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Pancreatic ductal adenocarcinoma

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https://www.readbyqxmd.com/read/28634684/heterogeneity-index-evaluated-by-slope-of-linear-regression-on-18-f-fdg-pet-ct-as-a-prognostic-marker-for-predicting-tumor-recurrence-in-pancreatic-ductal-adenocarcinoma
#1
Yong-Il Kim, Yong Joong Kim, Jin Chul Paeng, Gi Jeong Cheon, Dong Soo Lee, June-Key Chung, Keon Wook Kang
PURPOSE: (18)F-Fluorodeoxyglucose (FDG) positron emission tomography (PET)/computed tomography (CT) has been investigated as a method to predict pancreatic cancer recurrence after pancreatic surgery. We evaluated the recently introduced heterogeneity indices of (18)F-FDG PET/CT used for predicting pancreatic cancer recurrence after surgery and compared them with current clinicopathologic and (18)F-FDG PET/CT parameters. METHODS: A total of 93 pancreatic ductal adenocarcinoma patients (M:F = 60:33, mean age = 64...
June 20, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28634666/ct-density-in-the-pancreas-is-a-promising-imaging-predictor-for-pancreatic-ductal-adenocarcinoma
#2
Yasunari Fukuda, Daisaku Yamada, Hidetoshi Eguchi, Tomoki Hata, Yoshifumi Iwagami, Takehiro Noda, Tadafumi Asaoka, Koichi Kawamoto, Kunihito Gotoh, Shogo Kobayashi, Yutaka Takeda, Masahiro Tanemura, Masaki Mori, Yuichiro Doki
BACKGROUND: Fatty pancreas (FP) was recently recognized as a risk factor for pancreatic ductal adenocarcinoma (PDAC). It is unclear whether computed tomography (CT) can be used to make a FP diagnosis. This study investigated whether CT could provide a predictive value for PDAC by diagnosing FP. METHODS: The study included 183 consecutive patients who underwent distal pancreatectomy from February 2007 to January 2017, including 75 cases of PDAC and 108 cases of other pancreatic disease...
June 20, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28634594/pancreatic-cancer-heralded-by-worsening-glycemic-control-a-report-of-two-cases
#3
Dimpi Desai, Devika Rao, Vineeth Sukrithan, Eleanor Weinstein, Akankasha Goyal, Ulrich Schubart
Pancreatic ductal adenocarcinoma is the third leading cause of cancer-related death in the United States. Since it is usually diagnosed at an advanced stage, its prognosis remains poor. The initial presentation varies according to the tumor location. The most common presenting signs are weight loss, jaundice, and pain. Several epidemiological, clinical, and experimental studies over the past 2 decades have shown that long-standing diabetes is a modest risk factor for pancreatic cancer. However, new-onset diabetes has also been observed to be an early manifestation of pancreatic cancer...
April 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28631495/serum-endocannabinoids-in-assessing-pain-in-patients-with-chronic-pancreatitis-and-in-those-with-pancreatic-ductal-adenocarcinoma
#4
Raffaele Pezzilli, Pierangela Ciuffreda, Roberta Ottria, Alessandro Ravelli, Gianvico Melzi d'Eril, Alessandra Barassi
BACKGROUND: The endocannabinoid system plays a substantial role in analgesia. AIM: To analyze N-arachidonoylethanolamine (AEA), N-oleoylethanolamine (OEA), linoleoyl ethanolamide (LEA), α-linoleoyl ethanolamine (α-LNEA), N-palmitoylethanolamine (PEA) and N-stearoyl ethanolamine (SEA) in two groups of patients having chronic pancreatic diseases. PATIENTS AND METHODS: Twenty-six patients with chronic pancreatitis, 26 patients with pancreatic ductal adenocarcinoma and 36 healthy subjects were studied...
June 20, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28629416/ct-texture-features-are-associated-with-overall-survival-in-pancreatic-ductal-adenocarcinoma-a-quantitative-analysis
#5
Armin Eilaghi, Sameer Baig, Yucheng Zhang, Junjie Zhang, Paul Karanicolas, Steven Gallinger, Farzad Khalvati, Masoom A Haider
BACKGROUND: To assess whether CT-derived texture features predict survival in patients undergoing resection for pancreatic ductal adenocarcinoma (PDAC). METHODS: Thirty patients with pre-operative CT from 2007 to 2012 for PDAC were included. Tumor size and five texture features namely uniformity, entropy, dissimilarity, correlation, and inverse difference normalized were calculated. Mann-Whitney rank sum test was used to compare tumor with normal pancreas. Receiver operating characteristics (ROC) analysis, Cox regression and Kaplan-Meier tests were used to assess association of texture features with overall survival (OS)...
June 19, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28628722/microscopic-lymphovascular-invasion-is-an-independent-predictor-of-survival-in-resected-pancreatic-ductal-adenocarcinoma
#6
Jeffrey D Epstein, Geoffrey Kozak, Zhi Ven Fong, Jin He, Ammar A Javed, Upasana Joneja, Wei Jiang, Cristina R Ferrone, Keith D Lillemoe, John L Cameron, Matthew J Weiss, Harish Lavu, Charles J Yeo, Carlos Fernandez-Del Castillo, Christopher L Wolfgang, Jordan M Winter
Background and Objectives Despite routine inclusion of lymphovascular invasion (LVI) status in pathologic reports of resected pancreatic ductal adenocarcinomas (PDA), the clinical implications of LVI have not been well characterized. Methods This study is a retrospective review of 2640 patients who underwent a pancreatectomy for PDA at Thomas Jefferson University Hospital, Massachusetts General Hospital, or Johns Hopkins Hospital (2003-2014). Clinical and pathologic records were extracted from institutional databases...
June 19, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28627758/spectral-library-based-glycopeptide-analysis-detection-of-circulating-galectin-3-binding-protein-in-pancreatic-cancer
#7
Eslam N Nigjeh, Ru Chen, Yasuko Allen-Tamura, Randall E Brand, Teresa A Brentnall, Sheng Pan
PURPOSE: Pancreatic ductal adenocarcinoma (PDAC) is a lethal disease characterized by its late diagnosis, poor prognosis and rapid development of drug resistance. Using the data independent acquisition (DIA) technique, we applied a spectral library-based proteomic approach to analyze N-glycosylated peptides in human plasma, in the context of pancreatic cancer study. EXPERIMENTAL DESIGN: We extended the application of DIA to the quantification of N-glycosylated peptides enriched from plasma specimens from a clinically well-defined cohort that consists of patients with early stage PDAC, chronic pancreatitis and healthy subjects...
June 19, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28627323/perspective-of-%C3%AE-v%C3%AE-6-integrin-imaging-for-clinical-management-of-pancreatic-carcinoma-and-its-precursor-lesions
#8
Katja Steiger, Anna-Melissa Schlitter, Wilko Weichert, Irene Esposito, Hans-Jürgen Wester, Johannes Notni
ß6-integrin immunohistochemistry analysis of a large number of pancreatic ductal adenocarcinoma (PDAC, 383 primary tumors, 7 lymph node, and 8 distant metastases) and 34 pancreatic intraepithelial neoplasia (PanIN) specimens revealed a high prevalence of αvß6-integrin expression in PDAC primaries (88%) and in almost all metastases, as well as in PanIN (57%). These findings underscore the high potential of a novel αvß6-integrin targeting positron emission tomography (PET) radiopharmaceutical, Ga-68-Avebehexin, for early diagnosis of pancreatic cancer...
January 1, 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28624807/regulation-of-actin-binding-protein-anln-by-antitumor-mir-217-inhibits-cancer-cell-aggressiveness-in-pancreatic-ductal-adenocarcinoma
#9
Tetsuya Idichi, Naohiko Seki, Hiroshi Kurahara, Keiichi Yonemori, Yusaku Osako, Takayuki Arai, Atsushi Okato, Yoshiaki Kita, Takaaki Arigami, Yuko Mataki, Yuko Kijima, Kosei Maemura, Shoji Natsugoe
Analysis of our microRNA (miRNA) expression signature of pancreatic ductal adenocarcinoma (PDAC) revealed that microRNA-217 (miR-217) was significantly reduced in cancer tissues. The aim of this study was to investigate the antitumor roles of miR-217 in PDAC cells and to identify miR-217-mediated molecular pathways involved in PDAC aggressiveness. The expression levels of miR-217 were significantly reduced in PDAC clinical specimens. Ectopic expression of miR-217 significantly suppressed cancer cell migration and invasion...
May 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624798/selection-of-optimal-molecular-targets-for-tumor-specific-imaging-in-pancreatic-ductal-adenocarcinoma
#10
Willemieke Tummers, Arantza Farina Sarasqueta, Martin Boonstra, Hendrica Prevoo, Cornelis Sier, Sven Mieog, Johannes Morreau, Casper van Eijck, Peter Kuppen, Cornelis van de Velde, Bert Bonsing, Alexander Vahrmeijer, Rutger-Jan Swijnenburg
Discrimination of pancreatic ductal adenocarcinoma (PDAC) from chronic pancreatitis (CP) or peritumoral inflammation is challenging, both at preoperative imaging and during surgery, but it is crucial for proper therapy selection. Tumor-specific molecular imaging aims to enhance this discrimination and to help select and stratify patients for resection. We evaluated various biomarkers for the specific identification of PDAC and associated lymph node metastases. Using immunohistochemistry (IHC), expression levels and patterns were investigated of integrin αvβ6, carcinoembryonic antigen-related cell adhesion molecule 5 (CEACAM5), Cathepsin E (Cath E), epidermal growth factor receptor (EGFR), hepatocyte growth factor receptor (c-MET), thymocyte differentiation antigen 1 (Thy1), and urokinase-type plasminogen activator receptor (uPAR)...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624797/lymph-node-metastasis-and-the-physicochemical-micro-environment-of-pancreatic-ductal-adenocarcinoma-xenografts
#11
Lise Mari K Andersen, Catherine S Wegner, Trude G Simonsen, Ruixia Huang, Jon-Vidar Gaustad, Anette Hauge, Kanthi Galappathi, Einar K Rofstad
Pancreatic ductal adenocarcinoma (PDAC) patients develop lymph node metastases early and have a particularly poor prognosis. The poor prognosis has been shown to be associated with the physicochemical microenvironment of the tumor tissue, which is characterized by desmoplasia, abnormal microvasculature, extensive hypoxia, and highly elevated interstitial fluid pressure (IFP). In this study, we searched for associations between lymph node metastasis and features of the physicochemical microenvironment in an attempt to identify mechanisms leading to metastatic dissemination and growth...
May 26, 2017: Oncotarget
https://www.readbyqxmd.com/read/28624029/effect-of-complications-on-oncologic-outcomes-after-pancreaticoduodenectomy-for-pancreatic-cancer
#12
Anh-Thu Le, Bin Huang, Dima Hnoosh, Hayder Saeed, Sean P Dineen, Peter J Hosein, Eric B Durbin, Mahesh Kudrimoti, Patrick C McGrath, Ching-Wei D Tzeng
BACKGROUND: Although adjuvant therapy (AT) is a necessary component of multimodality therapy for pancreatic ductal adenocarcinoma (PDAC), its application can be hindered by post-pancreaticoduodenectomy (PD) complications. The primary aim of this study was to evaluate the impact of post-PD complications on AT utilization and overall survival (OS). METHODS: Patients undergoing PD without neoadjuvant therapy for stages I-III PDAC at a single institution (2007-2015) were evaluated...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28624015/imaging-modalities-in-the-diagnosis-of-pancreatic-adenocarcinoma-a-systematic-review-and-meta-analysis-of-sensitivity-specificity-and-diagnostic-accuracy
#13
James Toft, William J Hadden, Jerome M Laurence, Vincent Lam, Lawrence Yuen, Anna Janssen, Henry Pleass
BACKGROUND: Pancreatic cancer, primarily pancreatic ductal adenocarcinoma (PDAC), accounts for 2.4% of cancer diagnoses and 5.8% of cancer death annually. Early diagnoses can improve 5-year survival in PDAC. The aim of this systematic review was to determine the sensitivity, specificity and diagnostic accuracy values for MRI, CT, PET&PET/CT, EUS and transabdominal ultrasound (TAUS) in the diagnosis of PDAC. METHODS: A systematic review was undertaken to identify studies reporting sensitivity, specificity and/or diagnostic accuracy for the diagnosis of PDAC with MRI, CT, PET, EUS or TAUS...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28623515/pancreatic-ductal-adenocarcinoma-metastatic-disease
#14
REVIEW
A J Muñoz Martín, J Adeva, J Martínez-Galán, J J Reina, M Hidalgo
The treatment of choice of metastatic PADC is systemic chemotherapy. In the last decade, there have been significant advances in this area. New combination poli-chemotherapy schemes have shown a significant increase in overall survival and progression-free survival without impairing quality of life. In addition, the value of second-line chemotherapy treatment has consolidated and a new concept called "therapeutic sequencing" has also emerged. The aim of this article is to review the different therapeutic options in metastatic PDAC based on patient's characteristics...
June 16, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28620144/optimized-roi-size-on-adc-measurements-of-normal-pancreas-pancreatic-cancer-and-mass-forming-chronic-pancreatitis
#15
Chao Ma, Jing Li, Mbaiaoure Barak Boukar, Panpan Yang, Li Wang, Luguang Chen, Li Su, Jianxun Qu, Shi-Yue Chen, Qiang Hao, Jian-Ping Lu
OBJECTIVES: To investigate the effects of region of interest (ROI) sizes on apparent diffusion coefficient (ADC) measurements for the differentiation of normal pancreas (NP), pancreatic ductal adenocarcinoma (PDAC) and mass-forming chronic pancreatitis (MFCP). RESULTS: There were no significant differences for the mean ADCs measured by 12 different-size ROIs for MFCP, or PDAC and NP (P = 0.858-1.0). With the increase of ROI size (≥ 55 mm2), ADCs of PDAC were significantly lower than those of NP (all P < 0...
June 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28620134/reciprocal-regulation-of-dgcr5-and-mir-320a-affects-the-cellular-malignant-phenotype-and-5-fu-response-in-pancreatic-ductal-adenocarcinoma
#16
Sun Yong, Yu Yabin, Zhou Bing, Zhu Chuanrong, Gu Dianhua, Zhang Jianhuai, Yuan Weidong, Wang Shuming, Liu Ling
Pancreatic ductal adenocarcinoma (PDAC) is one of the most aggressive and lethal malignancies. Long non-coding microRNAs (lncRNAs) are a newly discovered type of regulatory molecule with both diagnostic and prognostic value, but the role of lncRNA in PDAC has not been well investigated until now. Here, we present evidence that shows that the lncRNA DGCR5 is significantly reduced in PDAC tissues as well as in PDAC cell lines and that the downregulation of DGCR5 predicts poor prognosis. Ectopic expression of DGCR5 inhibits the proliferation and migration, and promotes 5-FU resistances of PDAC cells...
June 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28619945/transcriptional-activation-of-ragd-gtpase-controls-mtorc1-and-promotes-cancer-growth
#17
Chiara Di Malta, Diletta Siciliano, Alessia Calcagni, Jlenia Monfregola, Simona Punzi, Nunzia Pastore, Andrea N Eastes, Oliver Davis, Rossella De Cegli, Angela Zampelli, Luca G Di Giovannantonio, Edoardo Nusco, Nick Platt, Alessandro Guida, Margret Helga Ogmundsdottir, Luisa Lanfrancone, Rushika M Perera, Roberto Zoncu, Pier Giuseppe Pelicci, Carmine Settembre, Andrea Ballabio
The mechanistic target of rapamycin complex 1 (mTORC1) is recruited to the lysosome by Rag guanosine triphosphatases (GTPases) and regulates anabolic pathways in response to nutrients. We found that MiT/TFE transcription factors-master regulators of lysosomal and melanosomal biogenesis and autophagy-control mTORC1 lysosomal recruitment and activity by directly regulating the expression of RagD. In mice, this mechanism mediated adaptation to food availability after starvation and physical exercise and played an important role in cancer growth...
June 16, 2017: Science
https://www.readbyqxmd.com/read/28619830/differential-and-joint-effects-of-metformin-and-statins-on-overall-survival-of-elderly-patients-with-pancreatic-adenocarcinoma-a-large-population-based-study
#18
Jian-Yu E, Shou-En Lu, Yong Lin, Judith M Graber, David Rotter, Lanjing Zhang, Gloria M Petersen, Kitaw Demissie, Grace Lu-Yao, Xiang-Lin Tan
BACKGROUND: Published evidence indicates that individual use of metformin and statin is associated with reduced cancer mortality. However, their differential and joint effects on pancreatic cancer survival are inconclusive. METHODS: We identified a large population-based cohort of 12,572 patients aged 65 years or older with primary pancreatic ductal adenocarcinoma (PDAC) diagnosed between 2008 and 2011 from the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database...
June 15, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28619758/co-targeting-of-mek-and-pdgfr-stat3-pathways-to-treat-pancreaticductal-adenocarcinoma
#19
Nisebita Sahu, Emily Chan, Felix Chu, Thinh Pham, Hartmut Koeppen, William Forrest, Mark Merchant, Jeff Settleman
Pancreatic ductal adenocarcinoma (PDAC) is among the most lethal human diseases and remains largely refractory to available drug treatments.  Insufficient targeting of the known oncogenic drivers and activation of compensatory feedback loops and inability to prevent metastatic spread contribute to poor prognosis for this disease. The KRAS-driven MEK pathway is mutationally activated in most pancreatic cancers and is an important target for therapeutics. Using a 2-dimensional monolayer culture system as well as 3-dimensional spheroid culture system, we conducted a screen of a large panel of anti-cancer agents, and found that MEK inhibitors were most effective in targeting PDAC spheroids in comparison to monolayer cultures...
June 15, 2017: Molecular Cancer Therapeutics
https://www.readbyqxmd.com/read/28618958/current-and-future-biomarkers-for-pancreatic-adenocarcinoma
#20
Sven H Loosen, Ulf P Neumann, Christian Trautwein, Christoph Roderburg, Tom Luedde
Although pancreatic cancer is only the twelfth most common type of cancer in the world, it features a very unfavorable prognosis. The mortality rate almost equals the incidence rate, corroborating the very poor prognosis of pancreatic cancer. The 5-year survival rate for all stages of pancreatic ductal adenocarcinoma is only 7%. Surgical resection represents the only potentially curative treatment option for pancreatic ductal adenocarcinoma patients but is often not feasible due to the advanced stage of the disease upon diagnosis...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
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