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Richard J Betts, Adrijana Perkovic, Subhashree Mahapatra, Aurélia Del Bufalo, Kaddy Camara, Amy R Howell, Silvia Martinozzi Teissier, Gennaro De Libero, Lucia Mori
Allergic contact dermatitis is a primarily T-cell-mediated inflammatory skin disease induced by exposure to small molecular-weight haptens, which covalently bind to proteins. The abundance of cutaneous T cells that recognize CD1a antigen-presenting molecules raises the possibility that MHC-independent antigen presentation may be relevant in some hapten-driven immune responses. Here we examine the ability of contact sensitizers to influence CD1-restricted immunity. Exposure of human antigen-presenting cells such as monocyte-derived dendritic cells and THP-1 cells to the prototypical contact sensitizer dinitrochlorobenzene potentiated the response of CD1a- and CD1d-autoreactive T cells, which released a vast array of cytokines in a CD1- and TCR-dependent manner...
April 25, 2017: European Journal of Immunology
A Noto, C De Vitis, M E Pisanu, G Roscilli, G Ricci, A Catizone, G Sorrentino, G Chianese, O Taglialatela-Scafati, D Trisciuoglio, D Del Bufalo, M Di Martile, A Di Napoli, L Ruco, S Costantini, Z Jakopin, A Budillon, G Melino, G Del Sal, G Ciliberto, R Mancini
Recent evidences suggest that stearoyl-CoA-desaturase 1 (SCD1), the enzyme involved in monounsaturated fatty acids synthesis, has a role in several cancers. We previously demonstrated that SCD1 is important in lung cancer stem cells survival and propagation. In this article, we first show, using primary cell cultures from human lung adenocarcinoma, that the effectors of the Hippo pathway, Yes-associated protein (YAP) and transcriptional co-activator with PDZ-binding motif (TAZ), are required for the generation of lung cancer three-dimensional cultures and that SCD1 knock down and pharmacological inhibition both decrease expression, nuclear localization and transcriptional activity of YAP and TAZ...
April 3, 2017: Oncogene
Giulio Conte, Mihoko Kawabata, Carlo de Asmundis, Erika Taravelli, Francesco Petracca, Diego Ruggiero, Maria Luce Caputo, François Regoli, Gian-Battista Chierchia, Alessandra Chiodini, Alessandro Del Bufalo, Tiziano Moccetti, Masahiko Goya, Kenzo Hirao, Alessandro Vicentini, Gaetano M De Ferrari, Pedro Brugada, Angelo Auricchio
Aims: Subcutaneous implantable cardioverter-defibrillator (S-ICD) can avoid important complications associated with transvenous leads in patients with inherited primary arrhythmia syndromes, who do not need pacing therapy. Few data are available on the percentage of patients with inherited arrhythmia syndromes eligible for S-ICD implantation. Aim of this study was to analyse the eligibility for S-ICD in a series of patients with Brugada syndrome (BrS), and to compare it with patients with other channelopathies...
March 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Luigi Biasco, Giovanni B Pedrazzini, Marco Araco, Francesco Petracca, Daniele Del Monte, Daniel Sürder, Fulvio Bomio, Martina Boscolo Berto, Giulia Montrasio, Alessandro Del Bufalo, Elena Pasotti, Tiziano Moccetti, Marco Moccetti
AIMS: The aim of the study was to retrospectively evaluate safety and patient satisfaction of same-day discharge after elective radial coronary angiography/percutaneous coronary intervention (PCI) after the implementation of a radial lounge facility. METHODS: All patients admitted to our radial lounge with a planned same-day discharge after an uncomplicated coronary angiography/PCI, having a co-living caregiver, were day enrolled in the study. Rates of same-day discharge, unplanned overnight stay, and in-hospital and first complications [death, myocardial infarction (MI), unplanned coronary angiography, access site hematoma, bleedings requiring hospitalization] were analysed; satisfaction was also evaluated through a questionnaire...
March 17, 2017: Journal of Cardiovascular Medicine
Carolina Bello, Mauro Galetti, Denise Montan, Marco A Pizo, Tatiane C Mariguela, Laurence Culot, Felipe Bufalo, Fabio Labecca, Felipe Pedrosa, Rafaela Constantini, Carine Emer, Wesley R Silva, Fernanda R da Silva, Otso Ovaskainen, Pedro Jordano
The data set provided here includes 8,320 frugivory interactions (records of pairwise interactions between plant and frugivore species) reported for the Atlantic Forest. The data set includes interactions between 331 vertebrate species (232 birds, 90 mammals, 5 fishes, 1 amphibian, and 3 reptiles) and 788 plant species. We also present information on traits directly related to the frugivory process (endozoochory), such as the size of fruits and seeds and the body mass and gape size of frugivores. Data were extracted from 166 published and unpublished sources spanning from 1961 to 2016...
March 19, 2017: Ecology
J F M Almeida, A H Campos, M A Marcello, N E Bufalo, C L Rossi, L H P Amaral, A B Marques, L L Cunha, C A Alvarenga, P C Tincani, A J Tincani, L S Ward
Herpesviruses have been associated with various human malignancies and with thyroid autoimmunity. Aiming to investigate the presence of these viruses in thyroid nodules, we analyzed serum and thyroid tissue from 183 patients (83 benign and 100 malignant thyroid nodules). We also obtained 104 normal thyroid tissues extracted from the contralateral lobe of these patients. We used ELISA to screen the serology of all patients and a real-time quantitative PCR to analyze thyroid tissue viral load in antibody-positive patients...
March 8, 2017: Journal of Endocrinological Investigation
Michele Milella, Italia Falcone, Fabiana Conciatori, Silvia Matteoni, Andrea Sacconi, Teresa De Luca, Chiara Bazzichetto, Vincenzo Corbo, Michele Simbolo, Isabella Sperduti, Antonina Benfante, Anais Del Curatolo, Ursula Cesta Incani, Federico Malusa, Adriana Eramo, Giovanni Sette, Aldo Scarpa, Marina Konopleva, Michael Andreeff, James Andrew McCubrey, Giovanni Blandino, Matilde Todaro, Giorgio Stassi, Ruggero De Maria, Francesco Cognetti, Donatella Del Bufalo, Ludovica Ciuffreda
Combined MAPK/PI3K pathway inhibition represents an attractive, albeit toxic, therapeutic strategy in oncology. Since PTEN lies at the intersection of these two pathways, we investigated whether PTEN status determines the functional response to combined pathway inhibition. PTEN (gene, mRNA, and protein) status was extensively characterized in a panel of cancer cell lines and combined MEK/mTOR inhibition displayed highly synergistic pharmacologic interactions almost exclusively in PTEN-loss models. Genetic manipulation of PTEN status confirmed a mechanistic role for PTEN in determining the functional outcome of combined pathway blockade...
February 21, 2017: Scientific Reports
Giulio Conte, Maria Luce Caputo, François Regoli, Serena Marcon, Catherine Klersy, Boris Adjibodou, Alessandro Del Bufalo, Tiziano Moccetti, Angelo Auricchio
No abstract text is available yet for this article.
February 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
R M Labib, F S Youssef, M L Ashour, J Búfalo, S A Ross
No abstract text is available yet for this article.
December 2016: Planta Medica
Maria Luce Caputo, François Regoli, Giulio Conte, Boris Adjibodou, Stefano Svab, Alessandro Del Bufalo, Tiziano Moccetti, Moreno Curti, Catherine Klersy, Angelo Auricchio
BACKGROUND: The aim of this study was to determine overall and aetiology-related incidence of secondary prevention ICD implantation over the last 15years in Canton Ticino and to assess clinical outcome according to time period of implantation. METHODS AND RESULTS: Consecutive patients treated by implantation of an ICD for secondary prevention from 2000 to 2015 were included in the current study and compared between 5-year cohorts (2000/2004; 2005/2009; 2010/2015)...
February 1, 2017: International Journal of Cardiology
Shigeki Yagyu, Valentina Hoyos, Francesca Del Bufalo, Malcolm K Brenner
Expression of the inducible caspase-9 (iC9) suicide gene is one of the most appealing safety strategies for cell therapy and has been applied for human-induced pluripotent stem cells (hiPSC) to control the cell fate of hiPSC. iC9 can induce cell death of over 99% of iC9-transduced hiPSC (iC9-hiPSC) in less than 24 hours after exposure to chemical inducer of dimerization (CID). There is, however, a small number of resistant cells that subsequently outgrows. To ensure greater uniformity of the hiPSC response to iC9 activation, we purified a resistant population by culturing iC9-hiPSC with CID and analyzing the mechanisms by which the cells evade killing...
2016: Molecular Therapy. Methods & Clinical Development
Michela Massoud, Francesca Del Bufalo, Anna Maria Caterina Musolino, Paolo Maria Schingo, Stefania Gaspari, Mara Pisani, Cinzia Orazi, Antonino Reale, Umberto Raucci
BACKGROUND: Low back pain is a common symptom in the pediatric population; approximately half of all children present with at least one episode of low back pain. The majority of cases are due to nonspecific causes such as musculoskeletal trauma with spontaneous regression. On some occasions, however, life-threatening diseases have to be considered. CASE REPORT: A 15-year-old girl presented to the Pediatric Emergency Department for a history of continuous 2-day duration of low back pain and transient paresthesia of the right gluteal area...
September 2016: Journal of Emergency Medicine
Marta Di Martile, Donatella Del Bufalo, Daniela Trisciuoglio
Lysine acetylation is a post-translational modification that regulates gene transcription by targeting histones as well as a variety of transcription factors in the nucleus. Recently, several reports have demonstrated that numerous cytosolic proteins are also acetylated and that this modification, affecting protein activity, localization and stability has profound consequences on their cellular functions. Interestingly, most non-histone proteins targeted by acetylation are relevant for tumorigenesis. In this review, we will analyze the functional implications of lysine acetylation in different cellular compartments, and will examine our current understanding of lysine acetyltransferases family, highlighting the biological role and prognostic value of these enzymes and their substrates in cancer...
August 23, 2016: Oncotarget
Jennifer Búfalo, Tatiane Maria Rodrigues, Luiz Fernando Rolim de Almeida, Luiz Ricardo Dos Santos Tozin, Marcia Ortiz Mayo Marques, Carmen Silvia Fernandes Boaro
The present study investigated whether osmotic stress induced by the exposure of peppermint (Mentha x piperita L.) to moderate and severe stress for short periods of time changes the plant's physiological parameters, leaf anatomy and ultrastructure and essential oil. Plants were exposed to two levels of polyethyleneglycol (50 g L(-1) and 100 g L(-1) of PEG) in a hydroponic experiment. The plants exposed to 50 g L(-1) maintained metabolic functions similar to those of the control group (0 g L(-1)) without changes in gas exchange or structural characteristics...
August 2016: Plant Physiology and Biochemistry: PPB
Donatella Del Bufalo, Francesca Degrassi
[This corrects the article on p. 902 in vol. 2, PMID: 26697517.].
2016: Oncoscience
Giulio Conte, Maria Luce Caputo, François Regoli, Serena Marcon, Catherine Klersy, Boris Adjibodou, Alessandro Del Bufalo, Tiziano Moccetti, Angelo Auricchio
AIMS: Out-of-hospital cardiac arrest (OHCA) in the absence of evident structural heart disease is rare and can be due to subclinical cardiomyopathy and primary electrical disorders, including idiopathic ventricular fibrillation (IVF) with early repolarization (ER) pattern. Aim of this study was to investigate prevalence, clinical features, and long-term prognosis of IVF in OHCA survivors with otherwise normal 12-lead electrocardiograms (ECGs). METHODS AND RESULTS: Patients with IVF in the absence of ER pattern or atrioventricular conduction abnormalities were considered eligible for this study...
February 17, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Luiz Fernando Rolim de Almeida, Roberto de Oliveira Portella, Jennifer Bufalo, Márcia Ortiz Mayo Marques, Roselaine Facanali, Fernando Frei
The present study aimed to evaluate the effect of seasonal and diurnal events on the chemical profile of the essential oil obtained from the leaves of Copaifera langsdorffii Desf. This study was performed in a Brazilian savanna named Cerrado. We identified the best harvesting period for obtaining the highest amount of compounds used for commercial and industrial purposes. The chemical profile of the essential oils was evaluated by GC-FID and GC-MS, and the results were assessed through multivariate analyses...
2016: PloS One
Marta Di Martile, Marianna Desideri, Teresa De Luca, Chiara Gabellini, Simonetta Buglioni, Adriana Eramo, Giovanni Sette, Michele Milella, Dante Rotili, Antonello Mai, Simone Carradori, Daniela Secci, Ruggero De Maria, Donatella Del Bufalo, Daniela Trisciuoglio
Cancer stem cells (CSCs) play an important role in tumor initiation, progression, therapeutic failure and tumor relapse. In this study, we evaluated the efficacy of the thiazole derivative 3-methylcyclopentylidene-[4-(4'-chlorophenyl)thiazol-2-yl]hydrazone (CPTH6), a novel pCAF and Gcn5 histone acetyltransferase inhibitor, as a small molecule that preferentially targets lung cancer stem-like cells (LCSCs) derived from non-small cell lung cancer (NSCLC) patients. Notably, although CPTH6 inhibits the growth of both LCSC and NSCLC cell lines, LCSCs exhibit greater growth inhibition than established NSCLC cells...
March 8, 2016: Oncotarget
D Trisciuoglio, M Desideri, V Farini, T De Luca, M Di Martile, M G Tupone, A Urbani, S D'Aguanno, D Del Bufalo
Members of the bcl-2 protein family share regions of sequence similarity, the bcl-2 homology (BH) domains. Bcl-2, the most studied member of this family, has four BH domains, BH1-4, and has a critical role in resistance to antineoplastic drugs by regulating the mitochondrial apoptotic pathway. Moreover, it is also involved in other relevant cellular processes such as tumor progression, angiogenesis and autophagy. Deciphering the network of bcl-2-interacting factors should provide a critical advance in understanding the different functions of bcl-2...
February 11, 2016: Cell Death & Disease
Sergio Valente, Paolo Mellini, Francesco Spallotta, Vincenzo Carafa, Angela Nebbioso, Lucia Polletta, Ilaria Carnevale, Serena Saladini, Daniela Trisciuoglio, Chiara Gabellini, Maria Tardugno, Clemens Zwergel, Chiara Cencioni, Sandra Atlante, Sébastien Moniot, Clemens Steegborn, Roberta Budriesi, Marco Tafani, Donatella Del Bufalo, Lucia Altucci, Carlo Gaetano, Antonello Mai
Modulators of sirtuins are considered promising therapeutic targets for the treatment of cancer, cardiovascular, metabolic, inflammatory, and neurodegenerative diseases. Here we prepared new 1,4-dihydropyridines (DHPs) bearing changes at the C2/C6, C3/C5, C4, or N1 position. Tested with the SIRTainty procedure, some of them displayed increased SIRT1 activation with respect to the prototype 3a, high NO release in HaCat cells, and ameliorated skin repair in a mouse model of wound healing. In C2C12 myoblasts, two of them improved mitochondrial density and functions...
February 25, 2016: Journal of Medicinal Chemistry
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