Publications by authors named "Vito Barbieri"

Vaccines based on mRNA have been fundamental in facing the COVID-19 pandemic, however, they still raise concerns about stability and long-term efficacy. Thus, protein-based vaccines remain valid options and hence the study of effective adjuvants is crucial. Here, we developed a COVID-19 vaccine based on the receptor-binding domain (RBD) of SARS-CoV-2 Spike protein, which is covalently conjugated to the natural polymer hyaluronan (HA) that acts as an immunological adjuvant.

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Introduction: The advocacy Women Against Lung Cancer in Europe (WALCE) promoted the European Program for the Routine Testing of Patients With Advanced Lung Cancer (EPROPA) and provided a free-of-charge molecular profiling platform for NSCLC sample characterization with the aim of increasing the detection of targetable drivers and improving patients' access to clinical trials in Europe.

Methods: From January 2021 to December 2023, 20 centers located at five different European countries (Greece, Slovenia, Romania, Albania, and Italy) joined EPROPA, with 555 patients with advanced NSCLC registered to the program. Anonymized patients' clinical-pathological data were shared through the EPROPA web platform and tissue samples were collected at the Molecular Pathology Unit of the Reference Center (University of Turin) for molecular analyses.

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  • Lu-based radiopharmaceuticals are commonly used for targeted radionuclide therapy, but their limited availability has led to exploring Tb as an alternative due to its beneficial radiation characteristics for both therapy and imaging.
  • The study evaluated cell dosimetry using the MIRDcell code and found that while the localization of radiopharmaceuticals within cells had minor effects on nuclear dose, Tb demonstrated significantly higher dose delivery compared to Lu in small cell clusters.
  • The survival fraction of pancreatic cell clusters showed that while higher labeled cell percentages led to lower survival for Tb, no substantial differences were noted in survival fractions between Tb and Lu when comparing equivalent energy emissions, especially in larger clusters.
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  • Not all patients with Non-Small-Cell Lung Cancer (NSCLC) benefit from immunotherapy due to various factors, highlighting the need for new biomarkers.
  • Current research is exploring biomarkers like the PD1/PDL1 axis, tumor mutational burden, and gut microbiota, which plays a significant role in health and cancer.
  • This review aims to understand how the gut microbiota influences immunotherapy responses and related side effects in NSCLC patients, potentially leading to better treatment management.
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Background: ALK tyrosine kinase inhibitors (TKIs) have revolutionized the treatment and largely improved the survival outcomes of patients with NSCLC harboring rearrangements. Different ALK TKI compounds have demonstrated antitumor activity in these patients and are available in clinical practice. However, clinical expertise across countries varies according to local regulatory approval of different drugs, identifying multiple treatment scenarios to comply with international guidelines and clinical practice.

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Background: We developed a 13-mer locked nucleic acid (LNA) inhibitor of miR-221 (LNA-i-miR-221) with a full phosphorothioate (PS)-modified backbone. This agent downregulated miR-221, demonstrated anti-tumor activity against human xenografts in mice, and favorable toxicokinetics in rats and monkeys. Allometric interspecies scaling allowed us to define the first-in-class LNA-i-miR-221 safe starting dose for the clinical translation.

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TACE plays a pivotal role in hepatocellular carcinoma, from disease control to downstaging and bridging to liver transplant. Response to TACE is a surrogate marker of tumor aggressive biology, with manifold practical implications such as survival, the need for more aggressive treatments in the intermediate stage, the selection of patients on the transplant waiting list, the dropout rate from the transplant list and the post-transplant recurrence rate. Inflammation-based scores are biomarkers of the relationship between the tumor stromal microenvironment and the immune response.

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  • Juvenile myelomonocytic leukemia (JMML) is a rare childhood cancer defined by the overactivation of the RAS pathway in most patients, featuring high levels of granulocytes and monocytes.
  • Researchers developed a novel 3D model called patient-derived JMML Atypical Organoid (pd-JAO) that allows long-term growth and study of JMML cells with stem cell characteristics while mimicking the disease's microenvironment.
  • The study shows that these JMML cells gain growth advantages under low oxygen levels, revealing important insights into their metabolism, migration, and self-renewal, which could aid in the testing of new treatments to target JMML effectively.
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Carboplatin is the cornerstone of ovarian cancer (OC) treatment, while platinum-response, dependent on interindividual variability, is the major prognostic factor for long-term outcomes. This retrospective study was focused on explorative search of genetic polymorphisms in the Absorption, Distribution, Metabolism, Excretion (ADME) genes for the identification of biomarkers prognostic/predictive of platinum-response in OC patients. Ninety-two advanced OC patients treated with carboplatin-based therapy were enrolled at our institution.

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  • Metastatic breast cancer cells thrive in soft microenvironments, which influence their response to cancer treatments, particularly their resilience against oxidative stress.
  • Research reveals that a soft extracellular matrix enhances mitochondrial activity and increases the production of reactive oxygen species, leading to a stronger antioxidant response in cancer cells.
  • In mouse models, disrupting specific mitochondrial dynamics and antioxidant pathways can restore sensitivity to chemotherapy drugs like cisplatin, suggesting new strategies to prevent cancer recurrence.
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Immune checkpoint inhibitors (ICIs) represent an important advance in the adjuvant treatment of patients with high-risk melanoma. Although the safety profile of anti-programmed cell death protein-1 (PD-1) is fairly acceptable, different immune-related adverse events (irAEs) are described. Herein we report for the first time a notably multidisciplinary combined approach on a malignant melanoma (MM) patient treated with anti-PD-1 antibody in adjuvant setting.

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An immune checkpoint blockade with mAbs to PD-1 and PD-L1 is an expanding therapeutic option for mNSCLC patients. This treatment strategy is based on the use of mAbs able to restore the anti-tumor activity of intratumoral T cells inhibited by PD-1 binding to PD-L1/2 on tumor and inflammatory cells. It has been speculated that a chronic status of systemic inflammation as well as the immunosenescence physiologically occurring in elderly patients may affect the efficacy of the treatment and the occurrence of irAEs.

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Li-Fraumeni syndrome (LFS) is an inherited autosomal dominant disease characterized by a predisposition to many cancers. Germline pathogenic variants in are primarily responsible for LFS. By performing a targeted sequencing panel in a proband with liver carcinoma having a deceased son affected by osteosarcoma, we found the novel heterozygous frameshift variant c.

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Background: Cutaneous squamous cell carcinoma (cSCC) has an overall favourable outcome, except for patients with an advanced stage disease. The programmed death protein-1 (PD-1) inhibitor cemiplimab has been approved for use in advanced cSCC. We report clinical outcomes from the named patient programme-compassionate use of cemiplimab for patients with advanced cSCC in Italy.

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  • Vaccine research aims to develop safe and biocompatible adjuvants that enhance immune responses.
  • The natural polymer hyaluronan (HA) has shown potential as an effective immunological adjuvant, improving immunogenicity and reducing the need for booster shots.
  • HA’s biocompatibility allows for various injection methods and promotes efficient antigen delivery to immune cells, making it a valuable option for vaccine development.
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Background: Immune checkpoint inhibitors targeting cytotoxic T lymphocyte-associated antigen 4 (CTLA-4), programmed death-1 receptor (PD-1), and programmed death-1 receptor and its ligand (PD-L1) increased the survival of patients affected by metastatic malignant melanoma. Due to their mechanism of action, these drugs are associated with a unique toxicity profile. Indeed, immune-related adverse events (irAEs) present a wide clinical spectrum representing the Achilles' heel of immunotherapy.

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  • - Nivolumab is a targeted cancer therapy for metastatic non-small cell lung cancer (mNSCLC) that helps restore the function of T cells but can lead to immune-related side effects and has no clear predictive biomarkers for treatment success.
  • - A study analyzed 119 mNSCLC patients treated with nivolumab to examine the effects of specific HLA genetic variations on treatment outcomes and side effect frequency.
  • - Results showed that the presence of certain HLA-A alleles (like HLA-A*01) correlated with better patient survival rates, suggesting that HLA genotyping could help predict treatment efficacy and inform future cancer immunotherapy research.
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Prostate cancer (PCa) has become the most common cancer among males in Europe and the USA. Adoptive immunotherapy appears a promising strategy to control the advanced stages of the disease by specifically targeting the tumor, in particular through chimeric antigen receptor T (CAR-T) cell therapy. Despite the advancements of CAR-T technology in the treatment of hematological malignancies, solid tumors still represent a challenge.

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Immune checkpoint blockade is an emerging anticancer strategy, and Nivolumab is a human mAb to PD-1 that is used in the treatment of a number of different malignancies, including non-small cell lung cancer (NSCLC), kidney cancer, urothelial carcinoma and melanoma. Although the use of Nivolumab prolongs survival in a number of patients, this treatment is hampered by high cost. Therefore, the identification of predictive markers of response to treatment in patients is required.

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Casein kinase 1 delta (CK1δ) has a tumor-promoting role in different cancers and it is genetically amplified in a portion of human epithelial ovarian cancer (EOC). CK1δ is involved in pleiotropic cellular functions such as cell proliferation, DNA damage, and migration. We specifically knocked down CK1δ by short hairpin RNA (shRNA) in human ovarian cancer cells and we performed proliferation, chemosensitivity, as well as and migration assays.

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  • * Data from 92 mNSCLC patients receiving Nivolumab showed median progression-free survival (PFS) and overall survival (OS) of 10 and 16 months, with factors such as male gender and previous treatments positively influencing survival outcomes.
  • * Early detection of multiple auto-antibodies (AAbs) in patients correlated with longer PFS and OS, suggesting that elevated levels of certain antibodies may serve as helpful predictors for positive responses to Nivolumab therapy.
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Background: Genomic instability is a feature of multiple myeloma (MM), and impairment in DNA damaging response (DDR) has an established role in disease pathobiology. Indeed, a deregulation of DNA repair pathways may contribute to genomic instability, to the establishment of drug resistance to genotoxic agents, and to the escape from immune surveillance. On these bases, we evaluated the role of different DDR pathways in MM and investigated, for the first time, the direct and immune-mediated anti-MM activity of the nucleotide excision repair (NER)-dependent agent trabectedin.

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In the era of personalized cancer therapy, the sampling of adequate tumor tissue for histologic diagnosis and genomic profiling is crucial, not only at the initial diagnosis but also in the event of resistant and recurrent disease when sequential biopsies may be required to evaluate somatic mutations and histologic changes. Areas covered: The identification of genetic driver alterations led to the selection of patients who are most likely to benefit from epidermal growth factor receptor (EGFR) and anaplastic lymphoma kinase (ALK) and rat osteosarcoma (ROS-1) tyrosine kinase inhibitors; on the other hand, in the absence of oncogenic alterations, platinum-based doublet chemotherapy regimens were the cornerstone of treatment. However, the advent of immunotherapy has widely changed the first-line treatment.

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  • The project aims to improve communication between oncologists and lung cancer patients by creating a communication model that incorporates real experiences and innovative treatment options.
  • It involved a structured approach, including defining the diagnostic process, identifying communication barriers, and providing training through videos and a manual.
  • The results indicate that a one-size-fits-all communication model is ineffective; instead, practical suggestions tailored to individual clinician-patient dynamics can enhance communication in medical practice.
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