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Pancreas adenocarcinoma

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https://www.readbyqxmd.com/read/29223478/phase-ii-trial-of-veliparib-in-patients-with-previously-treated-brca-mutated-pancreas-ductal-adenocarcinoma
#1
Maeve A Lowery, David P Kelsen, Marinela Capanu, Sloane C Smith, Jonathan W Lee, Zsofia K Stadler, Malcolm J Moore, Hedy L Kindler, Talia Golan, Amiel Segal, Hannah Maynard, Ellen Hollywood, MaryEllen Moynahan, Erin E Salo-Mullen, Richard Kinh Gian Do, Alice P Chen, Kenneth H Yu, Laura H Tang, Eileen M O'Reilly
PURPOSE: BRCA-associated cancers have increased sensitivity to poly(ADP-ribose) polymerase inhibitors (PARPis). This single arm, non-randomised, multicentre phase II trial evaluated the response rate of veliparib in patients with previously treated BRCA1/2- or PALB2-mutant pancreatic adenocarcinoma (PDAC). METHODS: Patients with stage III/IV PDAC and known germline BRCA1/2 or PALB2 mutation, 1-2 lines of treatment, Eastern Cooperative Oncology Group 0-2, were enrolled...
December 7, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29221926/plasma-protein-profiling-of-patients-with-intraductal-papillary-mucinous-neoplasm-of-the-pancreas-as-potential-precursor-lesions-of-pancreatic-cancer
#2
Maria Ilies, Praveen Kumar Sappa, Cristina Adela Iuga, Felicia Loghin, Manuela Gesell Salazar, Frank Ulrich Weiss, Georg Beyer, Markus M Lerch, Uwe Völker, Julia Mayerle, Elke Hammer
Efforts for the early diagnosis of the pancreatic ductal adenocarcinoma (PDAC) have recently been driven to one of the precursor lesions, namely intraductal papillary mucinous neoplasm of the pancreas (IPMN). Only a few studies have focused on IPMN molecular biology and its overall progression to cancer. Therefore, IPMN lacks comprehensive characterization which makes its clinical management controversial. In this study, we characterized plasma proteins in the presence of IPMNs in comparison to healthy controls, chronic pancreatitis, and PDAC by a proteomics approach using data-independent acquisition based mass spectrometry...
December 5, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29221165/angiogenesis-in-adenosquamous-cancer-of-pancreas
#3
Nicola Silvestris, Katia Danza, Vito Longo, Oronzo Brunetti, Livia Fucci, Antonella Argentiero, Angela Calabrese, Ivana Cataldo, Roberto Tamma, Domenico Ribatti, Stefania Tommasi
Adenosquamous carcinoma of the pancreas (ASCP) is an uncommon variant of exocrine pancreatic malignancies, characterized by a histological admixture of adenomatous and squamous cell elements. This cancer is characterized by a poorly differentiated histology and a poorer clinical outcome compared to pancreatic ductal adenocarcinoma (PDAC). Unlike PDAC, that is characterized by a low microvascular density (MVD) and collapsed vasculature, no data are available about angiogenesis in ASPC. Immunohistochemical evaluation of MVD and trypatse-positive mast cells (MCs) were performed on a single case of ASCP compared to PDAC...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29215586/investigation-of-polyamine-metabolism-and-homeostasis-in-pancreatic-cancers
#4
Chelsea Massaro, Jenna Thomas, Otto Phanstiel Iv
Pancreatic cancers are currently the fourth leading cause of cancer-related death and new therapies are desperately needed. The most common pancreatic cancer is pancreatic ductal adenocarcinoma (PDAC). This report describes the development of therapies, which effectively deplete PDAC cells of their required polyamine growth factors. Of all human tissues, the pancreas has the highest level of the native polyamine spermidine. To sustain their high growth rates, PDACs have altered polyamine metabolism, which is reflected in their high intracellular polyamine levels and their upregulated import of exogenous polyamines...
December 7, 2017: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29213026/-case-of-protein-plug-in-the-pancreatic-duct-mimicking-pancreatic-cancer-concomitant-with-branch-type-intraductal-papillary-mucinous-neoplasm
#5
Ken Ichikawa, Kana Hattori, Tomoki Kusafuka, Takao Omori, Yasuo Ohkura, Takashi Hamada, Hiroki Taoka, Hiroki Tanaka, Shimpei Matsusaki, Youichirou Baba
A 65-year-old male was referred to our hospital 2 years ago for a multilocular cyst accompanied with a protein plug in the pancreas tail. He was diagnosed as having branch duct-type intraductal papillary mucinous neoplasm and was followed-up. Two years later, endoscopic ultrasonography revealed a hypoechoic lesion, 10mm in diameter, near the cyst-like lesion. Finally, he was diagnosed with small pancreatic adenocarcinoma concomitant with intraductal papillary mucinous neoplasm and underwent radical distal pancreatectomy with splenectomy...
2017: Nihon Shokakibyo Gakkai Zasshi, the Japanese Journal of Gastro-enterology
https://www.readbyqxmd.com/read/29212734/predictors-of-response-and-survival-in-locally-advanced-adenocarcinoma-of-the-pancreas-following-neoadjuvant-gtx-with-or-without-radiation-therapy
#6
William H Sherman, Elizabeth Hecht, David Leung, Kyung Chu
LESSONS LEARNED: There is no presenting parameter that predicts the success of neoadjuvant therapy for pancreatic cancer.Despite the images on scans following neoadjuvant therapy, all patients should be evaluated, because inflammation following radiation therapy (RT) may overstate the extent of tumor and vascular involvement. BACKGROUND: In patients presenting with locally advanced pancreatic adenocarcinoma deemed unresectable by two pancreatic cancer surgeons, we analyzed presenting tumor size, extent of vascular involvement, tumor markers, response to neoadjuvant gemcitabine (G), docetaxel (T), and capecitabine (X) with or without additional chemoradiotherapy with GX on R0 resection rates (≥2 mm margins), and survival...
December 6, 2017: Oncologist
https://www.readbyqxmd.com/read/29208039/effects-of-metamizole-maa-and-paracetamol-on-proliferation-apoptosis-and-necrosis-in-the-pancreatic-cancer-cell-lines-patu-8988%C3%A2-t-and-panc-1
#7
Manuela Malsy, Bernhard Graf, Anika Bundscherer
BACKGROUND: Adenocarcinoma of the pancreas is one of the most aggressive cancer diseases affecting the human body. Recent research has shown the importance of the perioperative phase in disease progression. Particularly during this vulnerable phase, substances such as metamizole and paracetamol are given as general anesthetics and postoperative analgesics. Therefore, the effects of metamizole and paracetamol on tumor progression should be investigated in more detail because the extent to which these substances influence the carcinogenesis of pancreatic carcinoma is still unclear...
December 6, 2017: BMC Pharmacology & Toxicology
https://www.readbyqxmd.com/read/29201179/gemcitabine-treatment-causes-resistance-and-malignancy-of-pancreatic-cancer-stem-like-cells-via-induction-of-lncrna-hotair
#8
Li Wang, Ping Dong, Weiguo Wang, Mingquan Huang, Bole Tian
Gemcitabine is the first-line chemotherapeutic agent for advanced adenocarcinoma of the pancreas, despite the high risk of chemoresistance as a major disadvantage. In the past few years, significant advances have been made in the field of pancreatic cancer stem-like cells (CSCs) and their critical roles in drug resistance, invasion and metastasis, which are tightly regulated by long non-coding RNAs (lncRNAs). The present study demonstrated that HOX antisense intergenic RNA (HOTAIR) is not different between the pancreatic cancer cell line PANC-1 and its enriched CSC sub-population...
November 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29197396/new-laparoscopic-procedure-for-left-sided-pancreatic-cancer-artery-first-approach-laparoscopic-ramps-using-3d-technique
#9
Michihiro Yamamoto, Masazumi Zaima, Hidekazu Yamamoto, Hideki Harada, Junichiro Kawamura, Masahiro Yamada, Tekefumi Yazawa, Junya Kawasoe
BACKGROUND: For left-sided pancreatic ductal adenocarcinoma (PDAC), radical antegrade modular pancreatosplenectomy (RAMPS) is a reasonable surgical approach for tumor-free margin resection and systemic lymph node clearance. In pancreaticoduodenectomy for PDAC, the superior mesenteric artery (SMA)-first approach (or the "artery-first approach") has become the standard procedure. With improvements in laparoscopic instruments and techniques, some surgeons attempted to apply laparoscopic RAMPS (L-RAMPS) for carefully selected patients with left-sided PDAC...
December 2, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29196804/igg4-related-disease-with-emphasis-on-the-biopsy-diagnosis-of-autoimmune-pancreatitis-and-sclerosing-cholangitis
#10
REVIEW
Sönke Detlefsen, Günter Klöppel
In 2011, chronic fibroinflammatory processes occurring simultaneously or metachronously in various organs and associated with elevated IgG4 serum levels and/or tissue infiltration with IgG4-positive plasma cells have been recognized as manifestations of a systemic disorder called IgG4-related disease (IgG4-RD). The histologic key findings are lymphoplasmacytic infiltration rich in IgG4-positive plasma cells combined with storiform fibrosis and obliterative phlebitis. Among the organs mainly affected by IgG4-RD are the pancreas and the extrahepatic bile ducts...
December 1, 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/29191507/viscoelastic-properties-of-human-pancreatic-tumors-and-in-vitro-constructs-to-mimic-mechanical-properties
#11
Andres Rubiano, Daniel Delitto, Song Han, Michael Gerber, Carly Galitz, Jose Trevino, Ryan M Thomas, Steven J Hughes, Chelsey S Simmons
Pancreatic ductal adenocarcinoma (PDAC) is almost universally fatal, in large part due to a protective fibrotic barrier generated by tumor-associated stromal (TAS) cells. This barrier is thought to promote cancer cell survival and confounds attempts to develop effective therapies. We present a 3D in vitro system that replicates the mechanical properties of the PDAC microenvironment, representing an invaluable tool for understanding the biology of the disease. Mesoscale indentation quantified viscoelastic metrics of resected malignant tumors, inflamed chronic pancreatitis regions, and histologically normal tissue...
November 27, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29191273/rare-tumors-and-lesions-of-the-pancreas
#12
REVIEW
John A Stauffer, Horacio J Asbun
There are a few entities that account for most solid and cystic masses of the pancreas. The pancreas harbors a wide array of diseases, including adenocarcinoma, and its variants, such as anaplastic and adenosquamous carcinoma. Other neoplasms include acinar cell carcinoma, solid pseudopapillary tumor, and sarcomas. Benign lesions include hamartomas, hemangiomas, lymphangioma, and plasmacytoma. Isolated metastases include renal cell carcinoma, melanoma, and other carcinomas. Benign inflammatory conditions, such as autoimmune pancreatitis and groove pancreatitis can also mimic solid neoplasms of the pancreas...
February 2018: Surgical Clinics of North America
https://www.readbyqxmd.com/read/29189328/understanding-disease-biology-and-informing-the-management-of-pancreas-cancer-with-preclinical-model-systems
#13
Martin C Whittle, Sunil R Hingorani
Recent advances in cytotoxic therapies for pancreatic ductal adenocarcinoma (PDA) are overshadowed by stalled clinical progress of more targeted strategies, the vast majority of which have failed in clinical trials. Inability to translate preclinical promise into clinical efficacy derives, in part, from imperfect disease modeling and mismatches between preclinical and clinical study design and execution. Into these gaps fall our patients who enter the clinical trial landscape expectantly and bear the brunt of its inadequacies...
November 2017: Cancer Journal
https://www.readbyqxmd.com/read/29189063/classification-morphology-molecular-pathogenesis-and-outcome-of-premalignant-lesions-of-the-pancreas
#14
Meredith E Pittman, Rema Rao, Ralph H Hruban
CONTEXT: - Invasive pancreatic ductal adenocarcinoma has a greater than 90% mortality rate at 5 years. Understanding noninvasive, curable precursor lesions gives us the best hope for reducing mortality from pancreatic ductal adenocarcinoma. The 3 pancreatic precursor lesions that have been well studied include intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia. OBJECTIVE: - To give an update on the latest clinical, molecular, and pathologic advances in intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia for the general surgical pathologist...
December 2017: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/29181837/expression-of-liver-x-receptors-in-normal-and-refractory-carcinoma-tissues-of-the-human-lung-and-pancreas
#15
Korehito Kashiwagi, Mai Yanagida, Daiki Matsui, Mizuko Tanaka, Kotaro Sugimoto, Honglei Chen, Naoki Ichikawa-Tomikawa, Shigeru Marubashi, Hiroyuki Suzuki, Hideki Chiba
Liver X receptors (LXRs) participate not only in maintaining cholesterol homeostasis but also in controlling cellular growth in many types of normal and tumor cells. We previously reported that LXRα was aberrantly expressed in human oral squamous cell carcinoma (HOSCC) tissues and cell lines, and that LXR stimulation led to significant reduction of proliferation of HOSCC cells via accelerating cholesterol efflux. Since LXRs and downstream proteins involved in cholesterol metabolism could be also applied as therapeutic targets in small cell lung carcinoma (SCLC) and pancreatic ductal adenocarcinoma (PDAC), we herein analyzed the distribution of LXR proteins in these refractory cancers as well as in normal human lung and pancreatic tissues...
November 28, 2017: Histology and Histopathology
https://www.readbyqxmd.com/read/29180759/nano-enabled-pancreas-cancer-immunotherapy-using-immunogenic-cell-death-and-reversing-immunosuppression
#16
Jianqin Lu, Xiangsheng Liu, Yu-Pei Liao, Felix Salazar, Bingbing Sun, Wen Jiang, Chong Hyun Chang, Jinhong Jiang, Xiang Wang, Anna M Wu, Huan Meng, Andre E Nel
While chemotherapy delivery by nanocarriers has modestly improved the survival prospects of pancreatic ductal adenocarcinoma (PDAC), additional engagement of the immune response could be game changing. We demonstrate a nano-enabled approach for accomplishing robust anti-PDAC immunity in syngeneic mice through the induction of immunogenic cell death (ICD) as well as interfering in the immunosuppressive indoleamine 2,3-dioxygenase (IDO) pathway. This is accomplished by conjugating the IDO inhibitor, indoximod (IND), to a phospholipid that allows prodrug self-assembly into nanovesicles or incorporation into a lipid bilayer that encapsulates mesoporous silica nanoparticles (MSNP)...
November 27, 2017: Nature Communications
https://www.readbyqxmd.com/read/29178025/pegylated-liposomal-irinotecan-hydrochloride-trihydrate-for-treating-pancreatic-cancer-after-gemcitabine-an-evidence-review-group-perspective-of-a-nice-single-technology-appraisal
#17
REVIEW
Nigel Fleeman, Ahmed Abdulla, Adrian Bagust, Sophie Beale, Marty Richardson, Angela Stainthorpe, Angela Boland, Eleanor Kotas, Joanne McEntee, Daniel Palmer
The National Institute for Health and Care Excellence (NICE) invited the manufacturer (Shire Pharmaceuticals) of pegylated liposomal irinotecan hydrochloride trihydrate (liposomal irinotecan) to submit clinical and cost-effectiveness evidence for its use in combination with 5-fluorouracil (5-FU) and folic acid/leucovorin (LV) for treating patients with pancreatic cancer following prior treatment with gemcitabine as part of the institute's Single Technology Appraisal process. The Liverpool Reviews and Implementation Group at the University of Liverpool was commissioned to act as the Evidence Review Group (ERG)...
November 24, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/29177161/early-gastroenteropancreatic-neuroendocrine-tumors-endoscopic-therapy-and-surveillance
#18
REVIEW
Hans Scherübl, Guillaume Cadiot
Neuroendocrine neoplasias (NEN) of the stomach, duodenum, pancreas, appendix, or rectum that are ≤1 cm in size as well as well-differentiated with World Health Organization grade 1 (G1) can be considered 'early' neuroendocrine tumors; they have a very good prognosis. Regarding prognosis, neuroendocrine tumors (NET) G1 must be distinguished from well-differentiated NET G2 and poorly differentiated neuroendocrine carcinomas (NEC) G3. NET are increasing, with a rise in the age-adjusted incidence in the USA by about 700% in the last 40 years...
October 2017: Visceral Medicine
https://www.readbyqxmd.com/read/29170051/multicenter-study-of-early-pancreatic-cancer-in-japan
#19
Atsushi Kanno, Atsushi Masamune, Keiji Hanada, Hiroyuki Maguchi, Yasuhiro Shimizu, Toshiharu Ueki, Osamu Hasebe, Takao Ohtsuka, Masafumi Nakamura, Mamoru Takenaka, Masayuki Kitano, Masataka Kikuyama, Toshifumi Gabata, Koji Yoshida, Tamito Sasaki, Masahiro Serikawa, Toru Furukawa, Akio Yanagisawa, Tooru Shimosegawa
BACKGROUND/OBJECTIVES: The diagnosis of early-stage pancreatic ductal adenocarcinoma (PDAC) is still challenging. We conducted a multicenter study to clarify the clinical features of early-stage PDAC in Japan. METHODS: We collected patients with stage 0 and stage I PDAC according to the sixth edition of the Japanese Classification of Pancreatic Carcinoma. We retrospectively analyzed the clinical profiles including opportunities for medical examination, imaging modalities and findings, methods of cytological diagnosis, and prognosis according to the stages at diagnosis...
November 20, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/29170050/identification-of-a-pyruvate-to-lactate-signature-in-pancreatic-intraductal-papillary-mucinous-neoplasms
#20
Alan R Penheiter, Dinesh K Deelchand, Emily Kittelson, Sibel Erdogan Damgard, Stephen J Murphy, Daniel R O'Brien, William R Bamlet, Marie R Passow, Thomas C Smyrk, Fergus J Couch, George Vasmatzis, John D Port, Małgorzata Marjańska, Stephanie K Carlson
OBJECTIVE: We used transcriptomic profiling and immunohistochemistry (IHC) to search for a functional imaging strategy to resolve common problems with morphological imaging of cystic neoplasms and benign cystic lesions of the pancreas. METHODS: Resected pancreatic cancer (n = 21) and normal pancreas were laser-capture micro-dissected, and transcripts were quantified by RNAseq. Functional imaging targets were validated at the protein level by IHC on a pancreatic adenocarcinoma tissue microarray and a newly created tissue microarray of resected intraductal papillary mucinous neoplasms (IPMNs) and IPMN-associated adenocarcinomas...
November 14, 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
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