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Narang S, Ghebrechristos Y, Evensen NA, Murrell N, Jasinski S, Ostrow TH, Teachey DT, Raetz EA, Lionnet T, Witkowski M, Aifantis I, Tsirigos A, Carroll WL. Clonal evolution of the 3D chromatin landscape in patients with relapsed pediatric B-cell acute lymphoblastic leukemia. Nat Commun 2024; 15:7425. [PMID: 39198446 PMCID: PMC11358475 DOI: 10.1038/s41467-024-51492-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/09/2024] [Indexed: 09/01/2024] Open
Abstract
Relapsed pediatric B-cell acute lymphoblastic leukemia (B-ALL) remains one of the leading causes of cancer mortality in children. We performed Hi-C, ATAC-seq, and RNA-seq on 12 matched diagnosis/relapse pediatric leukemia specimens to uncover dynamic structural variants (SVs) and 3D chromatin rewiring that may contribute to relapse. While translocations are assumed to occur early in leukemogenesis and be maintained throughout progression, we discovered novel, dynamic translocations and confirmed several fusion transcripts, suggesting functional and therapeutic relevance. Genome-wide chromatin remodeling was observed at all organizational levels: A/B compartments, TAD interactivity, and chromatin loops, including some loci shared by 25% of patients. Shared changes were found to drive the expression of genes/pathways previously implicated in resistance as well as novel therapeutic candidates, two of which (ATXN1 and MN1) we functionally validated. Overall, these results demonstrate chromatin reorganization under the selective pressure of therapy and offer the potential for discovery of novel therapeutic interventions.
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Affiliation(s)
- Sonali Narang
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Yohana Ghebrechristos
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Department of Pathology, NYU Langone Health, New York, NY, USA
| | - Nikki A Evensen
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - Nina Murrell
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Department of Pathology, NYU Langone Health, New York, NY, USA
| | - Sylwia Jasinski
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, NYU Langone Health, New York, NY, USA
| | - Talia H Ostrow
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
| | - David T Teachey
- Department of Pediatrics and the Center for Childhood Cancer Research, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Elizabeth A Raetz
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, NYU Langone Health, New York, NY, USA
| | - Timothee Lionnet
- Institute for Systems Genetics and Department of Cell Biology, NYU Langone Health, New York, NY, USA
- Department of Biomedical Engineering, NYU Tandon School of Engineering, Brooklyn, NY, USA
| | - Matthew Witkowski
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Iannis Aifantis
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA.
- Department of Pathology, NYU Langone Health, New York, NY, USA.
| | - Aristotelis Tsirigos
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA.
- Department of Pathology, NYU Langone Health, New York, NY, USA.
| | - William L Carroll
- Perlmutter Cancer Center, NYU Langone Health, New York, NY, USA.
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, NYU Langone Health, New York, NY, USA.
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2
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Ostini A, Mourtada-Maarabouni M. Investigation into the Role of Long-Non-Coding RNA MIAT in Leukemia. Noncoding RNA 2023; 9:47. [PMID: 37624039 PMCID: PMC10459085 DOI: 10.3390/ncrna9040047] [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: 07/14/2023] [Revised: 08/03/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
Myocardial Infarction Associated Transcript (MIAT) is a nuclear long non-coding RNA (LncRNA) with four different splicing variants. MIAT dysregulation is associated with carcinogenesis, mainly acting as an oncogene regulating cellular growth, invasion, and metastasis. The aim of the current study is to investigate the role of MIAT in the regulation of T and chronic myeloid leukemic cell survival. To this end, MIAT was silenced using MIAT-specific siRNAs in leukemic cell lines, and functional assays were performed thereafter. This investigation also aims to investigate the effects of MIAT silencing on the expression of core genes involved in cancer. Functional studies and gene expression determination confirm that MIAT knockdown not only affects short- and long-term survival and the apoptosis of leukemic cells but also plays a pivotal role in the alteration of key genes involved in cancer, including c-MYC and HIF-1A. Our observations suggest that MIAT could act as an oncogene and it has the potential to be used not only as a reliable biomarker for leukemia, but also be employed for prognostic and therapeutic purposes.
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Affiliation(s)
| | - Mirna Mourtada-Maarabouni
- School of Life Sciences, Faculty of Natural Sciences, Keele University, Newcastle-under-Lyme ST5 5BG, UK;
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3
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BATMAN A, CİFTCİLER R, ATEŞOĞLU EB, HACIHANEFİOĞLU A. Prognostic importance of thrombospondin-1, VEGF, PDGFR- β in diffuse large B-cell lymphoma. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.1146953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Aim: In this study, we aimed to investigate the relationship between the staining rates of thrombospondin-1, VEGF, and PDGFR-in tissue preparations in patients diagnosed with DLBCL and their clinical features at the time of diagnosis, and response to treatment and prognosis.
Material and Method: A total of 44 patients with a diagnosis of DLBCL and 13 patients diagnosed with control reactive lymphadenopathy were included in this study. After immunohistochemical staining of the pathology preparations of the patient and control groups with VEGF, PDGFR-β and thrombospondin-1 stains, the clinical characteristics of the patients and the relationship between survival analysis and staining rates were statistically analyzed.
Results: When the patients were compared with the control group in terms of VEGF, PDGFR-β, and thrombospondin-1 staining rates, we found that staining with PDGFR-β was lower in patients (p=0.009). Although it was not statistically significant for PDGFR-β, it was observed that 5-year OS and PFS values were low in patients with high levels of expression, on the contrary, 5-year OS was low in patients with high thrombospondin staining rate. A negative correlation was observed between thrombospondin-1 and PDGFR-β (p=0.003, r=-0.440).
Conclusion: As a result, although no relationship was found between VEGF and survival in our study, it was observed that PDGFR-β and thrombospondin-1 were effective in prognosis. A negative correlation was observed between thrombospondin-1 and PDGFR-β.
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Affiliation(s)
- Adnan BATMAN
- Koc University, School of Medicine, Department of Endocrinology and Metabolism
| | - Rafiye CİFTCİLER
- Aksaray Training and Research Hospital, Department of Hematology,
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Multi-omics analysis defines highly refractory RAS burdened immature subgroup of infant acute lymphoblastic leukemia. Nat Commun 2022; 13:4501. [PMID: 36042201 PMCID: PMC9427775 DOI: 10.1038/s41467-022-32266-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Accepted: 07/22/2022] [Indexed: 11/26/2022] Open
Abstract
KMT2A-rearranged infant acute lymphoblastic leukemia (ALL) represents the most refractory type of childhood leukemia. To uncover the molecular heterogeneity of this disease, we perform RNA sequencing, methylation array analysis, whole exome and targeted deep sequencing on 84 infants with KMT2A-rearranged leukemia. Our multi-omics clustering followed by single-sample and single-cell inference of hematopoietic differentiation establishes five robust integrative clusters (ICs) with different master transcription factors, fusion partners and corresponding stages of B-lymphopoietic and early hemato-endothelial development: IRX-type differentiated (IC1), IRX-type undifferentiated (IC2), HOXA-type MLLT1 (IC3), HOXA-type MLLT3 (IC4), and HOXA-type AFF1 (IC5). Importantly, our deep mutational analysis reveals that the number of RAS pathway mutations predicts prognosis and that the most refractory subgroup of IC2 possesses 100% frequency and the heaviest burden of RAS pathway mutations. Our findings highlight the previously under-appreciated intra- and inter-patient heterogeneity of KMT2A-rearranged infant ALL and provide a rationale for the future development of genomics-guided risk stratification and individualized therapy.
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Li X, Chen K, Zhang X, Yang J, Zheng J, Dong F, Zhu Y, Yu J, Lu P, Chen B. Successful therapy of chimeric antigen receptor T cells for isolated extramedullary acute lymphoblastic leukemia. EJHAEM 2022; 3:571-574. [PMID: 35846065 PMCID: PMC9175730 DOI: 10.1002/jha2.411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/22/2022] [Accepted: 02/24/2022] [Indexed: 12/04/2022]
Affiliation(s)
| | - Kylan Chen
- College of Natural SciencesUniversity of TexasAustinTexasUSA
| | - Xian Zhang
- Lu Daopei HospitalLangfangHebeiChina
- Lu Daopei Institute of HematologyBeijingChina
| | - Junfang Yang
- Lu Daopei HospitalLangfangHebeiChina
- Lu Daopei Institute of HematologyBeijingChina
| | | | - Fei Dong
- Kecellitics Biotech Company LtdBeijingChina
| | - Yongbo Zhu
- Kecellitics Biotech Company LtdBeijingChina
| | - Jiao Yu
- Kecellitics Biotech Company LtdBeijingChina
| | - Peihua Lu
- Lu Daopei HospitalLangfangHebeiChina
- Lu Daopei Institute of HematologyBeijingChina
| | - Bo Chen
- Kecellitics Biotech Company LtdBeijingChina
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Matheson CJ, Casalvieri KA, Backos DS, Minhajuddin M, Jordan CT, Reigan P. Substituted oxindol-3-ylidenes as AMP-activated protein kinase (AMPK) inhibitors. Eur J Med Chem 2020; 197:112316. [PMID: 32334266 PMCID: PMC7409528 DOI: 10.1016/j.ejmech.2020.112316] [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: 08/23/2019] [Revised: 12/05/2019] [Accepted: 04/06/2020] [Indexed: 12/22/2022]
Abstract
AMP-activated protein kinase (AMPK) is a central metabolic regulator that promotes cancer growth and survival under hypoxia and plays a role in the maintenance of cancer stem cells. A major challenge to interrogating the potential of targeting AMPK in cancer is the lack of potent and selective small molecule inhibitors. Compound C has been widely used as an AMPK inhibitor, but it lacks potency and has a poor selectivity profile. The multi-kinase inhibitor, sunitinib, has demonstrated potent nanomolar inhibition of AMPK activity and has scope for modification. Here, we have designed and synthesized several series of oxindoles to determine the structural requirements for AMPK inhibition and to improve selectivity. We identified two potent, novel oxindole-based AMPK inhibitors that were designed to interact with the DFG motif in the ATP-binding site of AMPK, this key feature evades interaction with the common recptor tyrosine kinase targets of sunitinib. Cellular engagement of AMPK by these oxindoles was confirmed by the inhibition of phosphorylation of acetyl-CoA carboxylase (ACC), a known substrate of AMPK, in myeloid leukemia cells. Interestingly, although AMPK is highly expressed and activated in K562 cells these oxindole-based AMPK inhibitors did not impact cell viability or result in significant cytotoxicity. Our studies serve as a platform for the further development of oxindole-based AMPK inhibitors with therapeutic potential.
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Affiliation(s)
- Christopher J Matheson
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO, 80045, USA
| | - Kimberly A Casalvieri
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO, 80045, USA
| | - Donald S Backos
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO, 80045, USA
| | - Mohammed Minhajuddin
- Division of Hematology, University of Colorado Anschutz Medical Campus, 12700 E 19th Avenue, Aurora, CO, 80045, USA
| | - Craig T Jordan
- Division of Hematology, University of Colorado Anschutz Medical Campus, 12700 E 19th Avenue, Aurora, CO, 80045, USA
| | - Philip Reigan
- Department of Pharmaceutical Sciences, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical Campus, 12850 East Montview Boulevard, Aurora, CO, 80045, USA.
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7
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Ceci C, Atzori MG, Lacal PM, Graziani G. Role of VEGFs/VEGFR-1 Signaling and its Inhibition in Modulating Tumor Invasion: Experimental Evidence in Different Metastatic Cancer Models. Int J Mol Sci 2020; 21:E1388. [PMID: 32085654 PMCID: PMC7073125 DOI: 10.3390/ijms21041388] [Citation(s) in RCA: 108] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/13/2020] [Accepted: 02/14/2020] [Indexed: 12/14/2022] Open
Abstract
The vascular endothelial growth factor (VEGF) family members, VEGF-A, placenta growth factor (PlGF), and to a lesser extent VEGF-B, play an essential role in tumor-associated angiogenesis, tissue infiltration, and metastasis formation. Although VEGF-A can activate both VEGFR-1 and VEGFR-2 membrane receptors, PlGF and VEGF-B exclusively interact with VEGFR-1. Differently from VEGFR-2, which is involved both in physiological and pathological angiogenesis, in the adult VEGFR-1 is required only for pathological angiogenesis. Besides this role in tumor endothelium, ligand-mediated stimulation of VEGFR-1 expressed in tumor cells may directly induce cell chemotaxis and extracellular matrix invasion. Furthermore, VEGFR-1 activation in myeloid progenitors and tumor-associated macrophages favors cancer immune escape through the release of immunosuppressive cytokines. These properties have prompted a number of preclinical and clinical studies to analyze VEGFR-1 involvement in the metastatic process. The aim of the present review is to highlight the contribution of VEGFs/VEGFR-1 signaling in the progression of different tumor types and to provide an overview of the therapeutic approaches targeting VEGFR-1 currently under investigation.
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Affiliation(s)
- Claudia Ceci
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (C.C.); (M.G.A.)
| | - Maria Grazia Atzori
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (C.C.); (M.G.A.)
| | - Pedro Miguel Lacal
- Laboratory of Molecular Oncology, “Istituto Dermopatico dell’Immacolata-Istituto di Ricovero e Cura a Carattere Scientifico”, IDI-IRCCS, Via dei Monti di Creta 104, 00167 Rome, Italy;
| | - Grazia Graziani
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy; (C.C.); (M.G.A.)
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8
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Sen K, Bhattacharyya D, Sarkar A, Das J, Maji N, Basu M, Ghosh Z, Ghosh TC. Exploring the major cross-talking edges of competitive endogenous RNA networks in human Chronic and Acute Myeloid Leukemia. Biochim Biophys Acta Gen Subj 2018; 1862:1883-1892. [DOI: 10.1016/j.bbagen.2018.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 05/14/2018] [Accepted: 06/04/2018] [Indexed: 12/31/2022]
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9
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Lacal PM, Graziani G. Therapeutic implication of vascular endothelial growth factor receptor-1 (VEGFR-1) targeting in cancer cells and tumor microenvironment by competitive and non-competitive inhibitors. Pharmacol Res 2018; 136:97-107. [PMID: 30170190 DOI: 10.1016/j.phrs.2018.08.023] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 08/24/2018] [Accepted: 08/26/2018] [Indexed: 12/12/2022]
Abstract
The vascular endothelial growth factor receptor-1 (VEGFR-1) is a tyrosine kinase receptor for VEGF-A, VEGF-B, and placental growth factor (PlGF) ligands that is expressed in endothelial, myelomonocytic and tumor cells. VEGF-B and PlGF exclusively bind to VEGFR-1, whereas VEGF-A also binds to VEGFR-2. At variance with VEGFR-2, VEGFR-1 does not play a relevant role in physiological angiogenesis in the adult, while it is important in tumor-associated angiogenesis. VEGFR-1 and PlGF are expressed in a variety of tumors, promote invasiveness and contribute to resistance to anti-VEGF-A therapy. The currently approved antiangiogenic therapies for the treatment of a variety of solid tumors hamper VEGF-A signaling mediated by both VEGFR-2 and VEGFR-1 [i.e., the monoclonal antibody (mAb) anti-VEGF-A bevacizumab, the chimeric molecule aflibercept and several small molecule tyrosine kinase inhibitors] or exclusively by VEGFR-2 (i.e., the mAb anti-VEGFR-2 ramucirumab). However, molecules that interfere with VEGF-A/VEGFR-2 signaling determine severe adverse effects due to inhibition of physiological angiogenesis and their efficacy is hampered by tumor infiltration of protumoral myeloid cells. Blockade of VEGFR-1 may exert anti-tumor activity by multiple mechanisms: a) inhibition of tumor-associated angiogenesis; b) reduction of myeloid progenitor mobilization and tumor infiltration by VEGFR-1 expressing M2 macrophages, which contribute to tumor progression and spreading; c) inhibition of invasiveness, vasculogenic mimicry and survival of VEGFR-1 positive tumor cells. As a consequence of these properties, molecules targeting VEGFR-1 are expected to produce less adverse effects and to counteract resistance towards anti-VEGF-A therapies. More interestingly, selective VEGFR-1 inhibition might enhance the efficacy of immunotherapy with immune checkpoint inhibitors. In this review, we will examine the experimental evidence available so far that supports targeting VEGFR-1 signal transduction pathway for cancer treatment by competitive inhibitors that prevent growth factor interaction with the receptor and non-competitive inhibitors that hamper receptor activation without affecting ligand binding.
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Affiliation(s)
- Pedro Miguel Lacal
- Laboratory of Molecular Oncology, Istituto Dermopatico dell'Immacolata, IDI-IRCCS, Via Monti di Creta 104, 00167 Rome, Italy.
| | - Grazia Graziani
- Department of Systems Medicine, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy.
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10
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Placental growth factor: A review of literature and future applications. Pregnancy Hypertens 2018; 14:260-264. [PMID: 29555222 DOI: 10.1016/j.preghy.2018.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 03/08/2018] [Accepted: 03/09/2018] [Indexed: 12/11/2022]
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11
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Graziani G, Ruffini F, Tentori L, Scimeca M, Dorio AS, Atzori MG, Failla CM, Morea V, Bonanno E, D'Atri S, Lacal PM. Antitumor activity of a novel anti-vascular endothelial growth factor receptor-1 monoclonal antibody that does not interfere with ligand binding. Oncotarget 2018; 7:72868-72885. [PMID: 27655684 PMCID: PMC5341950 DOI: 10.18632/oncotarget.12108] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 09/12/2016] [Indexed: 11/29/2022] Open
Abstract
Vascular endothelial growth factor receptor-1 (VEGFR-1) is a tyrosine kinase transmembrane receptor that has also a soluble isoform containing most of the extracellular ligand binding domain (sVEGFR-1). VEGF-A binds to both VEGFR-2 and VEGFR-1, whereas placenta growth factor (PlGF) interacts exclusively with VEGFR-1. In this study we generated an anti-VEGFR-1 mAb (D16F7) by immunizing BALB/C mice with a peptide that we had previously reported to inhibit angiogenesis and endothelial cell migration induced by PlGF. D16F7 did not affect binding of VEGF-A or PlGF to VEGFR-1, thus allowing sVEGFR-1 to act as decoy receptor for these growth factors, but it hampered receptor homodimerization and activation. D16F7 inhibited both the chemotactic response of human endothelial, myelomonocytic and melanoma cells to VEGFR-1 ligands and vasculogenic mimicry by tumor cells. Moreover, D16F7 exerted in vivo antiangiogenic effects in a matrigel plug assay. Importantly, D16F7 inhibited tumor growth and was well tolerated by B6D2F1 mice injected with syngeneic B16F10 melanoma cells. The antitumor effect was associated with melanoma cell apoptosis, vascular abnormalities and decrease of both monocyte/macrophage infiltration and myeloid progenitor mobilization. For all the above, D16F7 may be exploited in the therapy of metastatic melanoma and other tumors or pathological conditions involving VEGFR-1 activation.
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Affiliation(s)
- Grazia Graziani
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Federica Ruffini
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Lucio Tentori
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | - Manuel Scimeca
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Annalisa S Dorio
- Department of Systems Medicine, University of Rome Tor Vergata, Rome, Italy
| | | | - Cristina M Failla
- Laboratory of Experimental Immunology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Veronica Morea
- National Research Council of Italy (CNR), Institute of Molecular Biology and Pathology, Rome, Italy
| | - Elena Bonanno
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy
| | - Stefania D'Atri
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
| | - Pedro M Lacal
- Laboratory of Molecular Oncology, "Istituto Dermopatico dell'Immacolata"-IRCCS, Rome, Italy
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12
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Wang Q, Xu B, Du J, Xu X, Shang C, Wang X, Wang J. MicroRNA-139-5p/Flt1/Wnt/β-catenin regulatory crosstalk modulates the progression of glioma. Int J Mol Med 2018; 41:2139-2149. [PMID: 29393392 PMCID: PMC5810245 DOI: 10.3892/ijmm.2018.3439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Accepted: 01/16/2018] [Indexed: 01/27/2023] Open
Abstract
Fms-related tyrosine kinase 1 (Flt1), the receptor of VEGF/PIGF, is associated with cancer angiogenesis and tumorigenesis. Although the high expression of Flt1 in glioma is identified, its regulatory mechanism remains unclear. In the present study, we demonstrate that miR-139-5p inhibits Flt1 expression mediated by binding its 3′ untranslated region (3′UTR) to regulate the progression of human glioma. We found miR-139-5p was downregulated in glioma tissues compared with normal brain tissues whereas a converse expression level of Flt1 was observed. Additionally we proved that miR-139-5p directly integrated with the 3′UTR of Flt1 via luciferase activity assay and cells transfected with miR-139-5p characterized with a low expression of Flt1 in mRNA and protein levels. Furthermore, we validated that miR-139-5p enforced its biological modulation via targeting Flt1 through rescue experiments. miR-139-5p suppressed and Flt1 stimulated the malignant activities of glioma cells. We demonstrated that miR-139-5p inhibited the Flt1-mediated Wnt/β-catenin signaling pathway in glioma cells. Conclusively, our study indicated that miR-139-5p can counteract the malignant phenotypes of glioma cells by the inhibitory effect of the Flt1-mediated Wnt/β-catenin signaling pathway.
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Affiliation(s)
- Qiong Wang
- Tianjin Neurosurgery Institute, Tianjin Key Laboratory of Cerebral Vascular and Neural Degenerative Diseases, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Bin Xu
- The Graduate School, Tianjin Medical University, Tianjin 300060, P.R. China
| | - Jixiang Du
- The Graduate School, Tianjin Medical University, Tianjin 300060, P.R. China
| | - Xinnv Xu
- Department of Critical Care Medicine, Tianjin First Central Hospital, Tianjin 300060, P.R. China
| | - Chao Shang
- Tianjin Neurosurgery Institute, Tianjin Key Laboratory of Cerebral Vascular and Neural Degenerative Diseases, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
| | - Xiuyu Wang
- The Graduate School, Tianjin Medical University, Tianjin 300060, P.R. China
| | - Jinhuan Wang
- Tianjin Neurosurgery Institute, Tianjin Key Laboratory of Cerebral Vascular and Neural Degenerative Diseases, Tianjin Huanhu Hospital, Tianjin 300060, P.R. China
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Guillem V, Calabuig M, Brunet S, Esteve J, Escoda L, Gallardo D, Ribera JM, Queipo de Llano MP, Arnan M, Pedro C, Amigo ML, Martí-Tutusaus JM, García-Guiñón A, Bargay J, Sampol A, Salamero O, Font L, Talarn C, Hoyos M, Díaz-Beyá M, Garrido A, Navarro B, Nomdédeu J, Sierra J, Tormo M. Bone marrow VEGFC expression is associated with multilineage dysplasia and several prognostic markers in adult acute myeloid leukemia, but not with survival. Leuk Lymphoma 2018; 59:2383-2393. [PMID: 29345176 DOI: 10.1080/10428194.2017.1422858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Vascular endothelial growth factor C (VEGFC) stimulates leukemia cell proliferation and survival, and promotes angiogenesis. We studied VEGFC expression in bone marrow samples from 353 adult acute myeloid leukemia (AML) patients and its relationship with several clinical, cytogenetic, and molecular variables. We also studied the expression of 84 genes involved in VEGF signaling in 24 patients. We found that VEGFC expression was higher in AML patients with myelodysplasia-related changes (AML-MRC) than in patients with non-AML-MRC. We also found an association between VEGFC expression and the patient cytogenetic risk group, with those with a worse prognosis having higher VEGFC expression levels. No correlation was observed between VEGFC expression and survival or complete remission. VEGFC expression strongly correlated with expression of the VEGF receptors FLT1, KDR, and NRP1. Thus, in this series, VEGFC expression was increased in AML-MRC and in subgroups with a poorer prognosis, but has no impact on survival.
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Affiliation(s)
- Vicent Guillem
- a Department of Hematology and Medical Oncology , Hospital Clínico Universitario INCLIVA Biomedical Research Institute , Valencia , Spain
| | - Marisa Calabuig
- a Department of Hematology and Medical Oncology , Hospital Clínico Universitario INCLIVA Biomedical Research Institute , Valencia , Spain
| | - Salut Brunet
- b Department of Hematology , Hospital de Sant Pau, IIB Sant Pau and Jose Carreras Leukemia Research Institutes, Universidad Autónoma de Barcelona , Spain
| | - Jordi Esteve
- c Department of Hematology , Hospital Clínic, IDIBAPS , Barcelona , Spain
| | - Lourdes Escoda
- d Department of Hematology , Hospital Universitari Joan XIII , Tarragona , Spain
| | - David Gallardo
- e Department of Hematology , ICO Girona, Hospital Josep Trueta, IDIBGI Foundation , Girona , Spain
| | - Josep-Maria Ribera
- f Department of Hematology , ICO Badalona - Hospital Germans Trias i Pujol, Josep Carreras Leukemia Research Institute, Universitat Autonoma de Barcelona , Badalona , Spain
| | | | - Montserrat Arnan
- h Department of Hematology , ICO - Hospital Duran i Reynals , Barcelona , Spain
| | - Carme Pedro
- i Department of Hematology , Hospital del Mar, Parc de Salut Mar , Barcelona , Spain
| | - María Luz Amigo
- j Department of Hematology , Hospital Morales Meseguer , Murcia , Spain
| | | | - Antoni García-Guiñón
- l Department of Hematology , Hospital Universitari Arnau de Villanova , Lleida , Spain
| | - Joan Bargay
- m Department of Hematology , Hospital Son Llatzer , Mallorca , Spain
| | - Antonia Sampol
- n Department of Hematology , University Hospital Son Espases, Instituto IDISPA , Palma de Mallorca , Spain
| | - Olga Salamero
- o Department of Hematology , Hospital Vall d'Hebron , Barcelona , Spain
| | - Llorenç Font
- p Department of Hematology , Hospital Verge de la Cinta , Tortosa , Spain
| | - Carme Talarn
- c Department of Hematology , Hospital Clínic, IDIBAPS , Barcelona , Spain
| | - Montserrat Hoyos
- b Department of Hematology , Hospital de Sant Pau, IIB Sant Pau and Jose Carreras Leukemia Research Institutes, Universidad Autónoma de Barcelona , Spain
| | - Marina Díaz-Beyá
- c Department of Hematology , Hospital Clínic, IDIBAPS , Barcelona , Spain
| | - Ana Garrido
- b Department of Hematology , Hospital de Sant Pau, IIB Sant Pau and Jose Carreras Leukemia Research Institutes, Universidad Autónoma de Barcelona , Spain
| | - Blanca Navarro
- a Department of Hematology and Medical Oncology , Hospital Clínico Universitario INCLIVA Biomedical Research Institute , Valencia , Spain
| | - Josep Nomdédeu
- b Department of Hematology , Hospital de Sant Pau, IIB Sant Pau and Jose Carreras Leukemia Research Institutes, Universidad Autónoma de Barcelona , Spain
| | - Jordi Sierra
- b Department of Hematology , Hospital de Sant Pau, IIB Sant Pau and Jose Carreras Leukemia Research Institutes, Universidad Autónoma de Barcelona , Spain
| | - Mar Tormo
- a Department of Hematology and Medical Oncology , Hospital Clínico Universitario INCLIVA Biomedical Research Institute , Valencia , Spain
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14
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Bürgler S, Nadal D. Pediatric precursor B acute lymphoblastic leukemia: are T helper cells the missing link in the infectious etiology theory? Mol Cell Pediatr 2017; 4:6. [PMID: 28508352 PMCID: PMC5432458 DOI: 10.1186/s40348-017-0072-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 04/25/2017] [Indexed: 01/09/2023] Open
Abstract
Precursor B acute lymphoblastic leukemia (BCP-ALL), the most common childhood malignancy, arises from an expansion of malignant B cell precursors in the bone marrow. Epidemiological studies suggest that infections or immune responses to infections may promote such an expansion and thus BCP-ALL development. Nevertheless, a specific pathogen responsible for this process has not been identified. BCP-ALL cells critically depend on interactions with the bone marrow microenvironment. The bone marrow is also home to memory T helper (Th) cells that have previously expanded during an immune response in the periphery. In secondary lymphoid organs, Th cells can interact with malignant cells of mature B cell origin, while such interactions between Th cells and malignant immature B cell in the bone marrow have not been described yet. Nevertheless, literature supports a model where Th cells—expanded during an infection in early childhood—migrate to the bone marrow and support BCP-ALL cells as they support normal B cells. Further research is required to mechanistically confirm this model and to elucidate the interaction pathways between leukemia cells and cells of the tumor microenvironment. As benefit, targeting these interactions could be included in current treatment regimens to increase therapeutic efficiency and to reduce relapses.
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Affiliation(s)
- Simone Bürgler
- Experimental Infectious Diseases and Cancer Research, University Children's Hospital Zürich, 8008, Zürich, Switzerland.
| | - David Nadal
- Experimental Infectious Diseases and Cancer Research, University Children's Hospital Zürich, 8008, Zürich, Switzerland
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15
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Hypoxic adaptation of leukemic cells infiltrating the CNS affords a therapeutic strategy targeting VEGFA. Blood 2017; 129:3126-3129. [PMID: 28424164 DOI: 10.1182/blood-2016-06-721712] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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16
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Newell LF, Holtan SG. Placental growth factor: What hematologists need to know. Blood Rev 2017; 31:57-62. [PMID: 27608972 PMCID: PMC5916812 DOI: 10.1016/j.blre.2016.08.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2015] [Revised: 08/19/2016] [Accepted: 08/23/2016] [Indexed: 12/16/2022]
Abstract
Although first identified in placenta, the angiogenic factor known as placental growth factor (PlGF) can be widely expressed in ischemic or damaged tissues. Recent studies have indicated that PlGF is a relevant factor in the pathobiology of blood diseases including hemoglobinopathies and hematologic malignancies. Therapies for such blood diseases may one day be based upon these and ongoing investigations into the role of PlGF in sickle cell disease, acute and chronic leukemias, and complications related to hematopoietic cell transplantation. In this review, we summarize recent studies regarding the potential role of PlGF in blood disorders and suggest avenues for future research.
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Affiliation(s)
- Laura F Newell
- Oregon Health and Science University, Center for Hematologic Malignancies, Portland, OR, USA.
| | - Shernan G Holtan
- University of Minnesota, Blood and Marrow Transplant Program, Minneapolis, MN, USA.
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17
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Frishman-Levy L, Izraeli S. Advances in understanding the pathogenesis of CNS acute lymphoblastic leukaemia and potential for therapy. Br J Haematol 2016; 176:157-167. [DOI: 10.1111/bjh.14411] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Accepted: 08/15/2016] [Indexed: 12/16/2022]
Affiliation(s)
- Liron Frishman-Levy
- Childhood Leukaemia Research Section; Department of Paediatric Oncology and the Cancer Research Centre; Safra Children Hospital and Sheba Medical Centre; Tel Hashomer Ramat Gan Israel
- Department of Human Genetics and Biochemistry; Tel Aviv University; Tel Aviv Israel
| | - Shai Izraeli
- Childhood Leukaemia Research Section; Department of Paediatric Oncology and the Cancer Research Centre; Safra Children Hospital and Sheba Medical Centre; Tel Hashomer Ramat Gan Israel
- Department of Human Genetics and Biochemistry; Tel Aviv University; Tel Aviv Israel
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18
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MiR-146b negatively regulates migration and delays progression of T-cell acute lymphoblastic leukemia. Sci Rep 2016; 6:31894. [PMID: 27550837 PMCID: PMC4994040 DOI: 10.1038/srep31894] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/29/2016] [Indexed: 12/19/2022] Open
Abstract
Previous results indicated that miR-146b-5p is downregulated by TAL1, a transcription factor critical for early hematopoiesis that is frequently overexpressed in T-cell acute lymphoblastic leukemia (T-ALL) where it has an oncogenic role. Here, we confirmed that miR-146b-5p expression is lower in TAL1-positive patient samples than in other T-ALL cases. Furthermore, leukemia T-cells display decreased levels of miR-146b-5p as compared to normal T-cells, thymocytes and other hematopoietic progenitors. MiR-146b-5p silencing enhances the in vitro migration and invasion of T-ALL cells, associated with increased levels of filamentous actin and chemokinesis. In vivo, miR-146b overexpression in a TAL1-positive cell line extends mouse survival in a xenotransplant model of human T-ALL. In contrast, knockdown of miR-146b-5p results in leukemia acceleration and decreased mouse overall survival, paralleled by faster tumor infiltration of the central nervous system. Our results suggest that miR-146b-5p is a functionally relevant microRNA gene in the context of T-ALL, whose negative regulation by TAL1 and possibly other oncogenes contributes to disease progression by modulating leukemia cell motility and disease aggressiveness.
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19
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Pagani E, Ruffini F, Antonini Cappellini GC, Scoppola A, Fortes C, Marchetti P, Graziani G, D'Atri S, Lacal PM. Placenta growth factor and neuropilin-1 collaborate in promoting melanoma aggressiveness. Int J Oncol 2016; 48:1581-9. [PMID: 26846845 DOI: 10.3892/ijo.2016.3362] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 10/20/2015] [Indexed: 11/06/2022] Open
Abstract
The placenta growth factor (PlGF) is a member of the vascular endothelial growth factor (VEGF) family, which shares with VEGF-A the tyrosine kinase receptor VEGFR-1 and the co-receptor neuropilin-1 (NRP-1). In melanoma models, PlGF enhances tumour growth and neovessel formation, whereas NRP-1 promotes the metastatic process. Increased secretion of PlGF and expression of NRP-1 have also been involved in intrinsic or acquired resistance to anti‑angiogenic therapies. In this study we investigated whether PlGF and NRP-1 cooperate in promoting melanoma aggressiveness independently of VEGFR-1. For this purpose, the melanoma cell clones M14-N, expressing NRP-1 and lacking VEGFR-1, and M14-C, devoid of both receptors, were used. M14-N cells are characterized by an invasive phenotype and vasculogenic mimicry, whereas M14-C cells possess a negligible invasive capacity. The results indicated that M14-N cells secrete higher levels of PlGF than M14-C cells and that PlGF is involved in the invasion of the extracellular matrix (ECM) and vasculogenic mimicry of M14-N cells. In fact, neutralizing antibodies against PlGF reverted ECM invasion in response to PlGF and markedly reduced the formation of tubule-like structures. Moreover, M14-N cells migrated in response to PlGF and chemotaxis was specifically abrogated by anti-NRP-1 antibodies, demonstrating that PlGF directly activates NRP-1 in the absence of VEGFR-1. We also compared the levels of PlGF in the plasma of patients affected by metastatic melanoma with those of healthy donors and evaluated whether PlGF levels could be affected by a bevacizumab-containing chemotherapy regimen. Melanoma patients showed a 20-fold increase in plasma PlGF and the bevacizumab-containing regimen induced a reduction of VEGF-A and in a further increase of PlGF. In conclusion, our studies suggest that the activation of NRP-1 by PlGF directly contributes to melanoma aggressiveness and represents a potential compensatory pro-angiogenic mechanism that may contribute to the resistance to therapies targeting VEGF-A.
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Affiliation(s)
- Elena Pagani
- Laboratory of Molecular Oncology, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
| | - Federica Ruffini
- Laboratory of Molecular Oncology, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
| | | | - Alessandro Scoppola
- Department of Oncology and Dermatological Oncology, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
| | - Cristina Fortes
- Epidemiology Unit, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
| | - Paolo Marchetti
- Department of Oncology, Sant'Andrea Hospital, University of Rome 'La Sapienza', Rome, Italy
| | - Grazia Graziani
- Department of Systems Medicine, University of Rome 'Tor Vergata', Rome, Italy
| | - Stefania D'Atri
- Laboratory of Molecular Oncology, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
| | - Pedro Miguel Lacal
- Laboratory of Molecular Oncology, 'Istituto Dermopatico dell'Immacolata'- IRCCS, Rome, Italy
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20
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VEGFR-1 overexpression identifies a small subgroup of aggressive prostate cancers in patients treated by prostatectomy. Int J Mol Sci 2015; 16:8591-606. [PMID: 25894226 PMCID: PMC4425098 DOI: 10.3390/ijms16048591] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 03/27/2015] [Accepted: 04/10/2015] [Indexed: 01/30/2023] Open
Abstract
The VEGFR-1 is suggested to promote tumor progression. In the current study we analyzed prevalence and prognostic impact of the VEGFR-1 by immunohistochemistry on a tissue microarray containing more than 3000 prostate cancer specimens. Results were compared to tumor phenotype, ETS-related gene (ERG) status, and biochemical recurrence. Membranous VEGFR-1 expression was detectable in 32.6% of 2669 interpretable cancers and considered strong in 1.7%, moderate in 6.7% and weak in 24.2% of cases. Strong VEGFR-1 expression was associated with TMPRSS2:ERG fusion status as determined by fluorescence in situ hybridization (FISH) and immunohistochemistry (p < 0.0001 each). Elevated VEGFR-1 expression was linked to high Gleason grade and advanced pT stage in TMPRSS2:ERG negative cancers (p = 0.0008 and p = 0.001), while these associations were absent in TMPRSS2:ERG positive cancers. VEGFR-1 expression was also linked to phosphatase and tensin homolog (PTEN) deletions. A comparison with prostate specific antigen (PSA) recurrence revealed that the 1.7% of prostate cancers with the highest VEGFR-1 levels had a strikingly unfavorable prognosis. This could be seen in all cancers, in the subsets of TMPRSS2:ERG positive or negative, PTEN deleted or undeleted carcinomas (p < 0.0001 each). High level VEGFR-1 expression is infrequent in prostate cancer, but identifies a subgroup of aggressive cancers, which may be candidates for anti-VEGFR-1 targeted therapy.
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21
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Zhang Y, Hu K, Hu Y, Liu L, Wang B, Huang H. Bone marrow mesenchymal stromal cells affect the cell cycle arrest effect of genotoxic agents on acute lymphocytic leukemia cells via p21 down-regulation. Ann Hematol 2014; 93:1499-508. [PMID: 24705889 DOI: 10.1007/s00277-014-2069-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Accepted: 03/24/2014] [Indexed: 10/25/2022]
Abstract
The effect of bone marrow microenvironment on the cell cycle of acute lymphocytic leukemia (ALL) and the underlying mechanism has not been elucidated. In this study, we found that in normal condition, bone marrow mesenchymal stromal cells (BM-MSCs) had no significant effect on the cell cycle and apoptosis of ALL; in the condition when the cell cycle of ALL was blocked by genotoxic agents, BM-MSCs could increase the S-phase cell ratio and decrease the G2/M phase ratio of ALL. Besides, BM-MSCs could protect ALL cells from drug-induced apoptosis. Then, we proved that BM-MSCs affect the cell cycle arrest effect of genotoxic agents on ALL cells via p21 down-regulation. Moreover, our results indicated that activation of Wnt/β-catenin and Erk pathways might be involved in the BM-MSC-induced down-regulation of p21 in ALL cells. Targeting microenvironment-related signaling pathway may therefore be a potential novel approach for ALL therapy.
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Affiliation(s)
- Yiran Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
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22
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Geethakumari PR, Hoffmann MS, Pemmaraju N, Hu S, Jorgensen JL, O'Brien S, Daver N. Extramedullary B lymphoblastic leukemia/lymphoma (B-ALL/B-LBL): a diagnostic challenge. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2014; 14:e115-8. [PMID: 24589157 DOI: 10.1016/j.clml.2014.01.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 01/17/2014] [Accepted: 01/23/2014] [Indexed: 11/27/2022]
Affiliation(s)
| | - Marc S Hoffmann
- Department of Leukemia, M.D. Anderson Cancer Center, University of Texas, Houston, TX
| | - Naveen Pemmaraju
- Department of Leukemia, M.D. Anderson Cancer Center, University of Texas, Houston, TX
| | - Shimin Hu
- Department of Hematopathology, M.D. Anderson Cancer Center, University of Texas, Houston, TX
| | - Jeffrey L Jorgensen
- Department of Hematopathology, M.D. Anderson Cancer Center, University of Texas, Houston, TX
| | - Susan O'Brien
- Department of Leukemia, M.D. Anderson Cancer Center, University of Texas, Houston, TX
| | - Naval Daver
- Department of Leukemia, M.D. Anderson Cancer Center, University of Texas, Houston, TX.
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23
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Ruan J, Gregory SA, Christos P, Martin P, Furman RR, Coleman M, Leonard JP. Long-term follow-up of R-CHOP with bevacizumab as initial therapy for mantle cell lymphoma: clinical and correlative results. CLINICAL LYMPHOMA MYELOMA & LEUKEMIA 2013; 14:107-13. [PMID: 24373788 DOI: 10.1016/j.clml.2013.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 09/29/2013] [Accepted: 10/21/2013] [Indexed: 10/26/2022]
Abstract
BACKGROUND Emerging evidence indicates that MCL has increased angiogenesis within the tumor microenvironment. We initiated a phase II trial to determine if the addition of bevacizumab to the standard R-CHOP regimen could enhance antitumor effects in patients with previously untreated MCL. PATIENTS AND METHODS Eleven patients with previously untreated MCL received bevacizumab at 15 mg/kg on day 1, and standard CHOP-21 (CHOP given every 21 days per cycle) with rituximab (375 mg/m(2) per cycle) on day 3 of each cycle for a total of 6 cycles. Planned study end points included safety and efficacy assessment, and exploratory analysis of angiogenic profiles. The study was suspended in August of 2010 based on safety findings in DLBCL (diffuse large B-cell lymphoma) of increased cardiovascular events with the regimen. RESULTS Beyond the standard R-CHOP safety profile, Grade 3 left ventricular dysfunction developed in 2 patients (18%), Grade 1/2 hypertension, proteinuria, and bleeding each developed in 1 patient (9%). The overall response rate was 82% with 36% complete response (CR)/complete response unconfirmed (CRu). The median progression-free survival (n = 11) was 18 months (95% confidence interval, 3-not reached), and 3-year overall survival rate was 82%. Correlative studies showed increased vascular endothelial growth factor receptor 1 expression in tumor cells at baseline, and elevated levels of plasma vascular endothelial growth factor (VEGF) throughout treatment. CONCLUSION The addition of bevacizumab to the standard R-CHOP regimen did not appear to significantly improve efficacy beyond that observed from previous studies using R-CHOP alone. Therapeutic strategies that provide sustained inhibition on VEGF-related and VEGF-independent targets within the tumor microenvironment might further improve antiangiogenic effects and warrant further exploration in MCL.
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Affiliation(s)
- Jia Ruan
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY
| | - Stephanie A Gregory
- Division of Hematology and Medical Oncology, Rush University Medical Center, Chicago, IL
| | - Paul Christos
- Division of Biostatistics and Epidemiology, Weill Cornell Medical College, New York, NY
| | - Peter Martin
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY
| | - Richard R Furman
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY
| | - Morton Coleman
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY
| | - John P Leonard
- Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York, NY.
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24
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Xiu B, Zhang W, Huang B, Chen J, Lu H, Fu J, Xiong H, Liang A. Genetic inhibition of vascular endothelial growth factor receptor-1 significantly inhibits the migration and proliferation of leukemia cells and increases their sensitivity to chemotherapy. Oncol Rep 2013; 29:2030-8. [PMID: 23503608 DOI: 10.3892/or.2013.2348] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 01/16/2013] [Indexed: 11/06/2022] Open
Abstract
Little is known about the role of vascular endothelial growth factor (VEGF) receptor-1 (VEGFR-1) in acute leukemia. In this study, using real-time PCR and ELISA, we found that VEGF and VEGFR-1 are highly expressed in U937 leukemia cells and primary leukemia cells (M4/M5 subtypes), which are associated with an increased migration rate and extramedullary disease. In order to elucidate the role of VEGFR-1 in acute leukemia, we used a lentivirus-mediated shRNA expression system to specifically inhibit VEGFR-1 expression in the U937 cell line. In addition, a series of in vitro experiments were conducted, including cell proliferation and migration assays and drug treatments. Our results showed that shRNA reduced the proliferation and migration of U937 cells. RNA interference targeting VEGFR-1 in combination with bevacizumab did not exert synergistic antitumor effects. However, shRNA enhanced the sensitivity of the U937 cells to cytarabine by decreasing the IC50 of cytarabine, reducing the number of cells in the S phase and suppressing the expression of the survivin gene. Taken together, these results suggest that VEGFR-1 interference may serve as a novel antitumor therapeutic strategy for the treatment of leukemia.
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Affiliation(s)
- Bing Xiu
- Department of Hematology, Tongji Hospital of Tongji University, Putuo, Shanghai 200065, PR China
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25
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Effects of autocrine vascular endothelial growth factor (VEGF) in non-small cell lung cancer cell line A549. Mol Biol Rep 2013; 40:3093-9. [PMID: 23459872 DOI: 10.1007/s11033-012-2383-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Accepted: 12/17/2012] [Indexed: 10/27/2022]
Abstract
It is reported that the autocrine loop of the vascular endothelial growth factor (VEGF) is crucial for the survival and proliferation of non-small cell lung cancer (NSCLC) tumors. In this study we aimed to systematically investigate the role of autocrine vascular VEGF in NSCLC cell line A549 through inhibition of endogenous VEGF. A549 cells were transfected with florescence-labeled VEGF oligodeoxynucleotide with lipofectamine. For the experimental group, cells were transfected with VEGF anti-sense oligodeoxynucleotide (ASODN), sense oligodeoxynucleotide (SODN) and mutant oligodeoxynuleotide (MODN) respectively. For the control group cells were mock transfected with lipofectamine or culture medium. At indicated time point after transfection, the expression levels of VEGF mRNA and protein in A549 cells were analyzed by RT-PCR and ELISA respectively. Cell viability was measured by the MTT assay. Cell cycle distribution was detected by flow cytometry. As revealed by RT-PCR assay, the mRNA level of VEGF in cells transfected with ASDON was significantly lower than the other four groups (P < 0.05) at 24 and 48 h after transfection. ELISA assay yielded similar result with significantly decreased level of VEGF protein expression (P < 0.05). The survival fraction of A549 cells transfected with ASDON was significantly lower than the other four groups (P < 0.05) at 24 h after transfection. Also the percentage of G2 phase cells of ASODN group was significantly lower than other four groups. Our data indicate that VEGF expression is efficiently inhibited in A549 cells by ASODN transfection and this inhibition leads to inhibited cell growth and impaired cell cycle distribution.
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26
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Increased angiogenesis-associated poor outcome in acute lymphoblastic leukemia: a single center study. Appl Immunohistochem Mol Morphol 2013; 20:488-93. [PMID: 22417860 DOI: 10.1097/pai.0b013e3182414c3b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Angiogenesis in solid tumors is important for tumor growth, invasion, and metastasis. However, angiogenesis plays also an important role in hematological malignancies. We have analyzed the expression of vascular endothelial growth factor (VEGF) in the leukemic blast cells and microvessel density (MVD) in the bone marrow biopsy samples of the patients with acute lymphoblastic leukemia (ALL). Bone marrow MVD of the patients with ALL was significantly higher compared with normal controls and complete remission (P<0.001), but slightly lower than in patients with relapsed ALL (P>0.05). The bone marrow blast VEGF expression was significantly higher in newly diagnosed ALL patients, with predominant strong VEGF expression as compared with complete remission patients (who had negative or weak VEGF expression) (P<0.05), whereas initial values were slightly lower than in relapsed patients. There was a strong positive correlation between VEGF expression and MVD at presentation of ALL. Stronger expression of VEGF on blast cells indicates shorter overall survival in ALL. Furthermore, initial values of MVD had positive correlation with overall survival and leukemia-free survival (P=0.024 and P=0.017, respectively). Our data suggest that increased angiogenesis (confirmed by immunohistochemical expression of VEGF in leukemic blasts), and MVD may play an important role in the pathophysiology of ALL with prognostic implications. Thus, targeting VEGF pathway may bring the new approach for ALL treatment-using antiangiogenic drugs and tyrosine kinase inhibitors in combination with standard chemotherapy regimens.
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27
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Paesler J, Gehrke I, Poll-Wolbeck SJ, Kreuzer KA. Targeting the vascular endothelial growth factor in hematologic malignancies. Eur J Haematol 2012; 89:373-84. [DOI: 10.1111/ejh.12009] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2012] [Indexed: 12/16/2022]
Affiliation(s)
- Julian Paesler
- Department I of Internal Medicine I; University at Cologne; Cologne; Germany
| | - Iris Gehrke
- Department I of Internal Medicine I; University at Cologne; Cologne; Germany
| | | | - Karl-Anton Kreuzer
- Department I of Internal Medicine I; University at Cologne; Cologne; Germany
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28
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LEE MYOUNGWOO, KIM HYEJIN, YOO KEONHEE, KIM DAESEONG, YANG JINMO, KIM HYERYUNG, NOH YOOHUN, BAEK HYUNJUNG, KWON HEECHUNG, SON MEONGHI, LEE SOOHYUN, CHEUH HEEWON, JUNG HYELIM, SUNG KIWOONG, KOO HONGHOE. Establishment of a bioluminescent imaging-based in vivo leukemia model by intra-bone marrow injection. Int J Oncol 2012; 41:2047-56. [DOI: 10.3892/ijo.2012.1634] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Accepted: 07/23/2012] [Indexed: 11/06/2022] Open
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29
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Dewerchin M, Carmeliet P. PlGF: a multitasking cytokine with disease-restricted activity. Cold Spring Harb Perspect Med 2012; 2:cshperspect.a011056. [PMID: 22908198 DOI: 10.1101/cshperspect.a011056] [Citation(s) in RCA: 161] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Placental growth factor (PlGF) is a member of the vascular endothelial growth factor (VEGF) family that also comprises VEGF-A (VEGF), VEGF-B, VEGF-C, and VEGF-D. Unlike VEGF, PlGF is dispensable for development and health but has diverse nonredundant roles in tissue ischemia, malignancy, inflammation, and multiple other diseases. Genetic and pharmacological gain-of-function and loss-of-function studies have identified molecular mechanisms of this multitasking cytokine and characterized the therapeutic potential of delivering or blocking PlGF for various disorders.
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Affiliation(s)
- Mieke Dewerchin
- Laboratory of Angiogenesis and Neurovascular Link, VIB Vesalius Research Center, K.U. Leuven, Leuven, Belgium
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30
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CD105 and placental growth factor – Potent prognostic factors in childhood acute lymphoblastic leukaemia. Leuk Res 2012; 36:846-51. [DOI: 10.1016/j.leukres.2012.03.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2011] [Revised: 02/27/2012] [Accepted: 03/18/2012] [Indexed: 11/20/2022]
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31
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Gautier B, Miteva MA, Goncalves V, Huguenot F, Coric P, Bouaziz S, Seijo B, Gaucher JF, Broutin I, Garbay C, Lesnard A, Rault S, Inguimbert N, Villoutreix BO, Vidal M. Targeting the proangiogenic VEGF-VEGFR protein-protein interface with drug-like compounds by in silico and in vitro screening. ACTA ACUST UNITED AC 2012; 18:1631-9. [PMID: 22195565 DOI: 10.1016/j.chembiol.2011.10.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Revised: 09/16/2011] [Accepted: 10/24/2011] [Indexed: 12/29/2022]
Abstract
Protein-protein interactions play a central role in medicine, and their modulation with small organic compounds remains an enormous challenge. Because it has been noted that the macromolecular complexes modulated to date have a relatively pronounced binding cavity at the interface, we decided to perform screening experiments over the vascular endothelial growth factor receptor (VEGFR), a validated target for antiangiogenic treatments with a very flat interface. We focused the study on the VEGFR-1 D2 domain, and 20 active compounds were identified. These small compounds contained a (3-carboxy-2-ureido)thiophen unit and had IC(50) values in the low micromolar range. The most potent compound inhibited the VEGF-induced VEGFR-1 transduction pathways. Our findings suggest that our best hit may be a promising scaffold to probe this macromolecular complex and for the development of treatments of VEGFR-1-dependent diseases.
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Affiliation(s)
- Benoit Gautier
- Université Paris Descartes, CNRS UMR 8601, UFR biomédicale, 75006 Paris, France
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Chowdhury S, Mandal C, Sarkar S, Bag AK, Vlasak R, Chandra S, Mandal C. Mobilization of lymphoblasts from bone marrow to peripheral blood in childhood acute lymphoblastic leukaemia: Role of 9-O-acetylated sialoglycoproteins. Leuk Res 2012; 36:146-55. [DOI: 10.1016/j.leukres.2011.10.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Revised: 10/18/2011] [Accepted: 10/19/2011] [Indexed: 10/15/2022]
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Abstract
Dynamic interactions between hematopoietic cells and their specialized bone marrow microenvironments, namely the vascular and osteoblastic 'niches', regulate hematopoiesis. The vascular niche is conducive for thrombopoiesis and megakaryocytes may, in turn, regulate the vascular niche, especially in supporting vascular and hematopoietic regeneration following irradiation or chemotherapy. A role for platelets in tumor growth and metastasis is well established and, more recently, the vascular niche has also been implicated as an area for preferential homing and engraftment of malignant cells. This article aims to provide an overview of the dynamic interactions between cellular and molecular components of the bone marrow vascular niche and the potential role of megakaryocytes in bone marrow malignancy.
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Affiliation(s)
- B Psaila
- Department of Haematology, Imperial College School of Medicine, London, UK.
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Abstract
Abstract
Targeting angiogenesis has become an established therapeutic approach to fighting solid tumor growth in cancer patients. Even though increased angiogenesis has long been recognized in various types of hematologic malignancies, the molecular basis underlying this angiogenic switch in leukemias remains poorly understood. The BM stroma is gaining increasing attention for its role in promoting leukemia growth and resistance against current treatments with tyrosine kinase inhibitors. This article provides a brief overview of the role of angiogenesis in leukemias, discusses recent insights into the role of placenta growth factor (PlGF), a VEGF family member, as a novel disease candidate in chronic myeloid leukemia (CML), and highlights the therapeutic potential of PlGF blockade for imatinib-resistant CML.
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Bruce D, Tan PH. Blocking the interaction of vascular endothelial growth factor receptors with their ligands and their effector signaling as a novel therapeutic target for cancer: time for a new look? Expert Opin Investig Drugs 2011; 20:1413-34. [DOI: 10.1517/13543784.2011.611801] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Expression of a functional VEGFR-1 in tumor cells is a major determinant of anti-PlGF antibodies efficacy. Proc Natl Acad Sci U S A 2011; 108:11590-5. [PMID: 21709213 DOI: 10.1073/pnas.1109029108] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
PlGF, one of the ligands for VEGFR-1, has been implicated in tumor angiogenesis. However, more recent studies indicate that genetic or pharmacological inhibition of PlGF signaling does not result in reduction of microvascular density in a variety of tumor models. Here we screened 12 human tumor cell lines and identified 3 that are growth inhibited by anti-PlGF antibodies in vivo. We found that efficacy of anti-PlGF treatment strongly correlates with VEGFR-1 expression in tumor cells, but not with antiangiogenesis. In addition, PlGF induced VEGFR-1 signaling and biological responses in tumor cell lines sensitive to anti-PlGF, but not in refractory tumor cell lines or in endothelial cells. Also, genetic ablation of VEGFR-1 signaling in the host did not affect the efficacy of PlGF blockade. Collectively, these findings suggest that the role of PlGF in tumorigenesis largely consists of promoting autocrine/paracrine growth of tumor cells expressing a functional VEGFR-1 rather than stimulation of angiogenesis.
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Schmidt T, Kharabi Masouleh B, Loges S, Cauwenberghs S, Fraisl P, Maes C, Jonckx B, De Keersmaecker K, Kleppe M, Tjwa M, Schenk T, Vinckier S, Fragoso R, De Mol M, Beel K, Dias S, Verfaillie C, Clark RE, Brümmendorf TH, Vandenberghe P, Rafii S, Holyoake T, Hochhaus A, Cools J, Karin M, Carmeliet G, Dewerchin M, Carmeliet P. Loss or inhibition of stromal-derived PlGF prolongs survival of mice with imatinib-resistant Bcr-Abl1(+) leukemia. Cancer Cell 2011; 19:740-53. [PMID: 21665148 DOI: 10.1016/j.ccr.2011.05.007] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2010] [Revised: 01/05/2011] [Accepted: 05/05/2011] [Indexed: 12/12/2022]
Abstract
Imatinib has revolutionized the treatment of Bcr-Abl1(+) chronic myeloid leukemia (CML), but, in most patients, some leukemia cells persist despite continued therapy, while others become resistant. Here, we report that PlGF levels are elevated in CML and that PlGF produced by bone marrow stromal cells (BMSCs) aggravates disease severity. CML cells foster a soil for their own growth by inducing BMSCs to upregulate PlGF, which not only stimulates BM angiogenesis, but also promotes CML proliferation and metabolism, in part independently of Bcr-Abl1 signaling. Anti-PlGF treatment prolongs survival of imatinib-sensitive and -resistant CML mice and adds to the anti-CML activity of imatinib. These results may warrant further investigation of the therapeutic potential of PlGF inhibition for (imatinib-resistant) CML.
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MESH Headings
- Animals
- Benzamides
- Bone Marrow Cells/metabolism
- Cell Line, Tumor
- Drug Resistance, Neoplasm
- Fusion Proteins, bcr-abl/physiology
- Humans
- Imatinib Mesylate
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/etiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/metabolism
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- NF-kappa B/physiology
- Osteolysis/prevention & control
- Piperazines/therapeutic use
- Placenta Growth Factor
- Pregnancy Proteins/antagonists & inhibitors
- Pregnancy Proteins/blood
- Pregnancy Proteins/physiology
- Pyrimidines/therapeutic use
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Affiliation(s)
- Thomas Schmidt
- Laboratory of Angiogenesis & Neurovascular Link, Vesalius Research Center (VRC), VIB, K.U. Leuven, Belgium
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Casalou C, Costa A, Carvalho T, Gomes AL, Zhu Z, Wu Y, Dias S. Cholesterol regulates VEGFR-1 (FLT-1) expression and signaling in acute leukemia cells. Mol Cancer Res 2011; 9:215-24. [PMID: 21209384 DOI: 10.1158/1541-7786.mcr-10-0155] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
VEGF receptors 1 (FLT-1) and 2 (KDR) are expressed on subsets of acute myeloid leukemia (AML) and acute lymphoid leukemia cells, in which they induce cell survival, proliferation, and migration. However, little is known about possible cofactors that regulate VEGF receptor expression and activation on leukemia cells. Here we show that cholesterol accumulates in leukemia-rich sites within bone marrow of xenotransplanted severe combined immunodeficient (SCID) mice. Therefore, we hypothesized that cholesterol-rich domains might regulate FLT-1 signaling and chemotaxis of acute leukemias. We then showed that FLT-1 accumulates in discrete cholesterol-rich membrane domains where it associates with caveolin-1 and that placenta growth factor (PlGF)/VEGF stimulation promotes FLT-1 localization in such cholesterol-rich domains. Accordingly, FLT-1 localization and its phosphorylation are abrogated by methyl-β-cyclodextrin (MβCD), which removes cellular cholesterol, and by nystatin, an inhibitor of lipid-raft endocytosis. Mechanistically, cholesterol increases FLT-1 expression and promotes PlGF/VEGF-induced leukemia cells viability and also induces VEGF production by the leukemia cells in vitro. Taken together, we conclude that cholesterol regulates VEGF:VEGFR-1 signaling on subsets of acute leukemias, modulating cell migration, and viability, which may be crucial for disease progression. Finally, we provide evidence obtained from human AML samples that primary leukemia cells accumulate significantly more cholesterol than do normal cells and that cholesterol accumulation correlates with disease aggressiveness.
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Affiliation(s)
- Cristina Casalou
- Angiogenesis Group, Instituto Português de Oncologia Franscisco Gentil de Lisboa, EPE (CIPM/IPOLFG), Lisbon 1099-023, Portugal
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Tang Z, Liu XY, Zou P. Resveratrol inhibits the secretion of vascular endothelial growth factor and subsequent proliferation in human leukemia U937 cells. ACTA ACUST UNITED AC 2010; 27:508-12. [PMID: 18060622 DOI: 10.1007/s11596-007-0508-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2006] [Indexed: 12/15/2022]
Abstract
This study examined the effect of resveratrol on the secretion of vascular endothelial growth factor (VEGF) and subsequent proliferation of human leukemia U937 cells, and explored the mechanisms involved. Human leukemia U937 cells were treated with resveratrol of different concentrations (12.5-200 micromol/L) for different time lengths (12-48 h). The proliferation of the U937 leukemic cells was determined by MTT assay. Apoptosis was observed by Annexin-V-FIFC/PI double staining and flow cytometry (FCM). Cells cycle was analyzed by PI staining and FCM. The content of VEGF was determined by ELISA. Human umbilical vein endothelial cells were examined for vasoformation in vitro after exposures to resveratrol of various concentrations. The results showed that resveratrol inhibited the proliferation of U937 leukemia cells in a dose-and time-dependent manner. Resveratrol induced apoptosis and S-phase cell cycle arrest in human leukemic U937 cells. Resveratrol inhibited the secretion of VEGF in U937 cells. Resveratrol inhibited the vasoformation of human vein endothelial cells in a dose-dependent manner. It was concluded that resveratrol could down-regulate the secretion of VEGF, induce apoptosis and suppress the proliferation of U937 cells.
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Affiliation(s)
- Zehai Tang
- Department of Emergency, Huazhong University of Science and Technology, Wuhan, China.
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Macy ME, DeRyckere D, Gore L. Vandetanib mediates anti-leukemia activity by multiple mechanisms and interacts synergistically with DNA damaging agents. Invest New Drugs 2010; 30:468-79. [PMID: 21046425 DOI: 10.1007/s10637-010-9572-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2010] [Accepted: 10/20/2010] [Indexed: 12/16/2022]
Abstract
Vandetanib is an orally active small molecule tyrosine kinase inhibitor (TKI) with activity against several pathways implicated in malignancy including the vascular endothelial growth factor receptor pathway, the epidermal growth factor receptor pathway, the platelet derived growth factor receptor β pathway, and REarranged during Transfection pathway. To determine if vandetanib-mediated inhibition of receptor tyrosine kinases is a potential therapeutic strategy for pediatric acute leukemia, these studies aimed to characterize the activity of vandetanib against acute leukemia in vitro. Treatment of leukemia cell lines with vandetanib resulted in a dose-dependent decrease in proliferation and survival. Vandetanib's anti-leukemic activity appeared mediated by multiple mechanisms including accumulation in G1 phase at lower concentrations and apoptosis at higher concentrations. Alterations in cell surface markers also occurred with vandetanib treatment, suggesting induction of differentiation. In combination with DNA damaging agents (etoposide and doxorubicin) vandetanib demonstrated synergistic induction of cell death. However in combination with the anti-metabolite methotrexate, vandetanib had an antagonistic effect on cell death. Although several targets of vandetanib are expressed on acute leukemia cell lines, expression of vandetanib targets did not predict vandetanib sensitivity and alone are therefore not likely candidate biomarkers in patients with acute leukemia. Interactions between vandetanib and standard chemotherapy agents in vitro may help guide choice of combination regimens for further evaluation in the clinical setting for patients with relapsed/refractory acute leukemia. Taken together, these preclinical data support clinical evaluation of vandetanib, in combination with cytotoxic chemotherapy, for pediatric leukemia.
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Affiliation(s)
- Margaret E Macy
- Department of Pediatrics, Section of Hematology, Oncology, and Bone Marrow Transplantation, University of Colorado Denver, 13123 East 16th Avenue B-115, Aurora, CO 80045, USA.
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Niu G, Chen X. Vascular endothelial growth factor as an anti-angiogenic target for cancer therapy. Curr Drug Targets 2010; 11:1000-17. [PMID: 20426765 DOI: 10.2174/138945010791591395] [Citation(s) in RCA: 254] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2009] [Accepted: 04/14/2010] [Indexed: 12/12/2022]
Abstract
New blood vessel formation (angiogenesis) is fundamental to tumor growth, invasion, and metastatic dissemination. The vascular endothelial growth factor (VEGF) signaling pathway plays pivotal roles in regulating tumor angiogenesis. VEGF as a therapeutic target has been validated in various types of human cancers. Different agents including antibodies, aptamers, peptides, and small molecules have been extensively investigated to block VEGF and its pro-angiogenic functions. Some of these agents have been approved by FDA and some are currently in clinical trials. Combination therapies are also being pursued for better tumor control. By providing comprehensive real-time information, molecular imaging of VEGF pathway may accelerate the drug development process. Moreover, the imaging will be of great help for patient stratification and therapeutic effect monitoring, which will promote effective personalized molecular cancer therapy. This review summarizes the current status of tumor therapeutic agents targeting to VEGF and the applications of VEGF related molecular imaging.
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Affiliation(s)
- Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institute of Health, 9 Memorial Drive, Bethesda, MD 20892, USA.
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Chang CC, Hsieh YY, Lin WH, Lin CS. Leiomyoma and Vascular Endothelial Growth Factor Gene Polymorphisms: A Systematic Review. Taiwan J Obstet Gynecol 2010; 49:247-53. [DOI: 10.1016/s1028-4559(10)60056-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/26/2010] [Indexed: 01/19/2023] Open
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Samaranayake H, Määttä AM, Pikkarainen J, Ylä-Herttuala S. Future prospects and challenges of antiangiogenic cancer gene therapy. Hum Gene Ther 2010; 21:381-96. [PMID: 20163246 DOI: 10.1089/hum.2010.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
In 1971 Judah Folkman proposed the concept of antiangiogenesis as a therapeutic target for cancer. More than 30 years later, concept became reality with the approval of the antivascular endothelial growth factor (VEGF) monoclonal antibody bevacizumab as a first-line treatment for metastatic colorectal cancer. Monoclonal antibodies and small molecular drugs are the most widely applied methods for inhibition of angiogenesis. The efficacy of these antiangiogenic modalities has been proven, in both preclinical and clinical settings. Although angiogenesis plays a major role in wound healing, hypoxia, and in the female reproductive cycle, inhibition of angiogenesis seems to be a relatively safe therapeutic option against cancers, and has therefore become a logical arena for a wide range of experimentation. The twentieth century has shown the boom of gene therapy and thus it has been applied also in the antiangiogenic setting. This review summarizes methods to induce antiangiogenic responses with gene therapy and discusses the obstacles and future prospects of antiangiogenic cancer gene therapy.
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Ruan J, Martin P, Coleman M, Furman RR, Cheung K, Faye A, Elstrom R, Lachs M, Hajjar KA, Leonard JP. Durable responses with the metronomic rituximab and thalidomide plus prednisone, etoposide, procarbazine, and cyclophosphamide regimen in elderly patients with recurrent mantle cell lymphoma. Cancer 2010; 116:2655-64. [PMID: 20235190 PMCID: PMC3004744 DOI: 10.1002/cncr.25055] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Targeting the tumor microenvironment and angiogenesis is a novel lymphoma therapeutic strategy. The authors report safety, activity, and angiogenic profiling results with the rituximab and thalidomide plus prednisone, etoposide, procarbazine, and cyclophosphamide (RT-PEPC) regimen in patients with recurrent mantle cell lymphoma (MCL). METHODS RT-PEPC included induction (Months 1-3) of rituximab 4 times weekly, daily thalidomide (50 mg), and PEPC followed by maintenance thalidomide (100 mg), oral PEPC titrated to the neutrophil count, and rituximab every 4 months. Endpoints included safety, efficacy, quality of life (QoL), and translational studies, including tumor angiogenic phenotyping, plasma vascular endothelial growth factor (VEGF), and circulating endothelial cells. RESULTS Twenty-five patients were enrolled, and 22 were evaluable. The median age was 68 years (range, 52-81 years), 24 patients (96%) had stage III or IV disease, 18 patients (72%) had an International Prognostic Index (IPI) score of 3 to 5, and 20 patients (80%) had high-risk Mantle Cell International Prognostic Index (MIPI) scores. Patients had received a median of 2 previous therapies (range, 1-7 previous therapies), and 15 patients (60%) had progressed on bortezomib. At a median follow-up of 38 months, the overall response rate was 73% (complete response [CR]/unconfirmed CR rate, 32%; partial response [PR] rate, 41%; n = 22 patients), and the median progression-free survival was 10 months. Four CRs were ongoing (> or =6 months, > or =31 months, > or =48 months, and > or =50 months). Toxicities included grade 1 and 2 fatigue, rash, neuropathy, and cytopenias, including grade 1 and 2 thrombocytopenia (64%) and grade 3 and 4 neutropenia (64%). Two thromboses and 5 episodes of grade 3 or 4 infections occurred. QoL was maintained or improved. Correlative studies demonstrated tumor autocrine angiogenic loop (expression of VEGF A and VEGF receptor 1) and heightened angiogenesis and lymphangiogenesis in stroma. Plasma VEGF levels and circulating endothelial cells trended down with treatment. CONCLUSIONS RT-PEPC had significant and durable activity in MCL with manageable toxicity and maintained QoL. Novel, low-intensity approaches warrant further evaluation, potentially as initial therapy in elderly patients.
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Affiliation(s)
- Jia Ruan
- Division of Hematology-Oncology, Center for Lymphoma and Myeloma, Weill Cornell Medical College, New York, New York, USA
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Van de Veire S, Stalmans I, Heindryckx F, Oura H, Tijeras-Raballand A, Schmidt T, Loges S, Albrecht I, Jonckx B, Vinckier S, Van Steenkiste C, Tugues S, Rolny C, De Mol M, Dettori D, Hainaud P, Coenegrachts L, Contreres JO, Van Bergen T, Cuervo H, Xiao WH, Le Henaff C, Buysschaert I, Masouleh BK, Geerts A, Schomber T, Bonnin P, Lambert V, Haustraete J, Zacchigna S, Rakic JM, Jiménez W, Noël A, Giacca M, Colle I, Foidart JM, Tobelem G, Morales-Ruiz M, Vilar J, Maxwell P, Vinores SA, Carmeliet G, Dewerchin M, Claesson-Welsh L, Dupuy E, Van Vlierberghe H, Christofori G, Mazzone M, Detmar M, Collen D, Carmeliet P. Further Pharmacological and Genetic Evidence for the Efficacy of PlGF Inhibition in Cancer and Eye Disease. Cell 2010; 141:178-90. [DOI: 10.1016/j.cell.2010.02.039] [Citation(s) in RCA: 182] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2009] [Revised: 02/05/2010] [Accepted: 02/23/2010] [Indexed: 01/03/2023]
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Juszczynski P, Rodig SJ, Ouyang J, O'Donnell E, Takeyama K, Mlynarski W, Mycko K, Szczepanski T, Gaworczyk A, Krivtsov A, Faber J, Sinha AU, Rabinovich GA, Armstrong SA, Kutok JL, Shipp MA. MLL-rearranged B lymphoblastic leukemias selectively express the immunoregulatory carbohydrate-binding protein galectin-1. Clin Cancer Res 2010; 16:2122-30. [PMID: 20332322 DOI: 10.1158/1078-0432.ccr-09-2765] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
PURPOSE Patients with mixed lineage leukemia (MLL)-rearranged B-lymphoblastic leukemias (B-ALL) have an unfavorable prognosis and require intensified treatment. Multiple MLL fusion partners have been identified, complicating the diagnostic evaluation of MLL rearrangements. We analyzed molecular markers of MLL rearrangement for use in rapid diagnostic assays and found the immunomodulatory protein, Galectin-1 (Gal-1), to be selectively expressed in MLL-rearranged B-ALL. EXPERIMENTAL DESIGN Transcriptional profiling of ALL subtypes revealed selective overexpression of Gal-1 in MLL-rearranged ALLs. For this reason, we analyzed Gal-1 protein expression in MLL-germline and MLL-rearranged adult and infant pediatric B-ALLs and cell lines by immunoblotting, immunohistochemistry, and intracellular flow cytometry of viable tumor cell suspensions. Because deregulated gene expression in MLL-rearranged leukemias may be related to the altered histone methyltransferase activity of the MLL fusion protein complex, we also analyzed histone H3 lysine 79 (H3K79) dimethylation in the LGALS1 promoter region using chromatin immunoprecipitation. RESULTS Gal-1 transcripts were significantly more abundant in MLL-rearranged B-ALLs. All 32 primary MLL-rearranged B-ALLs exhibited abundant Gal-1 immunostaining, regardless of the translocation partner, whereas only 2 of 81 germline-MLL B-ALLs expressed Gal-1. In addition, Gal-1 was selectively detected in newly diagnosed MLL-rearranged B-ALLs by intracellular flow cytometry. The LGALS1 promoter H3K79 was significantly hypermethylated in MLL-rearranged B-ALLs compared with MLL-germline B-ALLs and normal pre-B cells. CONCLUSION In B-ALL, Gal-1 is a highly sensitive and specific biomarker of MLL rearrangement that is likely induced by a MLL-dependent epigenetic modification.
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Affiliation(s)
- Przemyslaw Juszczynski
- Department of Medical Oncology, Dana-Farber Cancer Institute; Department of Pathology, Brigham & Women's Hospital,75 Francis Street, Boston, MA, 02115, USA
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In vitro secretion of matrix metalloprotease 9 is a prognostic marker in childhood acute lymphoblastic leukemia. Leuk Res 2010; 34:24-31. [DOI: 10.1016/j.leukres.2009.07.039] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2009] [Revised: 07/25/2009] [Accepted: 07/26/2009] [Indexed: 11/18/2022]
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VEGF-A-stimulated signalling in endothelial cells via a dual receptor tyrosine kinase system is dependent on co-ordinated trafficking and proteolysis. Biochem Soc Trans 2009; 37:1193-7. [DOI: 10.1042/bst0371193] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The mammalian endothelium expresses two related but distinct receptor tyrosine kinases, VEGFR1 and VEGFR2 [VEGF (vascular endothelial growth factor) receptor 1 and 2], that regulate the vascular response to a key cytokine, VEGF-A. In the present review, we suggest a model for integrating the signals from these receptor tyrosine kinases by co-ordinating the spatial and temporal segregation of these membrane proteins linked to distinct signalling outputs associated with each intracellular location. Activation of pro-angiogenic VEGFR2 stimulates a programme of tyrosine phosphorylation, ubiquitination and proteolysis. This is linked to ESCRT (endosomal sorting complex required for transport)-mediated recognition of activated VEGFR2 and sorting in endosomes before arrival in lysosomes for terminal degradation. In addition, Rab GTPases regulate key events in VEGFR2 trafficking between the plasma membrane, early and late endosomes, with distinct roles for Rab4a, Rab5a and Rab7a. Manipulation of GTPase levels affects not only VEGFR2 activation and intracellular signalling, but also functional outputs such as VEGF-A-stimulated endothelial cell migration. In contrast, VEGFR1 displays stable Golgi localization that can be perturbed by cell stimuli that elevate cytosolic Ca2+ ion levels. One model is that VEGFR1 translocates from the trans-Golgi network to the plasma membrane via a calcium-sensitive trafficking step. This allows rapid and preferential sequestration of VEGF-A by the higher-affinity VEGFR1, thus blocking further VEGFR2 activation. Recycling or degradation of VEGFR1 allows resensitization of the VEGFR2-dependent signalling pathway. Thus a dual VEGFR system with a built-in negative-feedback loop is utilized by endothelial cells to sense a key cytokine in vascular tissues.
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Maru Y. Logical structures extracted from metastasis experiments. Cancer Sci 2009; 100:2006-13. [PMID: 19709126 PMCID: PMC11158906 DOI: 10.1111/j.1349-7006.2009.01300.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2009] [Revised: 07/21/2009] [Accepted: 07/23/2009] [Indexed: 06/09/2024] Open
Abstract
An inductive argument of metastasis with a metaphor of seed and soil was made by Stephen Paget in 1889. It is commonly held that metastasis is dependent on both the organ from which the primary tumors originate, and the organs to which the tumor cells travel. The assumption is based on the statistical observation of a number of autopsy samples. Here I attempt to establish a theory on the mechanisms of metastasis with experimental evidence. I propose that dysregulation of pro-inflammatory Toll-like receptor 4 signaling, stimulated by its endogenous ligands, establishes pre-metastatic soil. Once specific parameters are established, deductive judgments could be possible to predict to which organ a given tumor metastasizes.
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Affiliation(s)
- Yoshiro Maru
- Department of Pharmacology, Tokyo Womens Medical University, Shinjuku-ku, Tokyo, Japan.
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Expression of VEGF and VEGF receptors in childhood precursor B-cell acute lymphoblastic leukemia evaluated by immunohistochemistry. J Pediatr Hematol Oncol 2009; 31:696-701. [PMID: 19707156 DOI: 10.1097/mph.0b013e3181b258df] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Perturbation in the expression and signaling pathways of vascular endothelial growth factor (VEGF) has been linked to pathogenesis of hematologic malignancies. We investigated the expression and clinical importance of VEGF and two of its receptors, VEGFR-1 and VEGFR-2, in childhood precursor B-cell acute lymphoblastic leukemia (pre-B ALL) by using immunohistochemistry. These angiogenic proteins were expressed in the majority of leukemic bone marrow samples. Notably, pre-B ALL patients had significantly increased expression of VEGFR-1 compared with no expression in the nonmalignant group, indicating a link between VEGFR-1 protein expression and pre-B ALL. These novel findings suggest that VEGFR-1 may have clinical importance in childhood pre-B ALL.
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