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Zaragoza-Huesca D, Rodenas MC, Peñas-Martínez J, Pardo-Sánchez I, Peña-García J, Espín S, Ricote G, Nieto A, García-Molina F, Vicente V, Lozano ML, Carmona-Bayonas A, Mulero V, Pérez-Sánchez H, Martínez-Martínez I. Suramin, a drug for the treatment of trypanosomiasis, reduces the prothrombotic and metastatic phenotypes of colorectal cancer cells by inhibiting hepsin. Biomed Pharmacother 2023; 168:115814. [PMID: 37918256 DOI: 10.1016/j.biopha.2023.115814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/23/2023] [Accepted: 10/28/2023] [Indexed: 11/04/2023] Open
Abstract
Recently, our group identified serine-protease hepsin from primary tumor as a biomarker of metastasis and thrombosis in patients with localized colorectal cancer. We described hepsin promotes invasion and thrombin generation of colorectal cancer cells in vitro and in vivo and identified venetoclax as a hepsin inhibitor that suppresses these effects. Now, we aspire to identify additional hepsin inhibitors, aiming to broaden the therapeutic choices for targeted intervention in colorectal cancer. METHODS We developed a virtual screening based on molecular docking between the hepsin active site and 2000 compounds from DrugBank. The most promising drug was validated in a hepsin activity assay. Subsequently, we measured the hepsin inhibitor effect on colorectal cancer cells with basal or overexpression of hepsin via wound-healing, gelatin matrix invasion, and plasma thrombin generation assays. Finally, a zebrafish model determined whether hepsin inhibition reduced the invasion of colorectal cancer cells overexpressing hepsin. RESULTS Suramin was the most potent hepsin inhibitor (docking score: -11.9691 Kcal/mol), with an IC50 of 0.66 µM. In Caco-2 cells with basal or overexpression of hepsin, suramin decreased migration and significantly reduced invasion and thrombin generation. Suramin did not reduce the thrombotic phenotype in the hepsin-negative colorectal cancer cells HCT-116 and DLD-1. Finally, suramin significantly reduced the in vivo invasion of Caco-2 cells overexpressing hepsin. CONCLUSION Suramin is a novel hepsin inhibitor that reduces its protumorigenic and prothrombotic effects in colorectal cancer cells. This suggests the possibility of repurposing suramin and its derivatives to augment the repertoire of molecular targeted therapies against colorectal cancer.
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Affiliation(s)
- David Zaragoza-Huesca
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Maria Carmen Rodenas
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Julia Peñas-Martínez
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Irene Pardo-Sánchez
- Department of Cell Biology, Faculty of Biology, Universidad de Murcia, CIBERER, IMIB-Pascual Parrilla, 30100 Murcia, Spain.
| | - Jorge Peña-García
- Structural Bioinformatics and High Performance Computing Research Group (BIO-HPC), Computer Engineering Department, UCAM Universidad Católica de Murcia, 30107, Murcia, Spain.
| | - Salvador Espín
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Guillermo Ricote
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Andrés Nieto
- Department of Pathology, Hospital Universitario Morales Meseguer, 30008 Murcia, Spain.
| | | | - Vicente Vicente
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Maria Luisa Lozano
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Alberto Carmona-Bayonas
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
| | - Victoriano Mulero
- Department of Cell Biology, Faculty of Biology, Universidad de Murcia, CIBERER, IMIB-Pascual Parrilla, 30100 Murcia, Spain.
| | - Horacio Pérez-Sánchez
- Structural Bioinformatics and High Performance Computing Research Group (BIO-HPC), Computer Engineering Department, UCAM Universidad Católica de Murcia, 30107, Murcia, Spain.
| | - Irene Martínez-Martínez
- Department of Hematology and Medical Oncology, Hospital Universitario Morales Meseguer, Centro Regional de Hemodonación, CIBERER, Universidad de Murcia, IMIB-Pascual Parrilla, 30003 Murcia, Spain.
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Koval A, Xu J, Williams N, Schmolke M, Krause KH, Katanaev VL. Wnt-Independent SARS-CoV-2 Infection in Pulmonary Epithelial Cells. Microbiol Spectr 2023; 11:e0482722. [PMID: 37367224 PMCID: PMC10433849 DOI: 10.1128/spectrum.04827-22] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 06/12/2023] [Indexed: 06/28/2023] Open
Abstract
The Wnt signaling pathway within host cells regulates infections by several pathogenic bacteria and viruses. Recent studies suggested that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection depends on β-catenin and can be inhibited by the antileprotic drug clofazimine. Since clofazimine has been identified by us as a specific inhibitor of Wnt/β-catenin signaling, these works could indicate a potential role of the Wnt pathway in SARS-CoV-2 infection. Here, we show that the Wnt pathway is active in pulmonary epithelial cells. However, we find that in multiple assays, SARS-CoV-2 infection is insensitive to Wnt inhibitors, including clofazimine, acting at different levels within the pathway. Our findings assert that endogenous Wnt signaling in the lung is unlikely required or involved in the SARS-CoV-2 infection and that pharmacological inhibition of this pathway with clofazimine or other compounds is not a universal way to develop treatments against the SARS-CoV-2 infection. IMPORTANCE The development of inhibitors of the SARS-CoV-2 infection remains a need of utmost importance. The Wnt signaling pathway in host cells is often implicated in infections by bacteria and viruses. In this work, we show that, despite previous indications, pharmacological modulation of the Wnt pathway does not represent a promising strategy to control SARS-CoV-2 infection in lung epithelia.
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Affiliation(s)
- Alexey Koval
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Jiabin Xu
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Nathalia Williams
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Mirco Schmolke
- Department of Microbiology and Molecular Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Karl-Heinz Krause
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Vladimir L. Katanaev
- Department of Cell Physiology and Metabolism, Translational Research Centre in Oncohaematology, Faculty of Medicine, University of Geneva, Geneva, Switzerland
- Institute of Life Sciences and Biomedicine, Far Eastern Federal University, Vladivostok, Russia
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3
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Purinergic signaling is essential for full Psickle activation by hypoxia and by normoxic acid pH in mature human sickle red cells and in vitro-differentiated cultured human sickle reticulocytes. Pflugers Arch 2022; 474:553-565. [PMID: 35169901 DOI: 10.1007/s00424-022-02665-z] [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: 09/09/2021] [Revised: 12/03/2021] [Accepted: 01/11/2022] [Indexed: 10/19/2022]
Abstract
Paracrine ATP release by erythrocytes has been shown to regulate endothelial cell function via purinergic signaling, and this erythoid-endothelial signaling network is pathologically dysregulated in sickle cell disease. We tested the role of extracellular ATP-mediated purinergic signaling in the activation of Psickle, the mechanosensitive Ca2+-permeable cation channel of human sickle erythrocytes (SS RBC). Psickle activation increases intracellular [Ca2+] to stimulate activity of the RBC Gardos channel, KCNN4/KCa3.1, leading to cell shrinkage and accelerated deoxygenation-activated sickling.We found that hypoxic activation of Psickle recorded by cell-attached patch clamp in SS RBC is inhibited by extracellular apyrase, which hydrolyzes extracellular ATP. Hypoxic activation of Psickle was also inhibited by the pannexin-1 inhibitor, probenecid, and by the P2 antagonist, suramin. A Psickle-like activity was also activated in normoxic SS RBC (but not in control red cells) by bath pH 6.0. Acid-activated Psickle-like activity was similarly blocked by apyrase, probenecid, and suramin, as well as by the Psickle inhibitor, Grammastola spatulata mechanotoxin-4 (GsMTx-4).In vitro-differentiated cultured human sickle reticulocytes (SS cRBC), but not control cultured reticulocytes, also exhibited hypoxia-activated Psickle activity that was abrogated by GsMTx-4. Psickle-like activity in SS cRBC was similarly elicited by normoxic exposure to acid pH, and this acid-stimulated activity was nearly completely blocked by apyrase, probenecid, and suramin, as well as by GsMTx-4.Thus, hypoxia-activated and normoxic acid-activated cation channel activities are expressed in both SS RBC and SS cRBC, and both types of activation appear to be mediated or greatly amplified by autocrine or paracrine purinergic signaling.
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Newton EE, Mueller LE, Treadwell SM, Morris CA, Machado HL. Molecular Targets of Triple-Negative Breast Cancer: Where Do We Stand? Cancers (Basel) 2022; 14:482. [PMID: 35158750 PMCID: PMC8833442 DOI: 10.3390/cancers14030482] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 01/11/2022] [Accepted: 01/14/2022] [Indexed: 11/16/2022] Open
Abstract
Triple-negative breast cancer (TNBC) is a highly aggressive form of breast cancer. Due to its heterogeneity and lack of hormone receptor expression, this subtype is more likely to metastasize and resist treatment attempts than are other forms of breast cancer. Due to the absence of targetable receptors, chemotherapy and breast conserving surgery have been the predominant treatment options for patients. However, resistance to chemotherapy and local recurrence of the tumors is frequent. Emerging immunotherapies have begun to change treatment plans for patients diagnosed with TNBC. In this review, we discuss the various immune pathways identified in TNBC and the role they play as targets for new potential treatment choices. Various therapeutic options that inhibit key pathways in cellular growth cycles, DNA repair mechanisms, epithelial mesenchymal transition, and immunosuppression have been shown to improve survival in patients with this disease. With promising results thus far, continued studies of immunotherapy and neoadjuvant therapy options for TNBC are likely to alter the treatment course for these diagnoses in the future.
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Affiliation(s)
- Emma E. Newton
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Lauren E. Mueller
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Scout M. Treadwell
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
| | - Cindy A. Morris
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA 70112, USA;
| | - Heather L. Machado
- Department of Biochemistry and Molecular Biology, Tulane University School of Medicine, New Orleans, LA 70112, USA; (E.E.N.); (L.E.M.); (S.M.T.)
- Tulane Cancer Center, Louisiana Cancer Research Consortium, New Orleans, LA 70112, USA
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Parveen N, Lin YL, Chou RH, Sun CM, Yu C. Synthesis of Novel Suramin Analogs With Anti-Proliferative Activity via FGF1 and FGFRD2 Blockade. Front Chem 2022; 9:764200. [PMID: 35047478 PMCID: PMC8763243 DOI: 10.3389/fchem.2021.764200] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 10/20/2021] [Indexed: 12/12/2022] Open
Abstract
A promising approach in cancer therapy is the inhibition of cell proliferation using small molecules. In this study, we report the synthesis of suramin derivatives and their applications. We used NMR spectroscopy and docking simulations to confirm binding sites and three-dimensional models of the ligand-protein complex. The WST-1 assay was used to assess cell viability and cell proliferation in vitro to evaluate the inhibition of protein-protein interactions and to investigate the anti-proliferative activities in a breast cancer cell line. All the suramin derivatives showed anti-proliferative activity by blocking FGF1 binding to its receptor FGFRD2. The dissociation constant was measured by fluorescence spectroscopy. The suramin compound derivatives synthesized herein show potential as novel therapeutic agents for their anti-proliferative activity via the inhibition of protein-protein interactions. The cytotoxicity of these suramin derivatives was lower than that of the parent suramin compound, which may be considered a significant advancement in this field. Thus, these novel suramin derivatives may be considered superior anti-metastasis molecules than those of suramin.
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Affiliation(s)
- Nuzhat Parveen
- Chemistry Department, National Tsing Hua University, Hsinchu, Taiwan
| | - Yan-Liang Lin
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Ruey-Hwang Chou
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- The Ph.D. Program of Biotechnology and Biomedical Industry, China Medical University, Taichung, Taiwan
- Center for Molecular Medicine, China Medical University Hospital, Taichung, Taiwan
- Department of Medical Laboratory and Biotechnology, Asia University, Taichung, Taiwan
| | - Chung-Ming Sun
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chin Yu
- Chemistry Department, National Tsing Hua University, Hsinchu, Taiwan
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Solis GP, Kozhanova TV, Koval A, Zhilina SS, Mescheryakova TI, Abramov AA, Ishmuratov EV, Bolshakova ES, Osipova KV, Ayvazyan SO, Lebon S, Kanivets IV, Pyankov DV, Troccaz S, Silachev DN, Zavadenko NN, Prityko AG, Katanaev VL. Pediatric Encephalopathy: Clinical, Biochemical and Cellular Insights into the Role of Gln52 of GNAO1 and GNAI1 for the Dominant Disease. Cells 2021; 10:2749. [PMID: 34685729 PMCID: PMC8535069 DOI: 10.3390/cells10102749] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/29/2021] [Accepted: 10/12/2021] [Indexed: 11/19/2022] Open
Abstract
Heterotrimeric G proteins are immediate transducers of G protein-coupled receptors-the biggest receptor family in metazoans-and play innumerate functions in health and disease. A set of de novo point mutations in GNAO1 and GNAI1, the genes encoding the α-subunits (Gαo and Gαi1, respectively) of the heterotrimeric G proteins, have been described to cause pediatric encephalopathies represented by epileptic seizures, movement disorders, developmental delay, intellectual disability, and signs of neurodegeneration. Among such mutations, the Gln52Pro substitutions have been previously identified in GNAO1 and GNAI1. Here, we describe the case of an infant with another mutation in the same site, Gln52Arg. The patient manifested epileptic and movement disorders and a developmental delay, at the onset of 1.5 weeks after birth. We have analyzed biochemical and cellular properties of the three types of dominant pathogenic mutants in the Gln52 position described so far: Gαo[Gln52Pro], Gαi1[Gln52Pro], and the novel Gαo[Gln52Arg]. At the biochemical level, the three mutant proteins are deficient in binding and hydrolyzing GTP, which is the fundamental function of the healthy G proteins. At the cellular level, the mutants are defective in the interaction with partner proteins recognizing either the GDP-loaded or the GTP-loaded forms of Gαo. Further, of the two intracellular sites of Gαo localization, plasma membrane and Golgi, the former is strongly reduced for the mutant proteins. We conclude that the point mutations at Gln52 inactivate the Gαo and Gαi1 proteins leading to aberrant intracellular localization and partner protein interactions. These features likely lie at the core of the molecular etiology of pediatric encephalopathies associated with the codon 52 mutations in GNAO1/GNAI1.
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Affiliation(s)
- Gonzalo P. Solis
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland; (G.P.S.); (A.K.); (S.T.); (D.N.S.)
| | - Tatyana V. Kozhanova
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
- Department of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Alexey Koval
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland; (G.P.S.); (A.K.); (S.T.); (D.N.S.)
| | - Svetlana S. Zhilina
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
- Department of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Tatyana I. Mescheryakova
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Aleksandr A. Abramov
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Evgeny V. Ishmuratov
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Ekaterina S. Bolshakova
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Karina V. Osipova
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Sergey O. Ayvazyan
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
| | - Sébastien Lebon
- Unit of Pediatric Neurology and Neurorehabilitation, Division of Pediatrics, Woman-Mother-Child Department, Lausanne University Hospital (CHUV), 1011 Lausanne, Switzerland;
| | - Ilya V. Kanivets
- Center of Medical Genetics, Genomed Ltd., 115093 Moscow, Russia; (I.V.K.); (D.V.P.)
| | - Denis V. Pyankov
- Center of Medical Genetics, Genomed Ltd., 115093 Moscow, Russia; (I.V.K.); (D.V.P.)
| | - Sabina Troccaz
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland; (G.P.S.); (A.K.); (S.T.); (D.N.S.)
| | - Denis N. Silachev
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland; (G.P.S.); (A.K.); (S.T.); (D.N.S.)
- A.N. Belozersky Research Institute of Physico-Chemical Biology, Moscow State University, 119992 Moscow, Russia
- V.I. Kulakov National Medical Research Center of Obstetrics, Gynecology and Perinatology, 117997 Moscow, Russia
- School of Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
| | - Nikolay N. Zavadenko
- Department of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Andrey G. Prityko
- St. Luka’s Clinical Research Center for Children, 119620 Moscow, Russia; (T.V.K.); (S.S.Z.); (T.I.M.); (A.A.A.); (E.V.I.); (E.S.B.); (K.V.O.); (S.O.A.); (A.G.P.)
- Department of Neurology, Neurosurgery and Medical Genetics, Faculty of Pediatrics, Pirogov Russian National Research Medical University, 117997 Moscow, Russia;
| | - Vladimir L. Katanaev
- Translational Research Center in Oncohaematology, Department of Cell Physiology and Metabolism, Faculty of Medicine, University of Geneva, CH-1211 Geneva, Switzerland; (G.P.S.); (A.K.); (S.T.); (D.N.S.)
- School of Biomedicine, Far Eastern Federal University, 690090 Vladivostok, Russia
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Liu ZM, Lu CC, Shen PC, Chou SH, Shih CL, Chen JC, Tien YC. Suramin attenuates intervertebral disc degeneration by inhibiting NF-κB signalling pathway. Bone Joint Res 2021; 10:498-513. [PMID: 34372688 PMCID: PMC8414441 DOI: 10.1302/2046-3758.108.bjr-2020-0041.r3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Aims Interleukin (IL)-1β is one of the major pathogenic regulators during the pathological development of intervertebral disc degeneration (IDD). However, effective treatment options for IDD are limited. Suramin is used to treat African sleeping sickness. This study aimed to investigate the pharmacological effects of suramin on mitigating IDD and to characterize the underlying mechanism. Methods Porcine nucleus pulposus (NP) cells were treated with vehicle, 10 ng/ml IL-1β, 10 μM suramin, or 10 μM suramin plus IL-1β. The expression levels of catabolic and anabolic proteins, proinflammatory cytokines, mitogen-activated protein kinase (MAPK), and nuclear factor (NF)-κB-related signalling molecules were assessed by Western blotting, quantitative real-time polymerase chain reaction (qRT-PCR), and immunofluorescence analysis. Flow cytometry was applied to detect apoptotic cells. The ex vivo effects of suramin were examined using IDD organ culture and differentiation was analyzed by Safranin O-Fast green and Alcian blue staining. Results Suramin inhibited IL-1β-induced apoptosis, downregulated matrix metalloproteinase (MMP)-3, MMP-13, a disintegrin and metalloproteinase with thrombospondin motifs (ADAMTS)-4, and ADAMTS-5, and upregulated collagen 2A (Col2a1) and aggrecan in IL-1β-treated NP cells. IL-1β-induced inflammation, assessed by IL-1β, IL-8, and tumour necrosis factor α (TNF-α) upregulation, was alleviated by suramin treatment. Suramin suppressed IL-1β-mediated proteoglycan depletion and the induction of MMP-3, ADAMTS-4, and pro-inflammatory gene expression in ex vivo experiments. Conclusion Suramin administration represents a novel and effectively therapeutic approach, which could potentially alleviate IDD by reducing extracellular matrix (ECM) deposition and inhibiting apoptosis and inflammatory responses in the NP cells. Cite this article: Bone Joint Res 2021;10(8):498–513.
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Affiliation(s)
- Zi-Miao Liu
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Chang Lu
- Department of Orthopedics, Faculty of Medical School, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Po-Chih Shen
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shih-Hsiang Chou
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chia-Lung Shih
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jian-Chih Chen
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yin Chun Tien
- Department of Orthopedics, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Orthopedics, Faculty of Medical School, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Tian J, Lu Z, Niu S, Zhang S, Ying P, Wang L, Zhang M, Cai Y, Dong T, Zhu Y, Zhong R, Wang Z, Chang J, Miao X. Aberrant MCM10 SUMOylation induces genomic instability mediated by a genetic variant associated with survival of esophageal squamous cell carcinoma. Clin Transl Med 2021; 11:e485. [PMID: 34185429 PMCID: PMC8236122 DOI: 10.1002/ctm2.485] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 06/13/2021] [Accepted: 06/16/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is one of the common gastrointestinal malignancy with an inferior prognosis outcome. DNA replication licensing aberration induced by dysregulation of minichromosome maintenance proteins (MCMs) causes genomic instability and cancer metastasis. SUMOylation modification plays a pivotal role in regulation of genomic integrity, while its dysregulation fueled by preexisting germline variants in cancers remains poorly understood. METHODS Firstly, we conducted two-stage survival analysis consisting of an exome-wide association study in 904 ESCC samples and another independent 503 ESCC samples. Then, multipronged functional experiments were performed to illuminate the potential biological mechanisms underlying the promising variants, and MCM10 influences the ESCC progression. Finally, we tested the effects of MCM10 inhibitors on ESCC cells. RESULTS A germline variant rs2274110 located at the exon 15 of MCM10 was identified to be significantly associated with the prognosis of ESCC patients. Individuals carrying rs2274110-AA genotypes confer a poor survival (hazard ratio = 1.61, 95% confidence interval = 1.35-1.93, p = 1.35 × 10-7 ), compared with subjects carrying rs2274110-AG/GG genotypes. Furthermore, we interestingly found that the variant can increase SUMOylation levels at K669 site (Lys[K]699Arg[R]) of MCM10 protein mediated by SUMO2/3 enzymes, which resulted in an aberrant overexpression of MCM10. Mechanistically, aberrant overexpression of MCM10 facilitated the proliferation and metastasis abilities of ESCC cells in vitro and in vivo by inducing DNA over-replication and genomic instability, providing functional evidence to support our population finding that high expression of MCM10 is extensively presented in tumor tissues of ESCC and correlated with inferior survival outcomes of multiple cancer types, including ESCC. Finally, MCM10 inhibitors Suramin and its analogues were revealed to effectively block the metastasis of ESCC cells. CONCLUSIONS These findings not only demonstrate a potential biological mechanism between aberrant SUMOylation, genomic instability and cancer metastasis, but also provide a promising biomarker aiding in stratifying ESCC individuals with different prognosis, as well as a potential therapeutic target MCM10.
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Affiliation(s)
- Jianbo Tian
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Zequn Lu
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Siyuan Niu
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Shanshan Zhang
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Pingting Ying
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Lu Wang
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Ming Zhang
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Yimin Cai
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Tianyi Dong
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Ying Zhu
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Rong Zhong
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Zhihua Wang
- Department of UrologyTongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina
| | - Jiang Chang
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
| | - Xiaoping Miao
- Department of Epidemiology and BiostatisticsKey Laboratory for Environment and HealthSchool of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanChina
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9
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Katanaev VL, Blagodatski A, Xu J, Khotimchenko Y, Koval A. Mining Natural Compounds to Target WNT Signaling: Land and Sea Tales. Handb Exp Pharmacol 2021; 269:215-248. [PMID: 34455487 DOI: 10.1007/164_2021_530] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
WNT signaling plays paramount roles in organism development, physiology, and disease, representing a highly attractive target for drug development. However, no WNT-modulating drugs have been approved, with several candidates trudging through the early clinical trials. This delay instigates alternative approaches to discover WNT-modulating drugs. Natural products were the source of therapeutics for centuries, but the chemical diversity they offer, especially when looking at different taxonomic groups and habitats, is still to a large extent unexplored. These considerations urge researchers to screen natural compounds for the WNT-modulatory activities. Since several reviews on such endeavors exist, we here have attempted to present these efforts as "Land and sea tales" (citing the book title by Rudyard Kipling) superimposing them onto the traditional pipeline of drug discovery and early development. In doing so, we illustrate each step of the pipeline with case studies stemming from our own research. It will become obvious that several steps of the pipeline need to be modified when applied to natural products rather than to synthetic libraries. Yet the main message of this chapter is that natural compounds represent a powerful source for the WNT signaling modulators and can be developed towards drug candidates against WNT-dependent maladies.
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Affiliation(s)
- Vladimir L Katanaev
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland.
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia.
| | - Artem Blagodatski
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- Institute of Theoretical and Experimental Biophysics, Russian Academy of Sciences Pushchino, Moscow, Russia
| | - Jiabin Xu
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland
| | - Yuri Khotimchenko
- School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
- National Scientific Center for Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok, Russia
| | - Alexey Koval
- Department of Cell Physiology and Metabolism, Faculty of Medicine, Translational Research Centre in Oncohaematology, University of Geneva, Geneva, Switzerland
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10
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Attri A, Thakur D, Kaur T, Sensale S, Peng Z, Kumar D, Singh RP. Nanoparticles Incorporating a Fluorescence Turn-on Reporter for Real-Time Drug Release Monitoring, a Chemoenhancer and a Stealth Agent: Poseidon's Trident against Cancer? Mol Pharm 2020; 18:124-147. [PMID: 33346663 DOI: 10.1021/acs.molpharmaceut.0c00730] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The rate and extent of drug release under physiological conditions is a key factor influencing the therapeutic activity of a formulation. Real-time detection of drug release by conventional pharmacokinetics approaches is confounded by low sensitivity, particularly in the case of tissue-targeted novel drug delivery systems, where low concentrations of the drug reach systemic circulation. We present a novel fluorescence turn-on platform for real-time monitoring of drug release from nanoparticles based on reversible fluorescence quenching in fluorescein esters. Fluorescein-conjugated carbon nanotubes (CNTs) were esterified with methotrexate in solution and solid phase, followed by supramolecular functionalization with a chemoenhancer (suramin) or/and a stealth agent (dextran sulfate). Suramin was found to increase the cytotoxicity of methotrexate in A549 cells. On the other hand, dextran sulfate exhibited no effect on cytotoxicity or cellular uptake of CNTs by A549 cells, while a decrease in cellular uptake of CNTs and cytotoxicity of methotrexate was observed in macrophages (RAW 264.7 cells). Similar results were also obtained when CNTs were replaced with graphene. Docking studies revealed that the conjugates are not internalized by folate receptors/transporters. Further, docking and molecular dynamics studies revealed the conjugates do not exhibit affinity toward the methotrexate target, dihydrofolate reductase. Molecular dynamics studies also revealed that distinct features of dextran-CNT and suramin-CNT interactions, characterized by π-π interactions between CNTs and dextran/suramin. Our study provides a simple, cost-effective, and scalable method for the synthesis of nanoparticles conferred with the ability to monitor drug release in real-time. This method could also be extended to other drugs and other types of nanoparticles.
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Affiliation(s)
- Arjun Attri
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173 221, India
| | - Deepak Thakur
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173 221, India
| | - Taranpreet Kaur
- Department of Biotechnology, Government Mohindra College, Patiala, Punjab 147 001, India
| | - Sebastian Sensale
- Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556-5637, United States
| | - Zhangli Peng
- Center for Bioinformatics and Quantitative Biology, Richard and Loan Hill Department of Bioengineering, University of Illinois, Chicago, Illinois 60612, United States
| | - Deepak Kumar
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173 221, India
| | - Raman Preet Singh
- School of Pharmaceutical Sciences, Shoolini University, Solan, Himachal Pradesh 173 221, India.,Department of Pharmacy, Government Polytechnic College, Bathinda, Punjab 151 001, India
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11
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The Signaling Duo CXCL12 and CXCR4: Chemokine Fuel for Breast Cancer Tumorigenesis. Cancers (Basel) 2020; 12:cancers12103071. [PMID: 33096815 PMCID: PMC7590182 DOI: 10.3390/cancers12103071] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/05/2020] [Accepted: 10/18/2020] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Breast cancer remains the most common malignancy in women. In this review, we explore the role of the CXCL12/CXCR4 pathway in breast cancer. We show that the CXCL12/CXCR4 cascade is involved in nearly every aspect of breast cancer tumorigenesis including proliferation, cell motility and distant metastasis. Moreover, we summarize current knowledge about the CXCL12/CXCR4-targeted therapies. Due to the critical roles of this pathway in breast cancer and other malignancies, we believe that audiences in different fields will find this overview helpful. Abstract The CXCL12/CXCR4 signaling pathway has emerged in the recent years as a key player in breast cancer tumorigenesis. This pathway controls many aspects of breast cancer development including cancer cell proliferation, motility and metastasis to all target organs. Moreover, the CXCL12/CXCR4 cascade affects both immune and stromal cells, creating tumor-supporting microenvironment. In this review, we examine state-of-the-art knowledge about detrimental roles of the CXCL12/CXCR4 signaling, discuss its therapeutic potential and suggest further research directions beneficial both for basic research and personalized medicine in breast cancer.
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12
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Yang SJ, Wang DD, Zhou SY, Zhang Q, Wang JY, Zhong SL, Zhang HD, Wang XY, Xia X, Chen W, Yang SY, Hu JH, Zhao JH, Tang JH. Identification of circRNA-miRNA networks for exploring an underlying prognosis strategy for breast cancer. Epigenomics 2020; 12:101-125. [PMID: 31920098 DOI: 10.2217/epi-2019-0058] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Aim: Circular RNAs (circRNAs) still have many potential functions in the process of tumor development that are not completely understood. The study aims to explore novel circRNAs and their mechanisms of action in breast cancer (BCa). Materials & methods: A combination strategy of RNA-sequencing (RNA-seq) technique, quantitative real-time PCR and bioinformatic analysis was employed to identify the potential mechanisms involving differentially expressed circRNAs in the serum exosomes and tissues of BCa patients. Results: The expression levels of hsa-circRNA-0005795 and hsa-circRNA-0088088 were significantly different both in serum exosomes and tissues and might function as competing endogenous RNAs and play vital roles in BCa development. Conclusion: We constructed two circRNA-miRNA networks and provided new insight into the prognosis and therapy of BCa using circRNAs from serum exosomes.
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Affiliation(s)
- Su-Jin Yang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China.,The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China
| | - Dan-Dan Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China
| | - Si-Ying Zhou
- Nanjing University of Chinese Medicine, Nanjing 210028, PR China
| | - Qian Zhang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China.,The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China
| | - Jin-Yan Wang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China.,The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China
| | - Shan-Liang Zhong
- The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, PR China.,Center of Clinical Laboratory, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing 210009, PR China
| | - He-da Zhang
- Department of General Surgery, Southeast University Medical School, Nanjing 210000, PR China
| | - Xing-Yun Wang
- Nanjing Maternal & Child Health Hospital, China Obstetrics & Gynecology Hospital Affiliated to Nanjing Medical University, Nanjing 210004, PR China
| | - Xing Xia
- Nanjing University of Chinese Medicine, Nanjing 210028, PR China
| | - Wei Chen
- The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, PR China.,Department of Head & Neck Surgery, Jiangsu Cancer Hospital & Jiangsu Institute of Cancer Research, Nanjing 210009, PR China
| | - Su-Yu Yang
- Xuanwu Lake Community Health Service Center, Nanjing 210008, PR China
| | - Jia-Hua Hu
- The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, PR China.,Center of Clinical Laboratory, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing 210009, PR China
| | - Jian-Hua Zhao
- The Affiliated Cancer Hospital of Nanjing Medical University, Nanjing, Jiangsu 210000, PR China.,Center of Clinical Laboratory, Nanjing Medical University Affiliated Cancer Hospital, Cancer Institute of Jiangsu Province, Nanjing 210009, PR China
| | - Jin-Hai Tang
- Department of General Surgery, The First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, PR China
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13
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Kozielewicz P, Turku A, Schulte G. Molecular Pharmacology of Class F Receptor Activation. Mol Pharmacol 2019; 97:62-71. [PMID: 31591260 DOI: 10.1124/mol.119.117986] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Accepted: 09/25/2019] [Indexed: 12/29/2022] Open
Abstract
The class Frizzled (FZD) or class F of G protein-coupled receptors consists of 10 FZD paralogues and Smoothened (SMO). FZDs coordinate wingless/Int-1 signaling and SMO mediates Hedgehog signaling. Class F receptor signaling is intrinsically important for embryonic development and its dysregulation leads to diseases, including diverse forms of tumors. With regard to the importance of class F signaling in human disease, these receptors provide an attractive target for therapeutics, exemplified by the use of SMO antagonists for the treatment of basal cell carcinoma. Here, we review recent structural insights in combination with a more detailed functional understanding of class F receptor activation, G protein coupling, conformation-based functional selectivity, and mechanistic details of activating cancer mutations, which will lay the basis for further development of class F-targeting small molecules for human therapy. SIGNIFICANCE STATEMENT: Stimulated by recent insights into the activation mechanisms of class F receptors from structural and functional analysis of Frizzled and Smoothened, we aim to summarize what we know about the molecular details of ligand binding, agonist-driven conformational changes, and class F receptor activation. A better understanding of receptor activation mechanisms will allow us to engage in structure- and mechanism-driven drug discovery with the potential to develop more isoform-selective and potentially pathway-selective drugs for human therapy.
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Affiliation(s)
- Pawel Kozielewicz
- Section of Receptor Biology and Signaling, Department Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Ainoleena Turku
- Section of Receptor Biology and Signaling, Department Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Gunnar Schulte
- Section of Receptor Biology and Signaling, Department Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
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14
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Wiedemar N, Zwyer M, Zoltner M, Cal M, Field MC, Mäser P. Expression of a specific variant surface glycoprotein has a major impact on suramin sensitivity and endocytosis in Trypanosoma brucei. FASEB Bioadv 2019; 1:595-608. [PMID: 32123811 PMCID: PMC6996322 DOI: 10.1096/fba.2019-00033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 04/17/2019] [Accepted: 07/25/2019] [Indexed: 11/11/2022] Open
Abstract
Suramin was introduced into the clinic a century ago and is still used to treat the first stage of acute human sleeping sickness. Due to its size and sixfold negative charge, uptake is mediated through endocytosis and the suramin receptor in trypanosomes is thought to be the invariant surface glycoprotein 75 (ISG75). Nevertheless, we recently identified a variant surface glycoprotein (VSGSur) that confers strong in vitro resistance to suramin in a Trypanosoma brucei rhodesiense line. In this study, we introduced VSGSur into the active bloodstream expression site of a T. b. brucei line. This caused suramin resistance and cross resistance to trypan blue. We quantified the endocytosis of different substrates by flow cytometry and showed that the expression of VSGSur strongly impairs the uptake of low-density lipoprotein (LDL) and transferrin, both imported by receptor-mediated endocytosis. However, bulk endocytosis and endocytosis of the trypanolytic factor were not affected, and the VSGSur -expressors did not exhibit a growth phenotype in the absence of suramin. Knockdown of ISG75 was synergistic with VSGSur expression, indicating that these two proteins are mediating distinct suramin resistance pathways. In conclusion, VSGSur causes suramin resistance in T. brucei bloodstream forms by decreasing specific, receptor-mediated endocytosis pathways.
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Affiliation(s)
- Natalie Wiedemar
- Swiss Tropical and Public Health InstituteBaselSwitzerland
- University of BaselBaselSwitzerland
| | - Michaela Zwyer
- Swiss Tropical and Public Health InstituteBaselSwitzerland
- University of BaselBaselSwitzerland
| | - Martin Zoltner
- School of Life SciencesUniversity of DundeeDundeeUnited Kingdom
| | - Monica Cal
- Swiss Tropical and Public Health InstituteBaselSwitzerland
- University of BaselBaselSwitzerland
| | - Mark C. Field
- School of Life SciencesUniversity of DundeeDundeeUnited Kingdom
| | - Pascal Mäser
- Swiss Tropical and Public Health InstituteBaselSwitzerland
- University of BaselBaselSwitzerland
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15
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Paulson CN, John K, Baxley RM, Kurniawan F, Orellana K, Francis R, Sobeck A, Eichman BF, Chazin WJ, Aihara H, Georg GI, Hawkinson JE, Bielinsky AK. The anti-parasitic agent suramin and several of its analogues are inhibitors of the DNA binding protein Mcm10. Open Biol 2019; 9:190117. [PMID: 31409229 PMCID: PMC6731595 DOI: 10.1098/rsob.190117] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Minichromosome maintenance protein 10 (Mcm10) is essential for DNA unwinding by the replisome during S phase. It is emerging as a promising anti-cancer target as MCM10 expression correlates with tumour progression and poor clinical outcomes. Here we used a competition-based fluorescence polarization (FP) high-throughput screening (HTS) strategy to identify compounds that inhibit Mcm10 from binding to DNA. Of the five active compounds identified, only the anti-parasitic agent suramin exhibited a dose-dependent decrease in replication products in an in vitro replication assay. Structure–activity relationship evaluation identified several suramin analogues that inhibited ssDNA binding by the human Mcm10 internal domain and full-length Xenopus Mcm10, including analogues that are selective for Mcm10 over human RPA. Binding of suramin analogues to Mcm10 was confirmed by surface plasmon resonance (SPR). SPR and FP affinity determinations were highly correlated, with a similar rank between affinity and potency for killing colon cancer cells. Suramin analogue NF157 had the highest human Mcm10 binding affinity (FP Ki 170 nM, SPR KD 460 nM) and cell activity (IC50 38 µM). Suramin and its analogues are the first identified inhibitors of Mcm10 and probably block DNA binding by mimicking the DNA sugar phosphate backbone due to their extended, polysulfated anionic structures.
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Affiliation(s)
- Carolyn N Paulson
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery & Development, College of Pharmacy, University of Minnesota, Minneapolis, MN 55414, USA
| | - Kristen John
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery & Development, College of Pharmacy, University of Minnesota, Minneapolis, MN 55414, USA
| | - Ryan M Baxley
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Fredy Kurniawan
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Kayo Orellana
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Rawle Francis
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery & Development, College of Pharmacy, University of Minnesota, Minneapolis, MN 55414, USA
| | - Alexandra Sobeck
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Brandt F Eichman
- Departments of Biological Sciences and Biochemistry, Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA
| | - Walter J Chazin
- Departments of Biochemistry and Chemistry, Center for Structural Biology, Vanderbilt University, Nashville, TN 37240, USA
| | - Hideki Aihara
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
| | - Gunda I Georg
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery & Development, College of Pharmacy, University of Minnesota, Minneapolis, MN 55414, USA
| | - Jon E Hawkinson
- Department of Medicinal Chemistry and Institute for Therapeutics Discovery & Development, College of Pharmacy, University of Minnesota, Minneapolis, MN 55414, USA
| | - Anja-Katrin Bielinsky
- Department of Biochemistry, Molecular Biology and Biophysics, College of Biological Sciences, University of Minnesota, Minneapolis, MN 55455, USA
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16
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Tan S, Li JQ, Cheng H, Li Z, Lan Y, Zhang TT, Yang ZC, Li W, Qi T, Qiu YR, Chen Z, Li L, Liu SW. The anti-parasitic drug suramin potently inhibits formation of seminal amyloid fibrils and their interaction with HIV-1. J Biol Chem 2019; 294:13740-13754. [PMID: 31346035 DOI: 10.1074/jbc.ra118.006797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 07/16/2019] [Indexed: 12/24/2022] Open
Abstract
Seminal amyloid fibrils are made up of naturally occurring peptide fragments and are key targets for the development of combination microbicides or antiviral drugs. Previously, we reported that the polysulfonic compound ADS-J1 is a potential candidate microbicide that not only inhibits HIV-1 entry, but also seminal fibrils. However, the carcinogenic azo moieties in ADS-J1 preclude its clinical application. Here, we screened several ADS-J1-like analogs and found that the antiparasitic drug suramin most potently inhibited seminal amyloid fibrils. Using various biochemical methods, including Congo red staining, CD analysis, transmission EM, viral infection assays, surface plasmon resonance imaging, and molecular dynamics simulations, we investigated suramin's inhibitory effects and its putative mechanism of action. We found that by forming a multivalent interaction, suramin binds to proteolytic peptides and mature fibrils, thereby inhibiting seminal fibril formation and blocking fibril-mediated enhancement of viral infection. Of note, suramin exhibited potent anti-HIV activities, and combining suramin with several antiretroviral drugs produced synergistic effects against HIV-1 in semen. Suramin also displayed a good safety profile for vaginal application. Moreover, suramin inhibited the semen-derived enhancer of viral infection (SEVI)/semen-mediated enhancement of HIV-1 transcytosis through genital epithelial cells and the subsequent infection of target cells. Collectively, suramin has great potential for further development as a combination microbicide to reduce the spread of the AIDS pandemic by targeting both viral and host factors involved in HIV-1 sexual transmission.
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Affiliation(s)
- Suiyi Tan
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Jin-Qing Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Hongyan Cheng
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zhaofeng Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Yan Lan
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Ting-Ting Zhang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Zi-Chao Yang
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Wenjuan Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Tao Qi
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yu-Rong Qiu
- Laboratory Medicine Center, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhipeng Chen
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Lin Li
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Shu-Wen Liu
- Guangdong Provincial Key Laboratory of New Drug Screening, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
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17
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Bowin CF, Inoue A, Schulte G. WNT-3A-induced β-catenin signaling does not require signaling through heterotrimeric G proteins. J Biol Chem 2019; 294:11677-11684. [PMID: 31235524 DOI: 10.1074/jbc.ac119.009412] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/17/2019] [Indexed: 12/19/2022] Open
Abstract
The network of Wingless/Int-1 (WNT)-induced signaling pathways includes β-catenin-dependent and -independent pathways. β-Catenin regulates T cell factor/lymphoid enhancer-binding factor (TCF/LEF)-mediated gene transcription, and in response to WNTs, β-catenin signaling is initiated through engagement of a Frizzled (FZD)/LDL receptor-related protein 5/6 (LRP5/6) receptor complex. FZDs are G protein-coupled receptors, but the question of whether heterotrimeric G proteins are involved in WNT/β-catenin signaling remains unanswered. Here, we investigate whether acute activation of WNT/β-catenin signaling by purified WNT-3A requires functional signaling through heterotrimeric G proteins. Using genome editing, we ablated expression of Gs/Golf/Gq/G11/G12/G13/Gz in HEK293 (ΔG7) cells, leaving the expression of pertussis toxin (PTX)-sensitive Gi/o proteins unchanged, to assess whether WNT-3A activates WNT/β-catenin signaling in WT and ΔG7 cells devoid of functional G protein signaling. We monitored WNT-3A-induced activation by detection of phosphorylation of LDL receptor-related protein 6 (LRP6), electrophoretic mobility shift of the phosphoprotein Dishevelled (DVL), β-catenin stabilization and dephosphorylation, and TCF-dependent transcription. We found that purified, recombinant WNT-3A efficiently induces WNT/β-catenin signaling in ΔG7 cells in both the absence and presence of Gi/o-blocking PTX. Furthermore, cells completely devoid of G protein expression, so called Gα-depleted HEK293 cells, maintain responsiveness to WNT-3A with regard to the hallmarks of WNT/β-catenin signaling. These findings corroborate the concept that heterotrimeric G proteins are not required for this FZD- and DVL-mediated signaling branch. Our observations agree with previous results arguing for FZD conformation-dependent functional selectivity between DVL and heterotrimeric G proteins. In conclusion, WNT/β-catenin signaling through FZDs does not require the involvement of heterotrimeric G proteins.
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Affiliation(s)
- Carl-Fredrik Bowin
- Section for Receptor Biology and Signaling, Department of Physiology and Pharmacology, Karolinska Institutet, Biomedicum (6D), Solnavägen 9, SE-17165 Stockholm, Sweden
| | - Asuka Inoue
- Graduate School of Pharmaceutical Sciences, Tohoku University, Sendai, Miyagi 980-8578, Japan
| | - Gunnar Schulte
- Section for Receptor Biology and Signaling, Department of Physiology and Pharmacology, Karolinska Institutet, Biomedicum (6D), Solnavägen 9, SE-17165 Stockholm, Sweden
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18
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Caengprasath N, Hanyaloglu AC. Hardwiring wire-less networks: spatially encoded GPCR signaling in endocrine systems. Curr Opin Cell Biol 2019; 57:77-82. [PMID: 30682696 DOI: 10.1016/j.ceb.2018.12.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/14/2018] [Indexed: 12/15/2022]
Abstract
The pivotal and diverse roles G protein-coupled receptors (GPCRs) play in physiology are matched by the increasingly complex signal systems they activate. Over the past decade, our models of GPCR signaling systems also include a vital role of location in controlling GPCR signaling, whereby plasma membrane, clathrin-associated structures and a diverse endomembrane network provide highly specialized signal platforms for this superfamily of receptors. The aim of this review is to highlight the recent developments in this fast-evolving field, with particular emphasis on endocrine-relevant GPCRs. We will also highlight studies that address the possibility of therapeutic intervention and how this fundamental cell biology can be translated to physiology/pathophysiology and therapeutic interventions.
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Affiliation(s)
- Natarin Caengprasath
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College, London, UK
| | - Aylin C Hanyaloglu
- Institute of Reproductive and Developmental Biology, Dept. Surgery and Cancer, Imperial College, London, UK.
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19
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A high-throughput assay pipeline for specific targeting of frizzled GPCRs in cancer. Methods Cell Biol 2019; 149:57-75. [DOI: 10.1016/bs.mcb.2018.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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20
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Nicolini A, Ferrari P, Rossi G, Carpi A. Tumour growth and immune evasion as targets for a new strategy in advanced cancer. Endocr Relat Cancer 2018; 25:R577–R604. [PMID: 30306784 DOI: 10.1530/erc-18-0142] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
It has become clearer that advanced cancer, especially advanced breast cancer, is an entirely displayed pathological system that is much more complex than previously considered. However, the direct relationship between tumour growth and immune evasion can represent a general rule governing the pathological cancer system from the initial cancer cells to when the system is entirely displayed. Accordingly, a refined pathobiological model and a novel therapeutic strategy are proposed. The novel therapeutic strategy is based on therapeutically induced conditions (undetectable tumour burden and/or a prolonged tumour ‘resting state’), which enable an efficacious immune response in advanced breast and other types of solid cancers.
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Affiliation(s)
- Andrea Nicolini
- Department of Oncology, Transplantations and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Paola Ferrari
- Department of Oncology, Transplantations and New Technologies in Medicine, University of Pisa, Pisa, Italy
| | - Giuseppe Rossi
- Unit of Epidemiology and Biostatistics, Institute of Clinical Physiology, National Council of Research, Pisa, Italy
| | - Angelo Carpi
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
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21
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Wu N, Zhang J, Zhao J, Mu K, Zhang J, Jin Z, Yu J, Liu J. Precision medicine based on tumorigenic signaling pathways for triple-negative breast cancer. Oncol Lett 2018; 16:4984-4996. [PMID: 30250564 PMCID: PMC6144355 DOI: 10.3892/ol.2018.9290] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 01/22/2018] [Indexed: 12/20/2022] Open
Abstract
As a clinically heterogeneous subtype of breast cancer, triple-negative breast cancer (TNBC) is associated with a poor clinical outcome and a high relapse rate. Conventional chemotherapy and radiotherapy are effective treatments for patients with TNBC. However, the prognosis of TNBC remains unsatisfactory. Therefore, a large volume of research has explored the molecular markers and oncogenic signaling pathways associated with TNBC, including the cell cycle, DNA damage response and androgen receptor (AR) signaling pathways, to identify more efficient targeted therapies. However, whether these predicted pathways are effective targets has yet to be confirmed. In the present review, potentially carcinogenic signaling pathways in TNBCs from previous reports were considered, and ultimately five tumorigenic signaling pathways were selected, specifically receptor tyrosine kinases and downstream signaling pathways, the epithelial-to-mesenchymal transition and associated pathways, the immunoregulatory tumor microenvironment, DNA damage repair pathways, and AR and coordinating pathways. The conclusions of the preclinical and clinical trials of each pathway were then consolidated. Although a number of signaling pathways in TNBC have been considered in preclinical and clinical trials, the aforementioned pathways account for the majority of the malignant behaviors of TNBC. Identifying the alterations to different carcinogenic signaling pathways and their association with the heterogeneity of TNBC may facilitate the development of optimal precision medical approaches for patients with TNBC, potentially improving the efficiency of anticancer therapy.
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Affiliation(s)
- Nan Wu
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Jinghua Zhang
- Department of Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China
| | - Jing Zhao
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Kun Mu
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Jun Zhang
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Zhao Jin
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Jinpu Yu
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Biotherapy Center, Key Laboratory of Cancer Immunology and Biotherapy, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
| | - Juntian Liu
- Department of Breast Surgery, North China Petroleum Hospital, Renqiu, Hebei 062552, P.R. China.,Key Laboratory of Breast Cancer Prevention and Therapy, Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, National Clinical Research Center of Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin 300060, P.R. China
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22
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Koval A, Pieme CA, Queiroz EF, Ragusa S, Ahmed K, Blagodatski A, Wolfender JL, Petrova TV, Katanaev VL. Tannins from Syzygium guineense suppress Wnt signaling and proliferation of Wnt-dependent tumors through a direct effect on secreted Wnts. Cancer Lett 2018; 435:110-120. [PMID: 30098400 DOI: 10.1016/j.canlet.2018.08.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 06/12/2018] [Accepted: 07/31/2018] [Indexed: 02/07/2023]
Abstract
Triple-negative breast cancer (TNBC) and colon cancer (CC) are two stigmatic examples of poorly treatable tumors, whose progression critically depends upon hyperactivation of the Wnt signaling. Development of specific anti-Wnt inhibitors is required to develop drugs against these and other Wnt-dependent cancers. Natural products, especially plants, have been used for the treatment of various diseases from ancient times. We examined extracts from several indigenous Cameroonian herbs and tested their effects on proliferation and Wnt signaling in TNBC and CC cells. Extracts from "fruit rouge", Syzygium guineense Wall. (Myrtaceae), demonstrated a strong activity against these cancer cells, as well as CC organoids. We found TNBC cells to significantly upregulate expression of Wnt3a, and the effects of S. guineense extracts on TNBC cell proliferation correlated with inhibition of the Wnt3a-induced β-catenin stabilization and transcriptional response. HPLC analysis revealed that the active components belong to tannins. We found a direct destabilizing effect of S. guineense extract on Wnt3a and other Wnt proteins, identifying a novel mechanism of action of tannins on the Wnt signaling pathway and cancer cell proliferation. Being edible, this African plant may have an important cancer-preventive nutritional value.
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Affiliation(s)
- Alexey Koval
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland
| | - Constant A Pieme
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland; Department of Biochemistry and Physiological Sciences, University of Yaounde I, Cameroon
| | | | - Simone Ragusa
- (d)Department of Oncology, Ludwig Cancer Research, Lausanne Branch, and Institute of Pathology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Epalinges, Switzerland
| | - Kamal Ahmed
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland
| | - Artem Blagodatski
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland; School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia
| | | | - Tatiana V Petrova
- (d)Department of Oncology, Ludwig Cancer Research, Lausanne Branch, and Institute of Pathology, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Epalinges, Switzerland
| | - Vladimir L Katanaev
- Department of Pharmacology and Toxicology, University of Lausanne, Switzerland; School of Biomedicine, Far Eastern Federal University, Vladivostok, Russia.
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23
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Schulte G, Wright SC. Frizzleds as GPCRs - More Conventional Than We Thought! Trends Pharmacol Sci 2018; 39:828-842. [PMID: 30049420 DOI: 10.1016/j.tips.2018.07.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 06/27/2018] [Accepted: 07/02/2018] [Indexed: 01/14/2023]
Abstract
For more than 30 years, WNT/β-catenin and planar cell polarity signaling has formed the basis for what we understand to be the primary output of the interaction between WNTs and their cognate receptors known as Frizzleds (FZDs). In the shadow of these pathways, evidence for the involvement of heterotrimeric G proteins in WNT signaling has grown substantially over the years - redefining the complexity of the WNT signaling network. Moreover, the distinct characteristics of FZD paralogs are becoming better understood, and we can now apply concepts valid for classical GPCRs to grasp FZDs as molecular machines at the interface of ligand binding and intracellular effects. This review discusses recent developments in the field of WNT/FZD signaling in the context of GPCR pharmacology, and identifies remaining mysteries with an emphasis on structural and kinetic components that support this dogma shift.
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Affiliation(s)
- Gunnar Schulte
- Section of Receptor Biology and Signaling, Department of Physiology and Pharmacology, Biomedicum 6D, Tomtebodavägen 16, Karolinska Institutet, S-171 65 Stockholm, Sweden.
| | - Shane C Wright
- Section of Receptor Biology and Signaling, Department of Physiology and Pharmacology, Biomedicum 6D, Tomtebodavägen 16, Karolinska Institutet, S-171 65 Stockholm, Sweden
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24
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Du Z, Song X, Yan F, Wang J, Zhao Y, Liu S. Genome-wide transcriptional analysis of BRD4-regulated genes and pathways in human glioma U251 cells. Int J Oncol 2018; 52:1415-1426. [PMID: 29568956 PMCID: PMC5873870 DOI: 10.3892/ijo.2018.4324] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 02/14/2018] [Indexed: 12/30/2022] Open
Abstract
Bromodomain containing 4 (BRD4), a member of the bromodomain and extra-terminal family, has become a promising drug target for numerous types of cancer. BRD4 has been reported to be deregulated in gliomas; however, the precise molecular pathways regulated by BRD4 remained elusive. In the present study, BRD4 expression was silenced in the glioma cell line U251 and the results demonstrated that BRD4 knockdown attenuated cell proliferation and promoted cell apoptosis. A genome-wide analysis of BRD4-regulated transcripts in U251 cells was performed using microarray to reveal the possible molecular mechanism. A total of 3,529 differentially expressed genes were identified; 1,648 of these genes were upregulated and 1,881 were downregulated. The results of the gene ontology analysis revealed that these genes were mainly involved in membrane organization, mitotic cell cycle, cell division and DNA replication. Pathway analysis revealed that the pathways altered following BRD4 knockdown included multiple cellular processes, such as cell cycle and apoptosis. Candidate genes were identified through global signal transduction network analysis and were validated using reverse transcription-quantitative polymerase chain reaction and western blot analyses. The results demonstrated that BRD4 knockdown decreased the expression of KRAS proto-oncogene GTPase (KRAS). Downregulated KRAS expression in U251 cells restrained cell proliferation and promoted cell apoptosis, suggesting that the effect of BRD4 on glioma cells might occur through the Ras pathway. In conclusion, the present results confirmed the role of BRD4 in glioma and provided information for further exploration of the molecular mechanism of BRD4 in glioma development and progression.
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Affiliation(s)
- Zhanhui Du
- The Key Laboratory of Cardiovascular Remodelling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xiuxiang Song
- Department of Anaesthesiology, The People's Hospital of Jimo City, Qingdao, Shandong 266200, P.R. China
| | - Fangfang Yan
- Department of Traditional Chinese Medicine, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Jingjing Wang
- Institute of Pathology and Pathophysiology, Shandong University School of Medicine, Jinan, Shandong 250012, P.R. China
| | - Yuxia Zhao
- Department of Traditional Chinese Medicine, Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
| | - Shangming Liu
- The Key Laboratory of Cardiovascular Remodelling and Function Research, Chinese Ministry of Education and Chinese Ministry of Public Health Qilu Hospital, Shandong University, Jinan, Shandong 250012, P.R. China
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25
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Brunt L, Scholpp S. The function of endocytosis in Wnt signaling. Cell Mol Life Sci 2018; 75:785-795. [PMID: 28913633 PMCID: PMC5809524 DOI: 10.1007/s00018-017-2654-2] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 08/17/2017] [Accepted: 09/06/2017] [Indexed: 10/31/2022]
Abstract
Wnt growth factors regulate one of the most important signaling networks during development, tissue homeostasis and disease. Despite the biological importance of Wnt signaling, the mechanism of endocytosis during this process is ill described. Wnt molecules can act as paracrine signals, which are secreted from the producing cells and transported through neighboring tissue to activate signaling in target cells. Endocytosis of the ligand is important at several stages of action: One central function of endocytic trafficking in the Wnt pathway occurs in the source cell. Furthermore, the β-catenin-dependent Wnt ligands require endocytosis for signal activation and to regulate gene transcription in the responding cells. Alternatively, Wnt/β-catenin-independent signaling regulates endocytosis of cell adherence plaques to control cell migration. In this comparative review, we elucidate these three fundamental interconnected functions, which together regulate cellular fate and cellular behavior. Based on established hypotheses and recent findings, we develop a revised picture for the complex function of endocytosis in the Wnt signaling network.
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Affiliation(s)
- Lucy Brunt
- Living Systems Institute, School of Biosciences, College of Life and Environmental Science, University of Exeter, Exeter, EX4 4QD, UK
| | - Steffen Scholpp
- Living Systems Institute, School of Biosciences, College of Life and Environmental Science, University of Exeter, Exeter, EX4 4QD, UK.
- Institute of Toxicology and Genetics (ITG), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany.
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26
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Riccio G, Bottone S, La Regina G, Badolati N, Passacantilli S, Rossi GB, Accardo A, Dentice M, Silvestri R, Novellino E, Stornaiuolo M. A Negative Allosteric Modulator of WNT Receptor Frizzled 4 Switches into an Allosteric Agonist. Biochemistry 2018; 57:839-851. [DOI: 10.1021/acs.biochem.7b01087] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Gennaro Riccio
- Department
of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Sara Bottone
- Department
of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Giuseppe La Regina
- Istituto
Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie
del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Nadia Badolati
- Department
of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Sara Passacantilli
- Istituto
Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie
del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Giovanni Battista Rossi
- Gastroenterology
and gastrointestinal endoscopy unit, Istituto Nazionale Tumori-IRCCS-Fondazione G. Pascale, Naples, Italy
| | - Antonella Accardo
- Department
of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Monica Dentice
- Department
of Clinical Medicine and Surgery, University of Naples Federico II, Naples, Italy
| | - Romano Silvestri
- Istituto
Pasteur-Fondazione Cenci Bolognetti, Dipartimento di Chimica e Tecnologie
del Farmaco, Sapienza University of Rome, Rome, Italy
| | - Ettore Novellino
- Department
of Pharmacy, University of Naples Federico II, Naples, Italy
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27
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Guns LA, Monteagudo S, Kvasnytsia M, Kerckhofs G, Vandooren J, Opdenakker G, Lories RJ, Cailotto F. Suramin increases cartilage proteoglycan accumulation in vitro and protects against joint damage triggered by papain injection in mouse knees in vivo. RMD Open 2017; 3:e000604. [PMID: 29299344 PMCID: PMC5730881 DOI: 10.1136/rmdopen-2017-000604] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Accepted: 11/06/2017] [Indexed: 01/12/2023] Open
Abstract
Objectives Suramin is an old drug used for the treatment of African sleeping sickness. We investigated therapeutic repositioning of suramin to protect against cartilage damage, as suramin may interact with tissue inhibitor of metalloproteinase-3 (TIMP3). Methods In vitro extracellular matrix (ECM) accumulation and turnover in the presence or absence of suramin were studied in the ATDC5 micromass model of chondrogenesis and in pellet cultures of human articular chondrocytes from osteoarthritis and control patients, by gene expression, protein analysis, colorimetric staining, immunoprecipitation, fluorimetric analysis and immunohistochemistry. To study suramin in vivo, the drug was injected intra-articularly in the papain model of joint damage. Disease severity was analysed by histology, immunohistochemistry and contrast-enhanced nanofocus CT. Results In ATDC5 micromasses, suramin increased TIMP3 levels and decreased the activity of matrix metalloproteinases (MMPs) and aggrecanases. Suramin treatment resulted in increased glycosaminoglycans. This effect on the ECM was blocked by an anti-TIMP3 antibody. Direct interaction between suramin and endogenous TIMP3 was demonstrated in immunoprecipitates. Mice treated intra-articularly with suramin injections showed reduced cartilage damage compared with controls, with increased TIMP3 and decreased MMP and aggrecanase activity. Translational validation in human chondrocytes confirmed increased TIMP3 function and reduced cartilage breakdown after suramin treatment. Conclusion Suramin prevented loss of articular cartilage in a mouse model of cartilage damage. The effects appear to be mediated by a functional increase of TIMP3 and a subsequent decrease in the activity of catabolic enzymes. Thus, suramin repositioning could be considered to prevent progressive cartilage damage and avoid evolution toward osteoarthritis.
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Affiliation(s)
- Laura-An Guns
- Department of Development and Regeneration, Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Leuven, Belgium
| | - Silvia Monteagudo
- Department of Development and Regeneration, Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Leuven, Belgium
| | - Maryna Kvasnytsia
- Tissue Engineering Unit, Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, Leuven, Belgium
| | - Greet Kerckhofs
- Tissue Engineering Unit, Department of Development and Regeneration, Skeletal Biology and Engineering Research Center, Leuven, Belgium
| | - Jennifer Vandooren
- Department of Microbiology and Immunology, Laboratory of Immunobiology (Rega Institute), Leuven, Belgium
| | - Ghislain Opdenakker
- Department of Microbiology and Immunology, Laboratory of Immunobiology (Rega Institute), Leuven, Belgium
| | - Rik J Lories
- Department of Development and Regeneration, Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Leuven, Belgium.,Division of Rheumatology, University Hospitals Leuven, Leuven, Belgium
| | - Frederic Cailotto
- Department of Development and Regeneration, Laboratory of Tissue Homeostasis and Disease, Skeletal Biology and Engineering Research Center, Leuven, Belgium.,CNRS - Université de Lorraine, UMR7365, Ingénierie Moléculaire et Physiopathologie Articulaire (IMoPA), Biopôle de l'Université de Lorraine, Campus Biologie-Santé, Vandoeuvre-Lès-Nancy, France
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28
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High-throughput targeted screening in triple-negative breast cancer cells identifies Wnt-inhibiting activities in Pacific brittle stars. Sci Rep 2017; 7:11964. [PMID: 28931883 PMCID: PMC5607299 DOI: 10.1038/s41598-017-12232-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 09/06/2017] [Indexed: 02/06/2023] Open
Abstract
Pro-proliferative oncogenic signaling is one of the hallmarks of cancer. Specific targeting of such signaling pathways is one of the main approaches to modern anti-cancer drug discovery, as opposed to more traditional search for general cytotoxic agents. Natural products, especially from marine sources, represent a largely untapped source of chemical diversity, which so far have mostly been screened for cytotoxicity. Here we present a pioneering pipeline of high-throughput screening of marine-based activities targeted against the Wnt signaling pathway, which is one of the key factors in oncogenic transformation, growth and metastasis in different cancers, including the devastating triple-negative breast cancer (TNBC) currently lacking any targeted therapies. This pipeline consisted of collection and characterization of numerous invertebrates during the SokhoBio expedition to the Kuril Basin in North Pacific, preparation of extracts from these specimen, and their screening in dedicated assays monitoring Wnt signaling in TNBC cells. This approach yielded a number of promising hits, including highly specific anti-Wnt activities targeting multiple levels within the Wnt pathway from Ophiura irrorata and other Pacific brittle stars.
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29
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Berg A, Berg T. A small-molecule screen identifies the antitrypanosomal agent suramin and analogues NF023 and NF449 as inhibitors of STAT5a/b. Bioorg Med Chem Lett 2017. [DOI: 10.1016/j.bmcl.2017.06.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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30
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A Second WNT for Old Drugs: Drug Repositioning against WNT-Dependent Cancers. Cancers (Basel) 2016; 8:cancers8070066. [PMID: 27429001 PMCID: PMC4963808 DOI: 10.3390/cancers8070066] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Revised: 06/24/2016] [Accepted: 07/07/2016] [Indexed: 12/21/2022] Open
Abstract
Aberrant WNT signaling underlies cancerous transformation and growth in many tissues, such as the colon, breast, liver, and others. Downregulation of the WNT pathway is a desired mode of development of targeted therapies against these cancers. Despite the urgent need, no WNT signaling-directed drugs currently exist, and only very few candidates have reached early phase clinical trials. Among different strategies to develop WNT-targeting anti-cancer therapies, repositioning of existing drugs previously approved for other diseases is a promising approach. Nonsteroidal anti-inflammatory drugs like aspirin, the anti-leprotic clofazimine, and the anti-trypanosomal suramin are among examples of drugs having recently revealed WNT-targeting activities. In total, 16 human-use drug compounds have been found to be working through the WNT pathway and show promise for their prospective repositioning against various cancers. Advances, hurdles, and prospects of developing these molecules as potential drugs against WNT-dependent cancers, as well as approaches for discovering new ones for repositioning, are the foci of the current review.
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Gill RM, Mehra V, Milford E, Dhoot GK. Short SULF1/SULF2 splice variants predominate in mammary tumours with a potential to facilitate receptor tyrosine kinase-mediated cell signalling. Histochem Cell Biol 2016; 146:431-44. [PMID: 27294358 DOI: 10.1007/s00418-016-1454-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/24/2016] [Indexed: 11/24/2022]
Abstract
The relative roles of SULF1 and SULF2 enzymes in tumour growth are controversial, but short SULF1/SULF2 splice variants predominate in human mammary tumours despite their non-detectable levels in normal mammary tissue. Compared with the normal, the level of receptor tyrosine kinase (RTK) activity was markedly increased in triple-positive mammary tumours during later stages of tumour progression showing increased p-EGFR, p-FGFR1 and p-cMet activity in triple-positive but not in triple-negative tumours. The abundance of catalytically inactive short SULF1/SULF2 variants permits high levels of HS sulphation and thus growth driving RTK cell signalling in primary mammary tumours. Also observed in this study, however, was increased N-sulphation detected by antibody 10E4 indicating that not only 6-O sulphation but also N-sulphation may contribute to increased RTK cell signalling in mammary tumours. The levels of such increases in not only SULF1/SULF2 but also in pEGFR, pFGFR1, p-cMet and Smad1/5/8 signalling were further enhanced following lymph node metastasis. The over-expression of Sulf1 and Sulf2 variants in mammary tumour-derived MDA-MB231 and MCF7 cell lines by transfection further confirms Sulf1-/Sulf2-mediated differential modulation of growth. The short variants of both Sulf1 and Sulf2 promoted FGF2-induced MDA-MB231 and MCF7 in vitro growth while full-length Sulf1 inhibited growth supporting in vivo mammary tumour cell signalling patterns of growth. Since a number of mammary tumours become drug resistant to hormonal therapy, Sulf1/Sulf2 inhibition could be an alternative therapeutic approach to target such tumours by down-regulating RTK-mediated cell signalling.
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Affiliation(s)
- Roop Ms Gill
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, NW1 OTU, UK
| | - Vedika Mehra
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, NW1 OTU, UK
| | - Emma Milford
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, NW1 OTU, UK
| | - Gurtej K Dhoot
- Department of Comparative Biomedical Sciences, The Royal Veterinary College, University of London, London, NW1 OTU, UK.
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