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Cave DD, Buonaiuto S, Sainz B, Fantuz M, Mangini M, Carrer A, Di Domenico A, Iavazzo TT, Andolfi G, Cortina C, Sevillano M, Heeschen C, Colonna V, Corona M, Cucciardi A, Di Guida M, Batlle E, De Luca A, Lonardo E. LAMC2 marks a tumor-initiating cell population with an aggressive signature in pancreatic cancer. J Exp Clin Cancer Res 2022; 41:315. [PMID: 36289544 PMCID: PMC9609288 DOI: 10.1186/s13046-022-02516-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 10/09/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Tumor-initiating cells (TIC), also known as cancer stem cells, are considered a specific subpopulation of cells necessary for cancer initiation and metastasis; however, the mechanisms by which they acquire metastatic traits are not well understood. METHODS LAMC2 transcriptional levels were evaluated using publicly available transcriptome data sets, and LAMC2 immunohistochemistry was performed using a tissue microarray composed of PDAC and normal pancreas tissues. Silencing and tracing of LAMC2 was performed using lentiviral shRNA constructs and CRISPR/Cas9-mediated homologous recombination, respectively. The contribution of LAMC2 to PDAC tumorigenicity was explored in vitro by tumor cell invasion, migration, sphere-forming and organoids assays, and in vivo by tumor growth and metastatic assays. mRNA sequencing was performed to identify key cellular pathways upregulated in LAMC2 expressing cells. Metastatic spreading induced by LAMC2- expressing cells was blocked by pharmacological inhibition of transforming growth factor beta (TGF-β) signaling. RESULTS We report a LAMC2-expressing cell population, which is endowed with enhanced self-renewal capacity, and is sufficient for tumor initiation and differentiation, and drives metastasis. mRNA profiling of these cells indicates a prominent squamous signature, and differentially activated pathways critical for tumor growth and metastasis, including deregulation of the TGF-β signaling pathway. Treatment with Vactosertib, a new small molecule inhibitor of the TGF-β type I receptor (activin receptor-like kinase-5, ALK5), completely abrogated lung metastasis, primarily originating from LAMC2-expressing cells. CONCLUSIONS We have identified a highly metastatic subpopulation of TICs marked by LAMC2. Strategies aimed at targeting the LAMC2 population may be effective in reducing tumor aggressiveness in PDAC patients. Our results prompt further study of this TIC population in pancreatic cancer and exploration as a potential therapeutic target and/or biomarker.
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Affiliation(s)
- Donatella Delle Cave
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Silvia Buonaiuto
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Bruno Sainz
- grid.466793.90000 0004 1803 1972Department of Cancer Biology, Instituto de Investigaciones Biomedicas “Alberto Sols” (IIBM), CSIC-UAM, 28029 Madrid, Spain ,grid.420232.50000 0004 7643 3507Chronic Diseases and Cancer, Area 3-Instituto Ramon Y Cajal de Investigacion Sanitaria (IRYCIS), 28034 Madrid, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red, Área Cáncer, CIBERONC, ISCIII, 28029 Madrid, Spain
| | - Marco Fantuz
- grid.5608.b0000 0004 1757 3470Department of Biology, University of Padova, 35129 Padova, Italy ,grid.428736.cVeneto Institute of Molecular Medicine (VIMM), 35129 Padova, Italy
| | - Maria Mangini
- grid.5326.20000 0001 1940 4177Institute for Experimental Endocrinology and Oncology, “G. Salvatore” (IEOS), Second Unit, Consiglio Nazionale Delle Ricerche (CNR), 801310 Naples, Italy
| | - Alessandro Carrer
- grid.5608.b0000 0004 1757 3470Department of Biology, University of Padova, 35129 Padova, Italy ,grid.428736.cVeneto Institute of Molecular Medicine (VIMM), 35129 Padova, Italy
| | - Annalisa Di Domenico
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Tea Teresa Iavazzo
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Gennaro Andolfi
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Carme Cortina
- grid.7722.00000 0001 1811 6966Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 08028 Barcelona, Spain
| | - Marta Sevillano
- grid.7722.00000 0001 1811 6966Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 08028 Barcelona, Spain
| | - Christopher Heeschen
- grid.16821.3c0000 0004 0368 8293State Key Laboratory of Oncogenes and Related Genes, Center for Single-Cell Omics, School of Public Health, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Vincenza Colonna
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Marco Corona
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Antonio Cucciardi
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Martina Di Guida
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
| | - Eduard Batlle
- grid.7722.00000 0001 1811 6966Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), Baldiri Reixac 10, 08028 Barcelona, Spain ,grid.510933.d0000 0004 8339 0058Centro de Investigación Biomédica en Red de Cáncer (CIBERONC), 08028 Barcelona, Spain
| | - Annachiara De Luca
- grid.5326.20000 0001 1940 4177Institute for Experimental Endocrinology and Oncology, “G. Salvatore” (IEOS), Second Unit, Consiglio Nazionale Delle Ricerche (CNR), 801310 Naples, Italy
| | - Enza Lonardo
- grid.5326.20000 0001 1940 4177Institute of Genetics and Biophysics “A. Buzzati-Traverso”, National Research Council (CNR-IGB), 80131 Naples, Italy
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Cave DD, Di Guida M, Costa V, Sevillano M, Ferrante L, Heeschen C, Corona M, Cucciardi A, Lonardo E. TGF-β1 secreted by pancreatic stellate cells promotes stemness and tumourigenicity in pancreatic cancer cells through L1CAM downregulation. Oncogene 2020; 39:4271-4285. [PMID: 32291413 PMCID: PMC7239770 DOI: 10.1038/s41388-020-1289-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 03/23/2020] [Accepted: 03/27/2020] [Indexed: 02/08/2023]
Abstract
Pancreatic stellate cells (PSCs) secrete high levels of transforming growth factor-β1 (TGF-β1) that contributes to the development of pancreatic ductal adenocarcinoma (PDAC). TGF-β1 modulates the expression of L1 cell adhesion molecule (L1CAM), but its role in tumour progression still remains controversial. To clarify L1 function in PDAC and cellular phenotypes, we performed L1CAM cell sorting, silencing and overexpression in several primary pancreatic cancer cells. PSCs silenced for TGF-β1 were used for crosstalk experiments. We found that TGF-β1 secreted by PSCs negatively regulates L1CAM expression, through canonical TGF-β-Smad2/3 signalling, leading to a more aggressive PDAC phenotype. Cells with reduced expression of L1CAM harboured enhanced stemness potential and tumourigenicity. Inactivation of TGF-β1 signalling in PSCs strongly reduced the aggressiveness of PDAC cells. Our data provide functional proof and mechanistic insights for the tumour-suppressive function of L1CAM via reducing stemness. Rescuing L1CAM expression in cancer cells through targeting of TGF-β1 reverses stemness and bears the potential to improve the still miserable prognosis of PDAC patients.
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Affiliation(s)
- Donatella Delle Cave
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Martina Di Guida
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Valerio Costa
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Marta Sevillano
- Institute for Research in Biomedicine (IRB), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Luigi Ferrante
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | | | - Marco Corona
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Antonio Cucciardi
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy
| | - Enza Lonardo
- Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' (IGB), CNR, Via Pietro Castellino 111, 80131, Naples, Italy. .,Spanish National Cancer Research Centre, CNIO, Madrid, Spain.
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Cannavale A, Lucatelli P, Corona M, Nardis P, Basilico F, De Rubeis G, Santoni M, Catalano C, Bezzi M. Evolving concepts and management of endoleaks after endovascular aneurysm repair: where do we stand in 2019? Clin Radiol 2019; 75:169-178. [PMID: 31810539 DOI: 10.1016/j.crad.2019.10.023] [Citation(s) in RCA: 4] [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] [Received: 06/05/2019] [Accepted: 10/31/2019] [Indexed: 11/27/2022]
Abstract
In recent years, there has been tremendous progress in endovascular aneurysm repair (EVAR) techniques and devices. This process has seen a change in incidence, risk factors, and treatment of endoleaks as well as in follow-up protocols after EVAR. In particular, recent literature has highlighted new concepts in the evaluation and prevention/treatment of type I and II endoleak after standard EVAR. There is also recent evidence regarding new imaging protocols for follow-up after EVAR, which include magnetic resonance imaging and contrast-enhanced ultrasound. This comprehensive review aims to outline the most recent concepts on imaging follow-up, pathophysiology/risk factors, and management of endoleaks.
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Affiliation(s)
- A Cannavale
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy.
| | - P Lucatelli
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - M Corona
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - P Nardis
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - F Basilico
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - G De Rubeis
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
| | - M Santoni
- Department of Radiological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - C Catalano
- Department of Radiological Sciences, "Sapienza" University of Rome, Rome, Italy
| | - M Bezzi
- Vascular and Interventional Unit, Department of Radiological Sciences, Policlinico Umberto I, "Sapienza" University of Rome, Rome, Italy
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Johnson M, Lai J, Corona M, Lupas G. C-07 Global Precedence: Examining Contributing Effects of Age and Cognitive Functioning. Arch Clin Neuropsychol 2019. [DOI: 10.1093/arclin/acz034.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objective
Global precedence (GP) is an individual’s ability to readily identify global (gestalt) features when both global and local (internal) details are presented. Prior research shows that both age and neurodegenerative diseases, such as Alzheimer’s, affect GP. The goal of the current study is to examine differences in GP between individuals with early-onset Alzheimer’s disease (EOAD; before age 65) and healthy controls (HC).
Method
Fourteen EOAD patients and 6 HC’s recruited from Behavioral Neurology at an academic medical center were included in the current analysis. EOAD participants were diagnosed by clinical history, routine labs, neuroimaging, and neurological examination. Exclusion criteria included unstable medical conditions and history of severe head injury, psychotic disorder, or psychoactive substance use. All participants completed a Mini Mental Status Examination (MMSE) to assess overall cognitive functioning and a 4-item Navon's paradigm task (consisting of a larger letter whose shape is composed of smaller repeats of a different letter) to assess for GP.
Results
Linear regression analysis was performed, with the total score on Navon task as the dependent variable and age, MMSE score, and study group as predictor variables. Analysis yielded significant findings, suggesting a difference in GP performance between the two groups. However, coefficients suggested that while age did not contribute to the between-group difference, MMSE scores significantly accounted for our findings. In fact, when effects of MMSE scores were controlled, the between-group difference was no longer significant.
Conclusion
Findings suggest that individuals with EOAD perform worse on tasks of GP, which may be secondary to overall cognitive decline.
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Branchiccela B, Castelli L, Corona M, Díaz-Cetti S, Invernizzi C, Martínez de la Escalera G, Mendoza Y, Santos E, Silva C, Zunino P, Antúnez K. Impact of nutritional stress on the honeybee colony health. Sci Rep 2019; 9:10156. [PMID: 31300738 PMCID: PMC6626013 DOI: 10.1038/s41598-019-46453-9] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 06/20/2019] [Indexed: 11/09/2022] Open
Abstract
Honeybees Apis mellifera are important pollinators of wild plants and commercial crops. For more than a decade, high percentages of honeybee colony losses have been reported worldwide. Nutritional stress due to habitat depletion, infection by different pests and pathogens and pesticide exposure has been proposed as the major causes. In this study we analyzed how nutritional stress affects colony strength and health. Two groups of colonies were set in a Eucalyptus grandis plantation at the beginning of the flowering period (autumn), replicating a natural scenario with a nutritionally poor food source. While both groups of colonies had access to the pollen available in this plantation, one was supplemented with a polyfloral pollen patty during the entire flowering period. In the short-term, colonies under nutritional stress (which consumed mainly E. grandis pollen) showed higher infection level with Nosema spp. and lower brood and adult bee population, compared to supplemented colonies. On the other hand, these supplemented colonies showed higher infection level with RNA viruses although infection levels were low compared to countries were viral infections have negative impacts. Nutritional stress also had long-term colony effects, because bee population did not recover in spring, as in supplemented colonies did. In conclusion, nutritional stress and Nosema spp. infection had a severe impact on colony strength with consequences in both short and long-term.
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Affiliation(s)
- B Branchiccela
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - L Castelli
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - M Corona
- Bee Research Laboratory United Stated Department of Agriculture, United States of America, Center Road 306, CP 20,705, Beltsville, Maryland, United States of America
| | - S Díaz-Cetti
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - C Invernizzi
- Sección Etología, Instituto de Biología, Facultad de Ciencias, Iguá 4225, CP 11400, Montevideo, Uruguay
| | - G Martínez de la Escalera
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - Y Mendoza
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - E Santos
- Sección Etología, Instituto de Biología, Facultad de Ciencias, Iguá 4225, CP 11400, Montevideo, Uruguay
| | - C Silva
- Sección Apicultura, Instituto de Investigación Agropecuaria, Route 50 km 11, CP 39173, Colonia, Uruguay
| | - P Zunino
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay
| | - K Antúnez
- Departamento de Microbiología, Instituto de Investigaciones Biológicas Clemente Estable, Av. Italia 3318, CP 11,600, Montevideo, Uruguay.
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Rozzi A, Nappa M, Costa A, Spigone B, Falbo P, Di Nicola S, De Marco F, Corona M, Iannace A, Lanzetta G. Bladder-sparing trimodality approach for unfit for surgery and cisplatin treatment elderly patients with muscle-invasive bladder cancer (MIBC): results from a monocentric experience. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx423.008] [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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Rozzi A, Corona M, Falbo P, Spoto C, Iannace A, De Filippis L, Lanzetta G. Transdermal granisetron plus dexamethasone for the prevention of chemotherapy-induced nausea and vomiting (cinv) in patients with locally advanced head-neck squamous cell cancer (hnscc) treated with radiotherapy plus concomitant administration of cisplatin. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw345.44] [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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Lanzetta G, Corona M, Falbo P, Spoto C, Iannace A, De Filippis L, Rozzi A. Transdermal granisetron is effective in prevention of acute-delayed emesis in patients with glioblastoma multiforme (gbm) treated with temozolomide (tmz): results from a monocentric experience. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw345.54] [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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Procaccini C, Carbone F, Di Silvestre D, Brambilla F, De Rosa V, Galgani M, Faicchia D, Marone G, Tramontano D, Corona M, Alviggi C, Porcellini A, La Cava A, Mauri P, Matarese G. The Proteomic Landscape of Human Ex Vivo Regulatory and Conventional T Cells Reveals Specific Metabolic Requirements. Immunity 2016; 44:406-21. [PMID: 26885861 PMCID: PMC4760097 DOI: 10.1016/j.immuni.2016.01.028] [Citation(s) in RCA: 167] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 07/29/2015] [Accepted: 11/13/2015] [Indexed: 11/23/2022]
Abstract
Human CD4+CD25hiFoxp3+CD127− Treg and CD4+CD25−Foxp3− Tconv cell functions are governed by their metabolic requirements. Here we report a comprehensive comparative analysis between ex vivo human Treg and Tconv cells that comprises analyses of the proteomic networks in subcellular compartments. We identified a dominant proteomic signature at the metabolic level that primarily impacted the highly-tuned balance between glucose and fatty-acid oxidation in the two cell types. Ex vivo Treg cells were highly glycolytic while Tconv cells used predominantly fatty-acid oxidation (FAO). When cultured in vitro, Treg cells engaged both glycolysis and FAO to proliferate, while Tconv cell proliferation mainly relied on glucose metabolism. Our unbiased proteomic analysis provides a molecular picture of the impact of metabolism on ex vivo human Treg versus Tconv cell functions that might be relevant for therapeutic manipulations of these cells. Ex vivo human Treg cells are highly glycolytic and proliferating Ex vivo human Tconv cells use fatty-acid oxidation (FAO) and are non-proliferating In vitro proliferation of human Treg cells requires both glycolysis and FAO In vitro proliferation of human Tconv cells relies mainly on glycolysis
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Affiliation(s)
- Claudio Procaccini
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy
| | - Fortunata Carbone
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy
| | - Dario Di Silvestre
- Istituto di Tecnologie Biomediche, Consiglio Nazionale delle Ricerche (ITB-CNR), 20090 Segrate, Milano, Italy
| | - Francesca Brambilla
- Istituto di Tecnologie Biomediche, Consiglio Nazionale delle Ricerche (ITB-CNR), 20090 Segrate, Milano, Italy
| | - Veronica De Rosa
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy; Unità di NeuroImmunologia, IRCCS Fondazione Santa Lucia, 00143 Roma, Italy
| | - Mario Galgani
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy
| | - Deriggio Faicchia
- Dipartimento di Scienze Mediche Traslazionali e Centro Interdipartimentale di Ricerca in Scienze Immunologiche di Base Cliniche (CISI), Università di Napoli "Federico II," 80131 Napoli, Italy
| | - Gianni Marone
- Dipartimento di Scienze Mediche Traslazionali e Centro Interdipartimentale di Ricerca in Scienze Immunologiche di Base Cliniche (CISI), Università di Napoli "Federico II," 80131 Napoli, Italy
| | - Donatella Tramontano
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II," 80131 Napoli, Italy
| | - Marco Corona
- Istituto di Genetica e Biofisica "A. Buzzati-Traverso" Consiglio Nazionale delle Ricerche (IGB-CNR), 80131 Napoli, Italy
| | - Carlo Alviggi
- Dipartimento di Neuroscienze e Scienze Riproduttive e Odontostomatologiche, Università di Napoli "Federico II," 80131 Napoli, Italy
| | - Antonio Porcellini
- Dipartimento di Biologia, Complesso Universitario di Monte Sant'Angelo, Università di Napoli ''Federico II'', Napoli 80126, Italy
| | - Antonio La Cava
- Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Pierluigi Mauri
- Istituto di Tecnologie Biomediche, Consiglio Nazionale delle Ricerche (ITB-CNR), 20090 Segrate, Milano, Italy; Istituto di Scienze della Vita, Scuola Superiore Sant'Anna, 56127 Pisa, Italy
| | - Giuseppe Matarese
- Laboratorio di Immunologia, Istituto di Endocrinologia e Oncologia Sperimentale, Consiglio Nazionale delle Ricerche (IEOS-CNR), 80131 Napoli, Italy; Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università di Napoli "Federico II," 80131 Napoli, Italy.
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Corona M, Boatta E, Lucatelli P, Ricœur A, Salvatori FM, Zini C. Aortic pseudoaneurysm rupture secondary to pancreatitis: An endovascular approach. Diagn Interv Imaging 2015; 96:515-7. [PMID: 25704904 DOI: 10.1016/j.diii.2015.01.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 01/07/2015] [Accepted: 01/09/2015] [Indexed: 11/19/2022]
Affiliation(s)
- M Corona
- Vascular and interventional radiology unit, Radiology, Oncology and Pathology Department, "Sapienza", University of Rome, Viale Regina Elena 324, 00161 Roma, Italy
| | - E Boatta
- Vascular and interventional radiology unit, Radiology, Oncology and Pathology Department, "Sapienza", University of Rome, Viale Regina Elena 324, 00161 Roma, Italy
| | - P Lucatelli
- Vascular and interventional radiology unit, Radiology, Oncology and Pathology Department, "Sapienza", University of Rome, Viale Regina Elena 324, 00161 Roma, Italy
| | - A Ricœur
- Service de radiologie vasculaire et interventionnelle, CHU de Strasbourg, hôpital de Hautepierre, 1, avenue Molière, 67098 Strasbourg, France
| | - F M Salvatori
- Vascular and interventional radiology unit, Radiology, Oncology and Pathology Department, "Sapienza", University of Rome, Viale Regina Elena 324, 00161 Roma, Italy
| | - C Zini
- Vascular and interventional radiology unit, Radiology, Oncology and Pathology Department, "Sapienza", University of Rome, Viale Regina Elena 324, 00161 Roma, Italy.
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Niu D, Zheng H, Corona M, Lu Y, Chen X, Cao L, Sohr A, Hu F. Transcriptome comparison between inactivated and activated ovaries of the honey bee Apis mellifera L. Insect Mol Biol 2014; 23:668-681. [PMID: 25039886 DOI: 10.1111/imb.12114] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Ovarian activity not only influences fertility, but is also involved with the regulation of division of labour between reproductive and behavioural castes of female honey bees. In order to identify candidate genes associated with ovarian activity, we compared the gene expression patterns between inactivated and activated ovaries of queens and workers by means of high-throughput RNA-sequencing technology. A total of 1615 differentially expressed genes (DEGs) was detected between ovaries of virgin and mated queens, and more than 5300 DEGs were detected between inactivated and activated worker ovaries. Intersection analysis of DEGs amongst five libraries revealed that a similar set of genes (824) participated in the ovary activation of both queens and workers. A large number of these DEGs were predominantly related to cellular, cell and cell part, binding, biological regulation and metabolic processes. In addition, over 1000 DEGs were linked to more than 230 components of Kyoto Encyclopedia of Genes and Genomes pathways, including 25 signalling pathways. The reliability of the RNA-sequencing results was confirmed by means of quantitative real-time PCR. Our results provide new insights into the molecular mechanisms involved in ovary activation and reproductive division of labour.
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Affiliation(s)
- D Niu
- College of Animal Sciences, Zhejiang University, Hangzhou, China
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Fanelli F, Cannavale A, Corona M, Lucatelli P, Wlderk A, Salvatori FM. The "DEBELLUM"--lower limb multilevel treatment with drug eluting balloon--randomized trial: 1-year results. J Cardiovasc Surg (Torino) 2014; 55:207-216. [PMID: 24670828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AIM The aim of the present paper was to make a report of the 12-month clinical outcomes of the DEBELLUM (Drug-Eluting-Balloon-Evaluation-for-Lower-Limb- mUltilevel-treatMent) randomized trial. METHODS From September 2010 to March 2011, 50 patients were randomized between drug eluting balloon (DEB, N.=25) and conventional angioplasty balloon (PTA, N.=25). Patients were symptomatic for claudication and critical limb ischemia, with de novo stenosis or occlusion in the femoropopliteal (SFA) and infrapopliteal (BTK) region. Only in the SFA primary stenting was allowed and postdilatation performed with DEB or PTA depending on the assigned group. RESULTS One hundred and twenty-two lesions were treated: 92 (75.4%) SFA, 30 (24.6%) BTK. Twenty (40%) patients presented multilevel concomitant femoropopliteal and infra-popliteal lesions. Late lumen loss (LLL) was 0.64±0.9 mm in DEB group vs. 1.81±0.1 mm in the control group (P=0.01). In non-stented segment LLL was 0.63±0.9 mm (DEB) vs. 1.70±0.6 mm (PTA), P<0.01. In the stent subgroup was LLL 0.65±0.2 mm (DEB) vs. 1.91±0.3 mm (PTA), P<0.01. In the femoropopliteal region the overall LLL was 0.61±0.8 mm for DEB vs. 1.84±0.3 mm for PTA (P=0.02). BTK the overall LLL was 0.66±0.9 mm (DEB) vs. 1.69±0.5 mm (PTA) (P=0.03). The overall TLR was 12.2% for DEB and 35.3% for PTA (P<0.05). Amputation rate was 4% (DEB) vs. 12% (PTA), P=0.36. Thrombosis was 4% (DEB) vs. 8% (PTA), P≥0.05. Major adverse events 24% (DEB) vs. 60% (PTA), P<0.05. ABI improved more in the DEB group: 0.81±0.3 vs. 0.68±0.13 (P=0.02). Fontaine stage increased (from II b to I) 80% DEB vs. 56% PTA (P<0.05). CONCLUSION Results confirm and reinforce initial 6-month outcomes. In.Pact DEB balloons can be considered efficient to reduce restenosis rate.
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Affiliation(s)
- F Fanelli
- Unit of Vascular and Interventional Radiology Department of Radiological Sciences "Sapienza" University of Rome, Rome, Italy -
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Berritto D, Iacobellis F, Somma F, Corona M, Faggian A, Iacomino A, Feragalli B, Saba L, La Porta M, Grassi R. 7T mMR in the assessment of acute arterial mesenteric ischemia in a rat model. J BIOL REG HOMEOS AG 2013; 27:771-779. [PMID: 24152828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
To validate a rat model of acute arterial mesenteric ischemia correlating MRI patterns with macro and microscopic changes in the small bowel. Thirty Sprague-Dawley rats were assigned to two experimental groups (Group I and Group II) of fifteen rats each. Group I underwent surgical procedure of superior mesenteric artery (SMA) ligation, followed by macroscopic observation. In Group II, a loop was tied loosely around the SMA without occluding the vessel. Three days after surgery, the loop was tied by external tips to completely occlude the artery. 7T microMR (7Tesla microMR) was performed before and 8 hours after SMA occlusion. At predetermined time-points the histopathological examinations were performed in both of groups. Macroscopic monitoring revealed thinning of mesenteric vessels, hypotonic reflex ileus and chromatic change of some loops. 7T microMR sequences evidenced loop dilation with gas-fluid mixed stasis, intraperitoneal free fluid and bowel wall hyperintensity. There were no significant differences in the histological analysis between the two groups. The gap of three days from surgery, adopted in the Group 2, allowed to avoid signs of peritoneal and mesenteric irritation which could bias imaging patterns. MR succeeded to identify the signs of arterial mesenteric ischemia.
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Affiliation(s)
- D Berritto
- Institute of Radiology, Second University of Naples, Naples, Italy
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Somma F, Berritto D, Iacobellis F, Landi N, Cavaliere C, Corona M, Russo S, Di Mizio R, Rotondo A, Grassi R. 7T μMRI of mesenteric venous ischemia in a rat model: timing of the appearance of findings. Magn Reson Imaging 2012; 31:408-13. [PMID: 23102942 DOI: 10.1016/j.mri.2012.08.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Revised: 08/18/2012] [Accepted: 08/30/2012] [Indexed: 01/13/2023]
Abstract
OBJECTIVES The aim of this study is to analyze the chronological development of macroscopic, microscopic and magnetic resonance imaging (MRI) findings in a rat model of Superior Mesenteric Venous (SMV) ligation, and to evaluate the role of MRI in the diagnosis of mesenteric venous thrombosis. METHODS Thirty adult Sprague-Dawley rats were used and divided in two different groups that underwent a different surgical model and a different monitoring of ischemic damage. Group I underwent macroscopical and histological observation; Group II underwent 7T μMRI evaluation and histological analysis. RESULTS The first alterations occurred 30 min after SMV ligation and progressively worsened until the eighth hour. The morphological and MRI findings showed the same course. CONCLUSIONS This study provides a systematic evaluation of early anatomopathological and MRI findings following the SMV ligation. MRI allows to identify the early pathological findings of venous mesenteric ischemia and allows to correlate those to the histopathological features. Our data suggest a relevant role of MRI in the diagnostic management of mesenteric venous thrombosis, allowing to non-invasively identify and characterize the histopathologic findings. So, thanks to these skills, its future application in early diagnosis of human mesenteric venous ischemia is supposable.
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Affiliation(s)
- Francesco Somma
- Institute of Radiology, Second University of Naples, Piazza Miraglia 2, Naples, Italy
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Piazza O, Romano R, Scarpati G, Esposito C, Cavaglià E, Corona M. Minimally invasive Swine experimental model for the in vivo study of liver metabolism of drugs. Transl Med UniSa 2012; 4:62-5. [PMID: 23905064 PMCID: PMC3728795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE To develop a clinically relevant porcine model for the study of hepatic metabolism of drugs by means of hepatic vein catheterization. MATERIALS AND METHODS review of literature and elaboration of a hypothesis, design of an experimental method. RESULTS recent clinical studies were conducted by withdrawing cirrhotic patients' blood from right hepatic vein during hepatic vein pressure gradient measurements. Basing on our personal clinical experience and evaluation of research needs, an experimental model is proposed. CONCLUSIONS contemporary measurement of peripheral and hepatic concentration of drugs by peripheral vein and hepatic vein catheterization can be used to create a reliable and reproducible porcine model to study liver metabolism of drugs in vivo.
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Affiliation(s)
- O Piazza
- Corresponding author: Ornella Piazza ()
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Iacobellis F, Berritto D, Somma F, Cavaliere C, Corona M, Cozzolino S, Fulciniti F, Cappabianca S, Rotondo A, Grassi R. Magnetic resonance imaging: A new tool for diagnosis of acute ischemic colitis? World J Gastroenterol 2012; 18:1496-501. [PMID: 22509081 PMCID: PMC3319945 DOI: 10.3748/wjg.v18.i13.1496] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Revised: 07/07/2011] [Accepted: 07/14/2011] [Indexed: 02/06/2023] Open
Abstract
AIM: To define the evolution of ischemic lesions with 7T magnetic resonance imaging (7T-MRI) in an animal model of acute colonic ischemia.
METHODS: Adult Sprague-Dawley rats were divided into two groups. Group I underwent inferior mesenteric artery (IMA) ligation followed by macroscopic observations and histological analysis. In group II, 7T-MRI was performed before and after IMA ligation and followed by histological analysis.
RESULTS: Morphological alterations started to develop 1 h after IMA ligation, when pale areas became evident in the splenic flexure mesentery and progressively worsened up to 8 h thereafter, when the mesentery was less pale, and the splenic flexure loop appeared very dark. The 7T-MRI results reflected these alterations, showing a hyperintense signal in both the intraperitoneal space and the colonic loop wall 1 h after IMA ligation; the latter progressively increased to demonstrate a reduction in the colonic loop lumen at 6 h. Eight hours after IMA ligation, MRI showed a persistent colonic mural hyperintensity associated with a reduction in peritoneal free fluid. The 7T-MRI findings were correlated with histological alterations, varying from an attenuated epithelium with glandular apex lesions at 1 h to coagulative necrosis and loss of the surface epithelium detected 8 h after IMA ligation.
CONCLUSION: MRI may be used as a substitute for invasive procedures in diagnosing and grading acute ischemic colitis, allowing for the early identification of pathological findings.
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Fanelli F, Cannavale A, Corona M, Lucatelli P, Allegritti M, Passariello R. Abstract No. 136: Paclitaxel-coated balloon angioplasty for lower extremity revascularization: better way to fight restenosis? J Vasc Interv Radiol 2012. [DOI: 10.1016/j.jvir.2011.12.179] [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: 10/28/2022] Open
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Rozzi A, Nardoni C, Corona M, Falbo T, De Marco F, Grillenzoni L, Lanzetta G. 7144 POSTER Weekly Paclitaxel as Third-line Chemotherapy in Patients With Metastatic Transitional Cell Carcinoma of Urothelial Tract: Results of a Phase II Study. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72059-7] [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: 11/27/2022]
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Rozzi A, Nardoni C, Corona M, Restuccia MR, Falbo T, Lanzetta G. Weekly regimen of paclitaxel and carboplatin as first-line chemotherapy in elderly patients with stage IIIB-IV non small cell lung cancer (NSCLC): results of a phase II study. J Chemother 2011; 22:419-23. [PMID: 21303751 DOI: 10.1179/joc.2010.22.6.419] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Single-agent chemotherapy is the preferred treatment option in chemonaive elderly patients with advanced nonsmall-cell lung cancer (NSCLC). The role of combination chemotherapy in this setting is uncertain although several studies report satisfactory efficacy and safety using weekly paclitaxel and carboplatin (AUC=6) as first-line chemotherapy in elderly patients. It is still unclear which schedule of this regimen which could offer the best therapeutic index. The aim of this study was to evaluate the activity and tolerability of concomitant weekly administration of paclitaxel and carboplatin in untreated elderly patients with advanced NSCLC. From february 2005 to April 2008 36 consecutive elderly patients with advanced NSCLC were enrolled. Median age was 74 years (range, 70-83 years) and median ECOG PS was 1 (range, 0-1). patients received carboplatin (AUC=2) and paclitaxel 80 mg/m² on days 1,8 and 15 every 28 days. All patients were evaluable for efficacy and toxicity; a median of 4 cycles was administered. Twelve patients had partial response (33%; 95% C.I. 15,8-52,3%), 10 patients (28%) showed stable disease. The median time to progression (TTP) was 5.7 months (95% C.I. 3.1-8.6 months) with a median overall survival (MOS) of 9 months (95% C.I. 4.4-13.9 months). Toxicity was mild with no cases of febrile neutropenia; 5 patients (14%) developed grade 2 neuropathy. Our study confirms the substantial activity of weekly regimen of paclitaxel and carboplatin. Due to its favorable profile of toxicity this schedule could represent an interesting therapeutic option in selected chemonaive elderly patients with advanced NSCLC.
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Affiliation(s)
- A Rozzi
- Clinical Oncology Unit, Istituto Neurotraumatologico Italiano, Grottaferrata (Rome), Italy.
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Rozzi A, Mancuso AP, Recine F, Nardoni C, Corona M, Restuccia MR, Salerno M, Bordin F, Falbo T, Lanzetta G. Topoisomerase II and chemosensitivity for pegylated liposomal doxorubicin (pld) used in the third-line treatment of patients with metastatic bladder cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15055] [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: 11/20/2022] Open
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Fanelli F, Salvatori F, Corona M, Allegritti M, Cannavale A, Passariello R. Abstract No. 156: 12-year experience in the endovascular treatment of AAA: Lesson learned. J Vasc Interv Radiol 2011. [DOI: 10.1016/j.jvir.2011.01.172] [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: 11/24/2022] Open
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Scala G, Corona M, Maruccio L. Structural, Histochemical and Immunocytochemical Study of the Forestomach Mucosa in Domestic Ruminants. Anat Histol Embryol 2010; 40:47-54. [DOI: 10.1111/j.1439-0264.2010.01037.x] [Citation(s) in RCA: 4] [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: 11/28/2022]
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Fanelli F, Boatta E, Allegritti M, Corona M, Lucatelli P, Passariello R. Abstract No. 81: TIPS: 10-year experience in the covered stent-graft era. J Vasc Interv Radiol 2010. [DOI: 10.1016/j.jvir.2009.12.230] [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: 10/19/2022] Open
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Romigi A, Cervellino A, Marciani MG, Izzi F, Massoud R, Corona M, Torelli F, Zannino S, Uasone E, Placidi F. Cognitive and psychiatric effects of topiramate monotherapy in migraine treatment: an open study. Eur J Neurol 2008; 15:190-5. [PMID: 18217888 DOI: 10.1111/j.1468-1331.2007.02033.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Few data are available on cognitive and psychiatric effects of topiramate (TPM) monotherapy in migraine. Twenty patients affected by migraine were treated with TPM monotherapy. At the same time, twenty control subjects were selected. A comprehensive neuropsychological and behavioural battery of tests were performed at baseline (T0), at titration (T1) and in maintenance period (T2). Topiramate serum levels were also investigated at T1 and T2. On comparison with the control group, no cognitive and psychiatric differences were detected at baseline. A significant reduction of word fluency score (P < 0.05) was evident after TPM treatment, both at T1 and T2. No patient developed psychiatric adverse events. TPM induced an impairment of verbal fluency and no psychiatric adverse events, demonstrating selective negative cognitive profile in migraine therapy. Slow titration, low doses, lack of previous psychiatric disorders and/or familial history may explain our data.
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Affiliation(s)
- A Romigi
- Servizio di Neurofisiopatologia, Centro di Medicina del Sonno, Policlinico Tor Vergata, University of Rome 'Tor Vergata', Rome, Italy, and Fondazione Santa Lucia, Rome, Italy.
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Scala G, Corona M, Pavone LM, Pelagalli A, De girolamo P, Staiano N. Structural and Functional Features of Choroid Epithelium from Buffalo Brain. Anat Rec (Hoboken) 2007; 290:1399-412. [DOI: 10.1002/ar.20603] [Citation(s) in RCA: 9] [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: 12/25/2022]
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Abstract
Antioxidant enzymes perform a variety of vital functions including the reduction of life-shortening oxidative damage. We used the honey bee genome sequence to identify the major components of the honey bee antioxidant system. A comparative analysis of honey bee with Drosophila melanogaster and Anopheles gambiae shows that although the basic components of the antioxidant system are conserved, there are important species differences in the number of paralogs. These include the duplication of thioredoxin reductase and the expansion of the thioredoxin family in fly; lack of expansion of the Theta, Delta and Omega GST classes in bee and no expansion of the Sigma class in dipteran species. The differential expansion of antioxidant gene families among honey bees and dipteran species might reflect the marked differences in life history and ecological niches between social and solitary species.
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Affiliation(s)
- M Corona
- Department of Entomology, University of Illinois at Urbana-Champaign, USA.
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Fanelli F, Salvatori FM, Corona M, Bruni A, Pucci A, Boatta E, Dominelli V, Conchiglia A, Passariello R. Stent graft in TIPS: technical and procedural aspects. Radiol Med 2006; 111:709-23. [PMID: 16791461 DOI: 10.1007/s11547-006-0068-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2005] [Accepted: 01/27/2006] [Indexed: 11/30/2022]
Abstract
Transjugular intrahepatic portosystemic shunt (TIPS) is a nonoperative therapeutic option for the management of portal hypertension, variceal bleeding, recurrent ascites, Budd-Chiari syndrome. In view of the many issues surrounding the use of TIPS, in 1994 the US National Digestive Diseases Advisory Board convened a scientific conference to review the current data available and to establish the indications and controindications for this procedure. However there are still unsolved problems especially short primary patency of the shunt due to intimal hyperplasia, which causes a reduction of the shunt lumen thus favoring a return of the portal hypertension with recurrent variceal bleeding. Several study were performed in the last years to evaluate the efficacy of covered stent in order to reduce shunt disfunction secondary to intimal hyperplasia. PTFE seems to be more efficient in the prevention of restenoses. In our experience more then 100 patients were treated with the Viatorr stent-graft. After a follow-up ranging from 1 to 50 months we reported a 1- year primary patency rate of 83.8%. However the use of the stentgraft is correlate with a high rate of hepatic hencefalopathy (46.6 %). In case of hepatic hencefalopathy refractory to the conventional medical therapy, TIPS reduction should be performed.
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Affiliation(s)
- F Fanelli
- Dipartimento di Scienze Radiologiche, Università di Roma La Sapienza, Viale Regina Elena 324, I-00161, Rome, Italy.
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Scala G, Corona M, Perrella A, de Girolamo P, Vittoria A, Scala F, Pelagalli GV. The innervation of the fetal buffalo tongue. Vet Res Commun 2005; 29 Suppl 2:203-6. [PMID: 16244956 DOI: 10.1007/s11259-005-0043-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- G Scala
- Department of Strutture, funzioni e tecnologie biologiche, University of Naples FEDERICO II, Italy.
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Ciaramella P, Corona M, Ambrosio R, Consalvo F, Persechino A. Haematological profile on non-lactating mediterranean buffaloes (bubalus bubalis) ranging in age from 24 months to 14 years. Res Vet Sci 2005; 79:77-80. [PMID: 15894028 DOI: 10.1016/j.rvsc.2004.11.004] [Citation(s) in RCA: 15] [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] [Received: 08/12/2003] [Revised: 10/28/2004] [Accepted: 11/10/2004] [Indexed: 11/28/2022]
Abstract
Haematological studies were performed on 100 clinically normal non-lactating Mediterranean buffalo species ranging in age from 24 months to 14 years, to determinate the range of normal haematological values for this ruminant species. The animals were divided in 5 groups according to age: Group I, 2-3 years old which had never calved, Group II, 3-4 years old (primipara buffaloes), Group III, 5-7 years old, Group IV 8-10 years old and Group V over 10 years of age. All the haematological values obtained were comparable with the normal values found in adult cattle, and similar to those reported in Indian water buffalo species. The heifer buffalo showed an higher values for packed cell volume (PCV) compared with the older animals, but lower values for mean corpuscular haemoglobin concentration (MCHC) and mean corpuscular haemoglobin (MCH) (P 0.01). In animals above 8 years of age, the white cell count was lower with a significant reduction in absolute values of lymphocytes (P 0.01). Higher absolute values of eosinophils levels was found in the group V (P 0.01).
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Affiliation(s)
- P Ciaramella
- Department of Veterinary Clinical Science, Section of Internal Medicine, University of Naples, Federico II, Via Delpino 1, 80137 Napoli, Italy.
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Ciaramella P, Pelagalli A, Cortese L, Pero ME, Corona M, Lombardi P, Avallone L, Persechino A. Altered platelet aggregation and coagulation disorders related to clinical findings in 30 dogs naturally infected by Leishmania infantum. Vet J 2005; 169:465-7. [PMID: 15848791 DOI: 10.1016/j.tvjl.2004.03.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/15/2004] [Indexed: 10/26/2022]
Affiliation(s)
- P Ciaramella
- Department of Veterinary Clinical Science, Section of Internal Medicine, University of Naples, Federico II, Via Delpino 1, 80137 Napoli, Italy.
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Giuliani A, Demoro M, Corona M, Di Bari M, Ricciardulli T, Galati G, Ciardi A. Synchronous colon and gastric advanced carcinomas. J Exp Clin Cancer Res 2005; 24:155-8. [PMID: 15943046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
An unusual case of advanced synchronous colon and gastric carcinoma is described. A 36 year old female was admitted to our Department with a stenosing right colon cancer diagnosed at endoscopy which was performed for lower crampy abdominal pain and gross blood in the stool. Multiple colon polyps, distal to the tumor, were also detected. On preoperative abdominal computed tomography, a stenosing right colon cancer, without evidence of abdominal diffusion, was confirmed. At laparotomy, in addition to colon cancer, an antral gastric cancer was incidentally found. En bloc hemigastrectomy and subtotal colectomy were performed. Digestive continuity was restored by gastrojejunal and ileosigmoid anastomoses. At histology, a poorly differentiated gastric adenocarcinoma with signet ring-cell component (pT2, pN0; stage IB) and a moderately differentiated colon adenocarcinoma with a tubulovillous component (pT3, pN1; stage III, Stage Dukes C) were revealed. Both tumors showed a low expression of p53 and c-erb2 oncoproteins. No genetic defect was identified in the APC and MMR genes. The patient is alive, without recurrence, two years after the operation.
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Affiliation(s)
- A Giuliani
- Dept. of Surgery Pietro Valdoni La Sapienza University, Rome, Italy.
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Abstract
AIMS To characterize the bioemulsifier produced by a nonfluorescent strain of Pseudomonas putida isolated from a polluted sediment and to determine the influence of pH, temperature, media composition, and carbon and nitrogen source on growth and emulsifying activity. METHODS AND RESULTS Different indexes were employed to determine the emulsifying properties of culture supernatants of P. putida ML2 in defined and complex media. Surface tension of cell-free supernatants was measured. Purification and chemical analysis of the emulsifier was performed. Confirmed results indicate that a polysaccharide with hexasaccharide repeating units is responsible for the emulsifying activity in a mineral medium with glucose as sole carbon source. Moreover, an emulsifier is produced when growing on naphthalene. CONCLUSIONS Culture media composition influences the amount and the properties of the emulsifier produced by this P. putida strain. Under nitrogen limiting conditions, a polysaccharide is responsible for the emulsifying activity in defined mineral media. In complex nitrogen rich medium, a different kind of emulsifier is produced. The exopolymer may contribute to hydrocarbons solubilization. SIGNIFICANCE AND IMPACT OF THE STUDY This is the first exopolysaccharide with emulsifying properties produced by a Pseudomonas strain reported to the present. Also chemical composition is significantly different from previous reports. This strain has potential use in bioremediation and the purified polysaccharide may be used in food and cosmetic industry. Moreover, the production of the exopolymer may play a role on biofilm formation.
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Affiliation(s)
- M Bonilla
- Department of Microbiology, School of Chemistry, Universidad de la Republica, Montevideo, Uruguay
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Ciaramella P, Corona M, Cortese L, Piantedosi D, Santoro D, Di Loria A, Rigato R. Seroprevalence of Neospora spp. in asymptomatic horses in Italy. Vet Parasitol 2004; 123:11-5. [PMID: 15265566 DOI: 10.1016/j.vetpar.2004.05.022] [Citation(s) in RCA: 24] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2003] [Revised: 04/26/2004] [Accepted: 05/06/2004] [Indexed: 11/27/2022]
Abstract
One hundred and fifty horses from Italy were tested for serum antibodies to Neospora caninum by indirect fluorescence antibody test (IFAT). Antibodies were present in 42 horses (28%). The positive titres were: 1:50 (16/150-10.5%), 1:100 (26/150-17%), 1:200 (8/150-5.3%) and 1:800 (1/150-0.6%). No neurological anomalies were observed in the seropositive horses. This is the first serologic survey for Neospora spp. antibodies performed on horses born and raised in Italy.
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Affiliation(s)
- Paolo Ciaramella
- Department of Veterinary Clinical Science, Section of Internal Medicine, University of Naples, Via Delpino 1 80137, Napoli, Italy.
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Pelagalli A, Ciaramella P, Lombardi P, Pero ME, Cortese L, Corona M, Oliva G, Avallone L. Evaluation of adenosine 5'-diphosphate (ADP)- and collagen-induced platelet aggregation in canine leishmaniasis. J Comp Pathol 2004; 130:124-9. [PMID: 15003469 DOI: 10.1016/j.jcpa.2003.09.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2003] [Accepted: 09/26/2003] [Indexed: 11/29/2022]
Abstract
Leishmania-infected dogs, which represent an important reservoir of infection in many parts of the world, frequently suffer from haematological disorders, including thrombocytopenia. In this study, the ability of platelets from healthy (control) dogs (n = 11) and from dogs with naturally acquired clinical leishmaniasis (n = 24) to aggregate in the presence of two different agonists (adenosine 5'-diphosphate [ADP] and collagen) was assayed. Haematological parameters examined consisted of the platelet count, prothrombin time, activated partial thromboplastin time (aPTT), fibrinogen concentration and D-dimer concentration. In dogs with leishmaniasis, a significant decrease in ADP- and collagen-induced platelet aggregation was observed. Compared with platelets from the control dogs, those from leishmania-infected dogs showed a higher sensitivity to collagen, as demonstrated by a reduction in platelet aggregation of up to 20.4%, and a significant (P < 0.0001) difference for all the doses tested. With ADP the reduction was up to 10.4%, the difference reaching a significant level of P < 0.0001 only at the maximum dose used. The nature of this response, which was not accompanied by any clinical signs of bleeding other than an increase in aPTT, emphasizes the role of platelets in the parasite-host cell interaction.
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Affiliation(s)
- A Pelagalli
- Dipartimento di Strutture, Funzioni e Tecnologie Biologiche, University of Napoli, Federico II, 80137 Napoli, Italy
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Ciaramella P, Cortese L, Corona M, Ambrosio R, Di Loria A, Persechino A. Plasma thrombomodulin levels in dogs naturally infected with Leishmania infantum. Vet Res Commun 2004; 28 Suppl 1:327-30. [PMID: 15372989 DOI: 10.1023/b:verc.0000045438.09357.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- P Ciaramella
- Department of Veterinary Clinical Science--Section of Internal Medicine--University of Naples Federico II, via Delpino, 1--80137 Naples, Italy.
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36
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D'Suze G, Sevcik C, Corona M, Zamudio FZ, Batista CVF, Coronas FI, Possani LD. Ardiscretin a novel arthropod-selective toxin from Tityus discrepans scorpion venom. Toxicon 2004; 43:263-72. [PMID: 15033324 DOI: 10.1016/j.toxicon.2003.12.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2003] [Accepted: 12/09/2003] [Indexed: 11/24/2022]
Abstract
A new arthropod selective toxin was purified from the venom of the Venezuelan scorpion Tityus discrepans, and its amino acid sequence, cDNA clone and biological activity are reported here. The amino acid sequence of this peptide, named ardiscretin (from arthropod toxin of T. discrepans) was completed by Edman degradation and mass spectrometry. It is a single polypeptide composed by 61 amino acids with an amidated cysteine residue at the C-terminal end, closely packed by four disulfide bridges. The atomic mass unit (a.m.u.) experimentally determined was 7103.8 a.m.u. This peptide was shown to be specific for invertebrates (crickets, triatomides, crabs and squids), but non-toxic to mice, at the dose assayed. Ardiscretin inhibits the Na(+)-currents of squid giant axons in an apparent irreversible manner, whose inhibitory effect is reached at 30 microM toxin concentration. Sequence comparison showed that it is phylogenetically closely related to insect-specific scorpion toxins. Ardiscretin produced a small depolarization and induced repetitive firing in squid axons resembling those of DDT [1,1'(p-chlorobenzyl)2-tricloretane] in its ability to slow down action potential, to induce repetitive firing, and in that the concentration required for any effect in squid axon is rather high.
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Affiliation(s)
- G D'Suze
- Laboratory of Cellular Neuropharmacology, Biochemistry and Biophysics Center, Inst. venezolano de Inves. Cient., Apartado 21827, Caracas 1020-A, Venezuela.
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37
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Giuliani A, Caporale A, Corona M, Di Bari M, Demoro M, Ricciardulli T, Gozzo P, Galati G, Tocchi A. Lymphadenectomy in gastric cancer: influence on prognosis of lymph node count. J Exp Clin Cancer Res 2004; 23:215-24. [PMID: 15354405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
To better understand the role of the number of lymph nodes retrieved on long-term outcome of gastric cancer treatment, 154 patients who had undergone curative resection, with dissection of >15 nodes were retrospectively studied. Dissection of perigastric and extraperigastric lymph nodes, defined as 'extended' (>26 nodes dissected) in 39 cases and 'limited' (< or = 26 nodes dissected) in 115 cases, was performed. A total of 3479 lymph nodes (mean 22.6 per specimen), were dissected and of these 721 showed metastases. A mean of 8.1 lymph node metastases, per metastatic case, was found. Regression analysis showed no independent factor associated with the extent of lymphadenectomy. Depth of wall invasion (p=0.000) and histological growth pattern (p=0.044) were independently associated with the number of lymph nodes involved (pN0, pN1 1-7, pN2 >7). The cumulative 5-year survival rate was 47% in patients without lymph node metastases; 29% in those with 1-7 nodes involved and 17% in those with >8 nodes involved (p=0.002). Receiver operating characteristic (ROC) curve analysis, in 65 nodenegative cancer cases, demonstrated an area under the curve for vital status (alive or dead) of 0.602 (95% CI: 0.473 - 0.721). All node-negative cases with a number equivalent to or exceeding the cutoff point of 23 nodes were alive. ROC analysis showed 11 to be the cutoff number of metastasized lymph nodes in correlation with vital status. Almost all those patients in whom the number of positive nodes was equivalent to, or exceeded the cutoff point had died (area under the ROC curve 0.633; 95% CI: 0.524 - 0.733). ROC analysis showed that the cutoff lymph node ratio, in relation to vital status, was 0.33. The majority of patients at or above this cutoff point had died (area under ROC curve 0.682; 95% CI: 0.574 - 0.776). Multivariate survival analysis showed that lymph node ratio was the only independent prognostic factor (p=0.001). The present findings suggest that, in lymphadenectomy with at least 15 nodes, the number and status of regional nodes dissected, irrespective of the location, provide reliable prognostic information on curatively resected gastric carcinomas.
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Affiliation(s)
- A Giuliani
- Dept of Surgery Pietro Valdoni, University La Sapienza, Rome, Italy.
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38
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Corona M, Ciaramella P, Pelagalli A, Cortese L, Pero ME, Santoro D, Lombardi P. Haemostatic Disorders in Dogs Naturally Infected by Leishmania infantum. Vet Res Commun 2004; 28 Suppl 1:331-4. [PMID: 15372990 DOI: 10.1023/b:verc.0000045439.46994.1f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- M Corona
- Department of Veterinary Clinical Science--Section of Internal Medicine, University of Naples, Italy
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Giuliani A, Caporale A, Di Bari M, Demoro M, Gozzo P, Corona M, Miccini M, Ricciardulli T, Tocchi A. Maximum gastric cancer diameter as a prognostic indicator: univariate and multivariate analysis. J Exp Clin Cancer Res 2003; 22:531-8. [PMID: 15053293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
It was suggested that there are no stronger prognostic factors in gastric cancer than nodal involvement or depth of wall invasion. The present paper evaluated the influence of maximum tumor diameter (MTD) value, measured on fixed resected specimens, on the extent of disease progression and the outcome in gastric cancer patients. Clinicopathological data were retrospectively retrieved from records of 122 patients who underwent curative gastrectomy. The patients' MTD values were grouped as follows: MTD1, up to 26 mm; MTD2, between 26 and 50 mm; and MTD3, over 50 mm. The three groups evidenced significant differences with regard to 5 year survival (MTD1: 54%, MTD2: 31%, MTD3: 20%; p = 0.00027), furthermore they were significantly different with respect to the type of gastrectomy (p = 0.021), depth wall invasion (p = 0.000), lymphatic microinvasion (p = 0.014), perineural microinvasion (p = 0.017), stromal reaction (p = 0.025), and stage (p = 0.035). ROC curve analysis individuated a best accurate MTD threshold value for nodal involvement of 32 mm (sensitivity = 56.6%; specificity = 60.9%; positive predictive value = 52.6%; negative predictive value = 64.6%). The logistic regression analysis suggested that the depth of wall invasion was the only independent variable associated with MTD value (p = 0.0005). Multivariate analysis showed that independent prognostic risk factors were sex (p < 0.0025), number of involved nodes (p < 0.001) and MTD (p < 0.001). In conclusion, the maximum tumor diameter value of gastric cancer may be a factor with greater prognostic implications than previously believed.
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Affiliation(s)
- A Giuliani
- Dept. of Surgery Pietro Valdoni, University La Sapienza, Rome, Italy.
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40
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Giuliani A, Spada S, Corona M, Demoro M, Di Bari M, Ricciardulli T, Galati G, Caporale A, Tocchi A, Angelico F. Cancer precursor lesions in intact stomach Helicobacter pylori gastritis and in resected stomach gastritis. J Exp Clin Cancer Res 2003; 22:371-8. [PMID: 14582693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
Hemigastrectomy for benign disease and Helicobacter pylori infection are risk conditions for the development of gastric cancer. Aim of the study was to compare gastric histology and precursor lesions of malignancy in these two conditions. The hemigastrectomy group included 351 consecutively endoscoped subjects operated for gastroduodenal benign disease. Six to ten biopsy specimens were routinely taken from the residual gastric mucosa. The intact stomach group included 2097 consecutively endoscoped symptomatic subjects, who did not receive eradication therapy against H. pylori. The histological findings were classified as normal mucosa (NM), chronic non atrophic gastritis (CNAG), chronic atrophic gastritis (CAG), intestinal metaplasia (IM) and dysplasia (DYS). One thousand and three intact stomachs were H. pylori negative, and 1094 showed H. pylori colonization. The age over fifty was a significant risk factor for the occurrence of IM (OR 2.52, P < or = 0.001) and DYS (OR 3.46, P < or = 0.001), while Hp-positivity was a risk factor for CNAG (OR 1.81, P < or = 0.001) and CAG (OR 3.88, P < or = 0.001). Gastroresection was associated to higher risk for CNAG (OR 1.53, P < or = 0.001) and DYS (OR 4.31, P < or = 0.001) and to a lower risk of CAG (OR 0.49, P < or = 0.001). Both in males and females the risk for CNAG was significantly higher in Hp-positive (males OR 1.92, P=0.000; females OR 1.70, P=0.000) and gastrectomized subjects (males OR 2.06, P=0.000; females OR 2.43, P=0.000). Gastrectomized males, furthermore, showed an increased risk for DYS (OR 5.82, P=0.000). The aged Hp-negative and Hp-positive subjects evidenced a significant risk for IM (respectively OR's 3.42, P=0.000 and 4.85, P=0.000); the risk for DYS was significant in aged Hp-negative subjects (OR 4.09 P < or = 0.020). The Hp-positive individuals evidenced a significant risk for metaplastic mucosal changes (OR 38.17, P=0.000). Subjects aged over forty at the time of surgery and those with a longer postoperative follow up endoscopy presented an increased risk for CNAG of the residual mucosa (respectively OR's 2.75, P=0.000 and 5.25, P=0.000). CNAG and IM were the most frequently observed mucosal lesions both in subjects operated for duodenal and gastric ulcer (respectively OR's 4.02, P=0.000 and 3.00, P=0.000). Our data support that hemigastrectomy for benign disease and H. pylori infection may induce an increased incidence for histological precursor lesions for gastric malignancy and suggest that carcinogenesis in a resected stomach may be different from that in the intact stomach.
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Affiliation(s)
- A Giuliani
- Dept. of Surgery Pietro Valdoni, University La Sapienza, Rome, Italy
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41
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Corona M, Valdez-Cruz NA, Merino E, Zurita M, Possani LD. Genes and peptides from the scorpion Centruroides sculpturatus Ewing, that recognize Na(+)-channels. Toxicon 2001; 39:1893-8. [PMID: 11600153 DOI: 10.1016/s0041-0101(01)00174-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [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: 10/18/2022]
Abstract
Sixteen different genes were cloned from the venomous glands of Centruroides sculpturatus Ewing using RNA extracted from scorpions collected in Tucson, Arizona. Based on the amino acid sequence similarities of the proteins coded by these genes, all together there are 22 different structural components in this venom, thought to be specific for Na(+)-channels. The genes reported contain signal peptides with 19 amino acid residues followed by mature peptides of 63-66 amino acid residues in length. One of them correspond to toxin I (CsEI), a known scorpion toxin specific for Na(+)-channels. Four different genes are almost identical to variant 1 (Csv1), presenting only one amino acid change from the original protein. For variant 2 (Csv2) four related genes were found, with only one amino acid change in their primary sequences. Another gene resembles to variant 3 (Csv3, the best known Centruroides sculpturatus toxin), with only three amino acid changes in their primary sequences. Additionally, two genes show variations only on the nucleotide sequence at level of the signal peptides, and several genes clearly show sequences that suggest post-transcriptional modifications, during the maturation process. A phylogenetic tree was generated with the primary structures available and three main divergent branches were found.
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Affiliation(s)
- M Corona
- Institute of Biotechnology, National Autonomous University of Mexico, Avenida Universidad, 2001 Apartado Postal 510-3, Cuernavaca 62210, Mexico
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42
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Scala G, Mirabella N, Corona M, Pelagalli GV. Morphostructural characteristics of the vallate papillae in Bos taurus. Ital J Anat Embryol 2001; 100 Suppl 1:359-65. [PMID: 11322311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
The Morpho-structural characteristics of the vallate papillae of the bovine tongue were studied utilizing LM, SEM and TEM techniques. In the bovine, the vallate papillae are numerous and different in size. They have a prominent vallum papillae which surrounds a deep sulcus papillae. The sulcus has many elongated taste buds on its inner wall. Nervous fibers enter the taste bud and sometimes have rosary shaped axons. The gustative sensitivity of these animals may be instrumental, in their choice of food and avoidance of noxious plants.
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Affiliation(s)
- G Scala
- Dipartimenti di Strutture, Funzioni e Tecnologie Biologiche e Scienze Zootecniche, Università di Napoli Federico II, Italia
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43
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Baena N, Guitart M, Ferreres JC, Gabau E, Corona M, Mellado F, Egozcue J, Caballín MR. Fetal and placenta chromosome constitution in 237 pregnancy losses. Ann Genet 2001; 44:83-8. [PMID: 11522246 DOI: 10.1016/s0003-3995(01)01042-5] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The aim of the study was to carry out cytogenetic analyses in pregnancy losses. Samples of cartilage and placenta tissue were obtained prospectively from 237 pregnancy losses of more than 16 weeks of gestation (130 stillbirths, 97 induced abortions and 10 early neonatal deaths). Cartilage culture was performed in 222 samples and placental culture was initiated in 224. The overall culture success rate was 83.5%, 72.3% in stillbirths, 97% in induced abortions and 100% in early neonatal death. An abnormal karyotype was detected in 52 cases: 6.9% in stillbirths, 43.6% in induced abortions and 20% in early neonatal deaths. The rate of discrepancy between the prenatal cytogenetic results in amniotic fluid and the post-termination karyotype was 3%. The tissue of choice for cytogenetic analysis was cartilage in induced abortions and early neonatal death, and placenta in stillbirth. The majority of cases had a chromosome abnormality: multiple congenital anomalies in 74.6%, and a single major anomaly in 9.7%.
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Affiliation(s)
- N Baena
- Service of Genetics' Laboratory, Corporació Sanitària Parc Taullí, Laboratori Genètica, Parc Taulí, s/n, 08208, Sabadell, Spain
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44
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Cortesi E, Ramponi S, Corona M, Moscetti L, Grifalchi F, Oliva A, Lembo A, Gasperoni S, Padovani A. Decreased myelotoxicity of gemcitabine and cisplatin in advanced non-small cell lung cancer (NSCLC) with cisplatin infusion on day 15. Lung Cancer 2001; 31:271-6. [PMID: 11165407 DOI: 10.1016/s0169-5002(00)00198-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [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: 11/28/2022]
Abstract
In a multicenter phase II Italian trial that used a 28-day dosing schedule of gemcitabine on days 1, 8, and 15 and cisplatin on day 2, thrombocytopenia and neutropenia were the main dose-limiting toxicities observed. The aim of the present study was to determine whether using 15-day cisplatin in lieu of the standard 2-day schedule in combination with weekly gemcitabine would decrease expected myelotoxicities, particularly thrombocytopenia. Fifty-one patients with advanced non-small cell lung cancer (NSCLC), a median age of 62 years (range 31-76) and baseline Eastern Cooperative Oncology Group (ECOG) performance status scores of 0-1, were enrolled. Twenty-four patients had stage IIIA-B disease and 27 had stage IV. Patients received gemcitabine 1000 mg/m(2) on days 1, 8, 15, and cisplatin 100 mg/m(2) on day-15, every 28 days for a total of 151 cycles. All patients were evaluable for toxicity. Grades 3 and 4 thrombocytopenia was observed in 16% of patients, grades 3 and 4 neutropenia in 35% of patients, and grade 3 anemia in 4% of patients (no grade 4 anemia). Nonhematologic toxicity was mild. Two patients had grade 3 vomiting, and another had grade 4 hepatic toxicity only after gemcitabine administration. The dose intensity of gemcitabine and cisplatin was well maintained. Of the 45 patients evaluable for response, there were 22 (49%) partial responders, 7 (15.5%) minimal responders, 9 (20%) with stable disease, and 7 (15.5%) progressions. Compared with the schedule used in a multicenter phase II Italian trial (day 2 cisplatin), day-15 cisplatin decreases incidences of thrombocytopenia (16 vs. 52%) and anemia (4 vs. 25%); the occurrence of neutropenia is similar (35 vs. 36%). Response rates are also similar (49 vs. 54%).
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Affiliation(s)
- E Cortesi
- Department of Experimental Medicine and Pathology, Medical Oncology, La Sapienza University, Rome, Italy 00161.
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45
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Scaloni A, Bottiglieri C, Ferrara L, Corona M, Gurrola G, Batista C, Wanke E, Possani L. Corrigendum to: Disulfide bridges of Ergtoxin, a member of a new sub-family of peptide blockers of the ether-a-go-go
-related K+
channel (FEBS 24007). FEBS Lett 2000. [DOI: 10.1016/s0014-5793(00)02008-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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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Abstract
Most scorpion toxins are ligand peptides that recognize and bind to integral membrane proteins known as ion-channels. To date there are at least 202 distinct sequences described, obtained from 30 different species of scorpions, 27 from the family Buthidae and three from the family Scorpionidae. Toxins that recognize potassium and chloride channels are usually from 29 to 41 amino acids long, stabilized by three or four disulfide bridges, whereas those that recognize sodium channels are longer, 60 to 76 amino acid residues, compacted by four disulfide bridges. Toxins specific for calcium channels are scarcely known and have variable amino acid lengths. The entire repertoire of toxins, independently of their specificity, was analyzed together by computational programs and a phylogenetic tree was built showing two separate branches. The K(+) and Cl(-) channel specific toxins are clustered into 14 subfamilies, whereas those of Na(+) and Ca(2+) specific toxins comprise at least 12 subfamilies. There are clear similarities among them, both in terms of primary sequence and the main three-dimensional folding pattern. A dense core formed by a short alpha helix segment and several antiparallel beta-sheet stretches, maintained by disulfide pairing, seems to be a common structural feature present in all toxins. The physiological function of these peptides is manifested by a blockage of ion passage through the channels or by a modification of the gating mechanism that controls opening and closing of the ion pore.
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Affiliation(s)
- L D Possani
- Institute of Biotechnology, National Autonomous University of Mexico, Avenida Universidad, 2001, Apartado Postal 510-3, 62210, Cuernavaca, Mexico.
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47
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Scaloni A, Bottiglieri C, Ferrara L, Corona M, Gurrola GB, Batista C, Wanke E, Possani LD. Disulfide bridges of ergtoxin, a member of a new sub-family of peptide blockers of the ether-a-go-go-related K+ channel. FEBS Lett 2000; 479:156-7. [PMID: 11023354 DOI: 10.1016/s0014-5793(00)01891-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Abstract
To assess patients' satisfaction with pharmacists, seven questions were developed with semistructured input from 5 pharmacy practice faculty members and 11 patients with cancer. The study identified 1617 English- and Spanish-speaking patients with cancer or human immunodeficiency virus infection or acquired immunodeficiency syndrome who participated in a multisite validation of the Functional Assessment of Cancer Therapy Scale. Of these, 1124 had seen a pharmacist in the past 7 days and therefore were eligible; 608 spoke English and 516 Spanish. The seven items on the Satisfaction with Pharmacist (SWiP) scale were rated on a five-point Likert scale (0 = not at all to 4 = very much). The reliability of the English and Spanish versions was evaluated by Cronbach's alpha coefficients. The unidimensionality and construct validity were analyzed with the Rasch rating scale model. The alpha coefficients for the English and Spanish versions were 0.90 and 0.92, respectively. Rasch analyses of item responses showed that none of the items in either language was a misfit, which supported their ability to measure a unidimensional construct. Item difficulty plots revealed that no item exhibited differential functioning, indicating that the items performed the same in both languages. The SWiP scale has reliable and valid psychometric properties in English and Spanish and can be used to document the value of the pharmacist-patient relationship. It is easy to administer and is ready for further use and evaluation to determine and document outcomes of pharmaceutical care.
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Affiliation(s)
- L Hernández
- School of Pharmacy, University of Puerto Rico, San Juan 00936-5067, USA
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49
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Corona M, Estrada E, Zurita M. Differential expression of mitochondrial genes between queens and workers during caste determination in the honeybee Apis mellifera. J Exp Biol 1999; 202:929-38. [PMID: 10085265 DOI: 10.1242/jeb.202.8.929] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.8] [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: 11/20/2022]
Abstract
The nourishment received by female honeybee larvae determines their differentiation into queens or workers. In this study, we report the first molecular analysis of differences that occur between queens and workers during the caste-determination process. RNA-differential display experiments identified a clone that encodes for a gene that is homologous to the nuclear-encoded mitochondrial translation initiation factor (AmIF-2mt). Semi-quantitative analysis by reverse transcriptase/polymerase chain reaction (RT-PCR) throughout honeybee development detected a higher level of expression of this gene in queen larvae than in worker larvae. Analysis of two other genes encoding mitochondrial proteins, cytochrome oxidase subunit 1 (COX-1; mitochondrial-encoded) and cytochrome c (cyt c; nuclear-encoded) also showed differential expression of these two genes between queens and workers. In particular, the cyt c transcript is more abundant in queen larvae and throughout the metamorphosis of the queen. These results indicate that the higher respiratory rate previously documented in queen larvae is accomplished through a higher level of expression of both nuclear- and mitochondrial-encoded genes for mitochondrial proteins.
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Affiliation(s)
- M Corona
- Departamento de Genética y Fisiología Molecular, Instituto de Biotecnología, Universidad Nacional Autónoma de México, APDO-Postal 510-3, Cuernavaca Morelos 62250, México
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50
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Cella D, Hernandez L, Bonomi AE, Corona M, Vaquero M, Shiomoto G, Baez L. Spanish language translation and initial validation of the functional assessment of cancer therapy quality-of-life instrument. Med Care 1998; 36:1407-18. [PMID: 9749663 DOI: 10.1097/00005650-199809000-00012] [Citation(s) in RCA: 171] [Impact Index Per Article: 6.6] [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: 11/25/2022]
Abstract
OBJECTIVES There is a need in the United States for culture-equivalent assessment of health-related quality of life, particularly among people who speak different languages and among those with low literacy skills. This report summarizes the adaptation of the Functional Assessment of Cancer Therapy (FACT) Scales for use with Spanish-speaking cancer patients, including those with low literacy. METHODS The Spanish language version of the general Functional Assessment of Cancer Therapy scale plus five disease-specific subscales (breast, lung, colorectal, head and neck, HIV infection) were translated, reviewed, and revised, then evaluated in interviews with Spanish-speaking patients from the mainland United States and Puerto Rico. An iterative forward-backward-forward sequence of item translation, expert bilingual/bicultural advisor review, pretesting interviews with 92 patients, and further expert advisory input were used to establish semantic, content, and partial technical equivalence. RESULTS The Functional Assessment of Cancer Therapy-General and five disease-specific subscales were translated successfully into wording that was easily understood and answered, leading to psychometric and scoring data similar to that of the English version. All but one of the 28 Functional Assessment of Cancer Therapy-General items and all of the disease-specific items were seen as culturally relevant. The result is a document that underwent iterative forward-backward translation and evaluation and was pretested successfully with native Spanish-speaking oncology patients living in the Central United States and Puerto Rico. CONCLUSIONS The Functional Assessment of Cancer Therapy-General and five disease-specific subscales have been translated successfully into Spanish using a thorough translation and initial validation methodology. The methods and data provide a model for preparing a health status questionnaire for cross-cultural validation. The questionnaire is available for use in clinical trials and clinical practice.
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Affiliation(s)
- D Cella
- Evanston Northwestern Healthcare, IL 60201, USA
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