1
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Niibori-Nambu A, Wang CQ, Chin DWL, Chooi JY, Hosoi H, Sonoki T, Tham CY, Nah GSS, Cirovic B, Tan DQ, Takizawa H, Sashida G, Goh Y, Tng J, Fam WN, Fullwood MJ, Suda T, Yang H, Tergaonkar V, Taniuchi I, Li S, Chng WJ, Osato M. Integrin-α9 overexpression underlies the niche-independent maintenance of leukemia stem cells in acute myeloid leukemia. Gene 2024; 928:148761. [PMID: 39002785 DOI: 10.1016/j.gene.2024.148761] [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: 04/13/2024] [Revised: 06/16/2024] [Accepted: 07/10/2024] [Indexed: 07/15/2024]
Abstract
Leukemia stem cells (LSCs) are widely believed to reside in well-characterized bone marrow (BM) niches; however, the capacity of the BM niches to accommodate LSCs is insufficient, and a significant proportion of LSCs are instead maintained in regions outside the BM. The molecular basis for this niche-independent behavior of LSCs remains elusive. Here, we show that integrin-α9 overexpression (ITGA9 OE) plays a pivotal role in the extramedullary maintenance of LSCs by molecularly mimicking the niche-interacting status, through the binding with its soluble ligand, osteopontin (OPN). Retroviral insertional mutagenesis conducted on leukemia-prone Runx-deficient mice identified Itga9 OE as a novel leukemogenic event. Itga9 OE activates Akt and p38MAPK signaling pathways. The elevated Myc expression subsequently enhances ribosomal biogenesis to overcome the cell integrity defect caused by the preexisting Runx alteration. The Itga9-Myc axis, originally discovered in mice, was further confirmed in multiple human acute myeloid leukemia (AML) subtypes, other than RUNX leukemias. In addition, ITGA9 was shown to be a functional LSC marker of the best prognostic value among 14 known LSC markers tested. Notably, the binding of ITGA9 with soluble OPN, a known negative regulator against HSC activation, induced LSC dormancy, while the disruption of ITGA9-soluble OPN interaction caused rapid cell propagation. These findings suggest that the ITGA9 OE increases both actively proliferating leukemia cells and dormant LSCs in a well-balanced manner, thereby maintaining LSCs. The ITGA9 OE would serve as a novel therapeutic target in AML.
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Affiliation(s)
- Akiko Niibori-Nambu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Department of Tumor Genetics and Biology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Chelsia Qiuxia Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore; Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Desmond Wai Loon Chin
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jing Yuan Chooi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hiroki Hosoi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
| | - Takashi Sonoki
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
| | - Cheng-Yong Tham
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Giselle Sek Suan Nah
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Branko Cirovic
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Darren Qiancheng Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hitoshi Takizawa
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Goro Sashida
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yufen Goh
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jiaqi Tng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Wee Nih Fam
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Melissa Jane Fullwood
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Toshio Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Hematology, Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Vinay Tergaonkar
- Laboratory of NFκB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Shang Li
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore
| | - Wee Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; National University Cancer Institute, Singapore; National University Health System, Singapore.
| | - Motomi Osato
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan; Department of General Internal Medicine, Kumamoto Kenhoku Hospital, Kumamoto, Japan.
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2
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Zarou MM, Rattigan KM, Sarnello D, Shokry E, Dawson A, Ianniciello A, Dunn K, Copland M, Sumpton D, Vazquez A, Helgason GV. Inhibition of mitochondrial folate metabolism drives differentiation through mTORC1 mediated purine sensing. Nat Commun 2024; 15:1931. [PMID: 38431691 PMCID: PMC10908830 DOI: 10.1038/s41467-024-46114-0] [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: 01/12/2023] [Accepted: 02/07/2024] [Indexed: 03/05/2024] Open
Abstract
Supporting cell proliferation through nucleotide biosynthesis is an essential requirement for cancer cells. Hence, inhibition of folate-mediated one carbon (1C) metabolism, which is required for nucleotide synthesis, has been successfully exploited in anti-cancer therapy. Here, we reveal that mitochondrial folate metabolism is upregulated in patient-derived leukaemic stem cells (LSCs). We demonstrate that inhibition of mitochondrial 1C metabolism through impairment of de novo purine synthesis has a cytostatic effect on chronic myeloid leukaemia (CML) cells. Consequently, changes in purine nucleotide levels lead to activation of AMPK signalling and suppression of mTORC1 activity. Notably, suppression of mitochondrial 1C metabolism increases expression of erythroid differentiation markers. Moreover, we find that increased differentiation occurs independently of AMPK signalling and can be reversed through reconstitution of purine levels and reactivation of mTORC1. Of clinical relevance, we identify that combination of 1C metabolism inhibition with imatinib, a frontline treatment for CML patients, decreases the number of therapy-resistant CML LSCs in a patient-derived xenograft model. Our results highlight a role for folate metabolism and purine sensing in stem cell fate decisions and leukaemogenesis.
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Affiliation(s)
- Martha M Zarou
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Kevin M Rattigan
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Daniele Sarnello
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Engy Shokry
- Cancer Research UK Scotland Institute, Glasgow, G61 1BD, UK
| | - Amy Dawson
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Angela Ianniciello
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK
| | - Karen Dunn
- Paul O'Gorman Leukaemia Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G12 0ZD, UK
| | - Mhairi Copland
- Paul O'Gorman Leukaemia Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G12 0ZD, UK
| | - David Sumpton
- Cancer Research UK Scotland Institute, Glasgow, G61 1BD, UK
| | - Alexei Vazquez
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK.
| | - G Vignir Helgason
- Wolfson Wohl Cancer Research Centre, School of Cancer Sciences, University of Glasgow, Glasgow, G61 1QH, UK.
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3
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Chea M, Rigolot L, Canali A, Vergez F. Minimal Residual Disease in Acute Myeloid Leukemia: Old and New Concepts. Int J Mol Sci 2024; 25:2150. [PMID: 38396825 PMCID: PMC10889505 DOI: 10.3390/ijms25042150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 02/01/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Minimal residual disease (MRD) is of major importance in onco-hematology, particularly in acute myeloid leukemia (AML). MRD measures the amount of leukemia cells remaining in a patient after treatment, and is an essential tool for disease monitoring, relapse prognosis, and guiding treatment decisions. Patients with a negative MRD tend to have superior disease-free and overall survival rates. Considerable effort has been made to standardize MRD practices. A variety of techniques, including flow cytometry and molecular methods, are used to assess MRD, each with distinct strengths and weaknesses. MRD is recognized not only as a predictive biomarker, but also as a prognostic tool and marker of treatment efficacy. Expected advances in MRD assessment encompass molecular techniques such as NGS and digital PCR, as well as optimization strategies such as unsupervised flow cytometry analysis and leukemic stem cell monitoring. At present, there is no perfect method for measuring MRD, and significant advances are expected in the future to fully integrate MRD assessment into the management of AML patients.
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Affiliation(s)
- Mathias Chea
- Laboratoire d’Hématologie Biologique, Institut Universitaire du Cancer de Toulouse Oncopole, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France; (M.C.); (L.R.); (A.C.)
| | - Lucie Rigolot
- Laboratoire d’Hématologie Biologique, Institut Universitaire du Cancer de Toulouse Oncopole, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France; (M.C.); (L.R.); (A.C.)
- School of Medicine, Université Toulouse III Paul Sabatier, 31062 Toulouse, France
| | - Alban Canali
- Laboratoire d’Hématologie Biologique, Institut Universitaire du Cancer de Toulouse Oncopole, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France; (M.C.); (L.R.); (A.C.)
- School of Medicine, Université Toulouse III Paul Sabatier, 31062 Toulouse, France
| | - Francois Vergez
- Laboratoire d’Hématologie Biologique, Institut Universitaire du Cancer de Toulouse Oncopole, Centre Hospitalier Universitaire de Toulouse, 31059 Toulouse, France; (M.C.); (L.R.); (A.C.)
- School of Medicine, Université Toulouse III Paul Sabatier, 31062 Toulouse, France
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4
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Maleki EH, Bahrami AR, Matin MM. Cancer cell cycle heterogeneity as a critical determinant of therapeutic resistance. Genes Dis 2024; 11:189-204. [PMID: 37588236 PMCID: PMC10425754 DOI: 10.1016/j.gendis.2022.11.025] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 10/20/2022] [Accepted: 11/16/2022] [Indexed: 01/15/2023] Open
Abstract
Intra-tumor heterogeneity is now arguably one of the most-studied topics in tumor biology, as it represents a major obstacle to effective cancer treatment. Since tumor cells are highly diverse at genetic, epigenetic, and phenotypic levels, intra-tumor heterogeneity can be assumed as an important contributing factor to the nullification of chemotherapeutic effects, and recurrence of the tumor. Based on the role of heterogeneous subpopulations of cancer cells with varying cell-cycle dynamics and behavior during cancer progression and treatment; herein, we aim to establish a comprehensive definition for adaptation of neoplastic cells against therapy. We discuss two parallel and yet distinct subpopulations of tumor cells that play pivotal roles in reducing the effects of chemotherapy: "resistant" and "tolerant" populations. Furthermore, this review also highlights the impact of the quiescent phase of the cell cycle as a survival mechanism for cancer cells. Beyond understanding the mechanisms underlying the quiescence, it provides an insightful perspective on cancer stem cells (CSCs) and their dual and intertwined functions based on their cell cycle state in response to treatment. Moreover, CSCs, epithelial-mesenchymal transformed cells, circulating tumor cells (CTCs), and disseminated tumor cells (DTCs), which are mostly in a quiescent state of the cell cycle are proved to have multiple biological links and can be implicated in our viewpoint of cell cycle heterogeneity in tumors. Overall, increasing our knowledge of cell cycle heterogeneity is a key to identifying new therapeutic solutions, and this emerging concept may provide us with new opportunities to prevent the dreadful cancer recurrence.
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Affiliation(s)
- Ebrahim H. Maleki
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
- Jagiellonian Centre for Experimental Therapeutics (JCET), Jagiellonian University, 31-007 Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, 30-348 Krakow, Poland
| | - Ahmad Reza Bahrami
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
- Industrial Biotechnology Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
| | - Maryam M. Matin
- Department of Biology, Faculty of Science, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
- Novel Diagnostics and Therapeutics Research Group, Institute of Biotechnology, Ferdowsi University of Mashhad, 9177948974 Mashhad, Iran
- Stem Cell and Regenerative Medicine Research Group, Iranian Academic Center for Education, Culture and Research (ACECR), Khorasan Razavi Branch, 917751376 Mashhad, Iran
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5
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Wang W, Jiang K, Liu X, Li J, Zhou W, Wang C, Cui J, Liang T. FBXW7 and human tumors: mechanisms of drug resistance and potential therapeutic strategies. Front Pharmacol 2023; 14:1278056. [PMID: 38027013 PMCID: PMC10680170 DOI: 10.3389/fphar.2023.1278056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 10/11/2023] [Indexed: 12/01/2023] Open
Abstract
Drug therapy, including chemotherapy, targeted therapy, immunotherapy, and endocrine therapy, stands as the foremost therapeutic approach for contemporary human malignancies. However, increasing drug resistance during antineoplastic therapy has become a substantial barrier to favorable outcomes in cancer patients. To enhance the effectiveness of different cancer therapies, an in-depth understanding of the unique mechanisms underlying tumor drug resistance and the subsequent surmounting of antitumor drug resistance is required. Recently, F-box and WD Repeat Domain-containing-7 (FBXW7), a recognized tumor suppressor, has been found to be highly associated with tumor therapy resistance. This review provides a comprehensive summary of the underlying mechanisms through which FBXW7 facilitates the development of drug resistance in cancer. Additionally, this review elucidates the role of FBXW7 in therapeutic resistance of various types of human tumors. The strategies and challenges implicated in overcoming tumor therapy resistance by targeting FBXW7 are also discussed.
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Affiliation(s)
| | | | | | | | | | | | | | - Tingting Liang
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin, China
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6
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Hu Y, Wan C, Yang X, Tian Y, Deng S, An D, Wang Y, Wang J, Liao Z, Meng J, Qin Y, Sun Y, Yang K. Radiated tumor cell-derived microparticles effectively kill stem-like tumor cells by increasing reactive oxygen species. Front Bioeng Biotechnol 2023; 11:1156951. [PMID: 37342505 PMCID: PMC10277801 DOI: 10.3389/fbioe.2023.1156951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/21/2023] [Indexed: 06/23/2023] Open
Abstract
Stem-like tumor cells (SLTCs) are thought to be the cellular entity responsible for clinical recurrence and subsequent metastasis. Inhibiting or killing SLTCs can effectively reduce recurrence and metastasis, yet little has been done to clear SLTCs because they are usually resistant to chemotherapy, radiotherapy, and even immunotherapy. In this study, we established SLTCs by low-serum culture and confirmed that the low-serum-cultured tumor cells were in a quiescent state and resistant to chemotherapy, showing features of SLTCs, consistent with the reported data. We demonstrated that SLTCs had high levels of reactive oxygen species (ROS). Based on the finding that radiated tumor cell-derived microparticles (RT-MPs) contained ROS, we used RT-MPs to kill SLTCs. We found that RT-MPs could further increase ROS levels and kill SLTCs in vivo and in vitro partially by ROS carried by the RT-MPs themselves, providing a new method for eliminating SLTCs.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Yajie Sun
- *Correspondence: Yajie Sun, ; Kunyu Yang,
| | - Kunyu Yang
- *Correspondence: Yajie Sun, ; Kunyu Yang,
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7
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Srinivasan Rajsri K, Roy N, Chakraborty S. Acute Myeloid Leukemia Stem Cells in Minimal/Measurable Residual Disease Detection. Cancers (Basel) 2023; 15:2866. [PMID: 37345204 PMCID: PMC10216329 DOI: 10.3390/cancers15102866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/14/2023] [Accepted: 05/17/2023] [Indexed: 06/23/2023] Open
Abstract
Acute myeloid leukemia (AML) is a hematological malignancy characterized by an abundance of incompletely matured or immature clonally derived hematopoietic precursors called leukemic blasts. Rare leukemia stem cells (LSCs) that can self-renew as well as give rise to leukemic progenitors comprising the bulk of leukemic blasts are considered the cellular reservoir of disease initiation and maintenance. LSCs are widely thought to be relatively resistant as well as adaptive to chemotherapy and can cause disease relapse. Therefore, it is imperative to understand the molecular bases of LSC forms and functions during different stages of disease progression, so we can more accurately identify these cells and design therapies to target them. Irrespective of the morphological, cytogenetic, and cellular heterogeneity of AML, the uniform, singularly important and independently significant prognosticator of disease response to therapy and patient outcome is measurable or minimal residual disease (MRD) detection, defined by residual disease detection below the morphology-based 5% blast threshold. The importance of LSC identification and frequency estimation during MRD detection, in order to make MRD more effective in predicting disease relapse and modifying therapeutic regimen is becoming increasingly apparent. This review focuses on summarizing functional and cellular composition-based LSC identification and linking those studies to current techniques of MRD detection to suggest LSC-inclusive MRD detection as well as outline outstanding questions that need to be addressed to improve the future of AML clinical management and treatment outcomes.
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Affiliation(s)
- Kritika Srinivasan Rajsri
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; (K.S.R.); (N.R.)
- Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY 10010, USA
| | - Nainita Roy
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; (K.S.R.); (N.R.)
| | - Sohini Chakraborty
- Department of Pathology, New York University Grossman School of Medicine, New York, NY 10016, USA; (K.S.R.); (N.R.)
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8
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Ragusa D, Dijkhuis L, Pina C, Tosi S. Mechanisms associated with t(7;12) acute myeloid leukaemia: from genetics to potential treatment targets. Biosci Rep 2023; 43:BSR20220489. [PMID: 36622782 PMCID: PMC9894016 DOI: 10.1042/bsr20220489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/04/2023] [Accepted: 01/09/2023] [Indexed: 01/10/2023] Open
Abstract
Acute myeloid leukaemia (AML), typically a disease of elderly adults, affects 8 children per million each year, with the highest paediatric incidence in infants aged 0-2 of 18 per million. Recurrent cytogenetic abnormalities contribute to leukaemia pathogenesis and are an important determinant of leukaemia classification. The t(7;12)(q36;p13) translocation is a high-risk AML subtype exclusively associated with infants and represents the second most common abnormality in this age group. Mechanisms of t(7;12) leukaemogenesis remain poorly understood. The translocation relocates the entire MNX1 gene within the ETV6 locus, but a fusion transcript is present in only half of the patients and its significance is unclear. Instead, research has focused on ectopic MNX1 expression, a defining feature of t(7;12) leukaemia, which has nevertheless failed to produce transformation in conventional disease models. Recently, advances in genome editing technologies have made it possible to recreate the t(7;12) rearrangement at the chromosomal level. Together with recent studies of MNX1 involvement using murine in vivo, in vitro, and organoid-based leukaemia models, specific investigation on the biology of t(7;12) can provide new insights into this AML subtype. In this review, we provide a comprehensive up-to-date analysis of the biological features of t(7;12), and discuss recent advances in mechanistic understanding of the disease which may deliver much-needed therapeutic opportunities to a leukaemia of notoriously poor prognosis.
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Affiliation(s)
- Denise Ragusa
- College of Health, Medicine and Life Sciences, Division of Biosciences, Brunel University London, Uxbridge, UB8 3PH, U.K
- Centre for Genome Engineering and Maintenance (CenGEM), Brunel University London, Kingston Lane, UB8 3PH, U.K
| | - Liza Dijkhuis
- College of Health, Medicine and Life Sciences, Division of Biosciences, Brunel University London, Uxbridge, UB8 3PH, U.K
| | - Cristina Pina
- College of Health, Medicine and Life Sciences, Division of Biosciences, Brunel University London, Uxbridge, UB8 3PH, U.K
- Centre for Genome Engineering and Maintenance (CenGEM), Brunel University London, Kingston Lane, UB8 3PH, U.K
| | - Sabrina Tosi
- College of Health, Medicine and Life Sciences, Division of Biosciences, Brunel University London, Uxbridge, UB8 3PH, U.K
- Centre for Genome Engineering and Maintenance (CenGEM), Brunel University London, Kingston Lane, UB8 3PH, U.K
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9
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Al-Kaabneh B, Frisch B, Aljitawi OS. The Potential Role of 3D In Vitro Acute Myeloid Leukemia Culture Models in Understanding Drug Resistance in Leukemia Stem Cells. Cancers (Basel) 2022; 14:5252. [PMID: 36358676 PMCID: PMC9656790 DOI: 10.3390/cancers14215252] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/14/2022] [Accepted: 10/21/2022] [Indexed: 11/14/2023] Open
Abstract
The complexity of the bone marrow (BM) microenvironment makes studying hematological malignancies in vitro a challenging task. Three-dimensional cell cultures are being actively studied, particularly due to their ability to serve as a bridge of the gap between 2D cultures and animal models. The role of 3D in vitro models in studying the mechanisms of chemotherapeutic resistance and leukemia stem cells (LSCs) in acute myeloid leukemia (AML) is not well-reviewed. We present an overview of 3D cell models used for studying AML, emphasizing the recent advancements in microenvironment modeling, chemotherapy testing, and resistance.
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Affiliation(s)
- Basil Al-Kaabneh
- Hematology/Oncology Division, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Benjamin Frisch
- Departments of Pathology and Biomedical Engineering, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Omar S. Aljitawi
- Hematology/Oncology Division, University of Rochester Medical Center, Rochester, NY 14642, USA
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10
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Kim E, Hwang EJ, Lee J, Kim DY, Kim JY, Kim DW. Patient-specific molecular response dynamics can predict the possibility of relapse during the second treatment-free remission attempt in chronic myelogenous leukemia. Neoplasia 2022; 32:100817. [PMID: 35878453 PMCID: PMC9309666 DOI: 10.1016/j.neo.2022.100817] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 04/26/2022] [Accepted: 06/22/2022] [Indexed: 11/16/2022]
Abstract
In chronic myelogenous leukemia (CML), treatment-free remission (TFR) is defined as maintaining a major molecular response (MMR) without a tyrosine kinase inhibitor (TKI), such as imatinib (IM). Several studies have investigated the safety of the first TFR (TFR1) attempt and suggested recommendation guidelines for such an attempt. However, the plausibility and predictive factors for a second TFR (TFR2) have yet to be reported. The present study included 21 patients in chronic myeloid leukemia who participated in twice repeated treatment stop attempts. We develop a mathematical model to analyze and explain the outcomes of TFR2. Our mathematical model framework can explain patient-specific molecular response dynamics. Fitting the model to longitudinal BCR-ABL1 transcripts from the patients generated patient-specific parameters. Binary tree decision analyses of the model parameters suggested a model based predictive binary classification factor that separated patients into low- and high-risk groups of TFR2 attempts with an overall accuracy of 76.2% (sensitivity of 81.1% and specificity of 69.9%). The low-risk group maintained a median TFR2 of 28.2 months, while the high-risk group relapsed at a median time of 3.25 months. Further, our model predicted a patient-specific optimal IM treatment duration before the second IM stop that could achieve the desired TFR2 (e.g., 5 years).
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Affiliation(s)
- Eunjung Kim
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Gangneung, South Korea.
| | - Eo-Jin Hwang
- Leukemia Omics Research Institute, Eulji University Uijeongbu Campus, Uijeongbu, South Korea
| | - Junghye Lee
- Department of Industrial Engineering, Ulsan National Institute of Science and Technology, Ulsan, South Korea
| | - Dae-Young Kim
- Department of Hematology, Hematology center, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, South Korea
| | - Jae-Young Kim
- Graduate School of Analytical Science and Technology (GRAST), Chungnam National University, Daejeon, South Korea.
| | - Dong-Wook Kim
- Department of Hematology, Hematology center, Uijeongbu Eulji Medical Center, Eulji University, Uijeongbu, South Korea; Leukemia Omics Research Institute, Eulji University Uijeongbu Campus, Uijeongbu, South Korea.
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11
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Dhanyamraju PK, Schell TD, Amin S, Robertson GP. Drug-Tolerant Persister Cells in Cancer Therapy Resistance. Cancer Res 2022; 82:2503-2514. [PMID: 35584245 PMCID: PMC9296591 DOI: 10.1158/0008-5472.can-21-3844] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/15/2022] [Accepted: 05/09/2022] [Indexed: 01/21/2023]
Abstract
One of the current stumbling blocks in our fight against cancer is the development of acquired resistance to therapy, which is attributable to approximately 90% of cancer-related deaths. Undercutting this process during treatment could significantly improve cancer management. In many cases, drug resistance is mediated by a drug-tolerant persister (DTP) cell subpopulation present in tumors, often referred to as persister cells. This review provides a summary of currently known persister cell subpopulations and approaches to target them. A specific DTP cell subpopulation with elevated levels of aldehyde dehydrogenase (ALDH) activity has stem cell-like characteristics and a high level of plasticity, enabling them to switch rapidly between high and low ALDH activity. Further studies are required to fully elucidate the functions of ALDH-high DTP cells, how they withstand drug concentrations that kill other cells, and how they rapidly adapt under levels of high cellular stress and eventually lead to more aggressive, recurrent, and drug-resistant cancer. Furthermore, this review addresses the processes used by the ALDH-high persister cell subpopulation to enable cancer progression, the ALDH isoforms important in these processes, interactions of ALDH-high DTPs with the tumor microenvironment, and approaches to therapeutically modulate this subpopulation in order to more effectively manage cancer.
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Affiliation(s)
- Pavan Kumar Dhanyamraju
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
| | - Todd D Schell
- Departments of Microbiology and Immunology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
| | - Shantu Amin
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
| | - Gavin P Robertson
- Department of Pharmacology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
- Department of Pathology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
- Department of Dermatology, The Pennsylvania State University College of Medicine, Hershey, PA 17033
- Department of Surgery, The Pennsylvania State University College of Medicine, Hershey, PA 17033
- The Penn State Melanoma and Skin Cancer Center, The Pennsylvania State University College of Medicine, Hershey, PA 17033
- Penn State Melanoma Therapeutics Program, The Pennsylvania State University College of Medicine, Hershey, PA 17033
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12
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Shen W, Zhou Q, Peng C, Li J, Yuan Q, Zhu H, Zhao M, Jiang X, Liu W, Ren C. FBXW7 and the Hallmarks of Cancer: Underlying Mechanisms and Prospective Strategies. Front Oncol 2022; 12:880077. [PMID: 35515121 PMCID: PMC9063462 DOI: 10.3389/fonc.2022.880077] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 03/15/2022] [Indexed: 12/13/2022] Open
Abstract
FBXW7, a member of the F-box protein family within the ubiquitin–proteasome system, performs an indispensable role in orchestrating cellular processes through ubiquitination and degradation of its substrates, such as c-MYC, mTOR, MCL-1, Notch, and cyclin E. Mainly functioning as a tumor suppressor, inactivation of FBXW7 induces the aberrations of its downstream pathway, resulting in the occurrence of diseases especially tumorigenesis. Here, we decipher the relationship between FBXW7 and the hallmarks of cancer and discuss the underlying mechanisms. Considering the interplay of cancer hallmarks, we propose several prospective strategies for circumventing the deficits of therapeutic resistance and complete cure of cancer patients.
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Affiliation(s)
- Wenyue Shen
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Quanwei Zhou
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Chenxi Peng
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Jiaheng Li
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qizhi Yuan
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Hecheng Zhu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,Changsha Kexin Cancer Hospital, Changsha, China
| | - Ming Zhao
- Changsha Kexin Cancer Hospital, Changsha, China
| | - Xingjun Jiang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Weidong Liu
- Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, School of Basic Medicine, Central South University, Changsha, China
| | - Caiping Ren
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China.,Cancer Research Institute, School of Basic Medical Science, Central South University, Changsha, China.,The Key Laboratory of Carcinogenesis of the Chinese Ministry of Health and the Key Laboratory of Carcinogenesis and Cancer Invasion of the Chinese Ministry of Education, School of Basic Medicine, Central South University, Changsha, China
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13
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Saad AA. Targeting cancer-associated glycans as a therapeutic strategy in leukemia. ALL LIFE 2022. [DOI: 10.1080/26895293.2022.2049901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Ashraf Abdullah Saad
- Unit of Pediatric Hematologic Oncology and BMT, Sultan Qaboos University Hospital, Muscat, Oman
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14
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Di Q, Deng H, Zhao Y, Li BY, Qin L. Second-Generation Tyrosine Kinase Inhibitor Discontinuation in Chronic Myeloid Leukemia Patients with Stable Deep Molecular Response: A Systematic Review and a Meta-Analysis. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:3110622. [PMID: 34956393 PMCID: PMC8702334 DOI: 10.1155/2021/3110622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 11/13/2021] [Accepted: 11/26/2021] [Indexed: 11/17/2022]
Abstract
The treatment with 2nd-generation tyrosine kinase inhibitors (2G-TKIs), namely, dasatinib and nilotinib, has been reported to have faster and deeper responses in newly diagnosed chronic phase-chronic myeloid leukemia (CP-CML) patients as compared with imatinab. A number of studies on the discontinuation of 2G-TKIs have been conducted and recently published. A meta-analysis was conducted in this study to assess the rate of treatment-free remission (TFR) rate as well as the long-term safety of 2G-TKI discontinuation in CML patients with stable deep molecular response (DMR). 517 patients were recruited in 5 single-armed, prospective cohort studies. The overall weighted mean TFR rate at the follow-up of 12 months reached 57% (95% CI 51-64%; I 2 = 56.4%). The weighted mean TFR rate at the 24-month follow-up was 53% (95% CI 47-60%; I 2 = 47.1%). The loss of TFR was primarily concentrated in the first 12 months. 96.5% of patients, having restarted TKI therapy after a molecular relapse, achieved major molecular response (MMR) rapidly. There were four deaths at the two-year follow-up. As suggested from the results of the final study, 2G-TKI discontinuation in CML patients with stable DMR was reported to be feasible. Relapsed patients were retreated with 2G-TKI, and over 95% of patients could reach MMR. Almost no deaths occurred due to adverse events in two years after discontinuation, and more than half of the patients could maintain a TFR.
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Affiliation(s)
- Qiongnan Di
- Department of Hematology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Huiyang Deng
- Department of Hematology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Yingxin Zhao
- Department of Hematology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Bo-ya Li
- Department of Hematology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China
| | - Ling Qin
- Department of Hematology, First Affiliated Hospital, College of Clinical Medicine, Henan University of Science and Technology, Luoyang, Henan, China
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15
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Stetson LC, Balasubramanian D, Ribeiro SP, Stefan T, Gupta K, Xu X, Fourati S, Roe A, Jackson Z, Schauner R, Sharma A, Tamilselvan B, Li S, de Lima M, Hwang TH, Balderas R, Saunthararajah Y, Maciejewski J, LaFramboise T, Barnholtz-Sloan JS, Sekaly RP, Wald DN. Single cell RNA sequencing of AML initiating cells reveals RNA-based evolution during disease progression. Leukemia 2021; 35:2799-2812. [PMID: 34244611 PMCID: PMC8807029 DOI: 10.1038/s41375-021-01338-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/19/2021] [Accepted: 06/25/2021] [Indexed: 02/06/2023]
Abstract
The prognosis of most patients with AML is poor due to frequent disease relapse. The cause of relapse is thought to be from the persistence of leukemia initiating cells (LIC's) following treatment. Here we assessed RNA based changes in LICs from matched patient diagnosis and relapse samples using single-cell RNA sequencing. Previous studies on AML progression have focused on genetic changes at the DNA mutation level mostly in bulk AML cells and demonstrated the existence of DNA clonal evolution. Here we identified in LICs that the phenomenon of RNA clonal evolution occurs during AML progression. Despite the presence of vast transcriptional heterogeneity at the single cell level, pathway analysis identified common signaling networks involving metabolism, apoptosis and chemokine signaling that evolved during AML progression and become a signature of relapse samples. A subset of this gene signature was validated at the protein level in LICs by flow cytometry from an independent AML cohort and functional studies were performed to demonstrate co-targeting BCL2 and CXCR4 signaling may help overcome therapeutic challenges with AML heterogeneity. It is hoped this work will facilitate a greater understanding of AML relapse leading to improved prognostic biomarkers and therapeutic strategies to target LIC's.
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Affiliation(s)
- L C Stetson
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | | | | | - Tammy Stefan
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Kalpana Gupta
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Xuan Xu
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Slim Fourati
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Anne Roe
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Zachary Jackson
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Robert Schauner
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | - Ashish Sharma
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
| | | | - Samuel Li
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Marcos de Lima
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Tae Hyun Hwang
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | | | - Yogen Saunthararajah
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, OH, USA
| | - Jaroslaw Maciejewski
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Translational Hematology and Oncology Research, Cleveland Clinic, Cleveland, OH, USA
| | - Thomas LaFramboise
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Genetics and Genome Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Jill S Barnholtz-Sloan
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Rafick-Pierre Sekaly
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA
| | - David N Wald
- Department of Pathology, Case Western Reserve University, Cleveland, OH, USA.
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH, USA.
- Department of Pathology, University Hospitals Cleveland Medical Center and Louis Stokes Cleveland VA Medical Center, Cleveland, OH, USA.
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16
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Aung MMK, Mills ML, Bittencourt‐Silvestre J, Keeshan K. Insights into the molecular profiles of adult and paediatric acute myeloid leukaemia. Mol Oncol 2021; 15:2253-2272. [PMID: 33421304 PMCID: PMC8410545 DOI: 10.1002/1878-0261.12899] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 12/18/2020] [Accepted: 01/07/2021] [Indexed: 12/15/2022] Open
Abstract
Acute myeloid leukaemia (AML) is a clinically and molecularly heterogeneous disease characterised by uncontrolled proliferation, block in differentiation and acquired self-renewal of hematopoietic stem and myeloid progenitor cells. This results in the clonal expansion of myeloid blasts within the bone marrow and peripheral blood. The incidence of AML increases with age, and in childhood, AML accounts for 20% of all leukaemias. Whilst there are many clinical and biological similarities between paediatric and adult AML with continuum across the age range, many characteristics of AML are associated with age of disease onset. These include chromosomal aberrations, gene mutations and differentiation lineage. Following chemotherapy, AML cells that survive and result in disease relapse exist in an altered chemoresistant state. Molecular profiling currently represents a powerful avenue of experimentation to study AML cells from adults and children pre- and postchemotherapy as a means of identifying prognostic biomarkers and targetable molecular vulnerabilities that may be age-specific. This review highlights recent advances in our knowledge of the molecular profiles with a focus on transcriptomes and metabolomes, leukaemia stem cells and chemoresistant cells in adult and paediatric AML and focus on areas that hold promise for future therapies.
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Affiliation(s)
- Myint Myat Khine Aung
- Paul O’Gorman Leukaemia Research CentreInstitute of Cancer SciencesUniversity of GlasgowUK
| | - Megan L. Mills
- Paul O’Gorman Leukaemia Research CentreInstitute of Cancer SciencesUniversity of GlasgowUK
| | | | - Karen Keeshan
- Paul O’Gorman Leukaemia Research CentreInstitute of Cancer SciencesUniversity of GlasgowUK
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17
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Dias MH, Bernards R. Playing cancer at its own game: activating mitogenic signaling as a paradoxical intervention. Mol Oncol 2021; 15:1975-1985. [PMID: 33955157 PMCID: PMC8333773 DOI: 10.1002/1878-0261.12979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 04/12/2021] [Accepted: 04/30/2021] [Indexed: 12/12/2022] Open
Abstract
In psychotherapy, paradoxical interventions are characterized by a deliberate reinforcement of the pathological behavior to improve the clinical condition. Such a counter-intuitive approach can be considered when more conventional interventions fail. The development of targeted cancer therapies has enabled the selective inhibition of activated oncogenic signaling pathways. However, in advanced cancers, such therapies, on average, deliver modest benefits due to the development of resistance. Here, we review the perspective of a 'paradoxical intervention' in cancer therapy: rather than attempting to inhibit oncogenic signaling, the proposed therapy would further activate mitogenic signaling to disrupt the labile homeostasis of cancer cells and overload stress response pathways. Such overactivation can potentially be combined with stress-targeted drugs to kill overstressed cancer cells. Although counter-intuitive, such an approach exploits intrinsic and ubiquitous differences between normal and cancer cells. We discuss the background underlying this unconventional approach and how such intervention might address some current challenges in cancer therapy.
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Affiliation(s)
- Matheus Henrique Dias
- Division of Molecular CarcinogenesisOncode InstituteThe Netherlands Cancer InstituteAmsterdamThe Netherlands
| | - René Bernards
- Division of Molecular CarcinogenesisOncode InstituteThe Netherlands Cancer InstituteAmsterdamThe Netherlands
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18
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Ma XY, Wei L, Lei Z, Chen Y, Ding Z, Chen ZS. Recent progress on targeting leukemia stem cells. Drug Discov Today 2021; 26:1904-1913. [PMID: 34029689 DOI: 10.1016/j.drudis.2021.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Revised: 04/14/2021] [Accepted: 05/17/2021] [Indexed: 10/21/2022]
Abstract
Leukemia is a type of malignant clonal disease of hematopoietic stem cells (HSCs). A small population of leukemic stem cells (LSCs) are responsible for the initiation, drug resistance, and relapse of leukemia. LSCs have the ability to form tumors after xenotransplantation in immunodeficient mice and appear to be common in most human leukemias. Therefore, the eradication of LSCs is an approach with the potential to improve survival or even to cure leukemia. Using recent research in the field of LSCs, we summarize the targeted therapy approaches for the removal of LSCs through surface markers including immune checkpoint molecules, pathways influencing LSC survival, or the survival microenvironment of LSCs. In addition, we introduce the survival microenvironment and survival regulation of LSCs.
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Affiliation(s)
- Xiang-Yu Ma
- School of Pharmacy, Weifang Medical University, Weifang 261053, PR China
| | - Liuya Wei
- School of Pharmacy, Weifang Medical University, Weifang 261053, PR China.
| | - Zining Lei
- Department of Pharmaceutical Sciences, College of Pharmacy and Health Sciences, St. John's University, Queens, NY 11439, USA
| | - Yanglu Chen
- Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA
| | - Zhiyong Ding
- Mills Institute for Personalized Cancer Care, Fynn Biotechnologies Ltd., Gangxing 3rd Rd, High-Tech and Innovation Zone, Jinan, Shandong 250101, PR China
| | - Zhe-Sheng Chen
- School of Pharmacy, Weifang Medical University, Weifang 261053, PR China.
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19
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Delineation of target expression profiles in CD34+/CD38- and CD34+/CD38+ stem and progenitor cells in AML and CML. Blood Adv 2021; 4:5118-5132. [PMID: 33085758 DOI: 10.1182/bloodadvances.2020001742] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 08/21/2020] [Indexed: 12/12/2022] Open
Abstract
In an attempt to identify novel markers and immunological targets in leukemic stem cells (LSCs) in acute myeloid leukemia (AML) and chronic myeloid leukemia (CML), we screened bone marrow (BM) samples from patients with AML (n = 274) or CML (n = 97) and controls (n = 288) for expression of cell membrane antigens on CD34+/CD38- and CD34+/CD38+ cells by multicolor flow cytometry. In addition, we established messenger RNA expression profiles in purified sorted CD34+/CD38- and CD34+/CD38+ cells using gene array and quantitative polymerase chain reaction. Aberrantly expressed markers were identified in all cohorts. In CML, CD34+/CD38- LSCs exhibited an almost invariable aberration profile, defined as CD25+/CD26+/CD56+/CD93+/IL-1RAP+. By contrast, in patients with AML, CD34+/CD38- cells variably expressed "aberrant" membrane antigens, including CD25 (48%), CD96 (40%), CD371 (CLL-1; 68%), and IL-1RAP (65%). With the exception of a subgroup of FLT3 internal tandem duplication-mutated patients, AML LSCs did not exhibit CD26. All other surface markers and target antigens detected on AML and/or CML LSCs, including CD33, CD44, CD47, CD52, CD105, CD114, CD117, CD133, CD135, CD184, and roundabout-4, were also found on normal BM stem cells. However, several of these surface targets, including CD25, CD33, and CD123, were expressed at higher levels on CD34+/CD38- LSCs compared with normal BM stem cells. Moreover, antibody-mediated immunological targeting through CD33 or CD52 resulted in LSC depletion in vitro and a substantially reduced LSC engraftment in NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ (NSG) mice. Together, we have established surface marker and target expression profiles of AML LSCs and CML LSCs, which should facilitate LSC enrichment, diagnostic LSC phenotyping, and development of LSC-eradicating immunotherapies.
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20
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Cho H, Jang JE, Eom JI, Jeung HK, Chung H, Kim JS, Cheong JW, Min YH. Arsenic trioxide synergistically promotes the antileukaemic activity of venetoclax by downregulating Mcl-1 in acute myeloid leukaemia cells. Exp Hematol Oncol 2021; 10:28. [PMID: 33858507 PMCID: PMC8051086 DOI: 10.1186/s40164-021-00221-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Accepted: 04/07/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND The evasion of apoptosis through dysregulated Bcl-2 family members is a hallmark of leukaemia stem cells (LSCs) in acute myeloid leukaemia (AML). Therefore, targeting Bcl-2 with venetoclax has been suggested as an attractive strategy for inducing apoptosis in AML LSCs. However, the selective inhibition of Bcl-2 in AML often leads to upregulation of Mcl-1, another dominant anti-apoptotic Bcl-2 family protein conferring venetoclax resistance. METHODS We assessed the combined effect of venetoclax and arsenic trioxide (ATO) on leukaemic cell viability, apoptosis, combination index, and cell cycle in the human LSC-like KG1 and KG1a cells. The synergistic effect of venetoclax and ATO on apoptosis was also examined in primary CD34+ and CD34+CD38- LSCs from the bone marrow (BM) of AML patients, and compared with those from healthy donors. RESULTS Venetoclax efficiently impaired cell viability and dose-dependently promoted apoptosis when combined with ATO; their synergism was aptly represented by the combination index. The combination of venetoclax and ATO impaired cell cycle progression by restricting cells within the sub-G1 phase and facilitating caspase-dependent apoptotic cell death associated with the loss of mitochondrial membrane potential, while sparing healthy BM haematopoietic stem cells. Mechanistically, ATO mitigated venetoclax-induced upregulation of Mcl-1 by the inhibition of AKT and ERK, along with activation of GSK-3β. This led to the Mcl-1 destabilisation, triggering Noxa and Bim to facilitate apoptosis and the consequent activation of the apoptosis executioner protein Bak. Moreover, the combination promoted phosphorylation of ATM, Chk2, p38, and H2AX, indicating an active DNA damage response. CONCLUSIONS Our findings demonstrate the synergistic, preferential antileukaemic effects of venetoclax and ATO on LSCs, providing a rationale for preclinical and clinical trials by combining these agents already being used in clinical practice to treat acute leukaemia.
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Affiliation(s)
- Hyunsoo Cho
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Ji Eun Jang
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
| | - Ju-In Eom
- Avison Biomedical Research Center, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Hoi-Kyung Jeung
- Avison Biomedical Research Center, Yonsei University College of Medicine, Seoul, 03722, Republic of Korea
| | - Haerim Chung
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Jin Seok Kim
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea
| | - Yoo Hong Min
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
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21
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Anusha, Dalal H, Subramanian S, V P S, Gowda DA, H K, Damodar S, Vyas N. Exovesicular-Shh confers Imatinib resistance by upregulating Bcl2 expression in chronic myeloid leukemia with variant chromosomes. Cell Death Dis 2021; 12:259. [PMID: 33707419 PMCID: PMC7952724 DOI: 10.1038/s41419-021-03542-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 02/10/2021] [Accepted: 02/12/2021] [Indexed: 01/29/2023]
Abstract
Chronic myeloid leukemia (CML) patients with complex chromosomal translocations as well as non-compliant CML patients often demonstrate short-lived responses and poor outcomes on the current therapeutic regimes using Imatinib and its variants. It has been derived so far that leukemic stem cells (LSCs) are responsible for Imatinib resistance and CML progression. Sonic hedgehog (Shh) signaling has been implicated in proliferation of this Imatinib-resistant CD34(+) LSCs. Our work here identifies the molecular mechanism of Shh-mediated mutation-independent Imatinib resistance that is most relevant for treating CML-variants and non-compliant patients. Our results elucidate that while Shh can impart stemness, it also upregulates expression of anti-apoptotic protein—Bcl2. It is the upregulation of Bcl2 that is involved in conferring Imatinib resistance to the CD34(+) LSCs. Sub-toxic doses of Bcl2 inhibitor or Shh inhibitor (<<IC50), when used as adjuvants along with Imatinib, can re-sensitize Shh signaling cells to Imatinib. Our work here highlights the need to molecularly stratify CML patients and implement combinatorial therapy to overcome the current limitations and improve outcomes in CML.
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Affiliation(s)
- Anusha
- Manipal Academy of Higher Education (MAHE), Manipal, 576104, India.,St. John's Research Institute, St. John's Academy of Health Sciences, Bangalore, 560034, India
| | - Hamza Dalal
- Mazumdar Shaw Medical Center, Narayana Health City, Bangalore, 560099, India
| | - Sitalakshmi Subramanian
- St. John's Medical College and Hosptial, St. John's Academy of Health Sciences, Bangalore, 560034, India
| | - Snijesh V P
- St. John's Research Institute, St. John's Academy of Health Sciences, Bangalore, 560034, India
| | - Divya A Gowda
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, UAS-GKVK Campus, Bellary Road, Bangalore, 560065, India
| | - Krishnamurthy H
- National Centre for Biological Sciences, Tata Institute of Fundamental Research, UAS-GKVK Campus, Bellary Road, Bangalore, 560065, India
| | - Sharat Damodar
- Mazumdar Shaw Medical Center, Narayana Health City, Bangalore, 560099, India.
| | - Neha Vyas
- St. John's Research Institute, St. John's Academy of Health Sciences, Bangalore, 560034, India.
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22
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Velten L, Story BA, Hernández-Malmierca P, Raffel S, Leonce DR, Milbank J, Paulsen M, Demir A, Szu-Tu C, Frömel R, Lutz C, Nowak D, Jann JC, Pabst C, Boch T, Hofmann WK, Müller-Tidow C, Trumpp A, Haas S, Steinmetz LM. Identification of leukemic and pre-leukemic stem cells by clonal tracking from single-cell transcriptomics. Nat Commun 2021; 12:1366. [PMID: 33649320 PMCID: PMC7921413 DOI: 10.1038/s41467-021-21650-1] [Citation(s) in RCA: 62] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 02/05/2021] [Indexed: 01/07/2023] Open
Abstract
Cancer stem cells drive disease progression and relapse in many types of cancer. Despite this, a thorough characterization of these cells remains elusive and with it the ability to eradicate cancer at its source. In acute myeloid leukemia (AML), leukemic stem cells (LSCs) underlie mortality but are difficult to isolate due to their low abundance and high similarity to healthy hematopoietic stem cells (HSCs). Here, we demonstrate that LSCs, HSCs, and pre-leukemic stem cells can be identified and molecularly profiled by combining single-cell transcriptomics with lineage tracing using both nuclear and mitochondrial somatic variants. While mutational status discriminates between healthy and cancerous cells, gene expression distinguishes stem cells and progenitor cell populations. Our approach enables the identification of LSC-specific gene expression programs and the characterization of differentiation blocks induced by leukemic mutations. Taken together, we demonstrate the power of single-cell multi-omic approaches in characterizing cancer stem cells.
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Affiliation(s)
- Lars Velten
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain.
- Universitat Pompeu Fabra (UPF), Barcelona, Spain.
| | - Benjamin A Story
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany
- Swiss Federal Institute of Technology (ETH) Zurich, Department of Biosystems Science and Engineering, Basel, Switzerland
| | - Pablo Hernández-Malmierca
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, Heidelberg, Germany
| | - Simon Raffel
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, Heidelberg, Germany
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Daniel R Leonce
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany
| | - Jennifer Milbank
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany
| | - Malte Paulsen
- European Molecular Biology Laboratory (EMBL), Flow Cytometry Core Facility, Heidelberg, Germany
| | - Aykut Demir
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Chelsea Szu-Tu
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Robert Frömel
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Christoph Lutz
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Daniel Nowak
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Johann-Christoph Jann
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Caroline Pabst
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
- Molecular Medicine Partnership Unit (MMPU), University of Heidelberg and European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Tobias Boch
- Swiss Federal Institute of Technology (ETH) Zurich, Department of Biosystems Science and Engineering, Basel, Switzerland
- Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, Heidelberg, Germany
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Wolf-Karsten Hofmann
- Department of Hematology and Oncology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Carsten Müller-Tidow
- Department of Internal Medicine V, Hematology, Oncology and Rheumatology, University of Heidelberg, Heidelberg, Germany
| | - Andreas Trumpp
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
| | - Simon Haas
- Heidelberg Institute for Stem Cell Technology and Experimental Medicine (HI-STEM gGmbH), Heidelberg, Germany
- Division of Stem Cells and Cancer, Deutsches Krebsforschungszentrum (DKFZ) and DKFZ-ZMBH Alliance, Heidelberg, Germany
- German Cancer Consortium (DKTK), Heidelberg, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
- Charité-Universitätsmedizin, Berlin, Germany
- Berlin Institute for Medical Systems Biology, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany
| | - Lars M Steinmetz
- European Molecular Biology Laboratory (EMBL), Genome Biology Unit, Heidelberg, Germany.
- Department of Genetics, Stanford University School of Medicine, Stanford, CA, USA.
- Stanford Genome Technology Center, Palo Alto, CA, USA.
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23
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Höpner SS, Raykova A, Radpour R, Amrein MA, Koller D, Baerlocher GM, Riether C, Ochsenbein AF. LIGHT/LTβR signaling regulates self-renewal and differentiation of hematopoietic and leukemia stem cells. Nat Commun 2021; 12:1065. [PMID: 33594067 PMCID: PMC7887212 DOI: 10.1038/s41467-021-21317-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 01/17/2021] [Indexed: 12/30/2022] Open
Abstract
The production of blood cells during steady-state and increased demand depends on the regulation of hematopoietic stem cell (HSC) self-renewal and differentiation. Similarly, the balance between self-renewal and differentiation of leukemia stem cells (LSCs) is crucial in the pathogenesis of leukemia. Here, we document that the TNF receptor superfamily member lymphotoxin-β receptor (LTβR) and its ligand LIGHT regulate quiescence and self-renewal of murine and human HSCs and LSCs. Cell-autonomous LIGHT/LTβR signaling on HSCs reduces cell cycling, promotes symmetric cell division and prevents primitive HSCs from exhaustion in serial re-transplantation experiments and genotoxic stress. LTβR deficiency reduces the numbers of LSCs and prolongs survival in a murine chronic myeloid leukemia (CML) model. Similarly, LIGHT/LTβR signaling in human G-CSF mobilized HSCs and human LSCs results in increased colony forming capacity in vitro. Thus, our results define LIGHT/LTβR signaling as an important pathway in the regulation of the self-renewal of HSCs and LSCs.
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MESH Headings
- Animals
- Antigens, CD34/metabolism
- Cell Cycle/drug effects
- Cell Cycle/genetics
- Cell Differentiation/drug effects
- Cell Proliferation/drug effects
- Cell Self Renewal/drug effects
- Cell Self Renewal/genetics
- DNA Damage
- Fluorouracil/pharmacology
- Gene Expression Regulation, Leukemic/drug effects
- Hematopoietic Stem Cells/drug effects
- Hematopoietic Stem Cells/metabolism
- Humans
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/genetics
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Lymphotoxin beta Receptor/metabolism
- Mice, Inbred C57BL
- Mice, Knockout
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/metabolism
- Neoplastic Stem Cells/pathology
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Signal Transduction/drug effects
- Tumor Necrosis Factor Ligand Superfamily Member 14/metabolism
- Mice
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Affiliation(s)
- S S Höpner
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - Ana Raykova
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - R Radpour
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - M A Amrein
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - D Koller
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - G M Baerlocher
- Department of Hematology and Central Hematology Laboratory, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - C Riether
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
- Department for BioMedical Research, University of Bern, Bern, Switzerland
| | - A F Ochsenbein
- Department of Medical Oncology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland.
- Department for BioMedical Research, University of Bern, Bern, Switzerland.
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24
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Valent P, Bauer K, Sadovnik I, Smiljkovic D, Ivanov D, Herrmann H, Filik Y, Eisenwort G, Sperr WR, Rabitsch W. Cell-based and antibody-mediated immunotherapies directed against leukemic stem cells in acute myeloid leukemia: Perspectives and open issues. Stem Cells Transl Med 2020; 9:1331-1343. [PMID: 32657052 PMCID: PMC7581453 DOI: 10.1002/sctm.20-0147] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/18/2020] [Accepted: 06/04/2020] [Indexed: 12/19/2022] Open
Abstract
Despite new insights in molecular features of leukemic cells and the availability of novel treatment approaches and drugs, acute myeloid leukemia (AML) remains a major clinical challenge. In fact, many patients with AML relapse after standard therapy and eventually die from progressive disease. The basic concept of leukemic stem cells (LSC) has been coined with the goal to decipher clonal architectures in various leukemia-models and to develop curative drug therapies by eliminating LSC. Indeed, during the past few years, various immunotherapies have been tested in AML, and several of these therapies follow the strategy to eliminate relevant leukemic subclones by introducing LSC-targeting antibodies or LSC-targeting immune cells. These therapies include, among others, new generations of LSC-eliminating antibody-constructs, checkpoint-targeting antibodies, bi-specific antibodies, and CAR-T or CAR-NK cell-based strategies. However, responses are often limited and/or transient which may be due to LSC resistance. Indeed, AML LSC exhibit multiple forms of resistance against various drugs and immunotherapies. An additional problems are treatment-induced myelotoxicity and other side effects. The current article provides a short overview of immunological targets expressed on LSC in AML. Moreover, cell-based therapies and immunotherapies tested in AML are discussed. Finally, the article provides an overview about LSC resistance and strategies to overcome resistance.
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Affiliation(s)
- Peter Valent
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Karin Bauer
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Irina Sadovnik
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Dubravka Smiljkovic
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
| | - Daniel Ivanov
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
| | - Harald Herrmann
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
- Department of Radiation OncologyMedical University of ViennaViennaAustria
| | - Yüksel Filik
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Gregor Eisenwort
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Wolfgang R. Sperr
- Department of Internal Medicine I, Division of Hematology and HemostaseologyMedical University of ViennaViennaAustria
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
| | - Werner Rabitsch
- Ludwig Boltzmann Institute for Hematology & OncologyMedical University of ViennaViennaAustria
- Department of Internal Medicine I, Stem Cell Transplantation UnitMedical University of ViennaViennaAustria
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25
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Liu B, Shen Y, Huang H, Croce KD, Wu M, Fan Y, Liu Y, Xu J, Yao G. Curcumin derivative C212 inhibits Hsp90 and eliminates both growing and quiescent leukemia cells in deep dormancy. Cell Commun Signal 2020; 18:159. [PMID: 32993709 PMCID: PMC7523331 DOI: 10.1186/s12964-020-00652-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 08/26/2020] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Relapsed leukemia following initial therapeutic response and remission is difficult to treat and causes high patient mortality. Leukemia relapse is due to residual quiescent leukemia cells that escape conventional therapies and later reemerge. Eliminating not only growing but quiescent leukemia cells is critical to effectively treating leukemia and preventing its recurrence. Such dual targeting therapeutic agents, however, are lacking in the clinic. To start tackling this problem, encouraged by the promising anticancer effects of a set of curcumin derivatives in our earlier studies, we examined in this work the effects of a 4-arylmethyl curcumin derivative (C212) in eliminating both growing and quiescent leukemia cells. METHODS We analyzed the effects of C212 on the growth and viability of growing and quiescent leukemia cells using MTS, apoptosis, cell cycle and cell tracking assays. The effects of C212 on the quiescence depth of leukemia cells were measured using EdU incorporation assay upon growth stimulation. The mechanisms of C212-induced apoptosis and deep dormancy, particularly associated with its inhibition of Hsp90 activity, were studied using molecular docking, protein aggregation assay, and Western blot of client proteins. RESULTS C212, on the one hand, inhibits growing leukemia cells at a higher efficacy than curcumin by inducing apoptosis and G2/M accumulation; it, on the other hand, eliminates quiescent leukemia cells that are resistant to conventional treatments. Furthermore, C212 drives leukemia cells into and kills them at deep quiescence. Lastly, we show that C212 induces apoptosis and drives cells into deep dormancy at least partially by binding to and inhibiting Hsp90, leading to client protein degradation and protein aggregation. CONCLUSION C212 effectively eliminates both growing and quiescent leukemia cells by inhibiting Hsp90. The property of C212 to kill quiescent leukemia cells in deep dormancy avoids the risk associated with awaking therapy-resistant subpopulation of quiescent leukemia cells during treatments, which may lead to the development of novel therapies against leukemia relapse. Video abstract.
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Affiliation(s)
- Bi Liu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ 85721 USA
| | - Yunzhu Shen
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
- The Second Affiliated Hospital of Fujian Medical University, Quanzhou, 362000 Fujian China
| | - Huafang Huang
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
| | - Kimiko Della Croce
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ 85721 USA
| | - Min Wu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
| | - Yingjuan Fan
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
| | - Yang Liu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
| | - Jianhua Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, 350122 China
| | - Guang Yao
- Department of Molecular and Cellular Biology, University of Arizona, Tucson, AZ 85721 USA
- Arizona Cancer Center, University of Arizona, Tucson, AZ 85719 USA
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26
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Xu C, Sun M, Zhang X, Xu Z, Miyamoto H, Zheng Y. Activation of Glucocorticoid Receptor Inhibits the Stem-Like Properties of Bladder Cancer via Inactivating the β-Catenin Pathway. Front Oncol 2020; 10:1332. [PMID: 32850423 PMCID: PMC7419687 DOI: 10.3389/fonc.2020.01332] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 06/25/2020] [Indexed: 12/18/2022] Open
Abstract
Background: Glucocorticoid receptor (GR) signaling pathway has been shown to involve epithelial -to- mesenchymal transition which was implicated in the regulation of bladder cancer stem cells (CSCs) in our previous study. Herein, we aim to figure out how GR affects the stem-like properties of bladder cancer cells. Methods: We used dexamethasone (DEX) treatment or gene-knockdown/-knockout techniques to activate or silence the GR pathway, respectively. Then we applied immunohistochemical staining and flow cytometry to assess the associations between the expression levels of GR and a stem cell surface marker CD44. Stem-like properties were assessed by reactive oxygen species (ROS), sphere-formation and side population assays. The expression levels of cancer stem cell-associated molecules were assessed by quantitative PCR and Western blotting. Tumor growth was compared using mouse xenograft models. Results: In GR-positive bladder cancer cells, DEX significantly reduced the expression of CD44 as well as pluripotency transcription factors including β-catenin and its downstream target (C-MYC, Snail, and OCT-4), the rate of sphere formation, and the proportion of side populations, and induced the intracellular levels of ROS. By contrast, GR silencing in bladder cancer cells showed the opposite effects. In xenograft-bearing mice, GR silencing resulted in the enhancement of tumor growth. Conclusions: These data suggested that GR activity was inversely associated with the stem-like properties of bladder cancer cells, potentially via inactivating the β-catenin pathway.
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Affiliation(s)
- Congcong Xu
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China.,Department of Urology, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Mingwei Sun
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaozhen Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Zhen Xu
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
| | - Hiroshi Miyamoto
- Department of Pathology and Laboratory Medicine, University of Rochester Medical Center, Rochester, NY, United States
| | - Yichun Zheng
- Department of Urology, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China
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27
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Qiu Y, Qiu S, Deng L, Nie L, Gong L, Liao X, Zheng X, Jin K, Li J, Tu X, Liu L, Liu Z, Bao Y, Ai J, Lin T, Yang L, Wei Q. Biomaterial 3D collagen I gel culture model: A novel approach to investigate tumorigenesis and dormancy of bladder cancer cells induced by tumor microenvironment. Biomaterials 2020; 256:120217. [PMID: 32736172 DOI: 10.1016/j.biomaterials.2020.120217] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 06/17/2020] [Accepted: 06/22/2020] [Indexed: 02/07/2023]
Abstract
The high potential for cancer relapse has emerged as a crucial challenge of human bladder cancer treatment. To date, those stem-like bladder cancer cells (BCSCs) have been considered as seeds that induce frequent tumor recurrence. However, the cell origin of cancer stem cells (CSCs) is still a controversial issue, due in part to the findings that CSCs not only origin from normal stem cells but also converted from differentiated tumor cells. Here, we describe a biomaterial 3D collagen I gel culture system, where non-tumorigenic cells can obtain tumorigenic potential and revert back into CSCs through the integrin α2β1/PI3K/AKT/NF-κB cascade, resulting in the tumorigenesis in bladder tissues. Furthermore, inhibiting this integrin α2β1/PI3K/AKT/NF-κB signal pathways can significantly impair the tumorigenic capacity of CSCs. Simultaneously, in vivo studies demonstrate that IFN-γ secreted by T cells can trigger those CSCs into dormancy through the IDO/Kyn/AHR/P27 cascade, which elicit chemotherapy resistance and cancer relapse. To address the challenges of suppressing bladder tumor growth and preventing tumor reoccurrence, we use IDO and integrin α2β1 signal pathway inhibitors combine with chemotherapeutic agents to awaken dormant bladder CSCs and inhibit their tumorigenic ability as well as effectively eliminate CSCs. The therapeutic approaches we propose provide new insights for eradicating tumors and reducing bladder cancer relapse after therapy.
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Affiliation(s)
- Yaqi Qiu
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China; Department of Science and Drug Technology, University of Turin, Via P. Giuria 9, 10125, Turin, Italy
| | - Shi Qiu
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China; Center of Biomedical Big Data, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Linghui Deng
- National Clinical Research Center of Geriatrics, The Center of Gerontology and Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Ling Nie
- Department of Pathology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lina Gong
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Xinyang Liao
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Xiaonan Zheng
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Kun Jin
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Jiakun Li
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Xiang Tu
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Liangren Liu
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Zhenhua Liu
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Yige Bao
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Jianzhong Ai
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Tianhai Lin
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China
| | - Lu Yang
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China.
| | - Qiang Wei
- Department of Urology, Institute of Urology and National Clinical Research Center for Geriatrics, West China Hospital of Sichuan University, Chengdu, Sichuan Province, China.
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28
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Schönherz AA, Bødker JS, Schmitz A, Brøndum RF, Jakobsen LH, Roug AS, Severinsen MT, El-Galaly TC, Jensen P, Johnsen HE, Bøgsted M, Dybkær K. Normal myeloid progenitor cell subset-associated gene signatures for acute myeloid leukaemia subtyping with prognostic impact. PLoS One 2020; 15:e0229593. [PMID: 32324791 PMCID: PMC7179860 DOI: 10.1371/journal.pone.0229593] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/10/2020] [Indexed: 12/30/2022] Open
Abstract
Acute myeloid leukaemia (AML) is characterised by phenotypic heterogeneity, which we hypothesise is a consequence of deregulated differentiation with transcriptional reminiscence of the normal compartment or cell-of-origin. Here, we propose a classification system based on normal myeloid progenitor cell subset-associated gene signatures (MAGS) for individual assignments of AML subtypes. We generated a MAGS classifier including the progenitor compartments CD34+/CD38- for haematopoietic stem cells (HSCs), CD34+/CD38+/CD45RA- for megakaryocyte-erythroid progenitors (MEPs), and CD34+/CD38+/CD45RA+ for granulocytic-monocytic progenitors (GMPs) using regularised multinomial regression with three discrete outcomes and an elastic net penalty. The regularisation parameters were chosen by cross-validation, and MAGS assignment accuracy was validated in an independent data set (N = 38; accuracy = 0.79) of sorted normal myeloid subpopulations. The prognostic value of MAGS assignment was studied in two clinical cohorts (TCGA: N = 171; GSE6891: N = 520) and had a significant prognostic impact. Furthermore, multivariate Cox regression analysis using the MAGS subtype, FAB subtype, cytogenetics, molecular genetics, and age as explanatory variables showed independent prognostic value. Molecular characterisation of subtypes by differential gene expression analysis, gene set enrichment analysis, and mutation patterns indicated reduced proliferation and overrepresentation of RUNX1 and IDH2 mutations in the HSC subtype; increased proliferation and overrepresentation of CEBPA mutations in the MEP subtype; and innate immune activation and overrepresentation of WT1 mutations in the GMP subtype. We present a differentiation-dependent classification system for AML subtypes with distinct pathogenetic and prognostic importance that can help identify candidates poorly responding to combination chemotherapy and potentially guide alternative treatments.
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Affiliation(s)
- Anna A. Schönherz
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
- Department of Molecular Biology and Genetics, Center for Quantitative Genetics and Genomics, Aarhus University, Aarhus, Denmark
| | - Julie Støve Bødker
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Alexander Schmitz
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Rasmus Froberg Brøndum
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Lasse Hjort Jakobsen
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Anne Stidsholt Roug
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Marianne T. Severinsen
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Tarec C. El-Galaly
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Paw Jensen
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Hans Erik Johnsen
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Martin Bøgsted
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
| | - Karen Dybkær
- Department of Clinical Medicine, Faculty of Medicine, Aalborg University, Aalborg, Denmark
- Department of Haematology, Clinical Cancer Research Center, Aalborg University Hospital, Aalborg, Denmark
- * E-mail:
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29
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Raskov H, Orhan A, Salanti A, Gögenur I. Premetastatic niches, exosomes and circulating tumor cells: Early mechanisms of tumor dissemination and the relation to surgery. Int J Cancer 2020; 146:3244-3255. [PMID: 31808150 DOI: 10.1002/ijc.32820] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Revised: 11/15/2019] [Accepted: 11/29/2019] [Indexed: 12/12/2022]
Abstract
The physiological stress response to surgery promotes wound healing and functional recovery and includes the activation of neural, inflammatory and proangiogenic signaling pathways. Paradoxically, the same pathways also promote metastatic spread and growth of residual cancer. Human and animal studies show that cancer surgery can increase survival, migration and proliferation of residual tumor cells. To secure the survival and growth of disseminated tumor cells, the formation of premetastatic niches in target organs involves a complex interplay between microenvironment, immune system, circulating tumor cells, as well as chemical mediators and exosomes secreted by the primary tumor. This review describes the current understanding of the early mechanisms of dissemination, as well as how surgery may facilitate disease progression.
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Affiliation(s)
- Hans Raskov
- Center for Surgical Science, Zealand University Hospital, Køge, Denmark
| | - Adile Orhan
- Center for Surgical Science, Zealand University Hospital, Køge, Denmark.,Department of Biomedical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Ali Salanti
- Centre for Medical Parasitology at Department of Immunology and Microbiology, University of Copenhagen and Department of Infectious Diseases, Copenhagen University Hospital, Copenhagen, Denmark
| | - Ismail Gögenur
- Center for Surgical Science, Zealand University Hospital, Køge, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
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30
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Cardoso BA. The Bone Marrow Niche - The Tumor Microenvironment That Ensures Leukemia Progression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1219:259-293. [PMID: 32130704 DOI: 10.1007/978-3-030-34025-4_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The human body requires a constant delivery of fresh blood cells that are needed to maintain body homeostasis. Hematopoiesis is the process that drives the formation of new blood cells from a single stem cell. This is a complex, orchestrated and tightly regulated process that occurs within the bone marrow. When such process is faulty or deregulated, leukemia arises, develops and thrives by subverting normal hematopoiesis and availing the supplies of this rich milieu.In this book chapter we will describe and characterize the bone marrow microenvironment and its key importance for leukemia expansion. The several components of the bone marrow niche, their interaction with the leukemic cells and the cellular pathways activated within the malignant cells will be emphasized. Finally, novel therapeutic strategies to target this sibling interaction will also be discussed.
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Affiliation(s)
- Bruno António Cardoso
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina da Universidade de Lisboa, Lisbon, Portugal.
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31
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Wierenga ATJ, Cunningham A, Erdem A, Lopera NV, Brouwers-Vos AZ, Pruis M, Mulder AB, Günther UL, Martens JHA, Vellenga E, Schuringa JJ. HIF1/2-exerted control over glycolytic gene expression is not functionally relevant for glycolysis in human leukemic stem/progenitor cells. Cancer Metab 2019; 7:11. [PMID: 31890203 PMCID: PMC6935105 DOI: 10.1186/s40170-019-0206-y] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 12/09/2019] [Indexed: 12/18/2022] Open
Abstract
Background Hypoxia-inducible factors (HIF)1 and 2 are transcription factors that regulate the homeostatic response to low oxygen conditions. Since data related to the importance of HIF1 and 2 in hematopoietic stem and progenitors is conflicting, we investigated the chromatin binding profiles of HIF1 and HIF2 and linked that to transcriptional networks and the cellular metabolic state. Methods Genome-wide ChIPseq and ChIP-PCR experiments were performed to identify HIF1 and HIF2 binding sites in human acute myeloid leukemia (AML) cells and healthy CD34+ hematopoietic stem/progenitor cells. Transcriptome studies were performed to identify gene expression changes induced by hypoxia or by overexpression of oxygen-insensitive HIF1 and HIF2 mutants. Metabolism studies were performed by 1D-NMR, and glucose consumption and lactate production levels were determined by spectrophotometric enzyme assays. CRISPR-CAS9-mediated HIF1, HIF2, and ARNT-/- lines were generated to study the functional consequences upon loss of HIF signaling, in vitro and in vivo upon transplantation of knockout lines in xenograft mice. Results Genome-wide ChIP-seq and transcriptome studies revealed that overlapping HIF1- and HIF2-controlled loci were highly enriched for various processes including metabolism, particularly glucose metabolism, but also for chromatin organization, cellular response to stress and G protein-coupled receptor signaling. ChIP-qPCR validation studies confirmed that glycolysis-related genes but not genes related to the TCA cycle or glutaminolysis were controlled by both HIF1 and HIF2 in leukemic cell lines and primary AMLs, while in healthy human CD34+ cells these loci were predominantly controlled by HIF1 and not HIF2. However, and in contrast to our initial hypotheses, CRISPR/Cas9-mediated knockout of HIF signaling did not affect growth, internal metabolite concentrations, glucose consumption or lactate production under hypoxia, not even in vivo upon transplantation of knockout cells into xenograft mice. Conclusion These data indicate that, while HIFs exert control over glycolysis but not OxPHOS gene expression in human leukemic cells, this is not critically important for their metabolic state. In contrast, inhibition of BCR-ABL did impact on glucose consumption and lactate production regardless of the presence of HIFs. These data indicate that oncogene-mediated control over glycolysis can occur independently of hypoxic signaling modules.
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Affiliation(s)
- Albertus T J Wierenga
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands.,Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700RB Groningen, The Netherlands
| | - Alan Cunningham
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
| | - Ayşegül Erdem
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
| | | | - Annet Z Brouwers-Vos
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
| | - Maurien Pruis
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
| | - André B Mulder
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9700RB Groningen, The Netherlands
| | - Ulrich L Günther
- 3Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK
| | - Joost H A Martens
- 4Department of Molecular Biology, Radboud Institute for Molecular Life Sciences (RIMLS), Nijmegen, The Netherlands
| | - Edo Vellenga
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
| | - Jan Jacob Schuringa
- Department of Experimental Hematology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, Groningen, 9700RB The Netherlands
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32
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Jonart LM, Ebadi M, Basile P, Johnson K, Makori J, Gordon PM. Disrupting the leukemia niche in the central nervous system attenuates leukemia chemoresistance. Haematologica 2019; 105:2130-2140. [PMID: 31624109 PMCID: PMC7395284 DOI: 10.3324/haematol.2019.230334] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 10/14/2019] [Indexed: 12/21/2022] Open
Abstract
Protection from acute lymphoblastic leukemia relapse in the central nervous system (CNS) is crucial to survival and quality of life for leukemia patients. Current CNS-directed therapies cause significant toxicities and are only partially effective. Moreover, the impact of the CNS microenvironment on leukemia biology is poorly understood. In this study we showed that leukemia cells associated with the meninges of xenotransplanted mice, or co-cultured with meningeal cells, exhibit enhanced chemoresistance due to effects on both apoptosis balance and quiescence. From a mechanistic standpoint, we found that leukemia chemoresistance is primarily mediated by direct leukemia-meningeal cell interactions and overcome by detaching the leukemia cells from the meninges. Next, we used a co-culture adhesion assay to identify drugs that disrupted leukemia-meningeal adhesion. In addition to identifying several drugs that inhibit canonical cell adhesion targets we found that Me6TREN (Tris[2-(dimethylamino)ethyl]amine), a novel hematopoietic stem cell-mobilizing compound, also disrupted leukemia-meningeal adhesion and enhanced the efficacy of cytarabine in treating CNS leukemia in xenotransplanted mice. This work demonstrates that the meninges exert a critical influence on leukemia chemoresistance, elucidates mechanisms of relapse beyond the well-described role of the blood-brain barrier, and identifies novel therapeutic approaches for overcoming chemoresistance.
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Affiliation(s)
- Leslie M Jonart
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Maryam Ebadi
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Patrick Basile
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Kimberly Johnson
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Jessica Makori
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota.,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
| | - Peter M Gordon
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Minnesota .,Masonic Cancer Center, University of Minnesota, Minneapolis, MN, USA
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33
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Valent P, Sadovnik I, Eisenwort G, Bauer K, Herrmann H, Gleixner KV, Schulenburg A, Rabitsch W, Sperr WR, Wolf D. Immunotherapy-Based Targeting and Elimination of Leukemic Stem Cells in AML and CML. Int J Mol Sci 2019; 20:E4233. [PMID: 31470642 PMCID: PMC6747233 DOI: 10.3390/ijms20174233] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 12/30/2022] Open
Abstract
The concept of leukemic stem cells (LSC) has been developed with the idea to explain the clonal hierarchies and architectures in leukemia, and the more or less curative anti-neoplastic effects of various targeted drugs. It is now widely accepted that curative therapies must have the potential to eliminate or completely suppress LSC, as only these cells can restore and propagate the malignancy for unlimited time periods. Since LSC represent a minor cell fraction in the leukemic clone, little is known about their properties and target expression profiles. Over the past few years, several cell-specific immunotherapy concepts have been developed, including new generations of cell-targeting antibodies, antibody-toxin conjugates, bispecific antibodies, and CAR-T cell-based strategies. Whereas such concepts have been translated and may improve outcomes of therapy in certain lymphoid neoplasms and a few other malignancies, only little is known about immunological targets that are clinically relevant and can be employed to establish such therapies in myeloid neoplasms. In the current article, we provide an overview of the immunologically relevant molecular targets expressed on LSC in patients with acute myeloid leukemia (AML) and chronic myeloid leukemia (CML). In addition, we discuss the current status of antibody-based therapies in these malignancies, their mode of action, and successful examples from the field.
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MESH Headings
- Acute Disease
- B7-H1 Antigen/antagonists & inhibitors
- B7-H1 Antigen/immunology
- B7-H1 Antigen/metabolism
- CTLA-4 Antigen/antagonists & inhibitors
- CTLA-4 Antigen/immunology
- CTLA-4 Antigen/metabolism
- Humans
- Immunologic Factors/therapeutic use
- Immunotherapy/methods
- Immunotherapy/trends
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/immunology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/therapy
- Leukemia, Myeloid/immunology
- Leukemia, Myeloid/metabolism
- Leukemia, Myeloid/therapy
- Molecular Targeted Therapy/methods
- Molecular Targeted Therapy/trends
- Neoplastic Stem Cells/drug effects
- Neoplastic Stem Cells/immunology
- Neoplastic Stem Cells/metabolism
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Affiliation(s)
- Peter Valent
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria.
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria.
| | - Irina Sadovnik
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Gregor Eisenwort
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Karin Bauer
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Harald Herrmann
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
- Department of Radiotherapy, Medical University of Vienna, 1090 Vienna, Austria
| | - Karoline V Gleixner
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Axel Schulenburg
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
- Division of Blood and Bone Marrow Transplantation, Department of Internal Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Werner Rabitsch
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
- Division of Blood and Bone Marrow Transplantation, Department of Internal Medicine I, Medical University of Vienna, 1090 Vienna, Austria
| | - Wolfgang R Sperr
- Department of Internal Medicine I, Division of Hematology & Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria
- Ludwig Boltzmann Institute for Hematology & Oncology, Medical University of Vienna, 1090 Vienna, Austria
| | - Dominik Wolf
- Department of Internal Medicine V (Hematology & Oncology), Medical University of Innsbruck, 1090 Innsbruck, Austria
- Medical Clinic 3, Oncology, Hematology, Immunoncology & Rheumatology, University Clinic Bonn (UKB), 53127 Bonn, Germany
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34
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Kim K, Marquez-Palencia M, Malladi S. Metastatic Latency, a Veiled Threat. Front Immunol 2019; 10:1836. [PMID: 31447846 PMCID: PMC6691038 DOI: 10.3389/fimmu.2019.01836] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 07/22/2019] [Indexed: 12/12/2022] Open
Abstract
Metastatic relapse is observed in cancer patients with no clinical evidence of disease for months to decades after initial diagnosis and treatment. Disseminated cancer cells that are capable of entering reversible cell cycle arrest are believed to be responsible for these late metastatic relapses. Dynamic interactions between the latent disseminated tumor cells and their surrounding microenvironment aid cancer cell survival and facilitate escape from immune surveillance. Here, we highlight findings from preclinical models that provide a conceptual framework to define and target the latent metastatic phase of tumor progression. The hope is by identifying patients harboring latent metastatic cells and providing therapeutic options to eliminate metastatic seeds prior to their emergence will result in long lasting cures.
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Affiliation(s)
- Kangsan Kim
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, United States.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, United States
| | - Mauricio Marquez-Palencia
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, United States.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, United States
| | - Srinivas Malladi
- Department of Pathology, UT Southwestern Medical Center, Dallas, TX, United States.,Harold C. Simmons Comprehensive Cancer Center, UT Southwestern Medical Center, Dallas, TX, United States
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35
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De Angelis ML, Francescangeli F, La Torre F, Zeuner A. Stem Cell Plasticity and Dormancy in the Development of Cancer Therapy Resistance. Front Oncol 2019; 9:626. [PMID: 31355143 PMCID: PMC6636659 DOI: 10.3389/fonc.2019.00626] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 06/24/2019] [Indexed: 12/11/2022] Open
Abstract
Cancer treatment with either standard chemotherapy or targeted agents often results in the emergence of drug-refractory cell populations, ultimately leading to therapy failure. The biological features of drug resistant cells are largely overlapping with those of cancer stem cells and include heterogeneity, plasticity, self-renewal ability, and tumor-initiating capacity. Moreover, drug resistance is usually characterized by a suppression of proliferation that can manifest as quiescence, dormancy, senescence, or proliferative slowdown. Alterations in key cellular pathways such as autophagy, unfolded protein response or redox signaling, as well as metabolic adaptations also contribute to the establishment of drug resistance, thus representing attractive therapeutic targets. Moreover, a complex interplay of drug resistant cells with the micro/macroenvironment and with the immune system plays a key role in dictating and maintaining the resistant phenotype. Recent studies have challenged traditional views of cancer drug resistance providing innovative perspectives, establishing new connections between drug resistant cells and their environment and indicating unexpected therapeutic strategies. In this review we discuss recent advancements in understanding the mechanisms underlying drug resistance and we report novel targeting agents able to overcome the drug resistant status, with particular focus on strategies directed against dormant cells. Research on drug resistant cancer cells will take us one step forward toward the development of novel treatment approaches and the improvement of relapse-free survival in solid and hematological cancer patients.
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Affiliation(s)
- Maria Laura De Angelis
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
| | | | - Filippo La Torre
- Department of Surgical Sciences Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Ann Zeuner
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, Rome, Italy
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36
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Abstract
Since the introduction of the cancer stem cell (CSC) hypothesis, accumulating evidence shows that most cancers present stem-like niches. However, therapies aimed at targeting this niche have not been as successful as expected. New evidence regarding CSCs hierarchy, similarities with normal tissue stem cells and cell plasticity might be key in understanding their role in cancer biology and how to efficiently eliminate them. In this Chapter, we discuss what is known in breast and prostate CSCs from their initial discoveries to the current therapeutic efforts in the field. Future challenges towards better CSC identification and isolation strategies will be key to shed light into how CSCs could accurately be targeted in combination to traditional therapies to ultimately prolong patient survival.
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Affiliation(s)
- Rocío G Sampayo
- Department of Chemical and Biomolecular Engineering, University of California at Berkeley, Berkeley, CA, United States
| | - Mina J Bissell
- Division of Biological Systems and Engineering, Lawrence Berkeley National Laboratory, Berkeley, CA, United States.
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37
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Role of the calcium toolkit in cancer stem cells. Cell Calcium 2019; 80:141-151. [PMID: 31103948 DOI: 10.1016/j.ceca.2019.05.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 05/07/2019] [Accepted: 05/07/2019] [Indexed: 12/11/2022]
Abstract
Cancer stem cells are a subpopulation of tumor cells that proliferate, self-renew and produce more differentiated tumoral cells building-up the tumor. Responsible for the sustained growth of malignant tumors, cancer stem cells are proposed to play significant roles in cancer resistance to standard treatment and in tumor recurrence. Among the mechanisms dysregulated in neoplasms, those related to Ca2+ play significant roles in various aspects of cancers. Ca2+ is a ubiquitous second messenger whose fluctuations of its intracellular concentrations are tightly controlled by channels, pumps, exchangers and Ca2+ binding proteins. These components support the genesis of Ca2+ signals with specific spatio-temporal characteristics that define the cell response. Being involved in the coupling of extracellular events with intracellular responses, the Ca2+ toolkit is often hijacked by cancer cells to promote notably their proliferation and invasion. Growing evidence obtained during the last decade pointed to a role of Ca2+ handling and mishandling in cancer stem cells. In this review, after a general overview of the concept of cancer stem cells we analyse and discuss the studies and current knowledge regarding the complex roles of Ca2+ toolkit and signaling in these cells. We highlight that numbers of Ca2+ signaling actors promote cancer stem cell state and are associated with cell resistance to current cancer treatments and thus may represent promising targets for potential clinical applications.
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38
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Fouani L, Kovacevic Z, Richardson DR. Targeting Oncogenic Nuclear Factor Kappa B Signaling with Redox-Active Agents for Cancer Treatment. Antioxid Redox Signal 2019; 30:1096-1123. [PMID: 29161883 DOI: 10.1089/ars.2017.7387] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
SIGNIFICANCE Nuclear factor kappa B (NF-κB) signaling is essential under physiologically relevant conditions. However, aberrant activation of this pathway plays a pertinent role in tumorigenesis and contributes to resistance. Recent Advances: The importance of the NF-κB pathway means that its targeting must be specific to avoid side effects. For many currently used therapeutics and those under development, the ability to generate reactive oxygen species (ROS) is a promising strategy. CRITICAL ISSUES As cancer cells exhibit greater ROS levels than their normal counterparts, they are more sensitive to additional ROS, which may be a potential therapeutic niche. It is known that ROS are involved in (i) the activation of NF-κB signaling, when in sublethal amounts; and (ii) high levels induce cytotoxicity resulting in apoptosis. Indeed, ROS-induced cytotoxicity is valuable for its capabilities in killing cancer cells, but establishing the potency of ROS for effective inhibition of NF-κB signaling is necessary. Indeed, some cancer treatments, currently used, activate NF-κB and may stimulate oncogenesis and confer resistance. FUTURE DIRECTIONS Thus, combinatorial approaches using ROS-generating agents alongside conventional therapeutics may prove an effective tactic to reduce NF-κB activity to kill cancer cells. One strategy is the use of thiosemicarbazones, which form redox-active metal complexes that generate high ROS levels to deliver potent antitumor activity. These agents also upregulate the metastasis suppressor, N-myc downstream regulated gene 1 (NDRG1), which functions as an NF-κB signaling inhibitor. It is proposed that targeting NF-κB signaling may proffer a new therapeutic niche to improve the efficacy of anticancer regimens.
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Affiliation(s)
- Leyla Fouani
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Zaklina Kovacevic
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
| | - Des R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, Australia
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39
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Nabinger SC, Chen S, Gao R, Yao C, Kobayashi M, Vemula S, Fahey AC, Wang C, Daniels C, Boswell HS, Sandusky GE, Mayo LD, Kapur R, Liu Y. Mutant p53 enhances leukemia-initiating cell self-renewal to promote leukemia development. Leukemia 2019; 33:1535-1539. [PMID: 30675010 PMCID: PMC9202234 DOI: 10.1038/s41375-019-0377-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 12/20/2018] [Accepted: 12/24/2018] [Indexed: 01/12/2023]
Affiliation(s)
- Sarah C Nabinger
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Sisi Chen
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Rui Gao
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Chonghua Yao
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.,Department of Rheumatism, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Michihiro Kobayashi
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Sasidhar Vemula
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Aidan C Fahey
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Christine Wang
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Cecil Daniels
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - H Scott Boswell
- Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - George E Sandusky
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Lindsey D Mayo
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Reuben Kapur
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Yan Liu
- Department of Pediatrics, Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN, 46202, USA. .,Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, 46202, USA.
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40
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Ren D, Dai Y, Yang Q, Zhang X, Guo W, Ye L, Huang S, Chen X, Lai Y, Du H, Lin C, Peng X, Song L. Wnt5a induces and maintains prostate cancer cells dormancy in bone. J Exp Med 2018; 216:428-449. [PMID: 30593464 PMCID: PMC6363426 DOI: 10.1084/jem.20180661] [Citation(s) in RCA: 116] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 10/31/2018] [Accepted: 11/28/2018] [Indexed: 12/16/2022] Open
Abstract
Wnt5a from osteoblastic niche induces and maintains the dormancy of prostate cancer cells in bone and inhibits bone metastasis in a preventive manner, uncovering a potential therapeutic utility of Wnt5a in the treatment of bone metastatic prostate cancer. In a substantial fraction of prostate cancer (PCa) patients, bone metastasis appears after years or even decades of latency. Canonical Wnt/β-catenin signaling has been proposed to be implicated in dormancy of cancer cells. However, how these tumor cells are kept dormant and recur under control of Wnt/β-catenin signaling derived from bone microenvironment remains unknown. Here, we report that Wnt5a from osteoblastic niche induces dormancy of PCa cells in a reversible manner in vitro and in vivo via inducing Siah E3 Ubiquitin Protein Ligase 2 (SIAH2) expression, which represses Wnt/β-catenin signaling. Furthermore, this effect of Wnt5a-induced dormancy of PCa cells depends on receptor tyrosine kinase-like orphan receptor 2 (ROR2), and a negative correlation of ROR2 expression with bone metastasis–free survival is observed in PCa patients. Therefore, these results demonstrate that Wnt5a/ROR2/SIAH2 signaling axis plays a crucial role in inducing and maintaining PCa cells dormancy in bone, suggesting a potential therapeutic utility of Wnt5a via inducing dormancy of PCa cells in bone.
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Affiliation(s)
- Dong Ren
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Yuhu Dai
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Qing Yang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Xin Zhang
- Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China.,Clinical Experimental Center, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, China
| | - Wei Guo
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Liping Ye
- Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Shuai Huang
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Xu Chen
- Department of Urology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yingrong Lai
- Department of Pathology, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hong Du
- Department of Pathology, the First People's Hospital of Guangzhou City, Guangzhou, China
| | - Chuyong Lin
- Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China
| | - Xinsheng Peng
- Department of Orthopedic Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China .,Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, Guangzhou, China
| | - Libing Song
- Department of Experimental Research, State Key Laboratory of Oncology in Southern China, Sun Yat-sen University Cancer Center, Guangzhou, China .,Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
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41
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Bi L, Xie C, Yao M, Thae Hnit SS, Vignarajan S, Wang Y, Wang Q, Xi Z, Xu H, Li Z, de Souza P, Tee A, Wong M, Liu T, Zhao X, Zhou J, Xu L, Dong Q. The histone chaperone complex FACT promotes proliferative switch of G 0 cancer cells. Int J Cancer 2018; 145:164-178. [PMID: 30548853 DOI: 10.1002/ijc.32065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 11/05/2018] [Accepted: 12/04/2018] [Indexed: 12/15/2022]
Abstract
Cancer cell repopulation through cell cycle re-entry by quiescent (G0 ) cell is thought to be an important mechanism behind treatment failure and cancer recurrence. Facilitates Chromatin Transcription (FACT) is involved in DNA repair, replication and transcription by eviction of histones or loosening their contact with DNA. While FACT expression is known to be high in a range of cancers, the biological significance of the aberrant increase is not clear. We found that in prostate and lung cancer cells FACT mRNA and protein levels were low at G0 compared to the proliferating state but replenished upon cell cycle re-entry. Silencing of FACT with Dox-inducible shRNA hindered cell cycle re-entry by G0 cancer cells, which could be rescued by ectopic expression of FACT. An increase in SKP2, c-MYC and PIRH2 and a decrease in p27 protein levels seen upon cell cycle re-entry were prevented or diminished when FACT was silenced. Further, using mVenus-p27K- infected cancer cells to measure p27 degradation capacity, we confirm that inhibition of FACT at release from quiescence suppressed the p27 degradation capacity resulting in an increased mVenus-p27K- signal. In conclusion, FACT plays an important role in promoting the transition from G0 to the proliferative state and can be a potential therapeutic target to prevent prostate and lung cancer from progression and recurrence.
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Affiliation(s)
- Ling Bi
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Chanlu Xie
- School of Science and Health, Western Sydney University, Sydney, NSW, Australia.,Central Clinical School and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Mu Yao
- Central Clinical School and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Su Su Thae Hnit
- School of Science and Health, Western Sydney University, Sydney, NSW, Australia
| | - Soma Vignarajan
- Central Clinical School and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia
| | - Yilun Wang
- Central Clinical School and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Qian Wang
- Origins of Cancer Laboratory, Centenary Institute, Camperdown, NSW, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, Australia
| | - Zhichao Xi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
| | - Hongxi Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
| | - Zhong Li
- Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Paul de Souza
- School of Medicine, Western Sydney University, Sydney, NSW, Australia
| | - Andrew Tee
- Children's Cancer Institute Australia for Medical Research, Sydney, NSW, Australia.,Center for Childhood Cancer Research, UNSW Medicine, Sydney, NSW, Australia
| | - Matthew Wong
- Children's Cancer Institute Australia for Medical Research, Sydney, NSW, Australia.,Center for Childhood Cancer Research, UNSW Medicine, Sydney, NSW, Australia
| | - Tao Liu
- Children's Cancer Institute Australia for Medical Research, Sydney, NSW, Australia.,Center for Childhood Cancer Research, UNSW Medicine, Sydney, NSW, Australia
| | - Xiaodong Zhao
- Shanghai Center for Systems Biology, Shanghai Jiao Tong University, Shanghai, China
| | - Jia Zhou
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ling Xu
- Department of Oncology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qihan Dong
- School of Science and Health, Western Sydney University, Sydney, NSW, Australia.,Central Clinical School and Charles Perkins Centre, The University of Sydney, Sydney, NSW, Australia.,Department of Endocrinology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
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42
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Velasco-Hernandez T, Soneji S, Hidalgo I, Erlandsson E, Cammenga J, Bryder D. Hif-1α Deletion May Lead to Adverse Treatment Effect in a Mouse Model of MLL-AF9-Driven AML. Stem Cell Reports 2018; 12:112-121. [PMID: 30595549 PMCID: PMC6335588 DOI: 10.1016/j.stemcr.2018.11.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 11/30/2018] [Accepted: 11/30/2018] [Indexed: 12/14/2022] Open
Abstract
Relapse of acute myeloid leukemia (AML) remains a significant clinical challenge due to limited therapeutic options and poor prognosis. Leukemic stem cells (LSCs) are the cellular units responsible for relapse in AML, and strategies that target LSCs are thus critical. One proposed potential strategy to this end is to break the quiescent state of LSCs, thereby sensitizing LSCs to conventional cytostatics. The hypoxia-inducible factor (HIF) pathway is a main driver of cellular quiescence and a potential therapeutic target, with precedence from both solid cancers and leukemias. Here, we used a conditional knockout Hif-1α mouse model together with a standard chemotherapy regimen to evaluate LSC targeting in AML. Contrary to expectation, our studies revealed that Hif-1α-deleted-leukemias displayed a faster disease progression after chemotherapy. Our studies thereby challenge the general notion of cancer stem cell sensitization by inhibition of the HIF pathway, and warrant caution when applying HIF inhibition in combination with chemotherapy in AML. Deletion of Hif-1α accelerates the progression of chemotherapy-treated MLL-AF9-AML Deletion of Hif-1α does not decrease LSC frequency after chemotherapy Chemotherapy targets more mature cells indicated by transcriptional analysis Hif-1α deletion affects few transcriptional pathways in AML cells
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Affiliation(s)
- Talia Velasco-Hernandez
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University, BMC B12, Sölvegatan 17, 22184 Lund, Sweden.
| | - Shamit Soneji
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University, BMC B12, Sölvegatan 17, 22184 Lund, Sweden
| | - Isabel Hidalgo
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University, BMC B12, Sölvegatan 17, 22184 Lund, Sweden
| | - Eva Erlandsson
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University, BMC B12, Sölvegatan 17, 22184 Lund, Sweden
| | - Jörg Cammenga
- Department of Hematology, Linköping University Hospital, 58183 Linköping, Sweden; Department of Clinical and Experimental Medicine, Linköping University, 58183 Linköping, Sweden
| | - David Bryder
- Division of Molecular Hematology, Lund Stem Cell Center, Lund University, BMC B12, Sölvegatan 17, 22184 Lund, Sweden; Sahlgrenska Cancer Center, Gothenburg University, 40530 Gothenburg, Sweden.
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43
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Singh A, Yadav CB, Tabassum N, Bajpeyee AK, Verma V. Stem cell niche: Dynamic neighbor of stem cells. Eur J Cell Biol 2018; 98:65-73. [PMID: 30563738 DOI: 10.1016/j.ejcb.2018.12.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/09/2018] [Accepted: 12/11/2018] [Indexed: 12/19/2022] Open
Abstract
Stem cell niche is a specialized and dynamic microenvironment around the stem cells which plays a critical role in maintaining the stemness properties of stem cells. Over the years, advancement in the research activity has revealed the various important aspects of stem cell niche including cell-cell interaction, cell-extracellular matrix interaction, a large number of soluble signaling factors and various biochemical and biophysical cues (such as oxygen tension, flow, and shear and pore size). Stem cells have the potential to be a powerful tool in regenerative medicine due to their self-renewal property and immense differentiation potential. Recent progresses in in vitro culture conditions of embryonic stem cells, adult stem cells and induced pluripotent stem cells have enabled the researchers to investigate and understand the role of the microenvironment in stem cell properties. The engineered artificial stem cell niche has led to a better execution of stem cells in regenerative medicine. Here we elucidate the key components of stem cell niche and their role in niche engineering and stem cell therapeutics.
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Affiliation(s)
- Anshuman Singh
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - C B Yadav
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - N Tabassum
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - A K Bajpeyee
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India
| | - V Verma
- Centre of Biotechnology, Nehru Science Complex, University of Allahabad, Allahabad, India.
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44
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Fonseca ICCFE, da Luz FAC, Uehara IA, Silva MJB. Cell-adhesion molecules and their soluble forms: Promising predictors of "tumor progression" and relapse in leukemia. Tumour Biol 2018; 40:1010428318811525. [PMID: 30486756 DOI: 10.1177/1010428318811525] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Some surface markers are used to discriminate certain leukemic subpopulations that retain a greater oncogenic potential than others, and, for this reason, they were termed as leukemic stem cells, similar to the concept of cancer stem cells in carcinoma. Among these surface markers are proteins involved in cell-cell adhesion or cell-matrix adhesion, and they may play a role in the relapse of leukemia, similar to metastasis in carcinomas. The most important are epithelial cadherin, neural cadherin, epithelial cell-adhesion molecule, and CD44, which can be cleaved and released, and their soluble forms were found increased in serum levels of cancer patients, being implicated, in some cases, with progression, metastases, and relapse. In this review, we highlighted the role of these four adhesion molecules in carcinomas and hematological malignancies, mainly leukemia, and discuss if the serum levels of soluble forms can be correlated with the surface protein status on the leukemic cells. Accession of the soluble forms looks attractive, but their use as markers in cancer must be studied in association with other parameters, as there are significant changes in levels in other pathological conditions besides cancer. Studies correlating the levels of the forms with the status of the membrane-bound proteins in leukemic (stem) cells and correlating those parameters with relapse in leukemia may afford important knowledge and applicability of those serum markers in clinical practice. For instance, the expression of the membrane-bound forms of these adhesion proteins may have promising clinical use in leukemia and other hematological malignancies.
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Affiliation(s)
| | - Felipe Andrés Cordero da Luz
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
- 2 Nucleus of Cancer Prevention and Research, Cancer Hospital, Federal University of Uberlândia, Uberlândia, Brazil
| | - Isadora Akemi Uehara
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
| | - Marcelo José Barbosa Silva
- 1 Laboratory of Tumor Biomarkers and Osteoimmunology, Institute of Biomedical Sciences, Federal University of Uberlândia, Uberlândia, Brazil
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45
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Dehler S, Lou WPK, Gao L, Skabkin M, Dällenbach S, Neumann A, Martin-Villalba A. An Immune-CNS Axis Activates Remote Hippocampal Stem Cells Following Spinal Transection Injury. Front Mol Neurosci 2018; 11:443. [PMID: 30618602 PMCID: PMC6299844 DOI: 10.3389/fnmol.2018.00443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Accepted: 11/16/2018] [Indexed: 12/30/2022] Open
Abstract
External stimuli such as injury, learning, or stress influence the production of neurons by neural stem cells (NSCs) in the adult mammalian brain. These external stimuli directly impact stem cell activity by influencing areas directly connected or in close proximity to the neurogenic niches of the adult brain. However, very little is known on how distant injuries affect NSC activation state. In this study, we demonstrate that a thoracic spinal transection injury activates the distally located hippocampal-NSCs. This activation leads to a transient increase production of neurons that functionally integrate to improve animal's performance in hippocampal-related memory tasks. We further show that interferon-CD95 signaling is required to promote injury-mediated activation of remote NSCs. Thus, we identify an immune-CNS axis responsible for injury-mediated activation of remotely located NSCs.
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Affiliation(s)
- Sascha Dehler
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Wilson Pak-Kin Lou
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Liang Gao
- The Brain Cognition and Brain Disease Institute, ShenZhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Maxim Skabkin
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Sabrina Dällenbach
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Andreas Neumann
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Ana Martin-Villalba
- Molecular Neurobiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
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46
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Dianat-Moghadam H, Heidarifard M, Jahanban-Esfahlan R, Panahi Y, Hamishehkar H, Pouremamali F, Rahbarghazi R, Nouri M. Cancer stem cells-emanated therapy resistance: Implications for liposomal drug delivery systems. J Control Release 2018; 288:62-83. [DOI: 10.1016/j.jconrel.2018.08.043] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 12/17/2022]
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47
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Bloch J, Spertini O, Stucki A, Solly F, Blum S. Over 20 years of treatment-free remission after interferon-alpha monotherapy for chronic myeloid leukemia. Leuk Res 2018; 73:103-104. [DOI: 10.1016/j.leukres.2018.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 09/07/2018] [Accepted: 09/10/2018] [Indexed: 11/16/2022]
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48
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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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49
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Leukemic stem cell signatures identify novel therapeutics targeting acute myeloid leukemia. Blood Cancer J 2018; 8:52. [PMID: 29921955 PMCID: PMC6889502 DOI: 10.1038/s41408-018-0087-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Revised: 03/01/2018] [Accepted: 04/03/2018] [Indexed: 12/18/2022] Open
Abstract
Therapy for acute myeloid leukemia (AML) involves intense cytotoxic treatment and yet approximately 70% of AML are refractory to initial therapy or eventually relapse. This is at least partially driven by the chemo-resistant nature of the leukemic stem cells (LSCs) that sustain the disease, and therefore novel anti-LSC therapies could decrease relapses and improve survival. We performed in silico analysis of highly prognostic human AML LSC gene expression signatures using existing datasets of drug–gene interactions to identify compounds predicted to target LSC gene programs. Filtering against compounds that would inhibit a hematopoietic stem cell (HSC) gene signature resulted in a list of 151 anti-LSC candidates. Using a novel in vitro LSC assay, we screened 84 candidate compounds at multiple doses and confirmed 14 drugs that effectively eliminate human AML LSCs. Three drug families presenting with multiple hits, namely antihistamines (astemizole and terfenadine), cardiac glycosides (strophanthidin, digoxin and ouabain) and glucocorticoids (budesonide, halcinonide and mometasone), were validated for their activity against human primary AML samples. Our study demonstrates the efficacy of combining computational analysis of stem cell gene expression signatures with in vitro screening to identify novel compounds that target the therapy-resistant LSC at the root of relapse in AML.
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50
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Yagi K, Shimada A, Sendo T. Pharmacological inhibition of JAK3 enhances the antitumor activity of imatinib in human chronic myeloid leukemia. Eur J Pharmacol 2018; 825:28-33. [DOI: 10.1016/j.ejphar.2018.02.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/11/2018] [Accepted: 02/14/2018] [Indexed: 12/25/2022]
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