutation has been effectively improved. In this paper, we reviewed the studies of dual FLT3 inhibitors that have been discovered in recent years for the treatment of AML.
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Affiliation(s)
- Ting Yuan
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Baowen Qi
- College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, 610106, China
| | - Zhongliang Jiang
- Miller School of Medicine, University of Miami, Miami, Florida, 33136, USA
| | - Wenjuan Dong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Lei Zhong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Lan Bai
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Rongsheng Tong
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China
| | - Jiying Yu
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China.
| | - Jianyou Shi
- Personalized Drug Therapy Key Laboratory of Sichuan Province, Sichuan Academy of Medical Science & Sichuan Provincial People's Hospital, School of Medicine of University of Electronic Science and Technology of China, Chengdu, 610072, China.
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16
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Song YK, Wang Y, Wen YY, Zhao P, Bian ZJ. MicroRNA-22 Suppresses Breast Cancer Cell Growth and Increases Paclitaxel Sensitivity by Targeting NRAS. Technol Cancer Res Treat 2019; 17:1533033818809997. [PMID: 30384806 PMCID: PMC6259065 DOI: 10.1177/1533033818809997] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
In recent study, microRNAs have various important functions in diverse biological
processes and progression of cancer. In human breast cancer, microRNA-22 has been reported
to be downregulated. However, molecular mechanism of microRNA-22 in breast cancer
progression and chemosensitivity has not been well studied. In our study, these results
demonstrated that microRNA-22 expression levels were significantly reduced in 40 pairs of
human breast cancer tissues when compared to normal tissues. Enforced expression of
microRNA-22 inhibited activity of cell proliferation and cell migration in breast cancer
cells. Furthermore, microRNA-22 targeted NRAS proto-oncogene, GTPase (NRAS) in breast
cancer cells. The expression levels of NRAS in human clinical specimens were higher in
breast cancer tissues when compared to normal tissues. Moreover, microRNA-22 sensitized
breast cancer cells to paclitaxel by regulation of NRAS. Our results then demonstrated
that microRNA-22 functioned as a tumor suppressor microRNA and indicated potential
application for the diagnosis and treatment of cancer in the future.
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Affiliation(s)
- Ying-Kui Song
- 1 Intensive Care Unit, Jining No. 1 People's Hospital, Jining, Shandong Province, People's Republic of China
| | - Yang Wang
- 2 Department of Breast and Thyroid, Jining No. 1 People's Hospital, Jining, Shandong Province, People's Republic of China
| | - Yi-Yang Wen
- 3 Department of Pathology, Jining No. 1 People's Hospital, Jining, Shandong Province, People's Republic of China
| | - Pei Zhao
- 2 Department of Breast and Thyroid, Jining No. 1 People's Hospital, Jining, Shandong Province, People's Republic of China
| | - Zhi-Jie Bian
- 2 Department of Breast and Thyroid, Jining No. 1 People's Hospital, Jining, Shandong Province, People's Republic of China
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17
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Liu X, Lv X, Yang Q, Jin H, Zhou W, Fan Q. MicroRNA-29a Functions as a Tumor Suppressor and Increases Cisplatin Sensitivity by Targeting NRAS in Lung Cancer. Technol Cancer Res Treat 2018; 17:1533033818758905. [PMID: 29495918 PMCID: PMC5843100 DOI: 10.1177/1533033818758905] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
MicroRNAs have been reported to play an important role in diverse biological processes and progression of various cancers. MicroRNA-29a has been observed to be downregulated in human lung cancer tissues, but the function of microRNA-29a in lung cancer has not been well investigated. In this study, we demonstrated that the expression levels of microRNA-29a were significantly downregulated in 38 pairs of lung cancer tissues when compared to adjacent normal tissues. Overexpression of microRNA-29a inhibited the activity of cell proliferation and colony formation of lung cancer cells, H1299 and A549. Furthermore, microRNA-29a targeted NRAS proto-oncogene in lung cancer cells. In human clinical specimens, NRAS proto-oncogene was highly expressed in human lung cancer tissues compared to normal tissues. More interestingly, microRNA-29a also sensitizes lung cancer cells to cisplatin (CDDP[Please replace “CDDP” with its expansion in the abstract and also provide expansion for the same in its first occurrence in text, if appropriate.]) via its target, NRAS proto-oncogene. Thus, our results in this study demonstrated that microRNA-29a acted as a tumor suppressor microRNA, which indicated potential application of microRNAs for the treatment of human lung cancer in the future.
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Affiliation(s)
- Xin Liu
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Xianping Lv
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qiankun Yang
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Huifang Jin
- 1 Department of Blood Transfusion, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Wenpeng Zhou
- 2 Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Qingxia Fan
- 2 Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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18
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Ignatz-Hoover JJ, Wang V, Mackowski NM, Roe AJ, Ghansah IK, Ueda M, Lazarus HM, de Lima M, Paietta E, Fernandez H, Cripe L, Tallman M, Wald DN. Aberrant GSK3β nuclear localization promotes AML growth and drug resistance. Blood Adv 2018; 2:2890-2903. [PMID: 30385433 PMCID: PMC6234355 DOI: 10.1182/bloodadvances.2018016006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 08/23/2018] [Indexed: 12/12/2022] Open
Abstract
Acute myeloid leukemia (AML) is a devastating disease with poor patient survival. As targetable mutations in AML are rare, novel oncogenic mechanisms are needed to define new therapeutic targets. We identified AML cells that exhibit an aberrant pool of nuclear glycogen synthase kinase 3β (GSK3β). This nuclear fraction drives AML growth and drug resistance. Nuclear, but not cytoplasmic, GSK3β enhances AML colony formation and AML growth in mouse models. Nuclear GSK3β drives AML partially by promoting nuclear localization of the NF-κB subunit, p65. Finally, nuclear GSK3β localization has clinical significance as it strongly correlates to worse patient survival (n = 86; hazard ratio = 2.2; P < .01) and mediates drug resistance in cell and animal models. Nuclear localization of GSK3β may define a novel oncogenic mechanism in AML and represent a new therapeutic target.
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MESH Headings
- Animals
- Antineoplastic Agents/pharmacology
- Antineoplastic Agents/therapeutic use
- Cell Line, Tumor
- Cell Nucleus/metabolism
- Cell Proliferation/drug effects
- Cell Survival/drug effects
- Drug Resistance, Neoplasm
- Female
- Glycogen Synthase Kinase 3 beta/metabolism
- Humans
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/mortality
- Leukemia, Myeloid, Acute/pathology
- Mice
- Mice, Inbred NOD
- Mice, SCID
- Myeloid-Lymphoid Leukemia Protein/metabolism
- NF-kappa B/metabolism
- Oncogene Proteins, Fusion/metabolism
- Proportional Hazards Models
- Survival Rate
- Transplantation, Heterologous
- Up-Regulation
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Affiliation(s)
| | - Victoria Wang
- Eastern Cooperative Oncology Group-American College of Radiology Imaging Network (ECOG-ACRIN) Biostatistics Center, Dana-Farber Cancer Institute, Boston, MA
| | | | - Anne J Roe
- Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Isaac K Ghansah
- Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Masumi Ueda
- Department of Pathology, Case Western Reserve University, Cleveland, OH
| | - Hillard M Lazarus
- Department of Hematology and Oncology, University Hospitals Case Medical Center and Case Western Reserve University, Cleveland, OH
| | - Marcos de Lima
- Department of Hematology and Oncology, University Hospitals Case Medical Center and Case Western Reserve University, Cleveland, OH
| | | | - Hugo Fernandez
- Department of Blood and Marrow Transplant, Moffitt Cancer Center, Tampa, FL
| | - Larry Cripe
- Department of Medicine, Indiana University, Indianapolis, IN
| | - Martin Tallman
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY; and
| | - David N Wald
- Department of Pathology, Case Western Reserve University, Cleveland, OH
- Department of Pathology, University Hospitals Case Medical Center, Cleveland, OH
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19
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Zhou J, Chooi JY, Ching YQ, Quah JY, Toh SHM, Ng Y, Tan TZ, Chng WJ. NF-κB promotes the stem-like properties of leukemia cells by activation of LIN28B. World J Stem Cells 2018; 10:34-42. [PMID: 29707103 PMCID: PMC5919888 DOI: 10.4252/wjsc.v10.i4.34] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 03/21/2018] [Accepted: 04/10/2018] [Indexed: 02/06/2023] Open
Abstract
AIM To examine whether nuclear factor kappa B (NF-κB) activity regulates LIN28B expression and their roles in leukemia stem cell (LSC)-like properties.
METHODS We used pharmacological inhibitor and cell viability assays to examine the relation between NF-κB and LIN28B. Western blot and qRT-PCR was employed to determine their protein and mRNA levels. Luciferase reporter was constructed and applied to explore the transcriptional regulation of LIN28B. We manipulated LIN28B level in acute myeloid leukemia (AML) cells and investigated LSC-like properties with colony forming and serial replating assays.
RESULTS This study revealed the relationship between NF-κB and LIN28B in AML cells through drug inhibition and overexpression experiments. Notably, inhibition of NF-κB by pharmacological inhibitors reduced LIN28B expression and decreased cell proliferation. We demonstrated that NF-κB binds to the -819 to -811 region of LIN28B promoter, and transcriptionally regulates LIN28B expression. LIN28B protein was significantly elevated in NFκB1 transfected cells compared to vector control. Importantly, ectopic expression of LIN28B partially rescued the self-renewal capacity impaired by pharmacological inhibition of NF-κB activity.
CONCLUSION These results uncover a regulatory signaling, NF-κB/LIN28B, which plays a pivotal role in leukemia stem cell-like properties and it could serve as a promising intervening target for effective treatment of AML disease.
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Affiliation(s)
- Jianbiao Zhou
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Jing-Yuan Chooi
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
| | - Ying Qing Ching
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Jessie Yiying Quah
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Sabrina Hui-Min Toh
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Yvonne Ng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Tuan Zea Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
| | - Wee-Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore 117599, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119074, Singapore
- Department of Hematology-Oncology, National University Cancer Institute, Singapore 119228, Singapore
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20
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The poly(ADP-ribose) polymerase inhibitor olaparib induces up-regulation of death receptors in primary acute myeloid leukemia blasts by NF-κB activation. Cancer Lett 2018. [PMID: 29526802 DOI: 10.1016/j.canlet.2018.03.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Olaparib is a potent orally bioavailable poly(ADP-ribose) polymerase inhibitor (PARPi), approved for BRCA-mutated ovarian and breast cancers. We recently showed that olaparib at clinically achievable concentrations exerts anti-proliferative and pro-apoptotic effects in vitro as monotherapy against primary acute myeloid leukemia (AML) blasts, while sparing normal bone marrow (BM) hematopoietic cells. Since AML expresses low levels of death receptors that may contribute to apoptosis resistance, in this study we investigated whether the anti-leukemia activity of olaparib involves modulation of FAS and TRAIL receptors DR5 and DR4. Our data show that the primary AML samples tested express FAS and DR5 transcripts at levels lower than normal BM. In this context, apoptosis triggered by olaparib is associated with a dose-dependent up-regulation of death receptors expression and caspase 8 activation. Olaparib-mediated FAS up-regulation requires NF-κB activation, as indicated by the increase of p65 phosphorylation and decrease of IκBα. Moreover, FAS up-regulation is abrogated by pretreatment of AML cells with two different NF-κB inhibitors. These results indicate that NF-κB activation and consequent induction of death receptor expression contribute to the anti-leukemia effect of olaparib in AML.
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21
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Zhang G, Gao X, Zeng H, Li Y, Guo X. Virosecurinine induces apoptosis in human leukemia THP-1 cells and other underlying molecular mechanisms. Oncol Lett 2018; 15:849-854. [PMID: 29399150 PMCID: PMC5772865 DOI: 10.3892/ol.2017.7437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2016] [Accepted: 10/13/2017] [Indexed: 12/02/2022] Open
Abstract
Virosecurinine, a primary alkaloid from Securinega suffruticosa plant is known as a potent differentiation-inducing agent in acute leukemia cells. The present study aimed to investigate the effects and underlying mechanisms of virosecurinine on human leukemia THP-1 cells in vitro. The effects of virosecurinine on cell proliferation were assessed by CCK-8. The effects on apoptosis and cell cycle were assessed by staining with annexin V-fluorescein isothiocyanate and propidium iodide, respectively followed by flow cytometric analysis. The apoptotic cell bodies were observed using a transmission electron microscope, while the mRNA expression of phosphoinositide 3-kinase (PI3K), protein kinase B (AKT), mechanistic target of rapamycin (mTOR) and phosphatase and tensin homolog (PTEN) in THP-1 was evaluated by reverse transcription-quantitative polymerase chain reaction (RT-qPCR). Treatment with virosecurinine was able to decrease the viability of THP-1 cells in a dose- and time-dependent manner. The IC50 values of virosecurinine at 24, 48, and 72 h post-treatment were 68.128, 23.615, and 13.423 µmol/l, respectively. Cell cycle was arrested at the G1/S phase in virosecurinine-treated cells; however, not in untreated control cells. Numerous apoptotic bodies were observed in the THP-1 cells, which were treated with 12.5 µmol/l virosecurinine for 48 h. RT-qPCR indicated that treatment with virosecurinine resulted in upregulated PTEN expression and downregulated expression of PI3K, AKT and mTOR in THP-1 cells. The present study demonstrated that treatment with virosecurinine was able to inhibit proliferation and induce apoptosis in THP-1cells by exerting an inhibitory effect on the activation of PI3K/AKT/mTOR signaling pathways. Therefore, our data suggested that virosecurinine is a promising anti-tumor agent for the treatment of acute monocytic leukemia.
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Affiliation(s)
- Gang Zhang
- Department of Hematology, First Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang 314000, P.R. China
| | - Xiaohui Gao
- Department of Pediatrics, First Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang 314000, P.R. China
| | - Hui Zeng
- Department of Hematology, First Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang 314000, P.R. China
| | - Yuan Li
- Department of Hematology, First Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang 314000, P.R. China
| | - Xiaojun Guo
- Department of Hematology, First Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang 314000, P.R. China
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Carretta M, Brouwers-Vos AZ, Bosman M, Horton SJ, Martens JHA, Vellenga E, Schuringa JJ. BRD3/4 inhibition and FLT3-ligand deprivation target pathways that are essential for the survival of human MLL-AF9+ leukemic cells. PLoS One 2017; 12:e0189102. [PMID: 29240787 PMCID: PMC5730124 DOI: 10.1371/journal.pone.0189102] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Accepted: 11/13/2017] [Indexed: 01/15/2023] Open
Abstract
In the present work we aimed to identify targetable signaling networks in human MLL-AF9 leukemias. We show that MLL-AF9 cells critically depend on FLT3-ligand induced pathways as well as on BRD3/4 for their survival. We evaluated the in vitro and in vivo efficacy of the BRD3/4 inhibitor I-BET151 in various human MLL-AF9 (primary) models and patient samples and analyzed the transcriptome changes following treatment. To further understand the mode of action of BRD3/4 inhibition, we performed ChIP-seq experiments on the MLL-AF9 complex in THP1 cells and compared it to RNA-seq data of I-BET151 treated cells. While we could confirm a consistent and specific downregulation of key-oncogenic drivers such as MYC and BCL2, we found that the majority of I-BET151-responsive genes were not direct MLL-AF9 targets. In fact, MLL-AF9 specific targets such as the HOXA cluster, MEIS1 and other cell cycle regulators such as CDK6 were not affected by I-BET151 treatment. Furthermore, we also highlight how MLL-AF9 transformed cells are dependent on the function of non-mutated hematopoietic transcription factors and tyrosine kinases such as the FLT3-TAK1/NF-kB pathway, again impacting on BCL2 but not on the HOXA cluster. We conclude that BRD3/4 and the FLT3-TAK1/NF-kB pathways collectively control a set of targets that are critically important for the survival of human MLL-AF9 cells.
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Affiliation(s)
- Marco Carretta
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Annet Z. Brouwers-Vos
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Matthieu Bosman
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Sarah J. Horton
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Joost H. A. Martens
- Department of Molecular Biology, Faculty of Science and Medicine, Radboud Institute for Molecular Life Sciences, Radboud University Nijmegen, Nijmegen, The Netherlands
| | - Edo Vellenga
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Jan Jacob Schuringa
- Department of Experimental Hematology, Cancer Research Center Groningen (CRCG), University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
- * E-mail:
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23
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Mattes K, Berger G, Geugien M, Vellenga E, Schepers H. CITED2 affects leukemic cell survival by interfering with p53 activation. Cell Death Dis 2017; 8:e3132. [PMID: 29072699 PMCID: PMC5680917 DOI: 10.1038/cddis.2017.548] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 08/28/2017] [Accepted: 09/13/2017] [Indexed: 02/07/2023]
Abstract
CITED2 (CBP/p300-interacting-transactivator-with-an-ED-rich-tail 2) is a regulator of the acetyltransferase CBP/p300 and elevated CITED2 levels are shown in a number of acute myeloid leukemia (AML). To study the in vivo role of CITED2 in AML maintenance, AML cells were transduced with a lentiviral construct for RNAi-mediated knockdown of CITED2. Mice transplanted with CITED2-knockdown AML cells (n=4) had a significantly longer survival compared to mice transplanted with control AML cells (P<0.02). In vitro, the reduction of CITED2 resulted in increased p53-mediated apoptosis and CDKN1A expression, whereas BCL2 levels were reduced. The activation of p53 upon CITED2 knockdown is not a direct consequence of increased CBP/p300-activity towards p53, since no increased formation of CBP/p300/p53 complexes was demonstrated and inhibition of CBP/p300-activity could not rescue the phenotype of CITED2-deficient cells. Instead, loss of CITED2 had an inhibitory effect on the AKT-signaling pathway, which was indicated by decreased levels of phosphorylated AKT and altered expression of the AKT-pathway regulators PHLDA3 and SOX4. Notably, simultaneous upregulation of BCL2 or downregulation of the p53-target gene PHLDA3 rescued the apoptotic phenotype in CITED2-knockdown cells. Furthermore, knockdown of CITED2 led to a decreased interaction of p53 with its inhibitor MDM2, which results in increased amounts of total p53 protein. In summary, our data indicate that CITED2 functions in pathways regulating p53 activity and therefore represents an interesting target for AML therapy, since de novo AML cases are characterized by an inactivation of the p53 pathway or deregulation of apoptosis-related genes.
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Affiliation(s)
- Katharina Mattes
- Department of Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Gerbrig Berger
- Department of Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Marjan Geugien
- Department of Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Edo Vellenga
- Department of Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Hein Schepers
- Department of Hematology, Cancer Research Center Groningen, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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24
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Siveen KS, Uddin S, Mohammad RM. Targeting acute myeloid leukemia stem cell signaling by natural products. Mol Cancer 2017; 16:13. [PMID: 28137265 PMCID: PMC5282735 DOI: 10.1186/s12943-016-0571-x] [Citation(s) in RCA: 96] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Accepted: 12/19/2016] [Indexed: 12/11/2022] Open
Abstract
Acute myeloid leukemia (AML) is the most commonly diagnosed leukemia in adults (25%) and comprises 15-20% in children. It is a genetically heterogeneous aggressive disease characterized by the accumulation of somatically acquired genetic changes, altering self-renewal, proliferation, and differentiation of hematopoietic progenitor cells, resulting in uncontrolled clonal proliferation of malignant progenitor myeloid cells in the bone marrow, peripheral blood, and occasionally in other body tissues. Treatment with modern chemotherapy regimen (cytarabine and daunorubicin) usually achieves high remission rates, still majority of patients are found to relapse, resulting in only 40-45% overall 5 year survival in young patients and less than 10% in the elderly AML patients. The leukemia stem cells (LSCs) are characterized by their unlimited self-renewal, repopulating potential and long residence in a quiescent state of G0/G1 phase. LSCs are considered to have a pivotal role in the relapse and refractory of AML. Therefore, new therapeutic strategies to target LSCs with limited toxicity towards the normal hematopoietic population is critical for the ultimate curing of AML. Ongoing research works with natural products like parthenolide (a natural plant extract derived compound) and its derivatives, that have the ability to target multiple pathways that regulate the self-renewal, growth and survival of LSCs point to ways for a possible complete remission in AML. In this review article, we will update and discuss various natural products that can target LSCs in AML.
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Affiliation(s)
- Kodappully Sivaraman Siveen
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, PO Box 3050, Doha, Qatar.
| | - Shahab Uddin
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
| | - Ramzi M Mohammad
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, PO Box 3050, Doha, Qatar
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25
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Rezvani K. UBXD Proteins: A Family of Proteins with Diverse Functions in Cancer. Int J Mol Sci 2016; 17:ijms17101724. [PMID: 27754413 PMCID: PMC5085755 DOI: 10.3390/ijms17101724] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 09/24/2016] [Accepted: 10/08/2016] [Indexed: 12/15/2022] Open
Abstract
The UBXD family is a diverse group of UBX (ubiquitin-regulatory X) domain-containing proteins in mammalian cells. Members of this family contain a UBX domain typically located at the carboxyl-terminal of the protein. In contrast to the UBX domain shared by all members of UBXD family, the amino-terminal domains are diverse and appear to carry out different roles in a subcellular localization-dependent manner. UBXD proteins are principally associated with the endoplasmic reticulum (ER), where they positively or negatively regulate the ER-associated degradation machinery (ERAD). The distinct protein interaction networks of UBXD proteins allow them to have specific functions independent of the ERAD pathway in a cell type- and tissue context-dependent manner. Recent reports have illustrated that a number of mammalian members of the UBXD family play critical roles in several proliferation and apoptosis pathways dysregulated in selected types of cancer. This review covers recent advances that elucidate the therapeutic potential of selected members of the UBXD family that can contribute to tumor growth.
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Affiliation(s)
- Khosrow Rezvani
- Division of Basic Biomedical Sciences, Sanford School of Medicine, The University of South Dakota, 414 E. Clark Street, Lee Medical Building, Vermillion, SD 57069, USA.
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26
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Lindblad O, Cordero E, Puissant A, Macaulay L, Ramos A, Kabir NN, Sun J, Vallon-Christersson J, Haraldsson K, Hemann MT, Borg Å, Levander F, Stegmaier K, Pietras K, Rönnstrand L, Kazi JU. Aberrant activation of the PI3K/mTOR pathway promotes resistance to sorafenib in AML. Oncogene 2016; 35:5119-31. [PMID: 26999641 PMCID: PMC5399143 DOI: 10.1038/onc.2016.41] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 01/12/2016] [Accepted: 02/08/2016] [Indexed: 12/18/2022]
Abstract
Therapy directed against oncogenic FLT3 has been shown to induce response in patients with acute myeloid leukemia (AML), but these responses are almost always transient. To address the mechanism of FLT3 inhibitor resistance, we generated two resistant AML cell lines by sustained treatment with the FLT3 inhibitor sorafenib. Parental cell lines carry the FLT3-ITD (tandem duplication) mutation and are highly responsive to FLT3 inhibitors, whereas resistant cell lines display resistance to multiple FLT3 inhibitors. Sanger sequencing and protein mass-spectrometry did not identify any acquired mutations in FLT3 in the resistant cells. Moreover, sorafenib treatment effectively blocked FLT3 activation in resistant cells, whereas it was unable to block colony formation or cell survival, suggesting that the resistant cells are no longer FLT3 dependent. Gene expression analysis of sensitive and resistant cell lines, as well as of blasts from patients with sorafenib-resistant AML, suggested an enrichment of the PI3K/mTOR pathway in the resistant phenotype, which was further supported by next-generation sequencing and phospho-specific-antibody array analysis. Furthermore, a selective PI3K/mTOR inhibitor, gedatolisib, efficiently blocked proliferation, colony and tumor formation, and induced apoptosis in resistant cell lines. Gedatolisib significantly extended survival of mice in a sorafenib-resistant AML patient-derived xenograft model. Taken together, our data suggest that aberrant activation of the PI3K/mTOR pathway in FLT3-ITD-dependent AML results in resistance to drugs targeting FLT3.
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Affiliation(s)
- O Lindblad
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Department of Hematology and Vascular Disorders, Skåne University Hospital, Lund, Sweden
| | - E Cordero
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - A Puissant
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - L Macaulay
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - A Ramos
- Koch Institute for Integrative Cancer Research at Massachusetts Institute of Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - N N Kabir
- Laboratory of Computational Biochemistry, KN Biomedical Research Institute, Barisal, Bangladesh
| | - J Sun
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | | | - K Haraldsson
- Department of Oncology and Pathology, Lund University, Lund, Sweden
| | - M T Hemann
- Koch Institute for Integrative Cancer Research at Massachusetts Institute of Technology, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Å Borg
- Department of Oncology and Pathology, Lund University, Lund, Sweden
| | - F Levander
- Bioinformatics Infrastructure for Life Sciences (BILS), Department of Immunotechnology, Lund University, Lund, Sweden
| | - K Stegmaier
- Department of Pediatric Oncology, Dana-Farber Cancer Institute and Boston Children's Hospital, Harvard Medical School, Boston, MA, USA
| | - K Pietras
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - L Rönnstrand
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden
| | - J U Kazi
- Division of Translational Cancer Research, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Lund Stem Cell Center, Department of Laboratory Medicine, Lund University, Lund, Sweden.,Laboratory of Computational Biochemistry, KN Biomedical Research Institute, Barisal, Bangladesh
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27
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Constitutive NF-κB activation in AML: Causes and treatment strategies. Crit Rev Oncol Hematol 2016; 98:35-44. [DOI: 10.1016/j.critrevonc.2015.10.001] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 08/12/2015] [Accepted: 10/01/2015] [Indexed: 01/01/2023] Open
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28
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A TIM-3/Gal-9 Autocrine Stimulatory Loop Drives Self-Renewal of Human Myeloid Leukemia Stem Cells and Leukemic Progression. Cell Stem Cell 2015; 17:341-52. [PMID: 26279267 DOI: 10.1016/j.stem.2015.07.011] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 05/17/2015] [Accepted: 07/20/2015] [Indexed: 10/23/2022]
Abstract
Signaling mechanisms underlying self-renewal of leukemic stem cells (LSCs) are poorly understood, and identifying pathways specifically active in LSCs could provide opportunities for therapeutic intervention. T-cell immunoglobin mucin-3 (TIM-3) is expressed on the surface of LSCs in many types of human acute myeloid leukemia (AML), but not on hematopoietic stem cells (HSCs). Here, we show that TIM-3 and its ligand, galectin-9 (Gal-9), constitute an autocrine loop critical for LSC self-renewal and development of human AML. Serum Gal-9 levels were significantly elevated in AML patients and in mice xenografted with primary human AML samples, and neutralization of Gal-9 inhibited xenogeneic reconstitution of human AML. Gal-9-mediated stimulation of TIM-3 co-activated NF-κB and β-catenin signaling, pathways known to promote LSC self-renewal. These changes were further associated with leukemic transformation of a variety of pre-leukemic disorders and together highlight that targeting the TIM-3/Gal-9 autocrine loop could be a useful strategy for treating myeloid leukemias.
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29
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Wang L, Shi ZM, Jiang CF, Liu X, Chen QD, Qian X, Li DM, Ge X, Wang XF, Liu LZ, You YP, Liu N, Jiang BH. MiR-143 acts as a tumor suppressor by targeting N-RAS and enhances temozolomide-induced apoptosis in glioma. Oncotarget 2015; 5:5416-27. [PMID: 24980823 PMCID: PMC4170647 DOI: 10.18632/oncotarget.2116] [Citation(s) in RCA: 108] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Therapeutic applications of microRNAs (miRNAs) in RAS-driven glioma were valuable, but their specific roles and functions have yet to be fully elucidated. Here, we firstly report that miR-143 directly targets the neuroblastoma RAS viral oncogene homolog (N-RAS) and functions as a tumor-suppressor in glioma. Overexpression of miR-143 decreased the expression of N-RAS, inhibited PI3K/AKT, MAPK/ERK signaling, and attenuated the accumulation of p65 in nucleus of glioma cells. In human clinical specimens, miR-143 was downregulated where an adverse with N-RAS expression was observed. Furthermore, overexpression of miR-143 decreased glioma cell migration, invasion, tube formation and slowed tumor growth and angiogenesis in a manner associated with N-RAS downregulation in vitro and in vivo. Finally, miR-143 also sensitizes glioma cells to temozolomide (TMZ),the first-line drug for glioma treatment. Taken together, for the first time, our results demonstrate that miR-143 plays a significant role in inactivating the RAS signaling pathway through the inhibition of N-RAS, which may provide a novel therapeutic strategy for treatment of glioma and other RAS-driven cancers.
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Affiliation(s)
- Lin Wang
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China. These authors contributed equally to this work
| | - Zhu-Mei Shi
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China. Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. These authors contributed equally to this work
| | - Cheng-Fei Jiang
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China. These authors contributed equally to this work
| | - Xue Liu
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Qiu-Dan Chen
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xu Qian
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Dong-Mei Li
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xin Ge
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China
| | - Xie-Feng Wang
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ling-Zhi Liu
- Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, USA
| | - Yong-Ping You
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ning Liu
- Department of Neurosurgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Bing-Hua Jiang
- State Key Lab of Reproductive Medicine, Department of Pathology, Nanjing Medical University, Nanjing, China. Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, USA
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30
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Chen CC, Wu ML, Doerksen RJ, Ho CT, Huang TC. Andrographolide induces apoptosis via down-regulation of glyoxalase 1 and HMG-CoA reductase in HL-60 cells. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.01.048] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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31
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Zhou J, Ching YQ, Chng WJ. Aberrant nuclear factor-kappa B activity in acute myeloid leukemia: from molecular pathogenesis to therapeutic target. Oncotarget 2015; 6:5490-500. [PMID: 25823927 PMCID: PMC4467382 DOI: 10.18632/oncotarget.3545] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Accepted: 02/15/2015] [Indexed: 02/07/2023] Open
Abstract
The overall survival of patients with acute myeloid leukemia (AML) has not been improved significantly over the last decade. Molecularly targeted agents hold promise to change the therapeutic landscape in AML. The nuclear factor kappa B (NF-κB) controls a plethora of biological process through switching on and off its long list of target genes. In AML, constitutive NF-κB has been detected in 40% of cases and its aberrant activity enable leukemia cells to evade apoptosis and stimulate proliferation. These facts suggest that NF-κB signaling pathway plays a fundamental role in the development of AML and it represents an attractive target for the intervention of AML. This review summarizes our current knowledge of NF-κB signaling transduction including canonical and non-canonical NF-κB pathways. Then we specifically highlight what factors contribute to the aberrant activation of NF-κB activity in AML, followed by an overview of 8 important clinical trials of the first FDA approved proteasome inhibitor, Bortezomib (Velcade), which is a NF-κB inhibitor too, in combination with other therapeutic agents in patients with AML. Finally, this review discusses the future directions of NF-κB inhibitor in treatment of AML, especially in targeting leukemia stem cells (LSCs).
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Affiliation(s)
- Jianbiao Zhou
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, Republic of Singapore
| | - Ying Qing Ching
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, Republic of Singapore
| | - Wee-Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, 14 Medical Drive, Centre for Translational Medicine, Singapore, Republic of Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
- Department of Hematology-Oncology, National University Cancer Institute of Singapore (NCIS), The National University Health System (NUHS), Singapore, Republic of Singapore
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32
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Reinisch A, Chan SM, Thomas D, Majeti R. Biology and Clinical Relevance of Acute Myeloid Leukemia Stem Cells. Semin Hematol 2015; 52:150-64. [PMID: 26111462 DOI: 10.1053/j.seminhematol.2015.03.008] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Evidence for the cancer stem cell model was first demonstrated in xenotransplanted blood and bone marrow samples from patients with acute myeloid leukemia (AML) almost two decades ago, supporting the concept that a rare clonal and mutated leukemic stem cell (LSC) population is sufficient to drive leukemic growth. The inability to eliminate LSCs with conventional therapies is thought to be the primary cause of disease relapse in AML patients, and as such, novel therapies with the ability to target this population are required to improve patient outcomes. An important step towards this goal is the identification of common immunophenotypic surface markers and biological properties that distinguish LSCs from normal hematopoietic stem and progenitor cells (HSPCs) across AML patients. This work has resulted in the development of a large number of potential LSC-selective therapies that target cell surface molecules, intracellular signaling pathways, and the bone marrow microenvironment. Here, we will review the basic biology, immunophenotypic detection, and clinical relevance of LSCs, as well as emerging biological and small-molecule strategies that either directly target LSCs or indirectly target these cells through modulation of their microenvironment.
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Affiliation(s)
- Andreas Reinisch
- Department of Medicine, Division of Hematology, Cancer Institute, and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA
| | - Steven M Chan
- Department of Medicine, Division of Hematology, Cancer Institute, and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA
| | - Daniel Thomas
- Department of Medicine, Division of Hematology, Cancer Institute, and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA
| | - Ravindra Majeti
- Department of Medicine, Division of Hematology, Cancer Institute, and Institute for Stem Cell Biology and Regenerative Medicine, Stanford University School of Medicine, Stanford, CA.
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Dual PI3K/mTOR inhibition shows antileukemic activity in MLL-rearranged acute myeloid leukemia. Leukemia 2014; 29:828-38. [PMID: 25322685 DOI: 10.1038/leu.2014.305] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 09/26/2014] [Accepted: 10/02/2014] [Indexed: 01/11/2023]
Abstract
In acute myeloid leukemia (AML), several signaling pathways such as the phosphatidylinositol-3-kinase/AKT and the mammalian target of rapamycin (PI3K/AKT/mTOR) pathway are deregulated and constitutively activated as a consequence of genetic and cytogenetic abnormalities. We tested the effectiveness of PI3K/AKT/mTOR-targeting therapies and tried to identify alterations that associate with treatment sensitivity. By analyzing primary samples and cell lines, we observed a wide range of cytotoxic activity for inhibition of AKT (MK-2206), mTORC1 (rapamycin) and PI3K/mTORC1/2 (BEZ-235) with a high sensitivity of cells carrying an MLL rearrangement. In vivo PI3K/mTOR inhibition delayed tumor progression, reduced tumor load and prolonged survival in an MLL-AF9(+)/FLT3-ITD(+) xenograft mouse model. By performing targeted amplicon sequencing in 38 MLL-AF9(+) and 125 cytogenetically normal AML patient samples, we found a high additional mutation rate for genes involved in growth factor signaling in 79% of all MLL-AF9(+) samples, which could lead to a possible benefit of this cohort. PI3K/mTOR inhibition for 24 h led to the cross-activation of the ERK pathway. Further in vitro studies combining PI3K/mTOR and ERK pathway inhibition revealed highly synergistic effects in apoptosis assays. Our data implicate a possible therapeutic benefit of PI3K/mTOR inhibition in the MLL-mutated subgroup. Inhibiting rescue pathways could improve the therapeutic efficacy of PI3K-targeted therapies in AML.
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Abstract
Development and maintenance of leukemia can be partially attributed to alterations in (anti)-apoptotic gene expression. Genome-wide transcriptome analyses revealed that 89 apoptosis-associated genes were differentially expressed between patient acute myeloid leukemia (AML) CD34(+) cells and normal bone marrow (NBM) CD34(+) cells. Among these, transforming growth factor-β activated kinase 1 (TAK1) was strongly upregulated in AML CD34(+) cells. Genetic downmodulation or pharmacologic inhibition of TAK1 activity strongly impaired primary AML cell survival and cobblestone formation in stromal cocultures. TAK1 inhibition was mainly due to blockade of the nuclear factor κB (NF-κB) pathway, as TAK1 inhibition resulted in reduced levels of P-IκBα and p65 activity. Overexpression of a constitutive active variant of NF-κB partially rescued TAK1-depleted cells from apoptosis. Importantly, NBM CD34(+) cells were less sensitive to TAK1 inhibition compared with AML CD34(+) cells. Knockdown of TAK1 also severely impaired leukemia development in vivo and prolonged overall survival in a humanized xenograft mouse model. In conclusion, our results indicate that TAK1 is frequently overexpressed in AML CD34(+) cells, and that TAK1 inhibition efficiently targets leukemic stem/progenitor cells in an NF-κB-dependent manner.
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Davoudi Z, Akbarzadeh A, Rahmatiyamchi M, Movassaghpour AA, Alipour M, Nejati-Koshki K, Sadeghi Z, Dariushnejad H, Zarghami N. Molecular Target Therapy of AKT and NF-kB Signaling Pathways and Multidrug Resistance by Specific Cell Penetrating Inhibitor Peptides in HL-60 Cells. Asian Pac J Cancer Prev 2014; 15:4353-8. [DOI: 10.7314/apjcp.2014.15.10.4353] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Saito Y, Yuki H, Kuratani M, Hashizume Y, Takagi S, Honma T, Tanaka A, Shirouzu M, Mikuni J, Handa N, Ogahara I, Sone A, Najima Y, Tomabechi Y, Wakiyama M, Uchida N, Tomizawa-Murasawa M, Kaneko A, Tanaka S, Suzuki N, Kajita H, Aoki Y, Ohara O, Shultz LD, Fukami T, Goto T, Taniguchi S, Yokoyama S, Ishikawa F. A pyrrolo-pyrimidine derivative targets human primary AML stem cells in vivo. Sci Transl Med 2013; 5:181ra52. [PMID: 23596204 DOI: 10.1126/scitranslmed.3004387] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leukemia stem cells (LSCs) that survive conventional chemotherapy are thought to contribute to disease relapse, leading to poor long-term outcomes for patients with acute myeloid leukemia (AML). We previously identified a Src-family kinase (SFK) member, hematopoietic cell kinase (HCK), as a molecular target that is highly differentially expressed in human primary LSCs compared with human normal hematopoietic stem cells (HSCs). We performed a large-scale chemical library screen that integrated a high-throughput enzyme inhibition assay, in silico binding prediction, and crystal structure determination and found a candidate HCK inhibitor, RK-20449, a pyrrolo-pyrimidine derivative with an enzymatic IC50 (half maximal inhibitory concentration) in the subnanomolar range. A crystal structure revealed that RK-20449 bound the activation pocket of HCK. In vivo administration of RK-20449 to nonobese diabetic (NOD)/severe combined immunodeficient (SCID)/IL2rg(null) mice engrafted with highly aggressive therapy-resistant AML significantly reduced human LSC and non-stem AML burden. By eliminating chemotherapy-resistant LSCs, RK-20449 may help to prevent relapse and lead to improved patient outcomes in AML.
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Affiliation(s)
- Yoriko Saito
- Laboratory for Human Disease Models, RIKEN Research Center for Allergy and Immunology, Yokohama, Kanagawa 230-0045, Japan
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Kuo HP, Wang Z, Lee DF, Iwasaki M, Duque-Afonso J, Wong SH, Lin CH, Figueroa ME, Su J, Lemischka IR, Cleary ML. Epigenetic roles of MLL oncoproteins are dependent on NF-κB. Cancer Cell 2013; 24:423-37. [PMID: 24054986 PMCID: PMC3816582 DOI: 10.1016/j.ccr.2013.08.019] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 07/12/2013] [Accepted: 08/22/2013] [Indexed: 11/21/2022]
Abstract
MLL fusion proteins in leukemia induce aberrant transcriptional elongation and associated chromatin perturbations; however, the upstream signaling pathways and activators that recruit or retain MLL oncoproteins at initiated promoters are unknown. Through functional and comparative genomic studies, we identified an essential role for NF-κB signaling in MLL leukemia. Suppression of NF-κB led to robust antileukemia effects that phenocopied loss of functional MLL oncoprotein or associated epigenetic cofactors. The NF-κB subunit RELA occupies promoter regions of crucial MLL target genes and sustains the MLL-dependent leukemia stem cell program. IKK/NF-κB signaling is required for wild-type and fusion MLL protein retention and maintenance of associated histone modifications, providing a molecular rationale for enhanced efficacy in therapeutic targeting of this pathway in MLL leukemias.
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Affiliation(s)
- Hsu-Ping Kuo
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Zhong Wang
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Dung-Fang Lee
- Department of Developmental and Regenerative Biology and The Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Masayuki Iwasaki
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Jesus Duque-Afonso
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Stephen H.K. Wong
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Chiou-Hong Lin
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Maria E. Figueroa
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jie Su
- Department of Developmental and Regenerative Biology and The Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Ihor R. Lemischka
- Department of Developmental and Regenerative Biology and The Black Family Stem Cell Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Michael L. Cleary
- Department of Pathology, Stanford University School of Medicine, Stanford, CA 94305, USA
- Correspondence: , Ph: 650-723-5471, Fax: 650-498-6222
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Krawczyk J, Keane N, Swords R, O'Dwyer M, Freeman CL, Giles FJ. Perifosine--a new option in treatment of acute myeloid leukemia? Expert Opin Investig Drugs 2013; 22:1315-27. [PMID: 23931614 DOI: 10.1517/13543784.2013.826648] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Perifosine is a novel targeted oral Akt inhibitor. In preclinical leukemia models, perifosine has an independent cytotoxic potential but also synergizes well with other rationally selected targeted agents. The evidence from clinical trials supporting the use of perifosine in the therapy of leukemias is limited. The optimal dose and schedule have yet to be defined. However, given its favorable toxicity profile and mechanism of action, the therapeutic potential of perifosine should be evaluated in well-designed clinical trials. AREAS COVERED The role of the phosphatidylinositol-3 kinase (PI3K)/Akt zpathway in normal cells, cancer and leukemias is discussed. The mechanism of action of perifosine and the basic information on the development and chemical properties are summarized. The evidence from in vivo and in vitro studies is presented. The efficacy and side effect profile are summarized. EXPERT OPINION The safety and tolerability profile of perifosine are satisfactory. The evidence from clinical trials in patients with leukemias is very limited. The preclinical data are encouraging. Perifosine has the potential to play a role in the treatment of leukemias in the future. Its role needs to be confirmed in clinical trials.
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Bosman MCJ, Schuringa JJ, Quax WJ, Vellenga E. Bortezomib sensitivity of acute myeloid leukemia CD34+ cells can be enhanced by targeting the persisting activity of NF-κB and the accumulation of MCL-1. Exp Hematol 2013; 41:530-538.e1. [DOI: 10.1016/j.exphem.2013.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 02/01/2013] [Accepted: 02/05/2013] [Indexed: 10/27/2022]
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Barrett D, Brown VI, Grupp SA, Teachey DT. Targeting the PI3K/AKT/mTOR signaling axis in children with hematologic malignancies. Paediatr Drugs 2012; 14:299-316. [PMID: 22845486 PMCID: PMC4214862 DOI: 10.2165/11594740-000000000-00000] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The phosphatidylinositiol 3-kinase (PI3K), AKT, mammalian target of rapamycin (mTOR) signaling pathway (PI3K/AKT/mTOR) is frequently dysregulated in disorders of cell growth and survival, including a number of pediatric hematologic malignancies. The pathway can be abnormally activated in childhood acute lymphoblastic leukemia (ALL), acute myelogenous leukemia (AML), and chronic myelogenous leukemia (CML), as well as in some pediatric lymphomas and lymphoproliferative disorders. Most commonly, this abnormal activation occurs as a consequence of constitutive activation of AKT, providing a compelling rationale to target this pathway in many of these conditions. A variety of agents, beginning with the rapamycin analogue (rapalog) sirolimus, have been used successfully to target this pathway in a number of pediatric hematologic malignancies. Rapalogs demonstrate significant preclinical activity against ALL, which has led to a number of clinical trials. Moreover, rapalogs can synergize with a number of conventional cytotoxic agents and overcome pathways of chemotherapeutic resistance for drugs commonly used in ALL treatment, including methotrexate and corticosteroids. Based on preclinical data, rapalogs are also being studied in AML, CML, and non-Hodgkin's lymphoma. Recently, significant progress has been made using rapalogs to treat pre-malignant lymphoproliferative disorders, including the autoimmune lymphoproliferative syndrome (ALPS); complete remissions in children with otherwise therapy-resistant disease have been seen. Rapalogs only block one component of the pathway (mTORC1), and newer agents are under preclinical and clinical development that can target different and often multiple protein kinases in the PI3K/AKT/mTOR pathway. Most of these agents have been tolerated in early-phase clinical trials. A number of PI3K inhibitors are under investigation. Of note, most of these also target other protein kinases. Newer agents are under development that target both mTORC1 and mTORC2, mTORC1 and PI3K, and the triad of PI3K, mTORC1, and mTORC2. Preclinical data suggest these dual- and multi-kinase inhibitors are more potent than rapalogs against many of the aforementioned hematologic malignancies. Two classes of AKT inhibitors are under development, the alkyl-lysophospholipids (APLs) and small molecule AKT inhibitors. Both classes have agents currently in clinical trials. A number of drugs are in development that target other components of the pathway, including eukaryotic translation initiation factor (eIF) 4E (eIF4E) and phosphoinositide-dependent protein kinase 1 (PDK1). Finally, a number of other key signaling pathways interact with PI3K/AKT/mTOR, including Notch, MNK, Syk, MAPK, and aurora kinase. These alternative pathways are being targeted alone and in combination with PI3K/AKT/mTOR inhibitors with promising preclinical results in pediatric hematologic malignancies. This review provides a comprehensive overview of the abnormalities in the PI3K/AKT/mTOR signaling pathway in pediatric hematologic malignancies, the agents that are used to target this pathway, and the results of preclinical and clinical trials, using those agents in childhood hematologic cancers.
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Affiliation(s)
- David Barrett
- Department of Pediatrics, Division of Oncology, Children’s
Hospital of Philadelphia, University of Pennsylvania School of Medicine,
Philadelphia, PA, USA
| | - Valerie I. Brown
- Department of Pediatrics, Division of Oncology, Children’s
Hospital of Philadelphia, University of Pennsylvania School of Medicine,
Philadelphia, PA, USA
| | - Stephan A. Grupp
- Department of Pediatrics, Division of Oncology, Children’s
Hospital of Philadelphia, University of Pennsylvania School of Medicine,
Philadelphia, PA, USA
| | - David T. Teachey
- Department of Pediatrics, Division of Oncology, Children’s
Hospital of Philadelphia, University of Pennsylvania School of Medicine,
Philadelphia, PA, USA
- Department of Pediatrics, Division of Hematology, Children’s
Hospital of Philadelphia, University of Pennsylvania School of Medicine,
Philadelphia, PA, USA
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Liu L, Li W, Li Z, Kirschfink M. Sublytic complement protects prostate cancer cells from tumour necrosis factor-α-induced cell death. Clin Exp Immunol 2012; 169:100-8. [PMID: 22774984 DOI: 10.1111/j.1365-2249.2012.04596.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Inflammation is a critical component of tumour progression. Although complement and tumour necrosis factor (TNF)-α potentially exert significant anti-tumour effects, both mediators may also promote tumour progression. It has been demonstrated that sublytic complement confers resistance on tumour cells not only against lytic complement, but also other danger molecules such as perforin. In low concentrations, TNF promotes survival of malignant cells rather than exerting cytotoxic activity. In this study, we tested if sublytic complement is able to interfere with TNF-mediated tumour cell killing. Our results demonstrate that either subcytotoxic concentrations of TNF or sublytic complement rescue prostate carcinoma cells (DU145) from TNF-α-mediated cell death. Upon pretreatment with low-dose TNF-α, but not upon pre-exposure to sublytic complement, TNF resistance was associated with the down-regulation of TNF receptor 1 (TNF-R1) expression. Complement-induced protection against TNF-mediated apoptosis accompanied the induction of anti-apoptotic proteins [B cell leukaemia/lymphoma (Bcl)-2 and Bcl-xL] at an early stage followed by inhibition of the TNF-induced decrease in the amount of Bcl-2 and Bcl-xL. Cell protection also accompanied the inhibition of caspase-8 activation, poly (ADP-ribose) polymerase (PARP)-1 cleavage and the activation of nuclear factor (NF)-κB. Our data extend our current view on the induction of tumour cell resistance against cytotoxic mediators supporting the role of the tumour microenvironment in mediating protection against the anti-cancer immune response.
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Affiliation(s)
- L Liu
- Division of Nephrology, Department of Internal Medicine, Tongji Hospital, Wuhan, China
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McCool KW, Miyamoto S. DNA damage-dependent NF-κB activation: NEMO turns nuclear signaling inside out. Immunol Rev 2012; 246:311-26. [PMID: 22435563 DOI: 10.1111/j.1600-065x.2012.01101.x] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The dimeric transcription factor nuclear factor κB (NF-κB) functions broadly in coordinating cellular responses during inflammation and immune reactions, and its importance in the pathogenesis of cancer is increasingly recognized. Many of the signal transduction pathways that trigger activation of cytoplasmic NF-κB in response to a broad array of immune and inflammatory stimuli have been elaborated in great detail. NF-κB can also be activated by DNA damage, though relatively less is known about the signal transduction mechanisms that link DNA damage in the nucleus with activation of NF-κB in the cytoplasm. Here, we focus on the conserved signaling pathway that has emerged that promotes NF-κB activation following DNA damage. Post-translational modification of NF-κB essential modulator (NEMO) plays a central role in linking the cellular DNA damage response to NF-κB via the ataxia telangiectasia mutated (ATM) kinase. Accumulating evidence suggests that DNA damage-dependent NF-κB activation may play significant biological roles, particularly during lymphocyte differentiation and progression of human malignancies.
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Affiliation(s)
- Kevin W McCool
- Medical Scientist Training Program, University of Wisconsin-Madison, Madison, WI 53705, USA
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Signaling pathways in chronic myeloid leukemia and leukemic stem cell maintenance: key role of stromal microenvironment. Cell Signal 2012; 24:1883-8. [PMID: 22659137 DOI: 10.1016/j.cellsig.2012.05.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 05/15/2012] [Accepted: 05/24/2012] [Indexed: 12/11/2022]
Abstract
Chronic myeloid leukemia (CML) is caused by the malignant transformation of hematopoietic stem cells in leukemic stem cells. From the introduction of the anti-cancer drug imatinib, the therapy of CML has been positively transformed. However, following treatment most patients display a residual CML disease attributed to the presence of quiescent leukemic stem cells intrinsically resistant to imatinib. Considering that the later cancer cells lose their chemoresistance in vitro, it appears that the stromal microenvironment plays a crucial role in CML-affected cell chemoresistance. In the present review, we summarize and discuss the recent findings on signaling pathways through which stromal cells sustain CML leukemogenesis, as well as leukemic stem cell maintenance and chemoresistance.
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Montano-Almendras CP, Essaghir A, Schoemans H, Varis I, Noël LA, Velghe AI, Latinne D, Knoops L, Demoulin JB. ETV6-PDGFRB and FIP1L1-PDGFRA stimulate human hematopoietic progenitor cell proliferation and differentiation into eosinophils: the role of nuclear factor-κB. Haematologica 2012; 97:1064-72. [PMID: 22271894 DOI: 10.3324/haematol.2011.047530] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND ETV6-PDGFRB (also called TEL-PDGFRB) and FIP1L1-PDGFRA are receptor-tyrosine kinase fusion genes that cause chronic myeloid malignancies associated with hypereosinophilia. The aim of this work was to gain insight into the mechanisms whereby fusion genes affect human hematopoietic cells and in particular the eosinophil lineage. DESIGN AND METHODS We introduced ETV6-PDGFRB and FIP1L1-PDGFRA into human CD34(+) hematopoietic progenitor and stem cells isolated from umbilical cord blood. RESULTS Cells transduced with these oncogenes formed hematopoietic colonies even in the absence of cytokines. Both oncogenes also stimulated the proliferation of cells in liquid culture and their differentiation into eosinophils. This model thus recapitulated key features of the myeloid neoplasms induced by ETV6-PDGFRB and FIP1L1-PDGFRA. We next showed that both fusion genes activated the transcription factors STAT1, STAT3, STAT5 and nuclear factor-κB. Phosphatidylinositol-3 kinase inhibition blocked nuclear factor-κB activation in transduced progenitor cells and patients' cells. Nuclear factor-κB was also activated in the human FIP1L1-PDGFRA-positive leukemia cell line EOL1, the proliferation of which was blocked by bortezomib and the IκB kinase inhibitor BMS-345541. A mutant IκB that prevents nuclear translocation of nuclear factor-κB inhibited cell growth and the expression of eosinophil markers, such as the interleukin-5 receptor and eosinophil peroxidase, in progenitors transduced with ETV6-PDGFRB. In addition, several potential regulators of this process, including HES6, MYC and FOXO3 were identified using expression microarrays. CONCLUSIONS We show that human CD34(+) cells expressing PDGFR fusion oncogenes proliferate autonomously and differentiate towards the eosinophil lineage in a process that requires nuclear factor-κB. These results suggest new treatment possibilities for imatinib-resistant myeloid neoplasms associated with PDGFR mutations.
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Human lysosomal α-D-mannosidase regulation in promyelocytic leukaemia cells. Biosci Rep 2012; 31:477-87. [PMID: 21521175 DOI: 10.1042/bsr20110020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Lysosomal α-D-mannosidase is an exoglycosidase involved in the ordered degradation of N-linked oligosaccharides. It is ubiquitously expressed, although the main transcript is more abundant in peripheral blood leucocytes. Here we report that α-D-mannosidase enzyme activity is very high in the promyelocytic leukaemia cell lines HL60 and NB4, as compared with other leukaemic cell lines or cells from different human sources. The MAN2B1 transcript level correlates with enzyme activity, indicating a transcriptional up-regulation of the α-D-mannosidase gene. The promoter was then characterized in HEK-293 cells (human embryonic kidney 293 cells) and HL60 cells; regulatory sequences crucial for its activity were determined by reporter gene assay in HEK-293 cells and located in the region -101/-71 with respect to the first ATG codon. Supershift assay demonstrated that Sp1 (specificity protein 1) bound to this sequence both in HEK-293 and HL60 cells. However, 5'-RACE (5'-rapid amplification of cDNA ends) indicated the use of multiple upstream TSSs (transcription start sites) in HL60 with respect to HEK-293 cells and gel shift analysis of the sequence -373/-269 demonstrated a specific binding by NF-κB (nuclear factor κB) transcription factor in HL60 but not in HEK-293 cells. We concluded that despite the α-D-mannosidase promoter showing typical features of housekeeping gene promoters, α-D-mannosidase transcription is specifically regulated in HL60 by NF-κB transcription factor.
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Reuter S, Gupta SC, Kannappan R, Aggarwal BB. WITHDRAWN: Evidence for the critical roles of NF-κB p65 and specificity proteins in the apoptosis-inducing activity of proteasome inhibitors in leukemia cells. BIOCHIMICA ET BIOPHYSICA ACTA 2012:S0925-4439(12)00013-0. [PMID: 22265847 PMCID: PMC3870997 DOI: 10.1016/j.bbadis.2012.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2011] [Revised: 12/30/2011] [Accepted: 01/04/2012] [Indexed: 10/14/2022]
Abstract
This article has been withdrawn at the request of editor. The Publisher apologizes for any inconvenience this may cause. The full Elsevier Policy on Article Withdrawal can be found at http://www.elsevier.com/locate/withdrawalpolicy.
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Klimek VM, Dolezal EK, Smith L, Soff G, Nimer SD. Phase I trial of sodium salicylate in patients with myelodysplastic syndromes and acute myelogenous leukemia. Leuk Res 2011; 36:570-4. [PMID: 22154022 DOI: 10.1016/j.leukres.2011.10.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/18/2011] [Accepted: 10/25/2011] [Indexed: 12/20/2022]
Abstract
Sodium salicylate is an inexpensive, readily available anti-inflammatory agent which inhibits NF-κB in in vitro models. We examined whether it was possible to safely achieve and maintain salicylate levels known to inhibit NF-κB in vitro in 11 patients with MDS or AML taking sodium salicylate. Most patients achieved the target blood salicylate level (20-30mg/dL) with acceptable toxicity, including reversible grade 1/2 elevations of hepatic transaminases (n=4) and ototoxicity (n=4). One patient had grade 3/4 elevations in AST/ALT. This study suggests that sodium salicylate may be safely combined with conventional chemotherapy regimens which are not associated with significant ototoxicity or hepatotoxicity.
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Affiliation(s)
- Virginia M Klimek
- Department of Medicine, Leukemia Service, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, NY 10065, USA.
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van der Weide K, de Jonge-Peeters S, Huls G, Fehrmann RSN, Schuringa JJ, Kuipers F, de Vries EGE, Vellenga E. Treatment with high-dose simvastatin inhibits geranylgeranylation in AML blast cells in a subset of AML patients. Exp Hematol 2011; 40:177-186.e6. [PMID: 22120639 DOI: 10.1016/j.exphem.2011.11.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 10/26/2011] [Accepted: 11/22/2011] [Indexed: 01/09/2023]
Abstract
It is currently unknown whether the in vitro effects observed with statins in acute myeloid leukemia (AML) cells, including lowering of cholesterol, inhibition of isoprenylation, and sensitization to chemotherapy, also occur in vivo. Therefore, AML mononuclear cells (MNCs) were isolated from 12 patients before and after 7 days of high-dose (7.5-15 mg/kg/day) simvastatin treatment. Parallel mouse studies were performed to have, in addition to AML cells, access to liver tissue, a major target of statins. Serum cholesterol levels were lowered by simvastatin in all patients, however, only limited changes in the messenger RNA expression of cholesterol metabolism genes were seen in patient and mouse MNCs compared to murine liver cells. Still, two out of seven patients displayed an increased in vitro chemosensitivity of their AML cells upon simvastatin treatment. Gene set enrichment analysis on microarray data of AML patient cells and Western blot analysis for the isoprenylated proteins DnaJ and Rap1 on murine and AML patient MNCs demonstrated that in vivo simvastatin treatment resulted in inhibition of geranylgeranylation in murine MNCs and in a subset of patient AML MNCs. In summary, our data demonstrate that simvastatin treatment results in chemosensitization and inhibition of geranylgeranylation in AML cells of a subset of patients.
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Affiliation(s)
- Karen van der Weide
- Department of Hematology, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Heterogeneity in simvastatin-induced cytotoxicity in AML is caused by differences in Ras-isoprenylation. Leukemia 2011; 26:845-8. [DOI: 10.1038/leu.2011.259] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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