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https://www.readbyqxmd.com/read/29221719/integration-of-different-criteria-for-borderline-resectable-pancreatic-cancer-using-classification-tree-analysis-the-use-of-radiological-tumour-vascular-interface-in-correlation-with-surgical-and-pathological-outcomes
#1
J A Hwang, K M Jang, S H Kim, T W Kang, K D Song, D I Cha, S Ahn
AIM: To integrate various criteria for borderline resectable pancreatic cancer (BRPC) based on radiological parameters using classification tree analysis. MATERIALS AND METHODS: The institutional review board approved this retrospective study and waived the requirement for informed consent. Two hundred and thirty-five tumour-vein interfaces and 67 tumour-artery interfaces in 245 patients with surgically confirmed pancreatic ductal adenocarcinoma who underwent both preoperative computed tomography (CT) and magnetic resonance imaging (MRI) were assessed by two independent readers...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29207802/image-findings-of-solid-pseudopapillary-neoplasms-of-the-pancreas-on-multiphasic-multidetector-ct-scan-a-single-institute-experience-from-southern-india
#2
Santosh Rai, Sonali Prabhu, Sharada Rai, Murali Nirupama, Deepa Sa Adiga, Ashvini Kumar, Shrijeet Chakraborti
Introduction: Solid Pseudopapillary Neoplasms (SPN) are uncommon pancreatic tumours and are slow growing with uncertain malignant potential, showing female preponderance. Postoperative prognosis is good and metastasis is rare. Aim: To summarise the imaging and pathological features of seven cases of SPN in three years period, from January 2013 to January 2016. Materials and Methods: In this retrospective study the imaging features of seven cases on triphasic multidetector Computed Tomogram (CT), a 16-slice scanner, were reviewed along with CT-guided Fine Needle Aspiration Cytology (FNAC) and histopathological examination...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207777/an-aggressive-primary-retroperitoneal-diffuse-large-b-cell-lymphoma-mimicking-a-pancreatic-neoplasm-presenting-as-duodenal-stenosis
#3
Bharadhwaj Ravindhran, Clement Prakash, Sridar Govindharaj, Noor Mohammed Shawnaz Bahnou, B Pavithra
Diffuse Large B-Cell Lymphoma (DLBCL) is the most common histological subtype of Non-Hodgkin's Lymphoma (NHL). Primary retroperitoneal DLBCL is uncommon and has seldom been reported. Extrinsic compression of the duodenum due to lesions originating from the retroperitoneum is also rare. We present a case of a 39-year-old man who presented with inability to tolerate oral intake, abdominal pain, an upper abdominal mass and postprandial bilious vomiting caused by a large DLBCL arising from the retroperitoneum causing extrinsic compression of the duodenum...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29206443/site-specific-64cu-labelling-of-the-serine-protease-active-site-inhibited-factor-seven-azide-fviiai-n3-using-copper-free-click-chemistry
#4
Troels Elmer Jeppesen, Lotte Kellemann Kristensen, Carsten Haagen Nielsen, Lars Christian Petersen, Jesper Bøggild Kristensen, Carsten Behrens, Jacob Madsen, Andreas Kjær
A method for site-specific radiolabelling of the serine protease active site inhibited factor seven (FVIIai) with 64Cu has been applied using a biorthogonal click reaction. FVIIai binds to tissue factor (TF), a trans-membrane protein involved involved in haemostasis, angiogenesis, proliferation, cell migration, and survival of cancer cells. First a single azide moiety was introduced in the active site of this 50 kDa protease. Then a NOTA moiety was introduced via a strain promoted azide-alkyne reaction and the corresponding conjugate was labelled with 64Cu...
December 5, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/29205458/multi-disciplinary-management-of-refractory-insulinomas
#5
Emily Brown, Daniel Watkin, Jonathan Evans, Vincent Yip, Daniel J Cuthbertson
Insulinomas are predominantly benign (~90%), pancreatic neuroendocrine tumours characterised by hyperinsulinaemic hypoglycaemia. They usually present as a small (<2cm), well demarcated, solitary nodule that can arise in any part of the organ. Treatment of sporadic insulinomas is generally aimed at curative surgical resection with special consideration in genetic syndromes. Patients with significant hypoglycaemia can pose a difficult management challenge. In isolated cases where the patient is not medically fit for surgery or with metastatic spread, other treatment options are employed...
December 4, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29198177/clinicopathologic-features-of-solid-pseudopapillary-pancreatic-neoplasms-in-an-eastern-caribbean-population
#6
Shamir O Cawich, Zulema Ledesma, Lian Sampath, Sherisse Sandy
Pancreatic solid pseudopapillary neoplasms (SPNs) are uncommon lesions across the globe. Their incidence is unknown in the Caribbean. This retrospective study sought to document the clinicopathologic features of pancreatic SPNs in an Eastern Caribbean population. We examined data from the hospital records of all patients with SPN in Trinidad and Tobago, finding 11 cases over five years, equating to an incidence of 0.17 cases per 100,000 population per year. The lesions occurred in girls and young women at a mean age of 25 years, with a propensity for those of Afro-Caribbean descent...
January 1, 2017: Tropical Doctor
https://www.readbyqxmd.com/read/29196437/targeting-both-tumour-associated-cxcr2-neutrophils-and-ccr2-macrophages-disrupts-myeloid-recruitment-and-improves-chemotherapeutic-responses-in-pancreatic-ductal-adenocarcinoma
#7
Timothy M Nywening, Brian A Belt, Darren R Cullinan, Roheena Z Panni, Booyeon J Han, Dominic E Sanford, Ryan C Jacobs, Jian Ye, Ankit A Patel, William E Gillanders, Ryan C Fields, David G DeNardo, William G Hawkins, Peter Goedegebuure, David C Linehan
OBJECTIVE: Chemokine pathways are co-opted by pancreatic adenocarcinoma (PDAC) to facilitate myeloid cell recruitment from the bone marrow to establish an immunosuppressive tumour microenvironment (TME). Targeting tumour-associated CXCR2+neutrophils (TAN) or tumour-associated CCR2+ macrophages (TAM) alone improves antitumour immunity in preclinical models. However, a compensatory influx of an alternative myeloid subset may result in a persistent immunosuppressive TME and promote therapeutic resistance...
December 1, 2017: Gut
https://www.readbyqxmd.com/read/29187952/solid-pseudopapillary-neoplasm-of-the-pancreas-in-two-male-patients-gender-does-not-matter
#8
Faten Limaiem, Hafedh Mestiri, Saloua Mejri, Ahlem Lahmar, Sabeh Mzabi
Solid pseudopapillary tumour (SPT) is an unusual pancreatic neoplasm which predominantly affects young women. Less than 10% of patients with SPT in the reported literature were male. In this paper, the authors report two new cases of SPT that occurred in two male patients aged respectively 25 and 20 years old. Abdominal computed tomography scan showed a well-defined heterogeneous mass involving respectively the tail and the body of the pancreas with peripheral calcifications in the first case. The two patients underwent distal splenopancreatectomy...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29187880/the-parp-1-inhibitor-olaparib-suppresses-brca1-protein-levels-increases-apoptosis-and-causes-radiation-hypersensitivity-in-brca1-lymphoblastoid-cells
#9
Emma C Bourton, Pia-Amata Ahorner, Piers N Plowman, Sheba Adam Zahir, Hussein Al-Ali, Christopher N Parris
The use of polyADPribose polymerase inhibitors in cancer treatment provides a unique opportunity to target DNA repair processes in cancer cells while leaving normal tissue intact. The PARP-1 enzyme repairs DNA single strand breaks (SSB). Therefore PARP-1 inhibition in BRCA1 negative cancers results in the formation of cytotoxic DNA double strand breaks (DSB) causing synthetic lethality. The use of PARP1 inhibitors is gaining momentum in the treatment of a variety of tumours with BRCA1 involvement including breast, ovarian, pancreatic and prostate cancer...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29186113/inactivation-of-dna-repair-triggers-neoantigen-generation-and-impairs-tumour-growth
#10
Giovanni Germano, Simona Lamba, Giuseppe Rospo, Ludovic Barault, Alessandro Magrì, Federica Maione, Mariangela Russo, Giovanni Crisafulli, Alice Bartolini, Giulia Lerda, Giulia Siravegna, Benedetta Mussolin, Roberta Frapolli, Monica Montone, Federica Morano, Filippo de Braud, Nabil Amirouchene-Angelozzi, Silvia Marsoni, Maurizio D'Incalci, Armando Orlandi, Enrico Giraudo, Andrea Sartore-Bianchi, Salvatore Siena, Filippo Pietrantonio, Federica Di Nicolantonio, Alberto Bardelli
Molecular alterations in genes involved in DNA mismatch repair (MMR) promote cancer initiation and foster tumour progression. Cancers deficient in MMR frequently show favourable prognosis and indolent progression. The functional basis of the clinical outcome of patients with tumours that are deficient in MMR is not clear. Here we genetically inactivate MutL homologue 1 (MLH1) in colorectal, breast and pancreatic mouse cancer cells. The growth of MMR-deficient cells was comparable to their proficient counterparts in vitro and on transplantation in immunocompromised mice...
November 29, 2017: Nature
https://www.readbyqxmd.com/read/29182741/off-label-use-of-thoracic-aortic-endovascular-stent-grafts-to-simplify-difficult-resections-and-procedures-in-general-thoracic-surgery
#11
Tanja Walgram, Nicolas Attigah, Igor Schwegler, Markus Weber, Omer Dzemali, Christian Berthold, Dirk Wagnetz, Giovanni L Carboni
OBJECTIVES: Tumour infiltration, or gross infectious involvement of the thoracic aortic wall, poses a significant intraoperative risk for fatal bleeding and therefore could compromise adequate resection or efficient surgical management of pleural infection in a considerable amount of cases. We present 3 successful cases of off-label thoracic aortic endografting to safeguard thoracic aortic wall integrity. METHODS: After all patients received thoracic stent grafts through femoral access into the descending aorta, the first patient underwent a resection of a locally advanced squamous cell carcinoma of the left inferior lobe cT4cN0-1cM0 after neoadjuvant chemoradiation, which had infiltrated the descending aortic wall...
November 22, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29175872/notch-pathway-inhibition-targets-chemoresistant-insulinoma-cancer-stem-cells
#12
Ylenia Capodanno, Floryne O Buishand, Lisa Y Pang, Jolle Kirpensteijn, Jan A Mol, David J Argyle
Insulinomas (INS) are the most common neuroendocrine pancreatic tumours in humans and dogs. The long-term prognosis for malignant INS is still poor due to a low success rate of the current treatment modalities, particularly chemotherapy. A better understanding of the molecular processes underlying the development and progression of INS is required to develop novel targeted therapies. Cancer stem cells (CSCs) are thought to be critical for the engraftment and chemoresistance of many tumours, including INS. This study was aimed to characterise and target INS CSCs in order to develop novel targeted therapies...
November 24, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29169836/-classification-of-pancreatic-neuroendocrine-tumours-changes-made-in-the-2017%C3%A2-who-classification-of-tumours-of-endocrine-organs-and-perspectives-for-the-future
#13
Jean-Yves Scoazec, Anne Couvelard
The WHO classification of the tumors of endocrine organs, published in July 2017, has introduced significant changes in the classification of pancreatic neuroendocrine tumors, the previous version of which has appeared in 2010, within the WHO classification of the tumors of the digestive system. The main change is the introduction of a new category of well-differentiated neoplasms, neuroendocrine tumors G3, in addition to the previous categories of neuroendocrine tumors G1 and G2. The differential diagnosis between neuroendocrine tumors G3 (well-differentiated) and neuroendocrine carcinomas (poorly-differentiated) might be difficult; the authors of the WHO classification therefore suggest the use of a number of immunohistochemical markers to facilitate the distinction between the two entities...
November 20, 2017: Annales de Pathologie
https://www.readbyqxmd.com/read/29169620/pancreatic-colloid-carcinoma-in-an-elderly-cat
#14
K Hagiwara, M Michishita, H Yoshimura, K Ochiai, D Azakami, T Ishiwata, K Takahashi
A 21-year-old neutered female domestic shorthaired cat was presented with a history of inappetence, vomiting and haematuria. The cat was humanely destroyed at the owner's request and a necropsy examination was performed. A 0.8 × 0.5 × 0.5 cm mass was located in the left lobe of the pancreas. The mass was gelatinous in nature and the external and cut surfaces were pale yellow in colour. Microscopically, the mass was non-capsulated and comprised an accumulation of extracellular stromal mucin containing suspended neoplastic columnar epithelial cells forming tubular structures...
November 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29163814/multivalent-cationic-pseudopeptide-polyplexes-as-a-tool-for-cancer-therapy
#15
Zoi Diamantopoulou, Maud-Emmanuelle Gilles, Maha Sader, Mélissande Cossutta, Benoit Vallée, Claire Houppe, Damien Habert, Blandine Brissault, Eric Leroy, Federica Maione, Enrico Giraudo, Damien Destouches, Jacques Penelle, José Courty, Ilaria Cascone
In this study, a novel anticancer reagent based on polyplexes nanoparticles was developed. These nanoparticles are obtained by mixing negatively charged polyelectrolytes with the antitumour cationically-charged pseudopeptide N6L. Using two in vivo experimental tumor pancreatic models based upon PANC-1 and mPDAC cells, we found that the antitumour activity of N6L is significantly raised via its incorporation in polyplexed nanoparticles. Study of the mechanism of action using affinity isolation and si-RNA experiments indicated that N6L-polyplexes are internalized through their interaction with nucleolin...
October 27, 2017: Oncotarget
https://www.readbyqxmd.com/read/29161242/cadherin-1-and-cadherin-3-cooperation-determines-the-aggressiveness-of-pancreatic-ductal-adenocarcinoma
#16
Carole Siret, Aurélie Dobric, Anna Martirosyan, Chloé Terciolo, Sébastien Germain, Renaté Bonier, Thassadite Dirami, Nelson Dusetti, Richard Tomasini, Marion Rubis, Stéphane Garcia, Juan Iovanna, Dominique Lombardo, Véronique Rigot, Frédéric André
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is characterised by an extensive tissue invasion and an early formation of metastasis. Alterations in the expression of cadherins have been reported in PDAC. Yet, how these changes contribute to tumour progression is poorly understood. Here, we investigated the relationship between cadherins expression and PDAC development. METHODS: Cadherins expression was assessed by immunostaining in both human and murine tissue specimens...
November 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29161241/determination-of-an-optimal-response-cut-off-able-to-predict-progression-free-survival-in-patients-with-well-differentiated-advanced-pancreatic-neuroendocrine-tumours-treated-with-sunitinib-an-alternative-to-the-current-recist-defined-response
#17
Angela Lamarca, Jorge Barriuso, Matthew Kulke, Ivan Borbath, Heinz-Josef Lenz, Jean Luc Raoul, Neal J Meropol, Catherine Lombard-Bohas, James Posey, Sandrine Faivre, Eric Raymond, Juan W Valle
BACKGROUND: Sunitinib prolongs progression-free survival (PFS) in patients with advanced pancreatic neuroendocrine tumours (pNET). Response Evaluation Criteria in Solid Tumors (RECIST)-defined partial responses (PR; classically defined as ⩾30% size decrease from baseline) are infrequent. METHODS: Individual data of pNET patients from the phase II [NCT00056693] and pivotal phase III [NCT00428597] trials of sunitinib were analysed in this investigator-initiated, post hoc study...
November 21, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29158237/resection-of-pancreatic-cancer-in-europe-and-usa-an-international-large-scale-study-highlighting-large-variations
#18
Lei Huang, Lina Jansen, Yesilda Balavarca, Esther Molina-Montes, Masoud Babaei, Lydia van der Geest, Valery Lemmens, Liesbet Van Eycken, Harlinde De Schutter, Tom B Johannesen, Claus W Fristrup, Michael B Mortensen, Maja Primic-Žakelj, Vesna Zadnik, Nikolaus Becker, Thilo Hackert, Margit Mägi, Tiziana Cassetti, Romano Sassatelli, Robert Grützmann, Susanne Merkel, Ana F Gonçalves, Maria J Bento, Péter Hegyi, Gábor Lakatos, Andrea Szentesi, Michel Moreau, Tony van de Velde, Annegien Broeks, Milena Sant, Pamela Minicozzi, Vincenzo Mazzaferro, Francisco X Real, Alfredo Carrato, Xavier Molero, Marc G Besselink, Núria Malats, Markus W Büchler, Petra Schrotz-King, Hermann Brenner
OBJECTIVE: Resection can potentially cure resectable pancreatic cancer (PaC) and significantly prolong survival in some patients. This large-scale international study aimed to investigate variations in resection for PaC in Europe and USA and determinants for its utilisation. DESIGN: Data from six European population-based cancer registries and the US Surveillance, Epidemiology, and End Results Program database during 2003-2016 were analysed. Age-standardised resection rates for overall and stage I-II PaCs were computed...
November 20, 2017: Gut
https://www.readbyqxmd.com/read/29158145/intratumoural-leukocyte-infiltration-is-a-prognostic-indicator-among-pancreatic-cancer-patients-with-type-2-diabetes
#19
Emelie Karnevi, Agata Sasor, Katarzyna Said Hilmersson, Daniel Ansari, Jonas S Erjefält, Ann H Rosendahl, Roland Andersson
BACKGROUND: The life expectancy of pancreatic cancer patients remains minimal. The disease progression may be influenced by type 2 diabetes (T2D) and inflammatory status, although important gaps persist around their joint effects on disease outcome. The aim of this study was to investigate the clinical significance of the tumour immune microenvironment on pancreatic cancer prognosis in relation to T2D status. METHOD: Tumour-infiltrating macrophages, neutrophils and eosinophils were studied in primary pancreatic tumours and paired lymph node metastases in relation to patient and tumour characteristics, T2D status and overall survival in a retrospective cohort of patients with resectable pancreatic cancer in Sweden...
November 11, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29152076/profiling-tumour-heterogeneity-through-circulating-tumour-dna-in-patients-with-pancreatic-cancer
#20
Patricia Adamo, Caroline M Cowley, Christopher P Neal, Vilas Mistry, Karen Page, Ashley R Dennison, John Isherwood, Robert Hastings, JinLi Luo, David A Moore, Pringle J Howard, Martins L Miguel, Catrin Pritchard, Margaret Manson, Jacqui A Shaw
The majority of pancreatic ductal adenocarcinomas (PDAC) are diagnosed late so that surgery is rarely curative. Earlier detection could significantly increase the likelihood of successful treatment and improve survival. The aim of the study was to provide proof of principle that point mutations in key cancer genes can be identified by sequencing circulating free DNA (cfDNA) and that this could be used to detect early PDACs and potentially, premalignant lesions, to help target early effective treatment. Targeted next generation sequencing (tNGS) analysis of mutation hotspots in 50 cancer genes was conducted in 26 patients with PDAC, 14 patients with chronic pancreatitis (CP) and 12 healthy controls with KRAS status validated by digital droplet PCR...
October 20, 2017: Oncotarget
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