Publications by authors named "Daniela Vivenza"

The Usutu virus (USUV) has recently attracted the attention of scientists because of its rapid spread across Europe and its growth over the previous seasons in Italy. Here, we describe the first case of USUV infection in Asti, Piedmont region, Italy. The patient remained asymptomatic in the acute phase and during the early follow-up, despite a mild increase in liver enzymes.

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Bromodomain-containing protein 7 (BRD7) is a member of the bromodomain-containing protein family. Previous studies suggest that BRD7 is predominantly localized in the nucleus, wherein it functions as a transcriptional regulator. Several lines of evidence imply a tumour suppressor function for BRD7.

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Background: Biomarkers predictive of response to chemoradiotherapy (CRT) regimens for locally advanced head and neck squamous cell carcinoma (LA-HNSCC) are urgently required to identify patients in whom this approach is likely to be effective. TP53 mutations and epidermal growth factor (EGFR) overexpression are common markers of disease. Dual-specificity-phosphatase-2 (DUSP2) has an essential role in cell proliferation, cancer and immune responses.

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Unlabelled: Aldosterone synthase (CYP11B2) is as an 9-exon gene on chromosome 8q22 and exists as a common single nucleotide polymorphism C-T transition for position -344. The aim of this study was to assess the -344T/C polymorphism of the aldosterone synthase promoter in a European continental ancestry congestive heart failure (CHF) population.

Methods: Patients discharged after an acute decompensation were enrolled and underwent echocardiography, determination of BNP, evaluation of non-invasive cardiac outputs and determination of -344 T/C SNP in the aldosterone synthase gene.

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Background: Antibody-dependent cell-mediated cytotoxicity (ADCC) may contribute to the antitumor activity of cetuximab. However, the extent of this contribution is unclear. In this study, we investigated the impact of baseline ADCC on the outcome of patients with locally advanced squamous cell carcinoma treated with cetuximab and radiotherapy.

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Malignant melanoma (MM) is a highly aggressive skin cancer with high incidence worldwide. It originates from melanocytes and is characterized by invasion, early metastasis and despite the use of new drugs it is still characterized by high mortality. Since an early diagnosis determines a better prognosis, it is important to explore novel prognostic markers in the management of patients with MM.

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Aim: To reviewing genetic and epigenetic make-up of metastatic colorectal cancers (mCRCs) addicted to epidermal growth factor receptor (EGFR) signalling.

Methods: The present study summarizes the potential value of prognostic and predictive biomarkers in selecting mCRC patients treated with anti-EGFR therapy. A meta-analysis was performed using a systematic search of PubMed, Medline and Web of Science to identify eligible papers until March 21(st), 2016 using these following terms: ''colorectal cancer'', "predictive biomarkers'', "anti-EGFR therapy", "KRAS", "NRAS'', "PIK3CA", "TP53", "PTEN", ''EGFR", "MET", "HER2", "epiregulin", "amphiregulin", "prognostic biomarkers", "BRAF", "miRNA" and "antibody-dependent cell-mediated cytotoxicity (ADCC) activity".

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Background/aim: Head and neck cancer (HNC) is characterized by epidermal growth factor receptor (EGFR) overexpression and radiotherapy (RT) resistance. Cancer cells are able to survive and proliferate in hypoxic conditions. Hypoxia can be transiently interrupted by phases of reoxygenation.

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Purpose: HPV-related locally advanced head and neck cancers (LA-HNCs) show a good prognosis. This study aimed to investigate the HPV prevalence in LA-HNCs and compare the prognostic value of E1, E6 and L1 genomic viral fragments and p16, individually and in combination, in order to find the best prognosticator in terms of overall survival (OS) and progression-free survival (PFS).

Patients And Methods: HPV16 was searched in 255 LA-HNC formalin-fixed paraffin-embedded tumor tissues, 89 oropharyngeal cancers (OPCs), and 166 non-OPCs by DNA-PCR with 3 primer pairs.

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Aberrant epidermal growth factor receptor (EGFR) signaling is associated with tumor growth in head and neck squamous cell carcinoma (HNSCC) and is a major focus of targeted therapy. The phosphatidylinositol-3-kinase/AKT/mammalian target of the rapamycin (PI3K/AKT/mTOR) signaling pathway is frequently mutated in HNSCC and is involved in disease progression and resistance to EGFR inhibitors. The aim of this study was to assess the antiproliferative effects of mTOR inhibition (temsirolimus) combined with the anti-EGFR monoclonal antibody cetuximab, administered according to different combination schedules.

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Purpose: Adequate biomarkers are still required to optimize therapy in patients with locally advanced head and neck squamous carcinomas (HNSCC) treated with chemoradiotherapy (CRT).

Methods: We updated the follow-up of 66 HNSCC patients treated with CRT we described more than 10 years ago, focusing on SNP Arg/Pro (R/P) at codon 72 and somatic mutations in TP53 and on SNP309 in the MDM2 gene.

Results: In wild-type TP53 cases, overall survival (OS) was longer in 72RR and less favorable in 72PP (p = 0.

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Aim: To investigate the prognostic role of invariant natural killer T (iNKT) cells and antibody-dependent cell-mediated cytotoxicity (ADCC) in wild type KRAS metastatic colorectal cancer (mCRC) patients treated with cetuximab.

Methods: Forty-one KRAS wt mCRC patients, treated with cetuximab and irinotecan-based chemotherapy in II and III lines were analyzed. Genotyping of single nucleotide polymorphism (SNP)s in the FCGR2A, FCGR3A and in the 3' untranslated regions of KRAS and mutational analysis for KRAS, BRAF and NRAS genes was determined either by sequencing or allelic discrimination assays.

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Background: p16 has been indicated as a suitable surrogate biomarker of HPV infection. The prognosis of p16-positive oropharynx tumors (OTs) of squamous cell carcinoma (SCC) histology is better than that of p16-negative tumors.

Methods: We analyzed 209 samples of head and neck SCC to establish a predictive cutoff for p16 and determine the role of p16 positivity in OTs versus non-OTs.

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Background: Advances in the understanding of tumor biology have led to the development of targeted therapies as monoclonal antibodies (MoAbs) in clinical oncology. Among their suggested mechanisms of action monoclonal antibodies (IgG1) selectively directed against tumor membrane receptors mediate of antibody-dependent cellular cytotoxicity (ADCC) by triggering Fc-γRIII on natural killer (NK) cells.

Methods: This study reviews the clinical context of ADCC measurement with a particular focus on EGFR targeting and describes an ex vivo ADCC method applied to MoAbs (cetuximab and panitumumab), against epidermal growth factor receptor (EGFR).

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Introduction In complement to anti-EGFR therapy, the targeting of PI3K/AKT/mTOR signaling pathway is of particular interest in the management of Head and Neck Squamous Cell Carcinoma (HNSCC). Here, we assess the effects of PI3K inhibition combined with anti-EGFR monoclonal antibody cetuximab and/or irradiation (RT). Material and methods Anti-proliferative effects of the combination of buparlisib (a specific PI3K inhibitor), cetuximab and RT was determined in two HNSCC cell lines (CAL33, PI3KCA H1047R-mutated and CAL27, PI3KCA wild-type).

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It is already well known that hypermethylation of the O6-methylguanine DNA methyltransferase (MGMT) gene promoter is a predictive biomarker of response to temozolomide treatment and of favorable outcomes in terms of overall survival (OS) and progression-free survival (PFS) in glioblastoma (GBM) patients. Nevertheless, MGMT methylation status has not currently been introduced into routine clinical practice, as the choice of the ideal technique and tissue sample specimen is still controversial. The aim of this study was to compare 2 analytical methods, methylation-specific polymerase chain reaction (MSP) and pyrosequencing (PSQ), and their use on 2 different tissue type samples, snap-frozen and formalin-fixed paraffin-embedded (FFPE), obtained from a single-center and uniformly treated cohort of 46 GBM patients.

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Background: Anthracyclines are among the most active drugs against breast cancer, but can exert cardiotoxic effects eventually resulting in congestive heart failure (CHF). Identifying breast cancer patients at high risk of developing cardiotoxicity after anthracycline therapy would be of value in guiding the use of these agents.

Aims: We determined whether polymorphisms in the renin-angiotensin-aldosterone system (RAAS) and in the glutathione S-transferase (GST) family of phase II detoxification enzymes might be useful predictors of left ventricular ejection fraction (LVEF) kinetics and risk of developing CHF.

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Chemo-radiotherapy (CRT) with cisplatin-based regimens is curative in a subset of patients with locally advanced (stage III and IV) squamous carcinomas of the head and neck (LAHNSCC), but causes considerable toxicity. To seek predictive biomarkers, we analysed single nucleotide polymorphisms (SNPs) in the p53 and MDM2 genes in LAHNSCC patients treated with cisplatin-based CRT. We analysed germ-line p53 72 Arg/Pro (R/P) and MDM2 309 SNPs and somatic p53 mutational status in 140 LAHNSCC and determined their utility as predictive biomarkers.

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Anthracyclines are active drugs against breast cancer, but can exert cardiotoxic effects. We analyzed the association between the kinetics of various biomarkers during chemotherapy, and the risk of subsequent cardiac toxicity. 50 patients (49 women) with early breast cancer surgically treated and eligible to anthracycline-based adjuvant chemotherapy were analyzed.

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Objective: Mutations in HESX1 represent a rare cause of GH deficiency (GHD) associated with a broad spectrum of other anomalies. We searched for causative mutations in a cohort of 244 Italian patients affected by combined and isolated GHD (IGHD).

Methods: The HESX1 gene-coding region and exon-intron boundaries were screened by denaturing HPLC scanning.

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Objective: The aim of the study was to examine clinical characteristics, biochemical parameters, and TSH-R gene variations in children and adolescents with subclinical hypothyroidism (SH) in order to evaluate their pattern of distribution in SH.

Patients: We enrolled 88 patients, each having at least two TSH measurements above the upper limit of the reference range with normal free thyroid hormones and negative thyroid autoantibodies.

Main Outcome Measures: Clinical characteristics included height, weight, family history of thyroid diseases, thyroid volume, and echogenicity at ultrasonography.

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Aim: To assess validity of culture on four-sector agar plates and fluorescent in-situ hybridization (FISH) test, and clarithromycin resistance rate in Helicobacter pylori strains isolated from children in the last 10 years.

Methods: In the last 5 years, gastric biopsy specimens from antrum and fundus were taken from 89 consecutive children (median age 9 years) with H. pylori gastritis and from 21 controls.

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Context: Causal mutations have been detected only in a minority of isolated GH deficiency (IGHD) patients. Idiopathic IGHD might be the result of the interaction between several low-penetrance genetic factors and the environment.

Objective: The aim of this study was to test the contribution to IGHD of genetic variations in the GH1 gene regulatory regions.

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Background: A protective effect of Helicobacter pylori infection against allergic diseases has been reported. The increasing incidence of childhood allergy in developed countries may be a result of reduced stimulation of the immune system by early chronic infections, with the protective effect of gastrointestinal microbes being mediated by regulatory T lymphocytes and production of interleukin (IL)-10. To elucidate a possible mechanism involved in protecting against the development of atopy, we measured expression of IL-10 in gastric mucosa of children with H pylori gastritis.

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Context: The majority of mutations responsible for isolated GH type II deficiency (IGHD II) lead to dominant negative deleteriously increased levels of the GH1 exon 3 skipped transcripts.

Objective: The aim of this study was the characterization of the molecular defect causing a familial case of IGHD II.

Patients: A 2-yr-old child and her mother with severe growth failure at diagnosis (-5.

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