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https://www.readbyqxmd.com/read/27926987/impact-of-everolimus-on-japanese-patients-with-advanced-pancreatic-neuroendocrine-neoplasms
#1
Lingaku Lee, Tetsuhide Ito, Hisato Igarashi, Keijiro Ueda, Takashi Fujiyama, Ken Kawabe, Yoshihiro Ogawa
BACKGROUND: Although everolimus has become a key therapeutic agent in patients with advanced pancreatic neuroendocrine neoplasms (PNEN), its efficacy and safety in clinical practice remains unclear. METHODS: Forty-seven patients with advanced PNEN treated with everolimus were reviewed retrospectively. To evaluate the safety of everolimus as a long-term treatment, the patients were divided into 2 groups according to treatment duration: group A, ≤1 year (n = 21); group B, >1 year (n = 26)...
December 7, 2016: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/27926368/genetic-syndromes-with-pancreatic-manifestations
#2
REVIEW
Meredith E Pittman, Lodewijk A A Brosens, Laura D Wood
Although the pancreas is affected by only a small fraction of known inherited disorders, several of these syndromes predispose patients to pancreatic adenocarcinoma, a cancer that has a consistently dismal prognosis. Still other syndromes are associated with neuroendocrine tumors, benign cysts, or recurrent pancreatitis. Because of the variability of pancreatic manifestations and outcomes, it is important for clinicians to be familiar with several well-described genetic disorders to ensure that patients are followed appropriately...
December 2016: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/27926363/benign-tumors-and-tumorlike-lesions-of-the-pancreas
#3
REVIEW
Olca Basturk, Gokce Askan
The pancreas is a complex organ that may give rise to large number of neoplasms and non-neoplastic lesions. This article focuses on benign neoplasms, such as serous neoplasms, and tumorlike (pseudotumoral) lesions that may be mistaken for neoplasm not only by clinicians and radiologists, but also by pathologists. The family of pancreatic pseudotumors, by a loosely defined conception of that term, includes a variety of lesions including heterotopia, hamartoma, and lipomatous pseudohypertrophy. Autoimmune pancreatitis and paraduodenal ("groove") pancreatitis may also lead to pseudotumor formation...
December 2016: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/27926362/pancreatic-neuroendocrine-tumors
#4
REVIEW
Safia N Salaria, Chanjuan Shi
Pancreatic neuroendocrine neoplasms include well-differentiated pancreatic neuroendocrine tumors (PanNETs) and neuroendocrine carcinomas (NECs) with well-differentiated PanNETs accounting for most cases. Other pancreatic primaries and metastatic carcinomas from other sites can mimic pancreatic neuroendocrine neoplasms. Immunohistochemical studies can be used to aid in the differential diagnosis. However, no specific markers are available to differentiate PanNETs from NETs of other sites. Although NECs are uniformly deadly, PanNETs have variable prognosis...
December 2016: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/27926361/nonductal-pancreatic-cancers
#5
REVIEW
Sun-Young Jun, Seung-Mo Hong
Nonductal pancreatic neoplasms, including solid pseudopapillary neoplasms, acinar cell carcinomas, and pancreatoblastomas, are uncommon. These entities share overlapping gross, microscopic, and immunohistochemical features, such as well-demarcated solid neoplasms, monotonous cellular tumor cells with little intervening stroma, and abnormal beta-catenin expression. Each tumor also has unique clinicopathologic characteristics with diverse clinical behavior. To differentiate nonductal pancreatic neoplasms, identification of histologic findings, such as pseudopapillae, acinar cell features, and squamoid corpuscles, is important...
December 2016: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/27926359/pancreatic-ductal-adenocarcinoma-and-its-variants
#6
REVIEW
Claudio Luchini, Paola Capelli, Aldo Scarpa
Pancreatic cancer represents the seventh leading cause of cancer death in the world, responsible for more than 300,000 deaths per year. The most common tumor type among pancreatic cancers is pancreatic ductal adenocarcinoma, an infiltrating neoplasm with glandular differentiation that is derived from pancreatic ductal tree. Here we present and discuss the most important macroscopic, microscopic, and immunohistochemical characteristics of this tumor, highlighting its key diagnostic features. Furthermore, we present the classic features of the most common variants of pancreatic ductal adenocarcinoma...
December 2016: Surgical Pathology Clinics
https://www.readbyqxmd.com/read/27924459/patient-reported-outcomes-and-quality-of-life-with-sunitinib-versus-placebo-for-pancreatic-neuroendocrine-tumors-results-from-an-international-phase-iii-trial
#7
Aaron Vinik, Andrew Bottomley, Beata Korytowsky, Yung-Jue Bang, Jean-Luc Raoul, Juan W Valle, Peter Metrakos, Dieter Hörsch, Rajiv Mundayat, Arlene Reisman, Zhixiao Wang, Richard C Chao, Eric Raymond
OBJECTIVE: The objective of this analysis was to compare patient-reported outcomes and health-related quality of life (HRQoL) in a pivotal phase III trial of sunitinib versus placebo in patients with progressive, well-differentiated pancreatic neuroendocrine tumors (NCT00428597). PATIENTS AND METHODS: Patients received sunitinib 37.5 mg (n = 86) or placebo (n = 85) on a continuous daily-dosing schedule until disease progression, unacceptable adverse events (AEs), or death...
December 6, 2016: Targeted Oncology
https://www.readbyqxmd.com/read/27923832/ese3-inhibits-pancreatic-cancer-metastasis-by-upregulating-e-cadherin
#8
Tiansuo Zhao, Wenna Jiang, Xiuchao Wang, Hongwei Wang, Chen Zheng, Yang Li, Yan Sun, Chongbiao Huang, Zhi-Bo Han, Shengyu Yang, Zhiliang Jia, Keping Xie, He Ren, Jihui Hao
The ETS family transcription factor ESE3 is a crucial element in differentiation and development programs for many epithelial tissues. Here we report its role as a tumor suppressor in pancreatic cancer. We observed drastically lower ESE3 expression in pancreatic ductal adenocarcinomas (PDAC) compared to adjacent normal pancreatic tissue. Reduced expression of ESE3 in PDAC correlated closely with an increase in lymph node metastasis and vessel invasion and a decrease in relapse-free and overall survival in patients...
December 6, 2016: Cancer Research
https://www.readbyqxmd.com/read/27923829/glucose-metabolism-reprogrammed-by-overexpression-of-ikk%C3%AE%C2%B5-promotes-pancreatic-tumor-growth
#9
Haseeb Zubair, Shafquat Azim, Sanjeev Kumar Srivastava, Aamir Ahmad, Arun Bhardwaj, Mohammad Aslam Khan, Girijesh Kumar Patel, Sumit Arora, James Elliot Carter, Seema Singh, Ajay Pratap Singh
Aberrant expression of the kinase IKKε in pancreatic ductal adenocarcinoma (PDAC) has been associated with poor prognosis. In this study, we define a pathobiologic function for IKKε in reprogramming glucose metabolism and driving progression in PDAC. Silencing IKKε in PDAC cells, which overexpressed it endogenously, was sufficient to reduce malignant cell growth, clonogenic potential, glucose consumption, lactate secretion, and expression of genes involved in glucose metabolism, without impacting the basal oxygen consumption rate...
October 20, 2016: Cancer Research
https://www.readbyqxmd.com/read/27923774/mechanistic-insights-into-selective-killing-of-oxphos-dependent-cancer-cells-by-arctigenin
#10
Karin Brecht, Virginie Riebel, Philippe Couttet, Franziska Paech, Armin Wolf, Salah-Dine Chibout, Francois Pognan, Stephan Krähenbühl, Marianne Uteng
Arctigenin has previously been identified as a potential anti-tumor treatment for advanced pancreatic cancer. However, the mechanism of how arctigenin kills cancer cells is not fully understood. In the present work we studied arctigenin's mechanism of toxicity in the human pancreatic cell line, Panc-1, with special emphasis on the mitochondria. A comparison of Panc-1 cells cultured in glucose versus galactose medium was applied, allowing assessments of effects in glycolytic versus oxidative phosphorylation (OXPHOS)-dependent Panc-1 cells...
December 3, 2016: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/27920700/primary-ewing-sarcoma-primitive-neuroectodermal-tumor-of-the-stomach
#11
Safi Khuri, Hayim Gilshtein, Sa'd Sayidaa, Bishara Bishara, Yoram Kluger
Ewing sarcoma/primitive neuroectodermal tumor (ES/PNET) is a tumor of small round cells arising in skeletal tissues. These tumors rarely arise in the stomach. We present a 31-year-old healthy female patient who was admitted to our surgical ward due to upper gastrointestinal hemorrhage. Upper endoscopy revealed a large ulcerated bleeding mass originating from the lesser curvature. Biopsy revealed tumor cell immunoreactivity positive for CD99, vimentin, and Ki67 (an index of proliferation). These findings were compatible with gastric ES/PNET...
September 2016: Case Reports in Oncology
https://www.readbyqxmd.com/read/27920649/hepatoid-carcinoma-of-the-pancreas-case-report-next-generation-tumor-profiling-and-literature-review
#12
James M Chang, Nitin N Katariya, Dora M Lam-Himlin, Danielle J Haakinson, Ramesh K Ramanathan, Thorvardur R Halfdanarson, Mitesh J Borad, Rahul Pannala, Douglas Faigel, Adyr A Moss, Amit K Mathur
Fewer than 25 cases of hepatoid carcinoma of the pancreas have been reported in the literature. We present a case in a 61-year-old male with a remote history of Hodgkin's lymphoma and gastric neuroendocrine cell hyperplasia. On surveillance endoscopic ultrasound, an 8 × 5 mm cystic lesion was seen in the tail of the pancreas. MRI showed a focal pancreatic duct cut-off with mild ductal dilation. Fine needle aspiration was performed, which was concerning for acinar cell carcinoma. The patient underwent distal pancreatectomy and recovered uneventfully...
September 2016: Case Reports in Gastroenterology
https://www.readbyqxmd.com/read/27920468/immune-checkpoint-therapy-for-pancreatic-cancer
#13
REVIEW
Henrik Johansson, Roland Andersson, Monika Bauden, Sarah Hammes, Stefan Holdenrieder, Daniel Ansari
Novel treatment modalities are necessary for pancreatic cancer. Immunotherapy with immune checkpoint inhibition has shown effect in other solid tumors, and could have a place in pancreatic cancer treatment. Most available clinical studies on immune checkpoint inhibitors for pancreatic cancer are not yet completed and are still recruiting patients. Among the completed trials, there have been findings of a preliminary nature such as delayed disease progression and enhanced overall survival after treatment with immune checkpoint inhibitors in mono- or combination therapy...
November 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27919956/expression-patterns-of-growth-and-survival-genes-with-prognostic-implications-in-advanced-pancreatic-cancer
#14
Dimitrios Pectasides, Vasiliki Kotoula, George Papaxoinis, Zoi Alexopoulou, Christos Dervenis, Epaminontas Samantas, Kleo Papaparaskeva, Elpida Charalambous, Chrysoula Gkakou, Christos Agalianos, Konstantine T Kalogeras, George Pentheroudakis, George Fountzilas
AIM: The aim of this study was to evaluate the mRNA expression pattern of growth- and survival-related genes and assess their prognostic significance in patients with advanced pancreatic cancer. PATIENTS AND METHODS: In total, 98 patients were included in this retrospective translational research study and were evaluated for Kirsten rat sarcoma viral oncogene homolog (KRAS) mutational status, and v-akt murine thymoma viral oncogene homolog 1 (AKT1), AKT serine/threonine kinase 2 (AKT2), AKT serine/threonine kinase 3 (AKT3), cyclin D1 (CCND1), epidermal growth factor receptor (EGFR), mitogen-activated protein kinase 1 (MAPK1), hepatocellular growth factor receptor (MET), avian myelomatosis viral oncogene homolog (MYC), nuclear factor kappa B subunit 1 (NFKb1), phosphatase and tensin homolog (PTEN) and mechanistic target of rapamycin (FRAP1) genes mRNA expression...
December 2016: Anticancer Research
https://www.readbyqxmd.com/read/27919854/jagged1-and-dll4-expressions-in-benign-and-malignant-pancreatic-lesions-and-their-clinicopathological-significance
#15
Sheng-Fu Huang, Zhu-Lin Yang, Dai-Qiang Li, Zhi-Yu Liu, Chun-Wei Wang, Xiong-Ying Miao, Qiong Zou, Yuan Yuan
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) is characterized by a poor prognosis. Despite intensive research, markers for the early diagnosis, prognosis, and targeting therapy of PDAC are not available. This study aimed to investigate the protein expressions of Jagged1 and DLL4 in PDAC tumor, benign pancreatic and normal pancreatic tissues, and analyze the associations of the two proteins with the clinical and pathological characteristics of PDAC. METHODS: A total of 106 PDAC tumor tissues and 35 peritumoral tissues were collected from January 2000 to December 2011 at our hospitals...
December 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/27919845/significance-of-pathological-positive-superior-mesenteric-portal-venous-invasion-in-pancreatic-cancer
#16
Mallika Tewari
BACKGROUND: Pancreaticoduodenectomy with superior mesenteric/portal venous resection for pancreatic ductal adenocarcinoma (PDAC) is frequently performed with no added morbidity or mortality in case of tumor abutment to the superior mesenteric or portal vein so as to obtain a margin negative resection. True histopathological portal vein invasion is found only in a small subset of such patients. The aim of this review aimed to discuss the significance of histopathological venous invasion in PDAC...
December 2016: Hepatobiliary & Pancreatic Diseases International: HBPD INT
https://www.readbyqxmd.com/read/27919787/modulation-of-post-translational-modifications-in-%C3%AE-catenin-and-lrp6-inhibits-wnt-signaling-pathway-in-pancreatic-cancer
#17
Bharti Garg, Bhuwan Giri, Kaustav Majumder, Vikas Dudeja, Sulagna Banerjee, Ashok Saluja
β-catenin/Wnt Signaling pathway is critically regulated in a normal cell by a number of post-translational modifications. In pancreatic cancer however, aberrant activation of this pathway plays a significant role in tumor progression and metastasis. Though a number of studies have focused on understanding Wnt Signaling pathway in pancreatic cancer, there has been no systematic study to evaluate molecules that may be affecting this pathway. In the current study, we used a diterepende triepoxide, triptolide, to inhibit post-translational modifications in Wnt pathway and evaluated how this compound may be affecting the intricate signaling that regulates cell proliferation in pancreatic cancer...
December 2, 2016: Cancer Letters
https://www.readbyqxmd.com/read/27919009/successful-percutaneous-ct-guided-microwave-ablation-of-adrenal-gland-for-ectopic-cushing-syndrome
#18
Rebecca Zener, Andrew Zaleski, Stan H Van Uum, Daryl K Gray, Amol Mujoomdar
Adrenocorticotropic hormone production by pancreatic neuroendocrine tumor (PNET) is rare and results in hyperstimulation of the adrenal gland to produce ectopic Cushing syndrome. Our case showcases the safety and effectiveness of percutaneous CT-guided microwave ablation of the adrenal gland in a 49-year-old female with PNET and hepatic metastases who presented with ectopic Cushing syndrome despite surgical resection of the primary pancreatic tumor and left adrenal gland. Prior to ablation, the right adrenal gland measured 4...
November 29, 2016: Clinical Imaging
https://www.readbyqxmd.com/read/27918310/pancreatic-cancer-surgery-the-new-r-status-counts
#19
Oliver Strobel, Thomas Hank, Ulf Hinz, Frank Bergmann, Lutz Schneider, Christoph Springfeld, Dirk Jäger, Peter Schirmacher, Thilo Hackert, Markus W Büchler
OBJECTIVE: To assess the relevance of resection margin status for survival outcome after resection and adjuvant therapy for pancreatic cancer. BACKGROUND: The definitions for R0 and R1 margin status after resection for pancreatic cancer are controversial. The strict definition of R0 requiring a 1 mm tumor-free margin is not commonly accepted. Reported R0/R1 rates and associated survival are highly heterogeneous. METHODS: A standardized protocol with rigorous assessment of circumferential margins and the R0 definition with a 1 mm free margin were introduced into clinical routine in 2005...
April 11, 2016: Annals of Surgery
https://www.readbyqxmd.com/read/27917949/intravenous-hmscs-ameliorate-acute-pancreatitis-in-mice-via-secretion-of-tumor-necrosis-factor-%C3%AE-stimulated-gene-protein-6
#20
Zhigang He, Jie Hua, Daohai Qian, Jian Gong, Shengping Lin, Chenglei Xu, Ge Wei, Hongbo Meng, Tingsong Yang, Bo Zhou, Zhenshun Song
The administration of mesenchymal stem cells/multipotent mesenchymal stromal cells (MSCs) to enhance tissue repair is currently undergoing clinical trials. Some studies, including our previous work, have also revealed the beneficial effect of MSCs in severe acute pancreatitis (SAP); however, their mechanisms or mode of action remain controversial. In this study, we demonstrated that intravenously (i.v.)-administered human MSCs (hMSCs) remarkably promoted recovery from experimental SAP without significant engraftment of hMSCs in the damaged pancreas...
December 5, 2016: Scientific Reports
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