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Govindarajan M. Amphiphilic glycoconjugates as potential anti-cancer chemotherapeutics. Eur J Med Chem 2017; 143:1208-1253. [PMID: 29126728 DOI: 10.1016/j.ejmech.2017.10.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 09/14/2017] [Accepted: 10/08/2017] [Indexed: 12/13/2022]
Abstract
Amphiphilicity is one of the desirable features in the process of drug development which improves the biological as well as the pharmacokinetics profile of bioactive molecule. Carbohydrate moieties present in anti-cancer natural products and synthetic molecules influence the amphiphilicity and hence their bioactivity. This review focuses on natural and synthetic amphiphilic anti-cancer glycoconjugates. Different classes of molecules with varying degree of amphiphilicity are covered with discussions on their structure-activity relationship and mechanism of action.
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Affiliation(s)
- Mugunthan Govindarajan
- Emory Institute for Drug Development, Emory University, 954 Gatewood Road, Atlanta, GA 30329, United States.
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2
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Ji S, Shen W, Chen L, Zhang Y, Wu X. Synthesis and properties of alkoxyethyl 2-acetamido-2-deoxy- α - D -glucopyranoside. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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3
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Nieto-Sampedro M, Valle-Argos B, Gómez-Nicola D, Fernández-Mayoralas A, Nieto-Díaz M. Inhibitors of Glioma Growth that Reveal the Tumour to the Immune System. Clin Med Insights Oncol 2011; 5:265-314. [PMID: 22084619 PMCID: PMC3201112 DOI: 10.4137/cmo.s7685] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Treated glioblastoma patients survive from 6 to 14 months. In the first part of this review, we describe glioma origins, cancer stem cells and the genomic alterations that generate dysregulated cell division, with enhanced proliferation and diverse response to radiation and chemotherapy. We review the pathways that mediate tumour cell proliferation, neo-angiogenesis, tumor cell invasion, as well as necrotic and apoptotic cell death. Then, we examine the ability of gliomas to evade and suppress the host immune system, exhibited at the levels of antigen recognition and immune activation, limiting the effective signaling between glioma and host immune cells.The second part of the review presents current therapies and their drawbacks. This is followed by a summary of the work of our laboratory during the past 20 years, on oligosaccharide and glycosphingolipid inhibitors of astroblast and astrocytoma division. Neurostatins, the O-acetylated forms of gangliosides GD1b and GT1b naturally present in mammalian brain, are cytostatic for normal astroblasts, but cytotoxic for rat C6 glioma cells and human astrocytoma grades III and IV, with ID50 values ranging from 200 to 450 nM. The inhibitors do not affect neurons or fibroblasts up to concentrations of 4 μM or higher.At least four different neurostatin-activated, cell-mediated antitumoral processes, lead to tumor destruction: (i) inhibition of tumor neovascularization; (ii) activation of microglia; (iii) activation of natural killer (NK) cells; (iv) activation of cytotoxic lymphocytes (CTL). The enhanced antigenicity of neurostatin-treated glioma cells, could be related to their increased expression of connexin 43. Because neurostatins and their analogues show specific activity and no toxicity for normal cells, a clinical trial would be the logical next step.
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Affiliation(s)
- Manuel Nieto-Sampedro
- Instituto Cajal de Neurobiología, CSIC, 28002 Madrid, Spain
- Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain
| | - Beatriz Valle-Argos
- Instituto Cajal de Neurobiología, CSIC, 28002 Madrid, Spain
- Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain
| | - Diego Gómez-Nicola
- Instituto Cajal de Neurobiología, CSIC, 28002 Madrid, Spain
- Hospital Nacional de Parapléjicos, SESCAM, 45071 Toledo, Spain
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4
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García-Alvarez I, Garrido L, Doncel-Pérez E, Nieto-Sampedro M, Fernández-Mayoralas A. Detection of metabolite changes in C6 glioma cells cultured with antimitotic oleyl glycoside by 1H MAS NMR. J Med Chem 2010; 52:1263-7. [PMID: 19199478 DOI: 10.1021/jm8012807] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthetic glycoside, oleyl N-acetyl-alpha-D-glucosaminide (1), was previously shown to exhibit antimitotic activity on rat (C6) and human (U-373) glioma lines. To obtain information about its mechanism of action, metabolite changes in C6 glioma cells were analyzed after treatment with 1 using high-resolution magic angle spinning (1)H NMR. Compound 1 caused either a decrease or an increase in the intensity of the signal assigned to coenzyme A (CoA) metabolites depending on the concentration used. The data obtained from the (1)H NMR spectra of cells cultured with 1, combined with those obtained after treatment with oleic acid (an inhibitor of acetyl-CoA carboxylase) and phenyl butyrate (a known antineoplastic agent), suggest that 1 may be altering the metabolism of fatty acids and induce apoptosis of C6 glioma cells. These results point to NMR spectroscopy as an efficient technique for monitoring the response of the cells to therapeutic agents.
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5
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Moskal JR, Kroes RA, Dawson G. The glycobiology of brain tumors: disease relevance and therapeutic potential. Expert Rev Neurother 2009; 9:1529-45. [PMID: 19831842 DOI: 10.1586/ern.09.105] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The oligosaccharides that decorate cell surface glycoconjugates play important roles in intercellular recognition and cell-extracellular matrix interactions, and thus the regulation of cellular migration, metastasis and invasivity. Virtually all tumor cells display aberrant cell-surface glycosylation patterns brought about by alterations in their biosynthetic machinery. This holds true for highly invasive, malignant brain tumors as well as tumor cells that metastasize to the brain. The field of glycobiology is well established with essentially all of the biochemical pathways for oligosaccharide metabolism characterized and all of the 'glycogenes' involved in these pathways cloned. Yet there has been a paucity of progress toward the development of therapeutics. However, recent studies aimed at controlled glycosylation of therapeutic antibodies and mucins with anticancer vaccine potential, the emergence of new and highly sensitive tools for the identification of tumor-associated biomarkers and the manipulation of the expression of glycogenes that inhibit brain tumor invasivity have emerged. The opportunity now exists to answer questions as to how glycogenes are regulated at the genomic and transcriptomic level and how altered glycogene expression patterns lead to altered cell surface glycoconjugates. These studies should lead to the development of ways to directly regulate tumor cell glycogene expression, which should have significant therapeutic potential.
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Affiliation(s)
- Joseph R Moskal
- Department of Biomedical Engineering, Northwestern University, Evanston, IL 60201, USA.
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Chen W, Meng F, Li F, Ji SJ, Zhong Z. pH-Responsive Biodegradable Micelles Based on Acid-Labile Polycarbonate Hydrophobe: Synthesis and Triggered Drug Release. Biomacromolecules 2009; 10:1727-35. [DOI: 10.1021/bm900074d] [Citation(s) in RCA: 199] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wei Chen
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Organic Chemistry, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Fenghua Meng
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Organic Chemistry, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Feng Li
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Organic Chemistry, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Shun-Jun Ji
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Organic Chemistry, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
| | - Zhiyuan Zhong
- Biomedical Polymers Laboratory and Jiangsu Key Laboratory of Organic Chemistry, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s Republic of China
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Ortega-Muñoz M, Perez-Balderas F, Morales-Sanfrutos J, Hernandez-Mateo F, Isac-García J, Santoyo-Gonzalez F. Click Multivalent Heterogeneous Neoglycoconjugates - Modular Synthesis and Evaluation of Their Binding Affinities. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801169] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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8
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López Donaire M, Parra-Cáceres J, Vázquez-Lasa B, García-Álvarez I, Fernández-Mayoralas A, López-Bravo A, San Román J. Polymeric drugs based on bioactive glycosides for the treatment of brain tumours. Biomaterials 2009; 30:1613-26. [DOI: 10.1016/j.biomaterials.2008.12.006] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Accepted: 12/01/2008] [Indexed: 02/05/2023]
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9
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Smith A, Nobmann P, Henehan G, Bourke P, Dunne J. Synthesis and antimicrobial evaluation of carbohydrate and polyhydroxylated non-carbohydrate fatty acid ester and ether derivatives. Carbohydr Res 2008; 343:2557-66. [DOI: 10.1016/j.carres.2008.07.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2008] [Revised: 07/14/2008] [Accepted: 07/21/2008] [Indexed: 10/21/2022]
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Completo GC, Lowary TL. Synthesis of Galactofuranose-Containing Acceptor Substrates for Mycobacterial Galactofuranosyltransferases. J Org Chem 2008; 73:4513-25. [DOI: 10.1021/jo800457j] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gladys C. Completo
- Alberta Ingenuity Centre for Carbohydrate Science and Department of Chemistry, The University of Alberta, Gunning-Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2 Canada
| | - Todd L. Lowary
- Alberta Ingenuity Centre for Carbohydrate Science and Department of Chemistry, The University of Alberta, Gunning-Lemieux Chemistry Centre, Edmonton, Alberta, T6G 2G2 Canada
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11
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García-Alvarez I, Corrales G, Doncel-Pérez E, Muñoz A, Nieto-Sampedro M, Fernández-Mayoralas A. Design and synthesis of glycoside inhibitors of glioma and melanoma growth. J Med Chem 2007; 50:364-73. [PMID: 17228879 DOI: 10.1021/jm0611556] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An N-acetylglucosaminide derivative with a pentaerythritol substituent at position C-6 was previously synthesized and shown to inhibit neural tumor growth. Now, we report the preparation of a series of new synthetic compounds introducing systematic changes in the nature, polarity, and size of the sugar substituents. The antimitotic activity of the new compounds was tested on cultured rat (C6) and human (U-373) glioma lines and on a human melanoma line (A-375). The antimitotic and antitumoral activity of the new compounds on glioma cell lines increased up to 2 orders of magnitude with respect to the parent compound or was abolished, permitting a detailed structure-function analysis of the new antitumorals. One of the glycosides inhibited melanoma division with an ID50 below the micromolar range.
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Affiliation(s)
- Isabel García-Alvarez
- Instituto de Química OrgAnica General, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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12
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Dagron F, Lubineau A. Syntheses of Heterobifunctional Candidate Ligands of P‐Selectin Containing Both Sulfated Lewis X Trisaccharide and Various Sulfated Peptides. J Carbohydr Chem 2007. [DOI: 10.1081/car-120026453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Franck Dagron
- a Laboratoire de Chimie Organique Multifonctionnelle, UMR CNRS 8614 , Institut de Chimie Moléculaire d'Orsay , Université Paris‐Sud , Bât. 420, 91405 , Orsay Cedex , France
| | - André Lubineau
- a Laboratoire de Chimie Organique Multifonctionnelle, UMR CNRS 8614 , Institut de Chimie Moléculaire d'Orsay , Université Paris‐Sud , Bât. 420, 91405 , Orsay Cedex , France
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Jiang ZX, Yu YB. The synthesis of a geminally perfluoro-tert-butylated beta-amino acid and its protected forms as a potential pharmacokinetic modulator and reporter for peptide-based pharmaceuticals. J Org Chem 2007; 72:1464-7. [PMID: 17243713 PMCID: PMC2597546 DOI: 10.1021/jo0616308] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To modulate and report the pharmacokinetics of peptide-based pharmaceuticals, a novel geminally perfluoro-tert-butylated beta-amino acid (betaFa) and its Fmoc- and Boc-protected forms were designed and synthesized. betaFa was incorporated into a model tripeptide via standard solid-phase chemistry. Both the amino acid (free and protected) and the tripeptide show a sharp singlet 19F NMR signal. Reversed-phase chromatography and 1-octanol/water partition measurements demonstrate that betaFa is extremely hydrophobic.
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Affiliation(s)
- Zhong-Xing Jiang
- Department of Pharmaceutics and Pharmaceutical Chemistry, College of Pharmacy, University of Utah, Salt Lake City, Utah 84112, USA
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Ingrassia L, Nshimyumukiza P, Dewelle J, Lefranc F, Wlodarczak L, Thomas S, Dielie G, Chiron C, Zedde C, Tisnès P, van Soest R, Braekman JC, Darro F, Kiss R. A Lactosylated Steroid Contributes in Vivo Therapeutic Benefits in Experimental Models of Mouse Lymphoma and Human Glioblastoma. J Med Chem 2006; 49:1800-7. [PMID: 16509595 DOI: 10.1021/jm050971v] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various mono- and disaccharides were grafted onto a steroid backbone. Whereas in vitro these glycosylated steroids had no cytotoxic effects on six different human cancer cell lines, several of the glycosylated steroids under study did significantly modify the levels of in vitro migration of the human U373 glioblastoma, the A549 non-small-cell-lung cancer (NSCLC), and the PC-3 prostate cancer cells, with more pronounced effects in the case of a monosubstituted beta-L-fucopyranosyl-steroid (19), a monosubstituted beta-D-isomaltosyl-steroid (22), and a monosubstituted beta-D-lactosyl-steroid (24). These three compounds significantly increased the survival of conventional mice grafted subcutaneously with the P388 lymphoma, a lymphoma that metastasizes toward the liver. In vivo, the monosubstituted beta-D-lactosyl-steroid (24) also increased the antitumor effectiveness of cisplatin, a cytotoxic pro-apoptotic drug, in the case of the P388 lymphoma model. This compound also increased the survival of immunodeficient mice into whose brains human U373 glioblastoma cells had been orthotopically grafted.
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Al-Mughaid H, Grindley TB. Synthesis of a Nonavalent Mannoside Glycodendrimer Based on Pentaerythritol. J Org Chem 2006; 71:1390-8. [PMID: 16468786 DOI: 10.1021/jo052045u] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A nonavalent glycodendrimer bearing terminal alpha-d-mannopyranoside units has been synthesized with a convergent approach. Terminal trivalent mannoside dendrons bearing p-halophenyl ethers were prepared by glycosylation of pentaerythritol derivatives having three 2-hydroxyethyl ether substituents. Two efficient routes were developed for the synthesis of the pentaerythritol-based core (17), which has three terminal propargyl ethers. Conditions were found under which the triple Sonogashira coupling reaction of the dendron and the tri-O-propargyl ether (17) proceeded efficiently. The product was deprotected and it and precursors were fully characterized by NMR spectroscopy and FT-ICR mass spectrometry.
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Affiliation(s)
- Hussein Al-Mughaid
- Department of Chemistry, Dalhousie University, Halifax, Nova Scotia, B3H 4J3 Canada
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16
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Lefranc F, James S, Camby I, Gaussin JF, Darro F, Brotchi J, Gabius J, Kiss R. Combined cimetidine and temozolomide, compared with temozolomide alone: significant increases in survival in nude mice bearing U373 human glioblastoma multiforme orthotopic xenografts. J Neurosurg 2005; 102:706-14. [PMID: 15871514 DOI: 10.3171/jns.2005.102.4.0706] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT Malignant gliomas consist of both heterogeneous proliferating and migrating cell subpopulations, with migrating glioma cells exhibiting less sensitivity to antiproliferative or proapoptotic drugs than proliferative cells. Therefore, the authors combined cimetidine, an antiinflammatory agent already proven to act against migrating epithelial cancer cells, with temozolomide to determine whether the combination induces antitumor activities in experimental orthotopic human gliomas compared with the effects of temozolomide alone. METHODS Cimetidine added to temozolomide compared with temozolomide alone induced survival benefits in nude mice with U373 human glioblastoma multiforme (GBM) cells orthotopically xenografted in the brain. Computer-assisted phase-contrast microscopy analyses of 9L rat and U373 human GBM cells showed that cimetidine significantly decreased the migration levels of these tumor cells in vitro at concentrations at which tumor growth levels were not modified (as revealed on monotetrazolium colorimetric assay). Computer-assisted microscope analyses of neoglycoconjugate-based glycohistochemical staining profiles of 9L gliosarcomas grown in vivo revealed that cimetidine significantly decreased expression levels of endogenous receptors for fucose and, to a lesser extent, for N-acetyl-lactosamine moieties. Endogenous receptors of this specificity are known to play important roles in adhesion and migration processes of brain tumor cells. CONCLUSIONS Cimetidine, acting as an antiadhesive and therefore an antimigratory agent for glioma cells, could be added in complement to the cytotoxic temozolomide compound to combat both migrating and proliferating cells in GBM.
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Affiliation(s)
- Florence Lefranc
- Department of Neurosurgery, Erasmus University Hospital, Belgium
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17
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Nieto-Sampedro M, Doncel-Pérez E, Fernández-Mayoralas A. Natural, synthetic and semisynthetic glycolipid inhibitors of glioma growth. Expert Opin Ther Pat 2005; 14:487-97. [DOI: 10.1517/13543776.14.4.487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Lefranc F, Brotchi J, Kiss R. Possible future issues in the treatment of glioblastomas: special emphasis on cell migration and the resistance of migrating glioblastoma cells to apoptosis. J Clin Oncol 2005; 23:2411-22. [PMID: 15800333 DOI: 10.1200/jco.2005.03.089] [Citation(s) in RCA: 411] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
PURPOSE The present review aims to emphasize that malignant gliomas are characterized by the diffuse invasion of distant brain tissue by a myriad of single migrating cells that exhibit decreased levels of apoptosis (programmed cell death type I), thus a resistance to cytotoxic insult. METHODS The present review surveys the molecular mechanisms of migration in malignant gliomas and potential issues arising from treatments, in addition to relationships between glioma cell migration and resistance to apoptosis in terms of the molecular signaling pathways. RESULTS Clinical and experimental data demonstrate that glioma cell migration is a complex combination of multiple molecular processes, including the alteration of tumor cell adhesion to a modified extracellular matrix, the secretion of proteases by the cells, and modifications to the actin cytoskeleton. Intracellular signaling pathways involved in the acquisition of resistance to apoptosis by migrating glioma cells concern PI3K, Akt, mTOR, NF-kappaB, and autophagy (programmed cell death type II). CONCLUSION A number of signaling pathways can be constitutively activated in migrating glioma cells, thus rendering these cells resistant to cytotoxic insults. However, these pathways are not all constitutively activated at the same time in any one glioma. Particular inhibitors should therefore only be chosen if the target is present in the tumor tissue, but this is only possible if individual patients are submitted to the molecular profiling of their tumors before undergoing any treatment to combat their migratory glioma cells. Specific antimigratory compounds should be added to conventional radio- and/or chemotherapy.
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Affiliation(s)
- Florence Lefranc
- Laboratoire de Toxicologie, Institut de Pharmacie, Université Libre de Bruxelles, Campus de la Plaine, Blvd du Triomphe, 1050 Brussels, Belgium
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19
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Romero-Ramírez L, Nieto-Sampedro M. Inhibiting human astrocytoma growth: structure-activity relationships in neurostatin related glycolipids. J Med Chem 2004; 47:4983-4. [PMID: 15456241 DOI: 10.1021/jm049816r] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Neurostatin, a mammalian brain inhibitor of division of astroblast and astrocytoma cells, was characterized as the disialoganglioside GD1b, 9-O-acetylated on the outer sialic acid residue (Galbeta1-->3GalNAcbeta1-->4(9-O-Ac-NeuAcalpha2-->8NeuAcalpha2-->3)Galbeta1-->4Glcbeta1-->1'-ceramide). Using semisynthetic approaches, we prepared and tested different gangliosides O-acetylated in the sialic acid and compared them to non-O-acetylated partners as inhibitors of U-373 glioma cells. Athough the O-acetylation of the sialic acid was the most important molecular feature for the antiproliferative activity of O-acetylated gangliosides, monosaccharide links Galbeta1--> 3GalNAcbeta1 and NeuAcalpha2-->8NeuAcalpha2 enhanced the inhibitory activity.
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20
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Hanessian S, Zhan L, Bovey R, Saavedra OM, Juillerat-Jeanneret L. Functionalized glycomers as growth inhibitors and inducers of apoptosis in human glioblastoma cells. J Med Chem 2003; 46:3600-11. [PMID: 12904064 DOI: 10.1021/jm0205853] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The effects of functionalized aryl beta-D-glycopyranosides (glycomers) on the proliferation, survival, and apoptosis of human glioblastoma cells in culture were evaluated as a way to control tumor progression. The results showed that inhibition of growth and/or induction of apoptosis can be achieved by these molecules in human glioblastoma cells. Inhibition of DNA synthesis precedes induction of apoptosis and growth inhibition. The substituents at C-1, C-2, C-3,C-4, and C-6 on the pyranosidic scaffold are important to modulate the action and the efficacy of these molecules. Human fibroblasts and brain-derived endothelial cells were less sensitive to glycomers than tumor cells. Thus, functionalized aryl beta-D-glycopyranosides represent a new class of molecules potentially able to control the progression of brain tumors.
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Affiliation(s)
- Stephen Hanessian
- Department of Chemistry, Université de Montréal, C. P. 6128, Succursale Centre-Ville, Montréal, Province of Quebec, Canada, H3C 3J7.
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21
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22
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Fernández-Mayoralas A, De La Figuera N, Zurita M, Vaquero J, Abraham GA, San Román J, Nieto-Sampedro M. Central neural tumor destruction by controlled release of a synthetic glycoside dispersed in a biodegradable polymeric matrix. J Med Chem 2003; 46:1286-8. [PMID: 12672228 DOI: 10.1021/jm025620k] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An octyl N-acetylglucosaminide derivative with a pentaerythritol chain at position 6 has been synthesized and evaluated as an inhibitor of neural tumor growth. The glycoside inhibited the growth of a neuroectodermic tumor implanted in rats and, when loaded on a slow-delivery polymer disk, caused the destruction of cultured human astroblastoma obtained after surgical biopsy.
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Abraham GA, Gallardo A, San Román J, Fernández-Mayoralas A, Zurita M, Vaquero J. Polymeric matrices based on graft copolymers of PCL onto acrylic backbones for releasing antitumoral drugs. J Biomed Mater Res A 2003; 64:638-47. [PMID: 12601775 DOI: 10.1002/jbm.a.10297] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Graft copolymers of poly(epsilon-caprolactone) (PCL) on poly(dimethylacrylamide) (PDMAm), poly(methylmethacrylate) (PMMA), or on copolymers of poly(DMAm-co-MMA) have been synthesized and characterized by (1)H NMR spectroscopy, differential scanning calorimetry (DSC), and size exclusion chromatography (SEC). These partially biodegradable copolymer matrices have been proposed as drug delivery systems for the release of low-molecular-weight glycosides. Octyl-N-acetyl-6-O-[2,2-bis(hydroxymethyl)-3-hydroxypropyl]-alpha-D-glucosamide, a synthetic carbohydrate able to inhibit the proliferation of human malignant glioma cells in culture and transplanted glioma in rats was selected as drug model. The in vitro aqueous behavior of four drug-loaded and unloaded graft copolymers of different MMA: DMAm and PCL ratios has been analyzed performing swelling, degradation, and drug release experiments. An intimate dependence of the aqueous behavior with the composition has been found. The higher was the DMAm content, the higher was the hydrophilicity of the synthesized systems as well as the swelling, degradation, and drug release rate. In vivo experiments in pigs demonstrated the very good tolerance of drug-loaded implanted polymeric discs, and that >95% of the charged drug is released after 2 months' implantation.
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Affiliation(s)
- Gustavo A Abraham
- Instituto de Ciencia y Tecnología de Polímeros, CSIC, Juan de la Cierva 3, 28006 Madrid, Spain
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Bélot F, Rabuka D, Fukuda M, Hindsgaul O. Chemoenzymatic synthesis of sulfated O-linked oligosaccharides: epitopes for MECA-79. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)01795-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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He L, Luo Y, Li K, Ding M, Lu A, Liu X, Wu T, Cai F. A NOVEL ROUTE TO SPIRO PHOSPHORUS-HETEROCYCLE VIA LAWESSON'S REAGENT. SYNTHETIC COMMUN 2002. [DOI: 10.1081/scc-120003639] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Cook BN, Bhakta S, Biegel T, Bowman KG, Armstrong JI, Hemmerich S, Bertozzi CR. Differential Carbohydrate Recognition of Two GlcNAc-6-sulfotransferases with Possible Roles in L-Selectin Ligand Biosynthesis. J Am Chem Soc 2000. [DOI: 10.1021/ja001224k] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brian N. Cook
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Sunil Bhakta
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Teresa Biegel
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Kendra G. Bowman
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Joshua I. Armstrong
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Stefan Hemmerich
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
| | - Carolyn R. Bertozzi
- Contribution from the Departments of Chemistry and Molecular and Cell Biology, University of California, Berkeley, California 94720, and Department of Molecular Biology, Roche Bioscience, 3401 Hillview Avenue, Palo Alto, California 94304-1397
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