Publications by authors named "Roberta Minari"

The Gruppo Oncologico Italiano di Ricerca Clinica (GOIRC) is Italy's first cooperative oncology research group, evolving to conduct academic clinical trials since 1985. With 167 publications and collaborations with national and international partners, GOIRC has significantly impacted clinical practices. The group emphasizes training and has developed robust internal standard operative procedures (SOPs) to enhance data quality.

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Purpose: To uncover the underpinnings of acquired resistance (AR) to immunotherapy (IO), we determined whether distinctive clinico-pathological, radiomic and peripheral blood (PB) immune-inflammatory features reflect oligo- and systemic (sys)-AR in advanced NSCLC patients undergoing immune checkpoints inhibitors.

Experimental Design: On 105 consecutive IO-treated advanced NSCLC, PB immunophenotypes, cytokines and CT-derived radiomic features (RFs), extracted from primary and merged metastatic lesions, were prospectively collected at baseline (T0) and first disease assessment (T1, 9-12 weeks), and their delta (Δ) variation [(T1-T0)/T0] computed. AR, defined as progression after initial response (complete/partial) or stable disease ≥ 6 months, was subdivided according to the number of new and/or progressive lesions in oligoAR (≤3) and sysAR (>3).

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Objectives: Despite the outstanding results achieved by osimertinib for the treatment of advanced EGFR-mutated NSCLC, the development of resistance is almost inevitable. While molecular mechanism responsible for osimertinib resistance are being mostly revealed, the definition of predictive biomarkers is crucial in order to identify patients at higher risk of progression and optimize treatment strategy.

Materials And Methods: This is a prospective single-center study aimed to assess the potential role of liquid biopsy and 18F-FDG PET/CT derived metabolic parameters as noninvasive predictive biomarkers of osimertinib outcomes in advanced EGFR-mutated NSCLC patients.

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Article Synopsis
  • The study investigates if tracking changes in CT radiomic features and systemic inflammatory indices over time is better at predicting survival for advanced non-small cell lung cancer (NSCLC) patients treated with immune checkpoint inhibitors compared to a one-time assessment.
  • Researchers analyzed data from 90 NSCLC patients, calculating variations in radiomic features from initial treatment to first disease assessment, and found that these changes (Δ-RAD) were more predictive of overall survival (OS) than baseline measures alone.
  • The best predictive results came from combining Δ-RAD with longitudinal clinical and inflammatory data, achieving significant improvements in overall survival predictions and allowing better patient risk stratification.
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The combination of BRAF and MEK inhibitors demonstrated significant clinical benefit in patients with BRAF-mutant non-small cell lung cancer (NSCLC). However, the molecular mechanisms of acquired resistance to BRAF and MEK inhibition in NSCLC are still unknown. Herein, we report a case of a 76-year-old man with a history of smoking who was diagnosed with BRAF V600E-mutant lung adenocarcinoma (PD-L1 > 50%) and subsequently candidate to first-line therapy with pembrolizumab.

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The study investigated the relationship between serum proinflammatory cytokine levels, cholesterol metabolism, and clinical outcome in cancer patients undergoing immune checkpoint inhibitors (ICIs). Peripheral blood was collected before therapy from ICI-treated advanced cancer patients. We retrospectively assessed plasma total cholesterol (TC), ABCA1- and ABCG1-mediated cholesterol efflux (CE), passive diffusion (PD), cholesterol loading capacity (CLC), and serum IL-6, IL-10, and TNF-α.

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Article Synopsis
  • Scientists are using special tests called biomarkers to help treat cancer patients, especially those with lung cancer.
  • In one case, a patient had a rare type of lung cancer, and advanced tests found unusual changes in their genes.
  • The results from these tests helped the doctors decide the best treatment for the patient, showing how important it is to understand the details of each person's cancer.
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Introduction: Germline pathogenic mutations in gene are associated with a cancer predisposition syndrome known as Li Fraumeni syndrome. Albeit infrequently, non-small cell lung cancer, especially as oncogene-addicted disease, may be diagnosed in young patients with Li Fraumeni syndrome.

Case Description: We report three cases of patients affected by Li Fraumeni syndrome who developed non-small cell lung cancer with or exon 20 insertions.

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Osimertinib, a tyrosine kinase inhibitor targeting mutant EGFR, has received approval for initial treatment in patients with Non-Small Cell Lung Cancer (NSCLC). While effective in both first- and second-line treatments, patients eventually develop acquired resistance. Metabolic reprogramming represents a strategy through which cancer cells may resist and adapt to the selective pressure exerted by the drug.

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Article Synopsis
  • Osimertinib, an EGFR tyrosine kinase inhibitor, is effective for treating EGFR-mutated Non-Small Cell Lung Cancer (NSCLC), but patients often develop resistance, which is not fully understood.
  • This study found that resistant NSCLC cells had higher levels of glycosylceramides, specifically glucosylceramides (GlcCers), and inhibiting the enzyme GCS led to significant anti-cancer effects, including cell cycle arrest and apoptosis.
  • Furthermore, in animal models, the GCS inhibitor PDMP notably suppressed tumor growth, suggesting that targeting ceramide metabolism could be a promising strategy for overcoming osimertinib resistance in NSCLC patients.
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Article Synopsis
  • * These genes are critical for maintaining genetic integrity through homologous recombination (HR) DNA repair, which fixes DNA double-strand breaks effectively.
  • * The review discusses the role of HR and its impact on the efficacy of poly (ADP-ribose) polymerase (PARP) inhibitors as a treatment, while also exploring the genetic factors and risk assessment approaches that could enhance strategies for prevention and treatment of these cancers.
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Background: Cell-cycle regulators are mutated in approximately 40% of all cancer types and have already been linked to worse outcomes in non-small cell lung cancer adenocarcinomas treated with osimertinib. However, their exact role in osimertinib resistance has not been elucidated.

Objective: In this study, we aimed to evaluate how the CDK4/6-Rb axis may affect the sensitivity to osimertinib.

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Background: Specific components of lipid profile seem to differently impact on immune activity against cancer and unraveling their prognostic role in patients with solid cancer treated with immune checkpoint inhibitors (ICIs) is needed.

Materials And Methods: We retrospectively collected baseline clinicopathological characteristics including circulating lipid profile (total cholesterol [TC], triglycerides [TG], low-density lipoproteins [LDL], high-density lipoproteins [HDL]) of patients with consecutive solid cancer treated with ICIs, and we investigated their role in predicting clinical outcomes.

Results: At a median follow-up of 32.

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Objectives: Liquid biopsy with next-generation sequencing (NGS) has emerged as a promising tool for tumor mutation profiling. In this study, we describe the genomic profile of Italian lung cancer patients tested with blood-based comprehensive genomic profiling (CGP) to assess the genomic landscape complexity and its impact on enhancing treatment options for patients.

Materials And Methods: Between January 2021 and December 2021, a total of 229 lung cancer patients were profiled by FoundationOne®Liquid CDx (F1LCDx®) assay on circulating tumor DNA (ctDNA).

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Introduction: This study aimed to evaluate a potential relationship between the diffusing capacity of the lung for carbon monoxide (DLCO) and the aggressiveness of lung adenocarcinoma (ADC).

Methods: Patients who underwent radical surgery for lung ADC between 2001 and 2018 were retrospectively reviewed. DLCO values were dichotomized into DLCO (<80% of predicted) and DLCO (≥80%).

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Introduction: Immune checkpoint inhibitors (ICIs) became the standard of care for several solid tumors. A limited fraction of patients (pts) achieves a long-term benefit. Plasmatic and intracellular cholesterol levels have emerged as promising biomarkers.

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Background: Operable stage I-III non-small cell lung cancer (NSCLC) has a high risk of recurrence, mainly due to remnant clones of the disease defined as minimal residual disease (MRD). Adjuvant chemotherapy has a limited efficacy in reducing the risk of relapse, and prognostic as well as predictive biomarkers in this context are currently missing.

Methods: We performed a systematic review to evaluate the state of the art about the role of circulating tumor DNA detection through liquid biopsy for the assessment of MRD in resected early-stage NSCLC patients.

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Introduction: Targeting Kirsten Rat Sarcoma (KRAS) has been deemed impossible for long time, but new drugs have recently demonstrated promising results. Evidence on the outcome of KRAS-mutant advanced-NSCLC treated with new standard regimens are still scarce. Thus, we aimed at assessing the incidence and clinical impact of KRAS mutations in a real-life population of advanced-NSCLC, exploring the prognostic significance of distinct alterations.

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Pancreatic ductal adenocarcinoma (PDAC) is a highly devastating disease with rising incidence and poor prognosis. The lack of reliable prognostic biomarkers hampers the individual evaluation of the survival and recurrence potential. Here, we investigate the value of plasma levels of two potential key players in molecular mechanisms underlying PDAC aggressiveness and immune evasion, soluble TGF-beta (sTGF-beta) and sPD-L1, in both metastatic and radically-resected PDAC.

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Article Synopsis
  • BRAF mutations are found in 2-4% of lung adenocarcinoma cases and can affect how patients respond to treatment.
  • This study looked at 44 patients with advanced lung cancer to see how different types of BRAF mutations (V600E and non-V600E) influenced survival and treatment success.
  • Although no big differences in survival were seen, the V600E group had a longer time without cancer worsening, and chemotherapy seemed to help them more than immunotherapy.
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Introduction: ALK tyrosine kinase inhibitors (TKIs) are the standard treatment for advanced ALK-positive NSCLC. Nevertheless, drug resistance inevitably occurs. Here, we report a case of a patient with metastatic ALK-positive lung adenocarcinoma with an impressive resistance to sequential treatment with ALK TKIs mediated by and amplification in a contest of epithelial-to-mesenchymal transition and high progressive chromosomal instability.

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In order to study alternatives at the tissue biopsy to study EGFR status in NSCLC patients, we evaluated three different liquid biopsy platforms (plasma, urine and exhaled breath condensate, EBC). We also reviewed the literature of the cfDNA biological sources other than plasma and compared our results with it about the sensitivity to EGFR mutation determination. Twenty-two EGFR T790M-mutated NSCLC patients in progression to first-line treatment were enrolled and candidate to osimertinib.

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The quest for immunotherapy (IT) biomarkers is an element of highest clinical interest in both solid and hematologic tumors. In non-small-cell lung cancer (NSCLC) patients, besides PD-L1 expression evaluation with its intrinsic limitations, tissue and circulating parameters, likely portraying the tumor and its stromal/immune counterparts, have been proposed as potential predictors of IT responsiveness. STK11 mutations have been globally labeled as markers of IT resistance.

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The emergence of the C797S mutation in EGFR is a frequent mechanism of resistance to osimertinib in the treatment of non-small cell lung cancer (NSCLC). In the present work, we report the design, synthesis and biochemical characterization of UPR1444 (compound 11), a new sulfonyl fluoride derivative which potently and irreversibly inhibits EGFR through the formation of a sulfonamide bond with the catalytic residue Lys745. Enzymatic assays show that compound 11 displayed an inhibitory activity on EGFR comparable to that of osimertinib, and it resulted more selective than the sulfonyl fluoride probe XO44, recently reported to inhibit a significant part of the kinome.

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Background: Resistance to EGFR-TKIs constitutes a major challenge for the management of -mutated NSCLC, and recent evidence suggests that deregulation of specific microRNAs (miRNAs) may influence resistance to targeted agents. In this retrospective study, we explored the role of specific plasmatic miRNAs (miR-21, miR-27a and miR-181a) as a surrogate for predicting EGFR-TKI performance in -mutated NSCLC patients.

Methods: Plasma samples of 39 advanced -mutated NSCLC patients treated with EGFR-TKIs were collected at different points in time and miRNA levels were assessed by RT-PCR.

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