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MacLean MR, Walker OL, Arun RP, Fernando W, Marcato P. Informed by Cancer Stem Cells of Solid Tumors: Advances in Treatments Targeting Tumor-Promoting Factors and Pathways. Int J Mol Sci 2024; 25:4102. [PMID: 38612911 PMCID: PMC11012648 DOI: 10.3390/ijms25074102] [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: 02/28/2024] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024] Open
Abstract
Cancer stem cells (CSCs) represent a subpopulation within tumors that promote cancer progression, metastasis, and recurrence due to their self-renewal capacity and resistance to conventional therapies. CSC-specific markers and signaling pathways highly active in CSCs have emerged as a promising strategy for improving patient outcomes. This review provides a comprehensive overview of the therapeutic targets associated with CSCs of solid tumors across various cancer types, including key molecular markers aldehyde dehydrogenases, CD44, epithelial cellular adhesion molecule, and CD133 and signaling pathways such as Wnt/β-catenin, Notch, and Sonic Hedgehog. We discuss a wide array of therapeutic modalities ranging from targeted antibodies, small molecule inhibitors, and near-infrared photoimmunotherapy to advanced genetic approaches like RNA interference, CRISPR/Cas9 technology, aptamers, antisense oligonucleotides, chimeric antigen receptor (CAR) T cells, CAR natural killer cells, bispecific T cell engagers, immunotoxins, drug-antibody conjugates, therapeutic peptides, and dendritic cell vaccines. This review spans developments from preclinical investigations to ongoing clinical trials, highlighting the innovative targeting strategies that have been informed by CSC-associated pathways and molecules to overcome therapeutic resistance. We aim to provide insights into the potential of these therapies to revolutionize cancer treatment, underscoring the critical need for a multi-faceted approach in the battle against cancer. This comprehensive analysis demonstrates how advances made in the CSC field have informed significant developments in novel targeted therapeutic approaches, with the ultimate goal of achieving more effective and durable responses in cancer patients.
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Affiliation(s)
- Maya R. MacLean
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (M.R.M.); (O.L.W.); (R.P.A.); (W.F.)
| | - Olivia L. Walker
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (M.R.M.); (O.L.W.); (R.P.A.); (W.F.)
| | - Raj Pranap Arun
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (M.R.M.); (O.L.W.); (R.P.A.); (W.F.)
| | - Wasundara Fernando
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (M.R.M.); (O.L.W.); (R.P.A.); (W.F.)
- Department of Biology, Acadia University, Wolfville, NS B4P 2R6, Canada
| | - Paola Marcato
- Department of Pathology, Dalhousie University, Halifax, NS B3H 4R2, Canada; (M.R.M.); (O.L.W.); (R.P.A.); (W.F.)
- Department of Microbiology and Immunology, Dalhousie University, Halifax, NS B3H 4R2, Canada
- Nova Scotia Health Authority, Halifax, NS B3H 4R2, Canada
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2
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Allert C, Müller-Tidow C, Blank MF. The relevance of the hematopoietic niche for therapy resistance in acute myeloid leukemia. Int J Cancer 2024; 154:197-209. [PMID: 37565773 DOI: 10.1002/ijc.34684] [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: 05/25/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/12/2023]
Abstract
The expansion of acute myeloid leukemia (AML) blasts not only suppresses normal hematopoiesis, but also alters the microenvironment. The interplay of different components of the bone marrow gives rise to altered metabolic states and activates signaling pathways which lead to resistance and impede effective therapy. Therefore, the underlying processes and mechanisms represent attractive therapeutic leverage points for overcoming therapy resistance in AML. Here, we briefly discuss resistance mechanisms based on cell interactions and secreted soluble factors in the hematopoietic niche and provide an overview of niche-related therapeutic targets currently undergoing preclinical and clinical investigation which may help improve the outcome in AML therapy.
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Affiliation(s)
- Catana Allert
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
- University of Heidelberg Medical Faculty, Heidelberg, Germany
| | - Carsten Müller-Tidow
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
- University of Heidelberg Medical Faculty, Heidelberg, Germany
- Molecular Medicine Partnership Unit (MMPU), University of Heidelberg and European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
| | - Maximilian Felix Blank
- Department of Medicine V, Hematology, Oncology and Rheumatology, University Hospital Heidelberg, Heidelberg, Germany
- Molecular Medicine Partnership Unit (MMPU), University of Heidelberg and European Molecular Biology Laboratory (EMBL), Heidelberg, Germany
- Division Proteomics of Stem Cells and Cancer, German Cancer Research Center (DKFZ), Heidelberg, Germany
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3
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Meng Q, Zhu R, Mao Y, Zhu S, Wu Y, Huang L, Ciechanover A, An J, Xu Y, Huang Z. Biological and mutational analyses of CXCR4-antagonist interactions and design of new antagonistic analogs. Biosci Rep 2023; 43:BSR20230981. [PMID: 38131305 PMCID: PMC10987480 DOI: 10.1042/bsr20230981] [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: 05/23/2023] [Revised: 11/05/2023] [Accepted: 11/21/2023] [Indexed: 12/23/2023] Open
Abstract
The chemokine receptor CXCR4 has become an attractive therapeutic target for HIV-1 infection, hematopoietic stem cell mobilization, and cancer metastasis. A wide variety of synthetic antagonists of CXCR4 have been developed and studied for a growing list of clinical applications. To compare the biological effects of different antagonists on CXCR4 functions and their common and/or distinctive molecular interactions with the receptor, we conducted head-to-head comparative cell-based biological and mutational analyses of the interactions with CXCR4 of eleven reported antagonists, including HC4319, DV3, DV1, DV1 dimer, V1, vMIP-II, CVX15, LY2510924, IT1t, AMD3100, and AMD11070 that were representative of different structural classes of D-peptides, L-peptide, natural chemokine, cyclic peptides, and small molecules. The results were rationalized by molecular modeling of CXCR4-antagonist interactions from which the common as well as different receptor binding sites of these antagonists were derived, revealing a number of important residues such as W94, D97, H113, D171, D262, and E288, mostly of negative charge. To further examine this finding, we designed and synthesized new antagonistic analogs by adding positively charged residues Arg to a D-peptide template to enhance the postulated charge-charge interactions. The newly designed analogs displayed significantly increased binding to CXCR4, which supports the notion that negatively charged residues of CXCR4 can engage in interactions with moieties of positive charge of the antagonistic ligands. The results from these mutational, modeling and new analog design studies shed new insight into the molecular mechanisms of different types of antagonists in recognizing CXCR4 and guide the development of new therapeutic agents.
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Affiliation(s)
- Qian Meng
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Ruohan Zhu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yujia Mao
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Siyu Zhu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Yi Wu
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Lina S.M. Huang
- Division of Infectious Diseases and Global Public Heath, Department of Medicine, School of Medicine, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, U.S.A
| | - Aaron Ciechanover
- The Rapport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa 3109601, Israel
- Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Jing An
- Division of Infectious Diseases and Global Public Heath, Department of Medicine, School of Medicine, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, U.S.A
| | - Yan Xu
- Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, Chinese University of Hong Kong, Shenzhen 518172, China
| | - Ziwei Huang
- School of Life Sciences, Tsinghua University, Beijing 100084, China
- Division of Infectious Diseases and Global Public Heath, Department of Medicine, School of Medicine, University of California at San Diego, 9500 Gilman Drive, La Jolla, CA 92093, U.S.A
- Ciechanover Institute of Precision and Regenerative Medicine, School of Medicine, Chinese University of Hong Kong, Shenzhen 518172, China
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4
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Bao S, Darvishi M, H Amin A, Al-Haideri MT, Patra I, Kashikova K, Ahmad I, Alsaikhan F, Al-Qaim ZH, Al-Gazally ME, Kiasari BA, Tavakoli-Far B, Sidikov AA, Mustafa YF, Akhavan-Sigari R. CXC chemokine receptor 4 (CXCR4) blockade in cancer treatment. J Cancer Res Clin Oncol 2023; 149:7945-7968. [PMID: 36905421 DOI: 10.1007/s00432-022-04444-w] [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: 05/25/2022] [Accepted: 10/19/2022] [Indexed: 03/12/2023]
Abstract
CXC chemokine receptor type 4 (CXCR4) is a member of the G protein-coupled receptors (GPCRs) superfamily and is specific for CXC chemokine ligand 12 (CXCL12, also known as SDF-1), which makes CXCL12/CXCR4 axis. CXCR4 interacts with its ligand, triggering downstream signaling pathways that influence cell proliferation chemotaxis, migration, and gene expression. The interaction also regulates physiological processes, including hematopoiesis, organogenesis, and tissue repair. Multiple evidence revealed that CXCL12/CXCR4 axis is implicated in several pathways involved in carcinogenesis and plays a key role in tumor growth, survival, angiogenesis, metastasis, and therapeutic resistance. Several CXCR4-targeting compounds have been discovered and used for preclinical and clinical cancer therapy, most of which have shown promising anti-tumor activity. In this review, we summarized the physiological signaling of the CXCL12/CXCR4 axis and described the role of this axis in tumor progression, and focused on the potential therapeutic options and strategies to block CXCR4.
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Affiliation(s)
- Shunshun Bao
- The First Clinical Medical College, Xuzhou Medical University, 221000, Xuzhou, China
| | - Mohammad Darvishi
- Infectious Diseases and Tropical Medicine Research Center (IDTMRC), Department of Aerospace and Subaquatic Medicine, AJA University of Medicinal Sciences, Tehran, Iran
| | - Ali H Amin
- Deanship of Scientific Research, Umm Al-Qura University, 21955, Makkah, Saudi Arabia
- Zoology Department, Faculty of Science, Mansoura University, 35516, Mansoura, Egypt
| | - Maysoon T Al-Haideri
- Department of Physiotherapy, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Indrajit Patra
- An Independent Researcher, National Institute of Technology Durgapur, Durgapur, West Bengal, India
| | | | - Irfan Ahmad
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Fahad Alsaikhan
- College of Pharmacy, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
| | | | | | - Bahman Abedi Kiasari
- Virology Department, Faculty of Veterinary Medicine, The University of Tehran, Tehran, Iran.
| | - Bahareh Tavakoli-Far
- Dietary Supplements and Probiotic Research Center, Alborz University of Medical Sciences, Karaj, Iran.
- Department of Physiology and Pharmacology, Faculty of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
| | - Akmal A Sidikov
- Rector, Ferghana Medical Institute of Public Health, Ferghana, Uzbekistan
| | - Yasser Fakri Mustafa
- Department of Pharmaceutical Chemistry, College of Pharmacy, University of Mosul, Mosul, 41001, Iraq
| | - Reza Akhavan-Sigari
- Department of Neurosurgery, University Medical Center Tuebingen, Tübingen, Germany
- Department of Health Care Management and Clinical Research, Collegium Humanum Warsaw Management University, Warsaw, Poland
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5
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Bahrami E, Schmid JP, Jurinovic V, Becker M, Wirth AK, Ludwig R, Kreissig S, Duque Angel TV, Amend D, Hunt K, Öllinger R, Rad R, Frenz JM, Solovey M, Ziemann F, Mann M, Vick B, Wichmann C, Herold T, Jayavelu AK, Jeremias I. Combined proteomics and CRISPR‒Cas9 screens in PDX identify ADAM10 as essential for leukemia in vivo. Mol Cancer 2023; 22:107. [PMID: 37422628 PMCID: PMC10329331 DOI: 10.1186/s12943-023-01803-0] [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: 10/01/2022] [Accepted: 06/08/2023] [Indexed: 07/10/2023] Open
Abstract
BACKGROUND Acute leukemias represent deadly malignancies that require better treatment. As a challenge, treatment is counteracted by a microenvironment protecting dormant leukemia stem cells. METHODS To identify responsible surface proteins, we performed deep proteome profiling on minute numbers of dormant patient-derived xenograft (PDX) leukemia stem cells isolated from mice. Candidates were functionally screened by establishing a comprehensive CRISPR‒Cas9 pipeline in PDX models in vivo. RESULTS A disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) was identified as an essential vulnerability required for the survival and growth of different types of acute leukemias in vivo, and reconstitution assays in PDX models confirmed the relevance of its sheddase activity. Of translational importance, molecular or pharmacological targeting of ADAM10 reduced PDX leukemia burden, cell homing to the murine bone marrow and stem cell frequency, and increased leukemia response to conventional chemotherapy in vivo. CONCLUSIONS These findings identify ADAM10 as an attractive therapeutic target for the future treatment of acute leukemias.
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Affiliation(s)
- Ehsan Bahrami
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Jan Philipp Schmid
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Vindi Jurinovic
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Department of Medicine III, LMU University Hospital, LMU Munich, Munich, Germany
| | - Martin Becker
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Anna-Katharina Wirth
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Romina Ludwig
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Sophie Kreissig
- Division of Transfusion Medicine, Cell Therapeutics and Haemostaseology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Tania Vanessa Duque Angel
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Diana Amend
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Katharina Hunt
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
| | - Rupert Öllinger
- Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine, and Department of Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Institute of Molecular Oncology and Functional Genomics, Technische Universität München, Munich, Germany
| | - Roland Rad
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- Center for Translational Cancer Research (TranslaTUM), TUM School of Medicine, and Department of Medicine II, Klinikum rechts der Isar, Technische Universität München, Munich, Germany
- Institute of Molecular Oncology and Functional Genomics, Technische Universität München, Munich, Germany
| | - Joris Maximilian Frenz
- Proteomics and Cancer Cell Signaling Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, and Immunology, University of Heidelberg and Hopp Children’s Cancer Center (KiTZ), Heidelberg, Germany
| | - Maria Solovey
- Institute of Computational Biology, Helmholtz Center Munich, Munich, Germany
- Chair of Physiological Chemistry, Biomedical Center (BMC), Faculty of Medicine, LMU Munich, Munich, Germany
| | - Frank Ziemann
- Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Department of Medicine III, LMU University Hospital, LMU Munich, Munich, Germany
| | - Matthias Mann
- Department of Proteomics and Signal Transduction, Max-Planck-Institute of Biochemistry, Munich, Germany
| | - Binje Vick
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
| | - Christian Wichmann
- Division of Transfusion Medicine, Cell Therapeutics and Haemostaseology, LMU University Hospital, LMU Munich, Munich, Germany
| | - Tobias Herold
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- Laboratory for Experimental Leukemia and Lymphoma Research (ELLF), Department of Medicine III, LMU University Hospital, LMU Munich, Munich, Germany
| | - Ashok Kumar Jayavelu
- Proteomics and Cancer Cell Signaling Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Pediatric Oncology, Hematology, and Immunology, University of Heidelberg and Hopp Children’s Cancer Center (KiTZ), Heidelberg, Germany
- Department of Proteomics and Signal Transduction, Max-Planck-Institute of Biochemistry, Munich, Germany
| | - Irmela Jeremias
- Research Unit Apoptosis in Hematopoietic Stem Cells, Helmholtz Center Munich, Feodor-Lynen-Str. 21, Munich, 81377 Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- Department of Pediatrics, Dr. Von Hauner Children’s Hospital, LMU University Hospital, LMU Munich, Munich, Germany
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6
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Skelding KA, Barry DL, Theron DZ, Lincz LF. Bone Marrow Microenvironment as a Source of New Drug Targets for the Treatment of Acute Myeloid Leukaemia. Int J Mol Sci 2022; 24:563. [PMID: 36614005 PMCID: PMC9820412 DOI: 10.3390/ijms24010563] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/05/2022] [Accepted: 12/22/2022] [Indexed: 12/30/2022] Open
Abstract
Acute myeloid leukaemia (AML) is a heterogeneous disease with one of the worst survival rates of all cancers. The bone marrow microenvironment is increasingly being recognised as an important mediator of AML chemoresistance and relapse, supporting leukaemia stem cell survival through interactions among stromal, haematopoietic progenitor and leukaemic cells. Traditional therapies targeting leukaemic cells have failed to improve long term survival rates, and as such, the bone marrow niche has become a promising new source of potential therapeutic targets, particularly for relapsed and refractory AML. This review briefly discusses the role of the bone marrow microenvironment in AML development and progression, and as a source of novel therapeutic targets for AML. The main focus of this review is on drugs that modulate/target this bone marrow microenvironment and have been examined in in vivo models or clinically.
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Affiliation(s)
- Kathryn A. Skelding
- Cancer Cell Biology Research Group, School of Biomedical Sciences and Pharmacy, College of Health Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW 2308, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Daniel L. Barry
- Cancer Cell Biology Research Group, School of Biomedical Sciences and Pharmacy, College of Health Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW 2308, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Danielle Z. Theron
- Cancer Cell Biology Research Group, School of Biomedical Sciences and Pharmacy, College of Health Medicine and Wellbeing, The University of Newcastle, Callaghan, NSW 2308, Australia
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
| | - Lisa F. Lincz
- Precision Medicine Research Program, Hunter Medical Research Institute, New Lambton Heights, NSW 2305, Australia
- Hunter Hematology Research Group, Calvary Mater Newcastle Hospital, Waratah, NSW 2298, Australia
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7
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Zhang M, Ge Y, Xu S, Fang X, Meng J, Yu L, Wang C, Liu J, Wen T, Yang Y, Wang C, Xu H. Nanomicelles co-loading CXCR4 antagonist and doxorubicin combat the refractory acute myeloid leukemia. Pharmacol Res 2022; 185:106503. [DOI: 10.1016/j.phrs.2022.106503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/27/2022] [Accepted: 10/09/2022] [Indexed: 10/31/2022]
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8
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Targeting CXCR4 and CD47 Receptors: An Overview of New and Old Molecules for a Biological Personalized Anticancer Therapy. Int J Mol Sci 2022; 23:ijms232012499. [PMID: 36293358 PMCID: PMC9604048 DOI: 10.3390/ijms232012499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/26/2022] Open
Abstract
Biological therapy, with its multifaceted applications, has revolutionized the treatment of tumors, mainly due to its ability to exclusively target cancer cells and reduce the adverse effects on normal tissues. This review focuses on the therapies targeting the CXCR4 and CD47 receptors. We surveyed the results of early clinical trials testing compounds classified as nonpeptides, small peptides, CXCR4 antagonists or specific antibodies whose activity reduces or completely blocks the intracellular signaling pathways and cell proliferation. We then examined antibodies and fusion proteins against CD47, the receptor that acts as a “do not eat me” signal to phagocytes escaping immune surveillance. Despite these molecules being tested in early clinical trials, some drawbacks are emerging that impair their use in practice. Finally, we examined the ImmunoGenic Surrender mechanism that involves crosstalk and co-internalization of CXCR4 and CD47 upon engagement of CXCR4 by ligands or other molecules. The favorable effect of such compounds is dual as CD47 surface reduction impact on the immune response adds to the block of CXCR4 proliferative potential. These results suggest that a combination of different therapeutic approaches has more beneficial effects on patients’ survival and may pave the way for new accomplishments in personalized anticancer therapy.
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9
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Liu G, Chen T, Zhang X, Ma X, Shi H. Small molecule inhibitors targeting the cancers. MedComm (Beijing) 2022; 3:e181. [PMID: 36254250 PMCID: PMC9560750 DOI: 10.1002/mco2.181] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 11/23/2022] Open
Abstract
Compared with traditional therapies, targeted therapy has merits in selectivity, efficacy, and tolerability. Small molecule inhibitors are one of the primary targeted therapies for cancer. Due to their advantages in a wide range of targets, convenient medication, and the ability to penetrate into the central nervous system, many efforts have been devoted to developing more small molecule inhibitors. To date, 88 small molecule inhibitors have been approved by the United States Food and Drug Administration to treat cancers. Despite remarkable progress, small molecule inhibitors in cancer treatment still face many obstacles, such as low response rate, short duration of response, toxicity, biomarkers, and resistance. To better promote the development of small molecule inhibitors targeting cancers, we comprehensively reviewed small molecule inhibitors involved in all the approved agents and pivotal drug candidates in clinical trials arranged by the signaling pathways and the classification of small molecule inhibitors. We discussed lessons learned from the development of these agents, the proper strategies to overcome resistance arising from different mechanisms, and combination therapies concerned with small molecule inhibitors. Through our review, we hoped to provide insights and perspectives for the research and development of small molecule inhibitors in cancer treatment.
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Affiliation(s)
- Gui‐Hong Liu
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Tao Chen
- Department of CardiologyThe First Affiliated Hospital of China Medical UniversityShenyangLiaoningChina
| | - Xin Zhang
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Xue‐Lei Ma
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
| | - Hua‐Shan Shi
- Department of BiotherapyState Key Laboratory of BiotherapyCancer Center, West China HospitalSichuan UniversityChengduChina
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10
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Viñado AC, Calvo IA, Cenzano I, Olaverri D, Cocera M, San Martin-Uriz P, Romero JP, Vilas-Zornoza A, Vera L, Gomez-Cebrian N, Puchades-Carrasco L, Lisi-Vega LE, Apaolaza I, Valera P, Guruceaga E, Granero-Molto F, Ripalda-Cemborain P, Luck TJ, Bullinger L, Planes FJ, Rifon JJ, Méndez-Ferrer S, Yusuf RZ, Pardo-Saganta A, Prosper F, Saez B. The bone marrow niche regulates redox and energy balance in MLL::AF9 leukemia stem cells. Leukemia 2022; 36:1969-1979. [PMID: 35618797 PMCID: PMC7614282 DOI: 10.1038/s41375-022-01601-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 05/09/2022] [Accepted: 05/11/2022] [Indexed: 01/14/2023]
Abstract
Eradicating leukemia requires a deep understanding of the interaction between leukemic cells and their protective microenvironment. The CXCL12/CXCR4 axis has been postulated as a critical pathway dictating leukemia stem cell (LSC) chemoresistance in AML due to its role in controlling cellular egress from the marrow. Nevertheless, the cellular source of CXCL12 in the acute myeloid leukemia (AML) microenvironment and the mechanism by which CXCL12 exerts its protective role in vivo remain unresolved. Here, we show that CXCL12 produced by Prx1+ mesenchymal cells but not by mature osteolineage cells provide the necessary cues for the maintenance of LSCs in the marrow of an MLL::AF9-induced AML model. Prx1+ cells promote survival of LSCs by modulating energy metabolism and the REDOX balance in LSCs. Deletion of Cxcl12 leads to the accumulation of reactive oxygen species and DNA damage in LSCs, impairing their ability to perpetuate leukemia in transplantation experiments, a defect that can be attenuated by antioxidant therapy. Importantly, our data suggest that this phenomenon appears to be conserved in human patients. Hence, we have identified Prx1+ mesenchymal cells as an integral part of the complex niche-AML metabolic intertwining, pointing towards CXCL12/CXCR4 as a target to eradicate parenchymal LSCs in AML.
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Affiliation(s)
- Ana C Viñado
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Isabel A Calvo
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
| | - Itziar Cenzano
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Danel Olaverri
- Tecnun Universidad de Navarra, School of Engineering, 20018, San Sebastian, Spain
| | - Miguel Cocera
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Patxi San Martin-Uriz
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Juan P Romero
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Amaia Vilas-Zornoza
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Laura Vera
- Regenerative Medicine Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Nuria Gomez-Cebrian
- Drug Discovery Unit, Instituto de Investigación Sanitaria La Fe, 46026, Valencia, Spain
| | | | - Livia E Lisi-Vega
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Hematology, University of Cambridge, and NHS Blood and Transplant, Cambridge, CB2 0AW, UK
| | - Iñigo Apaolaza
- Tecnun Universidad de Navarra, School of Engineering, 20018, San Sebastian, Spain
- Universidad de Navarra, Centro de Ingeniería Biomédica and DATAI Instituto de Ciencia de los Datos e Inteligencia Artificial, 31008, Pamplona, Spain
| | - Pablo Valera
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Elisabeth Guruceaga
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
| | - Froilan Granero-Molto
- Regenerative Medicine Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
- Cell Therapy Area, Clínica Universidad de Navarra, 31008, Pamplona, Spain
- Department of Orthopaedic Surgery and Traumatology, Clínica Universidad de Navarra, 31008, Pamplona, Spain
| | - Purificacion Ripalda-Cemborain
- Regenerative Medicine Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
- Department of Orthopaedic Surgery and Traumatology, Clínica Universidad de Navarra, 31008, Pamplona, Spain
| | - Tamara J Luck
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Hematology, Oncology, and Cancer Immunology, Berlin, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Lars Bullinger
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Department of Hematology, Oncology, and Cancer Immunology, Berlin, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Francisco J Planes
- Tecnun Universidad de Navarra, School of Engineering, 20018, San Sebastian, Spain
- Universidad de Navarra, Centro de Ingeniería Biomédica and DATAI Instituto de Ciencia de los Datos e Inteligencia Artificial, 31008, Pamplona, Spain
| | - José J Rifon
- Department of Hematology, Cell Therapy and Center of Cancer of the University of Navarra, Clínica Universidad de Navarra (CCUN), 31008, Pamplona, Spain
| | - Simón Méndez-Ferrer
- Wellcome-MRC Cambridge Stem Cell Institute, Department of Hematology, University of Cambridge, and NHS Blood and Transplant, Cambridge, CB2 0AW, UK
| | - Rushdia Z Yusuf
- Dana Farber Cancer Institute, 450 Brookline Ave, Boston, MA, 02215, USA
| | - Ana Pardo-Saganta
- Institute for Lung Health (ILH), Justus Liebig University Giessen, Giessen, 35392, Germany
- Universities of Giessen and Marburg Lung Center (UGMLC), Giessen, 35392, Germany
- German Center for Lung Research (DZL), Giessen, 35392, Germany
| | - Felipe Prosper
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain
- Department of Hematology, Cell Therapy and Center of Cancer of the University of Navarra, Clínica Universidad de Navarra (CCUN), 31008, Pamplona, Spain
| | - Borja Saez
- Hematology-Oncology Program, CIMA Universidad de Navarra, Instituto de Investigación Sanitaria de Navarra (IdiSNA), 31008, Pamplona, Spain.
- Centro de Investigación Biomédica en Red de Cáncer, CIBERONC, Madrid, Spain.
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11
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Tan Z, Kan C, Wong M, Sun M, Liu Y, Yang F, Wang S, Zheng H. Regulation of Malignant Myeloid Leukemia by Mesenchymal Stem Cells. Front Cell Dev Biol 2022; 10:857045. [PMID: 35756991 PMCID: PMC9213747 DOI: 10.3389/fcell.2022.857045] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Bone marrow microenvironment (BMM) has been proven to have benefits for both normal hematopoietic stem cell niche and pathological leukemic stem cell niche. In fact, the pathological leukemia microenvironment reprograms bone marrow niche cells, especially mesenchymal stem cells for leukemia progression, chemoresistance and relapse. The growth and differentiation of MSCs are modulated by leukemia stem cells. Moreover, chromatin abnormality of mesenchymal stem cells is sufficient for leukemia initiation. Here, we summarize the detailed relationship between MSC and leukemia. MSCs can actively and passively regulate the progression of myelogenous leukemia through cell-to-cell contact, cytokine-receptor interaction, and exosome communication. These behaviors benefit LSCs proliferation and survival and inhibit physiological hematopoiesis. Finally, we describe the recent advances in therapy targeting MSC hoping to provide new perspectives and therapeutic strategies for leukemia.
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Affiliation(s)
- Zhenya Tan
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Chen Kan
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Mandy Wong
- Department of Biological Sciences, Georgia Institute of Technology, Atlanta, GA, United States
| | - Minqiong Sun
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Yakun Liu
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Fan Yang
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Siying Wang
- Department of Pathophysiology, Anhui Medical University, Hefei, China
| | - Hong Zheng
- Department of Pathophysiology, Anhui Medical University, Hefei, China
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12
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Fodil S, Arnaud M, Vaganay C, Puissant A, Lengline E, Mooney N, Itzykson R, Zafrani L. Endothelial cells: major players in acute myeloid leukaemia. Blood Rev 2022; 54:100932. [DOI: 10.1016/j.blre.2022.100932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 12/17/2022]
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13
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Ortiz Zacarías NV, Bemelmans MP, Handel TM, de Visser KE, Heitman LH. Anticancer opportunities at every stage of chemokine function. Trends Pharmacol Sci 2021; 42:912-928. [PMID: 34521537 DOI: 10.1016/j.tips.2021.08.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 02/01/2023]
Abstract
The chemokine system, comprising 48 chemokines and 23 receptors, is critically involved in several hallmarks of cancer. Yet, despite extensive efforts from the pharmaceutical sector, only two drugs aimed at this system are currently approved for clinical use against cancer. To date, numerous pharmacological approaches have been developed to successfully intervene at different stages of chemokine function: (i) chemokine availability; (ii) chemokine-glycosaminoglycan binding; and (iii) chemokine receptor binding. Many of these strategies have been tested in preclinical cancer models, and some have advanced to clinical trials as potential anticancer therapies. Here we will review the strategies and growing pharmacological toolbox for manipulating the chemokine system in cancer, and address novel methods poised for future (pre)clinical testing.
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Affiliation(s)
- Natalia V Ortiz Zacarías
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands; Oncode Institute, Leiden University, Leiden, The Netherlands
| | - Martijn P Bemelmans
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands
| | - Tracy M Handel
- University of California San Diego, Skaggs School of Pharmacy and Pharmaceutical Sciences, La Jolla, CA, USA
| | - Karin E de Visser
- Oncode Institute, Leiden University, Leiden, The Netherlands; Division of Tumor Biology and Immunology, Netherlands Cancer Institute, Amsterdam, The Netherlands; Department of Immunology, Leiden University Medical Centre, Leiden, The Netherlands
| | - Laura H Heitman
- Division of Drug Discovery and Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, The Netherlands; Oncode Institute, Leiden University, Leiden, The Netherlands.
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14
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Kuek V, Hughes AM, Kotecha RS, Cheung LC. Therapeutic Targeting of the Leukaemia Microenvironment. Int J Mol Sci 2021; 22:6888. [PMID: 34206957 PMCID: PMC8267786 DOI: 10.3390/ijms22136888] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 06/18/2021] [Accepted: 06/23/2021] [Indexed: 02/06/2023] Open
Abstract
In recent decades, the conduct of uniform prospective clinical trials has led to improved remission rates and survival for patients with acute myeloid leukaemia and acute lymphoblastic leukaemia. However, high-risk patients continue to have inferior outcomes, where chemoresistance and relapse are common due to the survival mechanisms utilised by leukaemic cells. One such mechanism is through hijacking of the bone marrow microenvironment, where healthy haematopoietic machinery is transformed or remodelled into a hiding ground or "sanctuary" where leukaemic cells can escape chemotherapy-induced cytotoxicity. The bone marrow microenvironment, which consists of endosteal and vascular niches, can support leukaemogenesis through intercellular "crosstalk" with niche cells, including mesenchymal stem cells, endothelial cells, osteoblasts, and osteoclasts. Here, we summarise the regulatory mechanisms associated with leukaemia-bone marrow niche interaction and provide a comprehensive review of the key therapeutics that target CXCL12/CXCR4, Notch, Wnt/b-catenin, and hypoxia-related signalling pathways within the leukaemic niches and agents involved in remodelling of niche bone and vasculature. From a therapeutic perspective, targeting these cellular interactions is an exciting novel strategy for enhancing treatment efficacy, and further clinical application has significant potential to improve the outcome of patients with leukaemia.
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Affiliation(s)
- Vincent Kuek
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (V.K.); (A.M.H.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
- School of Biomedical Sciences, University of Western Australia, Perth, WA 6009, Australia
| | - Anastasia M. Hughes
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (V.K.); (A.M.H.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
| | - Rishi S. Kotecha
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (V.K.); (A.M.H.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
- Department of Clinical Haematology, Oncology, Blood and Marrow Transplantation, Perth Children’s Hospital, Perth, WA 6009, Australia
- School of Medicine, University of Western Australia, Perth, WA 6009, Australia
| | - Laurence C. Cheung
- Leukaemia Translational Research Laboratory, Telethon Kids Cancer Centre, Telethon Kids Institute, Perth, WA 6009, Australia; (V.K.); (A.M.H.); (R.S.K.)
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
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15
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Su L, Hu Z, Yang YG. Role of CXCR4 in the progression and therapy of acute leukaemia. Cell Prolif 2021; 54:e13076. [PMID: 34050566 PMCID: PMC8249790 DOI: 10.1111/cpr.13076] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/07/2021] [Accepted: 05/18/2021] [Indexed: 12/13/2022] Open
Abstract
CXCR4 is expressed on leukaemia cells and haematopoietic stem cells (HSCs), and its ligand stromal-derived factor 1 (SDF-1) is produced abundantly by stromal cells in the bone marrow (BM). The SDF-1/CXCR4 axis plays important roles in homing to and retention in the protective BM microenvironment of malignant leukaemia cells and normal HSCs. CXCR4 expression is regulated by multiple mechanisms and the level of CXCR4 expression on leukaemia cells has prognostic indications in patients with acute leukaemia. CXCR4 antagonists can mobilize leukaemia cells from BM to circulation, which render them effectively eradicated by chemotherapeutic agents, small molecular inhibitors or hypomethylating agents. Therefore, such combinational therapies have been tested in clinical trials. However, new evidence emerged that drug-resistant leukaemia cells were not affected by CXCR4 antagonists, and the migration of certain leukaemia cells to the leukaemia niche was independent of SDF-1/CXCR4 axis. In this review, we summarize the role of CXCR4 in progression and treatment of acute leukaemia, with a focus on the potential of CXCR4 as a therapeutic target for acute leukaemia. We also discuss the potential value of using CXCR4 antagonists as chemosensitizer for conditioning regimens and immunosensitizer for graft-vs-leukaemia effects of allogeneic haematopoietic stem cell transplantation.
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Affiliation(s)
- Long Su
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, The First Hospital, Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China.,International Center of Future Science, Jilin University, Changchun, China.,Department of Hematology, The First Hospital, Jilin University, Changchun, China
| | - Zheng Hu
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, The First Hospital, Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China
| | - Yong-Guang Yang
- Key Laboratory of Organ Regeneration & Transplantation of the Ministry of Education, The First Hospital, Jilin University, Changchun, China.,National-Local Joint Engineering Laboratory of Animal Models for Human Diseases, Changchun, China.,International Center of Future Science, Jilin University, Changchun, China
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16
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Schwenger E, Steidl U. An evolutionary approach to clonally complex hematologic disorders. Blood Cancer Discov 2021; 2:201-215. [PMID: 34027415 DOI: 10.1158/2643-3230.bcd-20-0219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Emerging clonal complexity has brought into question the way in which we perceive and, in turn, treat disorders of the hematopoietic system. Former models of cell-intrinsic clonal dominance driven by acquisition of driver genes in a stereotypic sequence are often insufficient in explaining observations such as clonal hematopoiesis, and new paradigms are in order. Here, we review the evidence both within the hematologic malignancy field and also borrow from perspectives rooted in evolutionary biology to reframe pathogenesis of hematologic disorders as dynamic processes involving complex interplays of genetic and non-genetic subclones and the tissue microenvironment in which they reside.
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Affiliation(s)
- Emily Schwenger
- Albert Einstein College of Medicine - Montefiore Health System, Bronx, NY, U.S.A
| | - Ulrich Steidl
- Departments of Cell Biology, and Medicine (Oncology), Blood Cancer Institute, Albert Einstein Cancer Center, Gottesman Institute for Stem Cell Research and Regenerative Medicine
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17
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Martin M, Mayer IA, Walenkamp AME, Lapa C, Andreeff M, Bobirca A. At the Bedside: Profiling and treating patients with CXCR4-expressing cancers. J Leukoc Biol 2020; 109:953-967. [PMID: 33089889 DOI: 10.1002/jlb.5bt1219-714r] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 08/27/2020] [Accepted: 08/27/2020] [Indexed: 12/18/2022] Open
Abstract
The chemokine receptor, C-X-C chemokine receptor type 4 (CXCR4) and its ligand, C-X-C motif chemokine 12, are key mediators of hematopoietic cell trafficking. Their roles in the proliferation and metastasis of tumor cells, induction of angiogenesis, and invasive tumor growth have been recognized for over 2 decades. CXCR4 is a promising target for imaging and therapy of both hematologic and solid tumors. To date, Sanofi Genzyme's plerixafor is the only marketed CXCR4 inhibitor (i.e., Food and Drug Administration-approved in 2008 for stem cell mobilization). However, several new CXCR4 inhibitors are now being investigated as potential therapies for a variety of fluid and solid tumors. These small molecules, peptides, and Abs include balixafortide (POL6326, Polyphor), mavorixafor (X4P-001, X4 Pharmaceuticals), motixafortide (BL-8040, BioLineRx), LY2510924 (Eli Lilly), and ulocuplumab (Bristol-Myers Squibb). Early clinical evidence has been encouraging, for example, with motixafortide and balixafortide, and the CXCR4 inhibitors appear to be generally safe and well tolerated. Molecular imaging is increasingly being used for effective patient selection before, or early during CXCR4 inhibitor treatment. The use of radiolabeled theranostics that combine diagnostics and therapeutics is an additional intriguing approach. The current status and future directions for radioimaging and treating patients with CXCR4-expressing hematologic and solid malignancies are reviewed. See related review - At the Bench: Pre-Clinical Evidence for Multiple Functions of CXCR4 in Cancer. J. Leukoc. Biol. xx: xx-xx; 2020.
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Affiliation(s)
- Miguel Martin
- Oncology Department, Instituto de Investigación Sanitaria Gregorio Marañón, Universidad Complutense de Madrid, Madrid, Spain
| | - Ingrid A Mayer
- Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Annemiek M E Walenkamp
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Constantin Lapa
- Nuclear Medicine, Medical Faculty, University of Augsburg, Augsburg, Germany
| | - Michael Andreeff
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas, Maryland Anderson Cancer Center, Houston, Texas, USA
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18
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Chen WC, Hu G, Hazlehurst LA. Contribution of the bone marrow stromal cells in mediating drug resistance in hematopoietic tumors. Curr Opin Pharmacol 2020; 54:36-43. [PMID: 32898723 PMCID: PMC7770000 DOI: 10.1016/j.coph.2020.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/31/2020] [Accepted: 08/06/2020] [Indexed: 12/21/2022]
Abstract
The bone marrow microenvironment (BMM) provides input via production of cytokines, chemokines, extracellular matrixes in the context of lower oxygen levels that influences self-renewal, survival, differentiation, progression, and therapeutic resistance of multiple myeloma and leukemic cells. Within the context of the BMM, tumor cells are supported by osteoblasts, bone marrow stromal cells (BMSCs), fibroblasts, myeloid cells, endothelial cells and blood vessels, as well as extracellular matrix (ECM) that contribute to tumor progression. Environmental mediated-drug resistance (EM-DR) contains cell adhesion-mediated drug resistance (CAM-DR) and soluble factor-mediated drug resistance (SM-DR) that contributes to de novo drug resistance. In this review, we focus on the crosstalk between the BMM and tumor cells as well as mechanisms underlying the BMM contributing to drug resistance in hematologic malignancies.
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Affiliation(s)
- Wei-Chih Chen
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV 26506 USA; Cancer Center, West Virginia University, Morgantown, WV 26506 USA
| | - Gangqing Hu
- Cancer Center, West Virginia University, Morgantown, WV 26506 USA; Department of Microbiology, Immunology and Cell Biology, School of Medicine, West Virginia University, Morgantown, WV 26506 USA
| | - Lori A Hazlehurst
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV 26506 USA; Cancer Center, West Virginia University, Morgantown, WV 26506 USA.
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19
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Cancilla D, Rettig MP, DiPersio JF. Targeting CXCR4 in AML and ALL. Front Oncol 2020; 10:1672. [PMID: 33014834 PMCID: PMC7499473 DOI: 10.3389/fonc.2020.01672] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 07/29/2020] [Indexed: 12/13/2022] Open
Abstract
The interaction of acute myeloid leukemia (AML) and acute lymphoblastic leukemia (ALL) blasts with the bone marrow microenvironment regulates self-renewal, growth signaling, as well as chemotherapy resistance. The chemokine receptor, CXC receptor 4 (CXCR4), with its ligand chemokine ligand 12 (CXCL12), plays a key role in the survival and migration of normal and malignant stem cells to the bone marrow. High expression of CXCR4 on AML and ALL blasts has been shown to be a predictor of poor prognosis for these diseases. Several small molecule inhibitors, short peptides, antibodies, and antibody drug conjugates have been developed for the purposes of more effective targeting and killing of malignant cells expressing CXCR4. In this review we will discuss recent results and strategies in targeting CXCR4 with these agents in patients with AML or ALL.
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Affiliation(s)
| | | | - John F. DiPersio
- Division of Oncology, Department of Medicine, Washington University School of Medicine, St. Louis, MO, United States
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20
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Meng J, Ge Y, Xing H, Wei H, Xu S, Liu J, Yan D, Wen T, Wang M, Fang X, Ma L, Yang Y, Wang C, Wang J, Xu H. Synthetic CXCR4 Antagonistic Peptide Assembling with Nanoscaled Micelles Combat Acute Myeloid Leukemia. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2001890. [PMID: 32608185 DOI: 10.1002/smll.202001890] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/22/2020] [Indexed: 06/11/2023]
Abstract
Acute myeloid leukemia (AML) is the most common adult acute leukemia with very low survival rate due to drug resistance and high relapse rate. The C-X-C chemokine receptor 4 (CXCR4) is highly expressed by AML cells, actively mediating chemoresistance and reoccurrence. Herein, a chemically synthesized CXCR4 antagonistic peptide E5 is fabricated to micelle formulation (M-E5) and applied to refractory AML mice, and its therapeutic effects and pharmacokinetics are investigated. Results show that M-E5 can effectively block the surface CXCR4 in leukemic cells separated from bone marrow (BM) and spleen, and inhibit the C-X-C chemokine ligand 12-mediated migration. Subcutaneous administration of M-E5 significantly inhibits the engraftment of leukemic cells in spleen and BM, and mobilizes residue leukemic cells into peripheral blood, reducing organs' burden and significantly prolonging the survival of AML mice. M-E5 can also increase the efficacy of combining regime of homoharringtonine and doxorubicin. Ribonucleic acid sequencing demonstrates that the therapeutic effect is contributed by inhibiting proliferation and enhancing apoptosis and differentiation, all related to the CXCR4 signaling blockade. M-E5 reaches the concentration peak at 2 h after administration with a half-life of 14.5 h in blood. In conclusion, M-E5 is a novel promising therapeutic candidate for refractory AML treatment.
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Affiliation(s)
- Jie Meng
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Yangyang Ge
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Haiyan Xing
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Hui Wei
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Shilin Xu
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Jian Liu
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Doudou Yan
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Tao Wen
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
| | - Min Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Xiaocui Fang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lilusi Ma
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanlian Yang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chen Wang
- CAS Key Laboratory of Biological Effects of Nanomaterials and Nanosafety, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jianxiang Wang
- State Key Laboratory of Experimental Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, 300020, China
| | - Haiyan Xu
- Institute of Basic Medical Sciences Chinese Academy of Medical Sciences, School of Basic Medicine Peking Union Medical College, Beijing, 100005, China
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21
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Villatoro A, Konieczny J, Cuminetti V, Arranz L. Leukemia Stem Cell Release From the Stem Cell Niche to Treat Acute Myeloid Leukemia. Front Cell Dev Biol 2020; 8:607. [PMID: 32754595 PMCID: PMC7367216 DOI: 10.3389/fcell.2020.00607] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 06/19/2020] [Indexed: 01/06/2023] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous, complex, and deadly disease, whose treatment has hardly evolved for decades and grounds on the use of intensive chemotherapy regimens. Chemotherapy helps reduce AML bulk, but promotes relapse in the long-run by selection of chemoresistant leukemia stem cells (LSC). These may diversify and result in progression to more aggressive forms of AML. In vivo models suggest that the bone marrow stem cell niche helps LSC stay dormant and protected from chemotherapy. Here, we summarize relevant changes in stem cell niche homing and adhesion of AML LSC vs. healthy hematopoietic stem cells, and provide an overview of clinical trials aiming at targeting these processes for AML treatment and future directions within this field. Promising results with various non-mutation-targeted novel therapies directed to LSC eradication via interference with their anchoring to the stem cell niche have encouraged on-going or future advanced phase III clinical trials. In the coming years, we may see a shift in the focus of AML treatment to LSC-directed therapies if the prospect of improved cure rates holds true. In the future, AML treatment should lean toward personalized therapies using combinations of these compounds plus mutation-targeted agents and/or targeted delivery of chemotherapy, aiming at LSC eradication with reduced side effects.
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Affiliation(s)
- Alicia Villatoro
- Stem Cell Aging and Cancer Research Group, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Joanna Konieczny
- Stem Cell Aging and Cancer Research Group, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Vincent Cuminetti
- Stem Cell Aging and Cancer Research Group, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Tromsø, Norway
| | - Lorena Arranz
- Stem Cell Aging and Cancer Research Group, Department of Medical Biology, Faculty of Health Sciences, UiT - The Arctic University of Norway, Tromsø, Norway.,Norwegian Center for Molecular Medicine (NCMM), University of Oslo, Oslo, Norway
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22
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Kim BR, Jung SH, Han AR, Park G, Kim HJ, Yuan B, Battula VL, Andreeff M, Konopleva M, Chung YJ, Cho BS. CXCR4 Inhibition Enhances Efficacy of FLT3 Inhibitors in FLT3-Mutated AML Augmented by Suppressed TGF-b Signaling. Cancers (Basel) 2020; 12:cancers12071737. [PMID: 32629802 PMCID: PMC7407511 DOI: 10.3390/cancers12071737] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 04/18/2020] [Accepted: 04/20/2020] [Indexed: 12/13/2022] Open
Abstract
Given the proven importance of the CXCL12/CXCR4 axis in the stroma–acute myeloid leukemia (AML) interactions and the rapid emergence of resistance to FLT3 inhibitors, we investigated the efficacy and safety of a novel CXCR4 inhibitor, LY2510924, in combination with FLT3 inhibitors in preclinical models of AML with FLT3-ITD mutations (FLT3-ITD-AML). Quizartinib, a potent FLT3 inhibitor, induced apoptosis in FLT3-ITD-AML, while LY2510924 blocked surface CXCR4 without inducing apoptosis. LY2510924 significantly reversed stroma-mediated resistance against quizartinib mainly through the MAPK pathway. In mice with established FLT3-ITD-AML, LY2510924 induced durable mobilization and differentiation of leukemia cells, resulting in enhanced anti-leukemia effects when combined with quizartinib, whereas transient effects were seen on non-leukemic blood cells in immune-competent mice. Sequencing of the transcriptome of the leukemic cells surviving in vivo treatment with quizartinib and LY2510924 revealed that genes related to TGF-β signaling may confer resistance against the drug combination. In co-culture experiments of FLT3-ITD-AML and stromal cells, both silencing of TGF-β in stromal cells or TGF-β-receptor kinase inhibitor enhanced apoptosis by combined treatment. Disruption of the CXCL12/CXCR4 axis in FLT3-ITD-AML by LY2510924 and its negligible effects on normal immunocytes could safely enhance the potency of quizartinib, which may be further improved by blockade of TGF-β signaling.
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Affiliation(s)
- Bo-Reum Kim
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (B.-R.K.); (A.-R.H.); (H.-J.K.)
| | - Seung-Hyun Jung
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
- Department of Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - A-Reum Han
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (B.-R.K.); (A.-R.H.); (H.-J.K.)
| | - Gyeongsin Park
- Department of Pathology, College of Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea;
| | - Hee-Je Kim
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (B.-R.K.); (A.-R.H.); (H.-J.K.)
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Bin Yuan
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (B.Y.); (V.L.B.); (M.A.)
| | - Venkata Lokesh Battula
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (B.Y.); (V.L.B.); (M.A.)
| | - Michael Andreeff
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (B.Y.); (V.L.B.); (M.A.)
| | - Marina Konopleva
- Department of Leukemia, the University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA;
| | - Yeun-Jun Chung
- Department of Cancer Evolution Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence: (Y.-J.C.); (B.-S.C.)
| | - Byung-Sik Cho
- Leukemia Research Institute, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (B.-R.K.); (A.-R.H.); (H.-J.K.)
- Department of Hematology, Catholic Hematology Hospital, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Section of Molecular Hematology and Therapy, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA; (B.Y.); (V.L.B.); (M.A.)
- Correspondence: (Y.-J.C.); (B.-S.C.)
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23
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Kötzner L, Huck B, Garg S, Urbahns K. Small molecules-Giant leaps for immuno-oncology. PROGRESS IN MEDICINAL CHEMISTRY 2020; 59:1-62. [PMID: 32362326 DOI: 10.1016/bs.pmch.2019.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Immuno-oncology therapies are revolutionizing the oncology landscape with checkpoint blockade becoming the treatment backbone for many indications. While inspiring, much work remains to increase the number of cancer patients that can benefit from these treatments. Thus, a new era of immuno-oncology research has begun which is focused on identifying novel combination regimes that lead to improved response rates. This review highlights the significance of small molecules in this approach and illustrates the huge progress that has been made to date.
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Affiliation(s)
- Lisa Kötzner
- Healthcare R&D, Discovery and Development Technologies, Merck Healthcare KGaA, Darmstadt, Germany
| | - Bayard Huck
- Healthcare R&D, Discovery and Development Technologies, Merck Healthcare KGaA, Darmstadt, Germany
| | - Sakshi Garg
- Healthcare R&D, Discovery and Development Technologies, Merck Healthcare KGaA, Darmstadt, Germany
| | - Klaus Urbahns
- Healthcare R&D, Discovery and Development Technologies, Merck Healthcare KGaA, Darmstadt, Germany.
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24
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Tallis E, Borthakur G. Novel treatments for relapsed/refractory acute myeloid leukemia with FLT3 mutations. Expert Rev Hematol 2019; 12:621-640. [PMID: 31232619 DOI: 10.1080/17474086.2019.1635882] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Introduction: Mutations in the gene encoding for the FMS-like tyrosine kinase 3 (FLT3) are present in about 30% of adults with AML and are associated with shorter disease-free and overall survival after initial therapy. Prognosis of relapsed/refractory AML with FLT3 mutations is even more dismal with median overall survival of a few months only. Areas covered: This review will cover current and emerging treatments for relapsed/refractory AML with FLT3 mutations, preclinical rationale and clinical trials with new encouraging data for this particularly challenging population. The authors discuss mechanisms of resistance to FLT3 inhibitors and how these insights serve to identify current and future treatments. As allogeneic stem cell transplant in the first remission is the preferred therapy for newly diagnosed AML patients with FLT3 mutations, the authors discuss the role of maintenance after SCT for the prevention of relapse. Expert opinion: Relapsed/refractory AML with FLT3 mutations remains a therapeutic challenge with currently available treatments. However, the evolution of targeted therapies with next-generation FLT3 inhibitors and their combinations with chemotherapy is showing much promise. Moreover, growing understanding of the pathways of resistance to treatment has led to the identification of various targeted therapies currently being explored, which in time will improve outcomes.
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Affiliation(s)
- Eran Tallis
- a Department of Leukemia, The University of Texas MD Anderson Cancer Center , Houston , TX , USA
| | - Gautam Borthakur
- a Department of Leukemia, The University of Texas MD Anderson Cancer Center , Houston , TX , USA
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25
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Gruszka AM, Valli D, Restelli C, Alcalay M. Adhesion Deregulation in Acute Myeloid Leukaemia. Cells 2019; 8:E66. [PMID: 30658474 PMCID: PMC6356639 DOI: 10.3390/cells8010066] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 01/11/2019] [Accepted: 01/14/2019] [Indexed: 12/11/2022] Open
Abstract
Cell adhesion is a process through which cells interact with and attach to neighboring cells or matrix using specialized surface cell adhesion molecules (AMs). Adhesion plays an important role in normal haematopoiesis and in acute myeloid leukaemia (AML). AML blasts express many of the AMs identified on normal haematopoietic precursors. Differential expression of AMs between normal haematopoietic cells and leukaemic blasts has been documented to a variable extent, likely reflecting the heterogeneity of the disease. AMs govern a variety of processes within the bone marrow (BM), such as migration, homing, and quiescence. AML blasts home to the BM, as the AM-mediated interaction with the niche protects them from chemotherapeutic agents. On the contrary, they detach from the niches and move from the BM into the peripheral blood to colonize other sites, i.e., the spleen and liver, possibly in a process that is reminiscent of epithelial-to-mesenchymal-transition in metastatic solid cancers. The expression of AMs has a prognostic impact and there are ongoing efforts to therapeutically target adhesion in the fight against leukaemia.
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Affiliation(s)
- Alicja M Gruszka
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Via Adamello 16, 20 139 Milan, Italy.
| | - Debora Valli
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Via Adamello 16, 20 139 Milan, Italy.
| | - Cecilia Restelli
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Via Adamello 16, 20 139 Milan, Italy.
| | - Myriam Alcalay
- Department of Experimental Oncology, Istituto Europeo di Oncologia IRCCS, Via Adamello 16, 20 139 Milan, Italy.
- Department of Oncology and Hemato-Oncology, University of Milan, Via Festa del Perdono 7, 20 122 Milan, Italy.
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