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Pancreatic Neoplasms: HELP
Articles by Antonio Gnoni
Based on 4 articles published since 2010
(Why 4 articles?)

Between 2010 and 2020, Antonio Gnoni wrote the following 4 articles about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Review Angiogenesis in pancreatic ductal adenocarcinoma: A controversial issue. 2016

Longo, Vito / Brunetti, Oronzo / Gnoni, Antonio / Cascinu, Stefano / Gasparini, Giampietro / Lorusso, Vito / Ribatti, Domenico / Silvestris, Nicola. ·Department of Medical Oncology, Hospital of Taranto, Taranto, Italy. · Medical Oncology Unit, Cancer Institute "Giovanni Paolo II", Bari, Italy. · Department of Medical Oncology, Hospital "Vito Fazi" of Lecce, Lecce, Italy. · Medical Oncology Unit, University of Modena, Modena, Italy. · Scientific Direction, Cancer Institute "Giovanni Paolo II", Bari, Italy. · Department of Basic Medical Sciences, Neurosciences and Sensory Organs, University of Bari Medical School, Bari, Italy. · National Cancer Institute "Giovanni Paolo II", Bari, Italy. ·Oncotarget · Pubmed #27462915.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) occurs in the majority of cases with early loco-regional spread and distant metastases at diagnosis, leading to dismal prognosis with a 5-year overall survival rate moderately over than 5%. This malignancy is largely resistant to chemotherapy and radiation, but the reasons of the refractoriness to the therapies is still unknown. Evidence is accumulating to indicate that the PDAC microenvironment and vascularity strongly contribute to the clinical features of this disease. In particular, PDAC is characterized by excessive dense extracellular matrix deposition associated to vasculature collapse and hypoxia with low drug delivery, explaining at least partly the low efficacy of antiangiogenic drugs in this cancer. Strategies aimed to modulate tumor stroma favoring vasculature perfusion and chemotherapeutics delivery are under investigation.

2 Review MicroRNA in pancreatic adenocarcinoma: predictive/prognostic biomarkers or therapeutic targets? 2015

Brunetti, Oronzo / Russo, Antonio / Scarpa, Aldo / Santini, Daniele / Reni, Michele / Bittoni, Alessandro / Azzariti, Amalia / Aprile, Giuseppe / Delcuratolo, Sabina / Signorile, Michele / Gnoni, Antonio / Palermo, Loredana / Lorusso, Vito / Cascinu, Stefano / Silvestris, Nicola. ·Medical Oncology Unit, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, Bari, Italy. · Department of Surgical, Oncological and Oral Sciences, Section of Medical Oncology, University of Palermo, Palermo, Italy. · Department of Pathology and Diagnostics, University of Verona, Verona, Italy. · Department of Medical Oncology, University Campus Bio-Medico, Rome, Italy. · Department of Medical Oncology, San Raffaele Scientific Institute, Milan, Italy. · AOU Ospedali Riuniti, Polytechnic University of the Marche Region, Ancona, Italy. · Clinical and Preclinical Pharmacology Laboratory, National Cancer Research Centre, Istituto Tumori Giovanni Paolo II, Bari, Italy. · Department of Medical Oncology, University Hospital of Udine, Udine, Italy. · Department of Medical Oncology, Hospital of Taranto, Taranto, Italy. ·Oncotarget · Pubmed #26259238.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) is a tumor with a poor prognosis, short overall survival and few chemotherapeutic choices. MicroRNAs (miRNAs) are non-coding, single-stranded RNAs of around 22 nucleotides involved in the pathogenic mechanisms of carcinogenesis and metastasis. They have been studied in many tumors in order to identify potential diagnostic, prognostic or therapeutic targets. In the current literature, many studies have analyzed the role of miRNAs in PDAC. In fact, the absence of appropriate biomarkers, the difficultly of early detection of this tumor, and the lack of effective chemotherapy in patients with unresectable disease have focused attention on miRNAs as new, interesting advance in this malignancy. In this review we analyzed the role of miRNAs in PDAC in order to understand the mechanisms of action and the difference between the onco-miRNA and the tumor suppressor miRNA. We also reviewed all the data related to the use of these molecules as predictive as well as prognostic biomarkers in the course of the disease. Finally, the possible therapeutic use of miRNAs or anti-miRNAs in PDAC is also discussed. In conclusion, although there is still no clinical application for these molecules in PDAC, it is our opinion that the preclinical evidence of the role of specific miRNAs in carcinogenesis, the possibility of using miRNAs as diagnostic or prognostic biomarkers, and their potential therapeutic role, warrant future studies in PDAC.

3 Review Target therapies in pancreatic carcinoma. 2014

Silvestris, Nicola / Gnoni, Antonio / Brunetti, Anna Elisabetta / Vincenti, Leonardo / Santini, Daniele / Tonini, Giuseppe / Merchionne, Francesca / Maiello, Evaristo / Lorusso, Vito / Nardulli, Patrizia / Azzariti, Amalia / Reni, Michele. ·Medical Oncology Unit, National Cancer Research Centre - Istituto Tumori Giovanni Paolo II, Viale Orazio Flacco, 65, 70124 Bari, Italy. n.silvestris@oncologico.bari.it. ·Curr Med Chem · Pubmed #23992319.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) occurs in the majority of cases with early locoregional spread and distant metastases at diagnosis, leading to dismal prognosis and limited treatment options. Traditional cytotoxic chemotherapy provides only modest benefit to patients with PDAC. Identification of different molecular pathways, overexpressed in pancreatic cancer cells, has provided the opportunity to develop targeted therapies (monoclonal antibodies and small-molecule inhibitors) and peculiar new class of taxanes with a crucial therapeutic role in this cancer setting. A phase III trial has shown that erlotinib in combination with gemcitabine was clinically irrelevant and skin toxicity can be a positive prognostic factor. Moreover, the combination of cetuximab or erlotinib with radiotherapy in advanced pancreatic cancer has shown to be synergistic and a reversal of radio-resistance has been suggested by inhibition of VEGF/EGFR pathway. To overcome EGFR-inhibition therapy resistance several alternative pathways targets are under investigation (IGF- 1R, MMPs, Hedgehog proteins, m-TOR, MEK, COX-2) and provide the rationale for clinical use in phase II/III studies. Also nab-paclitaxel, a new taxanes class, uses high pancreatic albumin-binding protein SPARC levels to act in cancer cells with a less toxic and more effective dose with respect to classic taxanes. Understanding of molecular pathogenesis of pancreatic adenocarcinoma continues to expand. However, many promising data in preclinic and phase I/II trials did not yield promise in phase III trials, suggesting that identification of predictive biomarkers for these new agents is mandatory. The knowledge of biologic and molecular aspects of pancreatic cancer can be the basis for future therapeutic developments.

4 Review Carcinogenesis of pancreatic adenocarcinoma: precursor lesions. 2013

Gnoni, Antonio / Licchetta, Antonella / Scarpa, Aldo / Azzariti, Amalia / Brunetti, Anna Elisabetta / Simone, Gianni / Nardulli, Patrizia / Santini, Daniele / Aieta, Michele / Delcuratolo, Sabina / Silvestris, Nicola. ·Medical Oncology Unit, Hospital Vito Fazzi, Lecce 73100, Italy. n.silvestris@oncologico.bari.it. ·Int J Mol Sci · Pubmed #24084722.

ABSTRACT: Pancreatic adenocarcinoma displays a variety of molecular changes that evolve exponentially with time and lead cancer cells not only to survive, but also to invade the surrounding tissues and metastasise to distant sites. These changes include: genetic alterations in oncogenes and cancer suppressor genes; changes in the cell cycle and pathways leading to apoptosis; and also changes in epithelial to mesenchymal transition. The most common alterations involve the epidermal growth factor receptor (EGFR) gene, the HER2 gene, and the K-ras gene. In particular, the loss of function of tumor-suppressor genes has been documented in this tumor, especially in CDKN2a, p53, DPC4 and BRCA2 genes. However, other molecular events involved in pancreatic adenocarcinoma pathogenesis contribute to its development and maintenance, specifically epigenetic events. In fact, key tumor suppressors that are well established to play a role in pancreatic adenocarcinoma may be altered through hypermethylation, and oncogenes can be upregulated secondary to permissive histone modifications. Indeed, factors involved in tumor invasiveness can be aberrantly expressed through dysregulated microRNAs. This review summarizes current knowledge of pancreatic carcinogenesis from its initiation within a normal cell until the time that it has disseminated to distant organs. In this scenario, highlighting these molecular alterations could provide new clinical tools for early diagnosis and new effective therapies for this malignancy.