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Jitka Rybová, Ladislav Kuchar, Helena Hulková, Befekadu Asfaw, Robert Dobrovolný, Jakub Sikora, Vladimír Havlícek, Ludovít Škultéty, Jana Ledvinová
Blood group B glycosphingolipids (B-GSLs) are substrates of the lysosomal alpha-galactosidase A (AGAL). Similar to its major substrate - globotriaosylceramide (Gb3Cer) - B-GSLs are not degraded and accumulate in the cells of patients affected by an inherited defect of AGAL activity (Fabry disease - FD).The pancreas is a secretory organ known to have high biosynthesis of blood group GSLs. Herein, we provide a comprehensive overview of the biochemical and structural abnormalities in pancreatic tissue from two male FD patients with blood group B...
March 14, 2018: Glycobiology
K Blouhos, K A Boulas, A Paraskeva, I Kariotis, N Barettas, A Hatzigeorgiadis
INTRODUCTION: Secondary pancreatic tumors are uncommon and account for 2-5% of pancreatic cancer. Tumors characterized most commonly with pancreatic involvement are lymphoma, renal cell and lung carcinomas. PRESENTATION OF CASE: A 76-year-old female patient with obstructive jaundice as the primary symptom and inguinal lymphadenopathy is presented. Imaging revealed a bulky solitary solid pancreatic head mass along with paraaortic and mesenteric lymphadenopathy. The absence of a previous history of malignancy and the presence of a dominant pancreatic mass along with distal lymphadenopathy confined differential diagnosis to advanced secondary pancreatic lymphoma, which is the most common secondary pancreatic tumor, and locally advanced/metastatic pancreatic adenocarcinoma...
March 7, 2018: International Journal of Surgery Case Reports
Claudia Bello, Jianfei Bai, Bartosz K Zambron, Pilar Elías-Rodríguez, Consuelo Gajate, Inmaculada Robina, Irene Caffa, Michele Cea, Fabrizio Montecucco, Alessio Nencioni, Aimable Nahimana, Dominique Aubry, Caroline Breton, Michel A Duchosal, Faustino Mollinedo, Pierre Vogel
We have synthesized a wide array of structurally related amphiphilic compounds, containing a functionalized pyrrolidine polar group coupled to different ether-linked hydrocarbon chains, to generate novel structures with antitumor activity. These newly synthesized amphiphilic pyrrolidine-derived compounds were classified in three different sub-libraries regarding the number of hydroxyl groups substituting the pyrrolidine moiety at C3 and C4. Pyrrolidine compounds with one or none hydroxyl groups showed a potent cell killing activity against pancreatic cancer cells, but they lacked selectivity for tumor cells...
March 2, 2018: European Journal of Medicinal Chemistry
Karen Kinsley, Wendy Pritchett
Recent approaches in treating pancreatic adenocarcinoma, an aggressive disease with limited survival, include the use of liposomal irinotecan as an option when first-line therapy has failed. Liposomal irinotecan has been approved in combination with 5-fluorouracil and leucovorin for patients with metastatic pancreatic cancer. Liposomal irinotecan is a newer therapy requiring oncology nurses to obtain knowledge and skills for proper administrating, monitoring of hypersensitivity reactions during infusion, managing side effects, and providing patient education...
April 1, 2018: Clinical Journal of Oncology Nursing
Nelson S Yee
Progress has been made in the treatment of gastrointestinal cancers through advances in systemic therapies, surgical interventions, and radiation therapy. At the Multi-Disciplinary Patient Care in Gastrointestinal Oncology conference, the faculty members of the Penn State Health Milton S. Hershey Medical Center presented a variety of topics that focused on this sub-specialty. This conference paper highlights the new development in systemic treatment of various malignant diseases in the digestive system. Results of the recent clinical trials that investigated the clinical efficacy of pegylated hyaluronidase, napabucasin, and L-asparaginase in pancreatic carcinoma are presented...
March 16, 2018: Biomedicines
Sweet Ping Ng, Joseph M Herman
Pancreatic cancer is a devastating disease with poor survival outcomes. Recent studies have shown that the addition of radiotherapy to chemotherapy in the setting of locally advanced pancreatic cancer did not improve overall survival outcome. These studies commonly utilize conventional radiotherapy treatment fractionation and technique (typically 3-D conformal radiotherapy or intensity modulated radiotherapy). Although no clear benefit in overall survival was demonstrated in those studies, those who received radiotherapy did have a clear benefit in terms of local control...
March 16, 2018: Cancers
Nishant Patel, Jeffrey Forris Beecham Chick, Joseph J Gemmete, Jordan C Castle, Narasimham Dasika, Wael E Saad, Ravi N Srinivasa
OBJECTIVE: The objective of our study was to report the technique, complications, and clinical outcomes of interventional radiology-operated cholecystoscopy with stone removal for the management of symptomatic cholelithiasis. MATERIALS AND METHODS: Ten (77%) men and three (23%) women (mean age, 65 years) with symptomatic cholelithiasis underwent cholecystostomy followed by interventional radiology-operated cholecystoscopy with stone removal. Major comorbidities precluding cholecystectomy included prior cardiac, pulmonary, or abdominal surgery; cirrhosis; sepsis with hyponatremia; seizure disorder; developmental delay; and cholecystoduodenal fistula...
March 16, 2018: AJR. American Journal of Roentgenology
Katarzyna Skrzypek, Yazmin Brito Barrera, Thomas Groth, Dimitrios Stamatialis
INTRODUCTION: Encapsulation of pancreatic islets or beta cells is a promising strategy for treatment of type 1 diabetes by providing an immune isolated environment and allowing for transplantation in a different location than the liver. However, islets used for encapsulation often show lower functionality due to the damaging of islet endothelial cells during the isolation procedure. Factors produced by endothelial cells have great impact on beta cell insulin secretion. Therefore, mutual signaling between endothelial cells and beta cells should be considered for the development of encapsulation systems to achieve high insulin secretion and maintain beta cell viability...
March 2018: International Journal of Artificial Organs
Laura Fangmann, Steffen Teller, Pavel Stupakov, Helmut Friess, Güralp O Ceyhan, Ihsan Ekin Demir
In pancreatic cancer, neural invasion is one of the most common paths of cancer dissemination. Classically, cancer cells actively invade nerves and cause local recurrence and pain. Three-dimensional (3D) neural migration assay has become a standard tool for scientists to study neural invasion by confronting the involved cell types. This protocol introduces Schwann cells, i.e., the most prevalent cell type in peripheral nerves, in a novel heterotypic, glia-cancer-neuron, 3D migration assay for assessing their relevance in the early pathogenesis of neural invasion...
2018: Methods in Molecular Biology
Mаhmoud Youns, Abeer ElKhoely, Rehab Kamel
Pancreatic cancer, the fourth most common cause of cancer-related deaths, is one of the most aggressive and devastating human malignancies with increasing incidence worldwide. To date, surgical resection is the only potentially curative therapy available for pancreatic cancer patients. Early diagnosis of pancreatic tumors is difficult, and hence, nearly 80% of patients cannot receive surgical resection. Natural products have always been a vital source for novel compounds for cancer treatment. The naturally occurring prenylated xanthone, gambogic acid, has been previously shown to exert potent anticancer, anti-inflammatory, apoptotic, antiangiogenic, and antioxidant activities...
March 15, 2018: Naunyn-Schmiedeberg's Archives of Pharmacology
Reiko Yamada, Takashi Sakuno, Hiroyuki Inoue, Hiroshi Miura, Toshifumi Takeuchi, Yasunori Shiono, Hiroaki Okuse, Misaki Nakamura, Masaki Katsurahara, Yasuhiko Hamada, Kyosuke Tanaka, Noriyuki Horiki, Yoshiyuki Takei
A 49-year-old man was admitted to our hospital with pancreatitis. He was diagnosed with systemic lupus erythematosus at 34 years of age and was being treated with oral tacrolimus (3 mg/day) and predonine (10 mg/day) for the past 15 months. The computed tomography (CT) scan showed the mass lesion had invaded the pancreatic head via thickening of the duodenal wall. Upper gastrointestinal endoscopy showed the all-round ulcerative lesion from the superior duodenal angle to the descending portion. Histological examination confirmed the diagnosis of diffuse large B cell lymphoma (DLBCL)...
March 15, 2018: Clinical Journal of Gastroenterology
Ryota Matsuki, Masanori Sugiyama, Shinya Yoshiike, Junji Shibahara, Masaharu Kogure, Masaaki Yokoyama, Yutaka Suzuki, Nobutsugu Abe, Tadahiko Masaki, Toshiyuki Mori
A 72-year-old woman with advanced ascending colon cancer and an intraductal papillary mucinous neoplasm (IPMN) of the pancreatic head was treated by right hemicolectomy (RHC) and pylorus-preserving pancreaticoduodenectomy (PpPD). Adjuvant chemotherapy was not administered. Multimodal examinations at 5 months after surgery detected a solitary metastatic liver tumor derived from cancer of the ascending colon. Liver resection proceeded at 7 months after the first surgery. A pathological study of a surgical specimen of the liver identified a necrotic nodule that did not contain viable tumor cells...
March 15, 2018: Clinical Journal of Gastroenterology
Cyndya A Shibao, Jorge E Celedonio, Robyn Tamboli, Reem Sidani, Latisha Love-Gregory, Terri Pietka, Yanhua Xiong, Yan Wei, Naji N Abumrad, Nada A Abumrad, Charles Robb Flynn
Context: Abnormal fatty acid (FA) metabolism contributes to diabetes and cardiovascular disease. The FA receptor CD36 has been linked to risk of metabolic syndrome. In rodents CD36 regulates various aspects of fat metabolism but whether it has similar actions in humans is unknown. We examined impact of a coding single-nucleotide polymorphism in CD36 on post-prandial hormone and bile acid (BA) responses. Objective: To examine if the minor allele (G) of coding CD36 variant rs3211938 (G/T) which reduces CD36 level by approximately 50% influences hormonal responses to a high-fat meal (HFM)...
March 12, 2018: Journal of Clinical Endocrinology and Metabolism
Lianbin Xu, Xueyan Lin, Robin R White, Mark D Hanigan, Zhiyong Hu, Qiuling Hou, Yun Wang, Zhonghua Wang
Background: Circulating amino acid (AA) and nitric oxide (NO) concentrations and hepatic gluconeogenesis are affected by previous protein intake. However, information about their relations and islet hormone responses is limited. Objective: This study investigated the associations between islet hormone concentrations with circulating AA and NO concentrations as well as with hepatic gluconeogenesis in lactating rats. Methods: At delivery, 18 Wistar rats aged 14 wk were assigned either to low-protein (LP; 9% protein), standard-protein (SP; 21% protein), or high-protein (HP; 35% protein) diets for 15 d in groups of 6 pups/dam...
March 1, 2018: Journal of Nutrition
Xiaoqing Wang, Yang Bai, Mangmang Cui, Qingxiang Zhang, Wei Zhang, Feng Fang, Tianqiang Song
Objective: This study proposed a modified Blumgart anastomosis (m-BA) that uses a firm ligation of the main pancreatic duct with a supporting tube to replace the pancreatic duct-to-jejunum mucosa anastomosis, with the aim of simplifying the complicated steps of the conventional BA (c-BA). Thus, we observe if a difference in the risk of postoperative pancreatic fistula (POPF) exists between the two methods. Methods: The m-BA anastomosis method has been used since 2010...
February 2018: Cancer Biology & Medicine
Chungen Lan, Xin Li, Xiuchao Wang, Jihui Hao, He Ren
Objective: Cystic lesions of the pancreas have been increasingly recognized. Some lesions exhibit benign behavior, while others have unequivocal malignant potential. Thus, accurate identification of malignancy in patients diagnosed with pancreatic cystic neoplasms (PCNs) remains a major challenge. The aim of this study was to define a combined criterion to better predict malignant lesions in patients with PCNs. Methods: We retrospectively analyzed 165 patients who underwent resection of PCNs from October 2011 to May 2017...
February 2018: Cancer Biology & Medicine
Muhammad Khairi Ahmad, Nur Ainina Abdollah, Nurul Husna Shafie, Narazah Mohd Yusof, Siti Razila Abdul Razak
Mitogen-activated protein kinases (MAPKs) are the main regulators of cellular proliferation, growth, and survival in physiological or pathological conditions. Aberrant MAPK signaling plays a pivotal role in carcinogenesis, which leads to development and progression of human cancer. Dual-specificity phosphatase 6 (DUSP6), a member of the MAPK phosphatase family, interacts with specifically targeted extracellular signal-regulated kinase 1/2 via negative feedback regulation in the MAPK pathway of mammalian cells...
February 2018: Cancer Biology & Medicine
Verena M Throm, David Männle, Thomas Giese, Andrea S Bauer, Matthias M Gaida, Juergen Kopitz, Thomas Bruckner, Konstanze Plaschke, Svetlana P Grekova, Klaus Felix, Thilo Hackert, Nathalia A Giese, Oliver Strobel
Smoking is associated with increased risk and poorer prognosis of pancreatic ductal adenocarcinoma (PDAC). Nicotine acts through cholinergic nicotinic receptors, preferentially α7 (CHRNA7) that also binds the endogenous ligand SLURP1 (Secreted Ly-6/uPAR-Related Protein 1). The clinical significance of SLURP1 and its interaction with nicotine in PDAC are unclear. We detected similar levels of SLURP1 in sera from healthy donors and patients with chronic pancreatitis or PDAC; higher preoperative values were associated with significantly better survival in patients with resected tumors...
February 20, 2018: Oncotarget
Francesca Vena, Ruochen Jia, Arman Esfandiari, Juan J Garcia-Gomez, Manuel Rodriguez-Justo, Jianguo Ma, Sakeena Syed, Lindsey Crowley, Brian Elenbaas, Samantha Goodstal, John A Hartley, Daniel Hochhauser
Targeting the DNA damage response (DDR) in tumors with defective DNA repair is a clinically successful strategy. The RAS/RAF/MEK/ERK signalling pathway is frequently deregulated in human cancers. In this study, we explored the effects of MEK inhibition on the homologous recombination pathway and explored the potential for combination therapy of MEK inhibitors with DDR inhibitors and a hypoxia-activated prodrug. We studied effects of combining pimasertib, a selective allosteric inhibitor of MEK1/2, with olaparib, a small molecule inhibitor of poly (adenosine diphosphate [ADP]-ribose) polymerases (PARP), and with the hypoxia-activated prodrug evofosfamide in ovarian and pancreatic cancer cell lines...
February 20, 2018: Oncotarget
Meng-Lin Liu, Meng-Long Wang, Jing-Jun Lv, Jie Wei, Jun Wan
Adriamycin (ADR) is a chemotherapeutic drug used to treat tumors in a clinical setting. However, its use is limited by a side effect of cardiotoxicity. Glibenclamide (Gli), an inhibitor of mitochondrial ATP-dependent potassium (K-ATP) channels, blocks the cardioprotective effects of mitochondrial K-ATP channel openers and induces apoptosis in rodent pancreatic islet β-cell lines. However, little is known about the role of Gli in ADR-induced cardiotoxicity. The present study was designed to investigate the impact of Gli on ADR-induced cardiotoxicity in rats...
April 2018: Experimental and Therapeutic Medicine
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