Search results for " Biochimica"

A Fibrillar Biodegradable Scaffold for Blood Vessels Tissue Engineering

2012

In recent years there has been a growing interest for the development of tubular scaffolds employed to assist the replacement of small blood vessels. Materials designed for this purpose need to be biodegradable, have good mechanical properties and improve cell adhesion, proliferation and differentiation. To obtain biomaterials with these properties, electrospinning seems to be one of the most useful technique. Several biodegradable synthetic polymers or constituents of the extracellular matrix (ECM) have been electrospun showing optimal mechanical properties and biodegradability. However, such polymers are lacking in versatile chemical structure affordable to immobilize growth factors or ch…

The synthetic cannabinoid WIN sensitizes hepatocellular carcinoma cells to TRAIL-induced apoptosis by activating p8/CHOP/DR5 axis.

2010

In this paper we demonstrate that the synthetic cannabinoid WIN sensitizes human hepatocellular carcinoma (HCC) cells to apoptosis mediated by TNF-related apoptosis inducing ligand (TRAIL). The apoptotic mechanism induced by treatment with WIN/TRAIL combination involved the loss of the mitochondrial transmembrane potential and led to the activation of caspases. In HCC cells WIN treatment induced up-regulation of TRAIL death receptor DR5, an effect which seemed to be related to the increase in the level of p8 and CHOP, two factors implicated in cellular stress response and apoptosis. This relationship was suggested by the observation that the down-regulation of p8 or CHOP by specific siRNAs …

La chimica organica e le macromolecole biologiche

2020

The effects of a 3-week training on basal biomarkers in professional soccer players during the preseason preparation period

2012

Derivati policiclici con struttura complessa dotati di attività antiproliferativa

2017

Sono stati sintetizzati composti a struttura policiclica complessa. Tutti i composti sintetizzati sono stati saggiati dall'NCI (USA) su un panel di 60 linee cellulari tumorali umane. Sula base dei risultati ottenuti è stato possibile effettuare uno studio SAR che ha evidenziato come la presenza di gruppi idrofili è necessaria ai fini dell'attività antitumorale. E' stato inoltre studiato il meccanismo d'azione di queste molecole. E' stato notato un arresto delle cellule MDA-MB231 in fase G0/G1 correlato con la defosforilazione ed attivazione, indotta dai composti, della proteina pRb. Il meccanismo comunque varia arrestando il ciclo cellulare in fase G2/M quando per effetto della glicosilazio…

Coupling natural antioxidant treatment and MAP to increase the value of Mediterranean fisheries species

2014

Biochimica delle cellule tumorali

2018

Con il termine cancro (o tumori) si indica un insieme di patologie nelle quali le cellule hanno perso i normali meccanismi di controllo della crescita. Queste cellule, che proliferano in modo incontrollato, generano masse che alterano la struttura e il funzionamento del tessuto o dell’organo in cui si trovano, invadono i tessuti circostanti e, entrando nel flusso sanguigno e linfatico, si diffondono generando nuovi tumori. E’ ormai assodato che il cancro è il risultato di alterazioni genetiche ed epigenetiche che portano alla modifica dell’espressione e della funzione di geni che regolano la crescita e la sopravvivenza cellulare e che possono esser trasmesse per via ereditaria. L’esposizion…

ATTIVITÀ RNA LEGANTE DELLA PROTEINA CSD-C2 RICOMBINANTE PRODOTTA IN ESCHERICHIA COLI RNA BINDING ACTIVITY OF RECOMBINANT CSD-C2 PROTEIN EXPRESSED IN …

2010

Orally administered indicaxanthin is able to modulate human motor cortical excitability and plasticity

Opuntia Ficus Indica contains Indicaxanthin (IX), an antinflammatory and antioxidant betalaine pigment. This phytochemical is also able to cross the blood brain barrier (BBB) in rats and modulate neuronal activity. Considering these evidence, we aimed at investigating if orally administered IX could affect human brain tissue. 8 healthy and right-handed male subjects were recruited (20-45 years) with no history or clinical signs of neurological diseases, brain trauma or use of drugs acting on neuronal process, as assessed by a clinical neurologist. Non invasive Brain Stimulation and Neuromodulation (NIBS and NIN) instructions were applied in basal condition (T0) and 2 hours after having assu…

Synthesis and antirpoliferative activity of isoxazolo[3,4-d]pyridazin-7(6H)-one derivatives

2014

3,4-diphenylisoxazolo[3,4-d]pyridazin-7(6H)-one analogs were synthesized and tested for the antiproliferative activity. Study on the cell cycle alteration and on some cellular target (ATM, procaspase-2 proteins and H2AX histone) demonstrate the increase of the cell population in S phase and to induce cellular death by apoptosis by DNA damage with double strand breaks.