0000000001010840

AUTHOR

Giuseppe Malleo

showing 5 related works from this author

Prognostic Role of High-Grade Tumor Budding in Pancreatic Ductal Adenocarcinoma: A Systematic Review and Meta-Analysis with a Focus on Epithelial to …

2019

This study aims at clarifying the prognostic role of high-grade tumor budding (TB) in pancreatic ductal adenocarcinoma (PDAC) with the first systematic review and meta-analysis on this topic. Furthermore, we analyzed with a systematic review the relationship between TB and a recently suggested TB-associated mechanism: the epithelial to mesenchymal transition (EMT). Analyzing a total of 613 patients, 251 of them (40.9%) with high grade-TB, we found an increased risk of all-cause mortality (RR, 1.46; 95% CI, 1.13-1.88, p = 0.004; HR, 2.65; 95% CI, 1.79-3.91; p < 0.0001) and of recurrence (RR, 1.61; 95% CI, 1.05-2.47, p = 0.03) for PDAC patients with high-grade TB. Moreover, we found that E…

0301 basic medicineOncologyCancer Researchmedicine.medical_specialtyPancreatic ductal adenocarcinomapancreatic cancerHigh grade tumorReviewEMT; budding; buds; epithelial to mesenchymal transition; pancreatic cancerbuddinglcsh:RC254-28203 medical and health sciences0302 clinical medicineTumor buddingPancreatic cancerInternal medicineMedicineClinical significanceEpithelial–mesenchymal transitionbusiness.industryEMTepithelial to mesenchymal transitionbudslcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseasebud3. Good health030104 developmental biologyIncreased riskOncology030220 oncology & carcinogenesisMeta-analysisbusinessCancers
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Elective surgery system strengthening: development, measurement, and validation of the surgical preparedness index across 1632 hospitals in 119 count…

2022

© 2022 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 licenseBackground: The 2015 Lancet Commission on global surgery identified surgery and anaesthesia as indispensable parts of holistic health-care systems. However, COVID-19 exposed the fragility of planned surgical services around the world, which have also been neglected in pandemic recovery planning. This study aimed to develop and validate a novel index to support local elective surgical system strengthening and address growing backlogs. Methods: First, we performed an international consultation through a four-stage consensus process to develop a multidomain index for hospital-level assess…

MaleHealth system resilience.*COVID-19/epidemiologySocial SciencesSağlık BilimleriGlobal HealthFundamental Medical SciencesClinical Medicine (MED)AnaesthesiasurgeryTIP GENEL & DAHİLİnisu navedene ključne riječiElective backlogMedicine and Health SciencesTOOLKlinik Tıp (MED)610 Medicine & healthMEDICINE GENERAL & INTERNAL11 Medical and Health SciencesKlinik Tıpsurgery; global surgery; health-care systemCovid19NIHR Global Health Unit on Global SurgeryGeneral MedicineHospitalsHospital preparedneTıphealth-care systemElective Surgical ProceduresHEALTH SYSTEMS*PandemicsMedicineFemaleLife Sciences & BiomedicineHumanHälso- och sjukvårdsorganisation hälsopolitik och hälsoekonomiTemel Tıp Bilimleri610 Medicine & healthglobal surgeryGenel TıpCAPACITYCOVIDSurg CollaborativeHospitalMedicine General & InternalGeneral & Internal MedicineHealth SciencesHumansPandemicsScience & TechnologyElective Surgical ProcedurePandemicKirurgiPlanned surgeryCOVID-19Health Care Service and Management Health Policy and Services and Health EconomyCLINICAL MEDICINESettore MED/18Settore MED/18 - Chirurgia Generaleelective surgeryHospital assessmentSystems strengtheningSurgeryHuman medicineMETHODOLOGY[SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
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Genomic characterization of undifferentiated sarcomatoid carcinoma of the pancreas

2022

Undifferentiated sarcomatoid carcinoma (USC) of the pancreas is a rare but especially aggressive variant of pancreatic ductal adenocarcinoma (PDAC), composed of at least 80% of sarcomatoid cells. This study aimed to elucidate its clinicopathological and molecular features. The study cohort included 10 patients with pancreatic USC. Clinicopathological parameters were determined for each patient. The molecular profile was investigated using next-generation sequencing (NGS). Histologically, all tumors were hypercellular neoplasms with spindle-shaped or sarcomatoid cells. All patients showed vascular and perineural invasion. Most patients had a poor prognosis. NGS showed important similarities …

GenomicsPancreatic cancerAdenocarcinomaKRAS; Pancreatic cancer; Pancreatic ductal adenocarcinoma; Sarcomatoid; UndifferentiatedSarcomatoidPathology and Forensic MedicineKRAS Pancreatic cancer Pancreatic ductal adenocarcinoma Sarcomatoid UndifferentiatedPancreatic NeoplasmsProto-Oncogene Proteins p21(ras)Pancreatic ductal adenocarcinomaMutationUndifferentiatedKRASHumansMyeloid Cell Leukemia Sequence 1 ProteinPancreasCarcinoma Pancreatic Ductal
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PD-1, PD-L1, and CD163 in pancreatic undifferentiated carcinoma with osteoclast-like giant cells: A expression patterns and clinical implications

2018

Undifferentiated carcinoma with osteoclast-like giant cells (UCOGC), a variant of pancreatic ductal adenocarcinoma (PDAC), has a striking genetic similarity to PDAC but a significantly improved overall survival. We hypothesize that this difference could be due to the immune response to the tumor, and as such, we investigated the expression of PD-1, PD-L1, and CD163 in a series of UCOGC. To this aim, 27 pancreatic UCOGCs (11 pure and 16 PDAC-associated), 5 extrapancreatic tumors with osteoclast-like giant cells and 10 pancreatic anaplastic carcinomas were immunostained using antibodies against PD-1, PD-L1, and CD163. In pancreatic UCOGCs, PD-L1 was expressed in neoplastic cells of 17 (63%) o…

Male0301 basic medicineIndianaProgrammed Cell Death 1 ReceptorOsteoclast; PDAC; Pancreatic Cancer; Tumor-Associated Macrophages; UCOGCOsteoclastsGiant CellsB7-H1 Antigen0302 clinical medicineTumor-Associated MacrophagesTumours of the digestive tract Radboud Institute for Molecular Life Sciences [Radboudumc 14]LymphocytesAged 80 and overbiologyTumor-associated macrophagesCell DifferentiationMiddle AgedOsteoclast; Pancreatic cancer; PDAC; Tumor-associated macrophages; UCOGC; 2734ImmunohistochemistryEuropePhenotypemedicine.anatomical_structure030220 oncology & carcinogenesisOsteoclastFemaleAntibodyCarcinoma Pancreatic DuctalAdult2734Antigens Differentiation MyelomonocyticReceptors Cell SurfaceUCOGCPathology and Forensic MedicinePancreatic Cancer03 medical and health sciencesImmune systemAll institutes and research themes of the Radboud University Medical CenterAntigens CDOsteoclastPD-L1Pancreatic cancerBiomarkers TumormedicineHumansHistiocyteAgedNeoplasm StagingPDACHistiocytesPancreatic cancermedicine.diseasePancreatic Neoplasms030104 developmental biologyGiant cellCancer researchbiology.proteinCD163
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Pancreatic undifferentiated carcinoma with osteoclast-like giant cells is genetically similar to, but clinically distinct from, conventional ductal a…

2017

Undifferentiated carcinoma of the pancreas with osteoclast-like giant cells (UCOGC) is currently considered a morphologically and clinically distinct variant of pancreatic ductal adenocarcinoma (PDAC). In this study, we report clinical and pathological features of a series of 22 UCOGCs, including the whole exome sequencing of eight UCOGCs. We observed that 60% of the UCOGCs contained a well-defined epithelial component and that patients with pure UCOGC had a significantly better prognosis than did those with an UCOGC with an associated epithelial neoplasm. The genetic alterations in UCOGC are strikingly similar to those known to drive conventional PDAC, including activating mutations in the…

PDAC variants; Undifferentiated carcinoma with osteoclast-like giant cells; whole exome sequencingAged 80 and overMaleendocrine system diseasesCarcinomaUndifferentiated carcinoma with osteoclast-like giant cellsundifferentiated carcinoma with osteoclast-like giant cellOsteoclastsMiddle AgedImmunohistochemistrydigestive system diseasesArticleNeoplasm Proteinswhole exome sequencingPDAC variants; undifferentiated carcinoma with osteoclast-like giant cells; whole exome sequencing; Aged; Aged 80 and over; Carcinoma Pancreatic Ductal; Exome; Female; Humans; Immunohistochemistry; Male; Middle Aged; Mutation; Neoplasm Proteins; Osteoclasts; Pancreatic NeoplasmsPancreatic NeoplasmsPDAC variantsPancreatic DuctalMutation80 and overHumansExomeFemaleAgedCarcinoma Pancreatic Ductal
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