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Aronne G, Izzo LG, Romano LE, De Francesco S, De Micco V, De Pascale S, Carrubba E, Galoforo G, Piccirillo S, Valentini G, Mascetti G. Solutions to Overcome Technical Constraints and Achieve Scientific Goals of the Multi-trop Experiment. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s42496-020-00040-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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2
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Tiwari V, Mashimo T, An Z, Vemireddy V, Piccirillo S, Askari P, Hulsey KM, Zhang S, de Graaf RA, Patel TR, Pan E, Mickey BE, Maher EA, Bachoo RM, Choi C. In vivo MRS measurement of 2-hydroxyglutarate in patient-derived IDH-mutant xenograft mouse models versus glioma patients. Magn Reson Med 2020; 84:1152-1160. [PMID: 32003035 DOI: 10.1002/mrm.28183] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 12/09/2019] [Accepted: 01/03/2020] [Indexed: 11/10/2022]
Abstract
PURPOSE To generate a preclinical model of isocitrate dehydrogenase (IDH) mutant gliomas from glioma patients and design a MRS method to test the compatibility of 2-hydroxyglutarate (2HG) production between the preclinical model and patients. METHODS Five patient-derived xenograft (PDX) mice were generated from two glioma patients with IDH1 R132H mutation. A PRESS sequence was tailored at 9.4 T, with computer simulation and phantom analyses, for improving 2HG detection in mice. 2HG and other metabolites in the PDX mice were measured using the optimized MRS at 9.4 T and compared with 3 T MRS measurements of the metabolites in the parental-tumor patients. Spectral fitting was performed with LCModel using in-house basis spectra. Metabolite levels were quantified with reference to water. RESULTS The PRESS TE was optimized to be 96 ms, at which the 2HG 2.25 ppm signal was narrow and inverted, thereby leading to unequivocal separation of the 2HG resonance from adjacent signals from other metabolites. The optimized MRS provided precise detection of 2HG in mice compared to short-TE MRS at 9.4 T. The 2HG estimates in PDX mice were in excellent agreement with the 2HG measurements in the patients. CONCLUSION The similarity of 2HG production between PDX models and parental-tumor patients indicates that PDX tumors retain the parental IDH metabolic fingerprint and can serve as a preclinical model for improving our understanding of the IDH-mutation associated metabolic reprogramming.
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Affiliation(s)
- Vivek Tiwari
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Tomoyuki Mashimo
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Zhongxu An
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Vamsidhara Vemireddy
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Sara Piccirillo
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Pegah Askari
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.,Joint Graduate Program in Biomedical Engineering at University of Texas Arlington and University of Texas Southwestern Medical Center, Texas
| | - Keith M Hulsey
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Shanrong Zhang
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robin A de Graaf
- Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, Connecticut.,Department of Biomedical Engineering, Yale University School of Medicine, New Haven, Connecticut
| | - Toral R Patel
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Edward Pan
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Bruce E Mickey
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Elizabeth A Maher
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Robert M Bachoo
- Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, Texas.,Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
| | - Changho Choi
- Advanced Imaging Research Center, University of Texas Southwestern Medical Center, Dallas, Texas.,Department of Radiology, University of Texas Southwestern Medical Center, Dallas, Texas.,Harold C. Simmons Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas
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Li L, Vemireddy V, Goodarzi M, Mashimo T, Billman T, Hatanpaa K, Mickey B, Maher E, Bachoo R, Piccirillo S. GENE-03. WILD-TYPE Tp53 UNDERGOES A CELL TYPE-SPECIFIC INACTIVATION BY SIRT1 IN DE NOVO GLIOBLASTOMA. Neuro Oncol 2018. [DOI: 10.1093/neuonc/noy148.430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Li Li
- UT Southwestern Medical Center, Dallas, TX, USA
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Genchi GG, Degl'Innocenti A, Salgarella AR, Pezzini I, Marino A, Menciassi A, Piccirillo S, Balsamo M, Ciofani G. Modulation of gene expression in rat muscle cells following treatment with nanoceria in different gravity regimes. Nanomedicine (Lond) 2018; 13:2821-2833. [PMID: 30334476 DOI: 10.2217/nnm-2018-0316] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
AIM Oxidative stress (OS) is strictly associated with senescence/pathogenesis of biological systems. As putative countermeasure to environmental OS, cerium oxide nanoparticles (nanoceria [NC]) were administered to muscle cells on ground and aboard the International Space Station. MATERIALS & METHODS Transcriptional analyses were conducted through microarray technology and hierarchical clustering. Venn diagram and gene ontology analyses were also performed on selected gene lists. RESULTS Adaptive responses to both NC administration and to permanence in real microgravity conditions occurred. Enrichment in the biological processes related to aging, body fat development and mesodermal tissue proliferation for NC-treated samples were found. CONCLUSION Nanotechnology antioxidants promise applications to pathological conditions governed by OS on Earth and in life-hostile environments (low Earth orbit and deep space).
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Affiliation(s)
- Giada Graziana Genchi
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Andrea Degl'Innocenti
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Alice Rita Salgarella
- Scuola Superiore Sant'Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Ilaria Pezzini
- Scuola Superiore Sant'Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Attilio Marino
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Arianna Menciassi
- Scuola Superiore Sant'Anna, The BioRobotics Institute, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy
| | - Sara Piccirillo
- Agenzia Spaziale Italiana, Via del Politecnico snc, Roma 00133, Italy
| | - Michele Balsamo
- Kayser Italia S.r.l., Via di Popogna 501, Livorno 57128, Italy
| | - Gianni Ciofani
- Istituto Italiano di Tecnologia, Smart Bio-Interfaces, Viale Rinaldo Piaggio 34, Pontedera (Pisa) 56025, Italy.,Politecnico di Torino, Department of Aerospace & Mechanical Engineering, Corso Duca degli Abruzzi 24, Torino 10129, Italy
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Baiocco G, Giraudo M, Bocchini L, Barbieri S, Locantore I, Brussolo E, Giacosa D, Meucci L, Steffenino S, Ballario A, Barresi B, Barresi R, Benassai M, Ravagnolo L, Narici L, Rizzo A, Carrubba E, Carubia F, Neri G, Crisconio M, Piccirillo S, Valentini G, Barbero S, Giacci M, Lobascio C, Ottolenghi A. A water-filled garment to protect astronauts during interplanetary missions tested on board the ISS. Life Sci Space Res (Amst) 2018; 18:1-11. [PMID: 30100142 DOI: 10.1016/j.lssr.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 06/08/2023]
Abstract
As manned spaceflights beyond low Earth orbit are in the agenda of Space Agencies, the concerns related to space radiation exposure of the crew are still without conclusive solutions. The risk of long-term detrimental health effects needs to be kept below acceptable limits, and emergency countermeasures must be planned to avoid the short-term consequences of exposure to high particle fluxes during hardly predictable solar events. Space habitat shielding cannot be the ultimate solution: the increasing complexity of future missions will require astronauts to protect themselves in low-shielded areas, e.g. during emergency operations. Personal radiation shielding is promising, particularly if using available resources for multi-functional shielding devices. In this work we report on all steps from the conception, design, manufacturing, to the final test on board the International Space Station (ISS) of the first prototype of a water-filled garment for emergency radiation shielding against solar particle events. The garment has a good shielding potential and comfort level. On-board water is used for filling and then recycled without waste. The successful outcome of this experiment represents an important breakthrough in space radiation shielding, opening to the development of similarly conceived devices and their use in interplanetary missions as the one to Mars.
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Affiliation(s)
- G Baiocco
- Physics Department, University of Pavia, Pavia, Italy.
| | - M Giraudo
- Thales Alenia Space - Italy, Turin, Italy
| | - L Bocchini
- Thales Alenia Space - Italy, Turin, Italy; Physics Department, University of Turin, Turin, Italy
| | - S Barbieri
- Physics Department, University of Pavia, Pavia, Italy
| | | | - E Brussolo
- Società Metropolitana Acque Torino S.p.A., Turin, Italy
| | - D Giacosa
- Società Metropolitana Acque Torino S.p.A., Turin, Italy
| | - L Meucci
- Società Metropolitana Acque Torino S.p.A., Turin, Italy
| | - S Steffenino
- Società Metropolitana Acque Torino S.p.A., Turin, Italy
| | | | | | | | | | | | - L Narici
- Physics Department, University of Rome Tor Vergata, Rome, Italy; INFN-Roma2, Rome Italy
| | - A Rizzo
- Physics Department, University of Rome Tor Vergata, Rome, Italy; INFN-Roma2, Rome Italy
| | | | - F Carubia
- Kayser Italia S.r.l., Livorno, Italy
| | - G Neri
- Kayser Italia S.r.l., Livorno, Italy
| | | | | | | | | | | | - C Lobascio
- Thales Alenia Space - Italy, Turin, Italy
| | - A Ottolenghi
- Physics Department, University of Pavia, Pavia, Italy
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Fraschetti C, Guarcini L, Zazza C, Mannina L, Circi S, Piccirillo S, Chiavarino B, Filippi A. Real time evolution of unprotected protonated galactosamine probed by IRMPD spectroscopy. Phys Chem Chem Phys 2018. [PMID: 29536991 DOI: 10.1039/c7cp07642h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Conformational characterization of single α- and β-epimers of galactosamine in solution still remains an intriguing task because of their flexibility and ability to interconvert. This difficulty was circumvented by recording several "snapshots" of the epimerization process by means of fast ESI vaporization of a galactosamine·HCl sample solution at different times. Consequently, the so generated gaseous mixtures were spectroscopically investigated and the specific conformational features of both α- and β-epimers were assigned, despite the overlapping of several IR signals. Interestingly, from a comparison with time-resolved 1H-NMR data obtained for the same solutions, the catalyzing effect of the applied ESI technique in the anomerization process clearly emerges. Finally, the experimental data were supported using both the Density Functional Theory (DFT) and Block-Localized Wavefunction (BLW) approaches: the latter method was applied here for the first time for the investigation of charged species.
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Affiliation(s)
- C Fraschetti
- Dipartimento di Chimica e Tecnologie del Farmaco, Sapienza-Università di Roma, P.le Aldo Moro 5, 00185, Rome, Italy.
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Bari M, Battista N, Merlini G, Fava M, Ruggiero C, Piccirillo S, Valentini G, Mascetti G, Gambacurta A, Maccarrone M. The SERiSM project: preliminary data on human stem cell reprogramming in microgravity. Front Physiol 2018. [DOI: 10.3389/conf.fphys.2018.26.00038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Singh DK, Kollipara RK, Vemireddy V, Yang XL, Sun Y, Regmi N, Klingler S, Hatanpaa KJ, Raisanen J, Cho SK, Sirasanagandla S, Nannepaga S, Piccirillo S, Mashimo T, Wang S, Humphries CG, Mickey B, Maher EA, Zheng H, Kim RS, Kittler R, Bachoo RM. Oncogenes Activate an Autonomous Transcriptional Regulatory Circuit That Drives Glioblastoma. Cell Rep 2017; 18:961-976. [PMID: 28122245 DOI: 10.1016/j.celrep.2016.12.064] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Revised: 10/23/2016] [Accepted: 12/20/2016] [Indexed: 01/19/2023] Open
Abstract
Efforts to identify and target glioblastoma (GBM) drivers have primarily focused on receptor tyrosine kinases (RTKs). Clinical benefits, however, have been elusive. Here, we identify an SRY-related box 2 (SOX2) transcriptional regulatory network that is independent of upstream RTKs and capable of driving glioma-initiating cells. We identified oligodendrocyte lineage transcription factor 2 (OLIG2) and zinc-finger E-box binding homeobox 1 (ZEB1), which are frequently co-expressed irrespective of driver mutations, as potential SOX2 targets. In murine glioma models, we show that different combinations of tumor suppressor and oncogene mutations can activate Sox2, Olig2, and Zeb1 expression. We demonstrate that ectopic co-expression of the three transcription factors can transform tumor-suppressor-deficient astrocytes into glioma-initiating cells in the absence of an upstream RTK oncogene. Finally, we demonstrate that the transcriptional inhibitor mithramycin downregulates SOX2 and its target genes, resulting in markedly reduced proliferation of GBM cells in vivo.
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Affiliation(s)
- Dinesh K Singh
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Rahul K Kollipara
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Vamsidara Vemireddy
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiao-Li Yang
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yuxiao Sun
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Nanda Regmi
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Stefan Klingler
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Kimmo J Hatanpaa
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jack Raisanen
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pathology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Steve K Cho
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shyam Sirasanagandla
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Suraj Nannepaga
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sara Piccirillo
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Tomoyuki Mashimo
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Shan Wang
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Caroline G Humphries
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Bruce Mickey
- Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Neurological Surgery, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Elizabeth A Maher
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Hongwu Zheng
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - Ryung S Kim
- Albert Einstein Cancer Center, Albert Einstein College of Medicine, New York, NY 10461, USA
| | - Ralf Kittler
- Eugene McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Pharmacology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Green Center for Reproductive Biology Sciences, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
| | - Robert M Bachoo
- Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Annette G. Strauss Center for Neuro-Oncology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.
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Tavaré S, Sottoriva A, Piccirillo S, Spiteri I, Touloumis A, Marioni JC, Curtis CN, Watts C. Abstract IA04: Understanding tumor heterogeneity in glioblastoma. Cancer Res 2015. [DOI: 10.1158/1538-7445.brain15-ia04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Glioblastoma (GB) is advanced at the time of clinical presentation and response to treatment may be confounded by clonal heterogeneity and differential patterns of resistance in spatially distinct parts of the same tumor. However, we do not understand how this complex environment evolves. Accumulating evidence suggests that intra-tumor heterogeneity is likely to be the key to understanding treatment failure, however the dynamics of such heterogeneity are still poorly understood.
Using a Fluorescence-Guided Multiple Sampling technique we obtained samples from the tumor mass, the sub-ependymal zone and the non-fluorescent tumor margin. We performed an integrated genomic analysis to develop a spatial reconstruction of tumor evolution in individual patients. Temporal analysis was performed using patient-derived xenografts obtained by serial transplantation of tumor cells in immuno-suppressed mice.
Phylogenetic reconstruction of the fragments from each GB identifies copy number alterations in EGFR and CDKN2A/B/p14ARF as early evolutionary events while aberrations in PDGFRA and PTEN occur later in the disease progression. Transcriptional profiling reveals that many patients display multiple GB subtypes within their tumor while deconstruction of the clonal organization of each tumor fragment at single-molecule level identified multiple coexisting cell lineages. Ancestral tumor precursors that gave rise to the tumor mass were found in the sub-ependymal zone of a subset of GB patients. When used in in vivo experiments, tumor cells show variable competitive capacity for disease propagation and further genetic diversification, suggesting that GB evolves through complex dynamics of sub-clonal fitness advantage and acquisitions of mutations and copy number alterations.
Our integrated genomic analysis addresses the evolution of GB in individual patients across multiple spatial scales. Our data reveal early clonal diversification generating a genetically complex and highly evolved disease environment at clinical presentation. We propose that these fundamental patient-specific tumor evolutionary dynamics underlie clinical phenotypic heterogeneity and may have implications for the emergence of resistant disease.
Citation Format: Simon Tavaré, Andrea Sottoriva, Sara Piccirillo, Inma Spiteri, Anestis Touloumis, John C. Marioni, Christina N. Curtis, Colin Watts. Understanding tumor heterogeneity in glioblastoma. [abstract]. In: Proceedings of the AACR Special Conference: Advances in Brain Cancer Research; May 27-30, 2015; Washington, DC. Philadelphia (PA): AACR; Cancer Res 2015;75(23 Suppl):Abstract nr IA04.
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Affiliation(s)
- Simon Tavaré
- 1University of Cambridge, Cambridge, United Kingdom,
| | | | | | - Inma Spiteri
- 2Institute for Cancer Research, London, United Kingdom,
| | | | - John C. Marioni
- 3European Bioinformatics Institute, Hinxton, United Kingdom,
| | | | - Colin Watts
- 1University of Cambridge, Cambridge, United Kingdom,
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Watts C, Piccirillo S, Colman S, Potter N, van Delft F, Lillis S, Carnicer MJ, Kearney L, Francis NJ, Venkitaraman A, Greaves M. ATPS-93CHEMO-NAÏVE GLIOBLASTOMA PATIENTS CONTAIN GENETICALLY HETEROGENEOUS SUB-CLONES CAPABLE OF TUMOUR PROPAGATION AND SPATIALLY HETEROGENEOUS DRUG-RESISTANT CELL POPULATIONS. Neuro Oncol 2015. [DOI: 10.1093/neuonc/nov204.93] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kolb A, Watts C, Piccirillo S. DD-06 * POTENTIATING THE THERAPEUTIC EFFICIENCY OF THE ALKYLATING CHEMOTHERAPY TEMOZOLOMIDE IN PATIENTS WITH GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou246.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Watts C, Piccirillo S, Kearney L, Potter N, van Delft F, Coleman S, Lillis S, Carnicer MJ, Greaves M. CB-18 * INTERROGATION OF SUB-CLONAL GENETIC DIVERSITY OF HUMAN GBM REVEALS GENETIC HETEROGENEITY IN TUMOUR-PROPAGATING CELLS, WHICH DISPLAY VARIABLE COMPETITIVE CAPACITY FOR TUMOUR PROPAGATION IN VIVO. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou241.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Kolb A, Piccirillo S, Watts C. P49 * SENSITIZING GLIOBLASTOMA CELLS TO THERAPY BY TARGETING THE L-GLUTAMATE/L-CYSTINE ANTIPORTER SYSTEM XC-. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou249.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kolb A, Trecharichi A, Piccirillo S, Watts C, Price S. OP08 * CHARACTERISATION OF RESIDUAL CELLS IN GLIOBLASTOMA MULTIFORME. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou251.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kolb AK, Piccirillo S, Watts C. P03.04 * SENSITIZING GLIOBLASTOMA CELLS TO THERAPY BY TARGETING THE L-GLUTAMATE/L-CYSTINE ANTIPORTER SYSTEM XC-. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou174.127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Watts C, Piccirillo S, Spiteri I, Sottoriva A, Touloumis A, Marioni J, Curtis C, Tavare S. COMPLEX EVOLUTIONARY DYNAMICS GENERATES GENETIC DIVERSITY AND INTRA-TUMOR HETEROGENEITY IN INDIVIDUAL PATIENTS WITH GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou206.23] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Adachi K, Sasaki H, Nagahisa S, Yoshida K, Hattori N, Nishiyama Y, Kawase T, Hasegawa M, Abe M, Hirose Y, Alentorn A, Marie Y, Poggioli S, Alshehhi H, Boisselier B, Carpentier C, Mokhtari K, Capelle L, Figarella-Branger D, Hoang-Xuan K, Sanson M, Delattre JY, Idbaih A, Yust-Katz S, Anderson M, Olar A, Eterovic A, Ezzeddine N, Chen K, Zhao H, Fuller G, Aldape K, de Groot J, Andor N, Harness J, Lopez SG, Fung TL, Mewes HW, Petritsch C, Arivazhagan A, Somasundaram K, Thennarasu K, Pandey P, Anandh B, Santosh V, Chandramouli B, Hegde A, Kondaiah P, Rao M, Bell R, Kang R, Hong C, Song J, Costello J, Bell R, Nagarajan R, Zhang B, Diaz A, Wang T, Song J, Costello J, Bie L, Li Y, Li Y, Liu H, Luyo WFC, Carnero MH, Iruegas MEP, Morell AR, Figueiras MC, Lopez RL, Valverde CF, Chan AKY, Pang JCS, Chung NYF, Li KKW, Poon WS, Chan DTM, Wang Y, Ng HAK, Chaumeil M, Larson P, Yoshihara H, Vigneron D, Nelson S, Pieper R, Phillips J, Ronen S, Clark V, Omay ZE, Serin A, Gunel J, Omay B, Grady C, Youngblood M, Bilguvar K, Baehring J, Piepmeier J, Gutin P, Vortmeyer A, Brennan C, Pamir MN, Kilic T, Krischek B, Simon M, Yasuno K, Gunel M, Cohen AL, Sato M, Aldape KD, Mason C, Diefes K, Heathcock L, Abegglen L, Shrieve D, Couldwell W, Schiffman JD, Colman H, D'Alessandris QG, Cenci T, Martini M, Ricci-Vitiani L, De Maria R, Larocca LM, Pallini R, de Groot J, Theeler B, Aldape K, Lang F, Rao G, Gilbert M, Sulman E, Luthra R, Eterovic K, Chen K, Routbort M, Verhaak R, Mills G, Mendelsohn J, Meric-Bernstam F, Yung A, MacArthur K, Hahn S, Kao G, Lustig R, Alonso-Basanta M, Chandrasekaran S, Wileyto EP, Reyes E, Dorsey J, Fujii K, Kurozumi K, Ichikawa T, Onishi M, Ishida J, Shimazu Y, Kaur B, Chiocca EA, Date I, Geisenberger C, Mock A, Warta R, Schwager C, Hartmann C, von Deimling A, Abdollahi A, Herold-Mende C, Gevaert O, Achrol A, Gholamin S, Mitra S, Westbroek E, Loya J, Mitchell L, Chang S, Steinberg G, Plevritis S, Cheshier S, Gevaert O, Mitchell L, Achrol A, Xu J, Steinberg G, Cheshier S, Napel S, Zaharchuk G, Plevritis S, Gevaert O, Achrol A, Chang S, Harsh G, Steinberg G, Cheshier S, Plevritis S, Gutman D, Holder C, Colen R, Dunn W, Jain R, Cooper L, Hwang S, Flanders A, Brat D, Hayes J, Droop A, Thygesen H, Boissinot M, Westhead D, Short S, Lawler S, Bady P, Kurscheid S, Delorenzi M, Hegi ME, Crosby C, Faulkner C, Smye-Rumsby T, Kurian K, Williams M, Hopkins K, Faulkner C, Palmer A, Williams H, Wragg C, Haynes HR, Williams M, Hopkins K, Kurian KM, Haynes HR, Crosby C, Williams H, White P, Hopkins K, Williams M, Kurian KM, Ishida J, Kurozumi K, Ichikawa T, Onishi M, Fujii K, Shimazu Y, Oka T, Date I, Jalbert L, Elkhaled A, Phillips J, Chang S, Nelson S, Jensen R, Salzman K, Schabel M, Gillespie D, Mumert M, Johnson B, Mazor T, Hong C, Barnes M, Yamamoto S, Ueda H, Tatsuno K, Aihara K, Jalbert L, Nelson S, Bollen A, Hirst M, Marra M, Mukasa A, Saito N, Aburatani H, Berger M, Chang S, Taylor B, Costello J, Popov S, Mackay A, Ingram W, Burford A, Jury A, Vinci M, Jones C, Jones DTW, Hovestadt V, Picelli S, Wang W, Northcott PA, Kool M, Reifenberger G, Pietsch T, Sultan M, Lehrach H, Yaspo ML, Borkhardt A, Landgraf P, Eils R, Korshunov A, Zapatka M, Radlwimmer B, Pfister SM, Lichter P, Joy A, Smirnov I, Reiser M, Shapiro W, Mills G, Kim S, Feuerstein B, Jungk C, Mock A, Geisenberger C, Warta R, Friauf S, Unterberg A, Herold-Mende C, Juratli TA, McElroy J, Meng W, Huebner A, Geiger KD, Krex D, Schackert G, Chakravarti A, Lautenschlaeger T, Kim BY, Jiang W, Beiko J, Prabhu S, DeMonte F, Lang F, Gilbert M, Aldape K, Sawaya R, Cahill D, McCutcheon I, Lau C, Wang L, Terashima K, Yamaguchi S, Burstein M, Sun J, Suzuki T, Nishikawa R, Nakamura H, Natsume A, Terasaka S, Ng HK, Muzny D, Gibbs R, Wheeler D, Lautenschlaeger T, Juratli TA, McElroy J, Meng W, Huebner A, Geiger KD, Krex D, Schackert G, Chakravarti A, Zhang XQ, Sun S, Lam KF, Kiang KMY, Pu JKS, Ho ASW, Leung GKK, Loebel F, Curry WT, Barker FG, Lelic N, Chi AS, Cahill DP, Lu D, Yin J, Teo C, McDonald K, Madhankumar A, Weston C, Slagle-Webb B, Sheehan J, Patel A, Glantz M, Connor J, Maire C, Francis J, Zhang CZ, Jung J, Manzo V, Adalsteinsson V, Homer H, Blumenstiel B, Pedamallu CS, Nickerson E, Ligon A, Love C, Meyerson M, Ligon K, Mazor T, Johnson B, Hong C, Barnes M, Jalbert LE, Nelson SJ, Bollen AW, Smirnov IV, Song JS, Olshen AB, Berger MS, Chang SM, Taylor BS, Costello JF, Mehta S, Armstrong B, Peng S, Bapat A, Berens M, Melendez B, Mollejo M, Mur P, Hernandez-Iglesias T, Fiano C, Ruiz J, Rey JA, Mock A, Stadler V, Schulte A, Lamszus K, Schichor C, Westphal M, Tonn JC, Unterberg A, Herold-Mende C, Morozova O, Katzman S, Grifford M, Salama S, Haussler D, Nagarajan R, Zhang B, Johnson B, Bell R, Olshen A, Fouse S, Diaz A, Smirnov I, Kang R, Wang T, Costello J, Nakamizo S, Sasayama T, Tanaka H, Tanaka K, Mizukawa K, Yoshida M, Kohmura E, Northcott P, Hovestadt V, Jones D, Kool M, Korshunov A, Lichter P, Pfister S, Otani R, Mukasa A, Takayanagi S, Saito K, Tanaka S, Shin M, Saito N, Ozawa T, Riester M, Cheng YK, Huse J, Helmy K, Charles N, Squatrito M, Michor F, Holland E, Perrech M, Dreher L, Rohn G, Goldbrunner R, Timmer M, Pollo B, Palumbo V, Calatozzolo C, Patane M, Nunziata R, Farinotti M, Silvani A, Lodrini S, Finocchiaro G, Lopez E, Rioscovian A, Ruiz R, Siordia G, de Leon AP, Rostomily C, Rostomily R, Silbergeld D, Kolstoe D, Chamberlain M, Silber J, Roth P, Keller A, Hoheisel J, Codo P, Bauer A, Backes C, Leidinger P, Meese E, Thiel E, Korfel A, Weller M, Saito K, Mukasa A, Nagae G, Nagane M, Aihara K, Takayanagi S, Tanaka S, Aburatani H, Saito N, Salama S, Sanborn JZ, Grifford M, Brennan C, Mikkelsen T, Jhanwar S, Chin L, Haussler D, Sasayama T, Tanaka K, Nakamizo S, Nishihara M, Tanaka H, Mizukawa K, Kohmura E, Schliesser M, Grimm C, Weiss E, Claus R, Weichenhan D, Weiler M, Hielscher T, Sahm F, Wiestler B, Klein AC, Blaes J, Weller M, Plass C, Wick W, Stragliotto G, Rahbar A, Soderberg-Naucler C, Sulman E, Won M, Ezhilarasan R, Sun P, Blumenthal D, Vogelbaum M, Colman H, Jenkins R, Chakravarti A, Jeraj R, Brown P, Jaeckle K, Schiff D, Dignam J, Atkins J, Brachman D, Werner-Wasik M, Gilbert M, Mehta M, Aldape K, Terashima K, Shen J, Luan J, Yu A, Suzuki T, Nishikawa R, Matsutani M, Liang Y, Man TK, Lau C, Trister A, Tokita M, Mikheeva S, Mikheev A, Friend S, Rostomily R, van den Bent M, Erdem L, Gorlia T, Taphoorn M, Kros J, Wesseling P, Dubbink H, Ibdaih A, Sanson M, French P, van Thuijl H, Mazor T, Johnson B, Fouse S, Heimans J, Wesseling P, Ylstra B, Reijneveld J, Taylor B, Berger M, Chang S, Costello J, Prabowo A, van Thuijl H, Scheinin I, van Essen H, Spliet W, Ferrier C, van Rijen P, Veersema T, Thom M, Meeteren ASV, Reijneveld J, Ylstra B, Wesseling P, Aronica E, Kim H, Zheng S, Mikkelsen T, Brat DJ, Virk S, Amini S, Sougnez C, Chin L, Barnholtz-Sloan J, Verhaak RGW, Watts C, Sottoriva A, Spiteri I, Piccirillo S, Touloumis A, Collins P, Marioni J, Curtis C, Tavare S, Weiss E, Grimm C, Schliesser M, Hielscher T, Claus R, Sahm F, Wiestler B, Klein AC, Blaes J, Tews B, Weiler M, Weichenhan D, Hartmann C, Weller M, Plass C, Wick W, Yeung TPC, Al-Khazraji B, Morrison L, Hoffman L, Jackson D, Lee TY, Yartsev S, Bauman G, Zheng S, Fu J, Vegesna R, Mao Y, Heathcock LE, Torres-Garcia W, Ezhilarasan R, Wang S, McKenna A, Chin L, Brennan CW, Yung WKA, Weinstein JN, Aldape KD, Sulman EP, Chen K, Koul D, Verhaak RGW. OMICS AND PROGNSTIC MARKERS. Neuro Oncol 2013; 15:iii136-iii155. [PMCID: PMC3823898 DOI: 10.1093/neuonc/not183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
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Ledda M, Megiorni F, Pozzi D, Giuliani L, D’Emilia E, Piccirillo S, Mattei C, Grimaldi S, Lisi A. Non ionising radiation as a non chemical strategy in regenerative medicine: Ca(2+)-ICR "In Vitro" effect on neuronal differentiation and tumorigenicity modulation in NT2 cells. PLoS One 2013; 8:e61535. [PMID: 23585910 PMCID: PMC3621667 DOI: 10.1371/journal.pone.0061535] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Accepted: 03/11/2013] [Indexed: 11/18/2022] Open
Abstract
In regenerative medicine finding a new method for cell differentiation without pharmacological treatment or gene modification and minimal cell manipulation is a challenging goal. In this work we reported a neuronal induced differentiation and consequent reduction of tumorigenicity in NT2 human pluripotent embryonal carcinoma cells exposed to an extremely low frequency electromagnetic field (ELF-EMF), matching the cyclotron frequency corresponding to the charge/mass ratio of calcium ion (Ca(2+)-ICR). These cells, capable of differentiating into post-mitotic neurons following treatment with Retinoic Acid (RA), were placed in a solenoid and exposed for 5 weeks to Ca(2+)-ICR. The solenoid was installed in a μ-metal shielded room to avoid the effect of the geomagnetic field and obtained totally controlled and reproducible conditions. Contrast microscopy analysis reveled, in the NT2 exposed cells, an important change in shape and morphology with the outgrowth of neuritic-like structures together with a lower proliferation rate and metabolic activity alike those found in the RA treated cells. A significant up-regulation of early and late neuronal differentiation markers and a significant down-regulation of the transforming growth factor-α (TGF-α) and the fibroblast growth factor-4 (FGF-4) were also observed in the exposed cells. The decreased protein expression of the transforming gene Cripto-1 and the reduced capability of the exposed NT2 cells to form colonies in soft agar supported these last results. In conclusion, our findings demonstrate that the Ca(2+)-ICR frequency is able to induce differentiation and reduction of tumorigenicity in NT2 exposed cells suggesting a new potential therapeutic use in regenerative medicine.
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Affiliation(s)
- Mario Ledda
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Francesca Megiorni
- Department of Experimental Medicine, University of Rome “Sapienza”, Rome, Italy
| | - Deleana Pozzi
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
- Department of Experimental Medicine, University of Rome “Sapienza”, Rome, Italy
| | - Livio Giuliani
- Department of Productive Plants and Interaction with the Environment, National Institute for Occupational Safety and Prevention, Rome, Italy
| | - Enrico D’Emilia
- Department of Productive Plants and Interaction with the Environment, National Institute for Occupational Safety and Prevention, Rome, Italy
| | - Sara Piccirillo
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Cristiana Mattei
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Settimio Grimaldi
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
| | - Antonella Lisi
- Institute of Translational Pharmacology, National Research Council, Rome, Italy
- * E-mail:
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Filomeni G, Piccirillo S, Rotilio G, Ciriolo MR. p38(MAPK) and ERK1/2 dictate cell death/survival response to different pro-oxidant stimuli via p53 and Nrf2 in neuroblastoma cells SH-SY5Y. Biochem Pharmacol 2012; 83:1349-57. [PMID: 22342995 DOI: 10.1016/j.bcp.2012.02.003] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 01/31/2012] [Accepted: 02/01/2012] [Indexed: 12/21/2022]
Abstract
Redox changes are often reported as causative of neoplastic transformation and chemoresistance, but are also exploited as clinical tools to selectively kill tumor cells. We previously demonstrated that gastrointestinal-derived tumor histotypes are resistant to ROS-based treatments by means of the redox activation of Nrf2, but highly sensitive to disulfide stressors triggering apoptosis via the redox induction of Trx1/p38(MAPK)/p53 signaling pathway. Here, we provide evidence that neuroblastoma SH-SY5Y has a complete opposite behavior, being sensitive to H₂O₂, but resistant to the glutathione (GSH)-oxidizing molecule diamide. Consistent with these observations, the apoptotic pathway activated upon H₂O₂ treatment relies upon Trx1 oxidation, and is mediated by the p38(MAPK)/p53 signaling axis. Pre-treatment with different antioxidants, pharmacological inhibitor of p38(MAPK), or small interfering RNA against p53 rescue cell viability. On the contrary, cell survival to diamide relies upon redox activation of Nrf2, in a way independent on Keap1 oxidation, but responsive to ERK1/2 activation. Chemical inhibition of GSH neo-synthesis or ERK1/2 phosphorylation, as well as overexpression of the dominant-negative form of Nrf2 sensitizes cells to diamide toxicity. In the searching for the molecular determinant(s) unifying these phenomena, we found that SH-SY5Y cells show high GSH levels, but exhibit very low GPx activity. This feature allows to efficiently buffer disulfide stress, but leaves them being vulnerable to H₂O₂-mediated insult. The increase of GPx activity by means of selenium supplementation or GPx1 ectopic expression completely reverses death phenotype, indicating that the response of tumor cells to diverse oxidative stimuli deeply involves the entire GSH redox system.
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Affiliation(s)
- Giuseppe Filomeni
- Department of Biology, University of Rome "Tor Vergata", via della Ricerca Scientifica, 00133 Rome, Italy
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Al-Mayhani MTF, Grenfell R, Narita M, Piccirillo S, Kenney-Herbert E, Fawcett JW, Collins VP, Ichimura K, Watts C. NG2 expression in glioblastoma identifies an actively proliferating population with an aggressive molecular signature. Neuro Oncol 2011; 13:830-45. [PMID: 21798846 PMCID: PMC3145476 DOI: 10.1093/neuonc/nor088] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2010] [Accepted: 05/13/2011] [Indexed: 12/18/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common type of primary brain tumor and a highly malignant and heterogeneous cancer. Current conventional therapies fail to eradicate or curb GBM cell growth. Hence, exploring the cellular and molecular basis of GBM cell growth is vital to develop novel therapeutic approaches. Neuroglia (NG)-2 is a transmembrane proteoglycan expressed by NG2+ progenitors and is strongly linked to cell proliferation in the normal brain. By using NG2 as a biomarker we identify a GBM cell population (GBM NG2+ cells) with robust proliferative, clonogenic, and tumorigenic capacity. We show that a significant proportion (mean 83%) of cells proliferating in the tumor mass express NG2 and that over 50% of GBM NG2+ cells are proliferating. Compared with the GBM NG2- cells from the same tumor, the GBM of NG2+ cells overexpress genes associated with aggressive tumorigenicity, including overexpression of Mitosis and Cell Cycling Module genes (e.g., MELK, CDC, MCM, E2F), which have been previously shown to correlate with poor survival in GBM. We also show that the coexpression pattern of NG2 with other glial progenitor markers in GBM does not recapitulate that described in the normal brain. The expression of NG2 by such an aggressive and actively cycling GBM population combined with its location on the cell surface identifies this cell population as a potential therapeutic target in a subset of patients with GBM.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Colin Watts
- Cambridge Centre for Brain Repair, Department of Clinical Neurosciences, University of Cambridge (M.T.F.A-M., S.P., E.K-H., J.W.F., C.W.); MRC Laboratory of Molecular Biology, University of Cambridge (R.G.); CRUK Cancer Research Institute, University of Cambridge (M.N.); Division of Molecular Histopathology, Department of Pathology, University of Cambridge (V.P.C., K.I.); Department of Neurosurgery, University of Cambridge (C.W.), Cambridge, UK
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Loilome W, Joshi AD, ap Rhys CMJ, Piccirillo S, Vescovi AL, Gallia GL, Riggins GJ. Erratum to: Glioblastoma cell growth is suppressed by disruption of fibroblast growth factor pathway signaling. J Neurooncol 2010. [DOI: 10.1007/s11060-010-0155-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fan X, Khaki L, Zhu TS, Soules ME, Talsma CE, Gul N, Koh C, Zhang J, Li YM, Maciaczyk J, Nikkhah G, Dimeco F, Piccirillo S, Vescovi AL, Eberhart CG. NOTCH pathway blockade depletes CD133-positive glioblastoma cells and inhibits growth of tumor neurospheres and xenografts. Stem Cells 2010; 28:5-16. [PMID: 19904829 DOI: 10.1002/stem.254] [Citation(s) in RCA: 454] [Impact Index Per Article: 32.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Cancer stem cells (CSCs) are thought to be critical for the engraftment and long-term growth of many tumors, including glioblastoma (GBM). The cells are at least partially spared by traditional chemotherapies and radiation therapies, and finding new treatments that can target CSCs may be critical for improving patient survival. It has been shown that the NOTCH signaling pathway regulates normal stem cells in the brain, and that GBMs contain stem-like cells with higher NOTCH activity. We therefore used low-passage and established GBM-derived neurosphere cultures to examine the overall requirement for NOTCH activity, and also examined the effects on tumor cells expressing stem cell markers. NOTCH blockade by gamma-secretase inhibitors (GSIs) reduced neurosphere growth and clonogenicity in vitro, whereas expression of an active form of NOTCH2 increased tumor growth. The putative CSC markers CD133, NESTIN, BMI1, and OLIG2 were reduced following NOTCH blockade. When equal numbers of viable cells pretreated with either vehicle (dimethyl sulfoxide) or GSI were injected subcutaneously into nude mice, the former always formed tumors, whereas the latter did not. In vivo delivery of GSI by implantation of drug-impregnated polymer beads also effectively blocked tumor growth, and significantly prolonged survival, albeit in a relatively small cohort of animals. We found that NOTCH pathway inhibition appears to deplete stem-like cancer cells through reduced proliferation and increased apoptosis associated with decreased AKT and STAT3 phosphorylation. In summary, we demonstrate that NOTCH pathway blockade depletes stem-like cells in GBMs, suggesting that GSIs may be useful as chemotherapeutic reagents to target CSCs in malignant gliomas.
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Affiliation(s)
- Xing Fan
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, Michigan 48109-2200, USA.
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Filomeni G, Desideri E, Cardaci S, Graziani I, Piccirillo S, Rotilio G, Ciriolo MR. Carcinoma cells activate AMP-activated protein kinase-dependent autophagy as survival response to kaempferol-mediated energetic impairment. Autophagy 2010; 6:202-16. [PMID: 20083895 DOI: 10.4161/auto.6.2.10971] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Kaempferol, a dietary cancer chemopreventive polyphenol, has been reported to trigger apoptosis in several tumor histotypes, but the mechanism underlying this phenomenon is not fully understood. Here, we demonstrate that in HeLa cells, kaempferol induces energetic failure due to inhibition of both glucose uptake and Complex I of the mitochondrial respiratory chain. As adaptive response, cells activate autophagy, the occurrence of which was established cytofluorometrically, upon acridine orange staining, and immunochemically, by following the increase of the autolysosome-associated form of the microtubule-associated protein light chain 3 (LC3-II). Autophagy is an early and reversible process occurring as survival mechanisms against apoptosis. Indeed, chemical inhibition of autophagy, by incubations with monensin, wortmannin, 3-methyladenine, or by silencing Atg5, significantly increases the extent of apoptosis, which takes place via the mitochondrial pathway, and shortens the time in which the apoptotic markers are detectable. We also demonstrate that autophagy depends on the early activation of the AMP-activated protein kinase (AMPK)/mTOR-mediated pathway. The overexpression of dominant negative AMPK results in a decrease of autophagic cells, a decrement of LC3-II levels, and a significant increase of apoptosis. Experiments performed with another carcinoma cell line yielded the same results, suggesting for kaempferol a unique mechanism of action.
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Giardini A, Rondino F, Paladini A, Speranza M, Satta M, Piccirillo S. Enantioselective HF Loss Promoted by Resonant Two-Photon Ionization of Supersonically Expanded (R)-1-Phenyl-2,2,2-trifluoroethanol Clusters. J Phys Chem A 2009; 113:15127-35. [DOI: 10.1021/jp905322n] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- A. Giardini
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
| | - F. Rondino
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
| | - A. Paladini
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
| | - M. Speranza
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
| | - M. Satta
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
| | - S. Piccirillo
- CNR-IMIP, Tito Scalo (PZ), Italy, Dipartimento di Chimica e Tecnologie del Farmaco, Università di Roma “La Sapienza”, Rome, Italy, CNR-ISC, Rome, Italy, and Dipartimento di Scienze e Tecnologie Chimiche, Università di Roma “Tor Vergata”, Rome, Italy
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Piccirillo S, Filomeni G, Brüne B, Rotilio G, Ciriolo MR. Redox mechanisms involved in the selective activation of Nrf2-mediated resistance versus p53-dependent apoptosis in adenocarcinoma cells. J Biol Chem 2009; 284:27721-33. [PMID: 19643729 DOI: 10.1074/jbc.m109.014837] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have investigated the role of reactive oxygen species and thiol-oxidizing agents in the induction of cell death and have shown that adenocarcinoma gastric (AGS) cells respond differently to the oxidative challenge according to the signaling pathways activated. In particular, apoptosis in AGS cells is induced via the mitochondrial pathway upon treatment with thiol-oxidizing agents, such as diamide. Apoptosis is associated with persistent oxidative damage, as evidenced by the increase in carbonylated proteins and the expression/activation of DNA damage-sensitive proteins histone H2A.X and DNA-dependent protein kinase. Resistance to hydrogen peroxide is instead associated with Keap1 oxidation and rapid translocation of Nrf2 into the nucleus. Sensitivity to diamide and resistance to hydrogen peroxide are correlated with GSH redox changes, with diamide severely increasing GSSG, and hydrogen peroxide transiently inducing protein-GSH mixed disulfides. We show that p53 is activated in response to diamide treatment by the oxidative induction of the Trx1/p38(MAPK) signaling pathway. Similar results were obtained with another carcinoma cell line, CaCo2, indicating that these findings are not limited to AGS cells. Our data suggest that thiol-oxidizing agents could be exploited as inducers of apoptosis in tumor histotypes resistant to ROS-producing chemotherapeutics.
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Affiliation(s)
- Sara Piccirillo
- Department of Biology, University of Rome Tor Vergata, 00133 Rome, Italy
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Filomeni G, Piccirillo S, Graziani I, Cardaci S, Da Costa Ferreira AM, Rotilio G, Ciriolo MR. The isatin-Schiff base copper(II) complex Cu(isaepy)2 acts as delocalized lipophilic cation, yields widespread mitochondrial oxidative damage and induces AMP-activated protein kinase-dependent apoptosis. Carcinogenesis 2009; 30:1115-24. [PMID: 19406932 DOI: 10.1093/carcin/bgp105] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We previously demonstrated that Bis[(2-oxindol-3-ylimino)-2-(2-aminoethyl)pyridine-N,N']copper(II) [Cu(isaepy)(2)] was an efficient inducer of the apoptotic mitochondrial pathway. Here, we deeply dissect the mechanisms underlying the ability of Cu(isaepy)(2) to cause mitochondriotoxicity. In particular, we demonstrate that Cu(isaepy)(2) increases NADH-dependent oxygen consumption of isolated mitochondria and that this phenomenon is associated with oxy-radical production and insensitive to adenosine diphosphate. These data indicate that Cu(isaepy)(2) behaves as an uncoupler and this property is also confirmed in cell systems. Particularly, SH-SY5Y cells show: (i) an early loss of mitochondrial transmembrane potential; (ii) a decrease in the expression levels of respiratory complex components and (iii) a significant adenosine triphosphate (ATP) decrement. The causative energetic impairment mediated by Cu(isaepy)(2) in apoptosis is confirmed by experiments carried out with rho(0) cells, or by glucose supplementation, where cell death is significantly inhibited. Moreover, gastric and cervix carcinoma AGS and HeLa cells, which rely most of their ATP production on oxidative phosphorylation, show a marked sensitivity toward Cu(isaepy)(2). Adenosine monophosphate-activated protein kinase (AMPK), which is activated by events increasing the adenosine monophosphate:ATP ratio, is deeply involved in the apoptotic process because the overexpression of its dominant/negative form completely abolishes cell death. Upon glucose supplementation, AMPK is not activated, confirming its role as fuel-sensing enzyme that positively responds to Cu(isaepy)(2)-mediated energetic impairment by committing cells to apoptosis. Overall, data obtained indicate that Cu(isaepy)(2) behaves as delocalized lipophilic cation and induces mitochondrial-sited reactive oxygen species production. This event results in mitochondrial dysfunction and ATP decrease, which in turn triggers AMPK-dependent apoptosis.
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Affiliation(s)
- Giuseppe Filomeni
- Department of Biology, University of Rome Tor Vergata, via della Ricerca Scientifica, Rome, Italy
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Bar EE, Chaudhry A, Lin A, Fan X, Schreck K, Matsui W, Piccirillo S, Vescovi AL, Dimeco F, Olivi A, Eberhart CG. Cyclopamine-mediated hedgehog pathway inhibition depletes stem-like cancer cells in glioblastoma. Stem Cells 2007; 25:2524-33. [PMID: 17628016 PMCID: PMC2610257 DOI: 10.1634/stemcells.2007-0166] [Citation(s) in RCA: 479] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Brain tumors can arise following deregulation of signaling pathways normally activated during brain development and may derive from neural stem cells. Given the requirement for Hedgehog in non-neoplastic stem cells, we investigated whether Hedgehog blockade could target the stem-like population in glioblastoma multiforme (GBM). We found that Gli1, a key Hedgehog pathway target, was highly expressed in 5 of 19 primary GBM and in 4 of 7 GBM cell lines. Shh ligand was expressed in some primary tumors, and in GBM-derived neurospheres, suggesting a potential mechanism for pathway activation. Hedgehog pathway blockade by cyclopamine caused a 40%-60% reduction in growth of adherent glioma lines highly expressing Gli1 but not in those lacking evidence of pathway activity. When GBM-derived neurospheres were treated with cyclopamine and then dissociated and seeded in media lacking the inhibitor, no new neurospheres formed, suggesting that the clonogenic cancer stem cells had been depleted. Consistent with this hypothesis, the stem-like fraction in gliomas marked by both aldehyde dehydrogenase activity and Hoechst dye excretion (side population) was significantly reduced or eliminated by cyclopamine. In contrast, we found that radiation treatment of our GBM neurospheres increased the percentage of these stem-like cells, suggesting that this standard therapy preferentially targets better-differentiated neoplastic cells. Most importantly, viable GBM cells injected intracranially following Hedgehog blockade were no longer able to form tumors in athymic mice, indicating that a cancer stem cell population critical for ongoing growth had been removed. Disclosure of potential conflicts of interest is found at the end of this article.
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Affiliation(s)
- Eli E. Bar
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Aneeka Chaudhry
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Alex Lin
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Xing Fan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Karisa Schreck
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - William Matsui
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Sara Piccirillo
- Department of Biotechnology and Biosciences, University of Milan Bicocca, Milan, Italy
| | - Angelo L. Vescovi
- Department of Biotechnology and Biosciences, University of Milan Bicocca, Milan, Italy
| | | | - Alessandro Olivi
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Charles G. Eberhart
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Aquilano K, Filomeni G, Baldelli S, Piccirillo S, De Martino A, Rotilio G, Ciriolo MR. Neuronal nitric oxide synthase protects neuroblastoma cells from oxidative stress mediated by garlic derivatives. J Neurochem 2007; 101:1327-37. [PMID: 17298386 DOI: 10.1111/j.1471-4159.2006.04431.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In this study, we further examined the effects of diallyl disulfide (DADS), one of the major components of oil-soluble garlic extracts (GE) and of raw water GE on SH-SY5Y and NSC34 neuronal cell lines. Both treatments with DADS and GE were able to induce growth arrest and apoptosis, and we observed an increased flux of reactive oxygen and nitrogen species as early signs of cytotoxicity. We demonstrated that the content of neuronal nitric oxide synthase (nNOS) increased as early as 1 h of treatment demonstrating to be a very early sensor of DADS and GE cytotoxicity. Treatments with L-nitropropyl-arginine, an inhibitor of nNOS, increased the rate of apoptosis whereas the overexpression of nNOS significantly reduced cell death by inhibiting DNA damage, protein oxidation, and the activation of the JNK/c-Jun apoptotic signaling cascade. Overall these results demonstrate that garlic derivatives may modulate nNOS and suggest an important contribution of nitric oxide in counteracting their reactive oxygen species-mediated cytotoxicity.
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Affiliation(s)
- Katia Aquilano
- Department of Biology, University of Rome Tor Vergata, Via della Ricerca Scientifica, Rome, Italy
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Giardini Guidoni A, Paladini A, Piccirillo S, Rondino F, Satta M, Speranza M. Modelling neurotransmitter functions: a laser spectroscopic study of (1S,2S)-N-methyl pseudoephedrine and its complexes with achiral and chiral molecules. Org Biomol Chem 2006; 4:2012-8. [PMID: 16688345 DOI: 10.1039/b602510b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Wavelength and mass resolved resonance-enhanced two photon ionization (R2PI) excitation spectra of (1S,2S)-N-methyl pseudoephedrine (MPE) and its complexes with several achiral and chiral solvent molecules, including water (W), methyl (R)-lactate (L(R)), methyl (S)-lactate (L(S)), (R)-2-butanol (B(R)), and (S)-2-butanol (B(S)), have been recorded after a supersonic molecular beam expansion and examined in the light of ab initio calculations. The spectral patterns of the selected complexes have been interpreted in terms of the specific hydrogen-bond interactions operating in the diastereomeric complexes, whose nature in turn depends on the structure and the configuration of the solvent molecule. The obtained results confirm the view that a representative neurotransmitter molecule, like MPE, "communicates" with the enantiomers of a chiral substrate through different, specific interactions. These findings can be regarded as a further contribution to modelling neurotransmitter functions in biological systems.
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Affiliation(s)
- A Giardini Guidoni
- Dipartimento di Chimica, Università di Roma La Sapienza, pl. A. Moro 5, I-00185, Roma, Italy
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Rossi M, Terranova M, Piccirillo S, Sessa V, Manno D. Meso- and nano-scale investigation of carbon fibers coated by nano-crystalline diamond. Chem Phys Lett 2005. [DOI: 10.1016/j.cplett.2004.12.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Giardini Guidoni A, Paladini A, Rondino F, Piccirillo S, Satta M, Speranza M. Chiral clusters in a supersonic beam: R2PI-TOF spectroscopy of diastereomeric carboxylic esters/(R)-(+)-1-phenyl-1-propanol complexes. Org Biomol Chem 2005; 3:3984-9. [PMID: 16240018 DOI: 10.1039/b511050e] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Wavelength and mass resolved resonance-enhanced two photon ionization (R2PI) excitation spectra of (R)-(+)-1-phenyl-1-propanol (P(R)) and its complexes with some chiral esters, i.e. methyl lactates (L(R) and L(S)), methyl 3-hydroxybutyrates (H(R) and H(S)), and methyl 2-chloropropionates (C(R) and C(S)), have been recorded after a supersonic molecular beam expansion and interpreted in the light of DFT calculations. The spectral features of the selected complexes were found to depend on the nature of hydrogen-bond interactions within the diasteromeric complexes, whose intensity in turn depends upon the structure and the configuration of the estereal moiety. The study further confirms resonant two-photon ionization spectroscopy, coupled with time-of-flight mass resolution (R2PI-TOF), as an excellent tool for gathering valuable information on the interactive forces in molecular clusters and for the enantiodiscrimination of chiral molecules in the gas phase.
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Piccirillo S, Satta M, Catone D, Scuderi D, Paladini A, Rondino F, Speranza M, Giardini Guidoni A. Mass resolved laser spectroscopy of micro-solvated R-(+)-1-phenyl-1-propanol: A chiral molecule of biological interest. Phys Chem Chem Phys 2004. [DOI: 10.1039/b316737b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Terranova M, Orlanducci S, Fazi E, Sessa V, Piccirillo S, Rossi M, Manno D, Serra A. Organization of single-walled nanotubes into macro-sized rectangularly shaped ribbons. Chem Phys Lett 2003. [DOI: 10.1016/j.cplett.2003.09.110] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Scuderi D, Paladini A, Satta M, Catone D, Rondino F, Tacconi M, Filippi A, Piccirillo S, Giardini Guidoni A, Speranza M. Chiral recognition of diols by complexation with (R)-(+)-1-phenyl-1-propanol: a R2PI approach in supersonic beam. Phys Chem Chem Phys 2003. [DOI: 10.1039/b308178h] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Scuderi D, Paladini A, Piccirillo S, Satta M, Catone D, Giardini A, Filippi A, Speranza M. Chiral discrimination of 2,3-butanediols by laser spectroscopy. Chem Commun (Camb) 2002:2438-9. [PMID: 12430479 DOI: 10.1039/b207494j] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The resonance enhanced two-photon ionization time-of-flight (R2PI-TOF) excitation spectra of supersonically expanded complexes of isomeric 2,3-butanediols with a suitable chromophore, i.e. R-(+)-1-phenyl-1-propanol, represent powerful means for structurally discriminating the diol moiety and for investigating the nature of the intra- and intermolecular interactions involved in the complexes.
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Affiliation(s)
- D Scuderi
- Dipartimento di Studi di Chimica e Tecnologia delle Sostanze Biologicamente Attive, Università di Roma La Sapienza, pl. A. Moro 5, I-00185 Roma, Italy
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Scuderi D, Paladini A, Satta M, Catone D, Filippi A, Piccirillo S, Speranza M, Giardini Guidoni A. Laser spectroscopy of 1,2,3,4-tetrahydro-1-naphthol·ROH (R = H, CH3) clustersPresented at the LANMAT 2001 Conference on the Interaction of Laser Radiation with Matter at Nanoscopic Scales: From Single Molecule Spectroscopy to Materials Processing, Venice, 3–6 October, 2001. Phys Chem Chem Phys 2002. [DOI: 10.1039/b201347a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Scuderi D, Paladini A, Satta M, Catone D, Piccirillo S, Speranza M, Guidoni AG. Chiral aggregates of indan-1-ol with secondary alcohols and water: Laser spectroscopy in supersonic beams. Phys Chem Chem Phys 2002. [DOI: 10.1039/b204909k] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Giardini Guidoni A, Piccirillo S, Scuderi D, Satta M, Di Palma TM, Speranza M, Filippi A, Paladini A. R2PI Study of intermolecular hydrogen bond in solvent-free chiral complexes. Chirality 2001; 13:727-30. [PMID: 11746810 DOI: 10.1002/chir.10010] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
One- and two-color, mass selected R2PI spectra of the S(1)<--S(0) transitions in the bare (+)-(R)-1-phenyl-1-ethanol (E(R)) and its complexes with different solvent molecules (solv) (-)-(R)-2-butanol (B(R)) or (+)-(S)-2-butanol (B(S)) and (-)-(R)-2-butylamine (A(R)) or (+)-(S)-2-butylamine (A(S)), have been recorded after a supersonic molecular beam expansion. The one-color R2PI excitation spectra of the diastereomeric complexes are characterized by significant shifts of their band origin relative to that of bare E(R). The extent and the direction of these spectral shifts are found to depend on the structure and the configuration of solv and are attributed to different short-range interactions in the ground and excited states of the complexes. In analogy with other diastereomeric complexes, the phenomenological binding energy of the homochiral cluster is found to be greater than that of the heterochiral one.
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Botti S, Terranova ML, Sessa V, Piccirillo S, Rossi M. Silicon quantum dots in diamond matrix: a new synthesis route. Appl Organomet Chem 2001. [DOI: 10.1002/aoc.158] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Abstract
One- and two-color, mass-selected R2PI spectra of the S1<--S0 transitions in the bare chiral chromophore R-(+)-1-phenyl-1-propanol (R) and its complexes with a variety of alcoholic solvent molecules (solv), namely methanol, ethanol, 1-propanol, 2-propanol, 1-butanol, S-(+)-2-butanol, R-(-)-2-butanol, 1-pentanol, S-(+)-2-pentanol, R-(-)-2-pentanol, and 3-pentanol, were recorded after a supersonic molecular beam expansion. Spectral analysis, coupled with theoretical calculations, indicate that several hydrogen-bonded [R.solv] conformers are present in the beam. The R2PI excitation spectra of [R.solv] are characterized by significant shifts of their band origin relative to that of bare R. The extent and direction of these spectral shifts depend on the structure and configuration of solv and are attributed to different short-range interactions in the ground and excited [R.solv] complexes. Measurement of the binding energies of [R.solv] in their neutral and ionic states points to a subtle balance between attractive (electrostatic and dispersive) and repulsive (steric) forces, which control the spectral features of the complexes and allow enantiomeric discrimination of chiral solv molecules.
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Affiliation(s)
- A Latini
- Dipartimento di Chimica, Universita degli Studi di Roma La Sapienza, Italy
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Satta M, Latini A, Piccirillo S, Di Palma T, Scuderi D, Speranza M, Giardini A. Energetics of monohydrated chiral R(+)-1-phenyl-1-propanol: supersonic beam experiments and density functional calculations. Chem Phys Lett 2000. [DOI: 10.1016/s0009-2614(99)01222-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Giardini Guidoni A, Piccirillo S, Scuderi D, Satta M, Di Palma TM, Speranza M. Chirality and intermolecular forces: studies using R2PI experiments in supersonic beams. Phys Chem Chem Phys 2000. [DOI: 10.1039/b004138f] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Terranova ML, Piccirillo S, Sessa V, Rossi M, Botti S. Microstructure and properties of nanocomposite diamond films obtained by a new CVD-based technique. ACTA ACUST UNITED AC 1999. [DOI: 10.1051/jp4:1999845] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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Piccirillo S, Coreno M, Bosman C, Giardini Guidoni A, Mele A, Palleschi A. Resonant two-photon ionization of van der Waals adducts of 4-fluorostyrene with monomethylamine and monoethylamine: intracluster chemical reactions. Chem Phys Lett 1995. [DOI: 10.1016/s0009-2614(95)01232-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Coreno M, Piccirillo S, Guidoni A, Mele A, Palleschi A, Bréchignac P, Parneix P. R2PI detection and spectroscopy of van der Waals complexes of 4-fluorostyrene with rare gases. Chem Phys Lett 1995. [DOI: 10.1016/0009-2614(95)00264-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Piccirillo S, Consalvo D, Coreno M, Giardini-Guidoni A, Douin S, Parneix P, Brechignac P. Isomeric structures, van der Waals frequencies and spectral shifts of cold 4-fluorostyrene-(argon)n clusters (n = 1 to 4). Chem Phys 1994. [DOI: 10.1016/0301-0104(94)00210-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Teghil R, Guidoni AG, Mele A, Piccirillo S, Coreno M, Marotta V, Di Palma TM. Pulsed laser induced ablation applied to epitaxial growth of semiconductor materials: Selenides and tellurides plume analysis. SURF INTERFACE ANAL 1994. [DOI: 10.1002/sia.740220140] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Consalvo D, Avoird AVD, Piccirillo S, Coreno M, Giardini‐Guidoni A, Mele A, Snels M. The intermolecular vibrations of Ar–styrene and Ar–4‐fluorostyrene complexes. J Chem Phys 1993. [DOI: 10.1063/1.465615] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Giardini-Guidoni A, Mele A, Piccirillo S, Coreno M, Snels M. Resonant twophoton ionization processes of van der Waals adducts: Spectroscopy and reactivity of styrenes clustered with various molecules. J CHEM SCI 1993. [DOI: 10.1007/bf03040848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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