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Haffouz A, Elleuch H, Khemakhem B, Ben Amor I, Jerbi A, Gargouri J, Sahli E, Mhadhbi N, Ghalla H, Rezgui F, Gargouri A, HadjKacem B. Antiplatelet activity and toxicity profile of novel phosphonium salts derived from Michael reaction. Eur J Pharm Sci 2024; 194:106692. [PMID: 38181870 DOI: 10.1016/j.ejps.2024.106692] [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: 10/03/2023] [Revised: 12/30/2023] [Accepted: 01/02/2024] [Indexed: 01/07/2024]
Abstract
In this work, five novel phosphonium salts derived from the Michael reaction were screened for their antiplatelet activity. Our findings revealed that compounds 2a, 2b, 2c, and 2d significantly inhibit platelet aggregation triggered by ADP or collagen (P < 0.001). Notably, compound 2c inhibited the arachidonic acid pathway (P < 0.001). Moreover, the selected compounds reduce CD62-P expression and inhibit GPIIb/IIIa activation. The interactions of the active compounds with their targets, ADP and collagen receptors, P2Y12 and GPVI respectively were investigated in silico using molecular docking studies. The results revealed a strong affinity of the active compounds for P2Y12 and GPVI. Additionally, cytotoxicity assays on platelets, erythrocytes, and human embryonic kidney HEK293 cells showed that compounds 2a, 2c and 2d were non-toxic even at high concentrations. In summary, our study shows that phosphonium salts can have strong antiplatelet power and suggests that compounds 2a, 2c and 2d could be promising antiplatelet agents for the management of cardiovascular diseases.
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Affiliation(s)
- Asma Haffouz
- Laboratory of Molecular Biotechnology of Eucaryotes, Centre of Biotechnology of Sfax, University of Sfax, B.P 1177, 3018, Sfax, Tunisia
| | - Haitham Elleuch
- Laboratory of Organic Chemistry, Faculty of Sciences, University Campus, 2092, University of Tunis El Manar, Tunis, Tunisia
| | - Bassem Khemakhem
- Laboratory of Plant Biotechnology, Sfax Faculty of Sciences, BP 1171, University of Sfax, 3038 Sfax, Tunisia
| | - Ikram Ben Amor
- Laboratory of Hematology (LR19SP04), Medical Faculty of Sfax. University of Sfax, Magida Boulila Avenue, 3029 Sfax, Tunisia
| | - Amira Jerbi
- Laboratory of Hematology (LR19SP04), Medical Faculty of Sfax. University of Sfax, Magida Boulila Avenue, 3029 Sfax, Tunisia
| | - Jalel Gargouri
- Laboratory of Hematology (LR19SP04), Medical Faculty of Sfax. University of Sfax, Magida Boulila Avenue, 3029 Sfax, Tunisia
| | - Emna Sahli
- Analytical service provider unit, Centre of Biotechnology of Sfax, University of Sfax, 3018, Sfax, Tunisia
| | - Noureddine Mhadhbi
- Laboratory Physico Chemistry of the Solid State, Department of Chemistry, Faculty of Sciences, University of Sfax, BP 1171, 3000 Sfax, Tunisia; University of Monastir, Preparatory Institute for Engineering Studies of Monastir, 5019 Monastir, Tunisia
| | - Houcine Ghalla
- Quantum Physics and Statistic Laboratory, Faculty of Sciences, University of Monastir, Monastir, 5000, Tunisia
| | - Farhat Rezgui
- Laboratory of Organic Chemistry, Faculty of Sciences, University Campus, 2092, University of Tunis El Manar, Tunis, Tunisia
| | - Ali Gargouri
- Laboratory of Molecular Biotechnology of Eucaryotes, Centre of Biotechnology of Sfax, University of Sfax, B.P 1177, 3018, Sfax, Tunisia
| | - Basma HadjKacem
- Laboratory of Molecular Biotechnology of Eucaryotes, Centre of Biotechnology of Sfax, University of Sfax, B.P 1177, 3018, Sfax, Tunisia; Department of Life Sciences, Faculty of Sciences of Gafsa, University of Gafsa, Gafsa, Tunisia.
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Lipid accumulation facilitates mitotic slippage-induced adaptation to anti-mitotic drug treatment. Cell Death Discov 2018; 4:109. [PMID: 30510774 PMCID: PMC6258763 DOI: 10.1038/s41420-018-0127-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/08/2018] [Accepted: 11/12/2018] [Indexed: 02/06/2023] Open
Abstract
Aberrant lipid accumulation is a hallmark of cancer known to contribute to its aggressiveness and malignancy. Emerging studies have demonstrated context-dependent changes in lipid metabolism during chemotherapy. However, there is little known regarding the mechanisms linking lipid metabolism to chemotherapy-induced cell fates. Here, we describe lipid accumulation in cells following antimitotic drug treatment. Cells arrested in mitosis, as well as cells that escaped mitotic arrest and underwent mitotic slippage, showed elevated cytoplasmic lipid droplets. Interestingly, we found that TOFA, a lipid biosynthesis inhibitor that targets acetyl-CoA carboxylase (ACC) and blocks lipid accumulation, promoted early slippage, reduced cellular stress and enhanced survival of antimitotic-treated cells. Our work previously revealed that cells that survive after mitotic slippage can become senescent and confer pro-tumourigenic effects through paracrine signalling. Modulating lipid biosynthesis in cells post slippage by TOFA amplified their inflammatory secretion profiles and accelerated the development of tumourigenic behaviour, particularly cell migration and invasion, in a paracrine-dependent manner. In contrast to TOFA, inhibition of lipid accumulation by C75, a drug targeting fatty acid synthase (FASN), significantly reduced the production of pro-tumourigenic factors and associated phenotypic effects. This suggests that discrete lipid biosynthesis pathways could contribute differentially to the regulation of pro-tumourigenic inflammation. The divergent effects of TOFA and C75 may be attributed to the opposing regulation of Malonyl-CoA, an intermediate in fatty acid synthesis that serves as a mediator of fatty acid oxidation. Taken together, our data reveal a previously unappreciated role for lipid accumulation in the cellular adaptation to antimitotic drug treatment. Targeting lipid biosynthesis in cells post slippage may reprogramme its secretory profile such that it not only negates tumour-promoting effects, but may also promote anti-tumour inflammation for clearance of post-slippage senescent cells.
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Prokofieva DS, Abzianidze VV, Bogachenkov AS. Synthesis and Study on the Potential Anticancer Activity of Phosphinolinium-Type Halide Salts. RUSS J GEN CHEM+ 2017. [DOI: 10.1134/s107036321712043x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Dass R, Grudzia Ż K, Ishikawa T, Nowakowski M, Dȩbowska R, Kazimierczuk K. Fast 2D NMR Spectroscopy for In vivo Monitoring of Bacterial Metabolism in Complex Mixtures. Front Microbiol 2017; 8:1306. [PMID: 28769889 PMCID: PMC5509914 DOI: 10.3389/fmicb.2017.01306] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 06/28/2017] [Indexed: 01/28/2023] Open
Abstract
The biological toolbox is full of techniques developed originally for analytical chemistry. Among them, spectroscopic experiments are very important source of atomic-level structural information. Nuclear magnetic resonance (NMR) spectroscopy, although very advanced in chemical and biophysical applications, has been used in microbiology only in a limited manner. So far, mostly one-dimensional 1H experiments have been reported in studies of bacterial metabolism monitored in situ. However, low spectral resolution and limited information on molecular topology limits the usability of these methods. These problems are particularly evident in the case of complex mixtures, where spectral peaks originating from many compounds overlap and make the interpretation of changes in a spectrum difficult or even impossible. Often a suite of two-dimensional (2D) NMR experiments is used to improve resolution and extract structural information from internuclear correlations. However, for dynamically changing sample, like bacterial culture, the time-consuming sampling of so-called indirect time dimensions in 2D experiments is inefficient. Here, we propose the technique known from analytical chemistry and structural biology of proteins, i.e., time-resolved non-uniform sampling. The method allows application of 2D (and multi-D) experiments in the case of quickly varying samples. The indirect dimension here is sparsely sampled resulting in significant reduction of experimental time. Compared to conventional approach based on a series of 1D measurements, this method provides extraordinary resolution and is a real-time approach to process monitoring. In this study, we demonstrate the usability of the method on a sample of Escherichia coli culture affected by ampicillin and on a sample of Propionibacterium acnes, an acne causing bacterium, mixed with a dose of face tonic, which is a complicated, multi-component mixture providing complex NMR spectrum. Through our experiments we determine the exact concentration and time at which the anti-bacterial agents affect the bacterial metabolism. We show, that it is worth to extend the NMR toolbox for microbiology by including techniques of 2D z-TOCSY, for total "fingerprinting" of a sample and 2D 13C-edited HSQC to monitor changes in concentration of metabolites in selected metabolic pathways.
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Affiliation(s)
- Rupashree Dass
- Centre of New Technologies, University of WarsawWarsaw, Poland
| | - Katarzyna Grudzia Ż
- Faculty of Chemistry, Biological and Chemical Research Centre, University of WarsawWarsaw, Poland
| | - Takao Ishikawa
- Department of Molecular Biology, Faculty of Biology, Institute of Biochemistry, University of WarsawWarsaw, Poland
| | | | - Renata Dȩbowska
- Dr Irena Eris Cosmetic Laboratories, Centre for Science and ResearchWarsaw, Poland
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Khasiyatullina NR, Mironov VF. Reaction of 6-bromo-1,2-naphthoquinone with diethylphosphine. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015090225] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hindmarsh JP, Prasad J, Gopal P, Singh H. NMR measurement of bacteria death kinetics during heat stress. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2014.09.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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NMR spectroscopy of macrophages loaded with native, oxidized or enzymatically degraded lipoproteins. PLoS One 2013; 8:e56360. [PMID: 23457556 PMCID: PMC3574142 DOI: 10.1371/journal.pone.0056360] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Accepted: 01/08/2013] [Indexed: 01/09/2023] Open
Abstract
Oxidized and enzymatically modified low-density lipoproteins (oxLDL and eLDL) play a key role in early stages of atherogenesis. Their uptake by recruited macrophages leads to endolysosomal phospholipidosis or foam cell formation, respectively, each of which is preceded by highly differential lipid restructuring processes. We applied 1H-NMR spectroscopy (NMRS) to elucidate these structural rearrangements both in consequence of lipoprotein modifications and following phagocytosis. Being specifically sensitive to the mobile lipid subset, NMRS of oxLDL and eLDL revealed a partial and total immobilization of lipids, respectively. NMRS of intact macrophages showed a sixfold increase in mobile lipids in case of loading with eLDL but no significant changes for oxLDL or native LDL. This finding reflected the disparate lipid storage in lipid droplets and in multilamellar endolysosomal clusters when loaded with either eLDL or oxLDL, respectively. Moreover, a significant shift of the degree of saturation towards mainly polyunsaturated fatty acid chains was found for the mobile lipid pool in eLDL-loaded macrophages. Additional analyses of lipid extracts by NMRS and mass spectrometry (MS) reflected these changes in lipid content and in fatty acid composition only partially. In summary, in-cell NMRS represents a unique lipidomics tool to investigate structural changes within the mobile lipid pool following atherogenic triggers that can be not detected by the analysis of lipid extracts by MS or NMRS.
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Khasiyatullina NR, Mironov VF. Reaction of 1,6-bis(diphenylphosphino)hexane with 6-bromo-1,2-naphthoquinone. RUSS J GEN CHEM+ 2012. [DOI: 10.1134/s1070363212050222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Burgess KMN, Korobkov I, Bryce DL. A Combined Solid-State NMR and X-ray Crystallography Study of the Bromide Ion Environments in Triphenylphosphonium Bromides. Chemistry 2012; 18:5748-58. [DOI: 10.1002/chem.201103478] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Indexed: 12/13/2022]
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Dereli Ö, Erdogdu Y, Gulluoglu M. Study on molecular structure and vibrational spectra of (triphenylphosphoranylidene) acetaldehyde using DFT: A combined experimental and quantum chemical approach. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.12.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Long TE, Lu X, Galizzi M, Docampo R, Gut J, Rosenthal PJ. Phosphonium lipocations as antiparasitic agents. Bioorg Med Chem Lett 2012; 22:2976-9. [PMID: 22414614 DOI: 10.1016/j.bmcl.2012.02.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2012] [Revised: 02/09/2012] [Accepted: 02/13/2012] [Indexed: 12/30/2022]
Abstract
Phosphonium lipocations were synthesized and evaluated for inhibition of the development of Plasmodium falciparum and Trypanosoma cruzi, etiological agents of malaria and Chagas disease, respectively. Optimal phthalimides and 1,4-naphthoquinone-based lipocations were active in vitro at mid-high nM concentrations against P. falciparum and low μM concentrations against T. cruzi.
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Affiliation(s)
- Timothy E Long
- Department of Pharmaceutical and Biomedical Sciences and Center for Drug Discovery, University of Georgia, Athens, GA 30602, USA.
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Bachowska B, Kazmierczak-Baranska J, Cieslak M, Nawrot B, Szczęsna D, Skalik J, Bałczewski P. High Cytotoxic Activity of Phosphonium Salts and Their Complementary Selectivity towards HeLa and K562 Cancer Cells: Identification of Tri-n-butyl-n-hexadecylphosphonium bromide as a Highly Potent Anti-HeLa Phosphonium Salt. ChemistryOpen 2012; 1:33-8. [PMID: 24551490 PMCID: PMC3922438 DOI: 10.1002/open.201100003] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Indexed: 12/24/2022] Open
Abstract
Quaternary ammonium and phosphonium salts have been screened for their toxic effect on HeLa and K562 cancer cell lines, as well as on normal HUVEC cells. Tri-n-butyl-n-hexadecylphosphonium bromide, the first phosphonium salt with a halogen anion tested against HeLa cells, was 12 times more potent (IC50 <5 μm after 24 and 48 h) than the clinically used reference compound cisplatin and 17 times more potent than tri-n-hexyltetradecylphosphonium bis(trifluoromethylsulfonyl)imide, which, to the best of our knowledge, is the first phosphonium salt to be evaluated in HeLa cells. However, it was inactive against K562 cells (24 and 48 h). According to a caspase-3/7 assay, its toxicity has not been connected with the induction of apoptosis. In contrast, triphenylalkylphosphonium iodides with shorter C1-5 alkyl chains were inactive against HeLa cells but very active against K562 cells (IC50=6-10 μm after 48 h). Phosphonium cations with halide counterions proved to be more potent than those with (CF3SO2)2N(-) as the anion, as in the anticancer agent NSC 747251, or other anions in molecules with similar alkyl chain lengths. On the other hand, a series of ammonium salts containing a short methylthiomethyl or methoxymethyl side chain revealed low cytotoxicity (IC50 >500 μm after 24 and 48 h) against both HeLa and K562 cancer cell lines as well as normal HUVEC cells, showing that the nontoxic N(+)CH2YMe (Y=S, O) structural motif in ammonium salts could be suitable for further optimization and development, especially in transfection experiments.
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Affiliation(s)
- Barbara Bachowska
- Institute of Chemistry, Environmental Protection and Biotechnology, Jan Długosz University in Częstochowa Armii Krajowej 13/15, 42-200 Częstochowa (Poland) E-mail:
| | - Julia Kazmierczak-Baranska
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
| | - Marcin Cieslak
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
| | - Barbara Nawrot
- Department of Bioorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
| | - Dorota Szczęsna
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
| | - Joanna Skalik
- Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
| | - Piotr Bałczewski
- Institute of Chemistry, Environmental Protection and Biotechnology, Jan Długosz University in Częstochowa Armii Krajowej 13/15, 42-200 Częstochowa (Poland) E-mail: ; Department of Heteroorganic Chemistry, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences Sienkiewicza 112, 90-363 Łódź (Poland)
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Delikatny EJ, Chawla S, Leung DJ, Poptani H. MR-visible lipids and the tumor microenvironment. NMR IN BIOMEDICINE 2011; 24:592-611. [PMID: 21538631 PMCID: PMC3640643 DOI: 10.1002/nbm.1661] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2010] [Revised: 11/22/2010] [Accepted: 12/04/2010] [Indexed: 05/08/2023]
Abstract
MR-visible lipids or mobile lipids are defined as lipids that are observable using proton MRS in cells and tissues. These MR-visible lipids are composed of triglycerides and cholesterol esters that accumulate in neutral lipid droplets, where their MR visibility is conferred as a result of the increased molecular motion available in this unique physical environment. This review discusses the factors that lead to the biogenesis of MR-visible lipids in cancer cells and in other cell types, such as immune cells and fibroblasts. We focus on the accumulations of mobile lipids that are inducible in cultured cells by a number of stresses, including culture conditions, and in response to activating stimuli or apoptotic cell death induced by anticancer drugs. This is compared with animal tumor models, where increases in mobile lipids are observed in response to chemo- and radiotherapy, and to human tumors, where mobile lipids are observed predominantly in high-grade brain tumors and in regions of necrosis. Conducive conditions for mobile lipid formation in the tumor microenvironment are discussed, including low pH, oxygen availability and the presence of inflammatory cells. It is concluded that MR-visible lipids appear in cancer cells and human tumors as a stress response. Mobile lipids stored as neutral lipid droplets may play a role in the detoxification of the cell or act as an alternative energy source, especially in cancer cells, which often grow in ischemic/hypoxic environments. The role of MR-visible lipids in cancer diagnosis and the assessment of the treatment response in both animal models of cancer and human brain tumors is also discussed. Although technical limitations exist in the accurate detection of intratumoral mobile lipids, early increases in mobile lipids after therapeutic interventions may be useful as a potential biomarker for the assessment of treatment response in cancer.
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Affiliation(s)
- E James Delikatny
- Department of Radiology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
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Ceylan Ü, Tanak H, Türkkan E, Dereli Ö, Büyükgüngör O. (2-Hydroxyethyl)triphenylphosphonium chloride. Acta Crystallogr Sect E Struct Rep Online 2011; 67:o641. [PMID: 21522394 PMCID: PMC3051953 DOI: 10.1107/s160053681100482x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Accepted: 02/08/2011] [Indexed: 11/21/2022]
Abstract
In the crystal structure of the title compound, C20H20OP+·Cl−, the cations and anions are linked by intermolecular C—H⋯Cl and O—H⋯Cl hydrogen bonds into chains running parallel to the b axis. In the cation, the hydroxyethyl group is disordered over two orientations with site-occupancy factors of 0.554 (4) and 0.446 (4).
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Preclinical evaluation of novel triphenylphosphonium salts with broad-spectrum activity. PLoS One 2010; 5. [PMID: 20957228 PMCID: PMC2949386 DOI: 10.1371/journal.pone.0013131] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2010] [Accepted: 09/03/2010] [Indexed: 12/18/2022] Open
Abstract
Background Recently, there has been a surge of interest in developing compounds selectively targeting mitochondria for the treatment of neoplasms. The critical role of mitochondria in cellular metabolism and respiration supports this therapeutic rationale. Dysfunction in the processes of energy production and metabolism contributes to attenuation of response to pro-apoptotic stimuli and increased ROS production both of which are implicated in the initiation and progression of most human cancers. Methodology/Principal Findings A high-throughput MTT-based screen of over 10,000 drug-like small molecules for anti-proliferative activity identified the phosphonium salts TP187, 197 and 421 as having IC50 concentrations in the submicromolar range. TP treatment induced cell cycle arrest independent of p53 status, as determined by analysis of DNA content in propidium iodide stained cells. In a mouse model of human breast cancer, TP-treated mice showed significantly decreased tumor growth compared to vehicle or paclitaxel treated mice. No toxicities or organ damage were observed following TP treatment. Immunohistochemical staining of tissue sections from TP187-treated tumors demonstrated a decrease in cellular proliferation and increased caspase-3 cleavage. The fluorescent properties of analog TP421 were exploited to assess subcellular uptake of TP compounds, demonstrating mitochondrial localization. Following mitochondrial uptake cells exhibited decreased oxygen consumption and concomittant increase in mitochondrial superoxide production. Proteomics analysis of results from a 600 target antibody microarray demonstrated that TP compounds significantly affected signaling pathways relevant to growth and proliferation. Conclusions/Significance Through our continued interest in designing compounds targeting cancer-cell metabolism, the Warburg effect, and mitochondria we recently discovered a series of novel, small-molecule compounds containing a triphenylphosphine moiety that show remarkable activity in a panel of cancer cell lines as well as in a mouse model of human breast cancer. The mechanism of action includes mitochondrial localization causing decreased oxygen consumption, increased superoxide production and attenuated growth factor signaling.
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Duarte IF, Lamego I, Marques J, Marques MPM, Blaise BJ, Gil AM. Nuclear Magnetic Resonance (NMR) Study of the Effect of Cisplatin on the Metabolic Profile of MG-63 Osteosarcoma Cells. J Proteome Res 2010; 9:5877-86. [DOI: 10.1021/pr100635n] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Iola F. Duarte
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Inês Lamego
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Joana Marques
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
| | - M. Paula M. Marques
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Benjamin J. Blaise
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Ana M. Gil
- CICECO−Departmento de Química, Campus Universitário de Santiago, Universidade de Aveiro, 3810-193 Aveiro, Portugal, R&D Unit “Molecular Physical-Chemistry”, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Portugal, and Université de Lyon, Centre de RMN à Très Hauts Champs, 5 rue de la Doua, 69100 Villeurbanne, France
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Milkevitch M, Beardsley NJ, Delikatny EJ. Phenylbutyrate induces apoptosis and lipid accumulations via a peroxisome proliferator-activated receptor gamma-dependent pathway. NMR IN BIOMEDICINE 2010; 23:473-9. [PMID: 20225233 PMCID: PMC3627387 DOI: 10.1002/nbm.1484] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The effects of the selective peroxisome proliferator activated receptor-gamma (PPAR-gamma) inhibitor GW9662 on phenylbutyrate (PB)-induced NMR-detectable lipid metabolites was investigated on DU145 prostate cancer cells. DU145 cells were perfused with 10 mM PB in the presence or absence of 1 microM of GW9662 and the results monitored by (31)P and diffusion-weighted (1)H NMR spectroscopy. GW9662 completely reversed PB-induced NMR-visible lipid and total choline accumulation in (1)H spectra and glycerophosphocholine and beta-NTP in (31)P spectra. In addition, pre-incubation with GW9662 significantly reduced PB-induced caspase-3 activation, reversed the G(1) block as measured by flow cytometry, and otherwise had little effect on cell survival as measured by MTT assay. These results suggest that the NMR visible lipid accumulation and apoptosis induced by PB treatment occurs through a mechanism that is mediated by PPAR-gamma.
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Affiliation(s)
| | | | - E. James Delikatny
- Correspondence to: E. James Delikatny, Ph.D., Molecular Imaging Laboratory, Department of Radiology, University of Pennsylvania School of Medicine, B6 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104, Phone: (215) 746-7386, Fax: (215) 573-2113,
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Glunde K, Serkova NJ. Therapeutic targets and biomarkers identified in cancer choline phospholipid metabolism. Pharmacogenomics 2006; 7:1109-23. [PMID: 17054420 DOI: 10.2217/14622416.7.7.1109] [Citation(s) in RCA: 120] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Choline phospholipid metabolism is altered in a wide variety of cancers. The choline metabolite profile of tumors and cancer cells is characterized by an elevation of phosphocholine and total choline-containing compounds. Noninvasive magnetic resonance spectroscopy can be used to detect this elevation as an endogenous biomarker of cancer, or as a predictive biomarker for monitoring tumor response to novel targeted therapies. The enzymes directly causing this elevation, such as choline kinase, phospholipase C and phospholipase D may provide molecular targets for anticancer therapies. Signal transduction pathways that are activated in cancers, such as those mediated by the receptor tyrosine kinases breakpoint cluster region-abelson (Bcr-Abl), c-KIT or epidermal growth factor receptor (EGFR), correlate with the alterations in choline phospholipid metabolism of cancers, and also offer molecular targets for specific anticancer therapies. This review summarizes recently discovered molecular targets in choline phospholipid metabolism and signal transduction pathways, which may lead to novel anticancer therapies potentially being monitored by magnetic resonance spectroscopy techniques.
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Affiliation(s)
- Kristine Glunde
- The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, 720 Rutland Avenue, 212 Traylor Building Baltimore, MD 21205, USA.
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Tesiram YA, Saunders D, Towner RA. Application of proton NMR spectroscopy in the study of lipid metabolites in a rat hepatocarcinogenesis model. Biochim Biophys Acta Mol Cell Biol Lipids 2005; 1737:61-8. [PMID: 16230047 DOI: 10.1016/j.bbalip.2005.09.006] [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] [Received: 07/01/2005] [Revised: 08/11/2005] [Accepted: 09/09/2005] [Indexed: 10/25/2022]
Abstract
Liver cancer is one of the most common cancers worldwide. Altered lipid metabolism in the liver is a key feature of developing liver nodules and tumors. Methods of analysis vary from the most sophisticated chromatography to the in vivo nuclear magnetic resonance (NMR) spectroscopy. In this study, we present a systematic method for the identification and quantitation of signature signals from lipid metabolites using 1D NMR proton spectroscopy. We assessed lipid metabolites in an epigenetic rat hepatocarcinogenesis model induced by treatment with a choline-deficient diet (CDAA, choline-deficient l-amino acid defined) over a period of 1 year, from the formation of steatosis, to the development of nodules and adenomas. A comparable choline-sufficient (CSAA) diet was used for the controls. The resonances of the methylene protons of the glycerol backbone in phospholipids were used to quantify the total concentration of such compounds. CDAA rat livers were found to have significantly higher levels of phospholipids, when compared to CSAA, throughout the entire carcinogenesis period. The tri-methyl protons of choline compounds serves to quantify total choline, and the vinyl and bis-allyl proton resonances can be used to not only quantify fatty acid concentrations but also to probe the number of double bonds in a fatty acid moiety. Early stages of carcinogenesis indicate a lower degree of double bonds in fatty acyl containing compounds in CDAA rat livers, when compared to CSAA. The results of this study are in agreement with those previously published in the literature on other rat hepatocarcinogenesis models.
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Affiliation(s)
- Y A Tesiram
- Oklahoma Medical Research Foundation, Free Radical Biology and Aging Research Program, 825 NE 13th St, Oklahoma City, OK 73104, USA
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Lindskog M, Spenger C, Klason T, Jarvet J, Gräslund A, Johnsen JI, Ponthan F, Douglas L, Nordell B, Kogner P. Proton magnetic resonance spectroscopy in neuroblastoma: Current status, prospects and limitations. Cancer Lett 2005; 228:247-55. [PMID: 15946794 DOI: 10.1016/j.canlet.2004.12.055] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Accepted: 12/10/2004] [Indexed: 10/25/2022]
Abstract
Non-invasive biological information about residual neuroblastoma tumour tissue could allow treatment monitoring without the need for repeated biopsies. Magnetic resonance spectroscopy (MRS) can be performed with standard MR-scanners, providing specific biochemical information from selected tumour regions. By proton 1H-MRS, lipids, certain amino acids and lactate can be detected and their relative concentrations estimated in vivo. Using experimental models of neuroblastoma, we have described the potential of 1H-MRS for the prediction of tumour tissue viability and treatment response. Whereas viable neuroblastoma tissue is dominated by the choline 1H-MRS resonance, cell death as a consequence of spontaneous necrosis or successful treatment with chemotherapy, angiogenesis inhibitors, or NSAIDs is associated with decreased choline content. Therapy-induced neuroblastoma cell death is also associated with enhanced 1H-MRS resonances from mobile lipids and polyunsaturated fatty acids. The mobile lipid/choline ratio correlates significantly with cell death and based on the dynamics of this ratio tumour regression or continued growth (drug resistance) after chemotherapy can be predicted in vivo. The implications of these findings are discussed with focus on the potentials and limitations of introducing 1H-MRS for clinical assessment of treatment response in children with neuroblastoma. Biochemical monitoring of neuroblastoma with 1H-MRS could enable tailoring of individual therapy as well as provide early pharmacodynamic evaluation of novel therapeutic modalities.
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Affiliation(s)
- Magnus Lindskog
- Childhood Cancer Research Unit, Department of Woman and Child Health, Karolinska Institutet, Karolinska Hospital, S-17176 Stockholm, Sweden.
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21
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Milkevitch M, Shim H, Pilatus U, Pickup S, Wehrle JP, Samid D, Poptani H, Glickson JD, Delikatny EJ. Increases in NMR-visible lipid and glycerophosphocholine during phenylbutyrate-induced apoptosis in human prostate cancer cells. Biochim Biophys Acta Mol Cell Biol Lipids 2005; 1734:1-12. [PMID: 15866478 DOI: 10.1016/j.bbalip.2005.01.008] [Citation(s) in RCA: 72] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2004] [Revised: 12/20/2004] [Accepted: 01/14/2005] [Indexed: 11/25/2022]
Abstract
DU145 human prostatic carcinoma cells were treated with the differentiating agents phenylacetate (PA) and phenylbutyrate (PB) and examined in perfused cultures by diffusion-weighted 1H and 31P nuclear magnetic resonance spectroscopy (NMR). PA and PB (10 mM) induced significant (>3-fold) time-dependent increases in the level of NMR-visible lipids and total choline in 1H spectra, and glycerophosphocholine levels in the 31P spectra, with the increases being greater for PB. These effects were accompanied by significant increases in cytoplasmic lipid droplets and intracellular lipid volume fraction as observed by morphometric analysis of Oil Red O-stained cells. PB treatment caused cell cycle arrest in the G1 phase and induction of apoptosis. In contrast, PA-treated DU145 cells showed an accumulation of cells in G2/M and no evidence of apoptosis. These results demonstrate that significant differences exist in the mechanism of PA and PB activity, although both compounds cause similar, but graded alterations in lipid metabolism. The simultaneous accumulation of mobile lipid and glycerophosphocholine suggests that PB and PA induce phospholipid catabolism via a phospholipase-mediated pathway. The mobile lipid accumulation following the induction of either apoptosis and cytostasis by related differentiating agents indicate that the presence of NMR-visible lipids may not be a specific event causally resulting from the induction of apoptosis.
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Affiliation(s)
- Matthew Milkevitch
- Department of Radiology, University of Pennsylvania School of Medicine, B6 Blockley Hall, 423 Guardian Drive, Philadelphia, PA 19104, USA
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Lindskog M, Spenger C, Jarvet J, Gräslund A, Kogner P. Predicting Resistance or Response to Chemotherapy by Proton Magnetic Resonance Spectroscopy in Neuroblastoma. J Natl Cancer Inst 2004; 96:1457-66. [PMID: 15467035 DOI: 10.1093/jnci/djh273] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND We previously showed that proton magnetic resonance spectroscopy (1H-MRS) enables estimation of neuroblastoma tumor viability. Here we investigated if 1H-MRS can predict response or resistance to chemotherapy in neuroblastoma. METHODS Neuroblastoma cell lines with various drug sensitivities were treated with cytotoxic drugs (cisplatin, etoposide, and irinotecan) and examined by 1H-MRS. Viability was assessed by trypan blue staining and the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay. Nude rats carrying drug-sensitive or drug-resistant neuroblastoma xenografts were treated for 4 days with irinotecan (n = 11) or saline (n = 11) and were examined with 1H-MRS at 4.7 T before and during treatment. The Wilcoxon matched-pairs test was used to test statistical significance of difference within treatment groups. Independent groups were compared using the Mann-Whitney U test. Correlation was assessed with Spearman's rank correlation. All statistical tests were two-sided. RESULTS Cytotoxic drug treatment of drug-sensitive SH-SY5Y neuroblastoma cells resulted in increased methylene and polyunsaturated fatty acid resonances and decreased choline resonance. The methylene/choline ratio correlated with cell death (r(s) = .94, P<.001) and was increased in cisplatin-treated drug-sensitive (SH-SY5Y, IMR-32) but not drug-resistant [SK-N-BE2, SK-N-FI, SK-N-AS] cell lines. No changes were observed in SK-N-BE2 cells treated with irinotecan or cisplatin, whereas circumvention of the resistance by arsenic trioxide treatment led to lipid accumulation and choline depletion. Irinotecan therapy of rats carrying drug-sensitive xenografts caused the methylene/choline ratio of tumors to increase eightfold after 3 days (95% confidence interval [CI] = fivefold to 12-fold; P = .005 compared with pretreatment spectra at day 0) and caused tumors to regress statistically significantly on day 10 compared with pretreatment volume on day 0 (difference = -60%, 95% CI = -12% to -100%, n = 6; P = .012). The methylene/choline ratio of nonregressing drug-resistant xenografts was unaffected. No differences were observed after saline treatment. CONCLUSIONS Response or resistance to chemotherapy is accurately predicted by 1H-MRS in experimental neuroblastoma models in vivo.
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Affiliation(s)
- Magnus Lindskog
- Childhood Cancer Research Unit, Department of Woman and Child Health, Karolinska Institutet, Karolinska Hospital, Stockholm, Sweden.
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Santini MT, Rainaldi G, Romano R, Ferrante A, Clemente S, Motta A, Indovina PL. MG-63 human osteosarcoma cells grown in monolayer and as three-dimensional tumor spheroids present a different metabolic profile: a1H NMR study. FEBS Lett 2003; 557:148-54. [PMID: 14741358 DOI: 10.1016/s0014-5793(03)01466-2] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
High resolution proton nuclear magnetic resonance ((1)H NMR) spectroscopy was used to determine if the same cell line (MG-63 human osteosarcoma cells) grown in monolayer or as small (about 50-80 microm in diameter), three-dimensional tumor spheroids with no hypoxic center has different metabolic characteristics. Consequently, the (1)H NMR spectra were obtained from both types of cultures and then compared. The results indicate that the type of cellular spatial array determines specific changes in MG-63 cells. In particular, small but significant differences in lactate and alanine indicating a perturbation in energy metabolism were observed in the two cell models. In addition, although variations in CH(2) and CH(3) groups were also seen, it is not possible at this time to establish if lipid metabolism is truly different in cells and spheroids.
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Affiliation(s)
- Maria Teresa Santini
- Dipartimento di Tecnologie e Salute, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy.
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Whitnall MR, Thornton-Pett M, Kee TP. [1-[2-(bis-{2-[(1-phenylethylimino)methyl]phenyl}phosphinoyl)phenyl]meth-[E]-ylidene]-(1-phenylethyl)amine. Synthesis, X-ray and conformational dynamic analysis. Inorganica Chim Acta 2003. [DOI: 10.1016/s0020-1693(03)00299-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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