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Guidetti L, Castelli R, Zappia A, Ferrari FR, Giorgio C, Barocelli E, Pagliaro L, Vento F, Roti G, Scalvini L, Vacondio F, Rivara S, Mor M, Lodola A, Tognolini M. Discovery of a new 1-(phenylsulfonyl)-1H-indole derivative targeting the EphA2 receptor with antiproliferative activity on U251 glioblastoma cell line. Eur J Med Chem 2024; 276:116681. [PMID: 39024966 DOI: 10.1016/j.ejmech.2024.116681] [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: 02/26/2024] [Revised: 07/04/2024] [Accepted: 07/12/2024] [Indexed: 07/20/2024]
Abstract
In our continuing effort devoted at developing agents targeting the EphA2 receptor by means of protein-protein interaction (PPI) inhibitors, we report here the design and synthesis of a new class of l-β-homotryptophan conjugates of 3-β-hydroxy-Δ5-cholenic acid bearing a set of arylsulfonyl substituents at the indole nitrogen atom. An extensive structure-activity relationship (SAR) analysis indicates that the presence of a bulky lipophilic moiety at the indole nitrogen is fundamental for improving potency on the EphA2 receptor, while abrogating activity on the EphB1-EphB3 receptor subtypes. A rational exploration, guided by the combined application of an experimental design on σp and π physicochemical descriptors and docking simulations, led to the discovery of UniPR1454, a 1-(4-(trifluoromethyl)phenyl)sulfonyl derivative acting as potent and competitive EphA2 antagonist able to inhibit ephrin-A1 dependent signals and to reduce proliferation of glioblastoma (U251) cell line at micromolar concentration.
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Affiliation(s)
- Lorenzo Guidetti
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Riccardo Castelli
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Alfonso Zappia
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | | | - Carmine Giorgio
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Elisabetta Barocelli
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Luca Pagliaro
- Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italy; Ematologia e CTMO, Azienda Ospedaliero Universitaria di Parma, Parma, Italy; Translational Hematology and Chemogenomics (THEC), Università di Parma, Parma, Italy
| | - Federica Vento
- Translational Hematology and Chemogenomics (THEC), Università di Parma, Parma, Italy; Dipartimento di Scienze Mediche, Università di Ferrara, Ferrara, Italy
| | - Giovanni Roti
- Dipartimento di Medicina e Chirurgia, Università di Parma, Parma, Italy; Ematologia e CTMO, Azienda Ospedaliero Universitaria di Parma, Parma, Italy; Translational Hematology and Chemogenomics (THEC), Università di Parma, Parma, Italy
| | - Laura Scalvini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Federica Vacondio
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Silvia Rivara
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy
| | - Marco Mor
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy; Microbiome Research Hub, Università di Parma, Parma, Italy
| | - Alessio Lodola
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy.
| | - Massimiliano Tognolini
- Dipartimento di Scienze degli Alimenti e del Farmaco, Università di Parma, Parma, Italy.
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2
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Rodríguez-Sosa MR, Del Castillo LM, Belarra A, Zapata AG, Alfaro D. The lack of EphB3 receptor prevents bone loss in mouse models of osteoporosis. J Bone Miner Res 2024; 39:1008-1024. [PMID: 38739682 DOI: 10.1093/jbmr/zjae075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 03/21/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024]
Abstract
Bone homeostasis is a complex process in which some Eph kinase receptors and their ephrin ligands appear to be involved. In the present study, we address this issue by examining, both in vitro and in vivo, the role of EphB2 and EphB3 in mesenchymal stromal/stem cell (MSC) differentiation into bone tissue. This was first evaluated by quantitative reverse transcription PCR (RT-qPCR) and histological staining in MSCs cultured in specific mediums revealing that although EphB2-/- MSCs mainly expressed pro-adipogenic transcription factors, EphB3-/- MSCs showed abundant osteogenic transcripts, such as Runx2, Msx2, and Sp7. To clarify the underlying molecular mechanisms, we found that the lack of EphB3 signaling alters the genetic profile of differentiating MSCs, reducing the expression of many inhibitory molecules and antagonists of the BMP signaling pathway, and increasing Bmp7 expression, a robust bone inductor. Then, to confirm the osteogenic role of EphB3 in vivo, we studied the condition of 2 mouse models of induced bone loss (ovariectomy or long-term glucocorticoid treatment). Interestingly, in both models, both WT and EphB2-/- mice equally developed the disease but EphB3-/- mice did not exhibit the typical bone loss, nor an increase in urine Ca2+ or blood serum CTX-1. This phenotype in EphB3-KO mice could be due to their significantly higher proportions of osteoprogenitor cells and preosteoblasts, and their lower number of osteoclasts, as compared with WT and EphB2-KO mice. Thus, we conclude that EphB3 acts as a negative regulator of the osteogenic differentiation, and its absence prevents bone loss in mice subjected to ovariectomy or dexamethasone treatment.
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Affiliation(s)
- Mariano R Rodríguez-Sosa
- Department of Cell Biology, Faculty of Biological Sciences, Complutense University of Madrid, C.P. 28040, Madrid, Spain
- Research Institute Hospital "12 de Octubre" (imas12), C.P. 28041, Madrid, Spain
| | - Luis M Del Castillo
- Reproductive Medicine Research Group, IVI Foundation, Health Research Institute Hospital La Fe (IIS La Fe), C.P. 46026, Valencia, Spain
| | - Adrián Belarra
- Micro-CT Laboratory, Central Radioactive Facility, Department of Radiology, Rehabilitation and Physiotherapy, Faculty of Medicine, Complutense University of Madrid, C.P. 28040, Madrid, Spain
| | - Agustín G Zapata
- Department of Cell Biology, Faculty of Biological Sciences, Complutense University of Madrid, C.P. 28040, Madrid, Spain
| | - David Alfaro
- Department of Cell Biology, Faculty of Biological Sciences, Complutense University of Madrid, C.P. 28040, Madrid, Spain
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3
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Miari KE, Williams MTS. Stromal bone marrow fibroblasts and mesenchymal stem cells support acute myeloid leukaemia cells and promote therapy resistance. Br J Pharmacol 2024; 181:216-237. [PMID: 36609915 DOI: 10.1111/bph.16028] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 09/13/2022] [Accepted: 12/22/2022] [Indexed: 01/09/2023] Open
Abstract
The bone marrow (BM) is the primary site of adult haematopoiesis, where stromal elements (e.g. fibroblasts and mesenchymal stem cells [MSCs]) work in concert to support blood cell development. However, the establishment of an abnormal clone can lead to a blood malignancy, such as acute myeloid leukaemia (AML). Despite our increased understanding of the pathophysiology of the disease, patient survival remains suboptimal, mainly driven by the development of therapy resistance. In this review, we highlight the importance of bone marrow fibroblasts and MSCs in health and acute myeloid leukaemia and their impact on patient prognosis. We discuss how stromal elements reduce the killing effects of therapies via a combination of contact-dependent (e.g. integrins) and contact-independent (i.e. secreted factors) mechanisms, accompanied by the establishment of an immunosuppressive microenvironment. Importantly, we underline the challenges of therapeutically targeting the bone marrow stroma to improve acute myeloid leukaemia patient outcomes, due to the inherent heterogeneity of stromal cell populations. LINKED ARTICLES: This article is part of a themed issue on Cancer Microenvironment and Pharmacological Interventions. To view the other articles in this section visit http://onlinelibrary.wiley.com/doi/10.1111/bph.v181.2/issuetoc.
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Affiliation(s)
- Katerina E Miari
- Charles Oakley Laboratories, Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, UK
| | - Mark T S Williams
- Charles Oakley Laboratories, Department of Biological and Biomedical Sciences, Glasgow Caledonian University, Glasgow, UK
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Stergiou IE, Papadakos SP, Karyda A, Tsitsilonis OE, Dimopoulos MA, Theocharis S. EPH/Ephrin Signaling in Normal Hematopoiesis and Hematologic Malignancies: Deciphering Their Intricate Role and Unraveling Possible New Therapeutic Targets. Cancers (Basel) 2023; 15:3963. [PMID: 37568780 PMCID: PMC10417178 DOI: 10.3390/cancers15153963] [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: 06/17/2023] [Revised: 08/02/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023] Open
Abstract
Erythropoietin-producing hepatocellular carcinoma receptors (EPHs) represent the largest family of receptor tyrosine kinases (RTKs). EPH interaction with ephrins, their membrane-bound ligands, holds a pivotal role in embryonic development, while, though less active, it is also implicated in various physiological functions during adult life. In normal hematopoiesis, different patterns of EPH/ephrin expression have been correlated with hematopoietic stem cell (HSC) maintenance and lineage-committed hematopoietic progenitor cell (HPC) differentiation, as well as with the functional properties of their mature offspring. Research in the field of hematologic malignancies has unveiled a rather complex involvement of the EPH/ephrinsignaling pathway in the pathophysiology of these neoplasms. Aberrations in genetic, epigenetic, and protein levels have been identified as possible players implicated both in tumor progression and suppression, while correlations have also been highlighted regarding prognosis and response to treatment. Initial efforts to therapeutically target the EPH/ephrin axis have been undertaken in the setting of hematologic neoplasia but are mainly confined to the preclinical level. To this end, deciphering the complexity of this signaling pathway both in normal and malignant hematopoiesis is necessary.
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Affiliation(s)
- Ioanna E. Stergiou
- Department of Pathophysiology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece;
| | - Stavros P. Papadakos
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (S.P.P.); (A.K.)
| | - Anna Karyda
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (S.P.P.); (A.K.)
| | - Ourania E. Tsitsilonis
- Flow Cytometry Unit, Department of Biology, School of Science, National and Kapodistrian University of Athens, 15784 Athens, Greece;
| | - Meletios-Athanasios Dimopoulos
- Department of Clinical Therapeutics, School of Medicine, National and Kapodistrian University of Athens, Alexandra Hospital, 11528 Athens, Greece
| | - Stamatios Theocharis
- First Department of Pathology, School of Medicine, National and Kapodistrian University of Athens, 11527 Athens, Greece; (S.P.P.); (A.K.)
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Abstract
Since the proposal of the differential adhesion hypothesis, scientists have been fascinated by how cell adhesion mediates cellular self-organization to form spatial patterns during development. The search for molecular tool kits with homophilic binding specificity resulted in a diverse repertoire of adhesion molecules. Recent understanding of the dominant role of cortical tension over adhesion binding redirects the focus of differential adhesion studies to the signaling function of adhesion proteins to regulate actomyosin contractility. The broader framework of differential interfacial tension encompasses both adhesion and nonadhesion molecules, sharing the common function of modulating interfacial tension during cell sorting to generate diverse tissue patterns. Robust adhesion-based patterning requires close coordination between morphogen signaling, cell fate decisions, and changes in adhesion. Current advances in bridging theoretical and experimental approaches present exciting opportunities to understand molecular, cellular, and tissue dynamics during adhesion-based tissue patterning across multiple time and length scales.
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Affiliation(s)
- Tony Y-C Tsai
- Department of Developmental Biology, Washington University School of Medicine, St. Louis, Missouri, USA;
| | - Rikki M Garner
- Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA;
| | - Sean G Megason
- Department of Systems Biology, Harvard Medical School, Boston, Massachusetts, USA;
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6
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Arthur A, Gronthos S. Eph-Ephrin Signaling Mediates Cross-Talk Within the Bone Microenvironment. Front Cell Dev Biol 2021; 9:598612. [PMID: 33634116 PMCID: PMC7902060 DOI: 10.3389/fcell.2021.598612] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 01/15/2021] [Indexed: 12/18/2022] Open
Abstract
Skeletal integrity is maintained through the tightly regulated bone remodeling process that occurs continuously throughout postnatal life to replace old bone and to repair skeletal damage. This is maintained primarily through complex interactions between bone resorbing osteoclasts and bone forming osteoblasts. Other elements within the bone microenvironment, including stromal, osteogenic, hematopoietic, endothelial and neural cells, also contribute to maintaining skeletal integrity. Disruption of the dynamic interactions between these diverse cellular systems can lead to poor bone health and an increased susceptibility to skeletal diseases including osteopenia, osteoporosis, osteoarthritis, osteomalacia, and major fractures. Recent reports have implicated a direct role for the Eph tyrosine kinase receptors and their ephrin ligands during bone development, homeostasis and skeletal repair. These membrane-bound molecules mediate contact-dependent signaling through both the Eph receptors, termed forward signaling, and through the ephrin ligands, referred to as reverse signaling. This review will focus on Eph/ ephrin cross-talk as mediators of hematopoietic and stromal cell communication, and how these interactions contribute to blood/ bone marrow function and skeletal integrity during normal steady state or pathological conditions.
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Affiliation(s)
- Agnieszka Arthur
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
| | - Stan Gronthos
- Mesenchymal Stem Cell Laboratory, Faculty of Health and Medical Sciences, Adelaide Medical School, University of Adelaide, Adelaide, SA, Australia.,Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia
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7
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Kulkarni R, Kale V. Physiological Cues Involved in the Regulation of Adhesion Mechanisms in Hematopoietic Stem Cell Fate Decision. Front Cell Dev Biol 2020; 8:611. [PMID: 32754597 PMCID: PMC7366553 DOI: 10.3389/fcell.2020.00611] [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: 04/15/2020] [Accepted: 06/19/2020] [Indexed: 12/16/2022] Open
Abstract
Hematopoietic stem cells (HSC) could have several fates in the body; viz. self-renewal, differentiation, migration, quiescence, and apoptosis. These fate decisions play a crucial role in maintaining homeostasis and critically depend on the interaction of the HSCs with their micro-environmental constituents. However, the physiological cues promoting these interactions in vivo have not been identified to a great extent. Intense research using various in vitro and in vivo models is going on in various laboratories to understand the mechanisms involved in these interactions, as understanding of these mechanistic would greatly help in improving clinical transplantations. However, though these elegant studies have identified the molecular interactions involved in the process, harnessing these interactions to the recipients' benefit would ultimately depend on manipulation of environmental cues initiating them in vivo: hence, these need to be identified at the earliest. HSCs reside in the bone marrow, which is a very complex tissue comprising of various types of stromal cells along with their secreted cytokines, extra-cellular matrix (ECM) molecules and extra-cellular vesicles (EVs). These components control the HSC fate decision through direct cell-cell interactions - mediated via various types of adhesion molecules -, cell-ECM interactions - mediated mostly via integrins -, or through soluble mediators like cytokines and EVs. This could be a very dynamic process involving multiple transient interactions acting concurrently or sequentially, and the adhesion molecules involved in various fate determining situations could be different. If the switch mechanisms governing these dynamic states in vivo are identified, they could be harnessed for the development of novel therapeutics. Here, in addition to reviewing the adhesion molecules involved in the regulation of HSCs, we also touch upon recent advances in our understanding of the physiological cues known to initiate specific adhesive interactions of HSCs with the marrow stromal cells or ECM molecules and EVs secreted by them.
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Affiliation(s)
- Rohan Kulkarni
- The Ohio State University Comprehensive Cancer Center, Columbus, OH, United States
| | - Vaijayanti Kale
- Symbiosis Centre for Stem Cell Research, Symbiosis International University, Pune, India
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8
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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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9
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Harnessing the Power of Eph/ephrin Biosemiotics for Theranostic Applications. Pharmaceuticals (Basel) 2020; 13:ph13060112. [PMID: 32492868 PMCID: PMC7345574 DOI: 10.3390/ph13060112] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Revised: 05/26/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023] Open
Abstract
Comprehensive basic biological knowledge of the Eph/ephrin system in the physiologic setting is needed to facilitate an understanding of its role and the effects of pathological processes on its activity, thereby paving the way for development of prospective therapeutic targets. To this end, this review briefly addresses what is currently known and being investigated in order to highlight the gaps and possible avenues for further investigation to capitalize on their diverse potential.
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10
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Aleman J, George SK, Herberg S, Devarasetty M, Porada CD, Skardal A, Almeida-Porada G. Deconstructed Microfluidic Bone Marrow On-A-Chip to Study Normal and Malignant Hemopoietic Cell-Niche Interactions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1902971. [PMID: 31464364 PMCID: PMC8011350 DOI: 10.1002/smll.201902971] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2019] [Revised: 07/31/2019] [Indexed: 05/23/2023]
Abstract
Human hematopoietic niches are complex specialized microenvironments that maintain and regulate hematopoietic stem and progenitor cells (HSPC). Thus far, most of the studies performed investigating alterations of HSPC-niche dynamic interactions are conducted in animal models. Herein, organ microengineering with microfluidics is combined to develop a human bone marrow (BM)-on-a-chip with an integrated recirculating perfusion system that consolidates a variety of important parameters such as 3D architecture, cell-cell/cell-matrix interactions, and circulation, allowing a better mimicry of in vivo conditions. The complex BM environment is deconvoluted to 4 major distinct, but integrated, tissue-engineered 3D niche constructs housed within a single, closed, recirculating microfluidic device system, and equipped with cell tracking technology. It is shown that this technology successfully enables the identification and quantification of preferential interactions-homing and retention-of circulating normal and malignant HSPC with distinct niches.
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Affiliation(s)
- Julio Aleman
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
| | - Sunil K George
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
| | - Samuel Herberg
- Department of Opthamology, State University of New York Upstate Medical University, 4609 Institute for Human Performance, Syracuse, NY, 13210, USA
| | - Mahesh Devarasetty
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
| | - Christopher D Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
| | - Aleksander Skardal
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
| | - Graça Almeida-Porada
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, 391 Technology Way, Winston-Salem, NC, 27101, USA
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11
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Arthur A, Nguyen TM, Paton S, Zannettino ACW, Gronthos S. Loss of EfnB1 in the osteogenic lineage compromises their capacity to support hematopoietic stem/progenitor cell maintenance. Exp Hematol 2018; 69:43-53. [PMID: 30326247 DOI: 10.1016/j.exphem.2018.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 10/09/2018] [Accepted: 10/10/2018] [Indexed: 12/14/2022]
Abstract
The bone marrow stromal microenvironment contributes to the maintenance and function of hematopoietic stem/progenitor cells (HSPCs). The Eph receptor tyrosine kinase family members have been implicated in bone homeostasis and stromal support of HSPCs. The present study examined the influence of EfnB1-expressing osteogenic lineage on HSPC function. Mice with conditional deletion of EfnB1 in the osteogenic lineage (EfnB1OB-/-), driven by the Osterix promoter, exhibited a reduced prevalence of osteogenic progenitors and osteoblasts, correlating to lower numbers of HSPCs compared with Osx:Cre mice. Long-term culture-initiating cell (LTC-IC) assays confirmed that the loss of EfnB1 within bone cells hindered HSPC function, with a significant reduction in colony formation in EfnB1OB-/- mice compared with Osx:Cre mice. Human studies confirmed that activation of EPHB2 on CD34+ HSPCs via EFNB1-Fc stimulation enhanced myeloid/erythroid colony formation, whereas functional blocking of either EPHB1 or EPHB2 inhibited the maintenance of LTC-ICs. Moreover, EFNB1 reverse signaling in human and mouse stromal cells was found to be required for the activation of the HSPC-promoting factor CXCL12. Collectively, the results of this study confirm that EfnB1 contributes to the stromal support of HSPC function and maintenance and may be an important factor in regulating the HSPC niche.
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Affiliation(s)
- Agnieszka Arthur
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia; Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Thao M Nguyen
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia; Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Sharon Paton
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia; Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Andrew C W Zannettino
- Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia; Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia
| | - Stan Gronthos
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, South Australia, Australia; Cancer Theme, South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia.
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12
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Gofur MR, Ogawa K. Compartments with predominant ephrin‐B1 and EphB2/B4 expression are present alternately along the excurrent duct system in the adult mouse testis and epididymis. Andrology 2018; 7:888-901. [DOI: 10.1111/andr.12523] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 05/23/2018] [Accepted: 06/12/2018] [Indexed: 12/29/2022]
Affiliation(s)
- M. R. Gofur
- Laboratory of Veterinary Anatomy Graduate School of Life and Environmental Sciences Osaka Prefecture University Izumisano Japan
| | - K. Ogawa
- Laboratory of Veterinary Anatomy Graduate School of Life and Environmental Sciences Osaka Prefecture University Izumisano Japan
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13
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Goichberg P. Current Understanding of the Pathways Involved in Adult Stem and Progenitor Cell Migration for Tissue Homeostasis and Repair. Stem Cell Rev Rep 2017; 12:421-37. [PMID: 27209167 DOI: 10.1007/s12015-016-9663-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
With the advancements in the field of adult stem and progenitor cells grows the recognition that the motility of primitive cells is a pivotal aspect of their functionality. There is accumulating evidence that the recruitment of tissue-resident and circulating cells is critical for organ homeostasis and effective injury responses, whereas the pathobiology of degenerative diseases, neoplasm and aging, might be rooted in the altered ability of immature cells to migrate. Furthermore, understanding the biological machinery determining the translocation patterns of tissue progenitors is of great relevance for the emerging methodologies for cell-based therapies and regenerative medicine. The present article provides an overview of studies addressing the physiological significance and diverse modes of stem and progenitor cell trafficking in adult mammalian organs, discusses the major microenvironmental cues regulating cell migration, and describes the implementation of live imaging approaches for the exploration of stem cell movement in tissues and the factors dictating the motility of endogenous and transplanted cells with regenerative potential.
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Affiliation(s)
- Polina Goichberg
- Department Anesthesiology, Perioperative and Pain Medicine, Harvard Medical School, Brigham and Women's Hospital, 75 Francis Street, Boston, MA, 02115, USA.
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14
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Tosato G. Ephrin ligands and Eph receptors contribution to hematopoiesis. Cell Mol Life Sci 2017; 74:3377-3394. [PMID: 28589441 PMCID: PMC11107787 DOI: 10.1007/s00018-017-2566-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 05/12/2017] [Accepted: 06/01/2017] [Indexed: 12/12/2022]
Abstract
Hematopoietic stem and progenitor cells reside predominantly in the bone marrow. They supply billions of mature blood cells every day during life through maturation into multilineage progenitors and self-renewal. Newly produced mature cells serve to replenish the pool of circulating blood cells at the end of their life-span. These mature blood cells and a few hematopoietic progenitors normally exit the bone marrow through the sinusoidal vessels, a specialized venous vascular system that spreads throughout the bone marrow. Many signals regulate the coordinated mobilization of hematopoietic cells from the bone marrow to the circulation. In this review, we present recent advances on hematopoiesis and hematopoietic cell mobilization with a focus on the role of Ephrin ligands and their Eph receptors. These constitute a large family of transmembrane ligands and receptors that play critical roles in development and postnatally. New insights point to distinct roles of ephrin and Eph in different aspects of hematopoiesis.
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Affiliation(s)
- Giovanna Tosato
- Laboratory of Cellular Oncology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Building 37, Room 4124, Bethesda, MD, 20892, USA.
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EphA5 and EphA7 forward signaling enhances human hematopoietic stem and progenitor cell maintenance, migration, and adhesion via Rac1 activation. Exp Hematol 2016; 48:72-78. [PMID: 27988259 DOI: 10.1016/j.exphem.2016.12.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 12/21/2022]
Abstract
The proliferation, differentiation, adhesion, and migration of hematopoietic stem and progenitor cells (HSPCs) are dependent upon bone marrow stromal cells (BMSCs). In this study, we found that human primitive HSPCs (CD34+CD38-), but not lineage-committed hematopoietic cell populations, express the tyrosine kinase receptors EphA5 and EphA7. Moreover, we found that the ephrinA5 ligand, the high-affinity binding partner of EphA5 and EphA7, is highly expressed by primary human BMSCs. Previous studies have reported that interactions between EphA and ephrinA play important roles in hematopoietic cell trafficking; however, their role in BMSC support of hematopoiesis had not been described previously. Herein, we show that stimulating EphA5 and/or EphA7 forward signaling in HSPCs using soluble ephrinA5-Fc molecules promoted human HSPC-derived colony formation significantly and was associated with increased expression of granulocyte macrophage colony-stimulating factor receptor on HSPCs. Studies using functional blocking peptides to EphA5/7 found that disruption of EphA5/ephrinA5 and/or EphA7/ephrinA5 interactions inhibited HSPC function in BMSC-dependent long-term culture-initiating cell assays. Furthermore, the adhesion and migration of HSPCs was increased significantly in the presence of ephrinA5-Fc molecules compared with human immunoglobulin G-treated controls. Conversely, blocking EphA5 activation led to a reduction of HSPC adhesion, whereas inhibiting EphA5 and/or EphA7 activation hindered HSPC migration. Analysis of HSPC cultured in the presence of ephrinA5-Fc showed that EphA forward signaling stimulated Rac1 gene and protein expression and the Rac1 target molecule WAVE1. Moreover, a significant reduction of ephrinA5-mediated HSPC adhesion and migration was observed in the presence of Rac1 inhibitor. These findings suggest that interactions between EphA and ephrinA5 are important in maintaining the HSPC niche mediated in part by activation of Rac1 signaling.
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Levesque JP, Winkler IG. Cell Adhesion Molecules in Normal and Malignant Hematopoiesis: from Bench to Bedside. CURRENT STEM CELL REPORTS 2016. [DOI: 10.1007/s40778-016-0066-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Konda N, Saeki N, Nishino S, Ogawa K. Truncated EphA2 likely potentiates cell adhesion via integrins as well as infiltration and/or lodgment of a monocyte/macrophage cell line in the red pulp and marginal zone of the mouse spleen, where ephrin-A1 is prominently expressed in the vasculature. Histochem Cell Biol 2016; 147:317-339. [PMID: 27665280 DOI: 10.1007/s00418-016-1494-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/09/2016] [Indexed: 01/01/2023]
Abstract
We previously established a J774.1 monocyte/macrophage subline expressing a truncated EphA2 construct lacking the kinase domain. We demonstrated that following ephrin-A1 stimulation, endogenous EphA2 promotes cell adhesion through interaction with integrins and integrin ligands such as ICAM1 and that truncated EphA2 potentiates the adhesion and becomes associated with the integrin/integrin ligand complex. Based on these findings, we hypothesized that the EphA/ephrin-A system, particularly EphA2/ephrin-A1, regulates transendothelial migration/tissue infiltration of monocytes/macrophages, because ephrin-A1 is widely recognized to be upregulated in inflammatory vasculatures. To evaluate whether this hypothesis is applicable in the spleen, we screened for EphA2/ephrin-A1 expression and reexamined the cellular properties of the J774.1 subline. We found that ephrin-A1 was expressed in the vasculature of the marginal zone and the red pulp and that its expression was upregulated in response to phagocyte depletion; further, CD115, F4/80, and CXCR4 were expressed in J774.1 cells, which serve as a usable substitute for monocytes/macrophages. Moreover, following ephrin-A1 stimulation, truncated EphA2 did not detectably interfere with the phosphorylation of endogenous EphA2, and it potentiated cell adhesion possibly through modulation of integrin avidity. Accordingly, by intravenously injecting mice with equal numbers of J774.1 and the subline cells labeled with distinct fluorochromes, we determined that truncated EphA2 markedly potentiated preferential cell infiltration into the red pulp and the marginal zone. Thus, modulation of EphA2 signaling might contribute to effective transplantation of tissue-specific resident macrophages and/or monocytes.
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Affiliation(s)
- Naoko Konda
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
| | - Noritaka Saeki
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
| | - Shingo Nishino
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan
| | - Kazushige Ogawa
- Laboratory of Veterinary Anatomy, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano, Osaka, 598-8531, Japan.
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Hatzistergos KE, Saur D, Seidler B, Balkan W, Breton M, Valasaki K, Takeuchi LM, Landin AM, Khan A, Hare JM. Stimulatory Effects of Mesenchymal Stem Cells on cKit+ Cardiac Stem Cells Are Mediated by SDF1/CXCR4 and SCF/cKit Signaling Pathways. Circ Res 2016; 119:921-30. [PMID: 27481956 DOI: 10.1161/circresaha.116.309281] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2016] [Accepted: 07/29/2016] [Indexed: 01/13/2023]
Abstract
RATIONALE Culture-expanded cells originating from cardiac tissue that express the cell surface receptor cKit are undergoing clinical testing as a cell source for heart failure and congenital heart disease. Although accumulating data support that mesenchymal stem cells (MSCs) enhance the efficacy of cardiac cKit(+) cells (CSCs), the underlying mechanism for this synergistic effect remains incompletely understood. OBJECTIVE To test the hypothesis that MSCs stimulate endogenous CSCs to proliferate, migrate, and differentiate via the SDF1/CXCR4 and stem cell factor/cKit pathways. METHODS AND RESULTS Using genetic lineage-tracing approaches, we show that in the postnatal murine heart, cKit(+) cells proliferate, migrate, and form cardiomyocytes, but not endothelial cells. CSCs exhibit marked chemotactic and proliferative responses when cocultured with MSCs but not with cardiac stromal cells. Antagonism of the CXCR4 pathway with AMD3100 (an SDF1/CXCR4 antagonist) inhibited MSC-induced CSC chemotaxis but stimulated CSC cardiomyogenesis (P<0.0001). Furthermore, MSCs enhanced CSC proliferation via the stem cell factor/cKit and SDF1/CXCR4 pathways (P<0.0001). CONCLUSIONS Together these findings show that MSCs exhibit profound, yet differential, effects on CSC migration, proliferation, and differentiation and suggest a mechanism underlying the improved cardiac regeneration associated with combination therapy using CSCs and MSCs. These findings have important therapeutic implications for cell-based therapy strategies that use mixtures of CSCs and MSCs.
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Affiliation(s)
- Konstantinos E Hatzistergos
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Dieter Saur
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Barbara Seidler
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Wayne Balkan
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Matthew Breton
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Krystalenia Valasaki
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Lauro M Takeuchi
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Ana Marie Landin
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Aisha Khan
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.)
| | - Joshua M Hare
- From the Interdisciplinary Stem Cell Institute, University of Miami, Miller School of Medicine, FL (K.E.H., W.B., M.B., K.V., L.M.T., A.M.L., A.K., J.M.H.); Department of Medicine II, Klinikum Rechts der Isar, Technische Universität München, Germany (D.S., B.S.); and German Cancer Research Center (DKFZ) and German Cancer Consortium (DKTK), Heidelberg, Germany (D.S., B.S.).
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19
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Guest editorial: Human mesenchymal stromal/stem cell (MSC). Int J Hematol 2015; 103:119-21. [PMID: 26699363 DOI: 10.1007/s12185-015-1931-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 12/15/2015] [Indexed: 01/13/2023]
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