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Pancreatic Neoplasms: HELP
Articles by Luca Emanuele Pollina
Based on 6 articles published since 2010
(Why 6 articles?)

Between 2010 and 2020, L. Pollina wrote the following 6 articles about Pancreatic Neoplasms.
+ Citations + Abstracts
1 Review Robotic pancreatoduodenectomy with vascular resection. 2016

Kauffmann, Emanuele F / Napoli, Niccolò / Menonna, Francesca / Vistoli, Fabio / Amorese, Gabriella / Campani, Daniela / Pollina, Luca Emanuele / Funel, Niccola / Cappelli, Carla / Caramella, Davide / Boggi, Ugo. ·Division of General and Transplant Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, Via Paradisa 2, 56124, Pisa, Italy. · Division of Anesthesia and Intensive Care, University of Pisa and Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. · Division of Pathology, University of Pisa and Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. · Division of Radiology, University of Pisa and Azienda Ospedaliero Universitaria Pisana, Pisa, Italy. · Division of General and Transplant Surgery, University of Pisa and Azienda Ospedaliero Universitaria Pisana, Via Paradisa 2, 56124, Pisa, Italy. u.boggi@med.unipi.it. ·Langenbecks Arch Surg · Pubmed #27553112.

ABSTRACT: PURPOSE: This study aims to define the current status of robotic pancreatoduodenectomy (RPD) with resection and reconstruction of the superior mesenteric/portal vein (RPD-SMV/PV). METHODS: Our experience on RPD, including RPD-SMV/PV, is presented along with a description of the surgical technique and a systematic review of the literature on RPD-SMV/PV. RESULTS: We have performed 116 RPD and 14 RPD-SMV/PV. Seven additional cases of RPD-SMV/PV were identified in the literature. In our experience, RPD and RPD-SMV/PV were similar in all baseline variables, but lower mean body mass and higher prevalence of pancreatic cancer in RPD-SMV/PV. Regarding the type of vein resection, there were one type 2 (7.1 %), five type 3 (35.7 %) and eight type 4 (57.2 %) resections. As compared to RPD, RPD-SMV/PV required longer operative time, had higher median estimated blood loss, and blood transfusions were required more frequently. Incidence and severity of post-operative complications were not increased in RPD-SMV/PV, but post-pancreatectomy hemorrhage occurred more frequently after this procedure. In pancreatic cancer, RPD-SMV/PV was associated with a higher mean number of examined lymph nodes (60.0 ± 13.9 vs 44.6 ± 11.0; p = 0.02) and with the same rate of microscopic margin positivity (25.0 % vs 26.1 %). Mean length or resected vein was 23.1 ± 8.08 mm. Actual tumour infiltration was discovered in ten patients (71.4 %), reaching the adventitia in four patients (40.0 %), the media in two patients (20.0 %), and the intima in four patients (40.0 %). Literature review identified seven additional cases, all reported to have successful outcome. CONCLUSIONS: RPD-SMV/PV is feasible in carefully selected patients. The generalization of these results remains to be demonstrated.

2 Review Critical role of laser microdissection for genetic, epigenetic and proteomic analyses in pancreatic cancer. 2011

Funel, Niccola / Giovannetti, Elisa / Pollina, Luca E / del Chiaro, Marco / Mosca, Franco / Boggi, Ugo / Campani, Daniela. ·Department of Surgery, Unit of Experimental Surgical Pathology, University Hospital of Pisa, Via Paradisa 2, 56124 Pisa, Italy. niccolafunel@blu.it ·Expert Rev Mol Diagn · Pubmed #21902531.

ABSTRACT: Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease, and molecular studies to unravel novel biomarkers and therapeutic targets are warranted. However, PDAC is characterized by different precursor lesions, as well as by an intense desmoplastic reaction, with islet of neoplastic cells often representing a minor population. Moreover, normal ductal cells, which are considered to be the normal counterpart of pancreatic adenocarcinoma cells, comprise approximately 5% of the total population of cells making up this organ. For all these reasons, molecular techniques to identify critical mutations, as well as the pattern of altered mRNA/microRNA/protein expression should be performed on selected pancreatic cell subpopulations. Therefore, the use of the newest laser microdissection techniques is critical for the analysis of PDAC biological characteristics. This article highlights the most recent and clinically relevant aspects of genetic, epigenetic and proteomic analyses of PDAC from the perspective of the application of laser microdissection.

3 Article Adjuvant chemotherapy seems beneficial for invasive intraductal papillary mucinous neoplasms. 2013

Caponi, S / Vasile, E / Funel, N / De Lio, N / Campani, D / Ginocchi, L / Lucchesi, M / Caparello, C / Lencioni, M / Cappelli, C / Costa, F / Pollina, L / Ricci, S / Mosca, F / Falcone, A / Boggi, U. ·Department of Oncology, Transplants, and New Technologies, U.O. Oncologia 2 Universitaria, Azienda Ospedaliero-Universitaria Pisana, Polo Oncologico Area Vasta Nord-Ovest, Istituto Toscano Tumori, Via Roma 67, 56126 Pisa, Italy. ·Eur J Surg Oncol · Pubmed #23290583.

ABSTRACT: AIMS: The incidence of intraductal papillary mucinous neoplasm (IPMN) is rising and these neoplasms now represent up to 25% of resected pancreatic neoplasms. The optimal postoperative management of resected invasive IPMN is still debated in the absence of large prospective clinical trials and of validated prognostic factors in this setting. The objective of our study was to identify potential prognostic factors and to investigate the role of adjuvant therapies for patients radically resected for invasive IPMN. METHODS: We retrospectively reviewed clinical and pathological data regarding a large series of patients with invasive IPMN who underwent surgical resection in the last six years at University Hospital of Pisa. RESULTS: Sixty-four patients were considered for the analysis, thirty-three of whom received adjuvant chemotherapy with gemcitabine. In our series node involvement and high tumoral grade emerged as the major pathologic prognostic factors. Patients treated with adjuvant chemotherapy with gemcitabine experienced a longer disease-free survival than those who received surgery alone. CONCLUSIONS: Gemcitabine-based chemotherapy seems beneficial as adjuvant treatment for patients with resected invasive IPMN.

4 Article High-throughput microRNA (miRNAs) arrays unravel the prognostic role of MiR-211 in pancreatic cancer. 2012

Giovannetti, Elisa / van der Velde, Arjan / Funel, Niccola / Vasile, Enrico / Perrone, Vittorio / Leon, Leticia G / De Lio, Nelide / Avan, Amir / Caponi, Sara / Pollina, Luca E / Gallá, Valentina / Sudo, Hiroko / Falcone, Alfredo / Campani, Daniela / Boggi, Ugo / Peters, Godefridus J. ·Department of Medical Oncology, VU University Medical Center, Amsterdam, The Netherlands. elisa.giovannetti@gmail.com ·PLoS One · Pubmed #23155457.

ABSTRACT: BACKGROUND: Only a subset of radically resected pancreatic ductal adenocarcinoma (PDAC) patients benefit from chemotherapy, and identification of prognostic factors is warranted. Recently miRNAs emerged as diagnostic biomarkers and innovative therapeutic targets, while high-throughput arrays are opening new opportunities to evaluate whether they can predict clinical outcome. The present study evaluated whether comprehensive miRNA expression profiling correlated with overall survival (OS) in resected PDAC patients. METHODOLOGY/PRINCIPAL FINDINGS: High-resolution miRNA profiles were obtained with the Toray's 3D-Gene™-miRNA-chip, detecting more than 1200 human miRNAs. RNA was successfully isolated from paraffin-embedded primary tumors of 19 out of 26 stage-pT3N1 homogeneously treated patients (adjuvant gemcitabine 1000 mg/m(2)/day, days-1/8/15, every 28 days), carefully selected according to their outcome (OS<12 (N = 13) vs. OS>30 months (N = 6), i.e. short/long-OS). Highly stringent statistics included t-test, distance matrix with Spearman-ranked correlation, and iterative approaches. Unsupervised hierarchical analysis revealed that PDACs clustered according to their short/long-OS classification, while the feature selection algorithm RELIEF identified the top 4 discriminating miRNAs between the two groups. These miRNAs target more than 1500 transcripts, including 169 targeted by two or more. MiR-211 emerged as the best discriminating miRNA, with significantly higher expression in long- vs. short-OS patients. The expression of this miRNA was subsequently assessed by quantitative-PCR in an independent cohort of laser-microdissected PDACs from 60 resected patients treated with the same gemcitabine regimen. Patients with low miR-211 expression according to median value had a significantly shorter median OS (14.8, 95%CI = 13.1-16.5, vs. 25.7 months, 95%CI = 16.2-35.1, log-rank-P = 0.004). Multivariate analysis demonstrated that low miR-211 expression was an independent factor of poor prognosis (hazard ratio 2.3, P = 0.03) after adjusting for all the factors influencing outcome. CONCLUSIONS/SIGNIFICANCE: Through comprehensive microarray analysis and PCR validation we identified miR-211 as a prognostic factor in resected PDAC. These results prompt further prospective studies and research on the biological role of miR-211 in PDAC.

5 Article Loss of heterozygosity status of D9S105 marker is associated with downregulation of Krüppel-like factor 4 expression in pancreatic ductal adenocarcinoma and pancreatic intraepithelial lesions. 2011

Funel, Niccola / Morelli, Mariangela / Giovannetti, Elisa / Del Chiaro, Marco / Pollina, Luca Emanuele / Mosca, Franco / Boggi, Ugo / Cavazzana, Andrea / Campani, Daniela. ·Division of General and Transplantation Surgery, University of Pisa, Pisa, Italy. ·Pancreatology · Pubmed #21412023.

ABSTRACT: The transcription factor Krüppel-like factor 4 (KLF4) may act both as an oncogene and a tumor suppressor in a tissue-dependent manner, and further studies on its role in pancreatic ductal adenocarcinoma (PDAC) progression and clinical outcome are warranted. Therefore, we investigated the loss of heterozygosity (LOH) in the 9q22.3-32 region and loss of KFL4 gene expression in epithelial cells from 35 PDAC, 6 pancreatic intraductal neoplasias (PanINs) and 6 normal ducts, isolated by laser microdissection, as well as their correlation with overall survival (OS) in patients treated with gemcitabine in the adjuvant setting. LOH was evaluated with 4 microsatellite markers and in situ hybridization, while KLF4 expression was studied by reverse transcription-PCR and immunohistochemistry. LOH in at least 1 locus was observed in 25 of 35 PDAC cases and in 5 of 6 PanINs, respectively. In particular, the loss of the D9S105 marker was present in 46.9% of PDAC and 83.3% of PanINs, becoming the most deleted marker, while no LOH in D9S105 was observed in normal Wirsung pancreatic duct. Lack of KLF4 mRNA expression was significantly associated with: (1) genomic deletion flanking KLF4 in PDAC and in PanINs (with LOH of D9S105), (2) low-grade PDAC-associated PanIN, (3) lack of KLF4 protein expression, and (4) shorter OS. These results strongly suggest a relationship between D9S105 deletion and downregulation of KLF4 gene expression as an early event in PDAC progression, as well as a possible role of KLF4 as a prognostic biomarker in gemcitabine-treated patients. and IAP.

6 Article MicroRNA-21 in pancreatic cancer: correlation with clinical outcome and pharmacologic aspects underlying its role in the modulation of gemcitabine activity. 2010

Giovannetti, Elisa / Funel, Niccola / Peters, Godefridus J / Del Chiaro, Marco / Erozenci, Leyla A / Vasile, Enrico / Leon, Leticia G / Pollina, Luca E / Groen, Annemieke / Falcone, Alfredo / Danesi, Romano / Campani, Daniela / Verheul, Henk M / Boggi, Ugo. ·VU University Medical Center, Amsterdam, the Netherlands. ·Cancer Res · Pubmed #20460539.

ABSTRACT: MicroRNA-21 (miR-21) was reported to be overexpressed and contributes to invasion and gemcitabine resistance in pancreatic ductal adenocarcinoma (PDAC). The aim of this study was to evaluate whether miR-21 expression was associated with the overall survival (OS) of PDAC patients treated with gemcitabine and to provide mechanistic insights for new therapeutic targets. miR-21 expression was evaluated in cells (including 7 PDAC cell lines, 7 primary cultures, fibroblasts, and a normal pancreatic ductal cell line) and tissues (neoplastic specimens from 81 PDAC patients and normal ductal samples) isolated by laser microdissection. The role of miR-21 on the pharmacologic effects of gemcitabine was studied with a specific miR-21 precursor (pre-miR-21). Patients with high miR-21 expression had a significantly shorter OS both in the metastatic and in the adjuvant setting. Multivariate analysis confirmed the prognostic significance of miR-21. miR-21 expression in primary cultures correlated with expression in their respective tissues and with gemcitabine resistance. Pre-miR-21 transfection significantly decreased antiproliferative effects and apoptosis induction by gemcitabine, whereas matrix metalloproteinase (MMP)-2/MMP-9 and vascular endothelial growth factor expression were upregulated. Addition of inhibitors of phosphoinositide 3-kinase and mammalian target of rapamycin resulted in decrease of phospho-Akt and prevented pre-miR-21-induced resistance to the proapoptotic effects of gemcitabine. miR-21 expression correlated with outcome in PDAC patients treated with gemcitabine. Modulation of apoptosis, Akt phosphorylation, and expression of genes involved in invasive behavior may contribute to the role of miR-21 in gemcitabine chemoresistance and to the rational development of new targeted combinations.