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Larrue C, Mouche S, Angelino P, Sajot M, Birsen R, Kosmider O, Mckee T, Vergez F, Recher C, Mas VMD, Gu Q, Xu J, Tsantoulis P, Sarry JE, Tamburini J. Targeting ferritinophagy impairs quiescent cancer stem cells in acute myeloid leukemia in vitro and in vivo models. Sci Transl Med 2024; 16:eadk1731. [PMID: 39047119 DOI: 10.1126/scitranslmed.adk1731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 03/18/2024] [Accepted: 07/02/2024] [Indexed: 07/27/2024]
Abstract
Acute myeloid leukemia (AML) remains a challenging hematological malignancy with poor prognosis and limited treatment options. Leukemic stem cells (LSCs) contribute to therapeutic failure, relapse, and adverse outcome. This study investigates the role of quiescence and related molecular mechanisms in AML pathogenesis and LSC functions to identify potential therapeutic targets. Transcriptomic analysis revealed that the LSC-enriched quiescent cell population has a distinct gene signature with prognostic relevance in patients with AML. Mechanistically, quiescent blasts exhibit increased autophagic activity, which contributes to their sustained viability. Proteomic profiling uncovered differential requirements for iron metabolism between quiescent and cycling cells, revealing a unique dependence of quiescent cells on ferritinophagy, a selective form of autophagy mediated by nuclear receptor coactivator 4 (NCOA4), which regulates iron bioavailability. We evaluated the therapeutic potential of inhibiting NCOA4-mediated ferritinophagy using genetic knockdown and chemical inhibition approaches. In vitro assays showed that suppression of NCOA4 was toxic to leukemic blasts, particularly the CD34+CD38- LSC-enriched population, without affecting normal CD34+ hematopoietic progenitors. In vivo studies using murine patient-derived xenograft (PDX) models of AML confirmed that NCOA4 inhibition reduced tumor burden and impaired LSC viability and self-renewal, indicating a specific vulnerability of these cells to ferritinophagy disruption. Our findings underscore the role of NCOA4-mediated ferritinophagy in maintaining LSC quiescence and function and suggest that targeting this pathway may be an effective therapeutic strategy for AML. This study highlights the potential of NCOA4 inhibition to improve AML outcomes and paves the way for future research and clinical development.
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Affiliation(s)
- Clement Larrue
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
- Centre de Recherches en Cancérologie de Toulouse, Université de Toulouse, Inserm U1037, CNRS U5077, 31100 Toulouse, France
- LabEx Toucan, 31100 Toulouse, France
- Équipe labellisée Ligue Nationale Contre le Cancer 2023, 31100 Toulouse, France
| | - Sarah Mouche
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
| | - Paolo Angelino
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
- Translational Data Science, SIB Swiss Institute of Bioinformatics, 1015 Lausanne, Switzerland
| | - Maxime Sajot
- Centre de Recherches en Cancérologie de Toulouse, Université de Toulouse, Inserm U1037, CNRS U5077, 31100 Toulouse, France
- LabEx Toucan, 31100 Toulouse, France
- Équipe labellisée Ligue Nationale Contre le Cancer 2023, 31100 Toulouse, France
| | - Rudy Birsen
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
- Université de Paris, Institut Cochin, CNRS U8104, Inserm U1016, 75014 Paris, France
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, 75014 Paris, France
| | - Olivier Kosmider
- Université de Paris, Institut Cochin, CNRS U8104, Inserm U1016, 75014 Paris, France
- Assistance Publique-Hôpitaux de Paris, Hôpitaux Universitaires Paris Centre, 75014 Paris, France
| | - Thomas Mckee
- Division of Clinical Pathology, Diagnostic Department, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - François Vergez
- Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer de Toulouse Oncopole, Service d'Hématologie, 31100 Toulouse, France
| | - Christian Recher
- Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer de Toulouse Oncopole, Service d'Hématologie, 31100 Toulouse, France
| | - Véronique Mansat-De Mas
- Centre Hospitalier Universitaire de Toulouse, Institut Universitaire du Cancer de Toulouse Oncopole, Service d'Hématologie, 31100 Toulouse, France
| | - Qiong Gu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Jun Xu
- Research Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, China
| | - Petros Tsantoulis
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
| | - Jean-Emmanuel Sarry
- Centre de Recherches en Cancérologie de Toulouse, Université de Toulouse, Inserm U1037, CNRS U5077, 31100 Toulouse, France
- LabEx Toucan, 31100 Toulouse, France
- Équipe labellisée Ligue Nationale Contre le Cancer 2023, 31100 Toulouse, France
| | - Jerome Tamburini
- Centre for Translational Research in Onco-Hematology, Faculty of Medicine, University of Geneva, and Swiss Cancer Centre Leman, 1206 Geneva, Switzerland
- Université de Paris, Institut Cochin, CNRS U8104, Inserm U1016, 75014 Paris, France
- Oncology Department, Geneva University Hospitals, 1205 Geneva, Switzerland
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Zhang S, Zhong M, Zhu H, You Q, Yuan H, Li Y. Hypomethylation of DRD2 promotes breast cancer through the FLNA-ERK pathway. Cancer Genet 2023; 278-279:71-78. [PMID: 37729778 DOI: 10.1016/j.cancergen.2023.09.001] [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: 04/19/2023] [Revised: 07/15/2023] [Accepted: 09/05/2023] [Indexed: 09/22/2023]
Abstract
We investigated the effect of stem cell marker dopamine receptor D2 (DRD2) on the proliferation of hormone-receptor-negative breast cancer cells. High-throughput DNA methylation sequencing on an 850 K chip was used to pre-screen breast cancer tissues with significant methylation differences. The expression of DRD2 in breast cancer and normal breast tissues, and clinical risk factors, were detected by pyrophosphoric acid validation and immunohistochemistry. In vitro and in vivo experiments verified the possible molecular signaling pathways. DRD2 promoter region was hypomethylated in hormone-receptor-negative breast cancer or with high-risk factors compared to the normal tissues. The proliferation of breast cancer cells was enhanced after DRD2 was upregulated and decreased after DRD2 was downregulated. In vivo experiments found that tumor growth and the expression of antigen KI-67 (Ki67) and the cluster of differentiation 31 (CD31) were improved by the overexpression of DRD2 and inhibited by the down expression of DRD2. In vivo and in vitro experiments demonstrated the phosphorylation of filamin A and extracellular signal-regulated kinase (FLNA-ERK) was influenced by the expression of DRD2, suggesting DRD2 plays a role in the FLNA-ERK signaling pathway. Methylation inhibitors (5-aza-2-deoxycytidine, 5-azadc) partially reversed the inhibitory effect of DRD2 down expression on cell proliferation, migration, and tumor growth in animal models, indicating that inhibition of DRD2 methylation promotes cancer development. This study demonstrated the DRD2 promoter region is hypomethylated in hormone-receptor-negative breast cancer or with high-risk factors. The methylation status of the DRD2 promoter and FLNA-ERK signaling pathway and the DRD2 expression in breast cancer treatment need to be considered.
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Affiliation(s)
- Shuoyi Zhang
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China
| | - Ming Zhong
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China
| | - Hongbo Zhu
- Department of Pathology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China
| | - Qinghua You
- Department of Pathology, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China
| | - Hao Yuan
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China
| | - Yongping Li
- Department of Breast Surgery, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, China.
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3
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Liang G, Wang L, You Q, Cahill K, Chen C, Zhang W, Fulton N, Stock W, Odenike O, He C, Han D. Cellular Composition and 5hmC Signature Predict the Treatment Response of AML Patients to Azacitidine Combined with Chemotherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2300445. [PMID: 37271891 PMCID: PMC10427370 DOI: 10.1002/advs.202300445] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 05/12/2023] [Indexed: 06/06/2023]
Abstract
Azacitidine (AZA) is a DNA methyltransferase inhibitor and epigenetic modulator that can be an effective agent in combination with chemotherapy for patients with high-risk acute myeloid leukemia (AML). However, biological factors driving the therapeutic response of such hypomethylating agent (HMA)-based therapies remain unknown. Herein, the transcriptome and/or genome-wide 5-hydroxymethylcytosine (5hmC) is characterized for 41 patients with high-risk AML from a phase 1 clinical trial treated with AZA epigenetic priming followed by high-dose cytarabine and mitoxantrone (AZA-HiDAC-Mito). Digital cytometry reveals that responders have elevated Granulocyte-macrophage-progenitor-like (GMP-like) malignant cells displaying an active cell cycle program. Moreover, the enrichment of natural killer (NK) cells predicts a favorable outcome in patients receiving AZA-HiDAC-Mito therapy or other AZA-based therapies. Comparing 5hmC profiles before and after five-day treatment of AZA shows that AZA exposure induces dose-dependent 5hmC changes, in which the magnitude correlates with overall survival (p = 0.015). An extreme gradient boosting (XGBoost) machine learning model is developed to predict the treatment response based on 5hmC levels of 11 genes, achieving an area under the curve (AUC) of 0.860. These results suggest that cellular composition markedly impacts the treatment response, and showcase the prospect of 5hmC signatures in predicting the outcomes of HMA-based therapies in AML.
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Affiliation(s)
- Guanghao Liang
- Key Laboratory of Genomic and Precision MedicineBeijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing100101China
- College of Future TechnologySino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijing100049China
| | - Linchen Wang
- Key Laboratory of Genomic and Precision MedicineBeijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing100101China
- College of Future TechnologySino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijing100049China
| | - Qiancheng You
- Department of Chemistry and Institute for Biophysical DynamicsThe University of ChicagoChicagoIL60637USA
- Howard Hughes Medical InstituteChicagoIL60637USA
| | - Kirk Cahill
- Section of Hematology/OncologyDepartment of MedicineUniversity of Chicago MedicineChicagoIL60637USA
| | - Chuanyuan Chen
- Key Laboratory of Genomic and Precision MedicineBeijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing100101China
- College of Future TechnologySino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijing100049China
| | - Wei Zhang
- Department of MedicineUniversity of California, San DiegoLa JollaCA92093USA
- Bristol‐Myers SquibbSan DiegoCA92121USA
| | - Noreen Fulton
- Section of Hematology/OncologyDepartment of MedicineUniversity of Chicago MedicineChicagoIL60637USA
- Comprehensive Cancer CenterUniversity of Chicago MedicineChicagoIL60637USA
| | - Wendy Stock
- Section of Hematology/OncologyDepartment of MedicineUniversity of Chicago MedicineChicagoIL60637USA
- Comprehensive Cancer CenterUniversity of Chicago MedicineChicagoIL60637USA
| | - Olatoyosi Odenike
- Section of Hematology/OncologyDepartment of MedicineUniversity of Chicago MedicineChicagoIL60637USA
- Comprehensive Cancer CenterUniversity of Chicago MedicineChicagoIL60637USA
| | - Chuan He
- Department of Chemistry and Institute for Biophysical DynamicsThe University of ChicagoChicagoIL60637USA
- Howard Hughes Medical InstituteChicagoIL60637USA
- Department of Biochemistry and Molecular BiologyThe University of ChicagoChicagoIL60637USA
| | - Dali Han
- Key Laboratory of Genomic and Precision MedicineBeijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing100101China
- College of Future TechnologySino‐Danish CollegeUniversity of Chinese Academy of SciencesBeijing100049China
- Institute for Stem Cell and RegenerationChinese Academy of SciencesBeijing100101China
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Park MN. The Therapeutic Potential of a Strategy to Prevent Acute Myeloid Leukemia Stem Cell Reprogramming in Older Patients. Int J Mol Sci 2023; 24:12037. [PMID: 37569414 PMCID: PMC10418941 DOI: 10.3390/ijms241512037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 07/22/2023] [Accepted: 07/25/2023] [Indexed: 08/13/2023] Open
Abstract
Acute myeloid leukemia (AML) is the most common and incurable leukemia subtype. Despite extensive research into the disease's intricate molecular mechanisms, effective treatments or expanded diagnostic or prognostic markers for AML have not yet been identified. The morphological, immunophenotypic, cytogenetic, biomolecular, and clinical characteristics of AML patients are extensive and complex. Leukemia stem cells (LSCs) consist of hematopoietic stem cells (HSCs) and cancer cells transformed by a complex, finely-tuned interaction that causes the complexity of AML. Microenvironmental regulation of LSCs dormancy and the diagnostic and therapeutic implications for identifying and targeting LSCs due to their significance in the pathogenesis of AML are discussed in this review. It is essential to perceive the relationship between the niche for LSCs and HSCs, which together cause the progression of AML. Notably, methylation is a well-known epigenetic change that is significant in AML, and our data also reveal that microRNAs are a unique factor for LSCs. Multiple-targeted approaches to reduce the risk of epigenetic factors, such as the administration of natural compounds for the elimination of local LSCs, may prevent potentially fatal relapses. Furthermore, the survival analysis of overlapping genes revealed that specific targets had significant effects on the survival and prognosis of patients. We predict that the multiple-targeted effects of herbal products on epigenetic modification are governed by different mechanisms in AML and could prevent potentially fatal relapses. Thus, these strategies can facilitate the incorporation of herbal medicine and natural compounds into the advanced drug discovery and development processes achievable with Network Pharmacology research.
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Affiliation(s)
- Moon Nyeo Park
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Hoegidong Dongdaemungu, Seoul 05253, Republic of Korea
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5
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Vujovic A, de Rooij L, Chahi AK, Chen HT, Yee BA, Loganathan SK, Liu L, Chan DC, Tajik A, Tsao E, Moreira S, Joshi P, Xu J, Wong N, Balde Z, Jahangiri S, Zandi S, Aigner S, Dick JE, Minden MD, Schramek D, Yeo GW, Hope KJ. In Vivo Screening Unveils Pervasive RNA-Binding Protein Dependencies in Leukemic Stem Cells and Identifies ELAVL1 as a Therapeutic Target. Blood Cancer Discov 2023; 4:180-207. [PMID: 36763002 PMCID: PMC10150294 DOI: 10.1158/2643-3230.bcd-22-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 11/30/2022] [Accepted: 02/06/2023] [Indexed: 02/11/2023] Open
Abstract
Acute myeloid leukemia (AML) is fueled by leukemic stem cells (LSC) whose determinants are challenging to discern from hematopoietic stem cells (HSC) or uncover by approaches focused on general cell properties. We have identified a set of RNA-binding proteins (RBP) selectively enriched in human AML LSCs. Using an in vivo two-step CRISPR-Cas9 screen to assay stem cell functionality, we found 32 RBPs essential for LSCs in MLL-AF9;NrasG12D AML. Loss-of-function approaches targeting key hit RBP ELAVL1 compromised LSC-driven in vivo leukemic reconstitution, and selectively depleted primitive malignant versus healthy cells. Integrative multiomics revealed differentiation, splicing, and mitochondrial metabolism as key features defining the leukemic ELAVL1-mRNA interactome with mitochondrial import protein, TOMM34, being a direct ELAVL1-stabilized target whose repression impairs AML propagation. Altogether, using a stem cell-adapted in vivo CRISPR screen, this work demonstrates pervasive reliance on RBPs as regulators of LSCs and highlights their potential as therapeutic targets in AML. SIGNIFICANCE LSC-targeted therapies remain a significant unmet need in AML. We developed a stem-cell-adapted in vivo CRISPR screen to identify key LSC drivers. We uncover widespread RNA-binding protein dependencies in LSCs, including ELAVL1, which we identify as a novel therapeutic vulnerability through its regulation of mitochondrial metabolism. This article is highlighted in the In This Issue feature, p. 171.
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Affiliation(s)
- Ana Vujovic
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Laura de Rooij
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Ava Keyvani Chahi
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - He Tian Chen
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Brian A. Yee
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Sampath K. Loganathan
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
| | - Lina Liu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Derek C.H. Chan
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Amanda Tajik
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Emily Tsao
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Steven Moreira
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Pratik Joshi
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Joshua Xu
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
| | - Nicholas Wong
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Zaldy Balde
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Soheil Jahangiri
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
| | - Sasan Zandi
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Stefan Aigner
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - John E. Dick
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Mark D. Minden
- Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
- Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Daniel Schramek
- Centre for Molecular and Systems Biology, Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Canada
| | - Gene W. Yeo
- Department of Cellular and Molecular Medicine, University of California San Diego, La Jolla, California
| | - Kristin J. Hope
- Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Canada
- Department of Medical Biophysics, University of Toronto, Toronto, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
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Bai S, Wang H, Shao R, Fu B, Lu S, Wang J, Lu Y, Wang H. Lipid profile as a novel prognostic predictor for patients with acute myeloid leukemia. Front Oncol 2023; 13:950732. [PMID: 36798819 PMCID: PMC9927215 DOI: 10.3389/fonc.2023.950732] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 01/16/2023] [Indexed: 02/01/2023] Open
Abstract
Purpose This study investigated the relationship between serum lipid levels and clinical outcomes in acute myeloid leukemia (AML) by establishing a predictive risk classification model. Method A total of 214 AML patients who were pathologically diagnosed and treated with standard induction chemotherapy at Sun Yat-Sen University Cancer Center were included. The patients were randomly divided into the training (n = 107) and validation (n=107) cohorts. Univariate and multivariate Cox analyses were used to assess the value of triglyceride (TG), Apolipoprotein B (Apo B), Apo Apolipoprotein A-I (Apo A-I), cholesterol (CHO), and high-density lipoprotein (HDL) as prognostic factors for AML. Results After a series of data analyses, a five-factor model was established to divide the patients into high- and low-risk groups. Kaplan-Meier survival analysis showed that the high-risk group had a poor prognosis (P<0.05). The area under the curve of the novel model for five-year OS was 0.737. A nomogram was constructed to integrate the model with age and the 2017 ELN cytogenetic classification, with the merged model showing improved accuracy with an area under the curve of 0.987 for five-year OS. Conclusion A novel model was constructed using a combination of the serum lipid profile and clinical characteristics of AML patients to enhance the predictive accuracy of clinical outcomes. The nomogram used the lipid profile which is routinely tested in clinical blood biochemistry and showed both specific prognostic and therapeutic potential.
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Affiliation(s)
| | | | | | | | | | | | - Yue Lu
- *Correspondence: Yue Lu, ; Hua Wang,
| | - Hua Wang
- *Correspondence: Yue Lu, ; Hua Wang,
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Doxorubicin-Loaded Polymeric Micelles Conjugated with CKR- and EVQ-FLT3 Peptides for Cytotoxicity in Leukemic Stem Cells. Pharmaceutics 2022; 14:pharmaceutics14102115. [PMID: 36297550 PMCID: PMC9610626 DOI: 10.3390/pharmaceutics14102115] [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: 08/13/2022] [Revised: 09/13/2022] [Accepted: 09/29/2022] [Indexed: 11/25/2022] Open
Abstract
Doxorubicin (Dox) is the standard chemotherapeutic agent for acute myeloblastic leukemia (AML) treatment. However, 40% of Dox-treated AML cases relapsed due to the presence of leukemic stem cells (LSCs). Thus, poloxamer 407 and CKR- and EVQ-FLT3 peptides were used to formulate Dox-micelles (DMs) and DM conjugated with peptides (CKR and EVQ) for improving AML-LSC treatment. Results indicated that DMs with a weight ratio of Dox to P407 of 1:200 had a particle size of 23.3 ± 1.3 nm with a high percentage of Dox entrapment. They were able to prolong drug release and maintain physicochemical stability. Following effective DM preparation, P407 was modified and conjugated with FLT3 peptides, CKR and EVQ to formulate DM-CKR, DM-EVQ, and DM-CKR+DM-EVQ. Freshly synthesized DMs displaying FLT3 peptides showed particle sizes smaller than 50 nm and a high drug entrapment level, comparable with DMs. DM-CKR+DM-EVQ was considerably more toxic to KG-1a (AML LSC-like cell model) than Dox-HCl. These FLT3-targeted DMs could increase drug uptake and induce apoptosis induction. Due to an increase in micelle-LSC binding and uptake, DMs displaying both peptides tended to improve the potency of Dox compared to a single peptide-coupled micelle.
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Griffioen MS, de Leeuw DC, Janssen JJWM, Smit L. Targeting Acute Myeloid Leukemia with Venetoclax; Biomarkers for Sensitivity and Rationale for Venetoclax-Based Combination Therapies. Cancers (Basel) 2022; 14:cancers14143456. [PMID: 35884517 PMCID: PMC9318140 DOI: 10.3390/cancers14143456] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/12/2022] [Indexed: 11/16/2022] Open
Abstract
Simple Summary Venetoclax has proven to be a promising therapy for newly diagnosed, relapsed and refractory AML patients ineligible for induction chemotherapy. Current ongoing clinical trials are evaluating its effectivity as frontline therapy for all acute myeloid leukemia (AML) patients. However, response rates vary wildly, depending on patient characteristics and mutational profiles. This review elaborates on the efficacy and safety of venetoclax compared to conventional chemotherapy for treatment of AML patients, comparing the response rates, overall survival and adverse events. Moreover, it gives an overview of genetic and epigenetic AML cell characteristics that give enhanced or decreased response to venetoclax and offers insights into the pathogenesis of venetoclax sensitivity and resistance. Additionally, it suggests possible treatment combinations predicted to be successful based on identified mechanisms influencing venetoclax sensitivity of AML cells. Abstract Venetoclax is a BCL-2 inhibitor that effectively improves clinical outcomes in newly diagnosed, relapsed and refractory acute myeloid leukemia (AML) patients, with complete response rates (with and without complete blood count recovery) ranging between 34–90% and 21–33%, respectively. Here, we aim to give an overview of the efficacy of venetoclax-based therapy for AML patients, as compared to standard chemotherapy, and on factors and mechanisms involved in venetoclax sensitivity and resistance in AML (stem) cells, with the aim to obtain a perspective of response biomarkers and combination therapies that could enhance the sensitivity of AML cells to venetoclax. The presence of molecular aberrancies can predict responses to venetoclax, with a higher response in NPM1-, IDH1/2-, TET2- and relapsed or refractory RUNX1-mutated AML. Decreased sensitivity to venetoclax was observed in patients harboring FLT3-ITD, TP53, K/NRAS or PTPN11 mutations. Moreover, resistance to venetoclax was observed in AML with a monocytic phenotype and patients pre-treated with hypomethylating agents. Resistance to venetoclax can arise due to mutations in BCL-2 or pro-apoptotic proteins, an increased dependency on MCL-1, and usage of additional/alternative sources for energy metabolism, such as glycolysis and fatty acid metabolism. Clinical studies are testing combination therapies that may circumvent resistance, including venetoclax combined with FLT3- and MCL-1 inhibitors, to enhance venetoclax-induced cell death. Other treatments that can potentially synergize with venetoclax, including MEK1/2 and mitochondrial complex inhibitors, need to be evaluated in a clinical setting.
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Affiliation(s)
- Mila S Griffioen
- Department of Hematology, Amsterdam UMC, Location VUmc, Cancer Center Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - David C de Leeuw
- Department of Hematology, Amsterdam UMC, Location VUmc, Cancer Center Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Jeroen J W M Janssen
- Department of Hematology, Amsterdam UMC, Location VUmc, Cancer Center Amsterdam, 1081 HV Amsterdam, The Netherlands
| | - Linda Smit
- Department of Hematology, Amsterdam UMC, Location VUmc, Cancer Center Amsterdam, 1081 HV Amsterdam, The Netherlands
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9
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Morris V, Wang D, Li Z, Marion W, Hughes T, Sousa P, Harada T, Sui SH, Naumenko S, Kalfon J, Sensharma P, Falchetti M, Vinicius da Silva R, Candelli T, Schneider P, Margaritis T, Holstege FCP, Pikman Y, Harris M, Stam RW, Orkin SH, Koehler AN, Shalek AK, North TE, Pimkin M, Daley GQ, Lummertz da Rocha E, Rowe RG. Hypoxic, glycolytic metabolism is a vulnerability of B-acute lymphoblastic leukemia-initiating cells. Cell Rep 2022; 39:110752. [PMID: 35476984 PMCID: PMC9099058 DOI: 10.1016/j.celrep.2022.110752] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 01/24/2022] [Accepted: 04/07/2022] [Indexed: 02/06/2023] Open
Abstract
High-risk forms of B-acute lymphoblastic leukemia (B-ALL) remain a therapeutic challenge. Leukemia-initiating cells (LICs) self-renew and spark relapse and therefore have been the subject of intensive investigation; however, the properties of LICs in high-risk B-ALL are not well understood. Here, we use single-cell transcriptomics and quantitative xenotransplantation to understand LICs in MLL-rearranged (MLL-r) B-ALL. Compared with reported LIC frequencies in acute myeloid leukemia (AML), engraftable LICs in MLL-r B-ALL are abundant. Although we find that multipotent, self-renewing LICs are enriched among phenotypically undifferentiated B-ALL cells, LICs with the capacity to replenish the leukemic cellular diversity can emerge from more mature fractions. While inhibiting oxidative phosphorylation blunts blast proliferation, this intervention promotes LIC emergence. Conversely, inhibiting hypoxia and glycolysis impairs MLL-r B-ALL LICs, providing a therapeutic benefit in xenotransplantation systems. These findings provide insight into the aggressive nature of MLL-r B-ALL and provide a rationale for therapeutic targeting of hypoxia and glycolysis.
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Affiliation(s)
- Vivian Morris
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Dahai Wang
- Stem Cell Transplantation Program, Department of Hematology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Zhiheng Li
- Stem Cell Transplantation Program, Department of Hematology, Boston Children's Hospital, Boston, MA 02115, USA
| | - William Marion
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Travis Hughes
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Patricia Sousa
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA
| | - Taku Harada
- Cancer and Blood Disorders Center, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA
| | - Shannan Ho Sui
- Harvard Chan Bioinformatics Core, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Sergey Naumenko
- Harvard Chan Bioinformatics Core, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jérémie Kalfon
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Prerana Sensharma
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA; Stem Cell Transplantation Program, Department of Hematology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Marcelo Falchetti
- Graduate Program of Pharmacology, Center for Biological Sciences, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Renan Vinicius da Silva
- Graduate Program of Pharmacology, Center for Biological Sciences, Federal University of Santa Catarina, Florianópolis, Santa Catarina 88040-900, Brazil
| | - Tito Candelli
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Pauline Schneider
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | | | | | - Yana Pikman
- Harvard Medical School, Boston, MA 02115, USA; Cancer and Blood Disorders Center, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA
| | - Marian Harris
- Harvard Medical School, Boston, MA 02115, USA; Department of Pathology, Boston Children's Hospital, Boston, MA 02115, USA
| | - Ronald W Stam
- Princess Máxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Stuart H Orkin
- Harvard Medical School, Boston, MA 02115, USA; Cancer and Blood Disorders Center, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA; Howard Hughes Medical Institute, Boston, MA 02115, USA
| | - Angela N Koehler
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| | - Alex K Shalek
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Institute for Medical Engineering & Science, Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA 02142, USA; Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Trista E North
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Maxim Pimkin
- Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA; Harvard Medical School, Boston, MA 02115, USA; Cancer and Blood Disorders Center, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA
| | - George Q Daley
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA
| | - Edroaldo Lummertz da Rocha
- Department of Microbiology, Immunology and Parasitology, Federal University of Santa Catarina, Florianópolis Santa Catarina 88040-900, Brazil
| | - R Grant Rowe
- Stem Cell Program, Boston Children's Hospital, Boston, MA 02115, USA; Stem Cell Transplantation Program, Department of Hematology, Boston Children's Hospital, Boston, MA 02115, USA; Harvard Medical School, Boston, MA 02115, USA; Cancer and Blood Disorders Center, Dana-Farber Cancer Institute and Boston Children's Hospital, Boston, MA 02115, USA.
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10
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Mayer IM, Hoelbl-Kovacic A, Sexl V, Doma E. Isolation, Maintenance and Expansion of Adult Hematopoietic Stem/Progenitor Cells and Leukemic Stem Cells. Cancers (Basel) 2022; 14:cancers14071723. [PMID: 35406494 PMCID: PMC8996967 DOI: 10.3390/cancers14071723] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 12/12/2022] Open
Abstract
Simple Summary Transplantation of adult hematopoietic stem cells is an important therapeutic tool to help patients suffering from diverse hematological disorders. All types of blood cells can develop from a single hematopoietic stem cell underlining their enormous potential. Intense efforts are ongoing to generate “engraftable” human hematopoietic stem cells to treat hematopoietic diseases and to understand the molecular machinery driving them. Leukemic stem cells represent a low frequency subpopulation of leukemia cells that possess stem cell properties. They can instigate, maintain, and serially propagate leukemia in vivo, while they retain the capacity to differentiate into committed progenitors. Leukemic stem cells are unaffected by many therapeutic strategies and represent the major cause of relapse. We here describe all methods to maintain and expand murine and human hematopoietic cells in culture and describe their specific advantages. These methods are also employed to understand the biology of leukemic stem cells and to identify novel therapeutic strategies. Abstract Hematopoietic stem cells (HSCs) are rare, self-renewing cells that perch on top of the hematopoietic tree. The HSCs ensure the constant supply of mature blood cells in a tightly regulated process producing peripheral blood cells. Intense efforts are ongoing to optimize HSC engraftment as therapeutic strategy to treat patients suffering from hematopoietic diseases. Preclinical research paves the way by developing methods to maintain, manipulate and expand HSCs ex vivo to understand their regulation and molecular make-up. The generation of a sufficient number of transplantable HSCs is the Holy Grail for clinical therapy. Leukemia stem cells (LSCs) are characterized by their acquired stem cell characteristics and are responsible for disease initiation, progression, and relapse. We summarize efforts, that have been undertaken to increase the number of long-term (LT)-HSCs and to prevent differentiation towards committed progenitors in ex vivo culture. We provide an overview and compare methods currently available to isolate, maintain and enrich HSC subsets, progenitors and LSCs and discuss their individual advantages and drawbacks.
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11
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The combination phenotype of B-cell specific Moloney murine leukaemia virus integration site 1 (BMI1) and CD44+/CD24−/low associates with poor clinicopathological features in African patients with breast cancer. GENE REPORTS 2022. [DOI: 10.1016/j.genrep.2021.101475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Alpert A, Nahman O, Starosvetsky E, Hayun M, Curiel TJ, Ofran Y, Shen-Orr SS. Alignment of single-cell trajectories by tuMap enables high-resolution quantitative comparison of cancer samples. Cell Syst 2022; 13:71-82.e8. [PMID: 34624253 PMCID: PMC8776581 DOI: 10.1016/j.cels.2021.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 06/20/2021] [Accepted: 09/09/2021] [Indexed: 01/21/2023]
Abstract
Single-cell technologies allow characterization of cancer samples as continuous developmental trajectories. Yet, the obtained temporal resolution cannot be leveraged for a comparative analysis due to the large phenotypic heterogeneity existing between patients. Here, we present the tuMap algorithm that exploits high-dimensional single-cell data of cancer samples exhibiting an underlying developmental structure to align them with the healthy development, yielding the tuMap pseudotime axis that allows their systematic, meaningful comparison. We applied tuMap on single-cell mass cytometry data of acute lymphoblastic and myeloid leukemia to reveal associations between the tuMap pseudotime axis and clinics that outperform cellular assignment into developmental populations. Application of the tuMap algorithm on single-cell RNA sequencing data further identified gene signatures of stem cells residing at the very-early parts of the cancer trajectories. The quantitative framework provided by tuMap allows generation of metrics for cancer patients evaluation.
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Affiliation(s)
- Ayelet Alpert
- Department of Immunology, Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3525422, Israel
| | - Ornit Nahman
- Department of Immunology, Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3525422, Israel
| | - Elina Starosvetsky
- Department of Immunology, Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3525422, Israel
| | - Michal Hayun
- Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa 3109601, Israel
| | - Tyler J Curiel
- Department of Medicine/Hematology & Medical Oncology, School of Medicine, the University of Texas Health San Antonio, San Antonio, TX 78229, USA
| | - Yishai Ofran
- Department of Immunology, Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3525422, Israel; Department of Hematology and Bone Marrow Transplantation, Rambam Health Care Campus, Haifa 3109601, Israel; Department of Hematology, Shaare Zedek Medical Center, Faculty of Medicine, Hebrew University of Jerusalem, Jerusalem 9103102, Israel.
| | - Shai S Shen-Orr
- Department of Immunology, Faculty of Medicine, Technion Israel Institute of Technology, Haifa 3525422, Israel.
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13
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Sharma ND, Keewan E, Matlawska-Wasowska K. Metabolic Reprogramming and Cell Adhesion in Acute Leukemia Adaptation to the CNS Niche. Front Cell Dev Biol 2021; 9:767510. [PMID: 34957100 PMCID: PMC8703109 DOI: 10.3389/fcell.2021.767510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Accepted: 11/29/2021] [Indexed: 12/14/2022] Open
Abstract
Involvement of the Central Nervous System (CNS) in acute leukemia confers poor prognosis and lower overall survival. Existing CNS-directed therapies are associated with a significant risk of short- or long-term toxicities. Leukemic cells can metabolically adapt and survive in the microenvironment of the CNS. The supporting role of the CNS microenvironment in leukemia progression and dissemination has not received sufficient attention. Understanding the mechanism by which leukemic cells survive in the nutrient-poor and oxygen-deprived CNS microenvironment will lead to the development of more specific and less toxic therapies. Here, we review the current literature regarding the roles of metabolic reprogramming in leukemic cell adhesion and survival in the CNS.
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Affiliation(s)
- Nitesh D Sharma
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, NM, United States.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, NM, United States
| | - Esra'a Keewan
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, NM, United States.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, NM, United States
| | - Ksenia Matlawska-Wasowska
- Department of Pediatrics, Division of Hematology-Oncology, University of New Mexico Health Sciences Center, Albuquerque, NM, United States.,Comprehensive Cancer Center, University of New Mexico, Albuquerque, NM, United States
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14
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Pauli C, Kienhöfer M, Göllner S, Müller-Tidow C. Epitranscriptomic modifications in acute myeloid leukemia: m 6A and 2'- O-methylation as targets for novel therapeutic strategies. Biol Chem 2021; 402:1531-1546. [PMID: 34634841 DOI: 10.1515/hsz-2021-0286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 09/24/2021] [Indexed: 11/15/2022]
Abstract
Modifications of RNA commonly occur in all species. Multiple enzymes are involved as writers, erasers and readers of these modifications. Many RNA modifications or the respective enzymes are associated with human disease and especially cancer. Currently, the mechanisms how RNA modifications impact on a large number of intracellular processes are emerging and knowledge about the pathogenetic role of RNA modifications increases. In Acute Myeloid Leukemia (AML), the N6-methyladenosine (m6A) modification has emerged as an important modulator of leukemogenesis. The writer proteins METTL3 and METTL14 are both involved in AML pathogenesis and might be suitable therapeutic targets. Recently, close links between 2'-O-methylation (2'-O-me) of ribosomal RNA and leukemogenesis were discovered. The AML1-ETO oncofusion protein which specifically occurs in a subset of AML was found to depend on induction of snoRNAs and 2'-O-me for leukemogenesis. Also, NPM1, an important tumor suppressor in AML, was associated with altered snoRNAs and 2'-O-me. These findings point toward novel pathogenetic mechanisms and potential therapeutic interventions. The current knowledge and the implications are the topic of this review.
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Affiliation(s)
- Cornelius Pauli
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
- German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Michael Kienhöfer
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Stefanie Göllner
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
| | - Carsten Müller-Tidow
- Department of Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Im Neuenheimer Feld 410, 69120 Heidelberg, Germany
- Molecular Medicine Partnership Unit, European Molecular Biology Laboratory (EMBL)-Heidelberg University Hospital, 69117 Heidelberg, Germany
- National Center for Tumor Diseases (NCT), 69120 Heidelberg, Germany
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15
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Chueahongthong F, Tima S, Chiampanichayakul S, Berkland C, Anuchapreeda S. Co-Treatments of Edible Curcumin from Turmeric Rhizomes and Chemotherapeutic Drugs on Cytotoxicity and FLT3 Protein Expression in Leukemic Stem Cells. Molecules 2021; 26:5785. [PMID: 34641328 PMCID: PMC8510311 DOI: 10.3390/molecules26195785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 09/13/2021] [Accepted: 09/21/2021] [Indexed: 12/15/2022] Open
Abstract
This study aims to enhance efficacy and reduce toxicity of the combination treatment of a drug and curcumin (Cur) on leukemic stem cell and leukemic cell lines, including KG-1a and KG-1 (FLT3+ LSCs), EoL-1 (FLT3+ LCs), and U937 (FLT3- LCs). The cytotoxicity of co-treatments of doxorubicin (Dox) or idarubicin (Ida) at concentrations of the IC10-IC80 values and each concentration of Cur at the IC20, IC30, IC40, and IC50 values (conditions 1, 2, 3, and 4) was determined by MTT assays. Dox-Cur increased cytotoxicity in leukemic cells. Dox-Cur co-treatment showed additive and synergistic effects in several conditions. The effect of this co-treatment on FLT3 expression in KG-1a, KG-1, and EoL-1 cells was examined by Western blotting. Dox-Cur decreased FLT3 protein levels and total cell numbers in all the cell lines in a dose-dependent manner. In summary, this study exhibits a novel report of Dox-Cur co-treatment in both enhancing cytotoxicity of Dox and inhibiting cell proliferation via FLT3 protein expression in leukemia stem cells and leukemic cells. This is the option of leukemia treatment with reducing side effects of chemotherapeutic drugs to leukemia patients.
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Affiliation(s)
- Fah Chueahongthong
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (F.C.); (S.T.); (S.C.)
| | - Singkome Tima
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (F.C.); (S.T.); (S.C.)
- Cancer Research Unit of Associated Medical Sciences (AMS-CRU), Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Sawitree Chiampanichayakul
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (F.C.); (S.T.); (S.C.)
- Cancer Research Unit of Associated Medical Sciences (AMS-CRU), Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Cory Berkland
- Department of Pharmaceutical Chemistry, School of Pharmacy, University of Kansas, Lawrence, KS 66047, USA
| | - Songyot Anuchapreeda
- Division of Clinical Microscopy, Department of Medical Technology, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand; (F.C.); (S.T.); (S.C.)
- Cancer Research Unit of Associated Medical Sciences (AMS-CRU), Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
- Center for Research and Development of Natural Products for Health, Chiang Mai University, Chiang Mai 50200, Thailand
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16
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Joudinaud R, Boyer T. Stem Cells in Myelodysplastic Syndromes and Acute Myeloid Leukemia: First Cousins or Unrelated Entities? Front Oncol 2021; 11:730899. [PMID: 34490124 PMCID: PMC8417738 DOI: 10.3389/fonc.2021.730899] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/03/2021] [Indexed: 11/16/2022] Open
Abstract
Myelodysplastic syndromes (MDSs) are associated with a significant risk of transformation to acute myeloid leukemia (AML), supported by alterations affecting malignant stem cells. This review focuses on the metabolic, phenotypic and genetic characteristics underlying this dynamic evolution, from myelodysplastic stem cells (MDS-SCs) to leukemic stem cells (LSCs). MDS-SCs are more likely to be derived from healthy hematopoietic stem cells (HSCs), whereas LSCs may originate from healthy progenitors, mostly LMPP (lymphoid-primed multipotential progenitors). Moreover, overexpression of CD123 and CLL1 markers by LSCs and MDS-SCs in high risk-MDS [HR-MDS] has led to exciting therapeutic applications. Single-cell sequencing has suggested that clonal evolution in the stem cell compartment was non-linear during MDS initiation and progression to AML, with pre-MDS-SC acquiring distinct additional mutations in parallel, that drive either MDS blast production or AML transformation. In AML and HR-MDS, common metabolic alterations have been identified in malignant stem cells, including activation of the protein machinery and dependence on oxidative phosphorylation. Targeting these metabolic abnormalities could prevent HR-MDS from progressing to AML. Strikingly, in low risk-MDS-SC, the expression of ribosomal proteins is decreased, which may be accompanied by a reduction in protein synthesis.
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Affiliation(s)
| | - Thomas Boyer
- Laboratory of Hematology, University of Amiens, Amiens Hospital, Amiens, France
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17
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Wang J, Yang L, Dao FT, Wang YZ, Chang Y, Xu N, Chen WM, Jiang Q, Jiang H, Liu YR, Qin YZ. Prognostic significance of TIM-3 expression pattern at diagnosis in patients with t(8;21) acute myeloid leukemia. Leuk Lymphoma 2021; 63:152-161. [PMID: 34405769 DOI: 10.1080/10428194.2021.1966785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Acute myeloid leukemia (AML) with t(8;21) is a heterogeneous disease and needs to be stratified. Both, cancer cells and immune cells participate in tumor initiation, growth and progression and might affect clinical outcomes. TIM-3 (T cell immunoglobulin and mucin domain-containing protein 3), an immune checkpoint molecule, is expressed not only on immune cells but also on leukemic stem cells (LSCs) in AML. This prompted us to investigate the prognostic significance of TIM-3 in t(8;21) AML. A total of 47 t(8;21) AML patients were tested for TIM-3 expression by multi-parameter flow cytometry at diagnosis. 35 of these, who received chemotherapy alone or along with allogeneic hematopoietic stem cell transplantation were followed up. The expression pattern of TIM-3 on T-cells and NK (natural killer) cells as a whole (T + NK) and LSCs were evaluated independently. High percentage of T + NK - TIM-3+ and CD34+CD38-TIM-3+ cells were significantly associated with a high 2-year cumulative incidence of relapse (CIR) (p = 0.028, 0.016). Further, concurrent high frequencies of T + NK-TIM-3+ and CD34+CD38-TIM-3+ cells at diagnosis were significantly associated with a high 2-year CIR (p < 0.0001) and this together with c-KIT D816 mutation were the independent adverse prognostic factors for relapse (hazard ratio (HR)=2.5, [95% confidence interval (CI), 1.1-6.0], p = 0.04; HR = 46.5, [95% CI, 2.7-811.5], p = 0.009). In conclusion, the expression pattern of TIM-3 on both T and NK cells and LSCs at diagnosis had prognostic significance in t (8;21) AML.
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Affiliation(s)
- Jun Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Lu Yang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Feng-Ting Dao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Ya-Zhe Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Yan Chang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Nan Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Wen-Min Chen
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Qian Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Hao Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Yan-Rong Liu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
| | - Ya-Zhen Qin
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing, China
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18
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Thrombopoietin-based CAR-T cells demonstrate in vitro and in vivo cytotoxicity to MPL positive acute myelogenous leukemia and hematopoietic stem cells. Gene Ther 2021; 29:1-12. [PMID: 34385604 DOI: 10.1038/s41434-021-00283-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 07/10/2021] [Accepted: 07/21/2021] [Indexed: 12/17/2022]
Abstract
While targeting CD19+ hematologic malignancies with CAR T cell therapy using single chain variable fragments (scFv) has been highly successful, novel strategies for applying CAR T cell therapy with other tumor types are necessary. In the current study, CAR T cells were designed using a ligand binding domain instead of an scFv to target stem-like leukemia cells. Thrombopoietin (TPO), the natural ligand to the myeloproliferative leukemia protein (MPL) receptor, was used as the antigen binding domain to engage MPL expressed on hematopoietic stem cells (HSC) and erythropoietic and megakaryocytic acute myeloid leukemias (AML). TPO-CAR T cells were tested in vitro against AML cell lines with varied MPL expression to test specificity. TPO-CAR T cells were specifically activating and cytotoxic against MPL+ leukemia cell lines. Though the TPO-CAR T cells did not extend survival in vivo, it successfully cleared the MPL+ fraction of leukemia cells. As expected, we also show the TPO-CAR is cytotoxic against MPL expressing bone marrow compartment in AML xenograft models. The data collected demonstrate preclinical potential of TPO-CAR T cells for stem-like leukemia through assessment of targeted killing of MPL+ cells and may facilitate subsequent HSC transplant under reduced intensity conditioning regimens.
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19
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Sendker S, Waack K, Reinhardt D. Far from Health: The Bone Marrow Microenvironment in AML, A Leukemia Supportive Shelter. CHILDREN (BASEL, SWITZERLAND) 2021; 8:371. [PMID: 34066861 PMCID: PMC8150304 DOI: 10.3390/children8050371] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 12/28/2022]
Abstract
Acute myeloid leukemia (AML) is the second most common leukemia among children. Although significant progress in AML therapy has been achieved, treatment failure is still associated with poor prognosis, emphasizing the need for novel, innovative therapeutic approaches. To address this major obstacle, extensive knowledge about leukemogenesis and the complex interplay between leukemic cells and their microenvironment is required. The tremendous role of this bone marrow microenvironment in providing a supportive and protective shelter for leukemic cells, leading to disease development, progression, and relapse, has been emphasized by recent research. It has been revealed that the interplay between leukemic cells and surrounding cellular as well as non-cellular components is critical in the process of leukemogenesis. In this review, we provide a comprehensive overview of recently gained knowledge about the importance of the microenvironment in AML whilst focusing on promising future therapeutic targets. In this context, we describe ongoing clinical trials and future challenges for the development of targeted therapies for AML.
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Affiliation(s)
| | | | - Dirk Reinhardt
- Department of Pediatric Hematology and Oncology, Clinic of Pediatrics III, Essen University Hospital, 45147 Essen, Germany; (S.S.); (K.W.)
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20
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Jones CL, Inguva A, Jordan CT. Targeting Energy Metabolism in Cancer Stem Cells: Progress and Challenges in Leukemia and Solid Tumors. Cell Stem Cell 2021; 28:378-393. [PMID: 33667359 PMCID: PMC7951949 DOI: 10.1016/j.stem.2021.02.013] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Malignant stem cells have long been considered a key therapeutic target in leukemia. Therapeutic strategies designed to target the fundamental biology of leukemia stem cells while sparing normal hematopoietic cells may provide better outcomes for leukemia patients. One process in leukemia stem cell biology that has intriguing therapeutic potential is energy metabolism. In this article we discuss the metabolic properties of leukemia stem cells and how targeting energy metabolism may provide more effective therapeutic regimens for leukemia patients. In addition, we highlight the similarities and differences in energy metabolism between leukemia stem cells and malignant stem cells from solid tumors.
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Affiliation(s)
- Courtney L Jones
- Princess Margaret Cancer Centre, 101 College St. Toronto, ON M5G 1L7, Canada
| | - Anagha Inguva
- Division of Hematology, University of Colorado, 12700 East 19th Ave., Aurora, CO 80045, USA
| | - Craig T Jordan
- Division of Hematology, University of Colorado, 12700 East 19th Ave., Aurora, CO 80045, USA.
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21
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Mamun MA, Mannoor K, Cao J, Qadri F, Song X. SOX2 in cancer stemness: tumor malignancy and therapeutic potentials. J Mol Cell Biol 2021; 12:85-98. [PMID: 30517668 PMCID: PMC7109607 DOI: 10.1093/jmcb/mjy080] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/18/2018] [Accepted: 12/04/2018] [Indexed: 12/12/2022] Open
Abstract
Cancer stem cells (CSCs), a minor subpopulation of tumor bulks with self-renewal and seeding capacity to generate new tumors, posit a significant challenge to develop effective and long-lasting anti-cancer therapies. The emergence of drug resistance appears upon failure of chemo-/radiation therapy to eradicate the CSCs, thereby leading to CSC-mediated clinical relapse. Accumulating evidence suggests that transcription factor SOX2, a master regulator of embryonic and induced pluripotent stem cells, drives cancer stemness, fuels tumor initiation, and contributes to tumor aggressiveness through major drug resistance mechanisms like epithelial-to-mesenchymal transition, ATP-binding cassette drug transporters, anti-apoptotic and/or pro-survival signaling, lineage plasticity, and evasion of immune surveillance. Gaining a better insight and comprehensive interrogation into the mechanistic basis of SOX2-mediated generation of CSCs and treatment failure might therefore lead to new therapeutic targets involving CSC-specific anti-cancer strategies.
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Affiliation(s)
- Mahfuz Al Mamun
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Kaiissar Mannoor
- Oncology Laboratory, Institute for Developing Science & Health Initiatives (ideSHi), Dhaka, Bangladesh
| | - Jun Cao
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China
| | - Firdausi Qadri
- Oncology Laboratory, Institute for Developing Science & Health Initiatives (ideSHi), Dhaka, Bangladesh
| | - Xiaoyuan Song
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei, China.,CAS Key Laboratory of Brain Function and Disease, CAS Center for Excellence in Molecular Cell Science, School of Life Sciences, University of Science and Technology of China, Hefei, China
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22
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Russkamp NF, Myburgh R, Kiefer JD, Neri D, Manz MG. Anti-CD117 immunotherapy to eliminate hematopoietic and leukemia stem cells. Exp Hematol 2021; 95:31-45. [PMID: 33484750 DOI: 10.1016/j.exphem.2021.01.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/11/2022]
Abstract
Precise replacement of diseased or dysfunctional organs is the goal of regenerative medicine and has appeared to be a distant goal for a long time. In the field of hematopoietic stem cell transplantation, this goal is now becoming tangible as gene-editing technologies and novel conditioning agents are entering the clinical arena. Targeted immunologic depletion of hematopoietic stem cells (HSCs), which are at the very root of the hematopoietic system, will enable more selective and potentially more effective hematopoietic stem cell transplantation in patients with hematological diseases. In contrast to current conditioning regimes based on ionizing radiation and chemotherapy, immunologic conditioning will spare mature hematopoietic cells and cause substantially less inflammation and unspecific collateral damage to other organs. Biological agents that target the stem cell antigen CD117 are the frontrunners for this purpose and have exhibited preclinical activity in depletion of healthy HSCs. The value of anti-CD117 antibodies as conditioning agents is currently being evaluated in early clinical trials. Whereas mild, antibody-based immunologic conditioning concepts might be appropriate for benign hematological disorders in which incomplete replacement of diseased cells is sufficient, higher efficacy will be required for treatment and elimination of hematologic stem cell malignancies such as acute myeloid leukemia and myelodysplastic syndrome. Antibody-drug conjugates, bispecific T-cell engaging and activating antibodies (TEAs), or chimeric antigen receptor (CAR) T cells might offer increased efficacy compared with naked antibodies and yet higher tolerability and safety compared with current genotoxic conditioning approaches. Here, we summarize the current state regarding immunologic conditioning concepts for the treatment of HSC disorders and outline potential future developments.
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Affiliation(s)
- Norman F Russkamp
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Renier Myburgh
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland
| | - Jonathan D Kiefer
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland; Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Zurich, Switzerland
| | - Markus G Manz
- Department of Medical Oncology and Hematology, University Hospital Zurich and University of Zurich, Comprehensive Cancer Center Zurich (CCCZ), Zurich, Switzerland.
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23
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Spyrou N, Papapetrou EP. Studying leukemia stem cell properties and vulnerabilities with human iPSCs. Stem Cell Res 2020; 50:102117. [PMID: 33388708 PMCID: PMC8190184 DOI: 10.1016/j.scr.2020.102117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/16/2020] [Accepted: 12/04/2020] [Indexed: 12/17/2022] Open
Abstract
The reprogramming of cancer cells into induced pluripotent stem cells (iPSCs) can capture entire cancer genomes, and thus create genetically faithful models of human cancers. By providing stringent genetically clonal conditions, iPSC modeling can also unveil non-genetic sources of cancer heterogeneity and provide a unique opportunity to study them separately from genetic sources, as we recently showed in an iPSC-based model of acute myeloid leukemia (AML). Genetically clonal iPSCs, derived from a patient with AML, reproduce, upon hematopoietic differentiation, phenotypic and functional heterogeneity with all the hallmarks of a leukemia stem cell (LSC) hierarchy. Here we discuss the lessons that can be learned about the LSC state, its plasticity, stability and genetic and epigenetic determinants from iPSC modeling. We also discuss the practical and translational implications of exploiting AML-iPSCs to prospectively isolate large numbers of iLSCs for large-scale experiments, such as screens, and for discovery of new therapeutic targets specific to AML LSCs.
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Affiliation(s)
- Nikolaos Spyrou
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eirini P Papapetrou
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
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24
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Chen Y, Zheng J, Gan D, Chen Y, Zhang N, Chen Y, Lin Z, Wang W, Chen H, Lin D, Hu J. E35 ablates acute leukemia stem and progenitor cells in vitro and in vivo. J Cell Physiol 2020; 235:8023-8034. [PMID: 31960417 PMCID: PMC7540425 DOI: 10.1002/jcp.29457] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Accepted: 01/03/2020] [Indexed: 12/11/2022]
Abstract
Leukemia stem cells (LSCs) have critical functions in acute leukemia (AL) pathogenesis, participating in its initiation and relapse. Thus, identifying new molecules to eradicate LSCs represents a high priority for AL management. This work identified E35, a novel Emodin derivative, which strongly inhibited growth and enhanced apoptosis of AL stem cell lines, and primary stem and progenitor cells from AL cases, while sparing normal hematopoietic cells. Furthermore, functional assays in cultured cells and animals suggested that E35 preferentially ablated primitive leukemia cell populations without impairing their normal counterparts. Moreover, molecular studies showed that E35 remarkably downregulated drug-resistant gene and dramatically inhibited the Akt/mammalian target of rapamycin signaling pathway. Notably, the in vivo anti-LSC activity of E35 was further confirmed in murine xenotransplantation models. Collectively, these findings indicate E35 constitutes a novel therapeutic candidate for AL, potentially targeting leukemia stem and progenitor cells.
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Affiliation(s)
- Yingyu Chen
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Jing Zheng
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Donghui Gan
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
- Department of HematologyThe Affiliated Hospital of Putian UniversityPutianFujianChina
| | - Yanxin Chen
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Na Zhang
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Yuwen Chen
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Zhenxing Lin
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
| | - Wenfeng Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of ChemistryFuzhou UniversityFuzhouFujianChina
| | - Haijun Chen
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of ChemistryFuzhou UniversityFuzhouFujianChina
| | - Donghong Lin
- Department of Clinical LaboratorySchool of Medical Technology and EngineeringFujian Medical UniversityFujianChina
| | - Jianda Hu
- Department of HematologyFujian Institute of HematologyFujian Medical University Union HospitalFuzhouFujianChina
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25
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Oshima K, Zhao J, Pérez-Durán P, Brown JA, Patiño-Galindo JA, Chu T, Quinn A, Gunning T, Belver L, Ambesi-Impiombato A, Tosello V, Wang Z, Sulis ML, Kato M, Koh K, Paganin M, Basso G, Balbin M, Nicolas C, Gastier-Foster JM, Devidas M, Loh ML, Paietta E, Tallman MS, Rowe JM, Litzow M, Minden MD, Meijerink J, Rabadan R, Ferrando A. Mutational and functional genetics mapping of chemotherapy resistance mechanisms in relapsed acute lymphoblastic leukemia. ACTA ACUST UNITED AC 2020; 1:1113-1127. [PMID: 33796864 DOI: 10.1038/s43018-020-00124-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Multi-agent combination chemotherapy can be curative in acute lymphoblastic leukemia (ALL). Still, patients with primary refractory disease or with relapsed leukemia have a very poor prognosis. Here we integrate an in-depth dissection of the mutational landscape across diagnostic and relapsed pediatric and adult ALL samples with genome-wide CRISPR screen analysis of gene-drug interactions across seven ALL chemotherapy drugs. By combining these analyses, we uncover diagnostic and relapse-specific mutational mechanisms as well as genetic drivers of chemoresistance. Functionally, our data identifies common and drug-specific pathways modulating chemotherapy response and underscores the effect of drug combinations in restricting the selection of resistance-driving genetic lesions. In addition, by identifying actionable targets for the reversal of chemotherapy resistance, these analyses open novel therapeutic opportunities for the treatment of relapse and refractory disease.
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Affiliation(s)
- Koichi Oshima
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,These authors contributed equally: Koichi Oshima, Junfei Zhao, Pablo Pérez-Durán, Jessie A. Brown
| | - Junfei Zhao
- Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Biomedical Informatics, Columbia University, New York, NY, USA.,These authors contributed equally: Koichi Oshima, Junfei Zhao, Pablo Pérez-Durán, Jessie A. Brown
| | - Pablo Pérez-Durán
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,These authors contributed equally: Koichi Oshima, Junfei Zhao, Pablo Pérez-Durán, Jessie A. Brown
| | - Jessie A Brown
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,These authors contributed equally: Koichi Oshima, Junfei Zhao, Pablo Pérez-Durán, Jessie A. Brown
| | - Juan Angel Patiño-Galindo
- Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Biomedical Informatics, Columbia University, New York, NY, USA
| | - Timothy Chu
- Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Biomedical Informatics, Columbia University, New York, NY, USA
| | - Aidan Quinn
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Thomas Gunning
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Laura Belver
- Institute for Cancer Genetics, Columbia University, New York, NY, USA
| | - Alberto Ambesi-Impiombato
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,Present address: PsychoGenics, Paramus, NJ, USA
| | | | - Zhengqiang Wang
- Center for Drug Design, College of Pharmacy, University of Minnesota, Minneapolis, MN, USA
| | - Maria Luisa Sulis
- Department of Pediatric Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Motohiro Kato
- Department of Hematology-Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Katsuyoshi Koh
- Department of Hematology-Oncology, Saitama Children's Medical Center, Saitama, Japan
| | - Maddalena Paganin
- Fondazione Città della Speranza, Istituto di Ricerca Pediatrica, Padova, Italy.,Haematology-Oncology Division, Department of Woman's and Child's Health, University Hospital of Padua, Padua, Italy
| | - Giuseppe Basso
- Haematology-Oncology Division, Department of Woman's and Child's Health, University Hospital of Padua, Padua, Italy.,Present address: IIGM Italian Institute of Genomic Medicine, Turin, Italy
| | - Milagros Balbin
- Molecular Oncology Laboratory, Instituto Universitario de Oncologia del Principado de Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain.,Instituto de Investigación Sanitaria del Principado de Asturias, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Concepcion Nicolas
- Hematology Service, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - Julie M Gastier-Foster
- Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, OH, USA.,Departments of Pathology and Pediatrics, Ohio State University School of Medicine, Columbus, OH, USA.,Children's Oncology Group, Arcadia, CA, USA
| | - Meenakshi Devidas
- Department of Biostatistics, University of Florida, Gainesville, FL, USA.,Present address: Department of Global Pediatric Medicine, St. Jude Children's Research Hospital, Memphis, TN, USA
| | - Mignon L Loh
- Department of Pediatrics, University of California San Francisco, San Francisco, CA, USA.,Helen Diller Family Comprehensive Cancer Center, San Francisco, CA, USA
| | | | - Martin S Tallman
- Department of Hematologic Oncology, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | | | - Mark D Minden
- Department of Oncology/Hematology, Princess Margaret Cancer Center, Toronto, ON, Canada
| | - Jules Meijerink
- Princess Maxima Center for Pediatric Oncology, Utrecht, the Netherlands
| | - Raul Rabadan
- Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Biomedical Informatics, Columbia University, New York, NY, USA
| | - Adolfo Ferrando
- Institute for Cancer Genetics, Columbia University, New York, NY, USA.,Department of Systems Biology, Columbia University, New York, NY, USA.,Department of Pathology and Cell Biology, Columbia University, New York, NY, USA.,Department of Pediatrics, Columbia University, New York, NY, USA
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26
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Walker BS, Zarour LR, Wieghard N, Gallagher AC, Swain JR, Weinmann S, Lanciault C, Billingsley K, Tsikitis VL, Wong MH. Stem Cell Marker Expression in Early Stage Colorectal Cancer is Associated with Recurrent Intestinal Neoplasia. World J Surg 2020; 44:3501-3509. [PMID: 32647988 PMCID: PMC10659815 DOI: 10.1007/s00268-020-05586-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND Colorectal cancer (CRC) ranks second in cancer deaths worldwide and presents multiple management challenges, one of which is identifying high risk stage II disease that may benefit from adjuvant therapy. Molecular biomarkers, such as ones that identify stem cell activity, could better stratify high-risk cohorts for additional treatment. METHODS To identify possible biomarkers of high-risk disease in early-stage CRC, a discovery set (n = 66) of advanced-stage tumors were immunostained with antibodies to stemness proteins (CD166, CD44, CD26, and LGR5) and then digitally analyzed. Using a second validation cohort (n = 54) of primary CRC tumors, we analyzed protein and gene expression of CD166 across disease stages, and extended our analyses to CD166-associated genes (LGR5, ASCL2, BMI1, POSTN, and VIM) by qRT-PCR. RESULTS Stage III and metastatic CRC tumors highly expressed stem cell-associated proteins, CD166, CD44, and LGR5. When evaluated across stages, CD166 protein expression was elevated in advanced-stage compared to early-stage tumors. Notably, a small subset of stage I and II cancers harbored elevated CD166 protein expression, which correlated with development of recurrent cancer or adenomatous polyps. Gene expression analyses of CD166-associated molecules revealed elevated ASCL2 in primary tumors from patients who recurred. CONCLUSIONS We identified a protein signature prognostic of aggressive disease in early stage CRC. Stem cell-associated protein and gene expression identified a subset of early-stage tumors associated with cancer recurrence and/or subsequent adenoma formation. Signatures for stemness offer promising fingerprints for stratifying early-stage patients at high risk of recurrence.
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Affiliation(s)
- Brett S Walker
- Department of Surgery, OHSU, 3181 SW Sam Jackson Park Rd, L619, Portland, OR, 97239, USA
| | - Luai R Zarour
- Department of Surgery, OHSU, 3181 SW Sam Jackson Park Rd, L619, Portland, OR, 97239, USA
| | - Nicole Wieghard
- Department of Surgery, OHSU, 3181 SW Sam Jackson Park Rd, L619, Portland, OR, 97239, USA
| | - Alexandra C Gallagher
- Department of Cell, Developmental, and Cancer Biology, OHSU, 2720 S Moody Ave., KR-CDCB, Portland, OR, 97201, USA
| | - John R Swain
- Department of Cell, Developmental, and Cancer Biology, OHSU, 2720 S Moody Ave., KR-CDCB, Portland, OR, 97201, USA
| | - Sheila Weinmann
- Kaiser Permanente Northwest Center for Health Research, 3800 N. Interstate Ave., Portland, OR, 97227, USA
| | - Christian Lanciault
- Department of Pathology, OHSU, 3181 SW Sam Jackson Park Rd, L-113, Portland, OR, 97239, USA
| | - Kevin Billingsley
- Department of Surgery, OHSU, 3181 SW Sam Jackson Park Rd, L619, Portland, OR, 97239, USA
- Knight Cancer Institute, Oregon Health & Science University, 2720 S Moody Ave., Portland, OR, 97201, USA
| | - V Liana Tsikitis
- Department of Surgery, OHSU, 3181 SW Sam Jackson Park Rd, L619, Portland, OR, 97239, USA.
- Knight Cancer Institute, Oregon Health & Science University, 2720 S Moody Ave., Portland, OR, 97201, USA.
| | - Melissa H Wong
- Department of Cell, Developmental, and Cancer Biology, OHSU, 2720 S Moody Ave., KR-CDCB, Portland, OR, 97201, USA.
- Knight Cancer Institute, Oregon Health & Science University, 2720 S Moody Ave., Portland, OR, 97201, USA.
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27
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Quantitative proteomics reveals specific metabolic features of acute myeloid leukemia stem cells. Blood 2020; 136:1507-1519. [DOI: 10.1182/blood.2019003654] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 05/08/2020] [Indexed: 12/12/2022] Open
Abstract
Abstract
Acute myeloid leukemia is characterized by the accumulation of clonal myeloid blast cells unable to differentiate into mature leukocytes. Chemotherapy induces remission in the majority of patients, but relapse rates are high and lead to poor clinical outcomes. Because this is primarily caused by chemotherapy-resistant leukemic stem cells (LSCs), it is essential to eradicate LSCs to improve patient survival. LSCs have predominantly been studied at the transcript level, thus information about posttranscriptionally regulated genes and associated networks is lacking. Here, we extend our previous report on LSC proteomes to healthy age-matched hematopoietic stem and progenitor cells (HSPCs) and correlate the proteomes to the corresponding transcriptomes. By comparing LSCs to leukemic blasts and healthy HSPCs, we validate candidate LSC markers and highlight novel and potentially targetable proteins that are absent or only lowly expressed in HSPCs. In addition, our data provide strong evidence that LSCs harbor a characteristic energy metabolism, adhesion molecule composition, as well as RNA-processing properties. Furthermore, correlating proteome and transcript data of the same individual samples highlights the strength of proteome analyses, which are particularly potent in detecting alterations in metabolic pathways. In summary, our study provides a comprehensive proteomic and transcriptomic characterization of functionally validated LSCs, blasts, and healthy HSPCs, representing a valuable resource helping to design LSC-directed therapies.
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28
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Hoffmann H, Thiede C, Glauche I, Bornhaeuser M, Roeder I. Differential response to cytotoxic therapy explains treatment dynamics of acute myeloid leukaemia patients: insights from a mathematical modelling approach. J R Soc Interface 2020; 17:20200091. [PMID: 32900301 DOI: 10.1098/rsif.2020.0091] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Disease response and durability of remission are very heterogeneous in patients with acute myeloid leukaemia (AML). There is increasing evidence that the individual risk of early relapse can be predicted based on the initial treatment response. However, it is unclear how such a correlation is linked to functional aspects of AML progression and treatment. We suggest a mathematical model in which leukaemia-initiating cells and normal/healthy haematopoietic stem and progenitor cells reversibly change between an active state characterized by proliferation and chemosensitivity and a quiescent state, in which the cells do not divide, but are also insensitive to chemotherapy. Applying this model to 275 molecular time courses of nucleophosmin 1-mutated patients, we conclude that the differential chemosensitivity of the leukaemia-initiating cells together with the cells' intrinsic proliferative capacity is sufficient to reproduce both, early relapse as well as long-lasting remission. We can, furthermore, show that the model parameters associated with individual chemosensitivity and proliferative advantage of the leukaemic cells are closely linked to the patients' time to relapse, while a reliable prediction based on early response only is not possible based on the currently available data. Although we demonstrate with our approach, that the complete response data is sufficient to quantify the aggressiveness of the disease, further investigations are necessary to study how an intensive early sampling strategy may prospectively improve risk assessment and help to optimize individual treatments.
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Affiliation(s)
- H Hoffmann
- Institute for Medical Informatics and Biometry, Carl Gustav Carus Faculty of Medicine, TU Dresden, Dresden, Germany
| | - C Thiede
- Medical Clinic and Polyclinic I, University Hospital Dresden Carl Gustav Carus, TU Dresden, Dresden, Germany
| | - I Glauche
- Institute for Medical Informatics and Biometry, Carl Gustav Carus Faculty of Medicine, TU Dresden, Dresden, Germany
| | - M Bornhaeuser
- Medical Clinic and Polyclinic I, University Hospital Dresden Carl Gustav Carus, TU Dresden, Dresden, Germany.,National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
| | - I Roeder
- Institute for Medical Informatics and Biometry, Carl Gustav Carus Faculty of Medicine, TU Dresden, Dresden, Germany.,National Center for Tumor Diseases (NCT), Partner Site Dresden, Dresden, Germany
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29
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Breast cancer stem cells: A fallow research ground in Africa. Pathol Res Pract 2020; 216:153118. [PMID: 32853953 DOI: 10.1016/j.prp.2020.153118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/24/2020] [Accepted: 07/07/2020] [Indexed: 12/19/2022]
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30
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Vetrie D, Helgason GV, Copland M. The leukaemia stem cell: similarities, differences and clinical prospects in CML and AML. Nat Rev Cancer 2020; 20:158-173. [PMID: 31907378 DOI: 10.1038/s41568-019-0230-9] [Citation(s) in RCA: 160] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/20/2019] [Indexed: 01/21/2023]
Abstract
For two decades, leukaemia stem cells (LSCs) in chronic myeloid leukaemia (CML) and acute myeloid leukaemia (AML) have been advanced paradigms for the cancer stem cell field. In CML, the acquisition of the fusion tyrosine kinase BCR-ABL1 in a haematopoietic stem cell drives its transformation to become a LSC. In AML, LSCs can arise from multiple cell types through the activity of a number of oncogenic drivers and pre-leukaemic events, adding further layers of context and genetic and cellular heterogeneity to AML LSCs not observed in most cases of CML. Furthermore, LSCs from both AML and CML can be refractory to standard-of-care therapies and persist in patients, diversify clonally and serve as reservoirs to drive relapse, recurrence or progression to more aggressive forms. Despite these complexities, LSCs in both diseases share biological features, making them distinct from other CML or AML progenitor cells and from normal haematopoietic stem cells. These features may represent Achilles' heels against which novel therapies can be developed. Here, we review many of the similarities and differences that exist between LSCs in CML and AML and examine the therapeutic strategies that could be used to eradicate them.
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MESH Headings
- Animals
- Biomarkers, Tumor
- Cell Transformation, Neoplastic/genetics
- Cell Transformation, Neoplastic/immunology
- Cell Transformation, Neoplastic/metabolism
- Disease Management
- Disease Susceptibility
- Drug Development
- History, 20th Century
- History, 21st Century
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/diagnosis
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/etiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukemia, Myeloid, Acute/diagnosis
- Leukemia, Myeloid, Acute/etiology
- Leukemia, Myeloid, Acute/metabolism
- Leukemia, Myeloid, Acute/therapy
- Molecular Targeted Therapy
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- Research/history
- Research/trends
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Affiliation(s)
- David Vetrie
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
| | - G Vignir Helgason
- Wolfson Wohl Cancer Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK
| | - Mhairi Copland
- Paul O'Gorman Leukaemia Research Centre, Institute of Cancer Sciences, University of Glasgow, Glasgow, UK.
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31
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Mayhew V, Omokehinde T, Johnson RW. Tumor dormancy in bone. Cancer Rep (Hoboken) 2020; 3:e1156. [PMID: 32632400 PMCID: PMC7337256 DOI: 10.1002/cnr2.1156] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 12/10/2018] [Accepted: 01/04/2019] [Indexed: 12/20/2022] Open
Abstract
Background Bone marrow is a common site of metastasis for a number of tumor types, including breast, prostate, and lung cancer, but the mechanisms controlling tumor dormancy in bone are poorly understood. In breast cancer, while advances in drug development, screening practices, and surgical techniques have dramatically improved survival rates in recent decades, metastatic recurrence in the bone remains common and can develop years or decades after elimination of the primary tumor. Recent Findings It is now understood that tumor cells disseminate to distant metastatic sites at early stages of tumor progression, leaving cancer survivors at a high risk of recurrence. This review will discuss mechanisms of bone lesion development and current theories of how dormant cancer cells behave in bone, as well as a number of processes suspected to be involved in the maintenance of and exit from dormancy in the bone microenvironment. Conclusions The bone is a complex microenvironment with a multitude of cell types and processes. Many of these factors, including angiogenesis, immune surveillance, and hypoxia, are thought to regulate tumor cell entry and exit from dormancy in different bone marrow niches.
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Affiliation(s)
- Vera Mayhew
- Graduate Program in Cancer BiologyVanderbilt UniversityNashvilleTNUSA
- Vanderbilt Center for Bone Biology
| | - Tolu Omokehinde
- Graduate Program in Cancer BiologyVanderbilt UniversityNashvilleTNUSA
- Vanderbilt Center for Bone Biology
| | - Rachelle W. Johnson
- Vanderbilt Center for Bone Biology
- Department of Medicine, Division of Clinical PharmacologyVanderbilt University Medical CenterNashvilleTNUSA
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32
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Sachs K, Sarver AL, Noble-Orcutt KE, LaRue RS, Antony ML, Chang D, Lee Y, Navis CM, Hillesheim AL, Nykaza IR, Ha NA, Hansen CJ, Karadag FK, Bergerson RJ, Verneris MR, Meredith MM, Schomaker ML, Linden MA, Myers CL, Largaespada DA, Sachs Z. Single-Cell Gene Expression Analyses Reveal Distinct Self-Renewing and Proliferating Subsets in the Leukemia Stem Cell Compartment in Acute Myeloid Leukemia. Cancer Res 2019; 80:458-470. [PMID: 31784425 DOI: 10.1158/0008-5472.can-18-2932] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 05/30/2019] [Accepted: 11/25/2019] [Indexed: 12/12/2022]
Abstract
Standard chemotherapy for acute myeloid leukemia (AML) targets proliferative cells and efficiently induces complete remission; however, many patients relapse and die of their disease. Relapse is caused by leukemia stem cells (LSC), the cells with self-renewal capacity. Self-renewal and proliferation are separate functions in normal hematopoietic stem cells (HSC) in steady-state conditions. If these functions are also separate functions in LSCs, then antiproliferative therapies may fail to target self-renewal, allowing for relapse. We investigated whether proliferation and self-renewal are separate functions in LSCs as they often are in HSCs. Distinct transcriptional profiles within LSCs of Mll-AF9/NRASG12V murine AML were identified using single-cell RNA sequencing. Single-cell qPCR revealed that these genes were also differentially expressed in primary human LSCs and normal human HSPCs. A smaller subset of these genes was upregulated in LSCs relative to HSPCs; this subset of genes constitutes "LSC-specific" genes in human AML. To assess the differences between these profiles, we identified cell surface markers, CD69 and CD36, whose genes were differentially expressed between these profiles. In vivo mouse reconstitution assays resealed that only CD69High LSCs were capable of self-renewal and were poorly proliferative. In contrast, CD36High LSCs were unable to transplant leukemia but were highly proliferative. These data demonstrate that the transcriptional foundations of self-renewal and proliferation are distinct in LSCs as they often are in normal stem cells and suggest that therapeutic strategies that target self-renewal, in addition to proliferation, are critical to prevent relapse and improve survival in AML. SIGNIFICANCE: These findings define and functionally validate a self-renewal gene profile of leukemia stem cells at the single-cell level and demonstrate that self-renewal and proliferation are distinct in AML. GRAPHICAL ABSTRACT: http://cancerres.aacrjournals.org/content/canres/80/3/458/F1.large.jpg.
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Affiliation(s)
- Karen Sachs
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Next Generation Analytics, Palo Alto, California
| | - Aaron L Sarver
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Klara E Noble-Orcutt
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Rebecca S LaRue
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Marie Lue Antony
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Daniel Chang
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Yoonkyu Lee
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
| | - Connor M Navis
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Alexandria L Hillesheim
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Ian R Nykaza
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Ngoc A Ha
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Conner J Hansen
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Fatma K Karadag
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Rachel J Bergerson
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Michael R Verneris
- Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Matthew M Meredith
- Molecular Lab, Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Matthew L Schomaker
- Molecular Lab, Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Michael A Linden
- Division of Hematopathology, Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota
| | - Chad L Myers
- Department of Computer Science and Engineering, University of Minnesota, Minneapolis, Minnesota
| | - David A Largaespada
- Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota.,Department of Pediatrics, University of Minnesota, Minneapolis, Minnesota
| | - Zohar Sachs
- Division of Hematology, Oncology, and Transplantation, Department of Medicine, University of Minnesota, Minneapolis, Minnesota. .,Masonic Cancer Center, University of Minnesota, Minneapolis, Minnesota
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33
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Dao FT, Yang L, Wang YZ, Chang Y, Jiang Q, Jiang H, Liu YR, Huang XJ, Qin YZ. [Characteristic and prognostic significance of leukemia stem cells associated antigens expressions in t (8;21) acute myeloid leukemia]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2019; 40:831-836. [PMID: 31775482 PMCID: PMC7364990 DOI: 10.3760/cma.j.issn.0253-2727.2019.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the characteristic and prognostic significance of leukemia stem cells associated antigens expressions including CD34, CD38, CD123, CD96 and TIM-3 in t (8;21) AML. Methods: Bone marrow samples of 47 t (8;21) AML patients were collected at diagnosis from October 2015 to April 2018 in Peking University Peoples' Hospital, then flow cytometry method was performed to detect the expression frequencies of CD34, CD38, CD123, CD96 and TIM-3 to analyze the relationship between leukemia stem cells associated antigens expressions and relapse. Results: Of 47 t (8;21) AML patients tested, the median percentages of CD34(+)CD38(-), CD34(+) CD38(-)CD123(+), CD34(+)CD38(-) CD96(+) and CD34(+) CD38(-) TIM-3(+) cells among nucleated cells were 2.37%, 0.24%, 0.27% and 0.06%, respectively. All the frequencies of CD34(+)CD38(-), CD34(+)CD38(-)CD123(+), CD34(+)CD38(-)CD96(+) and CD34(+) CD38(-)TIM-3(+) cells had no impact on the achievement of CR after the first course of induction. All higher frequencies of CD34(+)CD38(-), CD34(+)CD38(-)CD123(+), CD34(+)CD38(-)CD96(+) cells were related to higher 2-year CIR rate. Whereas, the frequency of CD34(+) CD38(-) TIM-3(+) cells had no impact on CIR rate. Both high frequency of CD34(+) CD38(-) cells and the high level of minimal residual diseases (patients with <3-log reduction in the RUNX1-RUNX1T1 transcript level after the second consolidation therapy) were independent poor prognostic factors of CIR[P=0.025, HR=6.9 (95%CI 1.3-37.4) ; P=0.031, HR=11.1 (95%CI 1.2-99.2) ]. Conclusion: Different leukemia stem cells associated antigens had distinct prognostic significance in t (8;21) AML. High frequencies of CD34(+) CD38(-), CD34(+) CD38(-) CD123(+) and CD34(+)CD38(-)CD96(+) cells at diagnosis predicted relapse in patients with t (8;21) AML.
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Affiliation(s)
- F T Dao
- Peking University Peoples'Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing 100044, China
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34
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Bill M, Papaioannou D, Karunasiri M, Kohlschmidt J, Pepe F, Walker CJ, Walker AE, Brannan Z, Pathmanathan A, Zhang X, Mrózek K, LaRocco A, Volinia S, Bloomfield CD, Garzon R, Dorrance AM. Expression and functional relevance of long non-coding RNAs in acute myeloid leukemia stem cells. Leukemia 2019; 33:2169-2182. [PMID: 30858548 DOI: 10.1038/s41375-019-0429-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 01/28/2019] [Accepted: 02/01/2019] [Indexed: 02/08/2023]
Abstract
In acute myeloid leukemia (AML), novel therapies are needed to target not only the rapidly dividing AML blasts but also the distinct population of leukemia stem cells (LSCs), which have abnormal self-renewal capacity and increased chemotherapy resistance. Elucidation of the expression and function of deregulated genes in LSCs is critical to specifically target LSCs and may consequently lead to improving outcomes of AML patients. Here, we correlated long non-coding RNA (lncRNA) expression profiles obtained from two RNA-seq datasets of 375 younger (aged <60 years) 76 older (≥60 years) adults with cytogenetically normal AML with a 'core enriched' (CE) gene expression signature (GES) associated with LSCs. We identified a LSC-specific signature of 111 lncRNAs that correlated strongly with the CE-GES. Among the top upregulated LSC-associated lncRNAs, we identified the lncRNA DANCR. Further experiments confirmed that DANCR is upregulated in functionally validated LSC-enriched populations. DANCR knock-down in LSCs resulted in decreased stem-cell renewal and quiescence. Furthermore, we showed that targeting Dancr in vivo using a primary murine model of AML (expressing both Mll partial tandem duplication/Flt3 internal tandem duplication) prolonged the survival of mice after serial transplantation. Our data suggest that LSCs have a distinct lncRNA signature with functional relevance and therapeutic potential.
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Affiliation(s)
- Marius Bill
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Malith Karunasiri
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | | | - Felice Pepe
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Allison E Walker
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Zachary Brannan
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | | | - Xiaoli Zhang
- Department of Biomedical Informatics, The Ohio State University, Columbus, OH, USA
| | - Krzysztof Mrózek
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Allison LaRocco
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
| | - Stefano Volinia
- Department of Morphology, Surgery and Experimental Medicine, University of Ferrara, Ferrara, Italy
| | - Clara D Bloomfield
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Ramiro Garzon
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA.
| | - Adrienne M Dorrance
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, USA.
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH, USA.
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35
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Bill M, Nicolet D, Kohlschmidt J, Walker CJ, Mrózek K, Eisfeld AK, Papaioannou D, Rong-Mullins X, Brannan Z, Kolitz JE, Powell BL, Archer KJ, Dorrance AM, Carroll AJ, Stone RM, Byrd JC, Garzon R, Bloomfield CD. Mutations associated with a 17-gene leukemia stem cell score and the score's prognostic relevance in the context of the European LeukemiaNet classification of acute myeloid leukemia. Haematologica 2019; 105:721-729. [PMID: 31413100 PMCID: PMC7049376 DOI: 10.3324/haematol.2019.225003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 08/13/2019] [Indexed: 02/06/2023] Open
Abstract
Leukemia stem cells (LSC) are more resistant to standard chemotherapy and their persistence during remission can cause relapse, which is still one of the major clinical challenges in the treatment of acute myeloid leukemia (AML). A better understanding of the mutational patterns and the prognostic impact of molecular markers associated with stemness could lead to better clinical management and improve patients’ outcomes. We applied a previously described 17-gene expression score comprising genes differently expressed between LSC and leukemic bulk blasts, for 934 adult patients with de novo AML, and studied associations of the 17-gene LSC score with clinical data and mutation status of 81 genes recurrently mutated in cancer and leukemia. We found that patients with a high 17-gene score were older and had more mutations. The 17-gene score was found to have a prognostic impact in both younger (aged <60 years) and older (aged ≥60 years) patients with AML. We also analyzed the 17-gene LSC score in the context of the 2017 European LeukemiaNet genetic-risk classification and found that for younger patients the score refined the classification, and identified patients currently classified in the European LeukemiaNet Favorable-risk category who had a worse outcome.
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Affiliation(s)
- Marius Bill
- The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | - Deedra Nicolet
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,Alliance Statistics and Data Center, The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | - Jessica Kohlschmidt
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,Alliance Statistics and Data Center, The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | | | - Krzysztof Mrózek
- The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | | | | | | | - Zachary Brannan
- The Ohio State University Comprehensive Cancer Center, Columbus, OH
| | - Jonathan E Kolitz
- Monter Cancer Center, Hofstra Northwell School of Medicine, Lake Success, NY
| | - Bayard L Powell
- Comprehensive Cancer Center of Wake Forest University, Winston-Salem, NC
| | - Kellie J Archer
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,College of Public Health, The Ohio State University, Columbus, OH
| | - Adrienne M Dorrance
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
| | - Andrew J Carroll
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL
| | - Richard M Stone
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | - John C Byrd
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
| | - Ramiro Garzon
- The Ohio State University Comprehensive Cancer Center, Columbus, OH.,Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
| | - Clara D Bloomfield
- The Ohio State University Comprehensive Cancer Center, Columbus, OH .,Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, OH
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36
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Aqaqe N, Yassin M, Yassin AA, Ershaid N, Katz-Even C, Zipin-Roitman A, Kugler E, Lechman ER, Gan OI, Mitchell A, Dick JE, Izraeli S, Milyavsky M. An ERG Enhancer-Based Reporter Identifies Leukemia Cells with Elevated Leukemogenic Potential Driven by ERG-USP9X Feed-Forward Regulation. Cancer Res 2019; 79:3862-3876. [PMID: 31175119 DOI: 10.1158/0008-5472.can-18-3215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Revised: 03/21/2019] [Accepted: 06/04/2019] [Indexed: 11/16/2022]
Abstract
Acute leukemia is a rapidly progressing blood cancer with low survival rates. Unfavorable prognosis is attributed to insufficiently characterized subpopulations of leukemia stem cells (LSC) that drive chemoresistance and leukemia relapse. Here we utilized a genetic reporter that assesses stemness to enrich and functionally characterize LSCs. We observed heterogeneous activity of the ERG+85 enhancer-based fluorescent reporter in human leukemias. Cells with high reporter activity (tagBFPHigh) exhibited elevated expression of stemness and chemoresistance genes and demonstrated increased clonogenicity and resistance to chemo- and radiotherapy as compared with their tagBFPNeg counterparts. The tagBFPHigh fraction was capable of regenerating the original cellular heterogeneity and demonstrated increased invasive ability. Moreover, the tagBFPHigh fraction was enriched for leukemia-initiating cells in a xenograft assay. We identified the ubiquitin hydrolase USP9X as a novel ERG transcriptional target that sustains ERG+85-positive cells by controlling ERG ubiquitination. Therapeutic targeting of USP9X led to preferential inhibition of the ERG-dependent leukemias. Collectively, these results characterize human leukemia cell functional heterogeneity and suggest that targeting ERG via USP9X inhibition may be a potential treatment strategy in patients with leukemia. SIGNIFICANCE: This study couples a novel experimental tool with state-of-the-art approaches to delineate molecular mechanisms underlying stem cell-related characteristics in leukemia cells.
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Affiliation(s)
- Nasma Aqaqe
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Muhammad Yassin
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Abed Alkader Yassin
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nour Ershaid
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Chen Katz-Even
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Adi Zipin-Roitman
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eitan Kugler
- Department of Pediatric Hemato-Oncology, Schneider Children Medical Center Petah-Tikva, Israel.,The Gene Development and Environment Pediatric Research Institute, Pediatric Hemato-Oncology, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.,Department of Molecular Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eric R Lechman
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Olga I Gan
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Amanda Mitchell
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - John E Dick
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada
| | - Shai Izraeli
- Department of Pediatric Hemato-Oncology, Schneider Children Medical Center Petah-Tikva, Israel.,The Gene Development and Environment Pediatric Research Institute, Pediatric Hemato-Oncology, Edmond and Lily Safra Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.,Department of Molecular Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Michael Milyavsky
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
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37
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Loew A, Köhnke T, Rehbeil E, Pietzner A, Weylandt KH. A Role for Lipid Mediators in Acute Myeloid Leukemia. Int J Mol Sci 2019; 20:ijms20102425. [PMID: 31100828 PMCID: PMC6567850 DOI: 10.3390/ijms20102425] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 05/05/2019] [Accepted: 05/06/2019] [Indexed: 12/14/2022] Open
Abstract
In spite of therapeutic improvements in the treatment of different hematologic malignancies, the prognosis of acute myeloid leukemia (AML) treated solely with conventional induction and consolidation chemotherapy remains poor, especially in association with high risk chromosomal or molecular aberrations. Recent discoveries describe the complex interaction of immune effector cells, as well as the role of the bone marrow microenvironment in the development, maintenance and progression of AML. Lipids, and in particular omega-3 as well as omega-6 polyunsaturated fatty acids (PUFAs) have been shown to play a vital role as signaling molecules of immune processes in numerous benign and malignant conditions. While the majority of research in cancer has been focused on the role of lipid mediators in solid tumors, some data are showing their involvement also in hematologic malignancies. There is a considerable amount of evidence that AML cells are targetable by innate and adaptive immune mechanisms, paving the way for immune therapy approaches in AML. In this article we review the current data showing the lipid mediator and lipidome patterns in AML and their potential links to immune mechanisms.
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MESH Headings
- Adaptive Immunity/drug effects
- Bone Marrow
- Disease Progression
- Fatty Acids, Omega-3/immunology
- Fatty Acids, Omega-3/therapeutic use
- Fatty Acids, Omega-6/immunology
- Fatty Acids, Omega-6/therapeutic use
- Fatty Acids, Unsaturated
- Hematologic Neoplasms/drug therapy
- Hematopoiesis
- Humans
- Immunity, Innate/drug effects
- Immunotherapy
- Inflammation
- Leukemia, Myeloid, Acute/drug therapy
- Leukemia, Myeloid, Acute/immunology
- Lipids/immunology
- Lipids/therapeutic use
- Neoplasms/drug therapy
- Prognosis
- Tumor Microenvironment
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Affiliation(s)
- Andreas Loew
- Department of Medicine B, Ruppin General Hospital, Brandenburg Medical School, 16816 Neuruppin, Germany.
| | - Thomas Köhnke
- Department of Internal Medicine III, University of Munich, 81377 Munich, Germany.
| | - Emma Rehbeil
- Department of Medicine B, Ruppin General Hospital, Brandenburg Medical School, 16816 Neuruppin, Germany.
| | - Anne Pietzner
- Department of Medicine B, Ruppin General Hospital, Brandenburg Medical School, 16816 Neuruppin, Germany.
| | - Karsten-H Weylandt
- Department of Medicine B, Ruppin General Hospital, Brandenburg Medical School, 16816 Neuruppin, Germany.
- Medical Department, Campus Virchow Klinikum, Charité-Universitätsmedizin Berlin, 13353 Berlin, Germany.
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38
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Marcucci F, Caserta CA, Romeo E, Rumio C. Antibody-Drug Conjugates (ADC) Against Cancer Stem-Like Cells (CSC)-Is There Still Room for Optimism? Front Oncol 2019; 9:167. [PMID: 30984612 PMCID: PMC6449442 DOI: 10.3389/fonc.2019.00167] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 02/25/2019] [Indexed: 01/06/2023] Open
Abstract
Cancer stem-like cells (CSC) represent a subpopulation of tumor cells with peculiar functionalities that distinguish them from the bulk of tumor cells, most notably their tumor-initiating potential and drug resistance. Given these properties, it appears logical that CSCs have become an important target for many pharma companies. Antibody-drug conjugates (ADC) have emerged over the last decade as one of the most promising new tools for the selective ablation of tumor cells. Three ADCs have already received regulatory approval and many others are in different phases of clinical development. Not surprisingly, also a considerable number of anti-CSC ADCs have been described in the literature and some of these have entered clinical development. Several of these ADCs, however, have yielded disappointing results in clinical studies. This is similar to the results obtained with other anti-CSC drug candidates, including native antibodies, that have been investigated in the clinic. In this article we review the anti-CSC ADCs that have been described in the literature and, in the following, we discuss reasons that may underlie the failures in clinical trials that have been observed. Possible reasons relate to the biology of CSCs themselves, including their heterogeneity, the lack of strictly CSC-specific markers, and the capacity to interconvert between CSCs and non-CSCs; second, inherent limitations of some classes of cytotoxins that have been used for the construction of ADCs; third, the inadequacy of animal models in predicting efficacy in humans. We conclude suggesting some possibilities to address these limitations.
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Affiliation(s)
- Fabrizio Marcucci
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | | | | | - Cristiano Rumio
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
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39
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Wang X, Gao M, Zhang J, Ma Y, Qu W, Liang J, Wu H, Wen H. Peperomin E and its orally bioavailable analog induce oxidative stress-mediated apoptosis of acute myeloid leukemia progenitor cells by targeting thioredoxin reductase. Redox Biol 2019; 24:101153. [PMID: 30909158 PMCID: PMC6434189 DOI: 10.1016/j.redox.2019.101153] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 02/18/2019] [Accepted: 02/26/2019] [Indexed: 01/03/2023] Open
Abstract
The early immature CD34+ acute myeloid leukemia (AML) cell subpopulation-acute myeloid leukemia progenitor cells (APCs), is often resistant to conventional chemotherapy, making them largely responsible for the relapse of AML. However, to date, the eradication of APCs remains a major challenge. We previously reported a naturally occurring secolignan- Peperomin E (PepE) and its analog 6-methyl (hydroxyethyl) amino-2, 6-dihydropeperomin E (DMAPE) that selectively target and induce oxidative stress-mediated apoptosis in KG-1a CD34+ cells (an APCs-like cell line) in vitro. We therefore further evaluated the efficacy and the mechanism of action of these compounds in this study. We found that PepE and DMAPE have similar potential to eliminate primary APCs, with no substantial toxicities to the normal cells in vitro and in vivo. Mechanistically, these agents selectively inhibit TrxR1, an antioxidant enzyme aberrantly expressed in APCs, by covalently binding to its selenocysteine residue at the C-terminal redox center. TrxR1 inhibition mediated by PepE (DMAPE) leads to the formation of cellular selenium compromised thioredoxin reductase-derived apoptotic protein (SecTRAP), oxidation of Trx, induction of oxidative stress and finally activation of apoptosis of APCs. Our results demonstrate a potential anti-APCs molecular target – TrxR1 and provide valuable insights into the mechanism underlying PepE (DMAPE)-induced cytotoxicity of APCs, and support the further preclinical investigations on PepE (DMAPE)-related therapies for the treatment of relapsed AML.
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Affiliation(s)
- Xinzhi Wang
- School of Pharmacy, Nanjing University of Chinese Medicine, Xianlin Avenue No. 138, Nanjing 210023, People's Republic of China.
| | - Ming Gao
- School of Pharmacy, Nanjing University of Chinese Medicine, Xianlin Avenue No. 138, Nanjing 210023, People's Republic of China
| | - Jiyun Zhang
- School of Pharmacy, Nanjing University of Chinese Medicine, Xianlin Avenue No. 138, Nanjing 210023, People's Republic of China
| | - Ying Ma
- Nanjing University of Science and Technology Hospital, Nanjing University of Science and Technology, Xiaolinwei Lane No. 200, Nanjing 210094, People's Republic of China
| | - Wenshu Qu
- People's Liberation Army Cancer Center, Nanjing Bayi Hospital, Yanggongjing Street No. 34, Nanjing 210002, People's Republic of China
| | - Jingyu Liang
- Department of Natural Medicinal Chemistry, China Pharmaceutical University, Tongjia Lane No.24, Nanjing 210009, People's Republic of China
| | - Hao Wu
- School of Pharmacy, Nanjing University of Chinese Medicine, Xianlin Avenue No. 138, Nanjing 210023, People's Republic of China
| | - Hongmei Wen
- School of Pharmacy, Nanjing University of Chinese Medicine, Xianlin Avenue No. 138, Nanjing 210023, People's Republic of China.
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40
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Yassin M, Aqaqe N, Yassin AA, van Galen P, Kugler E, Bernstein BE, Koren-Michowitz M, Canaani J, Nagler A, Lechman ER, Dick JE, Wienholds E, Izraeli S, Milyavsky M. A novel method for detecting the cellular stemness state in normal and leukemic human hematopoietic cells can predict disease outcome and drug sensitivity. Leukemia 2019; 33:2061-2077. [PMID: 30705411 DOI: 10.1038/s41375-019-0386-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 12/02/2018] [Accepted: 12/20/2018] [Indexed: 02/06/2023]
Abstract
Acute leukemia is an aggressive blood malignancy with low survival rates. A high expression of stem-like programs in leukemias predicts poor prognosis and is assumed to act in an aberrant fashion in the phenotypically heterogeneous leukemia stem cell (LSC) population. A lack of suitable genome engineering tools that can isolate LSCs based on their stemness precludes their comprehensive examination and full characterization. We hypothesized that tagging endogenous stemness-regulatory regions could generate a genome reporter for the putative leukemia stemness-state. Our analysis revealed that the ERG + 85 enhancer region can serve as a marker for stemness-state and a fluorescent lentiviral reporter was developed that can accurately recapitulate the endogenous activity. Using our novel reporter, we revealed cellular heterogeneity in several leukemia cell lines and patient-derived samples. Alterations in reporter activity were associated with transcriptomic and functional changes that were closely related to the hematopoietic stem cell (HSC) identity. Notably, the differentiation potential was skewed towards the erythro-megakaryocytic lineage. Moreover, an ERG + 85High fraction of AML cells could regenerate the original cellular heterogeneity and was enriched for LSCs. RNA-seq analysis coupled with in silico drug-screen analysis identified 4HPR as an effective inhibitor of ERG + 85High leukemia growth. We propose that further utilization of our novel molecular tool will identify crucial determinants of LSCs, thus providing a rationale for their therapeutic targeting.
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Affiliation(s)
- Muhammad Yassin
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Nasma Aqaqe
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Abed Alkader Yassin
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Peter van Galen
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, 02114, USA
| | - Eitan Kugler
- Department of Pediatric Hemato-Oncology, Schneider Children Medical Center, Petah Tikva, Israel.,The Gene Development and Environment Pediatric Research Institute, Pediatric Hemato-Oncology, Edmond and Lily Safra Children's Hospital, Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.,Department of Molecular Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Bradley E Bernstein
- Center for Cancer Research, Massachusetts General Hospital, Boston, MA, 02114, USA
| | | | - Jonathan Canaani
- Hematology Division, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Arnon Nagler
- Hematology Division, Chaim Sheba Medical Center, Tel-Hashomer, Israel
| | - Eric R Lechman
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - John E Dick
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Erno Wienholds
- Princess Margaret Cancer Centre, University Health Network and Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Shai Izraeli
- Department of Pediatric Hemato-Oncology, Schneider Children Medical Center, Petah Tikva, Israel.,The Gene Development and Environment Pediatric Research Institute, Pediatric Hemato-Oncology, Edmond and Lily Safra Children's Hospital, Chaim Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel.,Department of Molecular Human Genetics and Biochemistry, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel
| | - Michael Milyavsky
- Department of Pathology, Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv-Yafo, Israel.
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41
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Zhang W, Wang G, Liang A. DNA Damage Response in Quiescent Hematopoietic Stem Cells and Leukemia Stem Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1143:147-171. [PMID: 31338819 DOI: 10.1007/978-981-13-7342-8_7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In humans, hematopoietic stem cells (HSCs) adopt unique responsive pathways counteracting with the DNA-damaging assaults to weigh the balance between the maintenance of normal stem cell poor for whole-life blood regeneration and the transformation to leukemia stem cells (LSCs) for leukemia initiation. LSCs also take actions of combating with the attack launched by externally therapeutic drugs that can kill most leukemic cells, to avoid extermination and promote disease relapse. Therefore, the collection of knowledge about all these underlined mechanisms would present a preponderance for later studies. In this chapter, the universal DNA damage response (DDR) mechanisms were firstly introduced, and then DDR of HSCs were presented focusing on the DNA double-strand breaks in the quiescent state of HSCs, which poses a big advantage in promoting its transformation into preleukemic HSCs. Lastly, the DDR of LSCs were summarized based on the major outcomes triggered by different pathways in specific leukemia, upon which some aspects for future investigations were envisioned under our currently limited scope of knowledge.
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Affiliation(s)
- Wenjun Zhang
- Department of Hematology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Guangming Wang
- Department of Hematology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China
| | - Aibin Liang
- Department of Hematology, Tongji Hospital, Tongji University School of Medicine, Shanghai, China.
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42
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Kageyama Y, Miwa H, Arakawa R, Tawara I, Ohishi K, Masuya M, Nakase K, Katayama N. Expression of CD25 fluctuates in the leukemia-initiating cell population of CD25-positive AML. PLoS One 2018; 13:e0209295. [PMID: 30550585 PMCID: PMC6294374 DOI: 10.1371/journal.pone.0209295] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 12/03/2018] [Indexed: 11/19/2022] Open
Abstract
CD25 is expressed on leukemic cells in 10–20% cases of acute myeloid leukemia (AML), and its expression is associated with poor prognosis. We reevaluated the relationship between CD25 expression and the leukemia-initiating cell (LIC) properties of AML using a patient-derived xenograft model. We divided lineage marker-negative (Lin–) CD34+CD38– or Lin–CD34+ cells from CD25-positive AML into CD25-positive and -negative populations, and then transplanted each population into NOD.Cg-PrkdcscidIl2rgtm1Wjl/Sz mice. Leukemic engraftment was observed with both CD25-positive and -negative populations from three of nine CD25-positive AML patients. In two of those three patients, CD25-positive and -negative Lin–CD34+ cells engrafted at the primary transplantation led to leukemic engraftment at the secondary transplantation, in which engrafted cells contained both CD25-positive and -negative Lin–CD34+ AML cells. In an in vitro culture system, expression of CD25 was considerably induced in the CD25-negative population of Lin–CD34+ cells from two cases of CD25-positive AML. In one case, CD25-positive Lin–CD34+ cells gave rise to CD25-negative as well as -positive CD34+ cells. These observations suggest that there exist CD25-positive and -negative populations that can reconstitute CD25-positive AML in a patient-derived xenograft model, and that CD25 expression fluctuates in the LICs of AML.
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Affiliation(s)
- Yuki Kageyama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Hiroshi Miwa
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Rino Arakawa
- School of Medicine, Mie University, Tsu, Mie, Japan
| | - Isao Tawara
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | - Kohshi Ohishi
- Department of Transfusion Medicine and Cell Therapy, Mie University Hospital, Tsu, Mie, Japan
| | - Masahiro Masuya
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
| | | | - Naoyuki Katayama
- Department of Hematology and Oncology, Mie University Graduate School of Medicine, Tsu, Mie, Japan
- * E-mail:
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43
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Senft D, Jeremias I. A rare subgroup of leukemia stem cells harbors relapse-inducing potential in acute lymphoblastic leukemia. Exp Hematol 2018; 69:1-10. [PMID: 30261200 DOI: 10.1016/j.exphem.2018.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 09/10/2018] [Accepted: 09/18/2018] [Indexed: 01/08/2023]
Abstract
After initially successful chemotherapy, relapse frequently jeopardizes the outcome of patients with acute leukemia. Because of their adverse characteristics of self-renewal and dormancy, leukemia stem cells have been hypothesized to play a critical role in resistance to antiproliferative chemotherapy and the development of relapse. The high abundance of stem-like cells in acute lymphoblastic leukemia (ALL), however, suggests that not all leukemia-initiating cells carry these adverse characteristics, complicating the biological characterization of relapse-inducing cells in this malignancy. Here, we review sources of therapy resistance and relapse in acute leukemias, which include tumor cell plasticity and reversible characteristics. We discuss the development of patient-derived mouse models that are genetically engineered to mimic long-term dormancy and minimal residual disease in patients. These models allow the tracking and functional characterization of patient-derived ALL blasts that combine the properties of long-term dormancy, treatment resistance, and stemness. Finally, we discuss possible therapeutic avenues to target the functional plasticity of leukemia-initiating cells in ALL.
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Affiliation(s)
- Daniela Senft
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, German Center for Environmental Health (HMGU), Munich, Germany
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, German Center for Environmental Health (HMGU), Munich, Germany; Department of Pediatrics, Dr. von Hauner Childrens Hospital, Ludwig Maximilians University, Munich, Germany; German Consortium for Translational Cancer Research (DKTK), Partnering Site Munich, Munich, Germany.
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44
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Stevens BM, Khan N, D'Alessandro A, Nemkov T, Winters A, Jones CL, Zhang W, Pollyea DA, Jordan CT. Characterization and targeting of malignant stem cells in patients with advanced myelodysplastic syndromes. Nat Commun 2018; 9:3694. [PMID: 30209285 PMCID: PMC6135858 DOI: 10.1038/s41467-018-05984-x] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Accepted: 07/26/2018] [Indexed: 12/21/2022] Open
Abstract
Myelodysplastic syndrome (MDS) is a chronic hematologic disorder that frequently evolves to more aggressive stages and in some cases leads to acute myeloid leukemia (AML). MDS arises from mutations in hematopoietic stem cells (HSCs). Thus, to define optimal therapies, it is essential to understand molecular events driving HSC pathogenesis. In this study, we report that during evolution of MDS, malignant HSCs activate distinct cellular programs that render such cells susceptible to therapeutic intervention. Specifically, metabolic analyses of the MDS stem cell compartment show a profound activation of protein synthesis machinery and increased oxidative phosphorylation. Pharmacological targeting of protein synthesis and oxidative phosphorylation demonstrated potent and selective eradication of MDS stem cells in primary human patient specimens. Taken together, our findings indicate that MDS stem cells are reliant on specific metabolic events and that such properties can be targeted prior to the onset of clinically significant AML, during antecedent MDS.
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Affiliation(s)
- Brett M Stevens
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Nabilah Khan
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Travis Nemkov
- Department of Biochemistry and Molecular Genetics, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Amanda Winters
- Department of Pediatrics, University of Colorado Denver, Aurora, CO, 80045, USA
| | - Courtney L Jones
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Wei Zhang
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Daniel A Pollyea
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA
| | - Craig T Jordan
- Division of Hematology, Department of Medicine, University of Colorado School of Medicine, Aurora, CO, 80045, USA.
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45
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Anti-thymocyte globulin’s activity against acute myeloid leukemia stem cells. Bone Marrow Transplant 2018; 54:549-559. [DOI: 10.1038/s41409-018-0296-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Revised: 07/19/2018] [Accepted: 07/21/2018] [Indexed: 01/22/2023]
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46
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Gholipour N, Ohradanova‐Repic A, Ahangari G. A novel report of MiR‐4301 induces cell apoptosis by negatively regulating
DRD2
expression in human breast cancer cells. J Cell Biochem 2018; 119:6408-6417. [DOI: 10.1002/jcb.26577] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 12/07/2017] [Indexed: 02/06/2023]
Affiliation(s)
- Naghmeh Gholipour
- Department of Medical GeneticsNational Institute of Genetic Engineering and Biotechnology (NIGEB)TehranIran
| | - Anna Ohradanova‐Repic
- Institute for Hygiene and Applied ImmunologyCenter for Pathophysiology, Infectiology, and ImmunologyMedical University of ViennaMolecular Immunology UnitViennaAustria
| | - Ghasem Ahangari
- Department of Medical GeneticsNational Institute of Genetic Engineering and Biotechnology (NIGEB)TehranIran
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47
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Roney MSI, Park SK. Antipsychotic dopamine receptor antagonists, cancer, and cancer stem cells. Arch Pharm Res 2018; 41:384-408. [PMID: 29556831 DOI: 10.1007/s12272-018-1017-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Accepted: 02/27/2018] [Indexed: 12/12/2022]
Abstract
Cancer is one of the deadliest diseases in the world. Despite extensive studies, treating metastatic cancers remains challenging. Years of research have linked a rare set of cells known as cancer stem cells (CSCs) to drug resistance, leading to the suggestion that eradication of CSCs might be an effective therapeutic strategy. However, few drug candidates are active against CSCs. New drug discovery is often a lengthy process. Drug screening has been advantageous in identifying drug candidates. Current understanding of cancer biology has revealed various clues to target cancer from different points of view. Many studies have found dopamine receptors (DRs) in various cancers. Therefore, DR antagonists have attracted a lot of attention in cancer research. Recently, a group of antipsychotic DR antagonists has been demonstrated to possess remarkable abilities to restrain and sensitize CSCs to existing chemotherapeutics by a process called differentiation approach. In this review, we will describe current aspects of CSC-targeting therapeutics, antipsychotic DR antagonists, and their extraordinary abilities to fight cancer.
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Affiliation(s)
- Md Saiful Islam Roney
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, Republic of Korea
| | - Song-Kyu Park
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong, 30019, Republic of Korea.
- Research Driven Hospital, Korea University Guro Hospital, Biomedical Research Center, Seoul, 08308, Republic of Korea.
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48
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Saint-Paul L, Nguyen CH, Buffière A, Pais de Barros JP, Hammann A, Landras-Guetta C, Filomenko R, Chrétien ML, Johnson P, Bastie JN, Delva L, Quéré R. CD45 phosphatase is crucial for human and murine acute myeloid leukemia maintenance through its localization in lipid rafts. Oncotarget 2018; 7:64785-64797. [PMID: 27579617 PMCID: PMC5323116 DOI: 10.18632/oncotarget.11622] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 08/20/2016] [Indexed: 01/19/2023] Open
Abstract
CD45 is a pan-leukocyte protein with tyrosine phosphatase activity involved in the regulation of signal transduction in hematopoiesis. Exploiting CD45 KO mice and lentiviral shRNA, we prove the crucial role that CD45 plays in acute myeloid leukemia (AML) development and maintenance. We discovered that CD45 does not colocalize with lipid rafts on murine and human non-transformed hematopoietic cells. Using a mouse model, we proved that CD45 positioning within lipid rafts is modified during their oncogenic transformation to AML. CD45 colocalized with lipid rafts on AML cells, which contributes to elevated GM-CSF signal intensity involved in proliferation of leukemic cells. We furthermore proved that the GM-CSF/Lyn/Stat3 pathway that contributes to growth of leukemic cells could be profoundly affected, by using a new plasma membrane disrupting agent, which rapidly delocalized CD45 away from lipid rafts. We provide evidence that this mechanism is also effective on human primary AML samples and xenograft transplantation. In conclusion, this study highlights the emerging evidence of the involvement of lipid rafts in oncogenic development of AML and the targeting of CD45 positioning among lipid rafts as a new strategy in the treatment of AML.
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Affiliation(s)
- Laetitia Saint-Paul
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France
| | - Chi-Hung Nguyen
- Institut Curie, PSL Research University, UMR9187-U1196, CNRS-Institut Curie, Inserm, Centre Universitaire, Orsay, France
| | - Anne Buffière
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France
| | - Jean-Paul Pais de Barros
- LipSTIC Labex, Dijon, France.,Plateforme de lipidomique, Université Bourgogne-Franche-Comté, Dijon, France
| | - Arlette Hammann
- Plateforme de cytométrie, Université Bourgogne-Franche-Comté, Dijon, France
| | - Corinne Landras-Guetta
- Institut Curie, PSL Research University, UMR9187-U1196, CNRS-Institut Curie, Inserm, Centre Universitaire, Orsay, France
| | | | - Marie-Lorraine Chrétien
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France.,Hôpital Universitaire François-Mitterrand, Service d'Hématologie Clinique, Dijon, France
| | - Pauline Johnson
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jean-Noël Bastie
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France.,Hôpital Universitaire François-Mitterrand, Service d'Hématologie Clinique, Dijon, France
| | - Laurent Delva
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France
| | - Ronan Quéré
- Inserm UMR866, Université Bourgogne-Franche-Comté, Dijon, France.,LipSTIC Labex, Dijon, France
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49
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Yu N, Seedhouse C, Russell N, Pallis M. Quantitative assessment of the sensitivity of dormant AML cells to the BAD mimetics ABT-199 and ABT-737. Leuk Lymphoma 2018; 59:2447-2453. [PMID: 29431553 DOI: 10.1080/10428194.2018.1434884] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Cells from patients with acute myeloid leukemia (AML) that remain dormant and protected by stromal cells may escape effects of chemotherapy. We modeled dormancy in vitro and investigated the ability of Bcl-2 inhibitors ABT-199 and ABT-737 to overcome chemoprotection of dormant cells. CD34-enriched primary AML cells with aberrant leukemia-associated phenotypes (LAPs) were cultured on stromal cells. The chemosensitivity of dormant (PKH26high), CD34+, LAP+ cells was ascertained by 5-colour flow cytometric counting after 12 d. The PKH26high, CD34+, LAP + subset retained clonogenic capacity. The dormant fraction was completely resistant to Ara-C (p = .007). However, ABT-199 and ABT-737 were able to reduce the dormant fraction by 84% and 80%, respectively, of their effects on proliferating counterparts. In conclusion, we have elaborated a system for quantifying chemosensitivity in LAP+ dormant leukemia cells, thought to contribute to disease relapse, and shown sensitivity of dormant LAP+ cells to ABT-199 and ABT-737 in this system.
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Affiliation(s)
- Ning Yu
- a Department of Haematology , University of Nottingham , Nottingham , UK
| | - Claire Seedhouse
- a Department of Haematology , University of Nottingham , Nottingham , UK
| | - Nigel Russell
- a Department of Haematology , University of Nottingham , Nottingham , UK.,b Centre for Clinical Haematology , Nottingham University Hospitals , Nottingham , UK
| | - Monica Pallis
- b Centre for Clinical Haematology , Nottingham University Hospitals , Nottingham , UK
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50
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Walter C, Pozzorini C, Reinhardt K, Geffers R, Xu Z, Reinhardt D, von Neuhoff N, Hanenberg H. Single-cell whole exome and targeted sequencing in NPM1/FLT3 positive pediatric acute myeloid leukemia. Pediatr Blood Cancer 2018; 65. [PMID: 29090521 DOI: 10.1002/pbc.26848] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 09/11/2017] [Indexed: 12/19/2022]
Abstract
BACKGROUND The small portion of leukemic stem cells (LSCs) in acute myeloid leukemia (AML) present in children and adolescents is often masked by the high background of AML blasts and normal hematopoietic cells. The aim of the current study was to establish a simple workflow for reliable genetic analysis of single LSC-enriched blasts from pediatric patients. PROCEDURE For three AMLs with mutations in nucleophosmin 1 and/or fms-like tyrosine kinase 3, we performed whole genome amplification on sorted single-cell DNA followed by whole exome sequencing (WES). The corresponding bulk bone marrow DNAs were also analyzed by WES and by targeted sequencing (TS) that included 54 genes associated with myeloid malignancies. RESULTS Analysis revealed that read coverage statistics were comparable between single-cell and bulk WES data, indicating high-quality whole genome amplification. From 102 single-cell variants, 72 single nucleotide variants and insertions or deletions (70%) were consistently found in the two bulk DNA analyses. Variants reliably detected in single cells were also present in TS. However, initial screening by WES with read counts between 50-72× failed to detect rare AML subclones in the bulk DNAs. CONCLUSIONS In summary, our study demonstrated that single-cell WES combined with bulk DNA TS is a promising tool set for detecting AML subclones and possibly LSCs.
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Affiliation(s)
- Christiane Walter
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | | | - Katarina Reinhardt
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Robert Geffers
- Genome Analytics, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Zhenyu Xu
- Sophia Genetics Inc., Saint-Sulpice, Switzerland
| | - Dirk Reinhardt
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Nils von Neuhoff
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Helmut Hanenberg
- Department of Pediatrics III, University Children's Hospital Essen, University of Duisburg-Essen, Essen, Germany
- Department of Otorhinolaryngology and Head/Neck Surgery (ENT), Heinrich Heine University, Düsseldorf, Germany
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