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Rejeski K, Duque-Afonso J, Lübbert M. AML1/ETO and its function as a regulator of gene transcription via epigenetic mechanisms. Oncogene 2021; 40:5665-5676. [PMID: 34331016 PMCID: PMC8460439 DOI: 10.1038/s41388-021-01952-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/11/2021] [Accepted: 07/07/2021] [Indexed: 01/10/2023]
Abstract
The chromosomal translocation t(8;21) and the resulting oncofusion gene AML1/ETO have long served as a prototypical genetic lesion to model and understand leukemogenesis. In this review, we describe the wide-ranging role of AML1/ETO in AML leukemogenesis, with a particular focus on the aberrant epigenetic regulation of gene transcription driven by this AML-defining mutation. We begin by analyzing how structural changes secondary to distinct genomic breakpoints and splice changes, as well as posttranscriptional modifications, influence AML1/ETO protein function. Next, we characterize how AML1/ETO recruits chromatin-modifying enzymes to target genes and how the oncofusion protein alters chromatin marks, transcription factor binding, and gene expression. We explore the specific impact of these global changes in the epigenetic network facilitated by the AML1/ETO oncofusion on cellular processes and leukemic growth. Furthermore, we define the genetic landscape of AML1/ETO-positive AML, presenting the current literature concerning the incidence of cooperating mutations in genes such as KIT, FLT3, and NRAS. Finally, we outline how alterations in transcriptional regulation patterns create potential vulnerabilities that may be exploited by epigenetically active agents and other therapeutics.
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Affiliation(s)
- Kai Rejeski
- Department of Hematology, Oncology and Stem Cell Transplantation, University of Freiburg Medical Center, Freiburg, Germany.,Department of Hematology and Oncology, University Hospital of the LMU Munich, Munich, Germany.,German Cancer Consortium (DKTK) Freiburg Partner Site, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jesús Duque-Afonso
- Department of Hematology, Oncology and Stem Cell Transplantation, University of Freiburg Medical Center, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Michael Lübbert
- Department of Hematology, Oncology and Stem Cell Transplantation, University of Freiburg Medical Center, Freiburg, Germany. .,German Cancer Consortium (DKTK) Freiburg Partner Site, German Cancer Research Center (DKFZ), Heidelberg, Germany. .,Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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2
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Lei KF, Chen QE, Goh A, Pai PC. Analysis of a Cancer Stem Cell-Derived Single Colony Raised in a Microwell Array. ACS APPLIED BIO MATERIALS 2021; 4:5099-5105. [DOI: 10.1021/acsabm.1c00209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kin Fong Lei
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 333, Taiwan
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
| | - Qing-En Chen
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 333, Taiwan
| | - Andrew Goh
- Graduate Institute of Biomedical Engineering, Chang Gung University, Taoyuan 333, Taiwan
| | - Ping Ching Pai
- Department of Radiation Oncology, Chang Gung Memorial Hospital, Linkou, Taoyuan 333, Taiwan
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3
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NTAL is associated with treatment outcome, cell proliferation and differentiation in acute promyelocytic leukemia. Sci Rep 2020; 10:10315. [PMID: 32587277 PMCID: PMC7316767 DOI: 10.1038/s41598-020-66223-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 05/15/2020] [Indexed: 01/04/2023] Open
Abstract
Non-T cell activation linker (NTAL) is a lipid raft-membrane protein expressed by normal and leukemic cells and involved in cell signaling. In acute promyelocytic leukemia (APL), NTAL depletion from lipid rafts decreases cell viability through regulation of the Akt/PI3K pathway. The role of NTAL in APL cell processes, and its association with clinical outcome, has not, however, been established. Here, we show that reduced levels of NTAL were associated with increased all-trans retinoic acid (ATRA)-induced differentiation, generation of reactive oxygen species, and mitochondrial dysfunction. Additionally, NTAL-knockdown (NTAL-KD) in APL cell lines led to activation of Ras, inhibition of Akt/mTOR pathways, and increased expression of autophagy markers, leading to an increased apoptosis rate following arsenic trioxide treatment. Furthermore, NTAL-KD in NB4 cells decreased the tumor burden in (NOD scid gamma) NSG mice, suggesting its implication in tumor growth. A retrospective analysis of NTAL expression in a cohort of patients treated with ATRA and anthracyclines, revealed that NTAL overexpression was associated with a high leukocyte count (P = 0.007) and was independently associated with shorter overall survival (Hazard Ratio: 3.6; 95% Confidence Interval: 1.17-11.28; P = 0.026). Taken together, our data highlights the importance of NTAL in APL cell survival and response to treatment.
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Zou L, Li H, Han X, Qin J, Song G. Runx1t1 promotes the neuronal differentiation in rat hippocampus. Stem Cell Res Ther 2020; 11:160. [PMID: 32321587 PMCID: PMC7178948 DOI: 10.1186/s13287-020-01667-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2020] [Revised: 03/20/2020] [Accepted: 03/31/2020] [Indexed: 12/17/2022] Open
Abstract
Background Runt-related transcription factor 1 translocated to 1 (Runx1t1) is one of the members of the myeloid translocation gene family. Our previous work showed that Runx1t1 induced the neuronal differentiation of radial glia cells in vitro. Methods To better uncover the role of Runx1t1 in hippocampal neurogenesis, in this study, we further explore its localization and function during the hippocampal neurogenesis. Results Our results showed that insufficient expression of Runx1t1 reduced the neuronal differentiation, and overexpression of Runx1t1 promoted the neuronal differentiation in vitro. We also found that Runx1t1 localized in neurons but not astrocytes both in vivo and in vitro. Furthermore, we found that Runx1t1 overexpression elevated the number of newborn neurons in the hippocampal dentate gyrus. Conclusions Taken together, our results further proved that Runx1t1 could be worked as a regulator in the process of hippocampal neurogenesis.
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Affiliation(s)
- Linqing Zou
- Department of Human Anatomy, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.,Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA
| | - Haoming Li
- Department of Human Anatomy, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China.,Department of Neurochemistry, Inge Grundke-Iqbal Research Floor, New York State Institute for Basic Research in Developmental Disabilities, Staten Island, NY, USA
| | - Xiao Han
- Department of Human Anatomy, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Jianbing Qin
- Department of Human Anatomy, Jiangsu Key Laboratory of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu, China
| | - Guoqi Song
- Department of Hematology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China. .,Department of Medical Oncology, Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, 19107, USA.
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5
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Tsai MT, Huang BH, Lei KF. Quantitative Monitoring of the Response of Tumor Spheroids Cultured in 3D Environment by Optical Coherence Tomography. IEEE ACCESS 2020; 8:28360-28366. [DOI: 10.1109/access.2020.2972620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/30/2023]
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6
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Ferreira GA, Thomé CH, Simão AMS, Scheucher PS, Silva CLA, Chahud F, Ciancaglini P, Leopoldino AM, Rego EM, Faça VM, dos Santos GA. The lipid raft protein NTAL participates in AKT signaling in mantle cell lymphoma. Leuk Lymphoma 2019; 60:2658-2668. [DOI: 10.1080/10428194.2019.1607326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Germano Aguiar Ferreira
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Carolina Hassibe Thomé
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Ana Maria Sper Simão
- Department of Chemistry, Faculty of Philosophy Sciences and Letters of Ribeirão Preto - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Priscila Santos Scheucher
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Internal Medicine, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | | | - Fernando Chahud
- Department of Pathology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Pietro Ciancaglini
- Department of Chemistry, Faculty of Philosophy Sciences and Letters of Ribeirão Preto - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Andreia Machado Leopoldino
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Clinical, Toxicological and Bromatological Analyzes, Faculty of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Eduardo Magalhães Rego
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Internal Medicine, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Vitor Marcel Faça
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Biochemistry and Immunology, Ribeirão Preto Medical School - University of São Paulo, Ribeirão Preto, SP, Brazil
| | - Guilherme Augusto dos Santos
- Hemocenter of Ribeirão Preto, 14051-140 Ribeirão Preto, SP, Brazil
- Department of Medicine, University of Ribeirão Preto (UNAERP), Ribeirão Preto, SP, Brazil
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7
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Assi SA, Imperato MR, Coleman DJL, Pickin A, Potluri S, Ptasinska A, Chin PS, Blair H, Cauchy P, James SR, Zacarias-Cabeza J, Gilding LN, Beggs A, Clokie S, Loke JC, Jenkin P, Uddin A, Delwel R, Richards SJ, Raghavan M, Griffiths MJ, Heidenreich O, Cockerill PN, Bonifer C. Subtype-specific regulatory network rewiring in acute myeloid leukemia. Nat Genet 2019; 51:151-162. [PMID: 30420649 PMCID: PMC6330064 DOI: 10.1038/s41588-018-0270-1] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2018] [Accepted: 10/02/2018] [Indexed: 12/30/2022]
Abstract
Acute myeloid leukemia (AML) is a heterogeneous disease caused by a variety of alterations in transcription factors, epigenetic regulators and signaling molecules. To determine how different mutant regulators establish AML subtype-specific transcriptional networks, we performed a comprehensive global analysis of cis-regulatory element activity and interaction, transcription factor occupancy and gene expression patterns in purified leukemic blast cells. Here, we focused on specific subgroups of subjects carrying mutations in genes encoding transcription factors (RUNX1, CEBPα), signaling molecules (FTL3-ITD, RAS) and the nuclear protein NPM1). Integrated analysis of these data demonstrates that each mutant regulator establishes a specific transcriptional and signaling network unrelated to that seen in normal cells, sustaining the expression of unique sets of genes required for AML growth and maintenance.
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Affiliation(s)
- Salam A Assi
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | | | - Daniel J L Coleman
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Anna Pickin
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Sandeep Potluri
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Anetta Ptasinska
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Paulynn Suyin Chin
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Helen Blair
- Northern Institute for Cancer Research, University of Newcastle, Newcastle, UK
| | - Pierre Cauchy
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Sally R James
- Section of Experimental Haematology, Leeds Institute for Molecular Medicine, University of Leeds, Leeds, UK
| | | | - L Niall Gilding
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Andrew Beggs
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Sam Clokie
- West Midlands Regional Genetics Laboratory, Birmingham Women's NHS Foundation Trust, Birmingham, UK
| | - Justin C Loke
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Phil Jenkin
- CMT Laboratory NHS Blood & Transplant, Edgbaston, Birmingham, UK
| | - Ash Uddin
- CMT Laboratory NHS Blood & Transplant, Edgbaston, Birmingham, UK
| | - Ruud Delwel
- Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands
- Oncode Institute, Erasmus MC, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Stephen J Richards
- Haematological Malignancy Diagnostic Service, St. James's University Hospital, Leeds, UK
| | - Manoj Raghavan
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
- Centre for Clinical Haematology, Queen Elizabeth Hospital, Birmingham, UK
| | - Michael J Griffiths
- West Midlands Regional Genetics Laboratory, Birmingham Women's NHS Foundation Trust, Birmingham, UK
| | - Olaf Heidenreich
- Northern Institute for Cancer Research, University of Newcastle, Newcastle, UK
- Princess Maxima Centrum for Pediatric Oncology, Utrecht, The Netherlands
| | - Peter N Cockerill
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK.
| | - Constanze Bonifer
- Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK.
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Lei KF, Kao CH, Tsang NM. High throughput and automatic colony formation assay based on impedance measurement technique. Anal Bioanal Chem 2017; 409:3271-3277. [DOI: 10.1007/s00216-017-0270-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 02/13/2017] [Accepted: 02/20/2017] [Indexed: 12/27/2022]
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Lei KF, Lin BY, Tsang NM. Real-time and label-free impedimetric analysis of the formation and drug testing of tumor spheroids formed via the liquid overlay technique. RSC Adv 2017. [DOI: 10.1039/c7ra00209b] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Tumor spheroids formed via the liquid overlay technique were quantitatively monitored by impedance measurement across the interdigitated electrodes.
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Affiliation(s)
- Kin Fong Lei
- Graduate Institute of Medical Mechatronics
- Chang Gung University
- Taoyuan
- Taiwan
- Department of Mechanical Engineering
| | - Bo-Yuan Lin
- Graduate Institute of Medical Mechatronics
- Chang Gung University
- Taoyuan
- Taiwan
| | - Ngan-Ming Tsang
- Department of Radiation Oncology
- Chang Gung Memorial Hospital
- Taiwan
- School of Traditional Chinese Medicine
- Chang Gung University
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Impedimetric quantification of the formation process and the chemosensitivity of cancer cell colonies suspended in 3D environment. Biosens Bioelectron 2015; 74:878-85. [PMID: 26241736 DOI: 10.1016/j.bios.2015.07.060] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 07/21/2015] [Accepted: 07/25/2015] [Indexed: 01/27/2023]
Abstract
In cancer research, colony formation assay is a gold standard for the investigation of the development of early tumors and the effects of cytotoxic agents on tumors in vitro. Quantification of cancer cell colonies suspended in hydrogel is currently achieved by manual counting under microscope. It is challenging to microscopically quantify the colony number and size without subjective bias. In this work, impedimetric quantification of cancer cell colonies suspended in hydrogel was successfully developed and provides a quantitative and objective method to describe the colony formation process and the development of colony size during the culture course. A biosensor embedded with a pair of parallel plate electrodes was fabricated for the impedimetric quantification. Cancer cell (cell line: Huh-7) were encapsulated in methyl cellulose hydrogel and cultured to gradually form cancer cell colonies suspended in 3D environment. At pre-set schedule during the culture course, small volume (50 μL) of colonies/MC hydrogel was collected, mixed with measurement hydrogel, and loaded to the biosensor for measurement. Hence, the colony formation process could be quantitatively represented by a colony index and a colony size index calculated from electrical impedance. Based on these developments, chemosensitivity of cancer cell colonies under different concentrations of anti-cancer drug, i.e., doxorubicin, was quantitatively investigated to study the efficacy of anti-cancer drug. Also, dose-response curve was constructed to calculate the IC50 value, which is an important indicator for chemosensitivity assay. These results showed the impedimetric quantification is a promising technique for the colony formation assay.
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