Chimeric antigen receptor T cell therapies are revolutionizing the clinical practice of hematological tumors, whereas minimal progresses have been achieved in the solid tumor arena. Multiple reasons have been ascribed to this slower pace: The higher heterogeneity, the hurdles of defining reliable tumor antigens to target, and the broad repertoire of immune escape strategies developed by solid tumors are considered among the major ones. Currently, several CAR therapies are being investigated in preclinical and early clinical trials against solid tumors differing in the type of construct, the cells that are engineered, and the additional signals included with the CAR constructs to overcome solid tumor barriers.
View Article and Find Full Text PDFSmart Specialization Strategy (S3) of Lazio defines smart specialization strategies to bring out the excellence of the territory with prospects of success on the global market. Chemical-pharmaceutical, biomedical and biotechnological field is one of the 7 sectors considered of greatest interest for the S3. Key engine of biotechnology development are biological materials and associated data, stored in biobanks.
View Article and Find Full Text PDFClin Lymphoma Myeloma Leuk
December 2017
The progressive improvement of lymphoma therapies has led to a significant prolongation of patient survival and life expectancy. However, lymphoma survivors are at high risk of experiencing a range of early and late adverse effects associated with the extent of treatment exposure. Among these, second malignancies and cardiopulmonary diseases can be fatal, and neurocognitive dysfunction, endocrinopathy, muscle atrophy, and persistent fatigue can affect patients' quality of life for decades after treatment.
View Article and Find Full Text PDFBiopreserv Biobank
February 2017
Worldwide, the sustainability of public health systems is challenged by the increasing number and cost of personalized therapies. Quality biological samples stored in biobanks are essential for the provision of appropriate health services and also act as a reservoir for the development of precision medicine and biotechnological innovation. Economic sustainability is a crucial factor in the maintenance of biobanking activities.
View Article and Find Full Text PDFAlthough non-alcoholic fatty liver disease (NAFLD), characterised by the accumulation of triacylglycerol in the liver, is the most common liver disorder, the causes of its development and progression to the more serious non-alcoholic steatohepatitis (NASH) remain incompletely understood. Oxidative stress has been implicated as a key factor in both these processes, and mitochondrial dysfunction and inflammation are also believed to play a part. Coenzyme Q (CoQ) is a powerful antioxidant found in all cell membranes which has an essential role in mitochondrial respiration and also has anti-inflammatory properties.
View Article and Find Full Text PDFBackground: Advanced melanoma patients have an extremely poor long term prognosis and are in strong need of new therapies. The recently developed targeted therapies have resulted in a marked antitumor effect, but most responses are partial and some degree of toxicity remain the major concerns. Dendritic cells play a key role in the activation of the immune system and have been typically used as ex vivo antigen-loaded cell drugs for cancer immunotherapy.
View Article and Find Full Text PDFThe Italian Hub of Population Biobanks (HIBP) includes both ongoing and completed studies that are heterogeneous in both their purpose and in the specimens collected. The heterogeneity in starting conditions makes sharing study data very difficult because of technical, ethical, and collection rights issues that hamper collaboration and synergy. With the aim of overcoming these difficulties and establishing the "proof-of-concept" that sharing studies is achievable among Italian collections, a data-sharing pilot project has been agreed to by HIBP members.
View Article and Find Full Text PDFIntroduction: Since 2002, the European Strategy Forum on Research Infrastructures identified the needs for Research Infrastructures (RIs) in Europe in priority fields of scientific research and drafted a strategic document, the ESFRI Roadmap, defining the specific RIs essential to foster European research and economy. The Biological and Medical Sciences RIs (BMS RIs) were developed thanks to the active participation of many institutions in different European member states associated to address the emerging needs in biomedicine and, among these, the Italian National Institute of Health (ISS), in virtue of its role in public health and research, has been specifically involved in the national development and implementation of three RIs: the Biobanking and Biomolecular Resources Research Infrastructure (BBMRI), the European Advanced Translational Research Infrastructure in Medicine (EATRIS) and the European Clinical Research Infrastructures Network (ECRIN).
Aim: This article outlines the design and development of these RIs up to the recent achievement of the ERIC status, their importance in the Horizon 2020 programme and their societal and economic potential impact, with special attention to their development and significance in Italy.
In Italy, a country that is experiencing the decentralization of health services from central to regional level of government, the Minister of Health is proposing stewardship as a model of governance for the public health system. Stewardship favors efficiency in the policy decision-making process, based on reciprocal trust, and tends to be more ethical. The embryonic proposal to test stewardship in the field of population-based research was advanced during the launching conference Challenges and Opportunities of the Italian Hub of Population Biobanks (HIBP) held in 2012 in Rome.
View Article and Find Full Text PDFThe ethical-legal framework of research biobanking activities is still scarcely defined in Italy, and this constitutes a major obstacle to exploit the potential benefits of existing bioresource patrimony at the national and international levels. Biobanking and Biomolecular Resources Research Infrastructure (BBMRI), which aims to become a major interface between biological samples and data and top-level biological and medical research, is undertaking the crucial transformation to the ERIC (European Research Infrastructure Consortium) legal entity. In this scenario, there is a need to address the national legal and ethical concerns that are strictly correlated with the use of human biosources in research across European countries participating (and not) in BBMRI.
View Article and Find Full Text PDFThis study tested the hypothesis that postprandial triglyceride-rich lipoproteins (ppTGRL) have inflammatory effects in primary human monocyte-derived macrophages (HMDM). ppTGRL were isolated from normolipidemic human volunteers, and the production of chemokines and of inflammatory prostaglandins and leukotrienes via the arachidonic acid cascade in HMDM was determined, and their effect on monocyte chemotaxis were assessed. In addition, the possible role of extracellular lipases in the inflammatory effects of ppTGRL was evaluated.
View Article and Find Full Text PDFThe potential link between the inflammatory effects of postprandial lipemia and the induction of macrophage foam cell formation by triacylglycerol-rich lipoproteins (TGRL) was studied using postprandial triacylglycerol-rich lipoproteins (ppTGRL) derived from human volunteers and primary human monocyte-derived macrophages (HMDM). Subjects were fed a test meal high in dairy fat, followed three hours later by isolation of serum ppTGRL. Pro-inflammatory (M1) and anti-inflammatory (M2) phenotypes were induced in HMDM by treatment with lipopolysaccharide (LPS) or dexamethasone (DEX), respectively.
View Article and Find Full Text PDFOxidative stress is believed to be a major contributory factor in the development of non alcoholic fatty liver disease (NAFLD), the most common liver disorder worldwide. In this study, the effects of high fat diet-induced NAFLD on Coenzyme Q (CoQ) metabolism and plasma oxidative stress markers in rats were investigated. Rats were fed a standard low fat diet (control) or a high fat diet (57% metabolizable energy as fat) for 18 weeks.
View Article and Find Full Text PDFApolipoprotein E-receptor-mediated pathways are the main routes by which macrophages take up chylomicron remnants, but uptake may also be mediated by receptor-independent routes. To investigate these mechanisms, triacylglycerol (TG) accumulation induced by apolipoprotein-free chylomicron remnant-like particles (CRLPw/o) in human monocyte-derived macrophages was evaluated. Macrophage TG content increased about 5-fold after incubation with CRLPw/o, and this effect was not reduced by the inhibition of phagocytosis, macropinocytosis, apolipoprotein E function, or proteoglycan bridging.
View Article and Find Full Text PDFDysregulated inflammation in cystic fibrosis (CF) is attributed to an altered production of inflammatory mediators derived from polyunsaturated lipids. In comparison to the arachidonic acid (AA) cascade, little is known about the modulation of docosahexaenoic acid (DHA) membrane release. We compared data on neutrophil DHA- and AA- release from both control (CT) and patients with CF using [3H]AA or [14C]DHA as a markers for, respectively, AA and DHA- release.
View Article and Find Full Text PDFObjective: The aim of this study was to investigate the development of non-alcoholic fatty liver disease (NAFLD) in response to a high-fat diet in rats and to test the hypothesis that dietary coenzyme Q monomethyl ether (CoQme) has antisteatogenic effects.
Methods: Rats were fed a standard low-fat diet (control) for 18 wk or a diet containing 35% fat (57% metabolizable energy) for 10 wk, then divided into three groups for the following 8 wk. One group was given CoQ9me (30mg/kg body weight per day in 0.
Objective And Design: It is believed that correction of membrane fatty acid deficiency in cystic fibrosis (CF) downregulates the synthesis of proinflammatory mediators. We tested the hypothesis that an increase of the proportion of docosahexaenoic acid (DHA) in the membrane in vitro changes the neutrophil response to Pseudomonas aeruginosa lipopolysaccharide (LPS).
Results: Treatment with DHA increased the secretion of interleukin(IL)-1|*alpha*| by CF neutrophils, but the secretion of other cytokines, CD11b expression, and arachidonic acid (AA) release were not affected either in CF or control (CT) neutrophils.
Macrophage lipid accumulation induced by low density lipoproteins (LDL) plays a pivotal role in atherosclerotic plaque development. Previous work showed that Ocimum basilicum extract, used as hypocholesterolemic agent by traditional medicine in Morocco, has hypolipidemic activity in rat acute hyperlipimidemia. This study investigated the effects of ethanolic extract of O.
View Article and Find Full Text PDFAm J Physiol Endocrinol Metab
December 2007
The effect of lycopene on macrophage foam cell formation induced by modified low-density lipoprotein (LDL) was studied. Human monocyte-derived macrophages (HMDM) were incubated with lycopene in the presence or absence of native LDL (nLDL) or LDL modified by oxidation (oxLDL), aggregation (aggLDL), or acetylation (acLDL). The cholesterol content, lipid synthesis, scavenger receptor activity, and the secretion of inflammatory [interleukin (IL)-1beta and tumor necrosis factor (TNF)-alpha] and anti-inflammatory (IL-10) cytokines was determined.
View Article and Find Full Text PDFPivotal role in atherogenesis is played by macrophages, which are early site for lipid accumulation and mediate the inflammatory and immune response in the intima. Epidemiological evidence indicates that natural antioxidants reduce the risk of heart disease, but, so far, supplementation studies have failed to confirm any protective effects of these compounds against cardiovascular disease. This study evaluated the effects of the natural antioxidant alpha-tocotrienol and of the newly designed compound, FeAOX-6, which combines antioxidant structural features of both tocopherols and carotenoids into a single molecule, on macrophage functions involved in foam cell formation.
View Article and Find Full Text PDFThe influence of the incorporation of the antioxidant tomato pigment, lycopene, into chylomicron remnant-like particles (CRLPs) on their uptake by the liver cells was investigated. CRLPs or CRLPs containing lycopene (lycCRLPs) radiolabelled with [(3)H]triacylglycerol were incubated with cells of the human liver hepatoma cell line, HepG2, and the radioactivity taken up by the cells was determined. LycCRLPs were taken up significantly more slowly than CRLPs over a concentration range of 5-60 microg cholesterol/ml and a time course of 2-6 h.
View Article and Find Full Text PDFSeveral abnormalities of lipid metabolism, including hypo-beta-lipoproteinemia and liver steatosis are associated with infection by hepatitis C virus (HCV). The aim of this study was to determine whether circulating lipoproteins of patients with HCV infection could directly cause alterations of lipid cellular metabolism. To this end the metabolic response of human monocyte-derived macrophages (HMDM) to very low-density lipoprotein (VLDL) and low-density lipoprotein (LDL), measuring the cholesteryl ester (CE) and triglyceride (TG) production was analyzed.
View Article and Find Full Text PDFHyperlipidaemia, atherosclerosis and related diseases are becoming a major health problem in developing countries. Ocimum basilicum is one of the medicinal plants widely used in Morocco to reduce plasma cholesterol and to reduce the risk of atherosclerosis-related diseases. However, mechanisms underlying the reported hypolipidaemic effect of this plant have not been investigated.
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