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https://www.readbyqxmd.com/read/29131545/a-double-point-mutation-at-residues-ile14-and-val15-of-bcl-2-uncovers-a-role-for-bh4-domain-in-both-protein-stability-and-function
#1
Giovanni Monaco, Rita La Rovere, Spyridoula Karamanou, Kirsten Welkenhuyzen, Hristina Ivanova, Elien Vandermarliere, Marta Di Martile, Donatella Del Bufalo, Humbert De Smedt, Jan B Parys, Anastassios Economou, Geert Bultynck
B-cell lymphoma 2 (Bcl-2) protein is the archetype apoptosis suppressor protein. The N-terminal Bcl-2-homology 4 (BH4) domain of Bcl-2 is required for the anti-apoptotic function of this protein at the mitochondria and endoplasmic reticulum (ER). The involvement of the BH4 domain in Bcl-2's anti-apoptotic functions has been proposed based on Gly-based substitutions of the Ile14/Val15 amino acids, two hydrophobic residues located in the centre of Bcl-2's BH4 domain. Following this strategy, we recently showed that a BH4-domain-derived peptide in which Ile14 and Val15 have been replaced by Gly residues, was unable to dampen pro-apoptotic Ca(2+) -release events from the ER...
November 13, 2017: FEBS Journal
https://www.readbyqxmd.com/read/29040189/the-patient-and-observer-scar-assessment-scale-to-evaluate-the-cosmetic-outcomes-of-the-robotic-single-site-hysterectomy-in-endometrial-cancer
#2
Giacomo Corrado, Gloria Calagna, Giuseppe Cutillo, Salvatore Insinga, Emanuela Mancini, Ermelinda Baiocco, Ashanti Zampa, Arabella Bufalo, Antonio Perino, Enrico Vizza
OBJECTIVE: The objective of this study was to evaluate the cosmetic outcome of robotic single-site hysterectomy (RSSH) in early-stage endometrial cancer. METHODS: We prospectively collected patient demographics, operative times, complications, pathologic results, and length of stay on all patients who underwent RSSH for early-stage endometrial cancer. The Patient and Observer Scar Assessment Scale (POSAS) was used for the evaluation of the cosmetic outcome. RESULTS: Forty-five patients were included in our study from January 2012 to October 2015...
October 17, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28968481/state-of-the-art-and-new-options-to-assess-t-cell-activation-by-skin-sensitizers-cosmetics-europe-workshop
#3
Erwin van Vliet, Jochen Kühnl, Carsten Goebel, Silvia Martinozzi-Teissier, Nathalie Alépée, Takao Ashikaga, Brunhilde Blömeke, Aurelia Del Bufalo, Magalie Cluzel, Emanuela Corsini, Nathalie Delrue, Bertrand Desprez, Nichola Gellatly, Christoph Giese, Laura Gribaldo, Sebastian Hoffmann, Martina Klaric, Bernard Maillere, Dean Naisbitt, Marc Pallardy, Marc Vocanson, Dirk Petersohn
Significant progress has been made in the development and validation of non-animal test methods for skin sensitization assessment. At present, three of the four key events of the Adverse Outcome Pathway (AOP) are assessable by OECD-accepted in vitro methods. The fourth key event describes the immunological response in the draining lymph node where activated dendritic cells present major histocompatibility complex-bound chemically modified peptides to naive T cells, thereby priming the proliferation of antigen-specific T cells...
October 2, 2017: ALTEX
https://www.readbyqxmd.com/read/28949016/interleukin-8-mediates-bcl-xl-induced-enhancement-of-human-melanoma-cell-dissemination-and-angiogenesis-in-a-zebrafish-xenograft-model
#4
Chiara Gabellini, Elena Gómez-Abenza, Sofia Ibáñez-Molero, Maria Grazia Tupone, Ana B Pérez-Oliva, Sofia de Oliveira, Donatella Del Bufalo, Victoriano Mulero
The protein bcl-xL is able to enhance the secretion of the proinflammatory chemokine interleukin 8 (CXCL8) in human melanoma lines. In this study, we investigate whether the bcl-xL/CXCL8 axis is important for promoting melanoma angiogenesis and aggressiveness in vivo, using angiogenesis and xenotransplantation assays in zebrafish embryos. When injected into wild-type embryos, bcl-xL-overexpressing melanoma cells showed enhanced dissemination and angiogenic activity compared with control cells. Human CXCL8 protein elicited a strong proangiogenic activity in zebrafish embryos and zebrafish Cxcr2 receptor was identified as the mediator of CXCL8 proangiogenic activity using a morpholino-mediated gene knockdown...
September 26, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28925395/small-molecules-targeted-to-the-microtubule-hec1-interaction-inhibit-cancer-cell-growth-through-microtubule-stabilization
#5
M Ferrara, G Sessa, M Fiore, F Bernard, I A Asteriti, E Cundari, G Colotti, S Ferla, M Desideri, S Buglioni, D Trisciuoglio, D Del Bufalo, A Brancale, F Degrassi
Highly expressed in cancer protein 1 (Hec1) is a subunit of the kinetochore (KT)-associated Ndc80 complex, which ensures proper segregation of sister chromatids at mitosis by mediating the interaction between KTs and microtubules (MTs). HEC1 mRNA and protein are highly expressed in many malignancies as part of a signature of chromosome instability. These properties render Hec1 a promising molecular target for developing therapeutic drugs that exert their anticancer activities by producing massive chromosome aneuploidy...
September 18, 2017: Oncogene
https://www.readbyqxmd.com/read/28631895/growth-hormone-excess-in-children-with-neurofibromatosis-type-1-and-optic-glioma
#6
Paola Cambiaso, Stefania Galassi, Melania Palmiero, Angela Mastronuzzi, Francesca Del Bufalo, Rossella Capolino, Antonella Cacchione, Paola S Buonuomo, Michaela V Gonfiantini, Andrea Bartuli, Marco Cappa, Marina Macchiaiolo
In children with neurofibromatosis type 1 (NF1) and optic pathways glioma (OPG), growth hormone (GH) excess has been rarely reported and mainly associated to central precocious puberty. The aim of our study is to evaluate the prevalence of GH excess, the association with central precocious puberty, the relation with tumor site and the evolution over time in a large cohort of children with NF1 and OPG. Sixty-four NF1 children with OPG were evaluated. Patients with stature and/or height velocity >2 SD for age were studied for GH secretion...
June 20, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28628115/stearoyl-coa-desaturase-1-regulates-lung-cancer-stemness-via-stabilization-and-nuclear-localization-of-yap-taz
#7
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
This corrects the article DOI: 10.1038/onc.2017.75.
August 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28594322/caspase-8-contributes-to-angiogenesis-and-chemotherapy-resistance-in-glioblastoma
#8
Giulia Fianco, Maria Patrizia Mongiardi, Andrea Levi, Teresa De Luca, Marianna Desideri, Daniela Trisciuoglio, Donatella Del Bufalo, Irene Cinà, Anna Di Benedetto, Marcella Mottolese, Antonietta Gentile, Diego Centonze, Fabrizio Ferrè, Daniela Barilà
Caspase-8 is a key player in extrinsic apoptosis and its activity is often downregulated in cancer. However, human Caspase-8 expression is retained in some tumors, including glioblastoma (GBM), suggesting that it may support cancer growth in these contexts. GBM, the most aggressive of the gliomas, is characterized by extensive angiogenesis and by an inflammatory microenvironment that support its development and resistance to therapies. We have recently shown that Caspase-8 sustains neoplastic transformation in vitro in human GBM cell lines...
June 8, 2017: ELife
https://www.readbyqxmd.com/read/28580754/regional-distribution-and-integrity-of-equine-ovarian-pre-antral-follicles
#9
S M Gonzalez, C B da Silva, A G Lindquist, I Bufalo, F Morotti, L A Lisboa, M Seneda
The goal of this study was to determine the distribution of pre-antral follicles in the ovarian parenchyma of mares. For Experiment 1, each ovary was cut longitudinally at the greater curvature, performing two hemiovaries. After that, six fragments from each hemiovary were obtained, resulting in 12 fragments, which were divided into the innermost region of the parenchyma, the middle region and the outermost region. All the three obtained sections were cut transversally to obtain two fragments from each one...
June 4, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28580717/the-development-and-integrity-of-equine-pre-antral-follicles-cultured-in-vitro-with-follicle-stimulating-hormone-fsh-supplementation
#10
M C Max, C B Silva, S M González, A G Lindquist, I Búfalo, R G Gomes, F Morotti, C B Costa, Trr Barreiros, L A Lisboa, M M Seneda
This study investigated the effects of different concentrations of FSH (10, 50, 100 and 200 ng/ml) in supplemented MEM+ on the development of equine pre-antral follicles that were cultured in vitro for 2 or 6 days. The ovaries (n = 5) from mares in seasonal anoestrus were collected from a local abattoir. Ten ovarian tissue fragments of approximately 3 × 3 × 1 mm were obtained from each animal. The fragments were cultured in situ for 2 days (D2) or 6 days (D6) in MEM+ or MEM+ supplemented with FSH at four different concentrations, establishing the following 11 groups: control (D0); MEM + (D2); MEM + (D6); MEM + 10 ng/ml of FSH (D2); MEM + 10 ng/ml of FSH (D6); MEM + 50 ng/ml of FSH (D2); MEM + 50 ng/ml of FSH (D6); MEM + 100 ng/ml of FSH (D2); MEM + 100 ng/ml of FSH (D6); MEM + 200 ng/ml of FSH (D2); and MEM + 200 ng/ml of FSH (D6)...
June 4, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28440548/contact-sensitizers-trigger-human-cd1-autoreactive-t-cell-responses
#11
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...
July 2017: European Journal of Immunology
https://www.readbyqxmd.com/read/28368399/stearoyl-coa-desaturase-1-regulates-lung-cancer-stemness-via-stabilization-and-nuclear-localization-of-yap-taz
#12
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...
August 10, 2017: Oncogene
https://www.readbyqxmd.com/read/28340026/high-rate-of-subcutaneous-implantable-cardioverter-defibrillator-sensing-screening-failure-in-patients-with-brugada-syndrome-a-comparison-with-other-inherited-primary-arrhythmia-syndromes
#13
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
https://www.readbyqxmd.com/read/28319532/evaluation-of-a-protocol-for-same-day-discharge-after-radial-lounge-monitoring-in-a-southern-swiss-referral-percutaneous-coronary-intervention-centre
#14
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...
August 2017: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/28317110/atlantic-frugivory-a-plant-frugivore-interaction-data-set-for-the-atlantic-forest
#15
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...
June 2017: Ecology
https://www.readbyqxmd.com/read/28276007/investigation-on-the-association-between-thyroid-tumorigeneses-and-herpesviruses
#16
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...
August 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/28220839/pten-status-is-a-crucial-determinant-of-the-functional-outcome-of-combined-mek-and-mtor-inhibition-in-cancer
#17
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
https://www.readbyqxmd.com/read/28175278/true-idiopathic-ventricular-fibrillation-in-out-of-hospital-cardiac-arrest-survivors-in-the-swiss-canton-ticino-prevalence-clinical-features-and-long-term-follow-up
#18
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 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27975732/chemical-composition-and-bioactivity-of-the-essential-oil-of-pinus-roxburghii-bark
#19
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
https://www.readbyqxmd.com/read/27863358/temporal-trends-and-long-term-follow-up-of-implantable-cardioverter-defibrillator-therapy-for-secondary-prevention-a-15-year-single-centre-experience
#20
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
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