Publications by authors named "Luigi Barzan"

Article Synopsis
  • Head and Neck Squamous Cell Cancer (HNSCC) is a significant health concern, ranking sixth among global cancers, with a pressing need for new therapies and biomarkers due to slow advancements in treatment personalization.!* -
  • This study analyzed the somatic mutations in 15 specific genes related to HNSCC in a high-incidence area of Italy, finding unique mutation patterns that may have prognostic implications, particularly in the hypopharyngeal region.!* -
  • The research revealed that while certain mutations indicate poorer prognosis, they currently lack sufficient evidence to be used as predictive biomarkers, highlighting the necessity for further studies to improve treatment options for HNSCC patients.!*
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Head and neck cancer is often diagnosed late and prognosis for most head and neck cancer patients remains poor. To aid early detection, we developed a risk prediction model based on demographic and lifestyle risk factors, human papillomavirus (HPV) serological markers and genetic markers. A total of 10 126 head and neck cancer cases and 5254 controls from five North American and European studies were included.

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Objective: The prognostic significance of the resection margins is still subject of conflicting opinions. The purpose of this paper is to report the results of a study on the margins in carcinoma of the oral cavity, oro-hypopharynx and larynx.

Methods: A multicentre prospective study was carried out between 2015 and 2018 with the participation of 10 Italian reference hospitals.

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Radiotherapy (RT) plus the anti-EGFR monoclonal antibody Cetuximab (CTX) is an effective combination therapy for a subset of head and neck squamous cell carcinoma (HNSCC) patients. However, predictive markers of efficacy are missing, resulting in many patients treated with disappointing results and unnecessary toxicities. Here, we report that activation of EGFR upregulates miR-9 expression, which sustains the aggressiveness of HNSCC cells and protects from RT-induced cell death.

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The CDKN1B gene, encoding for the CDK inhibitor p27 , is mutated in defined human cancer subtypes, including breast, prostate carcinomas and small intestine neuroendocrine tumors. Lessons learned from small intestine neuroendocrine tumors suggest that CDKN1B mutations could be subclonal, raising the question of whether a deeper sequencing approach could lead to the identification of higher numbers of patients with mutations. Here, we addressed this question and analyzed human cancer biopsies from breast (n = 396), ovarian (n = 110) and head and neck squamous carcinoma (n = 202) patients, using an ultra-deep sequencing approach.

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With the aim to dissect the effect of adult height on head and neck cancer (HNC), we use the Mendelian randomization (MR) approach to test the association between genetic instruments for height and the risk of HNC. 599 single nucleotide polymorphisms (SNPs) were identified as genetic instruments for height, accounting for 16% of the phenotypic variation. Genetic data concerning HNC cases and controls were obtained from a genome-wide association study.

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Background: Inclusion of new biomarkers to improve a personalized treatment approach for oropharyngeal squamous cell carcinoma (OPSCC) is urgently needed. Hypomethylation of the Long interspersed nucleotide element-1 (LINE-1) repetitive elements, a widely accepted surrogate of overall genomic DNA methylation content, was found to be associated with a poor prognosis in several cancers. At present, no studies have investigated the influence of LINE-1 methylation levels on OPSCC relapse.

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Objectives: To evaluate the impact of time to treatment initiation (TTI) on overall survival in patients with head-and-neck squamous cell carcinoma (HNSCC).

Materials And Methods: In the period 2003-2009, 1616 HNSCC patients were diagnosed in Friuli Venezia Giulia Region, Northeastern Italy, including 462 oral, 346 oropharyngeal, 212 hypopharyngeal, and 596 laryngeal cancers. Clinical information, including date and type of first treatment, and follow-up were retrieved from the regional Cancer Registry and a population-based health database collecting comprehensive health information on people living in the Region.

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Head and neck squamous cell carcinomas (HNSCCs) cause more than 300,000 deaths worldwide each year. Locoregional and distant recurrences represent worse prognostic events and accepted surrogate markers of patients' overall survival. No valid biomarker and salvage therapy exist to identify and treat patients at high-risk of recurrence.

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Although promising, clinical responses to adoptive immunotherapy for nasopharyngeal carcinoma (NPC) are still limited by the restricted number of Epstein-Barr virus (EBV) antigens that can be targeted and their poor immunogenicity. Our previous work indicated that the immunogenic features of the NPC-associated viral antigen BARF1 may be exploited for immunotherapeutic purposes. Nevertheless, T-cell lines obtained with current protocols include only negligible numbers of BARF1-specific cytotoxic T lymphocytes, pointing to the need to enrich these effectors in BARF1 specificities.

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The paper by Rachidi et al. suggests that antiplatelet drugs may play a role in ameliorating the clinical outcome in a large series of patients with head and neck cancer managed with either surgery or radiation. Our data, as well as confirming the results observed by the authors, enhance their clinical relevance pointing out the effect of antiplatelet drugs in terms of locoregional control in the setting of patients with advanced head and neck cancer managed with definitive chemo-radiotherapy.

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Objective: The aim of this study was to evaluate the oncologic outcomes after a selective neck dissection (SND), both in elective and therapeutic settings, with particular regard to regional recurrence rate.

Methods: Retrospective analysis of 827 patients with head and neck primary tumors submitted to SND from 1999 to 2011 in two large hospital centers of northern Italy.

Results: A total of 40 neck recurrences were found in the whole series, with the same incidence after primary or salvage surgery (4.

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Deleterious BRCA2 genetic variants markedly increase risk of developing breast cancer. A rare truncating BRCA2 genetic variant, rs11571833 (K3326X), has been associated with a 2.5-fold risk of lung squamous cell carcinoma but only a modest 26% increase in breast cancer risk.

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Genetic variants located within the 12p13.33/RAD52 locus have been associated with lung squamous cell carcinoma (LUSC). Here, within 5,947 UADT cancers and 7,789 controls from 9 different studies, we found rs10849605, a common intronic variant in RAD52, to be also associated with upper aerodigestive tract (UADT) squamous cell carcinoma cases (OR = 1.

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Article Synopsis
  • The study evaluated the link between oral health (OH), dental care (DC), and mouthwash use with the risk of upper-aerodigestive tract (UADT) cancers by analyzing data from nearly 4,000 patients and controls.
  • Results indicated that low scores in OH and DC significantly increased the risk of UADT cancers, with odds ratios of 2.36 and 2.22, respectively, while frequent mouthwash users had a notably higher odds ratio of 3.23.
  • Additionally, some genetic factors related to alcohol metabolism appeared to influence mouthwash's effect on cancer risk, but the overall impact of mouthwash's alcohol content on cancer risk remains uncertain.
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Some studies examined the inverse relation between nasopharyngeal carcinoma (NPC) risk and dietary fibers in endemic populations. By means of a hospital-based case-control study, we verified whether this association was also present in Italy in connection with various types of dietary fibers. Cases were 198 patients with incident, histologically confirmed, NPC admitted to major teaching and general hospitals during 1992-2008.

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Although previous studies on tobacco and alcohol and the risk of upper-aerodigestive-tract (UADT) cancers have clearly shown dose-response relations with the frequency and duration of tobacco and alcohol, studies on addiction to tobacco smoking itself as a risk factor for UADT cancer have not been published, to our knowledge. The aim of this report is to assess whether smoking addiction is an independent risk factor or a refinement to smoking variables (intensity and duration) for UADT squamous cell carcinoma (SCC) risk in the multicenter case-control study (ARCAGE) in Western Europe. The analyses included 1,586 ever smoking UADT SCC cases and 1,260 ever smoking controls.

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Purpose: The role of dietary habits in the etiology of nasopharyngeal carcinoma (NPC) has been extensively investigated in high-incidence areas, but evidence is scanty in low-incidence populations. This study aimed to investigate the relationship between NPC risk and a wide range of food groups in the Italian population.

Methods: We conducted a hospital-based case-control study in Italy on 198, histologically confirmed, NPC cases of Caucasian ethnicity, aged 18-76 years.

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Unlabelled: The type of surgery for benign parotid tumors is still lacking of general consensus: this retrospective study, from 1964 to 2004 with a minimum follow-up of 7 years, is carried out with the aim to evaluate the results of parotidectomy and extracapsular dissection (ECD).

Patients And Methods: Three hundred forty-nine pts were operated for pleomorphic adenoma (219) or cystadenolymphoma (165). ECD was performed in 332 pts and parotidectomy in 52.

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The general relationship between cancers of the upper aerodigestive tract (UADT) and alcohol drinking is established. Nevertheless, it is uncertain whether different types of alcoholic beverages (wine, beer and liquor) carry different UADT cancer risks. Our study included 2,001 UADT cancer cases and 2,125 controls from 14 centres in 10 European countries.

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Background: Genome-wide association studies (GWAS) require large sample sizes to obtain adequate statistical power, but it may be possible to increase the power by incorporating complementary data. In this study we investigated the feasibility of automatically retrieving information from the medical literature and leveraging this information in GWAS.

Methods: We developed a method that searches through PubMed abstracts for pre-assigned keywords and key concepts, and uses this information to assign prior probabilities of association for each single nucleotide polymorphism (SNP) with the phenotype of interest--the Adjusting Association Priors with Text (AdAPT) method.

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Background: The role of sentinel node biopsy in head and neck cancer is currently being explored. Patients with positive sentinel nodes were investigated to establish if additional metastases were present in the neck, their distribution, and their impact on outcome.

Methods: In all, 109 patients (n = 109) from 15 European centers, with cT1/2,N0 tumors, and a positive sentinel lymph node were identified.

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Head and neck squamous cell carcinomas (HNSCC) are a heterogeneous group of tumors with variable presentation and clinical behavior. Despite improvements in surgical and radiation therapy techniques, the 5-year survival rate has not improved significantly over the past decades. Thus, there is an urgent need to identify novel markers that may allow for the development of personalized therapeutic approaches.

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To evaluate the outcome of Undifferentiated Nasopharyngeal Carcinomas (UCNT) treated with intensity-modulated radiation therapy with Simultaneous Integrated Boost (SIB), following induction chemotherapy. Between January 2006 and June 2009, 52 patients with stage II B-IVA/B UCNT were treated either with linac-IMRT or Tomotherapy. All patients were scheduled to receive three cycles of cisplatin based neoadjuvant chemotherapy.

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Tobacco and alcohol are major risk factors for upper aerodigestive tract (UADT) cancer and significant variation is observed in UADT cancer rates across Europe. We have estimated the proportion of UADT cancer burden explained by tobacco and alcohol and how this varies with the incidence rates across Europe, cancer sub-site, gender and age. This should help estimate the minimum residual burden of other risk factors to UADT cancer, including human papillomavirus.

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