Search results for "ONCOLOGIA"
showing 10 items of 386 documents
Corrigendum to “Liquid biopsies in lung cancer: The new ambrosia of researchers” [Biochem. Biophys. Act. 1846(2014) 539–546]
2015
a Phase I — Early Clinical Trials Unit, Oncology Department, Antwerp University Hospital, Wilrijkstraat 10, Edegem 2650, Belgium b Molecular Pathology Unit, Pathology Department, Antwerp University Hospital, Wilrijkstraat 10, Edegem 2650, Belgium c Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Via Liborio Giuffre 5, Palermo 90127, Italy d Department of Investigational Cancer Therapeutics (Phase I Program), The University of Texas MD Anderson Cancer Center, Holcombe Blvd 1400, Unit 455, Houston 77030, USA e Department of Biopathology and Medical and Forensic Biotechnologies, Section of Biology and Genetics, University of Palermo, V…
VEGF-targeted therapy stably modulates the glycolytic phenotype of tumor cells
2014
Abstract Anti-VEGF therapy perturbs tumor metabolism, severely impairing oxygen, glucose, and ATP levels. In this study, we investigated the effects of anti-VEGF therapy in multiple experimental tumor models that differ in their glycolytic phenotypes to gain insights into optimal modulation of the metabolic features of this therapy. Prolonged treatments induced vascular regression and necrosis in tumor xenograft models, with highly glycolytic tumors becoming treatment resistant more rapidly than poorly glycolytic tumors. By PET imaging, prolonged treatments yielded an increase in both hypoxic and proliferative regions of tumors. A selection for highly glycolytic cells was noted and this met…
Predicting efficacy and toxicity in the era of targeted therapy: focus on anti-EGFR and anti-VEGF molecules
2011
The treatment of solid malignancies includes various target drugs, such as monoclonal antibodies and tyrosine kinase inhibitors, which exert their effect alone or in combination with chemotherapy. The main part of these molecules have a target on proteins of EGFR and VEGF pathways. The particular toxicity profile and the financial impact, deriving from the application of these agents in cancer treatment, prompted a lot of researches to define predictive factors of their efficacy. Various biomarker were identified among the components of the targeted pathways. However just few studies allowed to identify specific factors to predict the toxicity of these drugs. In this review EGFR and VEGF-re…
Oncogeriatry: Communication, sharing, coordination of an emerging reality. The IIIrd Official Meeting of the AIOM Working Group on Oncogeriatry
2010
The clinical management of the oncological elderly patient represents one of the most important challenges for today's oncology and, above all, for the future. The number of elderly patients with neoplastic pathologies is destined to increase proportionally to the duration of life and therefore a correct management of their conditions becomes an element of priority from the scientific and economic point of view. Close relationships and collaborations between Oncologist and Geriatrics are definitely desirable to be able to guarantee the best way for a good treatment (specific and of support) of these elderly patients. The components of the AIOM Working Group on Oncogeriatry have gathered the…
Alteration of the YY1/RKIP ratio is a frequent event in hepatocellular carcinoma
2009
“THERMAL NOCICEPTION STUDIES IN ZEBRAFISH”
2012
Background Nociception was defined by Sherrington as the mechanism used to sense painful events. Despite the value of current animal models for nociception and pain, we have not yet understood in full how these mechanisms operate. Aim Here we propose a novel approach using zebrafish (Danio rerio) larvae in order to determine if the fish is suitable for the study of pain stimuli. Taking advantage of the fact that, in response to noxious stimuli, the expression of several genes in mammals is induced in neurons of the spinal cord and the dorsal root ganglia (DRG), we investigated if such mechanism is evolutionary conserved in the Zebrafish. Materials and Methods We cloned homologues of mammals…
Effects of anti-miR-182 on Thrombospondin-1 expression in human colon cancer cells
2012
ABSTRACT Background: MicroRNAs are small non-coding RNAs that regulate the expression of different genes, involved in cancer progression, angiogenesis and metastasis. Bio-informatic statistical analysis indicated that miR-182, over-expressed in colorectal cancer (CRC), has like predictive target Thrombospondin-1 (TSP-1), a protein inversely correlated with tumor vascularity and metastasis that results downregulated in different types of cancer including CRC. Early Growth Response 1 (Erg-1) and Specificity Protein 1 (Sp-1) are transcriptional factors that bind consensus sequence on TSP-1 gene promoter and are putative target of miR-96/182/183 cluster. MiR-182 could target SMAD4, which expres…
Study on b-Catenins mechanisms of regulation in zebrafish blastula embryo
2012
Background: â-catenin is a central component of the cadherin cell adhesion complex but also it plays an essential role in the canonical-Wingless/Wnt signaling pathway. In vertebrates, one of the initial steps for the establishment of the correct dorso-ventral (D/V) pattern in the embryo is the cytoplasmic accumulation followed by nuclear localization of â-catenin in the cells of the prospective dorsal side of the embryo. In zebrafish there are two â-catenins, 92,7% identical. The mutant fish line Ichabod (ich), with a mutation in the region of the â-catenin2 promoter that causes a decrease in the maternal accumulation of â-catenin2 protein in the embryos, fail to nuclear localize â- catenin…
Bienestar emocional, imagen corporal, autoestima y sexualidad en mujeres con cáncer de mama
2013
Como toda enfermedad amenazante para la vida de las personas, el cáncer de mama supone una situación de estrés en las mujeres que lo padecen, tanto desde un punto de vista físico como psicológico, puesto que además de tener que enfrentarse a la enfermedad y sus tratamientos, las mujeres han de adaptarse a cambios referidos a su imagen corporal y a los sentimientos y actitudes que ello conlleva (Sebastián et al., 2007). El bienestar emocional de las pacientes con cáncer de mama por ende se ve afectado y tal como se refleja en numerosos estudios, las alteraciones más prevalentes son la ansiedad y la depresión (Barreto y Pintado, 2011; Bellver, 2007; Toledo, Ferrero y Barreto, 1994; Zhao et al…