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Pancreas adenocarcinoma

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https://www.readbyqxmd.com/read/28317586/strategies-to-improve-local-control-of-resected-pancreas-adenocarcinoma
#1
Paul H Sugarbaker
BACKGROUND: Only approximately one in ten pancreas cancer patients is a candidate for potentially curative resection of this disease. Even this small fraction of patients has a poor prognosis following pancreatico-duodenectomy. The disease has an anatomic location that makes it difficult for the surgeon to maintain adequate margins of resection and prevent tumor spillage at the time of resection. Also, the disease is biologically aggressive and even with a complete visible resection of the disease, micrometastases are likely to remain behind...
March 2017: Surgical Oncology
https://www.readbyqxmd.com/read/28316225/-the-clinical-impact-of-artery-first-approach-combined-with-vascular-resection-and-reconstruction-in-the-treatment-of-pancreatic-head-carcinoma
#2
J L Huang, W G Li, F Z Chen, Z J Su, F M Li, B Liu
Objective: To evaluate the application of artery first, combined vascular resection and reconstruction in the treatment of pancreatic head carcinoma. Methods: The clinical data of 13 patients with pancreatic head cancer were retrospectively analyzed from February 2014 to March 2016 in the Affiliated Hospital of Xiamen University. Preoperative computed tomography of high resolution layer or magnetic resonance imaging examination demonstrated pancreatic head carcinoma, as well as close adhesion, stenosis, compression or displacement of superior mesenteric vein or portal vein wall...
March 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28315906/nineteen-cases-with-synchronous-multiple-primary-cancers-studied-by-18-f-fdg-pet-ct
#3
Lifang Pang, Guobing Liu, Hongcheng Shi, Pengcheng Hu, Beilei Li, Dengfeng Cheng
OBJECTIVE: To evaluate the value of fluorine -18-fuoro-2-deoxyglucose positron emission tomography/computed tomography ((18)F-FDG PET/CT) in evaluating synchronous multiple primary cancers (SMPC). METHODS: Nineteen patients with pathologically-confirmed SMPC were collected. Clinical and (18)F-FDG PET/CT characteristics of these patients were reviewed and analyzed. Maximum standardized uptake value, (SUVmax) of all lesions was measured and difference (Δ)SUVmax between the SUV of two primary tumors in each patient was calculated as: [(the larger SUVmax - the smaller SUVmax)/ the larger SUVmax]×100%...
March 20, 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28315061/external-validation-of-the-simplified-preoperative-assessment-for-low-grade-mucinous-adenocarcinoma-of-the-appendix
#4
Vladimir Milovanov, Armando Sardi, Nail Aydin, Carol Nieroda, Michelle Sittig, Vadim Gushchin
BACKGROUND: MD Anderson Cancer Center developed a computed tomography (CT)-based preoperative assessment tool simplified preoperative assessment for appendix tumor (SPAAT) for predicting incomplete cytoreduction (IC) in low-grade mucinous adenocarcinoma (LGMA) of the appendix, based on preoperative CT scans. This study independently evaluates the tool's performance. METHODS: Seventy-six preoperative CT scans of LGMA patients were evaluated by two surgeons unfamiliar with the patients' medical history...
March 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28314316/non-whipple-operations-in-the-management-of-benign-premalignant-and-early-cancerous-duodenal-lesions
#5
Alexandros Papalampros, Demetrios Moris, Athanasios Petrou, Nikolaos Dimitrokallis, Ioannis Karavokyros, Dimitrios Schizas, Ioanna Delladetsima, Theodore N Pappas, Evangelos Felekouras
AIM: We reviewed our 20-year experience with non-Whipple operations (pancreas-preserving duodenectomy and transduodenal ampullectomy) for the treatment of benign, premalignant or early-stage malignant duodenal lesions. PATIENTS AND METHODS: Twenty-four patients who underwent non-Whipple operations between January 1996 and December 2015 were identified from an institutional database and retrospectively analyzed. RESULTS: Between 1996 and 2015, 10 patients underwent pancreas-preserving duodenectomy and 14 patients underwent transduodenal ampullectomy...
March 2017: Anticancer Research
https://www.readbyqxmd.com/read/28303855/expression-and-prognostic-value-of-indoleamine-2-3-dioxygenase-in-pancreatic-cancer
#6
Tao Zhang, Xiang-Long Tan, Yong Xu, Zi-Zheng Wang, Chao-Hui Xiao, Rong Liu
BACKGROUND: Indoleamine 2,3-dioxygenase (IDO), an enzyme for tryptophan metabolism through the kynurenine pathway, exhibits an immunosuppressive effect and induces immune tolerance in tumor cells. The effects of IDO on pancreatic cancer are poorly understood. This study aimed to investigate the expression and prognostic significance of IDO in pancreatic cancer. METHODS: We evaluated the protein expression of IDO in PANC-1, CFPAC-1, and BxPC-3 cell lines with or without 48 h treatment by 500 U/ml interferon-γ (IFN-γ)...
March 20, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28299667/runx3-and-cell-fate-decisions-in-pancreas-cancer
#7
Martin C Whittle, Sunil R Hingorani
The RUNX family transcription factors are critical regulators of development and frequently dysregulated in cancer. RUNX3, the least well characterized of the three family members, has been variously described as a tumor promoter or suppressor, sometimes with conflicting results and opinions in the same cancer and likely reflecting a complex role in oncogenesis. We recently identified RUNX3 expression as a crucial determinant of the predilection for pancreatic ductal adenocarcinoma (PDA) cells to proliferate locally or promulgate throughout the body...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28292434/pancreatic-cancer-genomics-2-0-profiling-metastases
#8
Eric A Collisson, Anirban Maitra
Pancreatic ductal adenocarcinoma, even when diagnosed early, nearly always metastasizes. Recurrent mutations and genomic instability are early events in the disease. Two recent papers advance our understanding of how the cancer genome evolves as the primary tumor migrates from its origin in the pancreas to colonize distant metastatic sites.
March 13, 2017: Cancer Cell
https://www.readbyqxmd.com/read/28286044/preoperative-fecal-elastase-1-is-a-useful-prognostic-marker-following-curative-resection-of-pancreatic-cancer
#9
Jin Hong Lim, Joon Seong Park, Dong Sup Yoon
BACKGROUND: The clinical relevance of fibrosis with regard to tumor progression is supported by the correlation between fibrosis and poor outcomes. Fecal elastase-1 (FE-1) level has been used to assess exocrine dysfunction of the pancreas and to predict pancreas fibrosis. The aim of this study was to assess the impact of FE-1 on the survival of pancreatic cancer patients. METHODS: Between January 2006 and December 2014, 136 patients with pancreatic adenocarcinoma underwent R0 resection at Gangnam Severance Hospital, Korea...
March 9, 2017: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28280649/first-case-of-foot-drop-associated-with-capecitabine-in-a-patient-with-thymidylate-synthase-polymorphism
#10
Andrew B Wilks, Muhammad W Saif
Capecitabine, an oral prodrug of 5-FU, has been approved by the FDA for use in patients with breast and colon cancers. In addition, capecitabine is commonly used in patients with other malignancies such as pancreatic, gastroesophageal, and hepatobiliary tract cancers. Though cerebellar toxicity is a rare but well-known side effect of intravenous 5-FU therapy, peripheral neuropathy with capecitabine has only been described in rare cases. In this case report, we describe a 79-year-old patient with locally advanced adenocarcinoma of the pancreas undergoing chemoradiation therapy with capecitabine who developed peripheral sensorimotor neuropathy...
January 24, 2017: Curēus
https://www.readbyqxmd.com/read/28278652/chemical-constituents-and-in-vitro-biological-activities-of-eremurus-spectabilis-leaves
#11
Leyla Karakaya, Yurdanur Akgül, Ayşe Nalbantsoy
In the present study, phytochemical investigation of the young leaves of Eremurus spectabilis let to the isolation six compounds (1-6). Their structure was determined by spectroscopic analysis and comparison with the literature data. All compounds were isolated for the first time from E. spectabilis. Isolated compounds and prepared extracts did not show cytotoxic activity against HeLa (Human cervix adenocarcinoma), A-549 (Human alveolar adenocarcinoma), MCF-7 (Human breast adenocarcinoma), mPANC96 (Human pancreas adenocarcinoma), U87MG (Glioblastoma), PC3 (Prostate), CaCo-2 (Colon), HEK293 (Human embryonic kidney cells) cell lines...
February 20, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28272465/reconstituting-development-of-pancreatic-intraepithelial-neoplasia-from-primary-human-pancreas-duct-cells
#12
Jonghyeob Lee, Emily R Snyder, Yinghua Liu, Xueying Gu, Jing Wang, Brittany M Flowers, Yoo Jung Kim, Sangbin Park, Gregory L Szot, Ralph H Hruban, Teri A Longacre, Seung K Kim
Development of systems that reconstitute hallmark features of human pancreatic intraepithelial neoplasia (PanINs), the precursor to pancreatic ductal adenocarcinoma, could generate new strategies for early diagnosis and intervention. However, human cell-based PanIN models with defined mutations are unavailable. Here, we report that genetic modification of primary human pancreatic cells leads to development of lesions resembling native human PanINs. Primary human pancreas duct cells harbouring oncogenic KRAS and induced mutations in CDKN2A, SMAD4 and TP53 expand in vitro as epithelial spheres...
March 8, 2017: Nature Communications
https://www.readbyqxmd.com/read/28272344/nutritional-and-metabolic-derangements-in-pancreatic-cancer-and-pancreatic-resection
#13
REVIEW
Taylor M Gilliland, Nicole Villafane-Ferriol, Kevin P Shah, Rohan M Shah, Hop S Tran Cao, Nader N Massarweh, Eric J Silberfein, Eugene A Choi, Cary Hsu, Amy L McElhany, Omar Barakat, William Fisher, George Van Buren
Pancreatic cancer is an aggressive malignancy with a poor prognosis. The disease and its treatment can cause significant nutritional impairments that often adversely impact patient quality of life (QOL). The pancreas has both exocrine and endocrine functions and, in the setting of cancer, both systems may be affected. Pancreatic exocrine insufficiency (PEI) manifests as weight loss and steatorrhea, while endocrine insufficiency may result in diabetes mellitus. Surgical resection, a central component of pancreatic cancer treatment, may induce or exacerbate these dysfunctions...
March 7, 2017: Nutrients
https://www.readbyqxmd.com/read/28270694/acinar-cell-plasticity-and-development-of-pancreatic-ductal-adenocarcinoma
#14
REVIEW
Peter Storz
Acinar cells in the adult pancreas show high plasticity and can undergo transdifferentiation to a progenitor-like cell type with ductal characteristics. This process, termed acinar-to-ductal metaplasia (ADM), is an important feature facilitating pancreas regeneration after injury. Data from animal models show that cells that undergo ADM in response to oncogenic signalling are precursors for pancreatic intraepithelial neoplasia lesions, which can further progress to pancreatic ductal adenocarcinoma (PDAC). As human pancreatic adenocarcinoma is often diagnosed at a stage of metastatic disease, understanding the processes that lead to its initiation is important for the discovery of markers for early detection, as well as options that enable an early intervention...
March 8, 2017: Nature Reviews. Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28267771/challenges-in-pancreatic-adenocarcinoma-surgery-national-survey-and-current-practice-guidelines
#15
Sameer A Dhayat, Philip Mirgorod, Christina Lenschow, Norbert Senninger, Christoph Anthoni, Thorsten Vowinkel
BACKGROUND: Pancreatic ductal adenocarcinoma (PDAC) remains one of the most deadly cancers in Europe and the USA. There is consensus that radical tumor surgery is the only viable option for any long-term survival in patients with PDAC. So far, limited data are available regarding the routine surgical management of patients with advanced PDAC in the light of surgical guidelines. METHODS: A national survey on perioperative management of patients with PDAC and currently applied criteria on their tumor resectability in German university and community hospitals was carried out...
2017: PloS One
https://www.readbyqxmd.com/read/28260136/cells-of-origin-of-pancreatic-neoplasms
#16
REVIEW
Junpei Yamaguchi, Yukihiro Yokoyama, Toshio Kokuryo, Tomoki Ebata, Masato Nagino
Pancreatic ductal adenocarcinoma (PDAC) is a lethal malignant disease associated with poor prognosis, despite recent medical advances. It is of great importance to understand the initial events and cells of origin of pancreatic cancer to prevent the development and progression of PDAC. There are three distinct precursor lesions that develop into PDAC: pancreatic intraepithelial neoplasms (PanINs), intraductal papillary mucinous neoplasms (IPMNs), and mucinous cystic neoplasms (MCNs). Studies on genetically engineered mouse models have revealed that the initiation and development of these lesions largely depend on genetic alterations...
March 4, 2017: Surgery Today
https://www.readbyqxmd.com/read/28249896/lipocalin-2-promotes-pancreatic-ductal-adenocarcinoma-by-regulating-inflammation-in-the-tumor-microenvironment
#17
Sobeyda Gomez-Chou, Agnieszka Swidnicka-Siergiejko, Niharika Badi, Myrriah Chavez-Tomar, Gregory B Lesinski, Tanios Bekaii-Saab, Matthew R Farren, Thomas A Mace, Carl Schmidt, Yan Liu, Defeng Deng, Rosa F Hwang, Liran Zhou, Todd T Moore, Deyali Chatterjee, Huamin Wang, Xiaohong Leng, Ralph B Arlinghaus, Craig D Logsdon, Zobeida Cruz-Monserrate
Lipocalin-2 (LCN2) promotes malignant development in many cancer types. LCN2 is upregulated in patients with pancreatic ductal adenocarcinoma (PDAC) and in obese individuals, but whether it contributes to PDAC development is unclear. In this study, we investigated the effects of Lcn2 depletion on diet-induced obesity, inflammation and PDAC development. Mice with acinar cell-specific expression of KrasG12D were crossed with Lcn2-depleted animals and fed isocaloric diets with varying amounts of fat content. Pancreas were collected and analyzed for inflammation, pancreatic intraepithelial neoplasia (PanIN) and PDAC...
March 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28248881/a-case-of-mixed-adenoneuroendocrine-carcinoma-of-the-pancreas-immunohistochemical-analysis-for-histogenesis
#18
Masaru Murata, Hidekazu Takahashi, Moyuru Yamada, Misa Song, Masahiro Hiratsuka
RATIONALE: Tumors with multiple histological features, such as adenocarcinomas and neuroendocrine carcinomas, were included as a new category of neuroendocrine carcinomas in the 2010 World Health Organization classification. We recently experienced a rare case of a pancreatic carcinoma with both adenocarcinoma and neuroendocrine carcinoma components, a so-called mixed adenoneuroendocrine carcinoma. PATIENT CONCERNS AND DIAGNOSIS: A 66-year-old man was referred to our hospital with obstructive jaundice...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28246549/insights-into-the-genetic-risk-factors-for-the-development-of-pancreatic-disease
#19
REVIEW
Zachary Zator, David C Whitcomb
Diseases of the exocrine pancreas such as recurrent acute pancreatitis (RAP), chronic pancreatitis (CP) and pancreatic ductal adenocarcinoma (PDAC) represent syndromes defined according to traditional clinicopathologic criteria. The failure of traditional approaches to identify primary mechanisms underlying these progressive disorders illustrates a greater problem of failure of the germ theory of disease for complex disorders. Multiple genetic discoveries and new complex disease models force consideration of a new paradigm of 'precision medicine', requiring a new mechanistic definition of CP...
March 2017: Therapeutic Advances in Gastroenterology
https://www.readbyqxmd.com/read/28246088/adiposity-and-cancer-at-major-anatomical-sites-umbrella-review-of-the-literature
#20
Maria Kyrgiou, Ilkka Kalliala, Georgios Markozannes, Marc J Gunter, Evangelos Paraskevaidis, Hani Gabra, Pierre Martin-Hirsch, Konstantinos K Tsilidis
Objective To evaluate the strength and validity of the evidence for the association between adiposity and risk of developing or dying from cancer.Design Umbrella review of systematic reviews and meta-analyses.Data sources PubMed, Embase, Cochrane Database of Systematic Reviews, and manual screening of retrieved references.Eligibility criteria Systematic reviews or meta-analyses of observational studies that evaluated the association between indices of adiposity and risk of developing or dying from cancer...
February 28, 2017: BMJ: British Medical Journal
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